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17 th INTERNATIONAL CONFERENCE<br />

ON PHOSPHORUS CHEMISTRY<br />

(ICPC-17)<br />

<strong>ABSTRACT</strong> <strong>BOOK</strong><br />

April 15 - 19, 2007<br />

Xiamen, China


Plenary Lecture<br />

INDEX<br />

PL-1 Structure and reactivity of inorganic phosphorus compounds Francois Mathey······································ 1<br />

PL-2 Phosphate - the cornerstone of life G. Micheal Blackburn············································································· 2<br />

Symposium 1<br />

PHOSPHORUS IN ORGANIC SYNTHESIS & STEREOCHEMISTRY; STRUCTURE AND<br />

REACTIVITY OF ORGANOPHOSPHORUS COMPOUNDS<br />

KL-1 Chemistry of carbaphosphatranes Takayuki Kawashima·············································································· 5<br />

KL-2 Development methods synthesis of polyheterophosphacyclanes with endocyclic P-C bond on the<br />

basis of functionalized alkylphosphonates(-phosphinates) M.A.Pudovik, N.A.Khailova,<br />

R.Kh.Bagautdinova, S.A.Terent’eva, L.K.Kibardina································································································· 6<br />

KL-3 Rings and cages derived from phospha-alkynes John Nixon ···································································· 7<br />

IL-1 Metal-mediated P-H addition as a powerful tool for the construction of C-P bonds: from<br />

academic interests to practical applications Li-Biao Han ········································································· 8<br />

IL-2 New synthetic approaches to the chiral cyclic and macrocyclic phosphine ligands O.G.Sinyashin,<br />

A.A.Karasik, E.Hey-Hawkins································································································································10<br />

O-1 Synthesis and properties of λ 5 -phosphinines and λ 5 -azaphosphinines Aleksandr N.Kostyuk,<br />

Yurii V.Svyashchenko, Dmitrii M.Volochnyuk, Dmitrii A.Sibgatulin, Aleksandr M.Pinchuk·······································12<br />

O-2 The synthesis and spectroscopic properties of spiro-ansa-spiro phosphazenes Amgalan Natsagdorj,<br />

Selen Bilge, Semsay Demiriz, Zeynel Kilic·············································································································13<br />

O-3 Acetylenephosphonates: reactions with nucleophiles B.I. Ionin, A.V. Dogadina, A.V. Aleksandrova<br />

N.G. Didkovskii ···················································································································································14<br />

O-4 New insights in P-nucleophile addıtıons onto unsaturated imino derivatıves for the synthesıs of<br />

P-analogues of glutamıc acid Christian V. Stevens, Kristof Moonen, Ellen Van Meenen ·························15<br />

O-5 A facile and highly efficient method for α-amino phosphonates via three-component reactions<br />

from aryl azides catalyzed by iron-iodine in the absence of solvent You Huang, Yaqin Yu,<br />

Tanglin Liu, Dexin Feng, Ruyu Chen ····················································································································16<br />

O-6 Reaction mechanism studies of solvolytic displacement of chloride from phosphorus Dennis N. Kevill,<br />

Han Joong Koh, Suk Jin Kang ······························································································································17<br />

O-7 The new tipe of calix[4]resorcines bearing phosphonates and phosphonium fragments at the<br />

lower rim E.L. Gavrilova, A.A. Naumova, N.I. Shatalova, A.R. Burilov, M.A. Pudovik, E.A. Krasil’nikova,<br />

A.I. Konovalov·····················································································································································18<br />

O-8 Microbial resolution of racemic phosphonates derivatives with one or two stereogenic centres<br />

Ewa Żymańczyk-Duda, Małgorzata Brzezińska-Rodak, Magdalena Klimek-Ochab, Renata Kuriata, Marta Miszuk,<br />

Paweł Kafarski, Barbara Lejczak··························································································································19<br />

I


O-9 Advantages of organophosphorus synthesis in ionic liquids:“Green” approaches to useful<br />

phosphorus substituted building-blocks I. L. Odinets, E.V. Matveeva, E. V.Sharova, O. I.Artyushin,<br />

V.A.Kozlov, D.V. Vorob’eva, S. N. Osipov, T. A. Mastryukova, G.-V. Röschenthaler ················································20<br />

O-10 Synthesis and chemical properties of benzo[e]-1,2-oxaphosphorinine derivatives – P-analogues of<br />

coumarines E.N.Varaksina, D.A.Tatarinov, K.Yu.Cherkin, V.F.Мironov, A.I.Konovalov ··································21<br />

O-11 The reaction of 1,2-naphthoquinones with some P(III) derivatives – a versatile sythetic<br />

approach to potentially useful naphthoquinones and dihydroxynaphthale-nes containing<br />

phosphorus–carbon bond A.V.Bogdanov, V.F.Мironov, N.R.Khasiyatullina, D.B.Krivolapov ···················22<br />

O-12 Ylides and carbenes. The first carbene catalyzed reaction Shevchenko I.V., Rogalyov A.E.,<br />

Poliakov D.V., Röschenthaler G.-V. ······················································································································23<br />

O-13 Synthesis, optical properties and reactivities of a dibenzophosphaborin and its derivatives<br />

Junji Kobayashi, Tomohiro Agou, and Takayuki Kawashima··················································································24<br />

O-14 Phosphinous acid-boranes:an emerging class of organophosphorus reagent K. Michal Pietrusiewicz,<br />

Marek Stankevič ··················································································································································25<br />

O-15 Synthesis of new functionalized phosphorus substituted derivatives of 2,6-di-tert-butyl-4methylphenol<br />

A.A. Prishchenko, M.V. Livantsov, O.P. Novikova, L.I. Livantsova, E.R. Milaeva·························26<br />

O-16 Microbial desymmetrization of racemic mixture of (1-hydroxyphenylmethyl)phenylphosphinate<br />

ethyl ester via oxidation of one optical isomer Magdalena Klimek-Ochab, Ewa Żymańczyk-Duda,<br />

Małgorzata Brzezińska-Rodak, Paweł Kafarski and Barbara Lejczak······································································27<br />

O-18 Guanidinophosphazenes: design and synthesis of a novel family of uncharged organic super<br />

bases Alexander A. Kolomeitsev, Ilmar A. Koppel, Toomas Rodima, Jan Barten, Enno Lork,<br />

Gerd-Volker Röschenthaler, Ivari Kaljurand, Agnes Kütt, Ivar Koppel, Vahur Mäemets, Ivo Leito····························28<br />

O-19 Preparation and characterization of novel room temperature ionic liquids based on quaternary<br />

phosphonium cations on quaternary phosphonium cations Katsuhiko Tsunashima, Masashi Sugiya ···29<br />

O-20 Investigating the michaelis-becker reaction in phosphonium and imidazolium ionic liquids<br />

Laura K. Byington Congiardo, Ahn Vu, Erika Shaffer, W. David Stegbauer, Robert Hartsock, D. Andrew Knight···30<br />

O-21 A new useful synthetic pathway to trifluoromethyl phosphates O. A. Shyshkov, A.A. Kolomeitsev<br />

G.-V. Röschenthaler·············································································································································31<br />

O-22 New methods, and strategies for asymmetric synthesis of organophosphorus compounds<br />

Kolodiazhnyi O.I., Guliayko, I.V, Gryshkun E.V., Kolodiazhna, A.O., Nesterov V.V., Kachkovskyi G. O. ···················32<br />

O-23 Imidoyl chlorides: new promising building blocks in synthesis of α-aminophosphoryl compounds<br />

P. P. Onys’ko, Yu. V. Rassukana, A. A. Sinitsa·······································································································33<br />

O-24 Kinetics and mechanism of the oxidation of lower oxyacids of phosphorus by morpholinium<br />

chlorochromate Pradeep K. Sharma············································································································34<br />

O-25 Functionalized phosphoryl compounds: synthesis, extraction, transport and ionophore<br />

properties R.A. Cherkasov, A.R. Garifzjanov, N.S. Krasnova, A.S. Talan, L.A. Burnaeva, G.A. Ivkova·······35<br />

O-26 Investigating the synthetic potential of aminoalkylferrocenyldichlorophosphanes S. Tschirschwitz,<br />

P. Lönnecke, E. Hey-Hawkins·······························································································································36<br />

O-27 Synthesis and redox properties of crowded diphosphines: approaches toward<br />

phosphorus-phosphorus inter-valence charge transfer systems Shigeru Sasaki, Masatoshi Izawa,<br />

Kohji Sasaki, Kiyotoshi Kato, Midori Murakami, Fumiki Murakami, Masaaki Yoshifuji, Noboru Morita ···················37<br />

II


O-28 The organophosphorus sulfenyl bromides as versatile reagents for cysteine derivatives<br />

functionalization by unsymmetrical disulfide bond formation Mateusz Szymelfejnik,<br />

Sebastian Demkowicz, Dariusz Witt, and Janusz Rachon························································································38<br />

O-29 Ambident electrophilicity of 5-membered ring phosphate triesters Nissan Ashkenazi,<br />

Yoffi Segall, Yishai Karton, Sanjio S. Zade, Michael Bendikov················································································39<br />

O-30 A new approach to the synthesis of phosphoranes on the basis of the reaction of<br />

benzo[d]-1,3,2-dioxaphospholes, having β- or γ-unsaturated group in substituent, with<br />

compounds containing multiple bonds V.F.Mironov, L.M.Burnaeva, L.M.Abdrakhmanova,<br />

M.N.Dimukhametov, Yu.yu. Kotorova, I.V.Konovalova···························································································40<br />

O-31 Diastereoselective synthesis of enantiopure α-aminophosphonic acids derivatives Vladimir A. Alfonsov ·······41<br />

O-32 Phosphorylation of imino analogs of α-halocarbonyl compounds Yuliya V. Rassukana,<br />

Petro P. Onys’ko, Anatoly D. Sinitsa·····················································································································42<br />

O-105 Highly stereoselective and stereospecific epoxidation of 2-phospholenes and N-glycosides of<br />

phospha sugars and their bioassays Mitsuji Yamashita, Taishi Niimi, Michio Fujie,<br />

Valluru Krishna Reddy, Hirono Totsuka, Buchammagari Haritha, Maddali Kasthuraiah Reddy, Satoki Nakamura,<br />

Kazuhide Asai, Takuya Suyama, Gang Yu, Masaki Takahashi, and Tatsuo Oshikawa ···············································43<br />

O-106 Chiral P-heterocycles: efficient method for the optical resolution of 3-methyl-3-phospholene<br />

1-oxides Tibor Novák, József Schindler, Viktória Ujj, János Deme, Ádám Bódis, Elemér Fogassy,<br />

György Keglevich ················································································································································44<br />

O-107 Air-stable chiral primary phosphines L. J. Higham, R. M. Hiney , D. G. Gilheany ································45<br />

P-1 α-iminotrifluoroethyl phosphonate – the first representative of C-phosphorylated N-H imines<br />

A. D. Sinitsa, M. V. Kolotylo, Yu. V. Rassukana, V.V. Pirozhenko, P. P. Onys’ko,·················································46<br />

P-2 Synthesis of calix[4]resorcins, containing phosphoryl fragments on the bottom rim of the<br />

molecule A. R. Burilov, I. R. Kniazeva, Yu. M. Sadykova, M. A. Pudovik, W.D. Habicher, I. Baier,<br />

A. I. Konovalov····················································································································································47<br />

P-4 Interaction of 3-alkyl-2-alkoxy-1,3,2-oxazaphosphinanes with alkylchloroformates A.E. Shipov,<br />

G.K. Genkina, P.V. Petrovskii, T.A. Mastryukova···································································································48<br />

P-6 2,2,2-tribromonaphtho[2,3-d]-1,3,2-dioxaphosphole: obtaining and reaction with phenylacetylene<br />

A.V.Bogdanov, V.F.Мironov, B.I.Buzykin, A.B.Dobrynin, D.B.Krivolapov, А.I.Konovalov········································49<br />

P-7 Synthesis, characterization and applications of novel iminophosphinites Jake Yorke,<br />

Sarah K. D. Beaton, Aibing Xia ····························································································································50<br />

P-9 Synthesis and reactions of phosphaisocoumarins Ai-Yun Peng, Bo Wang, Xun Yang···························51<br />

P-14 Nucleophilic phosphine-catalyzed [3+2] cycloaddition of allenes with N-(thio)phosphoryl imines:<br />

facile synthesis of substituted 3-pyrrolines Bo Zhang, Zhengjie He························································52<br />

P-17 Diselenophosphates: synthesis, reaction with electrophiles, and P-Se bond cleavage Chen-Wei Liu ···53<br />

P-23 Tricycles synthesized by the reaction of PCl5 with open-chained molecules Ferdinand Belaj·······54<br />

P-24 Monodentate spiro phosphonites: highly efficient ligands for asymmetric hydrogenation of<br />

non-acylated enamines Guo-Hua Hou, Shou-Fei Zhu, Jian-Hua Xie, Qi-Lin Zhou···································55<br />

P-25 Microwave-assisted synthesis in organophosphorus chemistry György Keglevich, Melinda Sipos,<br />

Anna Szekrényi, Eszter Dudás, Daniella Takács and Emília Hohmann ·································································56<br />

P-30 Synthesis and properties of pentacoordinate phosphorus compounds containing a pentacoodinate<br />

silicon atom Hideaki Miyake, Naokazu Kano, and Takayuki Kawashima·······················································57<br />

III


P-31 Synthesis of a novel apical–equatorial–equatorial type tridentate ligand and construction of<br />

pentacoordinate phosphorus compounds Hideaki Yamamichi, Shiro Matsukawa, Yohsuke Yamamoto···58<br />

P-34 The catalytic ring-closure reaction in the presence of phosphorous oxychloride Hui Wang,<br />

Renzhong Qiao····················································································································································59<br />

P-35 Dithiophosphorylation of cyclic monoterpenes Il’yas S. Nizamov , Artiem V. Sofronov,<br />

Rafael A. Cherkasov, Liliya E. Nikitina ·················································································································60<br />

P-36 Backgrounds for the technology for the preparation of organophosphorous precursors<br />

Magdeev I.M., Budnikova Yu.H., Muslinkin A.A., Nabiullin V.N., Berdnik I.V. ·························································61<br />

P-37 Synthesis of 1,2-azaphosphetidines with amino acid fragment Inga M.Aladzheva,<br />

Olga V.Bykhovskaya, Pavel V.Petrovskii, Tatyana A.Mastryukova ··········································································62<br />

P-38 Asymmetric syntheses of new phosphonotaxoids Irina V. Guliaiko, Oleg I. Kolodiazhnyi························63<br />

P-42 X-ray crystal structure of hydrolysates of triphenylphosphine dichloride Jian Chen Zhang,<br />

Wen Ping Shi, Jun Xu, Yu Fen Zhao······················································································································64<br />

P-46 The synthesis of 7,11,18,21-tetraoxa-1,3,5,13,15,17-hexaaza-2,4,6λ5,12λ5, 14,16-hexaphospha<br />

trispiro[5.2.2.5.2.2]heneicosa-1,3,5,12,14,16-hexaene Ju Zhiyu, Zou Ruyi, Yin Zhengming, Ye Yong,<br />

Liao Xincheng, Zhao Yufen···································································································································66<br />

P-47 P-nitrophenoxycarbonylphosphonate diesters-potent reagents for the synthesis of hindered<br />

carbamoylphosphonates Julia Frant, Irena Beylis, Naama Mussai, Reuven Reich and Eli Breuer··················67<br />

P-48 Phosphorylation of dihydroxy anthraquinones by Atherton-Todd reaction Jun-Feng Zhao,<br />

Xian-Li Wu, Si-Xing Zhang, Xin-Cheng Liao, Shu-Xia Cao, Yan-Chun Guo, Yu-Fen Zhao ······································68<br />

P-49 Decomposition reaction of tetra-hydroxymethylphosphonium chloride Kaiqi Shi, Ya Li,<br />

Lan Jiang, Qiaoyun Ye, Shuangxi Shao············································································································69<br />

P-50 Phosphonilation of 1,3-diaryl-2,3-dihydro-1H-naphth[1,2-е][1,3]oxazine by dialkyl and diaryl<br />

phosphonates Kirill E. Metlushka, Vladimir A. Alfonsov, Charles E. McKenna, Boris A. Kashemirov,<br />

Olga N. Kataeva, Viktor F. Zheltukhin, Dilyara N. Sadkova, Alexey B. Dobrynin·····················································70<br />

P-51 Dimenthyl (2R)-2-hydroxy-3-chloropropylphosphonate – accessible chiron for the asymmetric<br />

synthesis of hydroxyphosphonates Kolodiazhnyi O.I., Nesterov V.V. ·····················································71<br />

P-55 Synthesis n-phosphorylated chrysin-7-yl amino acid esters Li Wenfeng, Chen Xiaolan, Yuan Jinwei,<br />

Qu Lingbo, Zhao Yufen ········································································································································72<br />

P-57 Applications of Lawasson’s reagent in synthesis of biologically active phopshorus-heterocycles<br />

Liang-Nian He, Jin-Quan Wang, Ya Du, Fei Cai ···································································································73<br />

P-62 Phosphorous acid nucleophilic addition at carbonyl groups Li-Ping Zhanga , LingBo Qu,<br />

Yu-Fen Zhao ·······················································································································································74<br />

P-64 The synthesis of tetracyclic phosphorate M.A.Pudovik, L.K.Kibardina, S.A.Terent’eva, O.N.Kataeva,<br />

G.A.Chmutova, V.A.Alfonsov································································································································75<br />

P-65 Abnormal reactivity of arylaminomethylenebisphosphonates. aminomethylation on benzene ring<br />

in base medium M.O.Lozinsky, A.L.Chuiko ·······································································································76<br />

P-69 The preparation of nitrogen-containing heteroaryoylphosphonates and their reactions with<br />

trialkyl phosphites D. Vaughan Griffiths, Michael C. Salt and Helen V. Taylor············································77<br />

P-71 Reaction of racemic and non-racemic silylated (1-phenyl)ethylamine with O-phenylchloromethyl<br />

isothiocyanatothiophosphonate. Synthesis of optically active 1,3,4-thiazaphosphole Ludmila K.<br />

Kibardina, Mikhail A. Pudovik, Natalia A. Khailova, Vladimir A. Alfonsov, Olga N. Kataeva···································78<br />

IV


P-73 Study of reaction of acetylenic phosphonates with carbanionic nucleophiles N.G. Didkovskii,<br />

A.I Petryanina, A.V. Dogadina, N.I. Svintsitskaya and B.I. Ionin·············································································79<br />

P-75 The phospho-aldol reaction and complexes of aluminium containing salcyan and related ligands<br />

Nichola E. Cosgrove, Terence P. Kee····················································································································80<br />

P-78 Synthesis of 2-substitued-pyrano[2,3-d]pyrimidin-4(3H)-one derivatives using iminophosphorane<br />

Qing-Yun Ren, Hong-Wu He·································································································································81<br />

P-81 Synthesis of solanesyl phosphonate Qu Lingbo, Shi Xiaona, Chen Xiaolan ················································82<br />

P-86 Synthesys and structural peculiarities of phosphorus pentachloride complexes with<br />

4-dimethylaminopyridine and N-methylimidazole S.E.Pipko, L.V.Bezgubenko, A.D.Sinitsa,<br />

E.G.Kapustin, E.B.Rusanov, M.I.Povolotskii··········································································································83<br />

P-87 Chemistry of fulvene-type P-heterocyclic compounds Shigekazu Ito, Hideaki Miyake, Satoshi<br />

Sekiguchi, Matthias Freytag, Masaaki Yoshifuji·····································································································84<br />

P-89 Synthesis and complexations of a novel stable carbene bearing a phosphorus ylide Shin-ya Nakafuji,<br />

Junji Kobayashi, and Takayuki Kawashima···········································································································85<br />

P-91 An efficient synthesis of α-(substituted phenoxy acetoxy)alkyl phosphinates sodium salts Tao Wang,<br />

Hong Wu He························································································································································86<br />

P-93 Phosphorylacetic acid thioamides as key substancesfor phosphorylated heterocycles V.A. Kozlov,<br />

I. L. Odinets, D.V. Aleksanyan, P.V. Petrovskii, T. A. Mastryukova ·········································································87<br />

P-94 The formation of ion-radical salts in the reaction of fullerene C60 with Phosphorus (III) amides<br />

I.P.Romanova, V.F.Mironov, G.G.Yusupova, О.А.Larionova, V.I.Morozov, O.G.Sinyashin·······································88<br />

P-95 New method for the asymmetric reduction of ketophosphonates Vitaly V. Nesterov,<br />

Oleg I. Kolodiazhnyi············································································································································89<br />

P-96 Diastereoselective synthesis of enantiopure cyclic α- aminophosphonic acids Vladimir A. Alfonsov,<br />

Charles E. McKenna, Еvgenia V. Bayandina, Boris Kashemirov, Liliya N. Yarmieva, Olga N.Kataeva, Lyudmila<br />

N.Punegova·························································································································································90<br />

P-100 Studies on the synthesis and separation of isoleucine oligopeptides assisted by phosphorus<br />

oxychloride Wei-Na CAO,Li-Na TANG,Li MA,Kui LU,Yu-Fen ZHAO················································91<br />

P-101 Synthesis of bis(phosphonates) pyrrolidines derivatives Feng Gao, Ting-ting Wang,<br />

Ying-jun Song, Wen-hu Wang ·······························································································································92<br />

P-104 Synthesis of novel bicycli caged phosphate derivatives Wen-Yan MO, Hong-Wu HE···························93<br />

P-106 The synthesis and reactions of alkyl 2,3,3-tris(dialkoxyphosphoryl)propionates and alkyl<br />

2,3,3-tris(dialkoxyphosphoryl)acrylates Yuen-Ki Cheong, Philip Duncanson, D. Vaughan Griffiths,<br />

Xiao Han ····························································································································································94<br />

P-112 Reactions between N-(thio)phosphoryl imines and diethylzinc Xinpeng Ma, Xinyuan Xu,<br />

Chungui Wang, Guofeng Zhao, Zhenghong Zhou, Chuchi Tang ··············································································95<br />

P-113 Aza-henry reaction between N-thiophosphoryl imines and nitromethane Xinpeng Ma,<br />

Xinyuan Xu, Chungui Wang, Guofeng Zhao, Zhenghong Zhou, Chuchi Tang ···························································96<br />

P-114 Organocatalytic asymmetric synthesis of α- hydroxy phosphonates Xinyong Li, Weiwei Jin,<br />

Caibao Chen, Wen-Jing Xiao································································································································97<br />

P-115 The aza-morita-baylis-hillman reaction of N-thiophosphoryl imines catalyzed by<br />

1,3,5-triaza-7-phosphaadmantane Xinyuan Xu, Chungui Wang, Zhenghong Zhou, Chuchi Tang ···············98<br />

V


P-118 Polarity and conformations of 1,2,4,5-tetra(tert-butylphospha)cyclohexanes in solution Ya.A. Vereshchagina,<br />

E.A. Ishmaeva, D.V. Chachkov, A.A. Gazizova, Z.S. Novikova ················································································99<br />

P-119 Novel ionic phosphine ligands: their synthesis and application in suzuki coupling reaction in<br />

ionic liquid Yan Chen,Guang-Ao Yu,Yong Ren,Xiang-Gao Meng,Jin-Tao Guan,Sheng Hua Liu ······100<br />

P-120 Synthesis and characterization of novel bile acids derived H-phosphonates conjugates Yan Li,<br />

Yong Ju, Yufen Zhao ··········································································································································101<br />

P-121 Study of the reaction between N- (O, O-diisopropyl) phosphoryl amino acids and the mixed<br />

nucleotides Yanchun Guo, Shuxia Cao, Yali Xie, Xianli Wu, Xincheng Liao, Yufen Zhao ······························102<br />

P-127 Organocatalytic friedel-crafts alkylations of indoles with dialkyl Ying-Cen Guo, Dong-Pin Li,<br />

Wen-Jing Xiao···················································································································································103<br />

P-129 Synthesis of L-phenylalanine dipeptide mediated by phosphorus oxychloride and separation by<br />

RPLC Ying-yan Yao,Kui-Lu··················································································································104<br />

P-130 Synthesis of some new 2-(bis-β-chloroethylamin) 7-methoxyl-3-substitutedphenyl-4-methyl-1, 3,<br />

2-benzoxazaphosphorin 2-oxides Yuan Jinwei, Chen Xiaolan, Qu Lingbo, Yufen Zhao,·························106<br />

P-132 The reaction of pyrrole-2,5-diones and their halogenated derivatives with trivalent phosphorus<br />

compounds Yuen-Ki Cheong, Philip Duncanson, D. Vaughan Griffiths························································107<br />

P-134 Synthesis of diphenyl α-(O-phenyl bis(2-chloroethyl)amidophosphorylamino)phosphonates<br />

Zhanwei Cui, Zhiwei Miao, Jianfeng Zhang, Ruyu Chen·······················································································108<br />

P-138 Modified alkaloids as organocatalysts for the asymmetric synthesis of organophosphorus<br />

compounds A.O. Kolodiazhnaya, V.P.Kukhar, O.I. Kolodiazhnyi······························································110<br />

P-144 Reactions of aminoacetylenephosphonates with N-nucleophilic reagents Anastasia V. Aleksandrova,<br />

Alla V. Dogadina, and Boris I. Ionin···················································································································111<br />

P-154 Template-directed synthesis of phosphorous containing macrocycles:structure<br />

P-159<br />

/reactivity-relationships S. Bozkurt, S. Ekici, D. Jaspers, M. Nieger, E. Niecke·······································112<br />

Synthesis and structure of thiophene, selenophene, and related compounds carrying four<br />

phosphoryl groups Shigeru Sasaki, Kazutaka Adachi, Masaaki Yoshifuji, Noboru Morita···························113<br />

P-164 Synthesis of new β-amino-derivatives of alkenylphosphonates R.A.Cherkasov, N.G.Khusainova,<br />

O.A.Mostovaya, E.A.Berdnikov, S.M.Rybakov······································································································114<br />

P-171 Green synthesis of phosphoramides by trimetaphosphate(P3m) NI, F.; Fu, C.; Sun, S. T.; Zhao, Y. F··116<br />

P-175 Phosphinoglycines and phosphinoglycolates J. Heinicke, J. Lach, N. Peulecke, P. G. Jones, I. Dix······117<br />

P-178 Stereospecific preparation of P-chirogenic phosphide boranes from the corresponding<br />

chlorophosphines H. Lauréano, G. Morata, M.L. Auclair, J.C. Henry, P. Richard, C. Darcel, S. Jugé ·······118<br />

P-179 Recent progresses on P-chirogenic phosphine synthesis M. L. Auclair, G. Morata, M. Gomès,<br />

S. Loutsenko, J. C. Henry, P. Richard, C. Darcel, S. Jugé·············································································119<br />

P-186 Synthesis of hexaisopropyltriamidephosphite: Myth or reality? Anatoliy P. Marchenko,<br />

Georgyi N. Koidan, Yurii M. Pustovit , Mark I. Povolotskii, Aleksandr N. Chernega, Aleksandr M.Pinchuk·············120<br />

P-187 A convenient method for the synthesis of cyclophosphamide analogues Zhang Liuji,<br />

Qu Lingbo, Zhang Baojun, Zhao Yufen················································································································121<br />

P-188 Convenient synthesis of α-hydroxyphosphinate Tao Ji, Guo Tang , Hua Fang, Yufen Zhao ···············122<br />

P-190 Synthesis of N-(diisopropyloxyphosphoryl)dipeptides in a one-pot method Kan Lin,<br />

Xiantong Huang, Guo Tang, Yufen Zhao ·············································································································123<br />

VI


P-191 Organicphosphorus compounds as small molecular catalysts in the direct asymmetric aldol<br />

reaction Qin Tao, Guo Tang, Yu-Fen Zhao·······························································································124<br />

Symposium 2<br />

PHOSPHORUS COORDINATION COMPOUNDS AND THEIR USE AS CATALYSTS<br />

KL-5 Design and synthsis of spiro phosphorus ligands for asymmetric catalysis Qi-Lin Zhou················125<br />

KL-6 Synthesis and application of new p-chiral phosphine ligands Tsuneo Imamoto ······························126<br />

KL-15 My excursion to the chemistry of stable diradicals: diphosphetanediyles Edgar Niecke ················127<br />

KL-17 Innovative chiral phosphorines for hydrogenation and hydroformylation Xumu Zhang················128<br />

KL-30 Phosphorus ligands design for coordination chemistry and catalysis P.L. Floch····························129<br />

IL-8 Ambiphilic phosphine/borane derivatives: synthesis and coordination properties S. Bontemps,<br />

G. Bouhadir, K. Miqueu, L. Maron, D. Bourissou ································································································130<br />

IL-11 Synthesis and asymmetric catalysis of new chiral tetradentate aminophosphine ligands<br />

Yan-Yun Li, Zhen-Rong Dong, Wei-Yi Shen, Gui Chen, Xue-Qing Zhang, Hui Zhang , Jingxing Gao·······················131<br />

IL-13 Phosphorus chemistry & sustainable development Pascal Metivier ··················································133<br />

IL-14 Phosphine and phosphine-mimic complexes in catalysis T. S. Andy Hor·······································134<br />

IL-40 Synthesis and chemistry of metallabenzyne Tingbin Wen, Guochen Jia···············································135<br />

O-35 Synthesis of strained-ring phosphorus heterocycles from phosphatriafulvenes and<br />

phosphaheptafulvenes Heydt, H. Bergsträber, U. Hofmann, M.A. Werner, S. Regitz, M·························136<br />

O-36 Highly functionalised phosphorus ligands: synthesis and diverse coordination chemistry Martin B. Smith··137<br />

O-37 P* chiral aminophosphine complexes of Copper (I): Synthesis and X-ray structural characterization<br />

T. Arun Luiz , Babu Varghese, M. N. Sudheendra Rao··························································································138<br />

O-38 Phosphorus trivalent reagents: efficient tools for multicomponent and organocatalytic reactions<br />

David Virieux, Anne Françoise Guillouzic, Henri-Jean Cristau, Jean-Luc Pirat ····················································139<br />

O-39 Bisdithiophosphonic acids in metal complex formation reactions Il’yas S. Nizamov,<br />

Yevgeniy M. Martiyanov, Il’nar D. Nizamov, Alfiya N. Gataulina, Rafael A. Cherkasov ·········································140<br />

O-40 Synthesis and biological evaluation of a highly reaction Zn(II) mononuclear complex for<br />

phosphodiester cleavage Chao Li, Ren-Zhong Qiao, Yu-Fen Zhao·························································141<br />

O-41 Complexes of crown-containing N-phosphorylthioureas with Ni(II) cation F. D. Sokolov,<br />

S. V. Baranov, N. G. Zabirov, R. A. Cherkasov·····································································································142<br />

O-42 Novel heterocyclic p-ligands: synthesis and application in Pt(II) complexes György Keglevich,<br />

Andrea Kerényi, Melinda Sipos, Annamária Balassa, Beatrix Mayer, Tamás Körtvélyesi·····································143<br />

O-43 DoM chemistry of phosphinic amides: synthesis of ligands and their application in robust high<br />

performance catalysts D. Bradley G. Williams······················································································144<br />

O-109 Design, synthesis, and application of phosphaalkenes to unique palladium and gold catalysts<br />

Shigekazu Ito, Matthias Freytag, Hongze Liang, Katsunori Nishide, Masaaki Yoshifuji ··········································145<br />

P-18 Novel 36- and 38-membered P,N-containing cyclophanes with large hydrophobic cavities<br />

D.V.Kulikov, A.S.Balueva, A.A.Karasik, A.V.Kozlov, Sh.K.Latypov, O.N.Kataeva, P.Lönnecke, E.Hey-Hawkins,<br />

O.G.Sinyashin ···················································································································································146<br />

P-20 Phosphorus functionalised carbenes: synthesis and coordination properties D.Morvan, J.J.Yaouanc,<br />

P.A.Jaffrès, J.F.Capon, P.Schollhammer, J.Talarmin, F.Gloaguen.·······································································148<br />

VII


P-22 Extraction properties of 1,10-da-18-crown-6, modified by exocyclyc chelating groups Felix D. Sokolov,<br />

Maria G. Babashkina, Damir A. Safin, Nail G. Zabirov, Rafael A. Cherkasov ·····················································149<br />

P-26 Chiral spiro monophosphites for Rh-catalyzed asymmetric addition of arylboronic acids to<br />

aldehydes, ketones and imines Hai-Feng Duan, Shou-Fei Zhu, Yi-Xia Jia, Qi-Lin Zhou···························150<br />

P-59 Synthesis of O,O-dialkyl-2-oxo-2-(4-(selenomor pholinosulfonyl)phenylamino)ethylphosphonate<br />

Fang Wang, Liming Hu, Xiaopeng Li, Xuemei Xu························································································151<br />

P-105 Synthesis of chiral spirobitetraline phosphoramidite ligands Hai-Feng Duan, Shou-Fei Zhu,<br />

Yi-Xia Jia, Qi-Lin Zhou······································································································································152<br />

P-161 Synthesis and mechanism of phosphaisoquinolin-1-ones by Pd(II)-catalyzed cyclization of<br />

O-(1-alkynyl)phenylphosphonamide monoesters Wei Tang, Yi-Xiang Ding········································153<br />

P-174 Novel pyrido- and benzo-annulated 1,3-azaphospholes J. Heinicke, M. S. S. Adam, B. R. Aluri,<br />

P.G. Jones·························································································································································155<br />

P-177 Designing phosphorus ligands at the P-center for asymmetric reactions catalyzed by Rh or Pd<br />

complexes C. Darcel, D. Moulin, C. Bauduin, M. Gomès, J.C. Henry, M. Lagrelette, P. Richard·················156<br />

P-196 N-heterocyclic carbene-Copper complex-catalyzed hydrophosphinylation of alkynes Mingyu Niu, Hua<br />

Fu, Yuyang Jiang, Yufen Zhao ····························································································································157<br />

Symposium 3<br />

STRUCTURE AND REACTIVITY OF INORGANIC PHOSPHORUS COMPOUNDS<br />

KL-11 Biologically relevant phosphoranes: structural characterization of glucofuranose and<br />

xylofuranose phosphoranes as applied to phosphoryl transfer enzymes Robert Holmes,<br />

A. Chandrasekaran, Natalya V. Timosheva··········································································································159<br />

KL-19 Studies on stable 1,3-diphosphacyclobutane-2,4-diyls Masaaki Yoshifuji, Anthony J. Arduengo, III and<br />

Shigekazu Ito·····················································································································································161<br />

IL-31 Organophosphorus Pi-conjugated materials for optoelectronic applications Muriel Hissler,<br />

Christophe Lescop, Régis Réau···························································································································162<br />

IL-32 Recent advances in the chemistry of P,N-heterocycles Streubel, R., Özbolat, A., Helten, H., Perez,<br />

J. M., Nieger M.·················································································································································163<br />

IL-50 Radiation-induced synthesis of polymers on the basis of elemental phosphorus N.P. Tarasova ····164<br />

O-72 Influence of media components on processes of radiation-indused polymerization of white<br />

phosphorus I.M. Artemkina, A.S. Vilesov, Y.V. Smetannikov, N.P. Tarasova············································165<br />

O-73 An effective methodology of P,N-macrocycles design A.A. Karasik, A.S. Baluev, R.N. Naumov,<br />

D.V.Kulikov, Yu.S.Spiridonova, O.G.Sinyashin, E. Hey-Hawkins ··········································································166<br />

O-74 The mechanism of the reaction of alkali metal phenoxides with hexahalocyclotriphosphazenes<br />

Christopher W. Allen, Michael Calichman, Amy Freund·······················································································167<br />

O-75 Strained P2C and P2C2 cyclic cations from phosphaalkenes Derek P. Gates ································168<br />

O-76 New reagents for halogenation of phosphorus Rikard Wärme, Lars Juhlin··········································169<br />

O-79 Bimetallic activation of white phosphorus Dmitry Yakhvarov, Maurizio Peruzzini, Maria Caporali,<br />

Pierluigi Barbaro, Luca Gonsalvi, Stefano Midollini, Annabella Orlandini, Fabrizio Zanobini,Yulia Ganushevich,<br />

Oleg Sinyashin ··················································································································································170<br />

VIII


O-80 Environmentally being chemical conversion of CO2 into organic carbonates catalyzed by<br />

phosphinium salts J.S.Tian, C.X.Miao, J.Q.Wang, F.Cai, Y.Du, Y.Zhao, L.N.He ······································171<br />

O-81 Transition metal complexes containing phosphenium and phosphite ligands: formation and<br />

theoretical approach Hiroshi Nakazawa, Katsuhiko Miyoshi, and Keiko Takano·····································172<br />

O-82 The formation of spherical giant molecules and dynamic behaviour of supramolecular assemblies<br />

based on PN ligand complexes Manfred Scheer, L. J. Gregoriades, R. Merkle, B. P. Johnson, F. Dielmann 173<br />

O-84 The chemical properties of alkali metals heptaphosphides V.А.Miluykov, O.G.Sinyashin,<br />

А.V.Kataev, P.Lonnecke, E.Hey-Hawkins············································································································174<br />

P-10 Designing new metallo-organic catalysts for the asymmetric phospho-aldol reaction Alexandra C. Gledhill,<br />

Tracy D. Nixon, Terence P. Kee··························································································································176<br />

P-15 Electrosynthesis of metal phosphides on the basis of white phosphorus Budnikova Yu.H.,<br />

Krasnov S.A., Gryaznova T.V., Tazeev D.I., Sinyashin O.G.··················································································177<br />

P-76 Novel synthetic routes to phosphorus organic compounds on the basis of the elemental<br />

phosphorus (P4) O. G. Sinyashin, E. S. Batyeva, E.V. Platova, E.K. Badeeva, L.I. Kursheva······················178<br />

P-99 Reaction of 2-R-benzo[d]-1,3,2-oxazaphosphorin-6-ones with hexafluoroacetone V.F.Mironov,<br />

Yu.Yu.Borisova, L.M.Burnaeva, A.T.Gubaidullin, I.A.Litvinov, G.A.Ivkova, N.K.Amerkhanova, I.V.Konovalova ······179<br />

P-117 Study on structure and properties of amorphous Ni-Cu-P alloy coatings prepared by electroless<br />

plating Xu Ruidong, Wang Junli,Guo Zhongcheng ························································································180<br />

P-139 Determination of dexamethasone sodium phosphate in medicament by fluorescence probe of<br />

Symposium 4<br />

Tb 3+ -Tiron complex Chaobiao Huanga, Zhenrong Yu, Libin Zhou······························································181<br />

NUCLEOTIDES AND OLIGONUCLEOTIDES-FROM BASIC TO MEDICINAL<br />

APPLICATIONS; BIOLOGICAL ASPECTS OF PHOSPHORUS CHEMISTRY<br />

KL-14 The chemical biology of histidine triad nucleoside binding proteins Carston R. Wagner···················183<br />

KL-16 Studies on modified oligonucleotides Lihe Zhang·················································································184<br />

KL-21 Kinase and kinase inhibitor as anticancer therapeutics Chen Li ························································185<br />

KL-40 Stereochemistry of enzyme-assisted P-N bond cleavage in adenosine 5'-phosphoramidates and<br />

–phosphoramidothioates Agnieszka Krakowiak, Renata Kaczmarek, Janina Baraniak,<br />

Michał Wieczorek, Wojciech J. Stec ····················································································································186<br />

KL-42 Polyphosphates for drug and gene delivery Renxi Zhuo, Shiwen Huang ··········································187<br />

KL-46 Synthesis and biochemical activity of new oligonucleotide analogs Marvin H. Caruthers ················188<br />

IL-41 Study of artificially selected biocatalysts covalently modified by organophosphorus compounds<br />

Alexander G. Gabibov, Andrey V. Reshetnyak, Maria Francesca Armentano, Natalia A. Ponomarenko, Oxana<br />

Durova, Rustam Ziganshin, Marina Serebryakova, Vadim Govorun, Gennady Gololobov, Herbert C. Morse III,<br />

Alain Friboulet, Sudesh P. Makker, Alfonso Tramontano······················································································189<br />

IL-42 Thermosensitive phosphate/thiophosphate protecting groups and the development of thermolytic<br />

oligonucleotide prodrugs Andrzej Grajkowski, Cristina Ausín, Serge L. Beaucage··································190<br />

IL-43 Advancing biomedical research by development of fluorescent oligonucleotide-based assays<br />

Gerald Zon························································································································································192<br />

IL-44 Non watson-crick structure recognition and its applications Zhen Xi··············································193<br />

IX


IL-45 Probing mechanisms of phosphotransferases with thio effects Karol Bruzik ···································194<br />

IL-47 RNA interference: the new paradigm of drug discovery based on nature's phosphorous<br />

chemistry Muthiah Manoharan·················································································································195<br />

IL-49 Synthesis and biological studies of G-quadruplex stabilizers Lige Ren, Jing Huang, Boqiao Fu,<br />

Xiang Zhou ·······················································································································································196<br />

O-96 Perifosine inhibits multiple signaling pathways in glial progenitors and cooperates with<br />

temozolomide to arrest cell proliferation in gliomas in vivo. Alan H. Shih, Hiro Momota,<br />

Edward Nerio, Eric C Holland ···························································································································197<br />

O-97 A low-molecular phosphinic inhibitor of leucine aminopeptidase of potential medical significance<br />

A.Mucha ···························································································································································198<br />

O-98 Mapping of the functional phosphate groups in the catalytic core of deoxyribozyme 10-23<br />

Barbara Nawrot, Kinga Widera, Marzena Wojcik, Beata Rebowska, Wieslawa Goss, Wojciech J. Stec····················199<br />

O-100 The aza-α-aminophosphonate macrocycles as potential supramolcular hosts for metal ions and<br />

biologically important molecules P.Mlynarz, A.Rydzewska, S.Sliwinska, G.Schroeder,P.Kafarski············200<br />

O-101 Studies on the condensation of H-phosphonate monoesters with S-nucleophiles Renata Hiresova ,<br />

Jacek Stawinski ·················································································································································201<br />

O-103 ESI investigation of non –covalent complexes between phosphorylated daidzein and insulin Chen Xiaolan,<br />

Shi Xiaona, Yuan Jinwei, Lu Jiansha, Qu Lingbo, Zhao Yufen ··············································································202<br />

O-104 Synthesis of novel steroidal bioconjugates with azt and phosphorus Peiyuan Jin, Kai Liu, Yong Ju,<br />

Yufen Zhao························································································································································203<br />

P-33 The chemical synthesis of oligonucleotide phosphoramidates HongYu Zhang, ChunJian Duan,<br />

XiangQian Liu, XiaoLan Chen, LingBo Qu, YuFen Zhao······················································································204<br />

P-41 Studies on the self-assembly of L-serine into L-Serine phosphopeptide mediated by phosphorus<br />

oxychloride Jianchen Zhang, Wenping Shi, Jun Xu, Yufen Zhao·········································································205<br />

P-43 Synthesis of N-protected O-hydroxyl-phenyl - α-aminophosphonic monoester Jianfeng Zhang,<br />

Zhiwei Miao, Zhanwei Cui and Ruyu Chen··········································································································206<br />

P-44 A novel mechanism about the cleavge of N-glycosidic bond in electrospray ionization tandem<br />

mass spectra of nucleotide Jihong Liu, Shuxiao Cao, Ruyi Zou, Jiansha Lu, Xincheng Liao, Yufen Zhao····207<br />

P-45 Synthesis of isoprenoid olefin isomers via phosphonium and phosphoryl stabilized carbanions<br />

José S. Yu, David F. Wiemer·······························································································································208<br />

P-52 Investigation on interaction of L-methionine dipeptide with ct-DNA by ultraviolet spectroscopy<br />

method Kui Lu,Rui Li,Li Ma,Yufen Zhao························································································209<br />

P-61 Remineralization effects of honeysuckle flower solution on initial enamel carious lesions in vitro<br />

Linglin Zhang····················································································································································211<br />

P-72 Self-assembly of L-glutamine into oligo-peptides mediated by phosphroric chloride Li Ma,<br />

Ming-xiu Lü, Wei-na Cao, Kui Lu ·······················································································································212<br />

P-74 Synthesis and biological activity of α-hydroxyphosphonates Na Zuo, Hong-Wu He························213<br />

P-85 Bio-relevant derivatives of calixarene phosphonic acids S.Cherenok, A.Vovk, I.Muravyova,<br />

A.Marcinowicz, J.Poznanski, O. Muzychka, V.Kukhar, W.Zielenkiewicz, V.Kalchenko············································214<br />

P-123 Effects of phosphorylation on the conformation of peptide and protein Yan-Mei Li, Yu-Fen Zhao ···215<br />

P-124 Synthesis and purification of L-hydroxyproline oligo-peptides assisted by phosphorus<br />

oxychloride Yan-ting Sun, Ye-zhen Feng, Kui Lu ·······················································································216<br />

X


P-125 Self-assembly of L-glutamine into oligo-peptides mediated by phosphroric chloride Li Ma,<br />

Ming-xiu Lü, Wei-na Cao, Kui Lu ·······················································································································217<br />

P-135 Design and synthesis of 5’-fluorescently labeled nucleosides Zheng Jinyun, Zhang Shufeng, Zhao Yufen········218<br />

P-140 Microwave-assisted syntheses of 2',3'-o-isopropylidene ribonucleoside 5'-monophosphates Z. Wang,<br />

Y.F. Zhao ··························································································································································219<br />

P-141 The correlation between the estimated partition coefficient P and capacity factor K of amino<br />

acids and phosphoryl amino acids Hongxia Liu, Canfang Zhao, Mian Liu, Yuyang Jiang, Yufen Zhao·····221<br />

P-148 Synthesis of α, β-difluoromethylenebisphosphonate analogs of dntps: probes for DNA<br />

polymerase β Thomas G. Upton1, Boris A. Kashemirov, Charles E. McKenna, Myron F. Goodman, G. K.<br />

Surya Prakash, Roman Kultyshev, Vinod K. Batra, David D. Shock, Lars C. Pedersen, William A. Beard, Samuel<br />

H. Wilson··························································································································································222<br />

O-167 Synthesis of bicyclic furopyrimidine deoxynucleosides conjugated with N-diisopropylphosphoryl<br />

amino acids Qiang XiaoA, Xuanye Jin, Weihong Xiao, Yong Ju··································································223<br />

P-168 Effects of chrysin and its tetraethyl bis-phosphoric ester in the cell cycle and P 21/WAF1 proteins of the human<br />

cervical carcinoma cell line hela Ting Zhang, Xiaolan Chen, Lingbo Qu, Manji Sun, Yufen Zhao·················224<br />

P-170 The peptide bond formation reaction with peptides and proteins in aqueous solution by<br />

inducement of N-phosphoryl α-amino acids Jia Ning Wang, Yan Liu, Dacheng He , Yu-Fen Zhao ··········225<br />

P-172 The synthesis and resolution of the opticle active derivatives of N-thiophosphoramidate<br />

derivatives Anfu Hu, Peng Liu , Pengxiang Xu ,Yufen Zhao ········································································227<br />

P-176 New β-ferrocenyl phosphino α-aminoacids as modular electrochemical biomarker for<br />

CSF114(glyco)peptides A. Colson, J. Bayardon, E. Rémond, F. Nuti, R. Meunier-Prest, M. Kubicky,<br />

C. Darcel, A.M. Papini, S. Jugé ··························································································································228<br />

P-183 A study on the nucleoside analogs using electrospray ionization mass spectrometry Liu Ruoyu,<br />

Ye Yong, Cao Shuxia, Liao Xincheng , Zhao Yufen·······························································································229<br />

P-184 Studies on the noncovalent bonding between ATP and α-aminophosphonic acids derivatives by<br />

ESI-MS and molecular modeling Liu Xiaoxia, Fang Hua, Liu Yan, Zhao Yufen······································230<br />

P-185 Peptide bond formation on C-terminal of peptides in organic solution by inducement of<br />

N-phosphoryl amino acid Liu Xiaoxia, Liu Yan, Zhao Yufen ·································································231<br />

P-193 Synthesis of O-nucleoside N-phosphoryl amino acid methyl ester Chen Wei-Zhu, Gao Yu-Xing,<br />

Li Gang, Zhao Yu-Fen ·······································································································································232<br />

P-195 Protein phosphorylation regulates protein local structure and function Jia Hu, Yu-Fen Zhao, Yan-Mei Li··233<br />

P-196 A fast way to synthesis nucleoside H-phosphonate derivatives Jian-Bin Wu, Jian-Nan Guo, Jun Zhang,<br />

Shu-Na Luo, Xiang Gao, Yu-Fen Zhao ················································································································233<br />

Symposium 5<br />

THEORETICAL ASPECTS OF PHOSPHORUS CHEMISTRY ;<br />

31 P NMR IN BIOLOGICAL SYSTEMS<br />

KL-7 Molecular simulation studies of protein kinases Martin J. Field ························································235<br />

KL-8 From powder NMR tensor to 3D molecular structure, promises or illusion - a 31 P and 13 C case<br />

study on cimitidine Steve C.F. Au-yeung··································································································236<br />

IL-15 NMR investigations of phosphate transfer enzymes Jonathan P. Waltho···········································237<br />

XI


IL-16 Photophysics of DNA and light harvesting systems GuanHua Chen ··················································238<br />

IL-18 QM-MM computation of phosphate transfer by enzymes Charles E. Webster····································239<br />

O-44 1.3-diphosphacyclobutane-diyls as building blocks for extended structures Wolfgang W. Schoeller ··240<br />

O-45 Development of a bidentate ligand based on decafluoro-3-phenyl-3-pentanol: steric effect of<br />

pentafluoroethyl groups on the stereomutation of oequatorial C-apical spirophosphoranes<br />

Y.Yamamoto, X.d.Jiang, K.I.Kakuda, S. Matsukawa, H.Yamamichi ·······································································241<br />

O-46 Conformational analysis of 1,4-heterophosphinanes Ya.A. Vereshchagina, E.A. Ishmaeva,<br />

A.A. Gazizova, D.V. Chachkov, M.G. Voronkov ···································································································242<br />

O-47 Stereoselective synthesis and interconversions of 1,9-diaza-3,7,11,15-tetraphospha<br />

cyclohexadecanes R.N.Naumov, A.A.Karasik, A.V.Kozlov, Sh.K.Latypov, D.B.Krivolapov, A.B.Dobrynin,<br />

I.A.Litvinov, O.N.Kataeva, P.Lönnecke, E.Hey-Hawkins, O.G.Sinyashin ·······························································243<br />

O-48 Reactions of phosphonic acids with bases in aqueous solutions Myund, L. A.; Lu, N; Sidorov, Yu. V.,<br />

Burkov, K. A.·····················································································································································244<br />

O-49 Distinct π bonding capability between phosphinidene and phosphonium ion Hisn-Mei Cheng,<br />

San-Yan Chu ·····················································································································································245<br />

O-50 Dimerization and trimerization of phosphaacetylene. a mechanistic study T. Veszprémi, T. Höltzl,<br />

M.T. Nguyen······················································································································································246<br />

O-52 Bond activation processes in N-heterocyclic phosphines D.Gudat, S.Burck, I.Hajdók, F.Lissner,<br />

M.Nieger···························································································································································247<br />

O-53 Determination of optical purity of aminophosphonates by means of NMR spectroscop E.Rudzińska ·········248<br />

O-54 Phosphorus stabilzes and can be stabilized László Nyulászi······························································249<br />

O-94 Mechanism of amino acids mediated oligomerization into peptides by phosphorus trichloride<br />

W.J.Zhao D.X.Zhao K.Lu ···································································································································250<br />

P-103 Mechanism of amino acids mediated oligomerization into peptides by phosphorus trichloride<br />

Wenjie Zhao, Dongxin Zhao, Kui Lu ···················································································································251<br />

P-137 Can four membered heterophosphete structures exist? “Heterogen” hetero antiaromaticity as a<br />

destabilizing effect Zoltán Mucsi, Tamás Körtvélyesi, Tibor Novák, György Keglevich·······························252<br />

P-155 Synthesis and mechanism studies on amide bond by hexamethylphosphoramide(HMPA)<br />

Jianbo Hou, Tongjian Wang, Kan Lin, Guo Tang, Yufen Zhao ··············································································253<br />

P-163 Interaction of 2H-1,2,3-diazaphosphole with diols M.A.Khusainov, R.A.Cherkasov, N.G.Khusainov ,<br />

O.A.Mostovaya, I.F.Gataulina····························································································································254<br />

P-169 Locating the reaction paths of N-(dialkyloxyphosphoryl) amino acids by Nudged Elastic<br />

Band(NEB) method NI, F.; Zeng, Z. P.; Zhao, Y. F ·················································································255<br />

P-194 The formation mechanism of the α-hydroxyphosphonate: a theoretical study Zeng Zhiping,<br />

Fang Hua, Zhao Yufen ·······································································································································257<br />

P-182<br />

31<br />

P NMR assay of the enantiomeric excess by using quinine as chiral solvating agent Liu Ruoyu,<br />

Ye Yong, Chen Xiaolan , Liao Xincheng, Zhao Yufen····························································································258<br />

XII


Symposium 6<br />

PHOSPHORUS COMPOUND AND MEDICINAL CHEMISTRY<br />

KL-9 A correlation of antiresorptive structure activity relationships in nitrogen-containing<br />

bisphosphonates Co-crystalized in farnesyl diphosphate synthase suggests their binding mode<br />

F. H. Ebetino, B. L. Barnett, B. A. Kashemirov, C. Roze, C. E. McKenna, J. Hogan, A. G. Evdokimov, M. E.<br />

Pokross, J. Dunford, Z. Xia, K. Kavanagh, R. G. G. Russell··················································································259<br />

KL-10 Specificity of phosphothreonine recognition by FHA domains Ming-Daw Tsai ·····························260<br />

KL-18 Phosphonate analogs for drug design Charles E. McKenna ·································································261<br />

KL-20 Chiral functionalized phosphonates with biological significance Chengye Yuan······························262<br />

IL-19 Stereocontrolled synthesis of phsophorothioate DNA and RNA by the oxazaphospholidine<br />

approach Takeshi Wada ···························································································································263<br />

IL-20 3',5'-cyclic diguanylic acid and related compounds: synthesis, chemical properties, and biological<br />

activities Yoshihiro Hayakawa ··················································································································265<br />

IL-23 Synthesis of dinucleoside phosphates from c-di-GMP to AZTppppA Zhaoying Zhang, Qianwei Han,<br />

Jianwei Zhao, Barbara L. Gaffney, Roger A. Jones ······························································································266<br />

IL-24 The effects of revisible phosphorylation on peptide and protein local structure Yan-Mei Li,<br />

Yu-Fen Zhao ·····················································································································································267<br />

IL-25 All phosphates are not born chemically equal in RNA Jyoti Chattopadhyaya··································268<br />

IL-26 Design, synthesis and biological activity of α-amino-substituted thiophosphate-phosphonates and<br />

novel naphthoquinone fused phosphorus heterocycles Zhanwei Cui ,Zhiwei Mia, Jianfeng Zhang,<br />

Ruyu Chen ························································································································································269<br />

IL-27 Recent advances in carbamoylphosphonate based matrix metalloproteinase (MMP) inhibitors.<br />

a class of non-toxic in-vivo active drug candidates Eli Breuer ···························································271<br />

IL-48 Novel functionality in organophosphorus chemistry Koop Lammertsma ···········································272<br />

IL-64 Studying the phosphorylation of flavonoids E. E. Nifantyev, M. P. Koroteev, G. Z. Kaziev, T. Wang,<br />

L. H. Cao ··························································································································································273<br />

O-56 Cationic lipids based on phosphonate & phosphoramidate chemistry: synthesis and application<br />

to gene therapy Paul-Alain Jaffrès, Mathieu Mével, Jean-Jacques Yaouanc, Jean-Claude Clément,<br />

Dominique Cartier, Laure Burel, Philippe Giamarchi, Tristan Montier, Pascal Delépine, Pierre Lehn, Claude<br />

Férec, Chantal Pichon, Patrick Midoux ··············································································································274<br />

O-57 Enantiomeric separation of a novel α-anminophosphonates containing benzothiazol moiety by<br />

liquid chromatography using amylose stationary phase Ping Lu, Baoan Song, Deyu Hu,<br />

Song Yang, Linhong Jin, Wei Xue, Yuping Zhang·································································································275<br />

O-58 BEAD-based approaches to develop thioaptamers for diagnostics and therapeutics Xianbin Yang,<br />

Duane Beasley, Bruce A. Luxon, Johnnie Engelhardt, Mark Shumbera, David G. Gorenstein ·································276<br />

O-59 Design and construction of diagnostic chips for cancers Anna Czernicka and Paweł Kafarski············277<br />

O-62 Factors that may predict clinical potencies of nitrogen-containing bisphosphonates; novel<br />

methods dissociate enzyme- and hydroxyapatite-binding affinities Z.Xia,J.Dunford,<br />

M.A.Lawson, J.T.Triffitt, B.L.Barnett, C.Roze, B.Kashemirov, C.E.McKenna, F.H.Ebetino, R.G.G. Russell ·············278<br />

O-63 Novel organophosphorus inhibitors of glutamine synthetase Łukasz Berlicki, Agnieszka Grabowiecka,<br />

Giuseppe Forlani, Paweł Kafarski ······················································································································279<br />

XIII


O-67 Investigations into the oxidative stability of hydroxymethyl- and bis(hydroxymethyl)phosphines<br />

D. V. Griffiths, H. J. Groombridge ······················································································································280<br />

O-69 Organophosphonate inhibitors of cathepsins Paweł Kafarski···························································281<br />

O-70 Synthesis and dental aspects of 1,3-bis(methacrylamido)propane-2-yl dihydroxyphosphate<br />

F. Zeuner, N. Moszner, J. Angermann ·················································································································282<br />

O-71 New efficient synthesis of 2-substituted benzothieno[3,2-d]pyrimidin-4(3H)-ones via an<br />

iminophosphorane Sheng-Zhen Xu, Yang-Gen Hu, Ming-Wu Ding··························································283<br />

P-3 Calixarene methylenebisphosphonic acids: alkaline phosphatase inhibition and docking studies<br />

A. Vovk, V. Kalchenko, O. Muzychka, V. Tanchuk, I. Muravyov, A. Shivanyuk, S. Cherenok, V. Kukhar···················284<br />

P-5 α-(N-benzylamino)benzylphosphonic acids: stereoselectivity of binding to prostatic acid<br />

phosphatase O.I. Kolodiazhnyi, A.I.Vovk, I.M. Mischenko, S.V. Tanchuk, G.A. Kachkovskyi, S.Yu. Sheiko,<br />

V.P. Kukhar ······················································································································································285<br />

P-11 Geranyl and farnesyl bisphosphonates inhibit protein geranylgeranylation through ggpp<br />

depletion Andrew J. Wiemer, Huaxiang Tong, David F. Wiemer, Raymond J. Hohl. ·····································286<br />

P-39 Preparation of new [1,4,2]-oxazaphosphinanes: potentially antidepressive agent David Virieux,<br />

Jean-Noël Volle, Jean-Luc Pirat ·························································································································287<br />

P-40 Antitumor effect of betaine and its impact on the phosphorylation process of rats bearing S180<br />

Ji Yu-Bin, Zhang Yu-Jin ·····································································································································288<br />

P-54 Synthesis and seperation of L-trytophan oligo-peptides assisted by phosphorus oxychloride<br />

Li Ma, Hai-ping Ren, Kui Lu,Yu-fen Zhao ···········································································································289<br />

P-66 Thioureido derivatives of methylenebisphosphonic acid as potential inhibitors of alkaline<br />

phosphatases M. Lozynsky, A. Vovk, A. Chuiko, L. Kononets, V. Tanchuk, I. Muravyova, V. Kukhar·············290<br />

P-67 Phosphoryl substituted 3,5-bis(arylidene)-4-piperidones posessing high antitumor- activity M.V. Makarov,<br />

I.L. Odinets, O.I. Artyushin,E.Yu. Rybalkina, K.A. Lyssenko, T.V. Timofeeva, M.Yu. Antipina ·································291<br />

P-77 New polyamines phosphoramidate vectors for gene therapy Mathieu Mével, François Lamarche,<br />

Jean-claude Clément, Jean-jacques Yaouanc, Laure Burel, Philippe Giamarchi, Tristan Montier, Pascal Delépine,<br />

Pierre Lehn, Paul-Alain Jaffrès, Claude Férec.····································································································292<br />

P-79 Synthesis and drug release behavior of unsaturated polyphosphoester Qiu Jin-Jun, Bao Rui,<br />

Liu Cheng-Mei ··················································································································································293<br />

P-80 In vitro degradation properties of unsaturated polyphosphoester β-tricalcium phosphate<br />

composites Qiu Jin-Jun, Bao Rui, Liu Cheng-Mei ······················································································294<br />

P-82 The synthesis, acid-basic and membrane-transport properties of the phosphorylated amines<br />

Rafael A. Cherkasov, Airat R.Garifzjanov, Maxim V. Khakimov, Alexey S. Talan, Gul’nara A. Ivkova·····················295<br />

P-102 Identification of self-assembly products of valine mediated by phosphorus trichloride by ESI<br />

mass spcetrometry Wenjie Zhao, Li Ma, Kui Lu, Yufen Zhao ····································································296<br />

P-108 Discovery of alkenylphosphorus compounds as a new class of cytotoxic agents for cancer cells<br />

Xiaohui Wang, Li-Biao Han ·······························································································································297<br />

P-109 The synthsis of tripyrrole peptide containing phosphonyl Li-feng Cao, Li-li Shen, Ru-yi Zou,<br />

Cun-jiang Liu, Yong Ye, Xin-cheng Liao, Yu-fen Zhao··························································································298<br />

P-142 Developing a simple assay to screen for organophosphatases Gareth Williams ································299<br />

P-143 The pharmacokinetics analysis of the phosphoryl peptides in MCF-7/ADR cells Peng Zhang,<br />

Hongxia Liu, Zhenhua Xie ,Feng Liu, Mian Liu ,Yuyang Jiang ·············································································300<br />

XIV


P-145 New phosphoramidate dicationic vectors for gene therapy Mathieu Mével, François Lamarche,<br />

Jean-claude Clément, Jean-jacques Yaouanc, Laure Burel, Philippe Giamarchi, Tristan Montier, Pascal Delépine,<br />

Pierre Lehn, Paul-Alain Jaffrès, Claude Férec ····································································································301<br />

P-146 Novel cidofovir prodrugs: conceptual and synthetic strategies Boris A. Kashemirov, Joy Lynn F. Bala,<br />

Xiaolan Chen, Zhidao Xia, R. Graham G.Russell, Charles E. McKenna ································································302<br />

P-147 Fluorescently labeled risedronate and related analogs: novel synthesis and evaluation as imaging<br />

probes Larryn W. Peterson, Boris A. Kashemirov, John M. Hilfinger, Charles E. McKenna···························303<br />

P-149 Syntheses and characterizations of α-aminophosphonic acids and their derivatives Fang Hua,<br />

Fang Meijuan, Liu Linna, Zhao Yufen·················································································································304<br />

P-150 Ligand-protein inverse docking as a potential tool in the computer search of protein targets of<br />

mycoediketopiperazine, a novel fungal metabolite from a papularia SP. Fang Meijuan, Fang Hua,<br />

Ji Zhiliang, Luo Shun, Zhao Yufen ······················································································································305<br />

P-151 Synthesis of mopholino oligonucleotide with normal phosphate backbone by phosphoramidite<br />

methodology Pu-Qin Cai, Nan Zhang, Chun Guo, Pei-Zhuo Zhang, Yu-Yang Jiang, Yu-Fen Zhao··················307<br />

P-152 Electrospray ionization mass spectra of amino acid methyl ester 5'-phosphoramidates of 2',<br />

3'-isopropylideneuridine Chen Wei-Zhu, Gao Yu-Xing, Zhao Yu-Fen ························································308<br />

P-153 Synthesis and bioactivity of six-ring nucleoside modified siRNA Nan Zhang, Yue Wang, Pu-Qin Cai,<br />

Pei-Zhuo Zhang, Yu-Yang Jiang, Yufen Zhao·······································································································309<br />

P-156 A novel synthesis of o-phosphorylatedn-menthoxy-carbonyl tyrosine Wang Tongjian, Cheng Fang,<br />

Tang Guo, Zhao Yufen ·······································································································································310<br />

P-157 Inhibition of pokemon gene expression by antisense oligonucleotides Nan Zhang, Yue Wang,<br />

Zhen-Hua Xie, Yu-Yang Jiang , Yu-Fen Zhao·······································································································311<br />

P-158 Antisense therapy targeting pokemon oncogene in MCF-7 CEL Lan Zhang, Wen-Peng Li,<br />

Zhen-Hua Xie, Yu-Yang Jiang , Yu-Fen Zhao·······································································································312<br />

P-162 The positive and negative electrospray ionization (ESI) mass spectrometry of<br />

P-197<br />

1-(N-ethoxycarbonylamino) arylmethylphosphonic monoesters Yuan Ma, Wei Liu, Yufen Zhao·········313<br />

The synthesis and biological evaluation of benzamide riboside and its phosphordiamidate<br />

prodrug Jianning Zhou, Nan Zhang, Chunyan Tan, Jian Fan, Chun Guo, Yuyang Jiang ·································313<br />

Symposium 7<br />

PHOSPHORUS CHEMISTRY IN AGRICULTURE, INDUSTRY<br />

AND MATERIALS SCIENCE<br />

KL-12 Overview on op metabolism chemistry and its relationship to biological and toxic actions Philip W. Lee ·····315<br />

IL-33 Food safety: monitoring of organophosphate pesticide residues in crops and food Canping Pan ·····316<br />

IL-34 The role of phosphorus in crop protection: experimental and commercial disease and weed<br />

control agents Roger G. Hall····················································································································317<br />

IL-35 The use of op and development of new organophosphorus agrochemicals in China Hong-wu He ··318<br />

IL-36 Current status of organophosphorus insecticide and stereochemistry Mitsuru Sasaki······················319<br />

IL-37 Global use of organophosphorus pesticides William H. Hendrix, III,···················································320<br />

O-85 “Green” ways of phosphorus compounds preparation Budnikova Yu.H., Krasnov S.A., Graznova T.V.,<br />

Tomilov A.P., Turigin V.V., Magdeev I.M.., Sinyashin O.G. ··················································································321<br />

XV


O-86 Phosphate - an important element in the agricultural and environmental sphere Dirk Freese·······323<br />

O-88 Phosphate removal and recovery with calcined layered double hydroxides as an adsorbent<br />

Liang Lü , Zhaoliang Zhou , Jing He , Yulin Wang , Guoqiang Wu········································································325<br />

O-89 Development, scaleup and commercialisation of catalyst lignds Ranbir Padda and Gordon Docherty 326<br />

O-90 Bleaching chemisty of tris(hydroxymethyl)phosphine and tetrakis(hydroxymethyl)phosphonium<br />

sulfate Thomas Q. Hu , Brian R. James , Richard Chandra , Eric Yu, Dmitry Moiseev···································327<br />

O-91 Use of ion exchange composites based of titanium and zirconium phosphates for cleaning of<br />

water solutions Valery P. Nesterenko·······································································································328<br />

O-92 Selective chromium oligomerisation catalysts with various phosphorus ligands Kevin Blann,<br />

John T. Dixon, Esna Killian, Hulisani Maumela, M., Chris Maumela, Ann E. McConnell, David H. Morgan, Mari<br />

Pretorius, Henriette de Bod, William Gabrielli, Alex Willemse, Pumza Zweni, Palesa Nongodlwana·······················329<br />

O-94 An efficient catalytic asymmetric synthesis and biological evaluation of α-substituted aroyloxyl<br />

phosphonates Hui Liu, Hongwu He, Wen-Jing Xiao ················································································330<br />

O-95 Controlled synthesis of organic-inorganic materials derived from phosphorous compounds.<br />

variable porosity, photoinduced electron-transfer and hydrogen storage Ernesto Brunet,<br />

Olga Juanes, Juan Carlos ··································································································································331<br />

O-108 Study on the preparation of wheat starch phosphate with low degree of substitution Liu Zhongdong,<br />

Yang Yan ··························································································································································333<br />

P-8 Structural characteristic and electrode activities of phosphorus incorporated tetrahedral<br />

amorphous carbon films Aiping Liu, Jiaqi Zhu, Jiecai Han, Huaping Wu·················································334<br />

P-12 Electron conducting materials on the basis of perfluorophenylene-phosphanes Berthold Hoge,<br />

Sonja Hettel, Nina Rehmann·······························································································································335<br />

P-13 Synthesis and cytotoxic evaluation of novel naphthoquinone fused phosphorus heterocycles Bin Wang,<br />

Zhiwei Miao, You Huang, Ruyu Chen, Jie Wang ··································································································336<br />

P-16 1,3,4-oxazodizaole containing cyclo- and polyphosphazene Chen Zhao, Rui Bao, Jin-jun Qiu,<br />

Cheng-mei Liu···················································································································································338<br />

P-19 Stereoselective synthesis and biological activities of O-(E)-1-{1-[(6-chloropyridin-3-yl)methyl]<br />

-5-methyl-1h-1, 2, 3-triazol-4-yl}ethyleneamino O-ethyl O-aryl phosphorothioates De-qing Shi····339<br />

P-27 The influential factor of temperature on synthesis of L-arginine oligo-peptides mediated by<br />

phosphorus oxychloride Haiping Ren , Li Ma , Kui Lu··········································································340<br />

P-28 Distribution and concentration of total nitrogen, total phosphorous and total organic carbon in<br />

South Sea, China Haiyan Wang,Daxiong Han,Jianyun Lin································································341<br />

P-29 Molecular docking of substituted alkylphosphonates to pyruvate dehydrogenase Hao Peng,<br />

Hong-Wu He ·····················································································································································342<br />

P-32 A practical route to synthesis some phosphorylated prodrug Hong-bo Zhang, Ren-Zhong Qiao,<br />

Yufen Zhao························································································································································343<br />

P-53 Ultrasonic photocatalytic degradation of the pesticide “methyl parathion” LI He-ping ··················344<br />

P-56 Application of tetrakis hydroxymethyl phosphonium in leather production Li Ya, Shao Shuangxi,<br />

Jiang Lan, Han Ying, Shi Kaiqi···························································································································345<br />

P-58 The synthesis of N-hydroxymethyl-3-(dialkylphosphono) propionamide Xiao-lian Hu, Ru-yi Zou,<br />

Shang-bin Zhong, Jun-liang Yang, Zhi-yu Ju, Yong Ye, Xin-cheng Liao, Yu-fen Zhao·············································346<br />

XVI


P-60 Electrospray ionization tandem mass spectrometry of N-phosphoryl-α-, β- and γ- amino acids<br />

Liming Qiang, Shuxia Cao, Jianchen Zhang, Xincheng Liao, Yufen Zhao ······························································347<br />

P-63 Sediment phosphorus buffering capacity in drainage ditch in hilly area of purple soil, China<br />

Luo Zhuan-xi1, Zhu Bo,Wang Tao ······················································································································348<br />

P-83 Liquid crystalline behavior of cyclotriphosphazene Rui Bao, Chen Zhao, Jin-jun Qiu, Cheng-mei Liu ··349<br />

P-84 Monitoring influence of reaction conditions on self-assembly into oligo-peptides for three<br />

sulf-amino acids by using ESI-MS Kui Lu,Rui Li,Li Ma ··································································350<br />

P-90 Isolation and determination of diastereoisomers of amino acid hydridophorane by<br />

HPLC-ESI-MS Shuxia Cao, Yali Xie, Jinming Liu, Yanchun Guo, Xincheng Liao, Yufen Zhao ····················351<br />

P-97 Synthesis of long chair organophosphorus compounds on the basis of industrial fractions of<br />

higher olefins Il’yas S. Nizamov, Yan Ye. Popovich, Yevgeniy S. Ermolaev, Il’nar D. Nizamov,<br />

Gulnur G. Sergeenko, Vladimir A. Alfonsov,Elvira S. Batyeva, Magdeev I.M., Reznik V.S., Sinyashin O.G.,<br />

Yarullin R.S.······················································································································································352<br />

P-107 Synthesis and biological activities of O,O-dialkyl 1-((2-chlorothiazol-5-yl or 6-chloropyridin-3-yl)<br />

methyl -4-methyl-1h-1, 2, 3-triazol-4-yl-5-carbonyloxy substituted methyl phosphonates Xiao-Bao<br />

Chen, De-Qing Shi·············································································································································353<br />

P-110 Determination of orgranophosphorous pesticides using phosphorous ionic liquid as extraction<br />

and LPME-HPLC Xie Hongxue, He Lijun, Wang Meimei, Wu Xiuling, Wu NaNa········································354<br />

P-111 Synthesis and thermal property of bis(1-oxo-2,6,7-trioxo-1-phosphabicyclo[2,2,2]octane<br />

-4-methanoic)-2,2-dimethyl-1,3-propanediester Xi-Jun Sheng, Zheng-Qiu Li, Hong-Wu He···················356<br />

P-116 The improved method for the industrial scale preparation of adenosine cyclophosphate (cAMP)<br />

Xiu Qiang Wang, Dong Chao Wang, Ran Xia, Zhi Guang Zhang, Hai Ming Guo, Gui Rong Qu······························357<br />

P-122 Synthesis and herbicidal activity of α- [2-(fluoro-substituted phemoxy)-propionyloxy]<br />

alkylphosphonates Yan-Jun Li Hong-Wu He·························································································358<br />

P-126 Synthesis, crystal structure and bioactivities of dimethyl[(3,7-dichloroquinolin-8-yl carbonyloxy)<br />

alkyl] phosphonate Ying Liang, Ya-Zhou Wang, Hong-Wu He ··································································359<br />

P-131 Long-persistent fluorescent films of europium and dysprosium co-doped aluminates Yuan Ming Huang,<br />

Fu-fang Zhou ····················································································································································362<br />

P-133 Ab initio study on the toxicity of organic phosphorus agrochemical Zhang Yu·······························362<br />

P-136 Pattern of sediment phosphorus fractions in a shallow wuliangsuhai lake, China: effects of<br />

macrophytes Zhenying Liu, Zhaohui Jin, Yawei Li, Tielong Li, Jiujun Gu, Si Gao, Xiaoyu Chai ···················363<br />

P-166 New functionalized phosphoryl membrane carriers of organic and nonorganic substrates<br />

Krasnova N.S., Garifzyanov A.R., Cherkasov R.A.································································································364<br />

P-173 High throughput screening under Zinc-database and synthesis a dialkylphosphinic acid as a<br />

potential KARI inhibitor Liu Xinghai, Chen Peiquan, Guo Wancheng, Wang Suhua, Li Zhengming·················365<br />

P-191 Investigation on the peptides formation from amino acids reacted with trimetaphosphate by<br />

LC-MS Xiang Gao, Yan Liu, Pengxiang Xu, Guo Tang, Yufen Zhao ····························································369<br />

Symposium 8<br />

SPECIAL SESSION DEDICATED TO THE LATE PROFESSOR L. HORNER<br />

KL-4 Olefination reaction in organic sulfur chemistry and synthesis of natural products Marian Mikolajczyk ···371<br />

XVII


IL-3 2-hydroxy- and 2-amino-functional arylphosphines-synthesis, reactivity and use in catalysis J. Heinicke,<br />

W. Wawrzyniak, N. Peulecke, B. R. Aluri, P.G. Jones, S. Enthaler, M. Beller ······················································372<br />

IL-4 Enantioselective synthesis of P-chirogenic phosphorus compounds via the ephedrine-borane<br />

complex methodology Sylvain Juge·········································································································373<br />

IL-5 Umpolung in Horner reaction: phosphoramidates as a source of P-chiral organophosphates<br />

Wojciech Jacek Stec and Janina Baraniak···········································································································375<br />

IL-6 Synthesis and applications of phosphonates prepared from electrophilic phosphorus reagents<br />

David F. Wiemer ···············································································································································376<br />

IL-7 Development of novel chiral phosphorus ligands for enantioselective homogeneous and<br />

heterogeneous catalysis Kuiling Ding·····································································································377<br />

O-34 Chiral phosphorus-contained calixarenes S.O.Cherenok, V.I.Boiko, V.I.Kalchenko ······························379<br />

AUTHOR INDEX .............................................................................................................. 381<br />

XVIII


Plenary Lecture


PL-1<br />

STRUCTURE AND REACTIVITY OF INORGANIC PHOSPHORUS COMPOUNDS<br />

Francois Mathey<br />

Physical Sciences Unit 1 424, University of California, Riverside, CA 92521, USA<br />

This lecture highlights a few recent developments in organophosphorus chemistry. A first<br />

identified trend is directed toward very simple molecules such as P2 and PC - . A second trend is<br />

directed toward complex molecules such as organophosphorus polymers and phosphaporphyrins. A<br />

third trend concerns new applications such as hydrogen storage, optoelectronic devices and killer<br />

cells growth.<br />

1


PL-2<br />

PHOSPHATE - THE CORNERSTONE OF LIFE<br />

G. Micheal Blackburn<br />

Krebs Institute, Department of Chemistry , Sheffield University, Sheffield, S3 7HF, UK<br />

Phosphate monoesters and diesters have well-known roles in genetic materials, in co-enzymes, in<br />

energy reservoirs, as intermediates in biochemical transformations, and in the regulation of<br />

biological activity through protein phosphorylation. Their enormous kinetic stability is at the heart<br />

of these functions. Alkyl phosphate dianions have rates of spontaneous hydrolysis of 2 x 10 -20 s -1<br />

and dimethyl phosphate has kuncat 10 -15 s -1 at 25˚C. Thus, enzymes that hydrolyse or transfer the<br />

phosphoryl group manifest some of the largest rate accelerations known. Staphylococcal nuclease<br />

accelerates P-O bond fission by at least 10 16 -fold while phosphate monoesterases show rate<br />

accelerations ~10 21 -fold in some cases.[1,2]<br />

Investigations of enzyme mechanisms have been very successful in defining the stereochemistry<br />

of phosphoryl group transfer – usually inversion of configuration with some examples of retention<br />

involving double inversion). Kinetics, isotopic methods, pH-rate profiles, and other physical<br />

organic chemistry tools have sought generally to differentiate between three possible mechanisms:<br />

• A dissociative, SN1-type mechanism (DN + AN, in IUPAC nomenclature) that involves a stable<br />

metaphosphate anion PO3 – ;<br />

• An associative, two-step, addition–elimination mechanism (AN + DN) that involves a<br />

penta-covalent phosphorane intermediate; and<br />

• A concerted. SN2-like mechanism (ANDN) with no intermediate.<br />

In purely chemical reactions, phosphate monoesters generally follow a dissociative pathway with a<br />

loose transition state while phosphate diesters usually react via a synchronous transition state.[1]<br />

X-ray structures of enzymes that catalyse phosphoryl transfer reveal that they share limited<br />

similarity through having positive charge in the active site, either from cationic amino acid<br />

side-chains (His, Lys, Arg) or from metal ions (Mg, Zn, etc), but little else. Because of the<br />

difficulties in separating effects of systematic structural variation of substrates on Km and kcat,<br />

general physical methods have provided results that are less clear-cut than for model systems.[1] As<br />

a result, much reliance has been placed on the interpretation of structures of complexes of enzymes<br />

with substrate or product analogues to give mechanistic information, though this is unavoidably<br />

based on a ground-state complex. Approaches to transition states have been hampered by the<br />

instability of acyclic dialkyl pentaco-ordinate phosphoranes and the absence of alternative, reliable<br />

transition-state analogues. Among the most successful, the aluminium tetrafluoride anion has<br />

provided structures of several enzyme complexes, although it necessarily has an octahedral<br />

aluminium core replacing a pentacovalent phosphorus species.<br />

Magnesium trifluoride, MgF3 – , has been assigned [3,4] and under-assigned [5] as the molecular<br />

core seen in X-ray structures of trigonal-bipyramidal species (TBP) of enzymes catalysing<br />

phosphoryl transfer. A structure of ß-phosphoglucomutase (ßPGM) complexed with glucose<br />

6-phosphate (G6P) has been mis-represented as a pentacovalent tbp phosphorus intermediate [1,5]<br />

while our alternative interpretation of MgF3 – as the core tbp species[6], endorsed by computational<br />

analysis,[7] was at first rejected [8] but later fully substantiated. Kinetic, spectroscopic, and<br />

structural data confirm MgF3 – as a TSA for ßPGM.[9] Fluoride is a potent inhibitor for ßPGM and<br />

2


19 –<br />

F NMR analysis shows three F ions are recruited into the active site of the enzyme in the<br />

presence of G6P. NOE analysis using 15 N, 2 H-labelled identifies 5 amino acids in close contact with<br />

two fluorides while the third F – is co-ordinated to a catalytic Mg 2+ ion and to the hexose 2-OH<br />

group. These data [9] accurately locate the binding site for the magnesium ion, which is further<br />

co-ordinated to G6P C 1 -OH group and to Asp-8, and are totally in accord with the published X-ray<br />

structure.[4,7]<br />

In examples of metal fluoride complexes of phosphoryl transfer enzymes identified solely by<br />

x-ray analysis, the presence of F – (rather than OH – ) has necessarily been inferential at the<br />

resolutions achieved. Our results [9] thus constitute the first direct observation of a metal fluoride<br />

complex as a TSA for a phosphoryl transfer enzyme. † The bonding in the tbp accurately portrays<br />

the transition state for phosphoryl transfer in ßPGM and reveals the details of protein catalysis.<br />

Because the MgF3 – species is both isoelectronic and isosteric with metaphosphate, PO3 – , it is a<br />

near-perfect transition state analogue for phosphoryl transfer and can provide details of<br />

mechanisms of enzyme catalysis not hitherto available. Most importantly, re-calculation of the<br />

electron-density data for the MgF3–ßPGM complex (PDB accession 1O08 [4]) provides hydrogen<br />

bond lengths for the transition state for phosphoryl transfer at 1.2Å resolution that show no<br />

evidence for short, strong hydrogen bonds![11]<br />

A kindred situation has been identified for F1ATPase [4a] which enables a direct comparison of<br />

beryllium, aluminium, and magnesium fluoride structures.[4b, and Plenary Lecture by J.E.Walker]<br />

Several enzyme structures have been reported in which AlF3 has been identified a tbp TSA for<br />

phosphoryl transfer.[12] We have explored this situation for βPGM and also for a phosphoserine<br />

phosphatase in competition with MgF 3- by 19 F NMR and will report surprising developments.[10]<br />

They expose the risks inherent in an isolated x-ray crystallographic approach to enzyme<br />

mechanisms for phosphoryl transfer and further illuminate enzyme mechanisms for phosphoryl<br />

group transfer.<br />

References<br />

1. Cleland, W.W.; Henge, A.C. Chem.Rev., (2006) 106, 3252-3278.<br />

2. Lad, C.; Williams, N.H.; Wolfenden, R. J. Amer. Chem. Soc. (1998) 120, 833-837.<br />

3. Graham, D.L.; Lowe, P.N.; et al. Chem. Biol. (2002), 9, 375-381.<br />

4. [a] Bowler, M.F.; Blackburn, G.M.; Leslie, A.G.W.; Walker, J.E. abstr. Gordon conf. Biophys. (2005). [b] “A new<br />

intermediate in the catalytic cycle of bovine mitochondrial F1-Atpase”, Bowler, M.W.; Blackburn, G.M.; Leslie,<br />

A.G.W.; walker. J.w.; Embo J in prepn.<br />

5. Lahiri, S.D.; Zhang, G.; Dunaway-Mariano, D.; et al. Science (Washington, DC, USA) (2003), 299, 2067-2071.<br />

6. Blackburn, G.M.; Williams, N.H.; et. al. Science (Washington, DC, USA) (2003), 301, 1184.<br />

7. Webster, C.E. J. Amer. Chem. Soc. (2004) 126, 6840-6841.<br />

8. Tremblay, L.W.; Zhang, G.; et al. J. Amer. Chem. Soc. (2005), 127, 5298-5299.<br />

9. Baxter, N.J.; Olguin, L.F.; Golicnik, M.; Feng, M.; Hounslow, A.M.; Bermel, W.; Blackburn, G.M.; Hollfelder, F.;<br />

Waltho, J.P.; Williams, N.H. Proc. Nat. Acad. Sci. USA, (2006) 103(40), 14732-14737.<br />

10. Baxter, N.J.; Hounslow, A.M.; Waltho, J.P. unpublished results.<br />

11. Blackburn, G.M.; Gamblin, S.J.; Smerdon, S.L. unpublished data.<br />

12. Inter alia: Schlichting, I.; Reinstein, J.; Nature Struct. Biol. (1999), 6(8), 721-723.<br />

† As opposed to a GTP hydrolase.[3]<br />

3


Symposium 1<br />

Phosphorus in Organic Synthesis & Stereochemistry;<br />

Structure and Reactivity of Organophosphorus Compounds


KL-1<br />

CHEMISTRY OF CARBAPHOSPHATRANES<br />

Takayuki Kawashima<br />

Department of Chemistry, Graduate School of Science, The University of Tokyo<br />

7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan Email: takayuki@chem.s.u-tokyo.ac.jp<br />

Main group atranes are tricyclic compounds that have transannular dative bond from nitrogen to<br />

central main group elements as shown below. The characteristics of proazaphosphatranes<br />

(conjugate bases of azaphosphatranes 1, a typical example of main group atranes), 1 which are<br />

known as basic catalysts, are strongly attributable to the transannular dative bond of nitrogen to the<br />

central phosphorus. Replacement of the dative bond by a covalent bond would supply different<br />

reactivity and structure to the compound. From such a viewpoint, we succeeded in synthesizing<br />

1-hydro-5-carbaphosphatrane 2 as the first main group atrane derivative bearing a 1-5 covalent<br />

bond, which has the perfectly “anti-apicophilic” arrangement. 2 Here we report the synthesis,<br />

structures, and reactions of 1-hydro-6-carbaphosphatrane 3 3 containing a novel tetradentate ligand<br />

with three six-membered rings and its tautomer 4 as well as their comparison with those of<br />

5-carbaphosphatrane 2.<br />

In sharp contrast to 1-hydro-5-carbaphsophatrane 2, 1-hydro-6-carbaphosphatrane 3 was<br />

obtained as a mixture with its tautomer, phosphonite 4. Interestingly, single crystals of 3 and 4<br />

were obtained by the slow evaporation of saturated solutions of a mixture of 3 and 4 in ether or<br />

benzene, respectively, whose crystal structures were determined by X-ray crystallographic analysis.<br />

Oxidation and sulfurization reactions using the mixture of 3 and 4 were found to proceed<br />

quantitatively via trivalent tautomer 4, whereas quantitative hydride abstraction using<br />

triphenylmethyl cation proceeded via pentacoordinate tautomer 3. Theoretical calculations as well<br />

as other reactions including radical reactions will also be discussed.<br />

X<br />

X<br />

1<br />

E<br />

N<br />

5<br />

2<br />

X<br />

3<br />

4<br />

main group atranes<br />

E= main group element<br />

X= O, NR<br />

R<br />

R<br />

N<br />

N<br />

H R<br />

P<br />

N<br />

1<br />

N<br />

+<br />

R<br />

R<br />

O<br />

O<br />

5<br />

H<br />

P<br />

C<br />

O<br />

R<br />

R<br />

R<br />

O<br />

O P<br />

C<br />

H<br />

O<br />

R<br />

O<br />

O<br />

R<br />

R<br />

2 (R= t-Bu) 3 (R= t-Bu) 4 (R= t-Bu)<br />

References<br />

1. J. G. Verkade, Coord. Chem. Rev. 1994, 137, 233.<br />

2. J. Kobayashi, K. Goto, T. Kawashima, J. Am. Chem. Soc. 2001, 123, 3387; J. Kobayashi, K. Goto, T. Kawashima, M.<br />

W. Schmidt, S. Nagase, J. Am. Chem. Soc. 2002, 124, 3703.<br />

3. S. Nakafuji, J. Kobayashi, T. Kawashima, M. W. Schmidt, Inorg. Chem. 2005, 44, 6500.<br />

P<br />

C<br />

R<br />

OH


KL-2<br />

DEVELOPMENT METHODS SYNTHESIS OF POLYHETEROPHOSPHACYCLANES<br />

WITH ENDOCYCLIC P-C BOND ON THE BASIS OF FUNCTIONALIZED<br />

ALKYLPHOSPHONATES(-PHOSPHINATES)<br />

M.A.Pudovik, N.A.Khailova, R.Kh.Bagautdinova, S.A.Terent’eva, L.K.Kibardina<br />

A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Centre of the Russian Academy of<br />

Sciences, Arbuzov Str. 8, 420088 Kazan, Russian Federation<br />

Within the direction, devoted evolution methods synthesis of polyheterophosphacyclanes with<br />

endocyclic P-C bond, two approaches.have obtained a development First is based on the reactions<br />

of intramolecular cyclization of polyfunctional phosphonates(-phosphinates), where phosphorus<br />

atom is connected with halogenalkylgroups, in combination with other structural fragments (ureas,<br />

thioureas, thiouretanes, thioamides etc.). They can be easily obtained by addition proton<br />

nucleophiles to chloromethylphosphonylated(-phosphinilated) isocyanates or isothiocyanates.<br />

Polyfunctional P(IV) derivatives in most cases at the presence of a base undergo intramolecular<br />

cyclization with the formation of saturated or unsaturated cyclic structures with endocyclic P-C<br />

bond.<br />

R<br />

Hal(CH2)n PNCX<br />

Y<br />

+ ZH<br />

R<br />

Hal(CH2)n PNHC(X)Z<br />

Y<br />

B<br />

-B . HCl<br />

Y<br />

R P<br />

(CH2) n<br />

N<br />

X<br />

Z<br />

n= 1; 2 X=O; S Y= O; S Z= NH2; NHAlk; NAlk2; OR; SR; Ph2P Hal= Cl; Br<br />

O<br />

O<br />

X<br />

H<br />

PhO<br />

HalCH2 PNCS<br />

ROH PhO<br />

HalCH2 PNHC(S)OR<br />

-RCl<br />

PhO P<br />

N<br />

S<br />

C=O<br />

In a number of cases reactions proceed stereoselectively with the preferred formation one of the<br />

diastereomers; that has allowed to obtain cyclic compounds in optically pure stste.<br />

For example, as a result of the reaction chiral O-phenyl(chloromethyl)isothiophosphonate with<br />

(R)-(+) or (S)-(-) (1-phenyl) ethylamines 2-(1-phenyl)ethylamino-4-thioxo-4-phenoxy<br />

-1,3,4-thiazaphosphol-2-ines were isolated in optically pure form.<br />

Ph<br />

(PhO) 2P(O)CHNHMe + ArNCX (PhO) 2P(O)CHN-C-NHAr<br />

X= O; S<br />

6<br />

Ph<br />

Me<br />

X<br />

PhO<br />

O<br />

P<br />

Ph<br />

CH<br />

N Me<br />

-PhOH N<br />

Ar C<br />

Second approach is based on the employment α- and β-aminoalkylphosphonates as the basic<br />

compounds, including optically active. As a result of addition them to isocyanates or<br />

isothiocyanates phosphorus containing ureas or thioureas are formed, which are cyclized with<br />

evolving of phenol molecule.<br />

Acknowledgement. This study was supported by the Russian Foundation for Basic Research (grant<br />

no. 06-03-32085).<br />

X


KL-3<br />

RINGS AND CAGES DERIVED FROM PHOSPHA-ALKYNES<br />

John Nixon<br />

Chemistry Department, School of Life Sciences, University of Sussex, Falmer, Brighton, BN19QJ, Sussex, UK<br />

Phosphaalkynes, typified by Bu t CP, are excellent building blocks for synthesising a range of<br />

unsaturated organophosphorus rings systems as well as cages. The lecture will discuss the<br />

4-membered 1,3-diphosphacyclobutadiene ring, 5-membered polyphospholyl ring anions P3C2Bu t 2<br />

and P2C3Bu t 3 and the 1,3,5-triphosphabenzene, P3C3Bu t 3, including new synthetic routes and their<br />

likely mechanisms. Some main group element and transition metal complexes will also be<br />

discussed.<br />

Oxidation of the ring anion P3C2Bu t 2 affords the hexaphospha-pentaprismane cage, P6C4Bu t 4<br />

which undergoes specific insertion reactions between the two phosphorus atoms that connect the<br />

two 5-membered rings, when treated with “carbene-like” fragments E, (E = S, Se, Te, R2M, (M<br />

=Ge, Sn and Pb), to afford the cage compounds EP6C4Bu t 4. Ready insertion of the isolobally related<br />

[Pt(PPh3)2] also occurs, however a different type of reaction occurs with [PtCl2] involving both<br />

insertion into the cage and Cl migration from platinum to phosphorus . Interesting features of these<br />

structures and their NMR spectra will be presented and discussed.<br />

* In collaboration with Laszlo Nyulaszi, Guy Clentsmith, Matthew Francis, Mahmoud Al-Ktaifani, Peter Hitchcock,<br />

Phil Power, Scott Clendenning, Tony Avent, Michael Lappert, Philip Merle, Philip Uiterweerd and Monte Helm. The<br />

research was funded by the EPSRC and the Royal Society.<br />

7


IL-1<br />

METAL-MEDIATED P-H ADDITION AS A POWERFUL TOOL FOR THE<br />

CONSTRUCTION OF C-P BONDS: FROM ACADEMIC INTERESTS TO<br />

PRACTICAL APPLICATIONS<br />

Li-Biao Han<br />

National Institute of Advanced Industrial Science and Technology<br />

Tsukuba, Ibaraki 305-8565, Japan; Email: libiao-han@aist.go.jp<br />

Compared to the progress in regio- and stereocontrol in carbon-carbon bond-forming reactions,<br />

the precise synthesis of organophosphorus compounds (efficient and controlled phosphorus-carbon<br />

bond-forming reactions) remains rather undeveloped. This situation hampers further exploration on<br />

the applications of these compounds in material and medicinal chemistry which demand a huge<br />

chemical pool of structurally well defined functional organophosphorus. Since our first report on<br />

the palladium-catalyzed addition of H-phosphonates to alkynes in 1996, we have been<br />

concentrating on the development of practically useful new reactions for the synthesis of<br />

organophosphorus compounds (see below). Some of them are currently being evaluated by the<br />

industry showing that kilograms of alkenylphosphinates can be easily generated by using a trace<br />

amount (


(d) Pd and Rh-catalyzed P(O)-H addition to isocyanides<br />

R-NC + R'2P(O)H cat. Pd<br />

R'2(O)P N<br />

cat. Rh<br />

R<br />

HN<br />

R'2(O)P R<br />

9<br />

P(O)R' 2<br />

(e) Rh-catalyzed homo- and heterodehydrocouplings of P-H bonds<br />

RPH2 Rh cat. (RPH) 2 + H2 Ph<br />

(R2PH) [(R<br />

2PH +<br />

Rh cat.<br />

PhSH<br />

2P) 2]<br />

(2) Optically active phosphorus compounds<br />

RO<br />

R'<br />

R = (-)menthyl<br />

P<br />

O<br />

H<br />

Ph<br />

1 Rp<br />

+<br />

R2 H P<br />

O R<br />

O<br />

O<br />

1<br />

R2 R1 cat. [Pd]<br />

cat. [Rh]<br />

O<br />

RO P<br />

O<br />

RO P<br />

Pd(OAc) 2 (5 mol %),<br />

L (7.5 mol %), additive<br />

Dioxane, 100 oC (3) New-phosphorus containing polymers<br />

O O<br />

H P Ar P H<br />

X X<br />

R<br />

Ph<br />

Ph<br />

R'<br />

R'<br />

O R<br />

P O<br />

O<br />

1<br />

R2 R1R2 up to 88.5% ee<br />

cat. Rh<br />

condition A<br />

O<br />

RO<br />

P<br />

Ph<br />

+<br />

H<br />

R = (-)menthyl<br />

cat.Ni/Ph 2P(O)OH<br />

condition B<br />

L =<br />

R'<br />

R' 2P<br />

O<br />

P<br />

R<br />

O<br />

P<br />

R<br />

Fe<br />

O<br />

Ar P<br />

R<br />

O<br />

Ar P<br />

AIBN or base<br />

Ph 2PSPh<br />

stereoretention<br />

PR 2<br />

CH 3<br />

H<br />

R<br />

R<br />

R<br />

n<br />

RO P<br />

n<br />

+ H 2<br />

(4) A novel new class of potent anticancer agents<br />

New organophosphorus compounds showing strong anticancer activity towards several tumor cell<br />

lines have been revealed (will also be presented in the poster section).<br />

This work was partially supported by New Energy and Industrial Technology Development Organization (NEDO) of<br />

Japan (Industrial Technology Research Grant Program in 2004).<br />

References<br />

T. Hirai and L.-B. Han, J. Am. Chem. Soc. 2006,128, 7422; L.-B. Han and T. Tilley, J. Am. Chem. Soc. 2006, 128,<br />

13698; Q. Xu and L.-B. Han, Org. Lett., 2006, 8, 2099; L-B Han and C.-Q. Zhao, J. Org. Chem. 2005, 70, 10121; L-B<br />

Han, Z. Huang, S. Matsuyama, Y. Ono and C.-Q. Zhao, Journal of Polymer Science Part A Polymer Chemistry, 2005,<br />

43, 5328-5336; L.-B. Han, Y. Ono and H. Yazawa, Org. Lett., 2005, 7, 2909; L.-B. Han, C. Zhang, H. Yazawa, and S.<br />

Shimada, J. Am. Chem. Soc. 2004, 126, 5080.<br />

O<br />

Ph<br />

R'


IL-2<br />

NEW SYNTHETIC APPROACHES TO THE CHIRAL CYCLIC AND MACROCYCLIC<br />

PHOSPHINE LIGANDS<br />

O.G.Sinyashin a , A.A.Karasik a , E.Hey-Hawkins b .<br />

a A. E. Arbuzov Institute of Organic and Physical Chemistry, Russian Academy of Sciences, Arbuzov str. 8, Kazan,<br />

Russia, 420088. E-mail: oleg@iopc.knc.ru<br />

b<br />

Institut für Anorganische Chemie der Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany. E-mail:<br />

hey@rz.uni-leipzig.de<br />

Design of chiral ligands has been a central subject in the development of catalytic and<br />

stoichiometric asymmetric reactions. However studies involving diphosphine ligands and especially<br />

chiral polyfunctional diphosphines have mostly been focused on linear compounds; in contrast,<br />

heterocyclic diphosphines in which the phosphorus atoms are incorporated into the ring have not<br />

been extensively investigated, though such incorporation leads to essential differences in the<br />

structures and the properties of acyclic and cyclic compounds. Condensation in the<br />

three-component system of primary chiral/achiral phosphines and amines with formaldehyde is a<br />

powerful method of constructing various heterocyclic air-stable aminomethylphosphines.<br />

A number of enantiopure heterocyclic di- and monophosphines had been obtained via<br />

above-mentioned condensation with chiral amines 1,2 and amino acid salts 3 (Scheme 1). Due to<br />

heterocyclic structure of the phosphines, their asymmetric center disposed at close proximity of the<br />

transition metal coordinated with phosphorus. It should be mentioned that phosphino amino acid<br />

salts and their complexes are water-soluble and could be used in the biphasic catalysis.<br />

R<br />

P H +CH2O + H N<br />

P<br />

R'<br />

O2C<br />

N<br />

N<br />

CO 2<br />

R<br />

R 3P<br />

R<br />

Ph<br />

Cl<br />

Pt<br />

P<br />

R'<br />

Me<br />

N<br />

N<br />

N<br />

R<br />

CO2<br />

P<br />

P<br />

O 2C R'<br />

R<br />

10<br />

Ph<br />

Me<br />

N<br />

R =<br />

R''<br />

Ph<br />

Me<br />

N<br />

R''<br />

Br<br />

R'<br />

R'' = H, Me, Pr i<br />

OC CO<br />

Re<br />

R<br />

P<br />

P<br />

CO<br />

R<br />

Fe<br />

Fe<br />

Ph<br />

Me<br />

N<br />

The condensation of l-menthylphosphine gives us a row of chiral heterocyclic di- and<br />

monophosphine ligands with chirality in the α-position to phosphorus atoms (Scheme 2). Lipo- and<br />

hydrophilicity of the obtained phosphines and their complexes could be tuned by varying the<br />

substituents on nitrogen atoms.<br />

In order to obtain systems with asymmetrical phosphorus atoms we have studied the reactivity of<br />

secondary diphosphines. Condensation of di(arylphosphino)ethane and chiral methylbenzylamine<br />

with formaldehyde produces a meso-isomer of 1,3,6-azadiphosphacycloheptane 4 as a main product<br />

(Scheme 3). The meso-isomer demonstrates relatively high lability of the phosphorus configuration.<br />

Within few days it converted into the equilibrium mixture of meso- and rac-isomers with<br />

predominance of one of the rac-isomers. However, analogues with a propylene chain between two<br />

CH 2<br />

Scheme 1


phosphorus atoms have not been described yet. We have showed that instead of the desired<br />

eight-membered 1-aza-3,7-diphosphacyclooctanes the unusual macrocyclic<br />

1,9-diaza-3,7,11,15-tetraphosphacyclohexadecane 5 is formed in the reaction of<br />

1,3-bis(mesitylphosphino)propane with formaldehyde and chiral methylbenzylamine (Scheme 3).<br />

The high yield of the macrocycle was explained in terms of covalent self-assembly.<br />

P<br />

N<br />

N<br />

N<br />

R<br />

P<br />

P N<br />

R<br />

P<br />

R<br />

R<br />

M<br />

Cl Cl<br />

P H +CH2O + H N<br />

P<br />

N<br />

N<br />

R<br />

R<br />

R =<br />

11<br />

CH 3<br />

,<br />

CO 2H<br />

CO 2H<br />

Cl<br />

Cl<br />

M<br />

P<br />

M = Pt, Pd<br />

PR 3<br />

N<br />

N<br />

R<br />

R<br />

Covalent self-assembly of macrocycles appears to be a general process in aminomethylphosphine<br />

chemistry and is a useful method for a simple and effective one-pot synthesis of macroheterocyclic<br />

polyphosphines with large chiral intamolecular cavities (Scheme 3).<br />

Ph<br />

Me<br />

N<br />

N<br />

Ph<br />

P<br />

P<br />

Ph<br />

N<br />

P<br />

P<br />

Ar<br />

O<br />

NMe<br />

O<br />

Ar<br />

Ph<br />

O<br />

NMe<br />

O<br />

Me<br />

N<br />

N<br />

P H +CH2O + H N<br />

P<br />

P<br />

Ph<br />

Ph<br />

N<br />

Ar<br />

P<br />

P<br />

Ar<br />

Financial support from Volkswagen Foundation, RFBR (No. 06-03-32754-a), Russian Science<br />

Support Foundation and from President’s of RF Grant for the support of leading scientific schools<br />

(No. 5148.2006.3) is gratefully acknowledged.<br />

References<br />

1. A.A. Karasik et al. J.Chem.Soc., Dalton Trans, 2003, 2209; 2. A.A. Karasik et al. Mendeleev Commun, 2005, 89; 3.<br />

A.A. Karasik et al. Polyhedron, 2002, 21, 2251; 4. A.A. Karasik et al. Z. Anorg. Allg. Chem. 2007, in press; 5. R.N.<br />

Naumov et al. Dalton Trans, 2004, 357.<br />

N<br />

Ar<br />

P<br />

P<br />

Ar<br />

N<br />

Ar<br />

Me<br />

Me<br />

P<br />

Ph<br />

Me<br />

Me<br />

Me<br />

Ar<br />

N<br />

Me<br />

Me<br />

P<br />

P<br />

N<br />

Ar<br />

i-Pr<br />

Me<br />

i-Pr<br />

Ph<br />

N<br />

P<br />

P<br />

N<br />

P<br />

i-Pr<br />

Ar<br />

i-Pr<br />

i-Pr<br />

i-Pr<br />

Scheme 2<br />

Scheme 3


O-1<br />

SYNTHESIS AND PROPERTIES OF λ 5 -PHOSPHININES AND λ 5 -AZAPHOSPHININES<br />

Aleksandr N.Kostyuk, Yurii V.Svyashchenko, Dmitrii M.Volochnyuk, Dmitrii A.Sibgatulin, Aleksandr M.Pinchuk<br />

Institute of Organic Chemistry National Academy of Sciences of Ukraine, Murmanska Str.5, Kyiv, 02094 Ukraine<br />

Continuing our research [1] on λ 5 -phosphinines and λ 5 -azaphosphinines we have further<br />

investigated the reaction of phosphine 1 bearing an enamine residue with alkylating agents. The<br />

phosphonium salts 2 were found to react differently with bases. While the salts 2 upon treatment<br />

with aqueous sodium hydroxide transformed into stable ylides 3, heating the salts 2 with a catalytic<br />

amount of triethylamine lead to cyclic phosphonium salt 4.<br />

We have investigated various reaction conditions under which both the ylides 3 and the<br />

phosphonium salts 4 were converted into λ 5 -phosphinines 5. Thus, we have found a new approach<br />

to λ 5 -phosphinines. This approach could be applied for the synthesis of λ 5 -azaphosphinines 7.<br />

Other types of phosphinines and mechanisms of their formation will be also discussed.<br />

Reference<br />

[1] A.N.Kostyuk, Y.V.Svyaschenko, D.M.Volochnyuk Tertrahedron, 2005 Vol.61 pp 9263-9272.<br />

12


O-2<br />

THE SYNTHESIS AND SPECTROSCOPIC PROPERTIES OF spiro-ansa-spiro<br />

PHOSPHAZENES<br />

Amgalan Natsagdorj*, Selen Bilge**,Semsay Demiriz**,Zeynel Kilic**<br />

* Department of Chemistry, Mongolian National University, 210646 -Ulaanbaatar, Mongolia<br />

** Department of Chemistry, Ankara University, 06100 Tandoğan-Ankara, Turkey<br />

Cyclophosphazene derivatives and polyorganophosphazenes are in the borderline inorganic,<br />

organic and high polymer chemistry. It has been used in the preparation of novel phosphazene<br />

derivatives with different substituents. The condensation reactions of NxOy-donor type<br />

aminopodands (x, y=2,3,4) with N3P3Cl6 in dry THF yield partially substituted spiro-ansa-spiro,<br />

spiro-bino-spiro phosphazenes, respectively.<br />

The structures of the compounds have been examined by FTIR, 1 H-, 13 C-, 31 P-NMR, HETCOR,<br />

MS and elemental analyses.<br />

References<br />

[1] Bilge, S., Natsagdorj, A., Demiriz, Ş., Caylak, N., Kılıc, Z., Hokelek, T., Helv. Chim. Acta, 2004, 87, 2088.<br />

[2] Tercan., B., Hokelek, T., Bilge, S., Natsagdorj, A., Demiriz, Ş., Kılıc, Z., Acta Cryst., 2004, E60, 795.<br />

13


O-3<br />

ACETYLENEPHOSPHONATES: REACTIONS WITH NUCLEOPHILES<br />

B.I. Ionin, A.V. Dogadina, A.V. Aleksandrova and N.G. Didkovskii<br />

St. Petersburg State Technological Institute26 Moskovskii pr., St. Petersburg 190013, Russia.<br />

E-mail: bi@thesa.ru<br />

Acetylenephosphonates are accessible compounds, in much due to our earlier investigat-ions.<br />

This report concerns mainly three groups of such compounds, namely<br />

chloroacetyl-enephosphonates 1, aminoacetylenephosphonates 2 and acetylenediphosphonates 3.<br />

O<br />

(AlkO) 2P<br />

O<br />

Cl (AlkO) 2P NR2 (AlkO) 2P P(OAlk) 2<br />

1 2 3<br />

We found that in many cases the classical reactions of these compounds with nucleophiles<br />

proceed with certain features not observed earlier for related carboxylates. Reaction of neutral<br />

nucleophiles with chloroacetylenephosphonates 1 results in substitution of chlorine, and by this<br />

route were prepared compounds 2 and 3. With primary t-butylamine reaction is accompanied by<br />

hydrogen transfer with formation of ketenimine 4 but t-butylphosphine produces<br />

phosphinoacetylenephosphnates 5; other primary amines afford amidines 6.<br />

O<br />

O<br />

O NR<br />

(AlkO) 2P<br />

o NBu-t (AlkO) 2P<br />

14<br />

PHBu-t<br />

O<br />

(AlkO) 2P<br />

4 5 6<br />

With carbanionic nucleophiles formed in situ in the reaction of 1 with 1,3-dicarbonyl compounds<br />

(e.g., dimedone, acetylacetone, malonates, malonic dinitrile) in acetonitrile in the presence of<br />

K2CO3 reaction proceeds much similarly. Initially the product of chlorine substitution is formed,<br />

which can transform to allene, registered as intermediate or final compound. In the case of malonic<br />

dinitrile second molecule of the nucleophile is added to the activated multiple bond. In many cases<br />

the compound formed captures potassium cation to give finally a stable carbanionic compound (7,8).<br />

Similar ejection of H + rather than K + with formation of stable carbanion 9 occurs at the addition of<br />

malonate carbanions to the triple bond of diphosphionate 3, as evidenced by means of 13 C NMR<br />

spectroscopy (with and without proton decoupling) and x-ray structural investigation.<br />

O<br />

(AlkO) 2P<br />

_<br />

O<br />

O<br />

K +<br />

(AlkO) 2P<br />

O NC<br />

K +<br />

CN<br />

CN<br />

_ (AlkO) 2P<br />

CN<br />

O<br />

NC _<br />

O<br />

K +<br />

CN<br />

O<br />

NHR<br />

P(OAlk) 2<br />

7 8 9<br />

The reasons for retention of stable carbanions (enhanced CH-acidity and formation of a cavity by<br />

electron-donor groups) is discussed on the basis of B3LYP calculations and experimental<br />

observations.<br />

Addition of primary and secondary amines to inamines 2 and to other acetylenephos-phonates<br />

leading to enamines, enediamines, amidines and heterocycles is considered.


O-4<br />

NEW INSIGHTS IN P-NUCLEOPHILE ADDITIONS ONTO UNSATURATED IMINO<br />

DERIVATIVES FOR THE SYNTHESIS OF P-ANALOGUES OF GLUTAMIC ACID<br />

Christian V. Stevens,* Kristof Moonen and Ellen Van Meenen<br />

Research Group SynBioC, Department of Organic Chemistry, Faculty of Bioscience Engineering, Ghent University,<br />

Coupure links 653, B-9000 Gent, Belgium.<br />

Email: Chris.Stevens@UGent.be<br />

Aminophosphonates and aminophosphonic acids play a very important role in agrochemistry as<br />

well as in medicinal chemistry because they are structural mimetics of the transition state during<br />

peptide hydrolysis. Therefore, several aminophosphonic acids and azaheterocyclic phosphonates<br />

have excellent fysiological activity as enzyme inhibitor.<br />

A major synthetic route for aminophosphonates is the addition of phosphites to imines and many<br />

different conditions have been described. The addition of phosphites to α-unsaturated imines was<br />

previously described to yield selectively 1,2-adducts.<br />

We have now developed a new acid promoted addition of phosphites to α-unsaturated imines<br />

leading to α-difosfono-amines. The tandem addition involves a reversible 1,2-addition followed by<br />

a 1,4-addition leading to the new class of phosphono aminophosphonates. This new reaction allows<br />

the synthesis of a variety of phosphorus analogues of glutamic acid which are of great importance<br />

for the study of ionotropic and metabotropic glutamate receptors.<br />

R 1<br />

R 1<br />

N R2<br />

H +<br />

H<br />

N R2 H<br />

Pathway A<br />

1,4-addition<br />

H<br />

HN R2<br />

R P<br />

3 R<br />

O<br />

3 O OTMS<br />

R 1<br />

1,2-addition<br />

POTMS(OR 3 ) 2<br />

H<br />

R 1<br />

R 1<br />

N R2<br />

TMS<br />

H<br />

N R2 H<br />

P(OR 3 ) 2<br />

O<br />

OR<br />

P<br />

3<br />

OR 3<br />

OTMS<br />

Pathway B<br />

SN'-like substitution<br />

-POTMS(OR 3 ) 2<br />

N R2<br />

R P<br />

3 R<br />

O<br />

3 O OTMS<br />

R 1<br />

H<br />

15<br />

N R2<br />

(R 3 OTMS O) 2P<br />

R 1<br />

Aqueous work-up<br />

H<br />

(R 3 O<br />

O) 2P<br />

R 1<br />

HN R2<br />

P(OR 3 ) 2<br />

O<br />

R 1<br />

N R2<br />

(R 3 OTMS O) 2P<br />

P OR3<br />

OR 3<br />

TMSO<br />

The methodology was also studied in detail on hydrazones and oximes.<br />

Further, it was shown that this difosfonylation methodology also could be applied on the method<br />

of Savignac for the synthesis of α-phosphono aldehydes. The steric bulk of the N-substituent<br />

determines the sequence of the 1,2 versus 1,4-addition of silylated phosphite or trialkyl phosphite.<br />

References<br />

Moonen, K.; Laureyn, I., Stevens, C.V. Chem. Rev. 2004, 104, 6177 – 6215.<br />

Moonen, K.; Van Meenen, E.; Verwée, A.; Stevens, C.V. Angew. Chem. Int. Ed. 2005, 44, 7407 – 7411.<br />

Stevens, C.V.; Van Meenen, E.; Moonen, K.; Verwée, A.; Rottier, M., J. Org. Chem., Submitted.


O-5<br />

A FACILE AND HIGHLY EFFICIENT METHOD FOR Α-AMINO PHOSPHONATES VIA<br />

THREE-COMPONENT REACTIONS FROM ARYL AZIDES CATALYZED BY<br />

IRON-IODINE IN THE ABSENCE OF SOLVENT<br />

You Huang *, Yaqin Yu, Tanglin Liu, Dexin Feng and Ruyu Chen<br />

Institute and State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071<br />

α-Amino phosphonates constitute an important class of biologically active compounds, and their<br />

synthesis has been a focus of considerable attention in synthetic organic chemistry as well as in<br />

medicinal chemistry. 1 Most synthetic methods reported utilize reactions of imines with phosphorus<br />

nucleophiles. Recently, it has been shown that three-component reactions of aldehydes (or ketones),<br />

amines, and diethyl phosphite were efficiently promoted by catalytic amounts of Lewis acids . 2 and<br />

Brosted acid, 3 or under microwave conditions. 4 Although these procedures do not require the<br />

isolation of the unstable imines prior to the reactions, longer reaction times are necessary to obtain<br />

the desired products in good yields at room temperature. In addition, the use of harmful organic<br />

solvents such as CH2Cl2 is undesirable from the viewpoint of today’s environmental consciousness.<br />

On the other side, in the three-component reactions, only primary or secondary amines were used as<br />

the amine components, to the best of our knowledge, there are no reports that the azides are used in<br />

this kind reaction. In the course of our investigations to develop environmentally friendly synthetic<br />

methods of organophosphorus compounds, we have found that iron-iodine system function as<br />

effective catalysts for the three-component reactions of aldehydes, azides, and diethyl phosphite in<br />

the absence of solvent afforded α-aminophosphonates in good to excellent yields (Scheme)<br />

R 1<br />

N 3<br />

R 2<br />

R 1 =H, 4-Cl, 4-CH 3<br />

R 2 =H, 2-Cl, 3-Cl, 4-Cl,2-NO 2, 3-NO 2, 4-NO 2, 4-CH 3, etc<br />

O<br />

H<br />

+ +<br />

H<br />

16<br />

O<br />

P<br />

Scheme<br />

OEt<br />

OEt<br />

neat<br />

R 1<br />

R 2<br />

NH<br />

Yield: 65-86%<br />

References<br />

1. Sheridan, R. P. J. Chem. Inf. Comput. Sci. 2002, 42, 103.<br />

2. Mu,X. J.; Lei, M.Y.; Zou, J. P.; Zhang, W. Tetrahedron Lett. 2006, 47, 1125 and references cited therein.<br />

3. Akiyama, T.; Sanada, M.; Fuchibe, K. Synlett, 2003, 10, 1463<br />

4. Yadav, J. S.; Subba Reddy, B. V.; Madan, C. Synlett, 2001, 7, 1131<br />

* This work was supported by and the Natural Science Foundation of Tianjin(05YFJMJC00600) and Nankai University<br />

Fe- I 2<br />

P<br />

O<br />

OEt<br />

OEt


O-6<br />

REACTION MECHANISM STUDIES OF SOLVOLYTIC DISPLACEMENT OF<br />

CHLORIDE FROM PHOSPHORUS<br />

Dennis N. Kevill, a Han Joong Koh, b and Suk Jin Kang b<br />

a<br />

Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115-2862, USA.<br />

b<br />

Department of Science Education, Jeonju National University of Education, Jeonju 560-757, Korea<br />

Phone, +1-815-753-6882; Fax, +1-815-753-4802. E-mail: dkevill@niu.edu<br />

We are applying the extended Grunwald-Winstein equation (eqn. 1) to solvolytic displacements<br />

at phosphorus and sulfur.<br />

log k/ko = l N + m Y + c (1)<br />

In equation 1, k and ko are the first order rate coefficients for solvolysis in a given solvent and in<br />

80% ethanol, l is the sensitivity to changes in solvent nucleophilicity (N), m is the sensitivity to<br />

changes in solvent ionizing power (Y), and c is a constant (residual) term. Previous<br />

studies 1 of the solvolysis of phosphorochloridates, (RO)2POC1 and [(CH3)2N]2 POC1, have been<br />

extended to cyclic phosphorochloridates, with five-and six-membered rings. Both kinetic and<br />

product studies are performed. We will also report on kinetic studies of the solvolyses<br />

of Ph2POC1, Me2POC1, Ph2PC1, (C2H5)2PCl, [(CH3)3C]2PCl,and (C2H5O)2PC1. The l and m<br />

values can be compared with previous values, 1 and with values for attack at sulfur, to give useful<br />

mechanistic information.<br />

Reference<br />

(1) Kevill, D.N.; Carver, J.S. Org.Biomol.Chem.2004, 2, 2040 and references cited<br />

17


O-7<br />

THE NEW TIPE OF CALIX[4]RESORCINES BEARING PHOSPHONATES AND<br />

PHOSPHONIUM FRAGMENTS AT THE LOWER RIM<br />

E.L. Gavrilova 1 , A.A. Naumova 1 , N.I. Shatalova 1 , A.R. Burilov 2 , M.A. Pudovik 2 ,<br />

E.A. Krasil’nikova 1 , A.I. Konovalov 2 .<br />

1<br />

Kazan Technology University, department of organic chemistry, Karl Marx str. 68. 420015 Kazan. Russia.<br />

Gavrilova_Elena_@mail.ru<br />

2<br />

A.E. Arbuzov Institute of Organic and physical Chemistry. Kazan Scientific Centre of Russian Academy of Science.<br />

Arbuzov str. 8. Kazan. 420088. Russia<br />

The present work deals with synthetic methodology that allows the preparation of<br />

calyx[4]resorcines bearing phosphonates and phosphonium fragments at the lower rim, the latter<br />

were further modifided at the upper rim with secondary and tertiary amine groups of different<br />

structure by Mannich reaction.<br />

The methodology of introduction of phosphorus groups based on the reaction of phosphorylation<br />

of arylhalides by the derivatives of P(III) acids in the presence of Ni(II) compounds in which<br />

connection two main methods of functionalization were used:<br />

I. Preparation of phosphorus functionalized calix[4]resorcines using calixarenes matrix as the<br />

starting material<br />

3MeSiO<br />

3 MeSiO<br />

OSiMe 3<br />

Br<br />

3 MeSiO<br />

Br<br />

Br<br />

OSiMe 3<br />

Br<br />

OSiMe 3<br />

OSiMe 3P<br />

OSiMe 3<br />

+<br />

RnP(軷 / 4 ) 3-n<br />

18<br />

NiBr 2<br />

PhCN<br />

?= O; R ' = Et, i-Pr; n=0<br />

? = N; R = Ph, R' = NEt2 ; n= 0-3<br />

HO<br />

OH<br />

P<br />

HO<br />

HO<br />

P<br />

OH<br />

OH<br />

P<br />

? = O; P = P(O)(OR') 2<br />

?= N; P = R n P + (NEt 2 ) 3-n Br -<br />

chair conformation<br />

II. Preparation of calix[4]resorcinarenes phosphorylated at the low rim using the methodology for<br />

synthesis of octols by fourfold condensation of 4-phosphorus substituted benzaldehydes with<br />

resorcinol<br />

P<br />

HO<br />

OH<br />

HO<br />

OH<br />

O<br />

HO<br />

OH<br />

P = P(O)(OR') 2 ; R' = Et, i-Pr; P<br />

P<br />

P = RnP P<br />

P<br />

+ (NEt2 ) 3-nBr - ;<br />

R = Ph; n = 0-3 bowl conformation<br />

Isolated compounds were characterized by 31 P, 1 H and 13 C spectroscopy and date of elemental<br />

analisis and MALDI TOF.<br />

Acknowledgement. The support of the RFBR ( grant No. 04-03-32512 ) is gratefully acknowledged.<br />

OH<br />

OH<br />

OH


O-8<br />

MICROBIAL RESOLUTION OF RACEMIC PHOSPHONATES DERIVATIVES WITH<br />

ONE OR TWO STEREOGENIC CENTRES<br />

Ewa Żymańczyk-Duda, Małgorzata Brzezińska-Rodak, Magdalena Klimek-Ochab, Renata Kuriata, Marta Miszuk,<br />

Paweł Kafarski and Barbara Lejczak.<br />

Szybowcowa 50/17 54-130 Wrocław, Poland<br />

Biotransformations are biocatalytic conversions of non-natural substrates to structurally diverse<br />

products and belong to the standard means of Green Chemistry, which is the vigorously developing<br />

field of organic chemistry [1]. Biocatalysts are applied where the chemical synthesis fails or where<br />

compounds of required stereochemistry have to be synthesized [2]. Phosphonates constitute group<br />

of compounds which molecules contain direct bond between phosphorus and carbon atoms. Among<br />

them are structural analogues of carboxylic acids - they influence the activity of enzymes involved<br />

in amino acids metabolism exerting biological effect as antibacterials, herbicides or<br />

neuromodulators [3]. One of the most dynamically developing fields of research – not fully<br />

explored - is microbial bioconversion of racemic – chemically synthesized starting materials - into<br />

optically pure derivatives of organophosphorous compounds [4, 5]. Two kind of phosphonates<br />

derivatives were used as substrates of biocatalysis: aminophosphonates with one stereogenic centre<br />

and hydroxyphosphonate ethylbuthyl diester with two asymmetric atoms. Aspergillus niger,<br />

Rhodotorula rubra and Rhodotorula gracilis were used as biocatalysts in kinetically controlled<br />

resolution of aminophosphonates into optically pure products, reaction was catalysed by L- or<br />

D-amino acid oxidase existing in fungal cells. Physiologically, this enzyme converses L- or D-<br />

amino acid leaving the opposite one as unreacted. Every fungal strain was previously cultivated<br />

with the addition of particular amino acid to induce the synthesis of required enzyme. This approach<br />

allowed obtaining optically pure aminophosphonates. Desymmetrization of hydroxyphosphonate<br />

ethylbuthyl diester – compound with two stereogenic centers required different strategies. There are<br />

at least two ways of microbial resolution of this substrate. First one involved microbial<br />

transesterification of vinyl butyrate with one of the optical isomers of racemic mixture of<br />

hydroxyphosphonate – biotransformation catalyzed by Bacillus sp. in anhydrous organic solvent.<br />

The second strategy based upon the oxidation of hydroxy – group of one of the isomers of the<br />

substrate, using fungal strains: Saccharomyces cerevisiae and Geotrichum candidum in water<br />

media. All microbial cells used for the resolution of hydroxyphosphonate ethylbuthyl diester were<br />

previously cultivated under conditions which allowed to induce desired enzyme activities inside the<br />

cells.<br />

References<br />

1.Kiełbasiński P, Omelańczuk J, Mikołajczyk M. 1998. Lipase-promoted kinetic resolution of racemic, P-chiral<br />

hydroxymethylphosphonates and phosphines. Tetrahedron Asymm. 9:3283-3287.<br />

2.Liese A, Filho MV. 1999. Production of fine chemicals using biocatalysis. Curr. Opin. Biotechnol. 10:595-603.<br />

3.Kafarski P, Lejczak B. 2001. Aminophosphonic acids of potential medical importance. Curr. Med. Chem. –<br />

Anti-Cancer Agents 1: 301-312<br />

4.Żymańczyk-Duda E, Brzezińska-Rodak M, Lejczak B. 2004. Stereochemical control of asymmetric hydrogen transfer<br />

employing five different kinds of fungi in anhydrous hexane. Enzyme Mikrob. Technol. 34:578-582.<br />

5.Żymańczyk-Duda E, Klimek-Ochab M, Kafarski P, Lejczak B. 2005 Stereochemical control of biocatalytic<br />

asymmetric reduction of diethyl 2-oxopropylphosphonates employing yeasts. J Organom. Chem. 690:2593-2596.<br />

19


O-9<br />

ADVANTAGES OF ORGANOPHOSPHORUS SYNTHESIS IN IONIC LIQUIDS:“GREEN”<br />

APPROACHES TO USEFUL PHOSPHORUS SUBSTITUTED BUILDING-BLOCKS<br />

I. L. Odinets a , E.V. Matveeva a , E. V.Sharova a , O. I.Artyushin a , V.A.Kozlov, D.V. Vorob’eva a , S. N. Osipov a , T. A.<br />

Mastryukova a , G.-V. Röschenthaler b<br />

a A.N. Nesmeyanov Institut of Organoelement compounds RAS, Moscow, Russia,<br />

b Institute for Inorganic& Physical Chemistry, The University of Bremen, Germany<br />

Currently, ionic liquids (ILs) due to their potential for recyclability, ability to dissolve a variety of<br />

organic, inorganic and metal complex materials and non-volatile nature, are of interest in the search<br />

for “green” alternatives of traditional organic solvents. Nevertheless, only a few applications of<br />

ionic liquids in organophosphorus chemistry can be found in the literature, namely the<br />

Wittig-Horner reaction 1a , the synthesis of α-aminophosphonates via the Kabachnik-Fields<br />

reactions 1b,c and the esterification of phosphonic(phosphinic) acids by triethyl(methyl)<br />

orthoacetate 1d . We would like to suggest examples of a new application of ILs as activating media<br />

for organophosphorus chemistry. Thus, the use of [Rmim][X] enhanced significantly the rate of the<br />

Michaelis-Arbuzov rearrangement to give the target products in high yields under mild conditions<br />

with short reaction times. The method described can be successfully combined in a one-pot<br />

synthesis with the BASIL TM procedure 2 used for the synthesis of trivalent phosphorus acid esters.<br />

Ph2P(O)R' 90% - quant<br />

[hmim]Br<br />

r.t., 30 min<br />

R=Ph<br />

R 2POEt + R'X<br />

20<br />

[bmim]NTf 2<br />

110<br />

R=OEt<br />

o C, 20 min<br />

(EtO) 2P(O)R'<br />

93- 95%<br />

The second example comprises the direct synthesis of a variety of carbamoylmethyl phosphine<br />

oxides (CMPO) useful for processing of liquid radioactive wastes. In this reaction phosphonium ILs<br />

can be successfully applied similar to imidazolium ones. In the case of polymeric materials<br />

modified by amino functions this procedure gives chemically stable membranes bearing<br />

CMPO-moieties for water cleaning.<br />

R1R2P(O)CH2COOH R1R2P(O)CH2CONR3R4 R (PhO) 3P/IL<br />

3 R 4 NH/<br />

110 quant.<br />

o C, 30min-1 h<br />

R ;<br />

1 ,R2 = OAlk, Alk, Ph R3 ,R4 = H, Alk, Ar, CH2Ar Furthermore, phosphorylated azides interesting as substrates for the ‘click’ chemistry approach<br />

may be readily obtained via nucleophilic substitution of ω-halohenoalkylsubstituted phosphorus<br />

compounds.<br />

R 1 R 2 P(O)(CH 2) nHlg<br />

NaN3/H2O/[bmim]PF6 r.t.<br />

R1R2P(O)(CH2) nN3 N<br />

N<br />

N<br />

(CH2) nP(O)R 1 R 2<br />

R<br />

R<br />

In all the above reactions the recovered ionic liquid may be recycled at least 5 times without any<br />

decrease in activity. The influence of the anion on the activity as well as reasons of activation by<br />

ILs and non-typical reaction course in some cases will be discussed based on detailed investigation<br />

of the reaction mechanisms and intermediates formed.<br />

Reference<br />

1. a) Kryshtal, G. V.; Zhdankina, G. M.; Zlotin, S. G. Mendeleev Commun. 2002, 176.b) Lee, S-gi; Park, J. H.; Kang, J.;<br />

Lee, J. K. Chem. Commun. 2001, 1698. c)4. Yadav, J. S.; Reddy, B. V. S.; Sreedhar, P. Green Chem. 2002, 4, 436. d)<br />

Yoshino, T.; Imori, S.; Togo, H. Tetrahedron Lett. 2006, 62, 1309.<br />

2. PCT Int. Appl. 2003, WO 2003062251; Chem. Abstr. 2003, 139, 149757.


O-10<br />

SYNTHESIS AND CHEMICAL PROPERTIES OF BENZO[E]-1,2-OXAPHOSPHORININE<br />

DERIVATIVES – P-ANALOGUES OF COUMARINES<br />

E.N.Varaksina, D.A.Tatarinov, K.Yu.Cherkin, V.F.Мironov, A.I.Konovalov<br />

A.E.Arbuzov Institute of Organic and Physical Chemistry, Russian Academy of Sciences, Arbuzov Str. 8, Kazan,<br />

420088, Russia, e-mail: vlena@iopc.knc.ru<br />

The chemistry of the Р-heterocycles with О–Р–С or N–P–C bonds is one of the important fields<br />

of organophosphorus chemistry. It is mainly connected with the possibility of obtaining of various<br />

biologically active compounds. Recently, we have offered an easy method for selective synthesis of<br />

the new type of Р-heterocycles (3) by reaction of phosphorylated catechols with terminal alkynes.<br />

The unusually easy transformation (the reaction proceeds at room temperature with the quantitative<br />

formation of compounds 3) of dioxaphosphole cycles to 1,2-oxaphosphorinine includes the<br />

uncatalyzed phosphaalkylenes fragment formation, the aromatic fragment halogenation and<br />

ipso-substitution of oxygen. The regiochemistry of these processes mainly depends on the nature of<br />

R, R 1 , R 2 substituents. It was shown that the phosphonium salts and cationic or anionic<br />

phosphorates are able to interact with acetylenes and give the close result. The reaction with<br />

phosphonium derivatives is turned out to be a classical addition of phosphorus halides to the<br />

carbon-carbon multiple bonds.<br />

The chemical properties of obtained phosphorinines (3) were investigated for the first time. The<br />

new functionalized P-analogues of natural coumarines were obtained. Among them the series of<br />

stable cyclic phosphonous acids and amines can be mentioned. The halogenation and alkylation<br />

reactions may proceed both with phosphorus atom and double carbon-carbon bond depending on<br />

the halogenation or alkylation reagents nature. Another unusual result is rather easy conversion of<br />

compounds (3) to phosphoranes (4) or to phosphonium salts (5) with the same or different<br />

substituents Y, Z, W.<br />

R1<br />

R2<br />

1<br />

OH<br />

OH<br />

R1<br />

R2<br />

X = Cl, Br; R = Alk, Ar<br />

O<br />

HC CR<br />

PX3<br />

O<br />

2<br />

21<br />

X<br />

R1<br />

R2<br />

3<br />

O O<br />

P<br />

X<br />

R<br />

X<br />

R1<br />

R2<br />

5<br />

X<br />

R1<br />

R2<br />

O +<br />

P<br />

R<br />

4<br />

Y<br />

Z<br />

O P W<br />

The offered method is a versatile approach for modification of the natural catechols and<br />

dihydroxy-derivatives of heterocycles as well as for a wide range of acetylenes.<br />

The work is supported by Russian Science Support Foundation and the МК-1434.2006.3<br />

program.<br />

R<br />

Y Z


O-11<br />

THE REACTION OF 1,2-NAPHTHOQUINONES WITH SOME P(III) DERIVATIVES –<br />

A VERSATILE SYTHETIC APPROACH TO POTENTIALLY USEFUL<br />

NAPHTHOQUINONES AND DIHYDROXYNAPHTHALE-NES CONTAINING<br />

PHOSPHORUS–CARBON BOND<br />

A.V.Bogdanov, V.F.Мironov, N.R.Khasiyatullina, D.B.Krivolapov,<br />

I.А.Litvinov, А.I.Konovalov<br />

A.E.Arbuzov Institute of Organic and Physical Chemistry, Russian Academy of Sciences,<br />

Arbuzov Str. 8, Kazan, 420088, Russia, e-mail: mironov@iopc.knc.ru<br />

As a rule, trivalent phosphorus compounds are used in chemistry of ortho-quinones for the<br />

synthesis of phosphoranes or phosphonium salts containing P + –OС bond. The reactions of<br />

1,2-naphthoquinones with P(III) derivatives have been insufficiently investigated by the time. The<br />

reaction of 1,2-naphthoquinones with phosphites was only reported to give pentaalkoxy<br />

phosphoranes. Here the reactions of 1,2-naphthoquinones with such P(III) derivatives as<br />

tris(diethylamino)-, tri(n-butyl)- and triphenylphosphines were investigated for the first time. The<br />

reactions unexpectedly give betaines 5-8 containing phosphorus moiety in the fourth position of<br />

naphthalene cycle with high yields. The treatment of compounds 5-8 with bromine or hydrogen<br />

halide yields corresponding quinone- or catechol-containing phosphonium salts 9-12.<br />

(Et2N)3P<br />

+<br />

O<br />

O R2<br />

R2 R1<br />

1-4<br />

O<br />

H<br />

O Hal2<br />

_<br />

or HHal<br />

R1 R2<br />

+<br />

P(NEt2)3<br />

_<br />

Hal<br />

OH<br />

OH<br />

+ (or)<br />

R1 R2<br />

+<br />

P(NEt2)3<br />

5-8<br />

9, 10, 12<br />

R1, R2 = H, H (1, 5, 9), Br, H (2, 6, 10), H, Br (3, 7, 11), Cl, Br (4, 8, 12),<br />

22<br />

O O<br />

_ R1<br />

Hal<br />

+<br />

P(NEt2)3<br />

11<br />

Hal = Cl, Br, J<br />

The reactions of the 3-substituted 1,2-naphthoquinones with tri(n-butyl)- and triphenylphosphines<br />

preferably lead to the formation of 1,1’,2,2’-tetrahydroxy-3,3’-dihalogeno-4,4’-binaphthyls, which<br />

give the stable complexes with two molecules of phosphine oxide.<br />

O O<br />

R2 R1<br />

2, 4<br />

R = Ph, n-Bu<br />

PR3<br />

H2O<br />

OH OH<br />

R2 R1<br />

R1 R2<br />

HO OH<br />

13-16<br />

. 2 O=PR3<br />

The structure of compounds 5-11 has been confirmed by NMR and single crystal X-ray diffraction<br />

(for compounds 9, 12). The work is supported by the DCMS program N. 1 of Russian Academy of<br />

Sciences.


O-12<br />

YLIDES AND CARBENES. THE FIRST CARBENE CATALYZED REACTION<br />

Shevchenko I.V.*, Rogalyov A.E., a Poliakov D.V., a Röschenthaler G.-V. b<br />

a Institute of Bioorganic Chemistry and Petrochemistry, Murmanskaya Street 1, 02660 Kiev, Ukraine<br />

b Institute of Inorganic and Physical Chemistry, University of Bremen, Leobener Str, 28334 Bremen, Germany<br />

The P=C ylidic bond of phosphorus ylides is able to dissociate with the formation of the<br />

appropriate phosphanes and carbenes.<br />

P P<br />

For example, ylide 3 obtained from diphosphane 1 and acyl imines 2 is capable of reversible<br />

cleavage of the P=C bond in solution to give carbene (nitrile ylide) 4 and the phosphane,<br />

respectively. Carbene 4 can be trapped by Ph3P to give ylide 5. Trying to obtain ylide 5 from Ph3P<br />

and acyl imine 2 we found that under certain conditions the reaction leads to the formation of<br />

difluorophosphorane 6 and carbene 7. The latter can display not only carbene-like but also<br />

biradical-like properties to give dimer 8.<br />

Ylides 3 and 5 can be used as a source of carbene (or nitrile ylide) 4 in different reactions under<br />

mild conditions. However, the interaction of ylide 5 with diaminocarbene 9 did not give the<br />

expected alkene 10, but led to a quantitative transformation into compound 11 which can be<br />

considered as an unsymmetrical dimer of carbene 4. This is the first example of a reaction in which<br />

carbene acts as a catalyst.<br />

Similarly to phosphanes, diaminocarbene 9 can react with acyl imine 2. Although this reaction<br />

should also include the intermediate formation of carbene 4, no traces of its dimer 11 were found in<br />

this case and the only product was alkene 10.<br />

PPh 2<br />

Ph2P Ar N<br />

O<br />

N Ar C(CF<br />

3 4<br />

3) 2<br />

5<br />

C(CF3) 2<br />

Ph 2P<br />

O<br />

1<br />

N Ar<br />

C(CF3) 2<br />

PPh 2<br />

(i-Pr 2N) 2C<br />

9<br />

23<br />

F 3C<br />

Ph3P Ar N<br />

(F3C) 2C<br />

Ph3PF2 6<br />

F<br />

C<br />

i-Pr2N NPr-i2 N N<br />

CF3 F C C F<br />

F3C 2 10 Ar N CF3 11 Mes Mes 8<br />

C<br />

F<br />

C<br />

CF 3<br />

CF 3<br />

F<br />

CF 3<br />

C<br />

O<br />

N<br />

N<br />

N<br />

O<br />

7<br />

Mes O<br />

Mes<br />

CF 3<br />

F<br />

Mes


O-13<br />

SYNTHESIS, OPTICAL PROPERTIES AND REACTIVITIES OF A<br />

DIBENZOPHOSPHABORIN AND ITS DERIVATIVES<br />

Junji Kobayashi, Tomohiro Agou, and Takayuki Kawashima<br />

Department of Chemistry, Graduate School of Science, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku, Tokyo<br />

113-0033, Japan<br />

E-mail: jkoba@chem.s.u-tokyo.ac.jp<br />

π-conjugated molecules with novel electronic and optical properties are desirable for constructing<br />

organic functional materials including organic semiconductors and light emitting devices. Recently,<br />

incorporation of main group elements into π-conjugated systems has been reported as efficient<br />

methodology to decrease HOMO-LUMO energy gaps because of π-conjugation between π-orbitals<br />

and donor or acceptor orbitals on main group elements. Among these classes of molecules,<br />

boron-containing hetero π-conjugated molecules have attracted much attention because of its vacant<br />

2p orbital, which can decrease the LUMO level and respond to external stimuli (i.e. Lewis bases).<br />

Herein we report the syntheses and the properties of a dibenzophosphaborin and its derivatives as<br />

the novel boron-containing hetero π-conjugated molecules.<br />

Dibenzophosphaborin 1 was prepared from 2,2’-dibromotriphenylphosphine by the reaction with<br />

BuLi and subsequent MesB(OMe)2. The phosphorus atom of dibenzophosphaborin 1 maintained its<br />

reactivity as triarylphosphine and 1 was readily led to sulfide 2, selenide 3 and phosphonium salt 4<br />

in good yields. X-ray crystallographic analysis of 1 showed the phosphaborin ring has a<br />

butterfly-shaped structure due to the pyramidalization of the phosphorus atom.<br />

Dibenzophosphaborin 1 showed very weak fluorescence emission with the large Stokes shift. It is<br />

probably because of large structural difference between the ground and excited states as well as<br />

flexibility of the phosphaborin ring of 1. Fluoride binding abilities of 1 and its derivatives 2-4 will<br />

also be presented.<br />

The study was partially supported by the Grant in Aid for the 21st Century COE Program for<br />

Frontiers in Fundamental Chemistry.<br />

24


O-14<br />

PHOSPHINOUS ACID-BORANES:AN EMERGING CLASS OF<br />

ORGANOPHOSPHORUS REAGENT<br />

K. Michal Pietrusiewicz * and Marek Stankevič<br />

Maria Curie-Sklodowska University, Department of Organic Chemistry,ul. Gliniana 33, 20-614 Lublin, Poland<br />

e-mail: michal@hermes.umcs.lublin.pl<br />

Despite the synthetic importance and wide use of derivatives of phosphinous acid-boranes such<br />

as their esters (phosphinite-boranes), or acid chlorides (chlorophosphine-boranes), the parent<br />

phosphinous acid-boranes (1) have, until very recently, remained practically unexplored and have<br />

not been even synthesized on purpose. We have recently demonstrated that phosphinous<br />

acid-boranes can be conveniently obtained by one of the two general synthetic routes utilizing<br />

readily available sec-phosphine oxides or phosphinic acid chlorides as substrates. 1,2 Phosphinous<br />

acid-boranes were then found to possess rich reactivity pattern which offered many useful synthetic<br />

transformations through the reactions at their P, O, or B, reactivity centers. 2,3 When<br />

unsymmetrically substituted they are P-stereogenic and can be readily resolved into enantiomers 3,4<br />

and used subsequently as versatile substrates for the stereoselective synthesis of a wide range of<br />

other nonracemic P-stereogenic compounds. Some examples of the stereoselective conversions of a<br />

model (S)-t-butylpbenylphosphinous acid-borane (1a) into other nonracemic phosphorus<br />

compounds are shown below.<br />

O<br />

O<br />

Ph P<br />

I<br />

t-Bu<br />

49% ee<br />

S<br />

Ph<br />

P<br />

H<br />

t-Bu<br />

~80% ee<br />

P<br />

Ph H<br />

t-Bu<br />

83% ee<br />

BH 3<br />

BH 3<br />

P OH<br />

t-BuPh<br />

(S)-(-)-1a<br />

25<br />

Ph P<br />

Me<br />

t-Bu<br />

100% ee<br />

BH 3<br />

BH 3<br />

BH 3<br />

Ph P<br />

H<br />

t-Bu<br />

100% ee<br />

BH 3<br />

P H<br />

t-BuPh<br />

O<br />

100% ee<br />

t-Bu P<br />

Ph<br />

O S Me<br />

O<br />

Ph P<br />

OMe<br />

t-Bu<br />

100% ee 100% ee<br />

The readily available resolved phosphinous acid-boranes hold thus great promise as the new<br />

enantiopure reagents for stereoselective synthesis of other phosphorus compounds including the<br />

valuable enantiomerically pure phosphines. Further examples will follow.<br />

References<br />

1. Stankevič, M.; Andrijewski, G.; Pietrusiewicz, K. M. Synlett 2004, 311.<br />

2. Stankevič, M.; Pietrusiewicz, K. M. Synthesis 2005, 1279.<br />

3. Pietrusiewicz, K. M.; Stankevič, M. Curr. Org. Chem. 2005, 9, 1883.<br />

4. Stankevič, M.; Pietrusiewicz, K. M. J. Org. Chem., 2007, 72, in print.


O-15<br />

SYNTHESIS OF NEW FUNCTIONALIZED PHOSPHORUS SUBSTITUTED<br />

DERIVATIVES OF 2,6-DI-TERT-BUTYL-4-METHYLPHENOL<br />

A.A. Prishchenko, M.V. Livantsov, O.P. Novikova, L.I. Livantsova, E.R. Milaeva<br />

Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow, 119992, Russia. E-mail:<br />

liv@org.chem.msu.su<br />

Sterically hindered phenols are widely used for preparation of stable phenoxyl radicals and also<br />

are well known antioxidants. We have developed the convenient methods of synthesis of new<br />

functionalized phosphorus substituted derivatives of 2,6-di-tert-butyl-4-methylphenol (ionol) which<br />

are of great interest as perspective antioxidants, chelating ligands and bioactive substances with<br />

various properties. So the phosphonite A and phosphonates B are obtained via smooth addition of<br />

the bis(trimethylsiloxy)phosphine and trimethylsilylphosphites to 3,5-<br />

di-tert-butyl-4-hydroxybenzaldehyde in high yields.<br />

The new diphosphonates C, E and the functionalized phosphinates D, F were synthesized via<br />

interaction of the trimethylsilyl esters of several trivalent phosphorus acids with 3,5-<br />

di-tertbutyl-4-hydroxybenzaldichloride and 3,5- di-tert-butyl-4-hydroxybenzoyl chloride in high<br />

yields.<br />

The compounds A - F easily react with methanol or sodium methylate in methanol yielding the<br />

new water soluble acids or their derivatives as perspective substances.<br />

26


O-16<br />

MICROBIAL DESYMMETRIZATION OF RACEMIC MIXTURE OF<br />

(1-HYDROXYPHENYLMETHYL)PHENYLPHOSPHINATE ETHYL ESTER VIA<br />

OXIDATION OF ONE OPTICAL ISOMER<br />

Magdalena Klimek-Ochab, Ewa Żymańczyk-Duda, Małgorzata Brzezińska-Rodak, Paweł Kafarski and Barbara<br />

Lejczak<br />

Wroctaw University of Technology, Faculty of Chemistry, Department of Bioorganic Chemistry, Wyb. Wyspiańskiego<br />

27, 50-370 Wroclaw, Poland<br />

Biocatalysis has become a valuable tool for the synthetic chemists. Enzymatic transformations<br />

carried out by partially purified enzymes or whole-cell catalysts are used for the production of wide<br />

variety of products, from bulk to fine chemicals 1 . Chemoselectivity, regioselectivity and especially<br />

stereoselectivity of biocatalysts are particularly attractive features of biotransformations, because<br />

they allow obtaining enantiomerically pure compounds.<br />

Organophosphonates are compounds of special interest because of the large scope of their<br />

biological activities 2 . Phosphonic and phosphinic acids derivatives constitute a group of both<br />

biogenic and synthetic compounds with the stable, covalent carbon to phosphorus bond. The<br />

growing demand for enantiomerically pure products has impelled performing microbial resolution<br />

of racemic mixtures of phosphonates 3,4 .<br />

Two yeast strains – Geotrichum candidum and baker’s yeast were applied as biocatalysts for the<br />

resolution of racemic substrate – (1-hydroxyphenylmethyl)phenylphosphinate ethyl ester. The<br />

important feature of substrate used is the presence of two stereogenic centers in molecule. So, in<br />

optically pure form, this compound is very attractive for further application as chiral building block<br />

in chemoenzymatic synthesis. To achieve desired purpose – optically pure products of opposite<br />

configuration – there are at least two approaches of biocatalyst cells preparation. In the first method<br />

both G. candidum and baker’s yeast being under starvation conditions were applied as biocatalysts<br />

for transformation of (1-hydroxyphenylmethyl)phenylphosphinate ethyl ester. The second method<br />

involved incubation of starved yeast’s biomass in the presence of one of chemical agents – sodium<br />

pyruvate, oxalacetic acid and methyl-iso-propyl keton to force the microbial cells to carry out<br />

mostly the reduction of the additives. It implied the oxidation of the dehydrogenases cofactors into<br />

oxidized form e.g. NAD + , FAD. Subsequently after the addition of the hydroxyphosphinate into the<br />

biotransformation media, the expected oxidation of the substrate would be a part of the cofactor<br />

regeneration system which allowed obtaining the reduced form of the dehydrogenases cofactors<br />

(NADH, FADH2). They are the key elements for the metabolic pathways which finally result in<br />

ATP synthesis.<br />

The mixture of the products was analyzed by means of NMR with the addition of quinine as a<br />

chiral discriminator. Microbial transformation resulted in the oxidation of hydroxyl group of one<br />

optical isomer. The product – (1-oxo-phenylmethyl)phenylphosphinate ethyl ester is extremely<br />

unstable in water so the decomposition of this compound shifts the reaction equilibrium into the<br />

product side.<br />

Reference<br />

1 Schmidt A., Dordick J.S., Hauer B., Kiener A., Wubbolts M., Witholt B., 2001, Nature, 409, 258-268.<br />

2 Kafarski P., Lejczak B., 2001, Curry.Med.Chem.-Anti-Cancer Agents, 1, 301-312.<br />

3 Kiełbasiński P., Omelańczuk J., Mikołajczyk, M., 1998, Tetrahedron: Asymm., 9, 3283-3287.<br />

4 Kiełbasiński P., Albrycht M., Łuczak J., Mikołajczyk M., 2002, 13, 735-738.<br />

27


O-18<br />

GUANIDINOPHOSPHAZENES: DESIGN AND SYNTHESIS OF A NOVEL FAMILY OF<br />

UNCHARGED ORGANIC SUPER BASES<br />

Alexander A. Kolomeitsev, 1 Ilmar A. Koppel, 2 Toomas Rodima, 2 Jan Barten, 3 Enno Lork, 1 Gerd-Volker<br />

Röschenthaler, 1 Ivari Kaljurand, 2 Agnes Kütt, 2 Ivar Koppel, 2 Vahur Mäemets, 2 Ivo Leito 2<br />

1 Institute of Inorganic & Physical Chemistry, University of Bremen, D-28334 Bremen, Germany; 2 Department of<br />

Chemistry, University of Tartu, 51014 Tartu, Estonia; 3 Hansa Fine Chemicals GmbH, D-28359 Bremen, Germany<br />

A principle of creating a new generation of nonionic superbases is presented. 1) It is based on<br />

attachment of either tetraalkylguanidino-, 1,3-dimethylimidazolidine-2-imino- or<br />

bis(tetraalkylguanidino)carbimino groups to phosphorus of the iminophosphorane group using<br />

tetramethylguanidine or easily available 1,3-dimethylimidazolidine-2-imine. Seven new nonionic<br />

superbasic tetramethylguanidino-substituted phosphazene bases as well as eight new<br />

phenylsubstituted iminophosphoranes (P2- and P4-bases) and EtP2(pyr) have been synthesized.<br />

Their base strength is established in THF solution by spectrophotometric titration. The gas-phase<br />

basicities of several guanidino- and N',N',N",N"-tetramethylguanidino-substituted (tmg-substituted)<br />

phosphazenes and their cyclic analogues are calculated and the crystal structures of t-BuP1(tmg) and<br />

t-BuP1(tmg)·HBF4 are determined. The new superbases could be used as auxiliary bases in organic<br />

synthesis and as indicators to supplement and significantly extend the basicity scale in THF towards<br />

the more basic region. The enormous basicity-increasing effect of this principle has been<br />

experimentally verified in the case of the tetramethylguanidino-groups in the THF medium: the<br />

basicity increase when moving from t-BuP1(dma) (pKα = 18.9) to t-BuP1(tmg) (pKα = 29.1) is ten<br />

orders of magnitude. A significantly larger basicity increase (up to 20 powers of ten) is expected<br />

(based on the high-level DFT calculations) to accompany the transfer from the same t-BuP1(dma)<br />

base in the gas phase where the three dimethylamino fragments are replaced by methylated<br />

triguanide fragments (tmg)2C=N-. The gas-phase basicity of the resulting base<br />

[(tmg)2C=N-]3P=N-t-Bu is predicted to exceed that of the widely used commercial t-BuP4(dma)<br />

superbase (gas-phase basicity around 300 kcal·mol -1 ).<br />

Reference<br />

1)<br />

A. A. Kolomeitsev, I. A. Koppel, T. Rodima, J. Barten, E. Lork, G.-V. Röschenthaler, I. Kaljurand, A. Kütt, I. Koppel,<br />

V. Mäemets, I. Leito, J. Am. Chem. Soc. 2005, 127, 17656-17666.<br />

28


O-19<br />

PREPARATION AND CHARACTERIZATION OF NOVEL ROOM TEMPERATURE<br />

IONIC LIQUIDS BASED ON QUATERNARY PHOSPHONIUM CATIONS ON<br />

QUATERNARY PHOSPHONIUM CATIONS<br />

C 2H 5<br />

C 4H 9<br />

Katsuhiko Tsunashima and Masashi Sugiya<br />

Nippon Chemical Industrial Co., Ltd.<br />

9-11-1, Kameido, Koto-ku, Tokyo 136-8515, Japan<br />

Ionic liquids, i.e., organic molten salts with melting points below 100 °C, have been developed<br />

for diverse uses such as non-volatile green solvents for organic synthesis, solvent extraction and<br />

separation processes, and new electrolytes in various electrochemical systems based on their unique<br />

physico-chemical properties. Most studies on ionic liquids have been associated with nitrogen based<br />

ionic liquids such as imidazolium, quaternary ammonium, pyridinium, pyrrolidinium salts, etc.<br />

However, phosphonium based ionic liquids have been rarely investigated despite their chemical,<br />

thermal and electrochemical stabilities. We wish here to report the preparation and<br />

physico-chemical properties of novel phosphonium ionic liquids, as a demonstration of a new group<br />

of room temperature ionic liquids (RTILs) used as green solvents for organic synthesis and<br />

separation processes, electrolytic media for electrochemical devices, and others.<br />

Phosphonium ionic liquids presented in this work are based on triethylalkylphosphonium and<br />

tri-n-butylalkylphosphonium cations as shown in Fig. 1. The preparation was followed by aqueous<br />

anion exchange reaction of corresponding tetraalkylphosphonium halides (bromides or iodides)<br />

prepared by nucleophilic addition of trialkylphosphines to haloalkanes in high yields.<br />

Triethylalkylphosphonium based ionic liquids showed lower viscosities and higher electrical<br />

conductivities than tri-n-butylalkyl phosphonium based ionic liquids. Voltammetric analysis of<br />

triethylalkylphosphonium based ionic liquids exhibited wide electrochemical windows (-3.0 to +2.4<br />

V versus Ag/Ag + ). Thermogravimetric analysis also suggested that most phosphonium ionic liquids<br />

prepared were thermally stable up to nearly 400 °C. The relationship between molecular structures<br />

and physical properties of the phosphonium ionic liquids will be discussed.<br />

C 2H 5<br />

P +<br />

C 2H 5<br />

C 4H 9<br />

P +<br />

C 4H 9<br />

R 1 X -<br />

R 2 Y -<br />

R 1 = n-C 5H 11, n-C 8H 17, n-C 12H 25<br />

X = N(SO 2CF 3) 2<br />

R 2 = CH 3, n-C 8H 17, n-C 12H 25<br />

Y = N(SO 2CF 3) 2, BF 4, PF 6, SO 3CF 3<br />

COOCF 3, SO 3C 6H 4CH 3, SCN<br />

Fig.1 Phosphonium ionic liquids prepared.<br />

29


O-20<br />

INVESTIGATING THE MICHAELIS-BECKER REACTION IN PHOSPHONIUM AND<br />

IMIDAZOLIUM IONIC LIQUIDS<br />

Laura K. Byington Congiardo, Ahn Vu, Erika Shaffer, W. David Stegbauer, Robert Hartsock and D. Andrew Knight*<br />

Department of Chemistry, Loyola University New Orleans, 6363 St. Charles Avenue, New Orleans, Louisiana 70118,<br />

USA.<br />

We have been studying carbon-phosphorus bond formation in alternative reaction media such as<br />

water and ionic liquids. The alkylation of secondary phosphites (H-phosphonates) using sodium<br />

metal or sodium hydride as a base proceeds in phosphonium salt ionic liquids such as CYPHOS<br />

IL101 (1). The same reaction in imidazolium based ionic liquids such as [bmim][BF4] (2) can be<br />

achieved using sodium hydroxide as a base and obviates the need for highly reactive bases such as<br />

alkali metals or alkali metal hydrides. Work-up of the reaction is straightforward and involves<br />

removal of alkali metal salts via aqueous extraction and separation of the ionic liquid which can be<br />

recovered and reused. In addition, our procedure does not require the use of an organic solvent<br />

and as such represents a greener version of the classic Michaelis-Becker reaction.<br />

P<br />

1<br />

5<br />

I<br />

30<br />

N N CH3 BF4 2


O-21<br />

A NEW USEFUL SYNTHETIC PATHWAY TO TRIFLUOROMETHYL PHOSPHATES<br />

O. A. Shyshkov, A.A. Kolomeitsev and G.-V. Röschenthaler<br />

Institute of Inorganic & Physical Chemistry, University of Bremen, Leobener Strasse, D-28334 Bremen, Germany<br />

Salts of perfluoroalkyl phosphates are of great interest as ionic liquids [1] which can be used as<br />

stable and innocuous solvents in various green chemistry [2] processes. Moreover, perfluoroalkyl<br />

phosphates attract much attention as non-coordinating anions [3] and therefore can play an important<br />

role in preparation of new highly effective catalysts and creating Li-salt batteries of improved<br />

properties [4] .<br />

Herein, we present convenient multistep one-pot synthesis of trifluoromethyl phosphate salts<br />

starting from trifluoromethyl phosphine. Simple synthetic procedures and workup as well as high<br />

yields of the desired products are the advantages of the method proposed. (CF3)6P¯ ion, the most<br />

interesting object of the investigation, was detected by mass spectroscopy. A fluorine atom was<br />

abstracted from the phosphate ions discussed to give formerly unknown highly reactive<br />

trifluoromethyl phosphoranes.<br />

Reference<br />

[1] N. V. Ignat’ev, U. Welz-Biermann, A. Kucheryna, G. Bissky, H. Willner, J. Fluorine Chem. 2005, 126, 1150-1159.<br />

[2] www.epa.gov/greenchemistry/principles.html<br />

[3] I. Krossing, I. Raabe, Angew. Chem. Int. Ed. 2004, 43, 2066-2090.<br />

[4] Sanyo Electric Co., Japan, JP 2002075441.<br />

[5] T. Umemoto and S. Ishihara, Tetrahedron Lett., 1990, 31, 3579<br />

31


O-22<br />

NEW METHODS, AND STRATEGIES FOR ASYMMETRIC SYNTHESIS OF<br />

ORGANOPHOSPHORUS COMPOUNDS<br />

Kolodiazhnyi O.I., Guliayko, I.V, Gryshkun E.V., Kolodiazhna, A.O., Nesterov V.V., Kachkovskyi G. O.<br />

Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, Murmanskaia 1, Kyiv,<br />

UKRAINE e-mail: oikol123@rambler.ru<br />

The report will highlight one area of our current research in organic phosphorus chemistry<br />

dealing with the development of highly stereoselective methods and reagents and their application<br />

for the preparation of enantiopure organophosphorus compounds.<br />

1) A strategy of multiple stereoselectivity will be illustrated as the effective method for<br />

stereochemical control in the synthesis of organophosphorus compounds. Stereochemical control in<br />

the formation of a stereogenic center is most crucial during fragment assembly for a synthesis of<br />

complex products. Selection of (R)- or (S)-chiral reagents provides a means of enantioselective<br />

control. This strategy of a chiral reagent control via additive effect of several chiral inductors will<br />

be shown on a number of examples. The effect of multiple asymmetric induction in catalytic<br />

processes will be reported. Such developments suggest the possibility of attaining enhanced<br />

stereoselection upon invoking the interaction of several chiral centers in a matched asymmetric<br />

reaction.<br />

A<br />

A'<br />

Favorable attack<br />

A'<br />

A<br />

32<br />

Non-favorable attack<br />

Matched AI Mismatched AI<br />

2) New asymmetric reducing reagents were developed on the base of boranes and accessible<br />

chiral natural compounds (tartaric acid, cinchona alkaloids, some natural amines) and applied for<br />

the preparation of bioactive organophosphorus compounds (phospho-carnitine,<br />

phospho- -amino- -hydroxybutyric acid, phospho-statins, phospho taxoids, and others)<br />

3) On the base of quinine and aminoacids were prepared organocatalysts, which were used to<br />

increase the stereoselectivity of phospha-aldol reaction as well as chiral phase transfer catalysts<br />

used in asymmetric alkylation and phosphorylation reactions.<br />

HO<br />

HO<br />

O<br />

O -<br />

H B H M+<br />

O<br />

O<br />

M= Li, Na, Bu4N Recent references (selected)<br />

1. O.I. Kolodiazhnyi Tetrahedron, 2003, 59, 5953-6018.<br />

2. O.I. Kolodiazhnyi Tetrahedron: Asymmetry 2005, 16, 3295-3340<br />

3. O.I.Kolodiazhnyi Russ Chem Rev 2006, 75, 254-282.<br />

R<br />

A'<br />

H<br />

A<br />

O<br />

H<br />

N


O-23<br />

IMIDOYL CHLORIDES: NEW PROMISING BUILDING BLOCKS IN SYNTHESIS OF<br />

α-AMINOPHOSPHORYL COMPOUNDS<br />

P. P. Onys’ko*, Yu. V. Rassukana, A. A. Sinitsa<br />

Institute of Organic Chemistry, NAS of Ukraine, 02094 Kyiv, 5 Murmans’ka St.<br />

E-mail: onysko@rambler.ru<br />

Interaction of imidoyl chlorides with nucleophilic phosphorus compounds represents a<br />

convenient approach to biologically important acyclic and heterocyclic functionalized derivatives,<br />

containing aminophosphoryl fragments.<br />

O<br />

P<br />

Cl<br />

R N X<br />

N<br />

COOR'<br />

R<br />

N<br />

P H<br />

CH2 =CBrCO2Me 1,3-H<br />

Ar<br />

*<br />

R N R"<br />

R'<br />

P<br />

R N<br />

H<br />

R"<br />

R'<br />

O<br />

X<br />

S P<br />

R<br />

O<br />

1. P<br />

2.HSCH2COOH 1<br />

R<br />

Cl<br />

X=C(O)R'<br />

P<br />

O<br />

N<br />

R'<br />

O<br />

P<br />

X<br />

R<br />

NHY<br />

Y-H<br />

O P<<br />

X<br />

R N<br />

X = RSO2 , R2PO P<br />

R N<br />

O<br />

cycloaddition<br />

R'<br />

III<br />

4<br />

2<br />

*<br />

3<br />

6<br />

5<br />

9<br />

8<br />

7<br />

Y-H: R2P(O)H, ROH, RSH, enamines, electron-rich aromatic and hetroaromatic compounds<br />

Combination of fluoro-(R = Rf) and phosphorus substituents is favorable both for easiness and<br />

stereoselectivity of Н-transfer in phosphorylated azaallylic systems allowing preparation of<br />

fluorinated aminophosphoryl derivatives. The phosphorylation of N-benzylimidoylchlorides (X=<br />

PhCH2) leads to P-C bond formation accompanied by “reagent-free” reduction of C=N bond.<br />

Transformation 1→2→3 represents a new approach in asymmetric synthesis of aminophosphonic<br />

acids. Activated C-phosphorylated imines 7, 8 are promising synthons for the preparation of acyclic<br />

and heterocyclic compounds incorporating aminophosphoryl fragment. Variety of transformations<br />

is connected with possible participation in reactions of C=N bond, halogen atoms or N-substituents.<br />

The regularities found for reactions of imidoyl chlorides with phosphorus compounds form a basis<br />

for purposeful control of their chemoselectivity.<br />

33


O-24<br />

KINETICS AND MECHANISM OF THE OXIDATION OF LOWER OXYACIDS OF<br />

PHOSPHORUS BY MORPHOLINIUM CHLOROCHROMATE<br />

Pradeep K. Sharma<br />

Department of Chemistry, J.N.V. University, Jodhpur 342 005, India<br />

Email: drpkvs27@yahoo.com<br />

Oxidation of lower oxyacids of phosphorus by morpholinium chlorochromate (MCC) in<br />

dimethylsuloxide (DMSO) leads to the formation of corresponding oxyacids with phosphorus in a<br />

higher oxidation state. The reaction exhibits 1:1 stoichiometry. The reaction is first order with<br />

respect to MCC and the oxyacids. The reaction does not induce polymerization of acrylonitrile.<br />

Reactions are catalysed by hydrogen ions. The hydrogen-ion dependence has the form: kobs = a +<br />

b[H + ]. The oxidation of deuteriated phosphinic (DPA) and phosphorous acids (DPPA) exhibited<br />

a substantial primary kinetic isotope effect. The oxidation was studied in nineteen different organic<br />

solvents. The solvent effects were analysed in terms of Taft’s and Swain’s multiparametric<br />

equations. The effect of solvent indicates the solvent polarity plays a major role in the process. It<br />

has been shown that the pentacoordinated tautomer of the phosphorus oxyacid is the reactive<br />

reductant and it has been concluded that tricoordinated forms of phosphorus oxyacids does not<br />

participate in the oxidation process. A mechanism involving transfer of a hydride ion in the<br />

rate-determining step has been proposed.<br />

34


7O-25<br />

FUNCTIONALIZED PHOSPHORYL COMPOUNDS: SYNTHESIS, EXTRACTION,<br />

TRANSPORT AND IONOPHORE PROPERTIES<br />

R.A. Cherkasov, A.R. Garifzjanov, N.S. Krasnova, A.S. Talan, L.A. Burnaeva, G.A. Ivkova<br />

Kazan State University. A.M. Butlerov Chemistry Institute. 420008, Kremlevskaya str., 18, Kazan, Russia<br />

The methods of the synthesis of the mono-, bi- and polyfunctional phosphonates, phosphinates<br />

and phosphinoxydes having an α-, β- and other positions to the phosphoryl group oxygen-,<br />

nitrogen- and sulfur-containing functional group different in their complexing abilities (FPC) were<br />

worked out on the base of classical reactions of the organophosphorus synthesis - Kabachnik –<br />

Fields, Pudovik, Abramov, Todd – Atterton and others.<br />

By use of experimental and theoretical methods acid – basic properties of the obtained FPC and<br />

their distribution constants in interphase systems water – organic solvents are investigated. It were<br />

obtained the quantitative dependence between the distribution constants and quantity of the carbon<br />

atoms in FPC molecules, i.e. their hydropholic – lipophilic balance. On the base of these<br />

correlations was made selection of the metals’ ions, organic and mineral acids potential extractants.<br />

The optimal structure of the organophosphorus extractants as well as conditions of selective<br />

concentrations and separations of precocious metals ’ions from accompanying ions and from each<br />

other are developed.<br />

It was found that efficiency both liquid and membrane – transport extractions of the mineral acids<br />

connected with the hydratation enthalpy of corresponding inorganic acid’s anion as well as of the<br />

structure of the FPC –carrier’s molecule. The correlations between the acids’ transport efficiency<br />

and the nature of the organophosphorus and “additional” coordination centers were established for<br />

the membrane extraction of perchloric, oxalic, tartaric acids and ethanolamine. The phosphinoxydes,<br />

acids of the tetracoordinated phosphorus and FPC with additional hydroxyl- and alkoxy – groups<br />

carriers acid substrates in form of corresponding H-complexes, but in phosphorylated amines<br />

namely nitrogen atom appears as coordination center.<br />

The results obtained are used in the development of the new high-effective ion-selective<br />

electrodes sensitive to ions alkaline and alkali-earth metals, and also the anion – sensitive electrodes<br />

used for the analysis of small amounts of substances in various objects.<br />

Acknowledgments –The work is maintained by RBRF (grant no 04-03-3296) and a joint Russian-American Program<br />

“Basic Research and Higher Education” (grant REC 007)<br />

e-mail: rafael.cherkasov@ksu.ru<br />

35


O-26<br />

INVESTIGATING THE SYNTHETIC POTENTIAL OF<br />

AMINOALKYLFERROCENYLDICHLOROPHOSPHANES<br />

S. Tschirschwitz, P. Lönnecke, E. Hey-Hawkins *<br />

Universität Leipzig, Institut für Anorganische Chemie, Johannisallee 29, D-04103 Leipzig, Germany;<br />

tschirschwitz@chemie.uni-leipzig.de<br />

A series of novel racemic as well as optically pure aminoalkylferrocenyl -dichlorophosphanes has<br />

been prepared through the reaction of phosphorus trichloride with the corresponding<br />

aminoalkylferrocene precursors. These compounds have proven to be versatile starting materials for<br />

several syntheses. The chloro groups can be substituted subsequently and stereoselectivly leading to<br />

diastereomerically pure P-chiral phosphanes which are promising ligands for catalytically active<br />

complexes in homogeneous catalysis. A rather unusual substituent at the phosphorus atom is an<br />

ortho-carbaboranyl group. It could easily be introduced stereoselectively via the reaction of a<br />

monolithiated carbaborane with an aminoalkylferrocenyldichlorophosphane (Figure 1). The<br />

remaining chloro group can also be substituted, for example by alkoxides.<br />

Fig. 1<br />

The aminoalkylferrocenyldichlorophosphanes can be converted into the corresponding primary<br />

phosphanes, which can then be lithiated twice. The generated dilithium phosphanediides crystallise<br />

from THF/hexane as Li12P6 cluster compounds that can be described as closo clusters according to<br />

Wade’s rules.<br />

36


O-27<br />

SYNTHESIS AND REDOX PROPERTIES OF CROWDED DIPHOSPHINES:<br />

APPROACHES TOWARD PHOSPHORUS-PHOSPHORUS INTER-VALENCE CHARGE<br />

TRANSFER SYSTEMS<br />

Shigeru Sasaki, Masatoshi Izawa, Kohji Sasaki, Kiyotoshi Kato, Midori Murakami, Fumiki Murakami, Masaaki<br />

Yoshifuji, and Noboru Morita<br />

Department of Chemistry, Graduate School of Science, Tohoku University, Aoba, Sendai 980-8578, Japan. E-mail:<br />

sasaki@mail.tains.tohoku.ac.jp<br />

Crowded triarylphosphines such as 1 1 have large bond angles around the<br />

phosphorus and are oxidized at low potentials to stable cation radicals. We<br />

synthesized crowded triarylphosphines carrying functional sites such as donors and<br />

acceptors and investigated redox properties andintramolecular interaction between<br />

the phosphorus and the functional sites. 2 Diphosphines carrying crowded<br />

triarylphosphine structures are expected to be two-step redox systems and cation radicals can be<br />

mixed valence or inter-valence charge transfer systems depending on the spacer. We herein report<br />

synthesis and redox properties of crowded diphosphines such as 2 2a and 3.<br />

Analogous nitrogen compounds such as TPD are applied to hole injecting and transporting<br />

materials of electro-optic devices and studied as organic mixed-valence systems.<br />

Crowded diphosphines were synthesized from common key intermediates,<br />

(bromoaryl)phosphines, and redox properties were studied by cyclic voltammetry, EPR, and<br />

UV-Vis-NIR spectroscopies. Diphosphines exhibit reversible two-step redox waves suggesting<br />

formation of stable cation radicals. Detailed study on the oxidation will be presented.<br />

References<br />

[1] Sasaki, S.; Sutoh, K.; Murakami, F.; Yoshifuji, M. J. Am. Chem. Soc. 2002, 124, 14830-14831.<br />

[2] a) Sasaki, S.; Murakami, F.; Murakami, M.; Watanabe, M.; Kato, K.; Sutoh, K.; Yoshifuji, M. J. Organomet.<br />

Chem. 2005, 690, 2664–2672. b) Sutoh, K.; Sasaki, S.; Yoshifuji, M. Inorg. Chem. 2006, 45, 992–998. c) Sasaki, S;<br />

Murakami, F.; Yoshifuji, M. Organometallics 2006, 25, 140–147.<br />

37


O-28<br />

THE ORGANOPHOSPHORUS SULFENYL BROMIDES AS VERSATILE REAGENTS<br />

FOR CYSTEINE DERIVATIVES FUNCTIONALIZATION BY UNSYMMETRICAL<br />

DISULFIDE BOND FORMATION<br />

Mateusz Szymelfejnik, Sebastian Demkowicz, Dariusz Witt, and Janusz Rachon<br />

Department of Organic Chemistry, Chemical Faculty, Gdansk University of Technology, Narutowicza 11/12, Gdansk,<br />

Poland, 80-952. Fax: +48 58 347 2694,<br />

E-mail: rachon@chem.pg.gda.pl<br />

Disulfides are important compounds for both chemical and biological processes. There are many<br />

biologically active peptides and peptide mimetics possess unsymmetrical disulfide bonds.<br />

Disulfides are applied for preparation of self-assembled monolayers (SAMs) and<br />

monolayer-protected clusters (MPCs) with the interesting properties.<br />

The most widely used method of unsymmetrical disulfides formation involves the thioalkylation<br />

of a thiol by derivatives of N-sulfenylphthalimide, N-sulfenamides, (from diethyl azodicarboxylate<br />

DEAD), sulfenyl chlorides, Bunte salts, and 2-pyridyldisulfide (obtained from Aldrithiol). Thiolysis<br />

is favored for the synthesis of unsymmetrical disulfides by above methods, although yields may be<br />

compromised by required long time and rapid thiol-disulfide exchange reactions.<br />

Here, we present a new and versatile synthesis of unsymmetrical disulfides based on the readily<br />

available 5,5-dimethyl-2-thiono-1,3,2-dioxaphosphorinanyl sulfenyl bromide 2 from treatment of<br />

bis-(5,5-dimethyl-2-thiono-1,3,2-dioxaphosphorinanyl) disulfide 1 with bromine at 0℃ The<br />

developed procedure is very rapid (15 min) and proceeds under mild conditions and excellent yields<br />

(90-100%). Cysteine derivatives functionalized at sulfur by unsymmetrical disulfide bond can be<br />

prepared from thiols bearing neutral, aromatic, basic or acidic functionalities with variable length of<br />

carbon chain.<br />

The success of the method depends on the selective reactivity of<br />

5,5-dimethyl-2-thiono-1,3,2-dioxophosphorinanyl-2-disulf nyl derivatives 3 toward protected Cysteine<br />

to afford exclusively unsymmetrical disulfides 4. The observed selectivity emerged from excellent<br />

leaving group property for dithiophosphate anion (pK 2 for corresponding acid). This property is<br />

a<br />

crucial for the short times required for the transformation and minimizes further disulfide exchange<br />

between product 4 and used Cysteine derivative.<br />

In conclusion, a convenient, versatile, functionalization method of Cysteine derivatives by<br />

unsymmetrical disulfide bond formation has been developed. Simple procedure combined with<br />

excellent yields make this method an attractive alternative to other reported procedures.<br />

38


O-29<br />

AMBIDENT ELECTROPHILICITY OF 5-MEMBERED RING PHOSPHATE TRIESTERS<br />

Nissan Ashkenazi,* a Yoffi Segall, a Yishai Karton, a<br />

Sanjio S. Zade b and Michael Bendikov b<br />

a<br />

Department of Organic Chemistry, IIBR-Israel Institute for Biological Research, P.O.Box 19, Ness-Ziona 74100, Israel.<br />

b Department of Organic Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel<br />

Reactions of 2-ethoxy-1,3,2-dioxophospholane 2-oxide (ethyl ethylene phosphate) with various<br />

hard and soft nucleophiles exhibited that this cyclic phosphate triester features ambident<br />

electrophilicity. In general, harder nucleophiles attack on the P center to form the P-O bond<br />

cleavage products, while softer nucleophiles attack on the ring carbon to yield the C-O bond fission<br />

products. Exception to this generality can be found when bulky hard nucleophiles attack on the ring<br />

carbon. In contrast to all other carbanions, which were checked, benzylmagnesium chloride yields<br />

exclusively the C-O bond fission product, probably via a more complexed mechanism.<br />

Ab intio and DFT calculations shed more light on the selectivity of C-O vs. P-O cleavage,<br />

showing that the reactions of 2-alkoxy-1,3,2-dioxophospholane 2-oxide with various nucleophiles<br />

are kinetically controlled, although C-O scission is always the thermodynamically preferred<br />

process.<br />

As no exocyclic bond was cleaved, we may suggest that the 5-memebered ring enhances the<br />

reactivity of not only the P atom, but also of the ring carbon.<br />

EtO<br />

O<br />

P<br />

O<br />

O -<br />

Y<br />

Y -<br />

EtO<br />

O<br />

P<br />

O<br />

39<br />

O<br />

X -<br />

EtO<br />

O<br />

O<br />

P<br />

X<br />

Y= Bn, O-t-Bu, SPh, SEt, PPh 2.<br />

X= H, Me, Et, i-Pr, sec-Bu, cyclopropyl, cyclopentyl, cyclohexyl, Ph, ethynyl, allyl.<br />

O -


O-30<br />

A NEW APPROACH TO THE SYNTHESIS OF PHOSPHORANES ON THE BASIS OF<br />

THE REACTION OF BENZO[D]-1,3,2-DIOXAPHOSPHOLES, HAVING Β- OR<br />

Γ-UNSATURATED GROUP IN SUBSTITUENT, WITH COMPOUNDS CONTAINING<br />

MULTIPLE BONDS<br />

V.F.Mironov 1,2 , L.M.Burnaeva 1 , L.M.Abdrakhmanova 2 , M.N.Dimukhametov 2 ,<br />

Yu.yu. Kotorova 1 , I.V.Konovalova 1<br />

1 Kazan State University, Kremlevskaya Str. 18, Kazan, 420008 Russia<br />

2 A.E.Arbuzov Institute of Organic and Physical Chemistry, Russian Academy of Sciences,<br />

Arbuzov Str. 8, Kazan, 420088, Russia, e-mail: mironov@iopc.knc.ru<br />

It is known that the Р(III) derivatives, containing such a group as NCO, NCS, C≡CR, RC=CR2<br />

bonded with phosphorus, easily react with carbonyl compounds to give various P-heterocycles. The<br />

formation of the intermediate P–C–O – or P–O–C – bipolar ions and the intramolecular attack of<br />

anionic moiety on unsaturated substituent at phosphorus are postulated in these reactions and lead to<br />

the final P-heterocycles. Here we attempted to extend this approach to the relatively stable Р(III)<br />

derivatives (1a-d), containing a substituent not bonded directly with phosphorus. The various types<br />

of phosphoranes (3, 4) were obtained with high regio- and stereoselectivity. The possible pathways<br />

of its formation and crystal structures are discussed. The work is supported by MK-1434.2006.3<br />

program.<br />

O Ph<br />

P O<br />

O<br />

O<br />

O R1<br />

P<br />

O<br />

CF3<br />

O CF3<br />

CCl3CHO, (CF3)2C=O, ArCH=C(COOR)2, ROOCC CCOOR and etc.<br />

Ph<br />

1<br />

O<br />

P O<br />

O<br />

PhCH=N<br />

1a<br />

O<br />

O<br />

or (and) P<br />

X X Z<br />

2<br />

Y Z<br />

Y<br />

3<br />

4<br />

E, Z<br />

1b 1c 1d<br />

P<br />

O P<br />

X=Y<br />

+ C Z<br />

O R<br />

P O<br />

O R<br />

O<br />

O<br />

O<br />

P*<br />

O<br />

CF3<br />

N<br />

* CF3 O<br />

Ph<br />

O O<br />

P<br />

O<br />

Ph<br />

O O<br />

P<br />

O<br />

*<br />

*<br />

O<br />

* Ph<br />

O<br />

CF3 CF3<br />

Me<br />

*<br />

O<br />

*<br />

CF3<br />

O Me<br />

CF3<br />

Me<br />

* O<br />

O<br />

CCl3<br />

O P<br />

*<br />

O<br />

O<br />

*<br />

3a<br />

3d<br />

3b<br />

O Ph<br />

P<br />

* O<br />

* CCl3<br />

* O<br />

O<br />

CF3 CF3 4a<br />

3c<br />

O Ph<br />

*<br />

P O CF3<br />

* O CF3 O<br />

CF3 CF3 4b<br />

References<br />

[1] Pudovik A.N. et al. Synthesis. 1986, (10), 793-804.<br />

[ 2 ] Mironov V.F. et al. Uspekhi Khim. (Rus. Chem. Rev.). 1996, 65(11), 1013-1051.<br />

40


O-31<br />

DIASTEREOSELECTIVE SYNTHESIS OF ENANTIOPURE Α-AMINOPHOSPHONIC<br />

ACIDS DERIVATIVES<br />

Vladimir A. Alfonsov<br />

A.E.Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Centre of the Russian, Academy of<br />

Sciences, 420088, Arbuzov Str., 8, Kazan, Russian Federation. Fax: +7 8432 75 5322. E-mail: alfonsov@iopc.knc.ru<br />

This report is devoted to A.N. Pudovik (1915-2005).<br />

The preparation of enantiopure organophosphorus compounds has been of great interest over the<br />

last few years due to the opportunity to use them as chiral drugs and ligands for design of<br />

homogeneous or heterogeneous catalysts. Rather attractive among these compounds are<br />

α-aminophosphonic acids derivatives due to their well-known biological activity. One of the ways<br />

to the α-aminophosphonic acids derivatives is Pudovik reaction. In this report the use of this<br />

reaction in enantioselective synthesis of aminophosphonates is shortly shown and our own<br />

investigations in this field will be delivered. We have found several new and efficient ways of the<br />

synthesis of cyclic and acyclic aminophosphonic acids derivatives by the reaction of trivalent<br />

phosphorus compounds with β-aldiminoalcohols and iminocarbonic acids. In the case of chiral<br />

initial compounds most of these reactions proceed diastereoselectively that permits to obtain final<br />

products with very high diastereo- and enantiopurity. The essential way for increasing<br />

stereoselectivity of such reactions is the use of cyclisation as stereocontrolling steps.<br />

This work was supported by the Civilian Research and Development Foundation (grant no. RUC2-2638-KA-05) and<br />

the Russian Foundation for Basic Research (grant no. 03-03-33082).<br />

41


O-32<br />

PHOSPHORYLATION OF IMINO ANALOGS OF Α-HALOCARBONYL COMPOUNDS<br />

Yuliya V. Rassukana, Petro P. Onys’ko, Anatoly D. Sinitsa<br />

Institute of Organic Chemistry, NAS of Ukraine, 02094 Kyiv, 5 Murmans’ka St.<br />

E-mail: onysko@rambler.ru<br />

The chemoselectivity of reactions between α-haloimines – compounds containing Hal-C-C=Nskeleton<br />

– and nucleophilic phosphorus derivatives are discussed systematically. The synthetic<br />

potentialities as well as possible mechanistic pathways of this currently developing field of<br />

organophosphorus chemistry are considered. Phosphorylation of the α-haloimines leads mainly to<br />

C- or N-phosphorylated compounds as the final products, the selectivity being dependent on the<br />

type of halogen, substituents at the imine carbon and nitrogen atoms, and on the nature of<br />

phosphorus reagent.<br />

SO 2 R'<br />

N PR 3<br />

E A<br />

R Hal<br />

R'<br />

R Hal E A<br />

N<br />

O<br />

P(OR) 3<br />

E A<br />

R Hal<br />

R Hal<br />

X<br />

N<br />

N P<br />

R R<br />

E A<br />

O<br />

R Hal N X<br />

PR 2<br />

O<br />

E A =R 2 PO<br />

N<br />

42<br />

X<br />

Hal<br />

Hal<br />

O<br />

PR 2<br />

E A<br />

R Hal<br />

P(O)R' 2<br />

N X<br />

P(O)R 2<br />

The main factors controlling regio- and stereoselectivity are elucidated. A series of novel<br />

theoretically and preparatively important transformations are found out, i.e., new diad<br />

rearrangements involving the N→C and C→N transfer of a sulfonyl or a phosphoryl group, the<br />

unusual acylation of the electrophilic imine carbon atom by tervalent phosphorus isocyanates, and<br />

others. Variety of transformations is connected with possible participation in reactions of C=N bond,<br />

halogen atoms or N-substituents. The use of haloimines as versatile building blocks for synthesis of<br />

practically promising functionalized aminophosphonates, bisphosphonates, phosphorus analogs of<br />

dehydro aminoacids, etc., is demonstrated.<br />

N<br />

H<br />

X


O-105<br />

HIGHLY STEREOSELECTIVE AND STEREOSPECIFIC EPOXIDATION OF<br />

2-PHOSPHOLENES AND N-GLYCOSIDES OF PHOSPHA SUGARS AND THEIR<br />

BIOASSAYS<br />

Mitsuji Yamashita, 1* Taishi Niimi, 1 Michio Fujie, 1,2 Valluru Krishna Reddy, 1 Hirono Totsuka, 1 Buchammagari<br />

Haritha, 1 Maddali Kasthuraiah Reddy, 1 Satoki Nakamura, 2 Kazuhide Asai, 3 Takuya Suyama, 1 Gang Yu, 1 Masaki<br />

Takahashi, 3 and Tatsuo Oshikawa 4<br />

1<br />

Department of Nano Materials, Graduate School of Science and Technology, Shizuoka University, Hamamatsu 432-8561, Japan<br />

2<br />

Faculty of Medicine, Hamamatsu University School of Medicine, Hamamatsu 431-3192, Japan<br />

3<br />

Department of Materials Chemistry and Chemical Engineering, Faculty of Engineering, Shizuoka University, Hamamatsu 432-8561,<br />

Japan<br />

4<br />

Department of Materials Chemistry and Biochemistry, Numazu College of Technology, Numazu 410-8501, Japan<br />

tcmyama@ipc.shizuoka.ac.jp<br />

Phospha sugar derivatives are pseudo sugar analogues having a phosphorus atom in the sugar<br />

ring structure represented by Haworth equation. Normal sugars have an oxygen atom in the<br />

hemiacetal ring, and the popular pseudo sugars have a carbon, nitrogen, or sulphur atom, which are<br />

naturally occuring and are called as carba, aza, or thia sugars. These popular pseudo sugars are<br />

well investigated and many of them are known to be biologically active materials. On the other<br />

hand, phospha sugars are not yet found in the nature and the synthesis and characterization of them<br />

are not so well studied.<br />

Previous methodologies for the preparation of phospha sugars used entirely sugar starting<br />

materials, however, we are challenging to develop novel synthetic routes from phosphorus<br />

heterocyclic compounds, mainly, 2- or 3-phospholene derivatives. Here we will report a new<br />

reaction to prepare 2,3-epoxyphospholanes by stereoselective and stereospecific epoxidation of<br />

2-phospholenes with sodium peroxide (1,2) and the reaction of the epoxides with nucleophiles such<br />

as amines for the preparation of N-glycosides of phospha sugar derivatives as well as their<br />

bioassays.<br />

Treatment of 1-phenyl-2-phospholene 1-oxide (1) with sodium peroxide gave erythro<br />

2,3-epoxy-1-phenylphospholane 1-oxide (2) in highly stereoselective and stereospecific manner.<br />

Epoxide 2 as well as the diastereomeric threo epoxide prepared separately by epoxidation with<br />

hydrogen peroxide or via addition reaction of bromine in aqueous medium was converted into<br />

2-amino-3-hydroxy-1-phenylphospholane 1-oxide (3) by the reaction of amines with inversion of<br />

the stereochemistry. Amino derivatives 3 are N-glycosides of phospha sugar derivatives, therefore,<br />

the present epoxide preparation may be an important finding for the phospha sugar chemistry.<br />

Some of phospha sugars and phospholanes prepared were subjected to bioassay to show very<br />

important characters for medicines.<br />

Ph<br />

P<br />

O<br />

Na 2 O 2<br />

Ph<br />

P<br />

O<br />

1 eryhthro 2 threo 3<br />

Reference<br />

[1] Yamashita, M.; Valluru, K. Reddy; Lakonda, N. Rao; Buchammagari, H.; Maeda, M.; Suzuki, K.; Totsuka, H.;<br />

Takahashi,M.; Oshikawa, T. Tetrahedron Lett. 2003, 44, 2339-2341.<br />

[2] Totsuka, H.; Maeda, M.; Valluru, K. Reddy; Takahashi, M.; Yamashita, M. Heterocyclic Commun. 2004, 10,<br />

295-300.<br />

O<br />

43<br />

NHRR'<br />

Ph<br />

P<br />

O<br />

OH<br />

NRR'


O-106<br />

CHIRAL P-HETEROCYCLES: EFFICIENT METHOD FOR THE OPTICAL<br />

RESOLUTION OF 3-METHYL-3-PHOSPHOLENE 1-OXIDES<br />

Tibor Novák, 1 József Schindler, 1 Viktória Ujj, 2 János Deme, 2 Ádám Bódis, 2<br />

Elemér Fogassy 2 and György Keglevich 2<br />

1<br />

Research Group of the Hungarian Academy of Sciences at the Department of Organic Chemical Technology, Budapest<br />

University of Technology and Economics, H-1521 Budapest, Hungary<br />

2<br />

Department of Organic Chemical Technology, Budapest University of Technology and Economics, H-1521 Budapest,<br />

Hungary<br />

The few methods described in the literature on the resolution of phosphorus compounds are based<br />

mainly on the formation of separable diastereomeric salts. A practical procedure for the<br />

enantiomeric resolution of 1-substituted-3-methyl-3-phospholene 1-oxides (1) by separation of the<br />

diastereomeric associations (1·2) formed by interaction with chiral hosts, such as TADDOL<br />

derivatives (2) is described.<br />

P<br />

O Y<br />

1<br />

Y = aryl, alkyl, alkoxy<br />

Ph<br />

Ph<br />

R 1<br />

O<br />

OH<br />

2<br />

44<br />

R 1<br />

O<br />

HO<br />

Ph<br />

Ph<br />

R 1 = Me,<br />

R 1 = Me,<br />

The antipodes of 1-aryl-, 1-alkyl- and 1-alkoxy-3-methyl-3-phospholene 1-oxides (1) were<br />

separated in good yields and in most cases in high enantiomeric excess. The novel procedure seems<br />

to be of general value, as can be applied for the resolution of chiral phosphine oxides and<br />

phosphinates.<br />

Y Ph o-Me-Ph p-Me-Ph Naphthyl Et Pr EtO<br />

enantiomeric<br />

excess [%]<br />

>99 >99 >99 >99 60 95 95


O-107<br />

AIR-STABLE CHIRAL PRIMARY PHOSPHINES<br />

L. J. Higham † , R. M. Hiney ‡ and D. G. Gilheany ‡<br />

† School of Natural Sciences-Chemistry, Bedson Building, University of Newcastle, Newcastle-upon-Tyne, NE1 7RU<br />

‡ School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland<br />

Compounds of phosphorus in the +3 oxidation state have been shown to be incredibly useful and<br />

versatile molecules with medicinal, electronic and catalytic applications. 1 They are used to make<br />

products as diverse as (-)-menthol 2 (the mint flavouring in many foodstuffs) and L-Dopa, a potent<br />

anti-Alzheimer's drug. 3<br />

One potential route to building current and advanced types of these molecules would be to<br />

convert phosphorus hydrogen bonds into other - for instance carbon - bonds using primary<br />

phosphines - RPH2, which possess two such PH bonds. This approach is generally ignored due to<br />

the fearsome reputation of low molecular weight primary phosphines as being molecules that are<br />

spontaneously flammable, occasionally explosive and often toxic. For applications like preparing<br />

chiral pharmaceuticals using catalysis (e.g. L-Dopa) we also need to build in chirality somehow.<br />

In this work we present our discovery 4 of a new class of air-stable, chiral primary phosphine<br />

(CPP), which presents a gateway to many types of phosphorus-containing molecule. We discuss the<br />

origin of their stability, which is unlikely to be due to sterics and is not due to the presence of a<br />

stabilising heteroatom (the only known stabilising forces for RPH2). So what is this stabilising<br />

factor? We also show the first crystal structure of one of our CPPs - the first example of a CPP to be<br />

characterised in this way. The discovery of a chiral molecular framework that stabilises the PH<br />

bond suggests these phosphines will be of significant value as chiral precursors to a whole host of<br />

new ligands in homogeneous catalysis. This will be demonstrated by presenting very recent work<br />

describing novel ligands we have synthesised and preliminary results in catalytic transformations.<br />

Reference<br />

1. K. V. Katti, N. Pillarsetty, K. Raghuraman, Top. Curr. Chem. 2003, 229, 121-141.<br />

2. K. Tani, S. Otsuka et al. J. Am. Chem. Soc. 1984, 106, 5208-5217.<br />

3. W. S. Knowles, Acc. Chem. Res. 1983, 16, 106-112.<br />

4. R. M. Hiney, L. J. Higham, H. Müller-Bunz, D. G. Gilheany, Angew. Chem. Int. Ed. 2006, 45, 7248-7251.<br />

45


P-1<br />

α-IMINOTRIFLUOROETHYL PHOSPHONATE – THE FIRST REPRESENTATIVE OF<br />

C-PHOSPHORYLATED N-H IMINES<br />

A. D. Sinitsa, M. V. Kolotylo, Yu. V. Rassukana, V.V. Pirozhenko and P. P. Onys’ko,<br />

Institute of Organic Chemistry, NAS of Ukraine, 02094 Kyiv, 5 Murmans’ka St.<br />

E-mail: onysko@rambler.ru<br />

The convenient approach to imine 1 – the first representative of previously unknown N-H<br />

iminoalkyphosphonic acid derivatives was elaborated.<br />

CF 3 CN<br />

(EtO) 2 P(O)H<br />

:B<br />

46<br />

O<br />

F 3 C<br />

P(OEt) 2<br />

It is noteworthy that trichloroacetonitrile, CCl3CN, under similar reaction conditions acts as<br />

chlorinating agent, to give mainly chlorophosphate (EtO)2P(O)Cl.<br />

With a few exceptions, N-H imines have been reported as unstable compounds, leading to<br />

difficulties in their isolation 1 . Phosphorylated N-H imine 1 is quite stable at ordinary conditions and<br />

exists as Z/E mixture of stereoisomers; Z isomer: δP –1.4 ppm, 3 JHP 37.2 Hz, δF –69.7 ppm, 3 JFP 1.9<br />

Hz, 4 JFH 1.2 Hz; E isomer: δP –0.7 ppm, 3 JHP 58.2 Hz, δF –72.4 ppm, 3 JFP 1.9 Hz, 4 JFH 0.6 Hz (Z/E =<br />

10:1). Obviously Z-isomer is stabilized by intramolecular P=O…H-bonding. Imidoyl phosphonate<br />

1 can be readily functionalized. In particular, it adds phosphorus-, oxygen- or sulfur-centered<br />

nucleophiles allowing preparation of bisphosphonates or phosphorylated thiazolidones.<br />

F 3 C<br />

O<br />

O<br />

F 3 C<br />

P(OEt) 2<br />

OR<br />

P(OEt) 2<br />

NH 2<br />

NH 2<br />

[H]<br />

ROH<br />

O<br />

F 3 C<br />

P(OEt) 2<br />

N H<br />

1<br />

(RO) 2 P(O)H<br />

1<br />

N H<br />

O<br />

F C 3 O<br />

HSCH 2 CO 2 H<br />

O<br />

S<br />

P(OEt) 2<br />

NH2 N<br />

H<br />

P(OR) 2<br />

O<br />

P(OEt) 2<br />

Reference<br />

[1] F. Gosselin, P.D.O’Shea, S. Roy, R.A. Reamer, Cheng-yi Chen, R.P. Volante., Org. Lett. 2005, 7, 355.<br />

CF 3


P-2<br />

SYNTHESIS OF CALIX[4]RESORCINS, CONTAINING PHOSPHORYL FRAGMENTS<br />

ON THE BOTTOM RIM OF THE MOLECULE<br />

A. R. Burilov, I. R. Kniazeva, Yu. M. Sadykova, M. A. Pudovik, W.D. Habicher, I. Baier, A. I. Konovalov<br />

A.E.Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Centre of the Russian Academy of<br />

Sciences, Arbuzov Str., 8, 420088 Kazan, Russian Federation. Fax: +7 8432 75 5322; Email: pudovik@iopc.knc.ru<br />

Two synthesis methods for calyx[4]resorcins bearing phosphonate groups on the bottom rim of<br />

the molecule were developed. First of them consists of the interaction of phosphorylated acetals<br />

1a-e with resorcin. The reactions were carried out in acid medium to give calixarenes 2a-e<br />

containing dialkoxyphosphoryl fragments. These compounds when isolated are easily hydrolyzed to<br />

calixarenes 3a-e with the elimination of one of the alkoxy groups of the phosphonate fragment. The<br />

compounds 3a-e were isolated and characterized.<br />

4 (RO) 2P(O)CH 2CH(OEt) 2<br />

1a-e<br />

HO OH<br />

+<br />

H<br />

+ 4<br />

-8 EtOH<br />

O<br />

R = Et (a), Pr (b), i-Pr (c), Bu (d); i-Bu (e)<br />

47<br />

HO<br />

CH<br />

CH2 P(OR) 2<br />

OH<br />

+<br />

H (H 2O)<br />

4<br />

-4 ROH<br />

HO<br />

CH<br />

CH 2<br />

O P OR<br />

OH<br />

The second approach is based on the introduction of etoxyvinylphosphonates to the reaction with<br />

resorcin. The interaction of etoxyvinyldichlorophosphonate with resorcin allows one to obtain water<br />

soluble calix[4]resorcine 4, containing four acidic phosphonic fragments on the bottom rim of<br />

calixarene matrix. The use of ethers of ethoxyvinylphosphonic acid in the reaction with resorcin<br />

resulted in the formation of calixarenes 3a-e. The stability of the obtained calixarenes increases<br />

with the increase of alkyl radical length in initial phosphonate. For example, calixarenes with<br />

(С7Н15O)2P(O) or (С12Р25O)2P(O) fragments reveal hydrolytic stability.<br />

4 EtOCH=CHP(O)Cl 2<br />

+<br />

HO<br />

4<br />

OH<br />

HCl<br />

-4 EtOH<br />

R = CH2P(OH)2<br />

2a-e<br />

R R<br />

This study was supported by the Russian Foundation for Basic Research (grant no. 05-03-32136).<br />

O<br />

HO<br />

HO<br />

HO<br />

HO<br />

R<br />

4<br />

R<br />

OH<br />

OH<br />

OH<br />

OH<br />

3a-e<br />

OH<br />

4


P-4<br />

INTERACTION OF 3-ALKYL-2-ALKOXY-1,3,2-OXAZAPHOSPHINANES WITH<br />

ALKYLCHLOROFORMATES<br />

A.E. Shipov, G.K. Genkina, P.V. Petrovskii, T.A. Mastryukova<br />

A.N. Nesmeyanov Institute of Organoelement Compounds RAS, 28 ul. Vavilova, 119991 Moscow, Russian Federation.<br />

E-mail: shipov@ineos.ac.ru<br />

1,3,2-Oxazaphosphinane analogues of phosphoryl formic acid derivatives could be of interest as<br />

biologically active compounds. In this connection the reaction of phosphinanes (1) with alkyl<br />

chloroformates (2) was investigated.<br />

NR 1<br />

P<br />

O<br />

1<br />

OR 2<br />

+<br />

ClCOOR 3<br />

2<br />

R 1 = Pr i<br />

R 1 = Me, Bu, Ph<br />

48<br />

NR 1<br />

3<br />

O<br />

P<br />

O<br />

3<br />

+<br />

COOR 3<br />

4<br />

+<br />

+<br />

NR 1<br />

Cl<br />

4<br />

P<br />

NR<br />

P 2<br />

OR<br />

O<br />

5<br />

1<br />

COOR 3<br />

Cl<br />

OR 2<br />

O<br />

COOR 3<br />

In contrast to the interaction of phosphinanes 1 with haloacetic acid derivatives the reaction<br />

pathway of esters 1 with chloroformates (reaction products and their yields ratio) drastically<br />

depends not only on the structure of the substituents R 2 in ester group but also on the structure of<br />

the substituent R 1 at the nitrogen atom. When R 1 = i-Pr the reaction was found to proceed only with<br />

the formation of two main products of the Arbuzov rearrangement – without (3) and with (4)<br />

opening of the cycle, and yields ratios depended noticeably on the structure of R 2 (according to<br />

NMR 31 P data 3 and 4 ratios are from 94 : 6 for R 2 = Me to 24.5 : 75.5 for R 2 = i-Pr). But when R 1 =<br />

Me, Bu or Ph along with the Arbuzov reaction products 3 and 4 the formation of acyclic<br />

chlorophosphite (5) takes place, besides when R 1 is Me and Ph chlorophosphite 5 becames the main<br />

product of the reaction (the ratio of 5 to 3+4 is 72 : 28) and for R 1 = Bu this ratio is 15 : 85. The<br />

yields ratio between 5 and 3+4 was found to depend also on the polarity of the solvent and<br />

temperature of the reaction. As we suppose the main factor determining the reaction pathway and<br />

yields ratio of products is the steric hindrances at the nitrogen atom. The structure of<br />

chlorophosphites 5 was confirmed by the conversion (without isolation) into phosphorothioates or<br />

phosphoroamidothioates.<br />

Supported by the Russian Foundation for Basic Research (grant No. 05-03-33091).<br />

References<br />

A.E. Shipov, G.K. Genkina, P.V. Petrovskii, T.A. Mastryukova, Russ. Chem. Bull. Int. Ed., 2004, 53, 1996.


P-6<br />

2,2,2-TRIBROMONAPHTHO[2,3-d]-1,3,2-DIOXAPHOSPHOLE: OBTAINING AND<br />

REACTION WITH PHENYLACETYLENE<br />

A.V.Bogdanov, V.F.Мironov, B.I.Buzykin, A.B.Dobrynin, D.B.Krivolapov, А.I.Konovalov<br />

A.E.Arbuzov Institute of Organic and Physical Chemistry, Russian Academy of Sciences, Arbuzov Str. 8, Kazan,<br />

420088, Russia, e-mail: mironov@iopc.knc.ru<br />

The interaction of 2,2,2-trichlorobenzo-1,3,2-dioxaphosphole with arylacetylenes is a versatile<br />

approach to the synthesis of benzo[e]-1,2-oxaphosphorinine derivatives – P-analogues of<br />

biologically important coumarines [1]. Here we report the obtaining of<br />

2,2,2-tribromonaphtho[2,3-d]-1,3,2-dioxaphosphole (1) from 1,2-naphthalenediol, PBr3 and<br />

bromine and its reactions with phenylacetylene. The reaction of phosphole (1) with phenylacetylene<br />

proceeds in several directions (10-15°C).<br />

1<br />

O<br />

PBr3<br />

O<br />

Ph C CH<br />

1<br />

-PBr3, -Br2<br />

1) Ph C<br />

2) H2O<br />

CH<br />

6<br />

OH<br />

O<br />

OH<br />

O P<br />

OH<br />

The first and second pathways include the<br />

formation of heterocycles (2) (2-3 %) and (3)<br />

(20-23 %) after reaction mixture hydrolysis. The<br />

third pathway is the disproportionation of<br />

phosphole (1) with the following bromination<br />

resulting in the formation of phosphoranes (4, 5).<br />

The phosphates (6, 7) were obtained as a result of<br />

hydrolysis. We succeeded in isolation of compound<br />

(3, 7). Phosphate (6) was obtained by the<br />

independent synthesis also. The structure of<br />

2-phenyl-9-(2-dihydroxy<br />

phosphoryl-1-phenylethen-1-yl)naphtho[1,2-d]furane<br />

(3) was confirmed by single crystal X-ray<br />

diffraction. The geometry of molecule (3) (solvate<br />

with DМSО) in crystal is shown in the figure.<br />

49<br />

O O<br />

P<br />

OH +<br />

7<br />

Br<br />

Ph<br />

2 Ph<br />

3 Ph<br />

O<br />

PBr<br />

O 2<br />

Br2<br />

-HBr<br />

O<br />

PBr<br />

O 2<br />

4<br />

5 Br<br />

H2O -HBr<br />

H2O -HBr<br />

S<br />

O<br />

C<br />

C<br />

O 2<br />

O 4<br />

O<br />

OH<br />

O<br />

OH<br />

O P<br />

OH<br />

H<br />

O<br />

P<br />

OH<br />

OH<br />

C2 C3 O1 C4 C5 C6 C8 C7 C23 C9 C12 P1 C10 O3 C11 C13 C16 C<br />

H<br />

15<br />

C18 C14 C17 C22 C<br />

H<br />

3a<br />

C1a C7a C7b H<br />

C 21<br />

C 20<br />

C 19


P-7<br />

SYNTHESIS, CHARACTERIZATION AND APPLICATIONS OF NOVEL<br />

IMINOPHOSPHINITES<br />

Jake Yorke, Sarah K. D. Beaton and Aibing Xia*<br />

Department of Chemistry, Mount Saint Vincent University, Halifax, Nova Scotia, Canada<br />

Unsymmetrical ligands with two or more different donors such as phosphorus and nitrogen<br />

donors (P,N type) have attracted increasing attention due to their bonding versatility and catalytic<br />

applications. We will report the synthesis, characterization and applications of two series of novel<br />

bidentate and potentially hemilabile iminophosphinites, which can be prepared from readily<br />

available starting materials such as aminophenols (Scheme 1) and salicylaldehydes (Scheme 2).<br />

Initial results in Suzuki coupling reactions showed that palladium complexes based on both<br />

iminophosphinites are active catalysts for deactivated bromides such as 4-bromoanisole. The<br />

efficiency of series 2 iminophosphinites is generally better than that of series 1 iminophophinites<br />

under similar conditions.<br />

R<br />

R<br />

R<br />

R<br />

OH<br />

R'2C=O NH 2<br />

R<br />

R<br />

50<br />

R'<br />

OH<br />

R''2PCl DMAP<br />

N R<br />

Scheme 1. Iminophosphinites (1) from aminophenols<br />

OH<br />

R'NH2 O<br />

R<br />

R<br />

2<br />

OH<br />

C<br />

N<br />

R'<br />

R' 2PCl<br />

DMAP<br />

Scheme 2. Iminophosphinites (2) from salicylaldehydes<br />

Submitted by Aibing Xia, Department of Chemistry, Mount Saint Vincent University, Halifax, Nova Scotia, Canada<br />

B3M 2J6<br />

R'<br />

R<br />

R<br />

1<br />

R<br />

R'<br />

2<br />

O<br />

N<br />

C<br />

R'<br />

O<br />

PR'' 2<br />

PR'' 2<br />

N<br />

R'


P-9<br />

SYNTHESIS AND REACTIONS OF PHOSPHAISOCOUMARINS<br />

Ai-Yun Peng*, Bo Wang, Xun Yang<br />

School of Chemistry & Chemical Engineering, Sun Yat-sen University, 135 Xingangxi Lu, Guangzhou, 510275, China<br />

Isocoumarins are a class of naturally occurring lactones that display diverse bioactivities, some<br />

antitumor isocoumarins have especially gained considerable research interests. In contrast, related<br />

reports about their analogues are rare. Since there is a remarkable similarity in bioactivities between<br />

the carbon species and their phosphorus counterparts, one would anticipate that phosphorus<br />

isocoumarin analogs (i.e. phosphaisocoumarins) might have potential bioactivities similar to those<br />

of isocoumarins reported herein. Here we report the results on the synthesis of<br />

phosphaisocoumarins and the investigations of their reactions with acetylene, alkene and Me3SiBr<br />

(Scheme 1).<br />

R 1<br />

R 1<br />

R 1<br />

P(OEt) 2<br />

O<br />

I2,CHCl3 X<br />

P O<br />

O OEt<br />

X = I, Br, Cl<br />

O<br />

R<br />

2 R R2<br />

R 2<br />

R 2<br />

P O<br />

OEt<br />

O<br />

O<br />

1 R P<br />

R P<br />

EtO OH<br />

O OEt<br />

1<br />

NaOH CuI<br />

DMF<br />

NXS, DMF<br />

Pd (II)<br />

R 1<br />

Me 3SiBr<br />

R 1<br />

O<br />

51<br />

R 3<br />

R 2<br />

P O<br />

OEt<br />

O<br />

R<br />

P O<br />

OH<br />

or<br />

R 2<br />

R 1<br />

O<br />

R 2<br />

R 4<br />

R 2<br />

P O<br />

OEt<br />

Scheme 1<br />

These novel synthetic phosphorus heterocycles have showed medium inhibitory activity to<br />

protein tyrosine phosphatase 1B (PTP1B) and good cytotoxicity against the human cancer cells<br />

HepG2 and BGC through the in vitro bioactivity experiments.<br />

Reference<br />

[1] Powers, J. C.; Asgian, J. L.; Ekici, Ö. D.; James, K. E. Chem. Rev. 2002, 102, 4639-4750, and references therein.<br />

[2] Quin, L. D.; A Guidorus Chemistry, e to Organophosph John Wiley & Sons, Inc., New York, 2000, Chapter 11.<br />

[3] Ai-Yun Peng, Yi-Xiang Ding. J. Am. Chem. Soc. 2003, 125, 15006-15007.<br />

[4] Peng, A. –Y.; Ding, Y.-X. Org. Lett. 2004, 6, 1119-1121.<br />

[5] Ai-Yun Peng, Yi-Xiang Ding. Tetrahedran 2005, 61, 10303- 10308.


P-14<br />

NUCLEOPHILIC PHOSPHINE-CATALYZED [3+2] CYCLOADDITION OF<br />

ALLENES WITH N-(THIO)PHOSPHORYL IMINES: FACILE SYNTHESIS<br />

OF SUBSTITUTED 3-PYRROLINES<br />

Bo Zhang, Zhengjie He *<br />

The State Key Laboratory of Elemento-Organic Chemistry, and Department of Chemistry, Nankai University, Tianjin<br />

300071, China<br />

In recent years, carbon-carbon bond-forming reactions catalyzed by nucleophilic phosphine have<br />

attracted much attention1,2. One of these kinds of reactions is the cycloaddition reaction of allenes<br />

with imines, forming 4-, 5-, or 6-membered N-heterocycles3. Due to the importance of these<br />

N-heterocyclic compounds in the organic synthesis and pharmaceuticals, the relating reaction has<br />

been extensively studied. Aryl substituted N-tosyl imine compounds were most commonly used for<br />

the reaction for their better reactivity, giving N-tosyl heterocycle products. However, since tosyl<br />

group is not easy to be removed under mild conditions, therefore in most cases, products have been<br />

reported as N-tosylated ones. Few attempts were successful in giving corresponding deprotected<br />

N-heterocycles but other new products, even if much easy-removed sulfonyl groups like Nosyl and<br />

2-trimethylsilylethanesulfonyl were used3c.<br />

As part of our research on nucleophilic phosphine-catalyzed carbon-carbon bond-forming<br />

reactions4, we herein report the preliminary results on the cycloaddition reaction of allenes with<br />

N-(thio)phosphorylated imines. The cycloaddition reaction was catalyzed by an air stable<br />

trialkylphosphine PTA (1,3,5-triaza-7-phosphaadmantane), and afforded [3 + 2] cycloaddition<br />

products N-(thio)phosphoryl 3-pyrrolines with good yields, which were smoothly deprotected<br />

through HCl-mediated acidic methanolysis to 3-pyrrolines. Thus, a facile synthesis for substituted<br />

3-pyrrolines is established.<br />

R 1<br />

+ N<br />

EWG<br />

R2 P PTA<br />

P<br />

N R<br />

EWG<br />

2<br />

R1 52<br />

HCl<br />

CH 3OH<br />

R 1<br />

H<br />

N<br />

R 2<br />

EWG<br />

R 1 = Alkyl, H, Phenyl; R 2 = Aryl; P = P(S)(OEt) 2, P(S)Ph 2, P(O)(OEt) 2; EWG = CO 2Et<br />

Acknowledgment: The authors gratefully acknowledge financial support for this study from the National Natural<br />

Science Foundation of China (Grant No. 20421202; 20672057).<br />

References<br />

1. X. Lu, C. Zhang, Z. Xu, Acc. Chem. Res. 2001, 34, 535-544.<br />

2. J. L. Methot, W. R. Roush, Adv. Synth. Catal. 2004, 346, 1035-1050.<br />

3. For recent examples, see: a) X.-F. Zhu, J. Lan, O. Kwon, J. Am. Chem. Soc. 2003, 125, 4716-4717; b) G.-L. Zhao,<br />

4. M. Shi, J. Org. Chem. 2005, 70, 9975-9984; c) X.-F. Zhu, C. E. Henry, O. Kwon, Tetrahedron 2005, 61,<br />

6276-6282.<br />

5. Z. He, X. Tang, Y. Chen, Z. He, Adv. Synth. Catal. 2006, 348, 413-417.


P-17<br />

DISELENOPHOSPHATES: SYNTHESIS, REACTION WITH ELECTROPHILES,<br />

AND P-Se BOND CLEAVAGE<br />

Chen-Wei Liu<br />

Department of Chemistry, National Dong Hwa University, Hualien 974, Taiwan<br />

Fax: 886-3-8633570, E-mail: chenwei@mail.ndhu.edu.tw<br />

Dialkyl diselenophosphates, Se2P(OR)2 - , abbreviated as dsep can be prepared in good yields by<br />

reacting P2Se5 with various alcohols, and isolated as ammonium salts. The central phosphorus atom<br />

adopts tetrahedral structure, proved by single crystal X-ray diffraction analysis. Se of dsep ligand, a<br />

good nucleophile,which can react with acyl chloride to form (1), can also react with propargyl<br />

bromide to form (2). Compound (3) (scheme 1) can be obtained by performing Michael addition<br />

reaction using dsep ligand and but-3-en-2-one as reactants. Interestingly, a rare selenophosphito<br />

moiety of iron, CpFe(CO)2P(Se)(OR)2 (4), was obtained by treatmenting dsep ligands with<br />

[CpFe(CO)2]2 in refluxing toluene (scheme 2). The observed selenophosphito fragment in (4)<br />

clearly suggests that P-Se bond cleavage can occur in the process of thermal reaction of<br />

[CpFe(CO)2]2 with phosphor-1,1-diselenolates. The novel reagent, (4), finally exhibits not only<br />

coordination properties at Se center by forming heterometallic clusters but also reactivity at Se-site<br />

towards C-based electrophiles.<br />

Scheme 1<br />

Scheme 2<br />

NH 4Se 2P(O i Pr) 2<br />

OC<br />

Fe<br />

O<br />

C<br />

C<br />

O<br />

Fe<br />

CO<br />

O<br />

CH2Cl2, N2, RT,8hr<br />

CH3COCl CH2Cl2, N2, RT, 1hr<br />

HC CCH2Br<br />

CH 2Cl 2, N 2, RT,1hr<br />

RO<br />

+ P<br />

RO<br />

Se<br />

Se<br />

53<br />

O<br />

O<br />

Se<br />

P<br />

Oi O<br />

Pr<br />

iPr (3)<br />

Se<br />

Se<br />

Se<br />

Se<br />

P<br />

Se<br />

O i Pr<br />

P<br />

O i Pr<br />

OiPr (2)<br />

O i Pr<br />

(1)<br />

Toluene<br />

Fe<br />

110<br />

OC<br />

OC<br />

o Se<br />

(4)<br />

C, 4 h P<br />

OR<br />

RO


P-23<br />

TRICYCLES SYNTHESIZED BY THE REACTION OF PCl5 WITH<br />

OPEN-CHAINED MOLECULES<br />

Ferdinand Belaj<br />

Institut für Chemie, Karl-Franzens-Universität Graz, Schubertstr. 1, Austria. E-mail: ferdinand.belaj@uni-graz.at<br />

The tricyclic reaction products of PCl5 with two open-chained molecules containing C=O and<br />

NH2 groups are characterized by single-crystal structure determinations: The reaction of oxamide<br />

with PCl5 [1] resulted in the symmetric compound (I) formed by a ring closure reaction followed by<br />

a [2+2] cycloaddition:<br />

The reaction of glutamic acid with PCl5 takes a completely different course and the hitherto<br />

unknown unsymmetric compound (II), a derivative of the dipeptide cyclo(prolyl-proline), was<br />

formed repeatedly:<br />

Obviously, no phosphorus atoms were incorporated in a ring closure reaction and PCl5 acts<br />

mainly as a dehydrating agent. The crystal structure determinations were performed at low<br />

temperature: Compound (I) has two half molecules in the asymmetric unit and shows almost planar<br />

tricycles arranged around centers of symmetry. The molecules of compound (II) lie on general<br />

positions.<br />

Reference<br />

[1] M. Becke-Goehring, Z. Anorg. Allg. Chem. 373: 245-257 (1970).<br />

54


P-24<br />

MONODENTATE SPIRO PHOSPHONITES: HIGHLY EFFICIENT LIGANDS FOR<br />

ASYMMETRIC HYDROGENATION OF NON-ACYLATED ENAMINES<br />

Guo-Hua Hou, Shou-Fei Zhu, Jian-Hua Xie, Qi-Lin Zhou*<br />

State Key Laboratory and Institute of Elemento-organic Chemistry, Nankai University Tianjin 300071, China<br />

In last few decades, the catalytic asymmetric hydrogenation of N-acylated enamines such as α-<br />

and β-N-acylamino acrylates, and enamides have been extensively studied, providing a highly<br />

enantioselective and convenient method for the synthesis of enantiomer-enriched primary and<br />

secondary amine derivatives. However, only a limited progress has been achieved in the direct<br />

preparation of chiral tertiary amines, which broadly occurred in biologically active molecules and<br />

natural products, by asymmetric hydrogenation of the simple N,N-dialkylenamines. Recently, we<br />

have synthesized a new type of phosphonite ligands containing a chiral 1,1′-spirobiindane scaffold.<br />

In this presentation we will report their application in Rh-catalyzed asymmetric hydrogenation of<br />

non-acylated enamines such as N,N-dialkylenamines, providing the corresponding chiral tertiary<br />

amines in high yields and excellent enantioselectivities (up to 99.9% ee).<br />

Ar 1<br />

N<br />

OH<br />

HO<br />

RPCl 2, Et 3N<br />

THF, rt, 1h<br />

(S)-SPINOL (S)-1<br />

Ar 2<br />

55<br />

O<br />

P<br />

O<br />

R<br />

H2 (10 atm)<br />

[Rh] (1 mol%) / (S)-1c (2.2 mol%)<br />

I 2 (2 mol%), HOAc (20 mol%), THF, rt<br />

a: R = Me<br />

b: R = i Pr<br />

c: R = t Bu<br />

d: R = Ph<br />

2 3 (up to 99.9% ee)<br />

Acknowledgment: We thank the National Natural Science Foundation of China, and the Ministry of Education of China<br />

for financial support.<br />

References<br />

(1) Lee, N. E.; Buchwald, S. L. J. Am. Chem. Soc. 1994, 116, 5985.<br />

(2) Tararov, V. I.; Kadyrov, R.; Riermeier, T. H.; Holz, J.; Börner, A. Tetrahedron Lett. 2000, 41, 2351.<br />

(3) Hou, G.-H.; Xie, J.-H.; Wang, L.-X.; Zhou, Q.-L. J. Am. Chem. Soc. 2006, 128, 11774.<br />

Ar 1<br />

N<br />

*<br />

Ar 2


P-25<br />

MICROWAVE-ASSISTED SYNTHESIS IN ORGANOPHOSPHORUS CHEMISTRY<br />

György Keglevich, Melinda Sipos, Anna Szekrényi, Eszter Dudás,<br />

Daniella Takács and Emília Hohmann<br />

Department of Organic Chemical Technology, Budapest University of Technology and Economics<br />

H-1521 Budapest, Hungary<br />

In the last decade, microwave (MW)-assisted accomplishment of syntheses has become<br />

widespread. We made use of MW irradiation in organophosphorus chemistry. First, the<br />

phospha-Mannich condensation of secondary amines, paraformaldehyde and >P(O)H species<br />

including P-heterocycles to afford aminomethylene-P(O)< derivatives was studied under MW and<br />

solventless conditions.<br />

O<br />

NH + (CH 2O) n + HP<br />

56<br />

MW<br />

O<br />

N CH 2 P<br />

Only in a part of the phospha-Michael reaction studied by us was the MW technique useful.<br />

The Diels-Alder cycloaddition of 1,2-dihydrophosphinine oxides with dienophiles was, however,<br />

highly promoted by MW irradiation, again in a solvent-free accomplishment. The<br />

2-phosphabicyclo[2.2.2]octene oxide derivatives were obtained in excellent yields.<br />

Cl<br />

Y<br />

O<br />

P<br />

Me<br />

CO 2Me<br />

CO 2Me<br />

CO 2Me<br />

CO 2Me<br />

MW<br />

Cl<br />

P<br />

O Y<br />

Me<br />

Y= aryl, alkyl, alkoxy<br />

O<br />

O<br />

MW<br />

N Ph<br />

Cl<br />

Y<br />

O<br />

P<br />

Et<br />

H<br />

O<br />

H<br />

N<br />

O Ph<br />

The inverse Wittig reaction of 1-trialkylphenyl cyclic phosphine oxides and dialkyl<br />

acetylenedicarboxylate results in the formation of the corresponding β-oxophosphoranes. The novel<br />

reaction is, however, rather slow as the completion requires 10 days at 150 °C. Application of MW<br />

without the use of any solvent brought a real breakthrough, as there was a 80-fold acceleration<br />

beside the much better efficiency. Moreover, aryl derivatives otherwise unreactive under traditional<br />

heating could also be involved in the reaction under discussion.<br />

P<br />

Ar O<br />

+<br />

CO 2R<br />

CO 2R<br />

Ar= 2,4,6-trialkylphenyl<br />

R= Me, Et<br />

MW<br />

Ar<br />

P<br />

CO 2R<br />

O CO 2R


P-30<br />

SYNTHESIS AND PROPERTIES OF PENTACOORDINATE PHOSPHORUS<br />

COMPOUNDS CONTAINING A PENTACOODINATE SILICON ATOM<br />

Hideaki Miyake, Naokazu Kano, and Takayuki Kawashima<br />

Department of Chemistry, Graduate School of Science, The University of Tokyo<br />

7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan<br />

Pentacoordinate phosphorus compounds have been vigorously studied because of their interesting<br />

structures and reactivities. A silicon atom can also be a pentacoordinate state and pentacoordinate<br />

silicon compounds have structures and reactivities similar to those of phosphorus analogues.<br />

Although compounds bearing both pentacoordinate phosphorus and silicon atoms are attractive due<br />

to their having two reactive sites, to the best of our knowledge, such a compound has never been<br />

reported. We previously reported synthesis of various phosphoranes and silicates by taking<br />

advantage of the Martin ligand which was known to stabilize effectively the pentacoordination<br />

states. Here we report syntheses and properties of several compounds bearing both pentacoordinate<br />

phosphorus and silicon atoms which are stabilized by the Martin ligands.<br />

Reaction of phosphoranide 1 and silane 2, both of which bore two Martin ligands, in THF gave<br />

compound 3a bearing both pentacoordinate phosphorus and silicon atoms bridged by the<br />

ring-opened THF unit. The structure was identified by the NMR and mass spectra. Compound 3a is<br />

the first example of a phosphorane bearing a pentacoordinate silicon atom.<br />

Analogous compounds 3b–d, which had shorter methylene chains than 3a, were synthesized by<br />

another method. Their detailed synthetic procedures, multinuclear NMR spectra of 3a-d and some<br />

of their reactions will also be discussed.<br />

57


P-31<br />

SYNTHESIS OF A NOVEL APICAL–EQUATORIAL–EQUATORIAL TYPE<br />

TRIDENTATE LIGAND AND CONSTRUCTION OF PENTACOORDINATE<br />

PHOSPHORUS COMPOUNDS<br />

Hideaki Yamamichi†, Shiro Matsukawa§, Yohsuke Yamamoto*,†<br />

† Department of Chemistry, Graduate School of Science, Hiroshima University<br />

1-3-1, Kagamiyama, Higashi-hiroshima 739-8526, Japan<br />

§ Institute for Advanced Materials Research, Hiroshima University<br />

1-3-1 Kagamiyama, Higashi-hiroshima 739-8530, Japan<br />

A new tridentate ligand precursor 1,1-bis(2-iodophenyl)-2,2,2-trifluoroethanol (1), which can<br />

bind an apical position and two equatorial positions of pentacoordinate trigonal bipyramidal (TBP)<br />

structure rigidly, was prepared. Phosphine sulfides cis- and trans-3a were isolated from O-protected<br />

bidentate ligand 2 in 29 and 31%, respectively. On the other hand, trans-3b was prepared as a single<br />

stereoisomer. Phosphoranes bearing the tridentate ligand and a fluorine atom 4a and 4b were<br />

prepared from 3a and 3b, respectively. It is interesting that both cis- and trans-3a gave the same<br />

product 4a.<br />

The structure of 4b was confirmed by the X-ray analysis. The more electronegative fluorine atom<br />

was located at the apical position in the TBP structure (P–F length: 1.6513(10) Å).<br />

The upfield-shifted 31P NMR signals and large coupling constants of 4a ( <br />

–46.2 ppm (d, 1JF–P<br />

= 743 Hz)) and 4b ( <br />

–38.6 ppm (d, 1JF–P = 747 Hz)) in CDCl3 suggested that these compounds<br />

have a pentacoordinate structure with a covalent P–F bond even in solution. A phosphorane bearing<br />

an apical SMe group was also prepared.<br />

58


P-34<br />

THE CATALYTIC RING-CLOSURE REACTION IN THE PRESENCE OF<br />

PHOSPHOROUS OXYCHLORIDE<br />

Hui Wang,Renzhong Qiao<br />

College of life science and technology, Beijing University of Chemical Technology, 100029 P. R. China<br />

On the basis of many literatures and patents [1] , ramifications of s-triazolo[3,4-b]<br />

-1,3,4-thiadiazoles have displayed many biological and physiological activities, including<br />

antiphlogistic, analgesic, antibacterial, antifungal, anti-tumor, antianxity, insecticidal, herbicidal,<br />

and plant-growth regulating activities. Consequently, such kinds of compounds are extensively<br />

studies in recent years. 3-aryl-4-amino-5-thione-1,2,4-Triazoles [2] (1) and 6- substituted-4-<br />

hydroxylnicotinic acids(2) were prepared as results of multistep reactions, the ring-closure of the<br />

two compounds above in the presence of phosphorus oxychloride gave a series of compounds,<br />

namely 3-aryl-6-(6-substituted-4chloropyridine-3-yl)-s-triazolo[3,4-b] -1,3,4-thia- diazoles(3),<br />

whose structures have been established by MS, IR, 1 H NMR spectra. The reaction was carried out<br />

for 6 to 8 hours when being refluxed with phosphorus oxychloride. During the process, the presence<br />

of phosphorus oxychloride is necessary since it can activate the carbonyl of -COOH in 2a-2b,<br />

enhance its electrophilic ability and improve the pericyclic reaction [3] , and also serve as appropriate<br />

solvent. The process is displayed as below:<br />

R1<br />

N N<br />

OH<br />

R1<br />

N<br />

NH2 SH<br />

+ R2<br />

N<br />

COOH<br />

POCl3<br />

relfux<br />

N<br />

N<br />

N<br />

S<br />

N<br />

1 2 3<br />

R1: a. H; b. 2,4-OCH3 R2: a. H ; b. 6- CH3<br />

Synthesis of 3-aryl-6-(6-substituted-4chloropyridine-3-yl)-s-triazolo[3,4-b]-1,3,4-thiadiazole<br />

Keywords: 1,2,4-triazolo[3,4-b]-1,3,4-thiadiazole; phosphorus oxychloride; Synthesis<br />

REFERENCES<br />

[1] ZHANG Zi-Yi, SUN Xiao-Wen. Heterocycles [J], 1998, 48: 561_584<br />

[2] Reid J. R. , Heindel N. D. . J. HeterocyclicChem. [J], 1976, 13: 925_926<br />

[3] Pant M. K. , Durgapal R. , Joshi P. C. . Indian J. Chem. [J], 1983, 22B: 712_713<br />

59<br />

Cl<br />

N<br />

R2


P-35<br />

DITHIOPHOSPHORYLATION OF CYCLIC MONOTERPENES<br />

Il’yas S. Nizamov 1, 2, Artiem V. Sofronov1, Rafael A. Cherkasov1, Liliya E. Nikitina3<br />

1 Kazan State University, Kremlievskaya Str., 18, Kazan, 420008, Russia,<br />

Email: Ilyas.Nizamov@ksu.ru Ilyas.Nizamov@ksu.ru<br />

2 A.E. Arbuzov Institute of Organic and Physical Chemistry, Arbuzov Str., 8, Kazan, 420088, Russia,<br />

3 Kazan State Medical University, Butlerov Str., 49, Kazan, 420012, Russia<br />

There is a considerable interest in derivatives of cyclic monoterpene series compounds containing<br />

functional groups due to their possible use as biological activity substances. The importance of<br />

these compounds is also related to their skeleton structure transformations. O,O-Dialkyl<br />

dithiophosphoric acids have been reported to react with terpenes such as -pinene and dipentene at<br />

100-200 o C with the formation of additives for lubricants [1, 2]. We assumed that the initial<br />

products obtained in these patent works undergo decompositions under severe conditions used. We<br />

have carried out the reactions of dithiophosphoric acids with such terpenes as racemic camphene,<br />

(+)-limonene, (1S)-(-)- -pinene and 3-carene under milder conditions and search appropriate<br />

catalysts of addition reactions. We have found that these reactions occur at room temperature for<br />

1-3 h in the presence of catalytic amounts of anhydrous ZnCl2 to yield adducts formed in<br />

accordance with Markovnikow’s rule. In the case of camphene the adduct formation is accompanied<br />

by skeleton transformation into norbornane structure.<br />

S<br />

(RO)<br />

2<br />

PSH +<br />

ZnCl 2<br />

(1 %)<br />

20 o C, 1-2 h<br />

S-P(OR)<br />

2<br />

R = Et, Pr-i<br />

The reactions O,O-dialkyl dithiophosphoric acids with (+)-limonene proceed with the participation<br />

of the exocyclic C=C bond.<br />

S<br />

(RO)<br />

2<br />

PSH +<br />

ZnCl 2<br />

(1 %)<br />

20 o C, 2-3 h<br />

60<br />

S<br />

S<br />

S-P(OR) 2<br />

R = Et, Pr-i<br />

The reactions studied are facilitated by Lewis acid cataysts (NiCl2, CuCl, CuCl2, FeCl3,<br />

BF3.Et2O, AlCl3). The reactions of O,O-dialkyl dithiophosphoric acids with (1S)-(-)- -pinene can<br />

also be performed non-catalytically.<br />

References<br />

[1] Pat. US 2611728 (1952). / Barlett J.H., Rudel H.W., Cyphers E.B., Chem. Abstr. 1953, 43, 2930a.<br />

[2] Pat. US 2665295 (1954). / Augustine F.B., Chem. Abstr. 1954, 48, 12807f.


P-36<br />

BACKGROUNDS FOR THE TECHNOLOGY FOR THE PREPARATION OF<br />

ORGANOPHOSPHOROUS PRECURSORS<br />

Magdeev I.M., Budnikova Yu.H., Muslinkin A.A., Nabiullin V.N., Berdnik I.V.<br />

A.E. Arbuzov Institute of Organic and Physical Chemistry, Russian Academy of Sciences, Arbuzov str. 8, Kazan,<br />

Russia, 420088. E-mail: magdeev@iopc.knc.ru<br />

Simple and effective techniques for the synthesis of methylolphosphonous,<br />

bis(methylol)phosphinic and chloromethylphosphonic acids, their chlorine anhydrids, phosphonates<br />

and phoshinates, possessing great synthetic potential, are elaborated.<br />

New directions of electrochemical synthesis of tertiary phosphines and phosphates from the<br />

elemental white phosphorus are suggested. The existing industrial technology of synthesis of<br />

phosphorus compounds is based on the use of chlorine and chloride of phosphorus, thus causing<br />

serious environmental problems and defining basic expenses of manufacture. Electrochemical<br />

single-stage method was developed for preparation of phosphorus compounds, such as tertiary and<br />

primary phosphines, trialkyl phosphates, including trioctylphosphate, phosphorous and<br />

hypophosphorous acid etc. These products find applications as softeners, additives to lubricant oils<br />

and liquid fuel, additives to polymers providing fire-resistance, and also as extracting agents,<br />

complexing agents as well as precursors for synthesis of other substances for practical purposes.<br />

61


P-37<br />

SYNTHESIS OF 1,2-AZAPHOSPHETIDINES WITH AMINO ACID FRAGMENT<br />

Inga M.Aladzheva, Olga V.Bykhovskaya, Pavel V.Petrovskii, Tatyana A.Mastryukova<br />

A.N.Nesmeyanov Institute of Organoelement Compounds Russian Academy of Sciences, Vavilov str., 28, Moscow<br />

119991, GSP-1, Russia, E-mail:shipov@ineos.ac.ru<br />

Very few 1,2-azaphosphetidines are known in spite of the great interest to their 2-oxo derivatives<br />

which are close structural analogues of azetidinones (β-lactams). Here we report a short synthetic<br />

route to 2-oxo 1,2-azaphosphetidines with amino acid fragment 3 via intramolecular alkylation of<br />

N-2-haloethyl amidophosphites 1. Two diastereomeres of compound 3 (R=Me) were obtained. By<br />

intramolecular alkylation of aminophosphines 2, hitherto almost unknown 1,2-azaphosphetidinium<br />

salts 4 were synthesized.<br />

R 2PN<br />

CH 2CH 2Cl<br />

CHR 1 COOMe<br />

1, 2<br />

R=EtO (1), Ph (2)<br />

R 1 =H, Me<br />

Δ<br />

R=EtO<br />

-EtCl<br />

R=Ph<br />

EtO<br />

O<br />

P<br />

Ph 2P<br />

CHR 1 COOMe<br />

N<br />

3<br />

CHR 1 COOMe<br />

N<br />

4<br />

Cl<br />

62<br />

1. 6N HCl, Δ<br />

2.<br />

O<br />

1. 6N HCl, Δ<br />

2. O<br />

O<br />

O<br />

P<br />

OH<br />

CH 2CH 2NH 2CHR 1 COOH<br />

5<br />

CH 2CH 2NH 2CHR 1 COO<br />

2-Oxo-1,2-azaphosphetidines 3 readily hydrolyzed with the P-N bond cleavage; as a result of the<br />

total hydrolysis, the derivatives both of β-aminophosphonic and α-amino carbon acids 5 with<br />

potential biological activity were produced. The total hydrolysis of 1.2-azaphosphetidinium salts 4<br />

resulted in the N-(2-diphenylphosphoryl)ethyl amino acids 6, potential complexing agents for<br />

metals of biological interest (Cu, Co, Ni etc).<br />

The work was supported by Russian Foundation for Basic Research (grant No. 05-03-3309).<br />

Ph 2P<br />

O<br />

6


P-38<br />

ASYMMETRIC SYNTHESES OF NEW PHOSPHONOTAXOIDS<br />

Irina V. Guliaiko, Oleg I. Kolodiazhnyi<br />

Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine<br />

Murmanskaia 1, Kyiv, UKRAINE e-mail: oikol123@rambler.ru<br />

The multiple asymmetric induction (multistereoselectivity) is an efficient method for increasing<br />

the stereoselectivity of the phospho-aldol reaction by employing more than one chiral auxiliary. For<br />

example chiral dialkylphosphites react with chiral aldehydes under the control by two chiral<br />

auxiliaries, which reinforced one another, to yield the diastereomers 2 with very good de. Chiral<br />

aldehydes 1 reacted with the (1R,2S,5R)-dimenthylphosphite or di-endo-bornylphosphite with the<br />

formation of either chiral (1S,2S)- or (1R,2S)-1-hydroxy-2-aminophosphonic acids 4. The reaction<br />

of dibenzylphenylalanynal 1 with tris(trimethylsilyl)phosphite afforded the<br />

(1R,2S)--hydroxy- aminoalkylphosphonic acid 5, which was purified by recrystallisation. The<br />

stereoselectivity of the reaction depended on the solvent, the nature of the bases and temperature.<br />

The absolute configuration of the addition product was proved by NMR spectroscopy and X-ray<br />

analysis<br />

Ph<br />

(R*O) 2 POH<br />

OH<br />

NBn 2<br />

2<br />

H 3 O +<br />

Ph<br />

DBU<br />

P(O)(OR*) 2<br />

OH<br />

NBn 2<br />

(1S,2S)-4<br />

Ph<br />

P(O)(OH) 2<br />

NBn 2<br />

1<br />

63<br />

O<br />

P(OSiMe) 3<br />

OH<br />

(Me SiO) P(O)<br />

3 2 Ph<br />

NBn2 1) Crystallization<br />

2) H3O +<br />

3<br />

OH<br />

(HO) 2P(O) Ph<br />

NBn 2<br />

(1R,2S)-5<br />

R*= (1R,2S,5R)-Mnt (80% ee), Brn (80% ee)<br />

The chiral 1-hydroxy-2-aminophosphonic acids were used for modification of Baccatin III in the<br />

synthesis of new taxoids – potential anticancer agents<br />

Baccatine-III<br />

AcCl/Py<br />

BnNH<br />

HO<br />

Bn<br />

DPC, DMAP<br />

PO 3 H 2<br />

BnNH<br />

References<br />

1. O. I. Kolodiazhnyi Tetrahedron: Asymmetry 2005, 16, 3295-3340<br />

2. O. I. Kolodiazhnyi, I. V. Guliaiko J. Rus.Gen.Chem 2005, 75, 1933-1934<br />

3. O. I. Kolodiazhnyi, I. V. Guliaiko J. Rus.Gen.Chem, in press<br />

HO<br />

Bn<br />

OH<br />

P<br />

O<br />

O<br />

AcO<br />

HO<br />

OBz<br />

O<br />

AcO<br />

OH<br />

H<br />

O


P-42<br />

X-RAY CRYSTAL STRUCTURE OF HYDROLYSATES OF<br />

TRIPHENYLPHOSPHINE DICHLORIDE<br />

Jian Chen Zhang 1 , Wen Ping Shi 1 , Jun Xu 2 , Yu Fen Zhao 3<br />

1<br />

Department of Chemical Defense, Institute of Chemical Defense, Beijing 102205<br />

2<br />

Department of Humanities and Basic Sciences, Zhengzhou College of Animal Husbandry Engineering<br />

Zhengzhou 450011<br />

3<br />

The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, University, Xiamen 361005<br />

The Appel coupling reagents triphenylphosphine and hexachloroethane were used in peptide<br />

synthesis 1,2 . The reaction of triphenylphosphine with hexachloroethane would produce<br />

triphenylphosphine dichloride (Ph3PCl2). Until recently, Godfrey and coworkers 3 prepared the<br />

solid state Ph3PCl2, which was characterized by X-ray crystal diffraction. In the course of<br />

studying the reaction character of triphenylphosphine and hexachloroethane, two hydrolysates of<br />

triphenylphosphine dichloride, [Ph3POH]Cl and [Ph3PO]2[H2O][H3O]Cl, were obtained.<br />

Triphenylphosphine dichloride was prepared from the direct reaction of triphenylphosphine with<br />

hexachloroethane in benzene in a 1:1 stoichiometric ratio at room temperature, and the reaction<br />

procedure was traced by 31 PNMR spectra. It was found that the peak of triphenylphosphine (δ<br />

-4.76 ppm) was gradually decreased; meanwhile the peak at δ -44 ppm was appeared and gradually<br />

increased. Compared with the NMR spectrum of crystalline Ph3PCl2 in C6D6 (δ –47 ppm) 3-6 , this<br />

value of δ –44 ppm was confirmed the resonance of the non-solvated molecular species Ph3PCl2.<br />

In addition, the peak of δ 27 ppm was unchangeable in the reaction procedure, which was validated<br />

with the authentic sample of triphenylphosphine oxide.<br />

Under an atmosphere of dry nitrogen, no solid could isolate from the above solution. But under<br />

an atmosphere of air, a small quantity of colorless crystals was observed. Analyzed by 31 PNMR and<br />

ESI-MS spectra, it was validated to be not the molecular structure Ph3PCl2 but the hydrolysates of<br />

Ph3PCl2. Therefore, this was considered that the reaction solution possibly adsorbed moisture<br />

from air and triphenylphosphine dichloride was hydrolyzed. Therefore, added 1 or 2<br />

stoichiometric ratio water to the reaction solution respectively, two colorless crystals were gradually<br />

produced on standing at room temperature for ca. 4 hrs. Those were chosen for analysis by single<br />

crystal X-ray diffraction and were validated as [Ph3POH]Cl (Figure 1) and [Ph3PO]2[H2O][H3O]Cl<br />

(Figure 2), respectively. They are ionic species and tetrahedral structure. Two crystals were<br />

dissolved in deuterated chloroform and a single resonance was observed in the NMR spectrum at δ<br />

40, 35 ppm, respectively.<br />

Figure 1 X-ray crystal structure of [Ph3POH]Cl. Figure 2 X-ray crystal structure of [Ph3PO]2[H2O][H3O]Cl.<br />

64


References<br />

1. R. Appel and H. Scholer, Chem. Ber., 1979,112, 1065.<br />

2. R. Appel and L. Willms, Chem. Ber., 1979, 112, 1057.<br />

3. S. M. Godfrey, C. A. Mcauliffe, R. G. Pritchard, J. M. Sheffield, Chem. Commun., 1998, 921.<br />

4. M. A. H. A. Al-Juboori, P. N. Gates, A. S. Muir, J. Chem. Soc., Chem. Commun., 1991, 1270.<br />

5. S. M. Godfrey, C. A. Mcauliffe, R. G. Pritchard, J. M. Sheffield, Chem. Commun., 1996, 2521.<br />

6. G. Tang, G. J. Ahou, F. Ni, L. M. Hu, Y. F. Zhao, Chin. Chem. Lett., 2005, 16(3), 385.<br />

65


P-46<br />

THE SYNTHESIS OF 7,11,18,21-TETRAOXA-1,3,5,13,15,17-HEXAAZA-2,4,6λ5,12λ5,<br />

14,16-HEXAPHOSPHATRISPIRO[5.2.2.5.2.2]HENEICOSA-1,3,5,12,14,16-HEXAENE<br />

Ju Zhiyu 1 , Zou Ruyi 1 , Yin Zhengming 1 , Ye Yong 1* , Liao Xincheng 1 , Zhao Yufen 1,2*<br />

1<br />

Key Laboratory of Chemical Biology and Organic Chemistry of Henan Province, Department of Chemistry,<br />

Zhengzhou University , Zhengzhou 450052, PR China<br />

2<br />

Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Ministry of Education, Department of<br />

Chemistry, Tsinghua University , Beijing 100084, PR China<br />

In 1970’s, cyclophosphazene derivatives, kinds of widely researched compounds, can be applied<br />

as flame retardant of self-extinguish ability in plastics and fibers. 1 Many of articles has also reported<br />

that they can form an intumescent flame retardant system with their excellent fire retardant<br />

properties. 2-3 It was reported that the reaction of hexachloro- cyclophosphazene (HCCP) with<br />

pentaerythritol(2:1) gave rise to three kinds of spirane derivatives (Scheme 1). 4 According to<br />

reference, the compound 1 can be obtained in 15% yield. Recently, we successfully synthesized<br />

compound 1 in a moderate yield. The title compound was obtained in 48% yield by adding solid<br />

pentaerythritol to the solution of HCCP below -5 0 C. After stirred for 10 h, then the solution was<br />

refluxed for approximately 24 h, Further researches are now in progress in our laboratory.<br />

Cl<br />

Cl P<br />

N<br />

N Cl HO<br />

P +<br />

Cl P N<br />

Cl<br />

Cl HO<br />

OH CH2Cl2 OH<br />

Py<br />

Cl<br />

Cl P N O<br />

N P<br />

Cl P N O<br />

Cl<br />

1<br />

Cl<br />

Cl<br />

O N P Cl Cl P N O<br />

P N + N P<br />

O N P Cl Cl P N O<br />

Cl<br />

Cl 2<br />

Scheme 1<br />

66<br />

Cl<br />

Cl<br />

O P N Cl Cl P N O<br />

N P + N P<br />

O P N Cl Cl P N O<br />

Cl<br />

Cl<br />

Project supported by the Chinese National Natural Science Foundation (NO.20602032).<br />

References<br />

1. Kumar D, Fohlen G M, Parker J A., J. Polym. Sci., 1984, 22, 927-943.<br />

2. Hofle G, Steglich W.D., Angew. Chem. Int. Ed. Engl., 1978, 17, 569.<br />

3. Liang HB, Asif A, Shi WF., Polym. Degrad. Stab., 2005, 87, 495.<br />

4. Al-Madfa H.A., Shaw L.S., Shaw R.A., Phosphorus, Sulfur, Silicon, 1991, 56, 133-142.<br />

3<br />

OH<br />

OH


P-47<br />

P-NITROPHENOXYCARBONYLPHOSPHONATE DIESTERS-POTENT REAGENTS<br />

FOR THE SYNTHESIS OF HINDERED CARBAMOYLPHOSPHONATES<br />

Julia Frant, Irena Beylis, Naama Mussai, Reuven Reich and Eli Breuer<br />

Department of Medicinal Chemistry, School of Pharmacy,<br />

The Hebrew University of Jerusalem, Jerusalem, 91120 Israel<br />

Matrix metalloproteinases (MMPs) are a family of about 26 zinc-dependent endopeptidases,<br />

which collectively have the capacity to degrade all the major components of the extracellular matrix.<br />

Although the MMPs play a crucial role in physiological tissue remodeling, growth and repair, their<br />

over-expression has been linked with severe chronic pathological conditions, including cancer,<br />

arthritis, several cardiovascular disorders and others. The efficient inhibition of MMPs is, therefore,<br />

an important scientific and therapeutic target, which has attracted considerable attention within<br />

academia and industry for the last two decades. Yet, in spite of intensive worldwide research, which<br />

has yielded a multitude of highly in vitro potent inhibitors, no clinically useful inhibitor has been<br />

achieved.<br />

We are involved in a research program directed toward the design and synthesis of new MMP<br />

inhibitors, based on the carbamoylphosphonic functional group. , In this context, we have envisioned<br />

several sterically hindered carbamoylphosphonates. However, these target compounds were not<br />

accessible by the existing synthetic methods, namely by the reaction of a hindered cycloalkylamine<br />

with trialkyl phosphonothiolformate, or by conversion of the amine to an isocyanate, followed by<br />

reaction with a dialkyl H-phosphonate.<br />

We have considered that the reactivity of the carbonyl group in trialkyl phosphono-thiolformate,<br />

[RS-CO-P(O)(OR)2], could be increased by replacing the alkylmercapto group with the more<br />

strongly electron withdrawing p-nitrophenyl group. The resulting p-nitrophenyl dialkyl<br />

phosphonoformate [O2N-C6H4-CO-P(O)(OR)2], indeed proved to be a far more reactive than<br />

trialkyl phosphonothiolformate, and hindered carbamoylphosphonates, that could not be obtained<br />

even under harsh conditions such as prolonged heating and the presence of catalysts, this reagent<br />

gave the desired products in a few minutes at room temperature.<br />

Our poster will present examples of compounds that were successfully synthesized by reacting<br />

various sterically hindered amines with p-nitrophenyl dialkyl phosphonoformates.<br />

67


P-48<br />

PHOSPHORYLATION OF DIHYDROXY ANTHRAQUINONES BY<br />

ATHERTON-TODD REACTION<br />

Jun-Feng Zhao, 1 Xian-Li Wu 1 , Si-Xing Zhang, 1 Xin-Cheng Liao,* 1 Shu-Xia Cao 1 , Yan-Chun Guo 1 1, 2<br />

, and Yu-Fen Zhao<br />

1. Department of Chemistry, the Key Laboratory of Chemical Biology, Zhengzhou University, Zhengzhou 450052,<br />

Henan,P.R.China E-mail: lxc66@zzu.edu.cn Tel: +86371-67767050<br />

2. Department of Chemistry, the Key Laboratory for Bioorganic Phosphorus Chemistry and Chemical Biology, Ministry<br />

of Education, School of Life Sciences and Engineering, Tsinghua University, Beijing 100084, P.R.China<br />

The phosphorylation and dephosphorylation of proteins play an important role in regulation<br />

complicated biochemical processes. Moreover,phosphorylated biomolecules and medical molecules<br />

have many unique activities and characteristics. We studied the phosphorylation of dihydroxy<br />

anthraquinones by Atherton-Todd reaction. Two kinds of dihydroxy anthraquinones was<br />

successfully phosphorylated by diethylphophite (DEPPH) and diisopropylphophite(DIPPH).<br />

R 2<br />

O<br />

O<br />

OH<br />

R 1<br />

+<br />

O<br />

P<br />

H<br />

RO OR<br />

68<br />

HCCl 3/NEt 3<br />

R=CH 2CH 3 or CH(CH 3) 2<br />

1a-b 2a-d<br />

Scheme 1. Phosphorylation of different dihydroxy anthraquinones<br />

R 2'<br />

Table 1. Particular substituents of all compounds<br />

Compound No. R1 (R1’) R2 (R2’)<br />

1a OH H<br />

1b H OH<br />

2a OP(O)(OCH2CH3)2 H<br />

2b OP(O)(OCH(CH3)2)2 H<br />

2c H OP(O)(OCH2CH3)2<br />

2d H OP(O)(OCH(CH3)2)2<br />

O<br />

O<br />

OH<br />

R 1'


P-49<br />

DECOMPOSITION REACTION OF<br />

TETRA-HYDROXYMETHYLPHOSPHONIUM CHLORIDE<br />

Kaiqi Shi, Ya Li, Lan Jiang, Qiaoyun Ye, Shuangxi Shao,<br />

Institute of Applied Chemistry, NingboUniversity of Technology, Ningbo, China 315016<br />

At present, tetra-hydroxymethyl phosphonium chloride (THPC) is widely used in flame retardant<br />

finish, industrial circulating cooling water treatment and leather manufacture industry, and it will<br />

decompose and may yield tri-hydroxymethyl phosphonium (THP), tri-hydroxymethyl phosphonium<br />

hydroxide (THPH), or tri-hydroxymethyl phosphine oxide (THPO) in application process. To<br />

understand the decomposition reaction of THPC in different pH condition, the experiment is carried<br />

out. Firstly, we determine the THPC content of THPC solution with pH=4.0~13.0 by the indirect<br />

iodimetry method, respectively. When pH=4.0~6.0, the THPC content is between<br />

70.34%~71.33%. When pH=7.0~9.0, the THPC content is between 56.90%~58.12%, and when<br />

pH=10.0~13.0, the THPC content is between 0.22%~0.94%. Consequently, we find that THPC<br />

content decreases when pH of the THPC solution rising, and there are two sudden changes at<br />

pH=6.0 and pH=9.0. Then, by FT-IR and 31 P NMR, we analyze the structures of phosphorus<br />

compounds in the THPC solution at pH=4.0, pH=6.0 and pH=9.0. The 31 P NMR results show that<br />

the chemical shifts of -27ppm, -23ppm, 26ppm and 49ppm are the absorptions of THPH, THP,<br />

THPC and THPO respectively. The contents of THP, THPH and THPO increase while the content<br />

of THPC decreases. At pH=6.0, the absorption of THPH appears. When pH=9.0, the absorption<br />

of THPC vanishes. Therefore, the decomposition reaction of THPC may reach an equilibrium<br />

between pH=6.0 and pH=9.0, and the complete decomposition would take place when pH>9.0.<br />

Furthermore, the Wang-Ford charge distributions of the main phosphorus compounds in THPC<br />

solution are also calculated by the Cambridge chemical software to investigate their reactivity.<br />

From the charge distributions analysis, we conclude that THP is the most stable phosphorus<br />

compound, while THPO, comparing with the other three phosphorus compounds, have higher<br />

reactivity due to its high asymmetric charge distribution, which could give a favorable guide in<br />

application.<br />

69


P-50<br />

PHOSPHONILATION OF 1,3-DIARYL-2,3-DIHYDRO-1Н-NAPHTH[1,2-Е][1,3]OXAZINE<br />

BY DIALKYL AND DIARYL PHOSPHONATES<br />

Kirill E. Metlushka 1 , Vladimir A. Alfonsov 1 , Charles E. McKenna 2 , Boris A. Kashemirov 2 , Olga N. Kataeva 1 , Viktor F.<br />

Zheltukhin 1 , Dilyara N. Sadkova 1 , Alexey B. Dobrynin 1<br />

1A.E.Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center of the Russian Academy of<br />

Sciences, 8 Arbuzov St., Kazan, 420088 Russian Federation. Email: alfonsov@iopc.knc.ru<br />

2Department of Chemistry, University of Southern California, Los Angeles, CA 90089 USA<br />

Chiral 1-(α-aminobenzyl)-2-naphthols, known as Betti bases, are available from the condensation<br />

of β-naphtol with benzaldehydes and ammonia or amines. These compounds are of interest to<br />

chemists who work on asymmetric syntheses and are seeking enantiopure chiral inductors or chiral<br />

precursors. Recently, Hu et al. (J. Org. Chem., 2005, 70, 8617) reported resolution of isolated Betti<br />

base as an L-(+)-tartaric acid salt. We report here resolution of the Betti base condensation product<br />

1 (formed in situ from 2-naphthol, ammonia and benzaldehyde) using L-(+)-tartaric acid. The<br />

oxazine 1 in CDCl3 solution exists as a mixture of tautomers of oxazine and imine forms,<br />

resonances from all forms being present in the 1H NMR spectrum.<br />

The products of this reaction are (S)-(+)-1-(α-aminobenzyl)-2- naphthol tartrate 2, the acetal of<br />

benzaldehyde and tartaric acid 3 and (R)-(-)-1,3-diaryl-2,3-dihydro-1Н-naphth[1,2-е][1,3]oxazine,<br />

which can be easily separated by crystallization. The addition reactions of dialkyl- and<br />

diphenylphosphite with racemic and enantiopure 1 and its 4-arylsubstituted derivatives have also<br />

been studied. The reactions proceed diastereoselectively with formation of aminophosphonates 4.<br />

This work was supported by the Civilian Research and Development Foundation (grant no.<br />

RUC2-2638-KA-05) and the Russian Foundation for Basic Research (grant no. 03-03-33082).<br />

70


P-51<br />

DIMENTHYL (2R)-2-HYDROXY-3-CHLOROPROPYLPHOSPHONATE – ACCESSIBLE<br />

CHIRON FOR THE ASYMMETRIC SYNTHESIS OF HYDROXYPHOSPHONATES<br />

Kolodiazhnyi O.I., Nesterov V.V.<br />

Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine,<br />

Murmanskaia 1, Kyiv, UKRAINE e-mail: oikol123@rambler.ru<br />

Optically pure dimenthyl (2R)-2-hydroxy-3-chloropropylphosphonate 1 was synthesized by<br />

reaction of the di(1R,2S,5R)-menthylketophosphonate 2 with the chiral complex 3 [1]. The<br />

reduction of the ketophosphonate 2 by this complex proceeded under the control of double<br />

asymmetric induction [2] and resulted in the formation of the hydroxyphosphonate 1 with high<br />

optical and chemical yields. The compound 1 was isolated as a crystalline stereochemically pure<br />

substance with ~100 % de. The compound 1 is accessible chiron, which was used for the<br />

preparation of a number of biologically important enantiomerically pure products, including<br />

amino- -hydroxybutyric acid (phospho-GABOB) 4, 2,3-aziridinopropylphosphonate 6,<br />

2,3-epoxypropylphosphonate 7, phospho-carnitine 8, etc in multigramme scale. The structure,<br />

chemical and optical purity, absolute configurations of all synthesized compounds were carefully<br />

investigated [3,4].<br />

(RO) 2 P<br />

O<br />

O<br />

(RO) 2 P(O)<br />

R=Mnt, H;<br />

2<br />

O<br />

HO OH<br />

H<br />

O -<br />

B<br />

O<br />

8<br />

H<br />

3<br />

OH<br />

H<br />

O<br />

Cl<br />

Na +<br />

+<br />

NMe3 Me 3 N<br />

(RO) 2 P(O)<br />

O<br />

(RO) 2 P<br />

O<br />

(RO) 2 P<br />

71<br />

OH<br />

H<br />

4<br />

OH<br />

H<br />

1, ~100% de<br />

O<br />

H<br />

NH 2<br />

Cl<br />

NaN 3<br />

(RO) 2 P(O)<br />

(RO) 2 P(O)<br />

References<br />

1 V. V. Nesterov and O. I. Kolodiazhnyi Tetrahedron: Asymmetry 2006, 17, 1023-1025<br />

2 O.I. Kolodiazhnyi Tetrahedron, 2003, 59, 5953-6018.<br />

3 V. V. Nesterov and O. I. Kolodiazhnyi J. Rus. Gen. Chem. 2006, 76, 1068-1077<br />

4 O. I. Kolodiazhnyi Tetrahedron: Asymmetry 2005, 16, 3295-3340<br />

3<br />

7<br />

OH<br />

H<br />

(R)-5<br />

(R)- 6<br />

N 3<br />

H<br />

N<br />

H


P-55<br />

SYNTHESIS N-PHOSPHORYLATED CHRYSIN-7-YL AMINO ACID ESTERS<br />

Li Wenfeng 1 , Chen Xiaolan 1 , Yuan Jinwei 1 , Qu Lingbo 1,2 , Zhao Yufen 1,3<br />

1<br />

Department of Chemistry, Zhengzhou University, Zhengzhou, 450052, P. R. China<br />

2<br />

Anyang Normal College, Henan Province, Anyang, 455002, P. R. China<br />

1, 3<br />

The Key Laboratory for Bioorganic Phosphorus Chemistry, Department of Chemistry School Life Sciences and<br />

Engineering, Tsinghua University, Beijing, 10084, P. R. China<br />

Chrysin, 5,7-dihydroxyflavone, which is widely distributed in plants, is known to have many<br />

biological activities including antibacterial, antioxidant, anti-inflammatory, anti-allergic, anticancer,<br />

anti-estrogenic, and anoxiolytic activities. [1] Efforts to improve the biological activity of chrysin<br />

have led to the synthesis of derivatives by appropriate modification. [2] The modification mainly<br />

centers on aromatic ring (either A or C) substitutions in chrysin. N-phosphorylated amino acids<br />

have been shown to play an important role in probing the origin of life. At the same time, they have<br />

wide applications in the fields of biotechnology, and medicine. [3] Within the pharmaceutical<br />

industry, phosphate esters are often used as pro-drugs to increase the bio-availability of the a drug. [4]<br />

In the work described in this paper, we introduce an N-phosphorylated amino acid into chrysin<br />

modification. Five new analogs have been synthesized(scheme1) and their structures have been<br />

determined by ESI-MS, NMR and IR.<br />

HOOC<br />

R<br />

NH 2<br />

HO<br />

O<br />

O<br />

((CH 3) 2CHO) 2-PH<br />

H 2 O/Et3N/EtOH OH O<br />

THF, DMAP, DCC<br />

72<br />

R<br />

O<br />

HOOC<br />

O<br />

NH<br />

P O<br />

O<br />

R<br />

O<br />

NH<br />

O<br />

P O<br />

O<br />

O<br />

OH O<br />

a~e<br />

a: R=Methyl<br />

b: R=isopropyl<br />

c: R=isobutyl<br />

d: R=2-butyl<br />

e:phosphated L-Proline<br />

Scheme 1<br />

References<br />

1. Hecker, M.; Preiss, C.; Klemm, P.; Busse, R. Br. J. Pharmacol. 1996, 118, 2178.<br />

Fishkin, R. J.; Winslow, J. T. Psychopharmacology (Berl.) 1997, 132, 335<br />

2. Shin, J. S.; Kim, K. S.; Kim, M. B. et al. Bioorg. Med. Chem. Lett. 1999, 9, 869;<br />

Dao, T.-T.; Chi, Y.-S.; Kim,J.; Bioorg. Med. Chem. Lett. 2004, 14, 1165.<br />

3. Zhao Yufen; Zhang Jianchen; Xu Jun et al Chinese Jounal of Organic Chemistry, 2004,24,6609<br />

4. Jones S.; Selitsianos D.; Thompson K. J. et al. J. Org. Chem. 2003, 68(13), 5211-5216.


P-57<br />

APPLICATIONS OF LAWASSON’S REAGENT IN SYNTHESIS OF BIOLOGICALLY<br />

ACTIVE PHOPSHORUS-HETEROCYCLES<br />

Liang-Nian He*, Jin-Quan Wang, Ya Du, Fei Cai<br />

State Key Lab of Elemento-organic Chemistry, Nankai University, Tianjin, 300071, P. R. China<br />

Our research interest has been focused on the development of new synthetic methodology<br />

centered around biologically active phosphorus heterocycles, because functionalized phosphorus<br />

heterocycles and their derivatives are of great interest bioactive substances with various properties.<br />

We disclosed a methodology for 5-membered and 6-membered phosphorus heterocycles with<br />

biological activity via cyclization of Lawesson’s reagent, 2,4-bis(4-methoxyphenyl)-1,3,2,4-<br />

dithiadiphosphetane-2,4-disufide, with bifunctional substrates. This cyclization reaction of<br />

Lawesson’s reagent was successfully applicable to other bifunctional compounds to afford different<br />

kinds of phosphorus-heterocycles. That prompts us to develop a method for synthesis of the fused,<br />

spiro phosphorus-heterocycles, 7-membered P-heterocycles, 6-membered P, S-heterocycles and<br />

other P- and S-containing compounds, as shown in Scheme 1. Preliminary bioassays revealed that<br />

some of the title compounds possess selective herbicidal activity.<br />

Ar<br />

S<br />

R 2<br />

R 1<br />

R 2<br />

O<br />

P<br />

O<br />

Cl<br />

Cl<br />

Cl<br />

O P<br />

O P<br />

Cl<br />

S<br />

S<br />

Ar<br />

Ar<br />

S<br />

N<br />

O S<br />

P<br />

Ar<br />

O<br />

P<br />

N<br />

NEt 2<br />

O<br />

R<br />

N<br />

R 2<br />

R 1<br />

R 2<br />

S<br />

N<br />

N<br />

P<br />

Cl<br />

Cl<br />

73<br />

Ar<br />

O<br />

N<br />

R 1 R 2 R 1<br />

S<br />

Cl<br />

O<br />

O P<br />

S<br />

Ar<br />

Cl<br />

N<br />

S<br />

P<br />

N<br />

NEt 2<br />

S<br />

S<br />

N<br />

N<br />

N<br />

N<br />

P O<br />

Ar<br />

S<br />

P O<br />

Ar<br />

Scheme 1<br />

References<br />

1. M. Jesberger, T. P. Davis, L. Barner, Synthesis, 2003, (13), 1929.<br />

2. a) L. He, Y. Luo, K. Li, G. Yang, M. Ding, X. Liu, T. Wu, Phosphorus, Sulfur, and Silicon and the Related<br />

Elements, 2002, 177, 2675; b) L. He, Y. Luo, K. Li, M. Ding, A. Lu, X. Liu, T. Wu, F. Cai, Synth. Commun., 2002,<br />

33(9), 1415; c) L. He, Y. Luo, M. Ding, A. Lu, X. Liu, T. Wu, F. Cai, Heteroatom Chem., 2001, 12(6), 497; d) Y. Luo,<br />

L. He, M. Ding, G. Yang, A. Lu, X. Liu, T. Wu, Heterocyclic Commun., 2001, 7(1), 37; e) L. He, Y. Luo, M. Ding, A.<br />

Lu, X. Liu, T. Wu, F. Cai, Heteroatom Chem., 2001, 12(6), 497; f) L.-N. He, R.-X., Zhuo, R.-Y. Chen, Y.-J. Zhang,<br />

Heteroatom Chem., 1999, 10(2), 105; g) L.-N. He, T.-B. Huang, F. Cai, R.-Y. Chen, Phosphorus, Sulfur, and Silicon<br />

and the Related Elements, 1998, 132, 147; h) L.-N. He, R.-X. Zhuo, R.-Y. Chen, J. Zhou, Synth. Commun., 1997, 27<br />

(16), 2853.<br />

R 2


P-62<br />

PHOSPHOROUS ACID NUCLEOPHILIC ADDITION AT CARBONYL GROUPS<br />

Li-Ping Zhang a,b , LingBo Qu a , Yu-Fen Zhao *a,c,d<br />

a Key Laboratory of Chem-biology and Organic, Zhengzhou University, Henan Province, 450052, P. R. China;<br />

b Department of Chemistry, Anyang Normal University, Anyang 455002, P. R. China;<br />

c Key Laboratory of Bioorganic Phosphorus Chemistry of the Education Ministry, Department of Chemistry, School of<br />

Life Sciences and Engineering, Tsinghua University, Beijing 100084, P. R. China;<br />

d The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and<br />

Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China<br />

In recent years a renewed interest in the synthesis of organophosphorus compounds has appeared.<br />

This has been the result principally of the development of new applications of materials bearing a<br />

carbon-phosphorus linkage for a variety of industrial uses. Initial investigations of the addition of<br />

trivalent phosphorus to carbonyl compounds were performed with the use of either trialkyl or<br />

dialkyl phosphites, yielding the corresponding phosphonate esters. Free acid was obtained by<br />

hydrolysis with dil. HCl. This paper represents a particularly convenient method for generating<br />

organophosphonic acid compounds. Series of α-hydroxylalkylphosphonic acid, unsaturated<br />

phosphonic acid, conjugated phosphono carboxylic acid, substituted<br />

1-hydroxyl-methane-1,1-diphosphonic acid were synthesized by reacting phosphorous acid (H3PO3)<br />

directly with aldehydes, ketones, carbonyl ester and carbonyl chloride.<br />

Reference<br />

[1] Abramov, V. S.; Dmitrieva, R. V.; Kapustina, A. S. Reaction of dialkyl phosphorous acids with aldehydes and<br />

ketones. IV. Butyl and allyl esters of -hydroxyalkylphosphonic acids. Zhurnal Obshchei Khimii (1953), 23 257-62.<br />

[2] Sekine, Mitsuo; Yamamoto, Isamu; Hashizume, Akio; Hata, Tsujiaki. Silyl phosphites.V. The reactions of<br />

tris(trimethylsilyl) phosphite with carbonyl compounds. Chemistry Letters (1977), (5), 485-8.<br />

[3] Pudovik, A. N. New method of synthesis of esters of phosphonocarboxylic acids and their derivatives. Doklady<br />

Akademii Nauk SSSR (1952), 85 349-52.<br />

[4] Blazis, Vincent J.; Koeller, Kevin J.; Spilling, Christopher D. Asymmetric synthesis of -hydroxy-phosphonamides,<br />

phosphonates and phosphonic acids. Tetrahedron: Asymmetry (1994), 5(4), 499-502.<br />

[5] Ginsburg, V. A.; Yakubovich, A. Ya. Reaction of aldehydes with trialkyl phosphites.<br />

Zhurnal Obshchei Khimii (1960), 30 3979-87.<br />

[6] Schuelke, Ulrich. Phosphonylation by tetraphosphorus hexoxide. Phosphorus, Sulfur and Silicon and the Related<br />

Elements (1990), 51-52(1-4), 153-6.<br />

74


P-64<br />

THE SYNTHESIS OF TETRACYCLIC PHOSPHORATE<br />

M.A.Pudovik, L.K.Kibardina, S.A.Terent’eva, O.N.Kataeva, G.A.Chmutova, V.A.Alfonsov<br />

A.E.Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Centre of the Russian Academy of Sciences,<br />

Arbuzov Str., 8, 420088 Kazan, Russian Federation. Fax: +7 8432 75 5322; e-mail: pudovik@iopc.knc.ru<br />

A reaction of ethylenechlorophosphite with diimine 1 was investigated. It proceeds in mild<br />

conditions and results in the formation of tetracyclic phosphorate 5. Reaction pathways to this<br />

product are proposed.<br />

CH<br />

NCH2CH2N CH<br />

OH OH<br />

1<br />

CH<br />

NCH2CH2N CH<br />

O H<br />

P<br />

O<br />

CH<br />

O O<br />

N<br />

3<br />

CH 2CH 2<br />

NH<br />

CH<br />

O O<br />

P<br />

O O<br />

+<br />

O<br />

O<br />

PCl<br />

75<br />

CH<br />

CH<br />

NCH2CH2N CH<br />

O<br />

OH PO<br />

O<br />

2<br />

NCH3CH2NH<br />

CH<br />

O O<br />

P<br />

O O<br />

5<br />

We suppose, the phosphorylation of the compound 1 takes place on the first stage of the reaction<br />

with the formation of phosphite 2. The phosphite 2 then turns into P-H-spyrophosphorane 3, which<br />

rearranges by intramolecular addition of the P–H bond to the C=N double bond to furnish the<br />

tricyclic phosphorane 4. On the last stage the formation of intramolecular N→P bond takes place to<br />

form final product – the phosphorate 5.<br />

The stability of all participants of the reaction is evaluated by the means of the functional density<br />

theory (Priroda/PBE/3z3 and B3LYP/6-31G (d, p) with complete optimization of the geometry; the<br />

thermodynamic utility of 3→5 transformation is revealed. The calculated geometrical<br />

characteristics of the structure 5 are in agreement with the X-Ray data.<br />

This study was supported by the Russian Foundation for Basic Research (grant no. 06-03-32085).<br />

4


P-65<br />

ABNORMAL REACTIVITY OF ARYLAMINOMETHYLENEBISPHOSPHONATES.<br />

AMINOMETHYLATION ON BENZENE RING IN BASE MEDIUM<br />

M.O.Lozinsky, A.L.Chuiko<br />

Institute of Organic Chemistry of the Nathional Аcademy of Sciences of Ukraine<br />

Murmanskaya str. 5, Kyiv 02094, Ukraine Chuikoal@yahoo.com<br />

We have found, that aminogroups of (arylamino)methylenebisphosphonic acids are unexpectedly<br />

weak as bases.<br />

R<br />

O<br />

PCl3 /H2O R<br />

N<br />

H<br />

H<br />

76<br />

N<br />

H<br />

PO 3 H 2<br />

R = p-Me-, p-H2N-, p-HO-, p-Cl-, m-O2N-.<br />

PO 3 H 2<br />

5 new acids were synthesised according to the recently published method [1]. Only one of them<br />

(R = p-Me-) seems to form internal salt. This compound is well crystallisible from water. Other<br />

synthesised (arylamino)methylenebisphosphonic acids don't form internal salts. They were isolaled<br />

as salts with corresponding anilynes, and did not form free acids at treatment with HCl. Thus,<br />

[(4-aminophenyl)amino]methylenebisphosphonic acid was isolated as a salt with 1/2 molecule of<br />

p-phenylenediamine, and this salt does not lose significant amount of the phenylenediamine at<br />

recrystallisation from 5% HCl:<br />

H N<br />

H N<br />

2<br />

2<br />

PO3H2 • 2<br />

NH N PO H<br />

2<br />

3 2<br />

H<br />

We suppose, that this weakness of the aminogroups is the result of conjugation with benzene ring,<br />

which is stronger than is usual for anilynes. It is confirmed by high reactivity of the benzene ring at<br />

electrofilic attack. Thus, we have realized aminomethylation of [(4-methylphenyl)amino]methylenebisphosphonic<br />

acid in water in the presence of amine excess:<br />

H C 3<br />

N<br />

H<br />

PO H 3 2<br />

PO H 3 2<br />

O O<br />

NH;<br />

CH2 O<br />

H C 3<br />

N N<br />

H<br />

PO H 3 2<br />

PO H 3 2<br />

? O NH<br />

We have not found in literature a reaction example of aminomethylation on benzene ring in basic media.<br />

Reference<br />

[1] Mingshu Wu, Ruyu Chen, You Huang. Synth. Comm. №8. 2004. p.1393-98.


P-69<br />

THE PREPARATION OF NITROGEN-CONTAINING<br />

HETEROARYOYLPHOSPHONATES<br />

AND THEIR REACTIONS WITH TRIALKYL PHOSPHITES<br />

D. Vaughan Griffiths, Michael C. Salt and Helen V. Taylor<br />

School of Biological and Chemical Sciences, Queen Mary, University of London,<br />

Mile End Road, London, E1 4NS, UK<br />

As part of our wider studies of aroyl- and heteroaroyl-phosphonates we have been investigating<br />

α-ketophosphonates based on the pyrrole and pyridine ring systems. These systems have proved to be<br />

much more difficult to prepare than the furan- and thiophene-based systems we have also been<br />

studying. Nevertheless, we have now successfully prepared pyrrol-2-ylcarbonylphosphonates such 1<br />

(R=Me and Ph) and have investigated their reactions with trimethyl phosphite. This results in<br />

deoxygenation of the carbonyl group to give the corresponding carbene intermediates 2 which are<br />

then trapped by the trimethyl phosphite present in the reaction mixture to give the ylidic<br />

phosphonates 3. We have so far seen no evidence of carbene insertion into the substituent R.<br />

4<br />

O<br />

P(OMe) 2<br />

77<br />

O<br />

O<br />

N<br />

O<br />

P(OMe) 2<br />

N<br />

C<br />

N<br />

C<br />

R<br />

O<br />

R<br />

P(OMe) 2<br />

N<br />

C<br />

1 2 R<br />

P(OMe) 3<br />

3<br />

In contrast, the pyridin-3-ylcarbonylphosphonate system 4 (R=H) reacts with further phosphite<br />

leading to the formation of 5. However, this mode of attack is suppressed if a substituent is placed at<br />

the 2-position on the ring. For example, the reaction of the 2-phenoxy-substituted system 4 (R=OPh)<br />

results in deoxygenation of the carbonyl group resulting in carbene formation and the formation of<br />

the insertion product 6.<br />

O<br />

C<br />

O<br />

P(OMe) 2<br />

MeO<br />

O O<br />

OMe<br />

OMe<br />

P<br />

O O<br />

O<br />

(MeO) 2P<br />

N R<br />

(MeO) 2P<br />

P(OMe) 2<br />

3-Pyr 3-Pyr<br />

N O<br />

N<br />

O<br />

C<br />

O<br />

P(OMe) 2<br />

N<br />

O<br />

C<br />

5 6<br />

P(OMe) 2<br />

O P(O)(OMe) 2<br />

C P(O)(OMe) 2<br />

7<br />

8 N 9<br />

For the unsubstituted 2- and 4-pyridinylcarbonyl chlorides the reaction with trimethyl phosphite<br />

proceeds beyond the initial formation of the -ketophosphonates 7 and 8 to give the corresponding<br />

diphosphorus compounds 9. The impact of having substituents ortho to the ketophosphonate group in<br />

these systems is currently being assessed.<br />

O<br />

C


P-71<br />

REACTION OF RACEMIC AND NON-RACEMIC SILYLATED<br />

(1-PHENYL)ETHYLAMINE WITH<br />

O-PHENYLCHLOROMETHYLISOTHIOCYANATOTHIOPHOSPHONATE. SYNTHESIS<br />

OF OPTICALLY ACTIVE 1,3,4-THIAZAPHOSPHOLE<br />

Ludmila K. Kibardina, Mikhail A. Pudovik, ∗ Natalia A. Khailova, Vladimir A. Alfonsov, Olga N. Kataeva<br />

A.E.Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Centre of the Russian Academy of<br />

Sciences, Arbuzov Str., 8, 420088 Kazan, Russian Federation. Fax: +7 8432 75 5322;<br />

e-mail: pudovik@iopc.knc.ru<br />

Optically active R-(+)-N-trimethylsilyl(1-phenyl)ethylamine 2a was synthesized by interaction of<br />

R-(+)-(1-phenyl)ethylamine with trimethylchlorosilane in the presence of a base.<br />

R-(+ )-PhCHNH 2<br />

Me<br />

+ Me 3SiCl<br />

-Et3N . HCl<br />

78<br />

Et 3N<br />

R-(+ )-PhCHNHSiMe 3<br />

Me<br />

2a<br />

The reaction of isothiocyanate 1 with silylamine 2a proceeds easily in an ether at room<br />

temperature and results in a mixture of 4a and 4b with chemical shifts δР 120.05 and 19.77 ppm. in<br />

29 : 71 % ratio correspondingly. Diastereomer 4b crystallized from a reaction mixture after 24 h<br />

and it’s angle of the specific rotation was [α]D 20 +240.5 (c=3.87).<br />

S<br />

PhO<br />

PNCS +<br />

ClCH 2<br />

1<br />

S<br />

PhO<br />

P<br />

N<br />

C<br />

S<br />

2a<br />

4a RcRp<br />

Me<br />

R-(+)-PhCHNHSiMe 3<br />

Me<br />

NH C<br />

Ph<br />

H<br />

+<br />

S<br />

PhO<br />

P<br />

N<br />

S<br />

S<br />

PhO P N C NH C<br />

Ph<br />

ClCH2 SiMe 3 H<br />

C<br />

S<br />

4b RcSp<br />

3a RcRp<br />

NH<br />

S<br />

+<br />

P N C NH C<br />

ClCH2<br />

Ph<br />

PhO SiMe 3 H<br />

S<br />

3b RcSp<br />

Me<br />

C<br />

Ph<br />

H<br />

Me<br />

Me<br />

-Me 3SiCl<br />

X-ray structure data reveal that the configuration of carbon and phosphorus atoms in these<br />

compounds is the opposite. If the configuration of chiral carbon atom in isomer 4b is R and is<br />

determined by the configuration of amine used, then the absolute configuration of the phosphorus<br />

atom is S. That is the preferred covalent bonding with the enantiomer possessing the opposite<br />

configuration of the chiral center takes place in the course of the reaction of chiral isothiocyanate 1<br />

with amine 2a. It must be due to the influence of steric factors on the first stage of the reaction –<br />

addition of silylamine to isothiocyanate with the formation of appropriate thiourea. We failed to fix<br />

it spectral and that indicates the fast second stage - cyclization. And at this stage there is no changes<br />

in the configuration of chiral centers and thus it does not render an influence on stereochemical<br />

result of the process.<br />

This study was supported by the Russian Foundation for Basic Research (grant no. 06-03-32085).


P-73<br />

STUDY OF REACTION OF ACETYLENIC PHOSPHONATES<br />

WITH CARBANIONIC NUCLEOPHILES<br />

N.G. Didkovskii, A.I Petryanina, A.V. Dogadina, N.I. Svintsitskaya and B.I. Ionin<br />

St. Petersburg State Technological Institute26 Moskovskii pr., St. Petersburg 190013, Russia.<br />

E-mail: bi@thesa.ru<br />

Reactions of chloroacetylenephosphonates and acetylenediphosphonates with carbanionic<br />

nucleophiles formed in situ by interaction of a series of CH-acids with potassium carbonate are<br />

studied. As the initial CH-acids are taken: malonic dinitrile and esters, cyanoacetic ester,<br />

acetylacetone, dimedone, etc. Reactions performed are shown convenient for creation new C–C<br />

bonds in organophosphorus compounds and are prospective for various syntheses.<br />

O O<br />

P Cl RCCH2CR' O<br />

P =<br />

P(OCH3) 2 ; R R ' = = CH3 , Ph<br />

It is shown that the first step in the<br />

reactions of the carbanionic nucleophiles<br />

with chloroacetylenephosphonatesis is<br />

substitution of chlorine with formation of<br />

functionalized phosphonates. With<br />

acetylacetone reaction affords K-derivative<br />

of acetylacetone phosphonoacetylene<br />

derivative. With dimedone, neutral product<br />

of substitution is formed exerting prototropic<br />

isomerization into allenic isomer. Monitoring<br />

the same reaction with malonic dinitrile by<br />

means of NMR spectroscopy showed<br />

intermediate formation of both acetylenic and<br />

allenic compounds followed by addition of<br />

second molecule of the nucleophile with<br />

formation of phosphonate tetranitrile<br />

as a K-derivative.<br />

79<br />

K CO<br />

2 3<br />

P<br />

O<br />

KH<br />

OH2<br />

Tetramethyl acetylenediphosphonate + malonic<br />

dinitrile + K2CO3: x-ray crystallography<br />

Reaction with malonic esters affords a mixture of acetylenic and allenic compounds.<br />

Reaction of the nucleophiles with acetylenediphosphonates proceeds as addition at the triple bond,<br />

but in contrast to the similar reaction with acetylenedicarboxylates, this addition results in formation<br />

of stable enough K-derivatives, as evidenced by NMR spectroscopy and x-ray<br />

crystallography. Acidification by trifluoroacetic acid gives neutral compounds which enter<br />

prototropic isomerization.<br />

Reference<br />

1. N. G. Didkovskii, A. I. Petryanina, A. V. Dogadina, and B. I. Ionin, Rus. J. Gen. Chem., 2006, Vol. 76, No.9, p. 1512,<br />

1516.<br />

2. A.M. Shekhadeh, N. G. Didkovskii, A. V. Dogadina, and B. I. Ionin, Rus. J. Gen. Chem., 2005, Vol. 75, No.1, p. 9.


P-75<br />

THE PHOSPHO-ALDOL REACTION AND COMPLEXES OF ALUMINIUM<br />

CONTAINING SALCYAN AND RELATED LIGANDS<br />

Nichola E. Cosgrove and Terence P. Kee<br />

School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK<br />

The phospho group is one of the most important biochemical functions, controlling many<br />

biological processes such as cell membrane synthesis, signal transduction, energy conversion and<br />

skeletal construction. The transfer of a phospho group known as phosphorylation, results in the<br />

formation of a [P-O] linkage. A variation on this concept is hydrophosphonylation, where a<br />

phosphorus-carbon bond is formed. One of the most versatile of the phosphorus-carbon reactions<br />

is the phospho-aldol reaction (PA; Scheme below).<br />

O<br />

R P<br />

O H<br />

O<br />

R<br />

CAT CAT<br />

H<br />

O<br />

X<br />

R P<br />

O H<br />

O<br />

R<br />

R' H<br />

R = alkyl, aryl etc. CAT = Catalyst; X = O<br />

R<br />

NH HN<br />

XH n H nX<br />

Salcyan<br />

80<br />

O<br />

R P<br />

O<br />

O<br />

R R'<br />

X = O, n = 1; X = N, n = 2. R = H, Me, t Bu, Ph<br />

X<br />

H +<br />

R<br />

O<br />

P<br />

O<br />

O<br />

R R'<br />

XH<br />

The phosphonate group is very similar to those present in biological phosphates, allowing it the<br />

ability to mimic their roles. In order to be successful in these applications, control over asymmetry<br />

is vital as this could have severe repercussions upon the properties and effects it has on the body.<br />

In this contribution, we outline some of the results of our molecular and electronic<br />

(semi-empirical) modelling at the PM3 level using the Hyperchem 7.0 package (Hypercube, Florida)<br />

combined with synthetic work on new types of ligand based on the salcyan framework.<br />

Applications in PA catalysis are discussed.<br />

R


P-78<br />

SYNTHESIS OF 2-SUBSTITUED-PYRANO[2,3-D]PYRIMIDIN- 4(3H)-ONE<br />

DERIVATIVES USING IMINOPHOSPHORANE<br />

Qing-Yun Ren, Hong-Wu He*<br />

Key Laboratory of Pesticide &Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal<br />

University, Wuhan, 430079, P. R. China<br />

The derivatives of pyranopyrimidines have been the focus of great interest over many years. This<br />

1, 2<br />

is probably due to the fact that pyranopyrimidine system shows remarkable biological properties.<br />

Here we reported the synthesis of 2-substituted-5-aryl-3,8-diphenyl- 6-methyl-5,8-dihydro-5H<br />

-pyrazolo[4’,3’:5,6]pyrano[2,3-d] pyrimidin-4(3H)-ones 6. The pyrazolo[3,4- b]pyrimidine 3, easily<br />

obtained from pyrazolone 1, ethyl α-cyanocinnamates 2 using TEBA as catalyst, was converted to<br />

iminophosphorane 4 via reaction with triphenylphosphine, hexachloroethane and Et3N.<br />

Iminophosphorane 4 reacted with phenyl isocyanate to give carbodiimides 5, which were allowed to<br />

react with nucleophiles such as amines, alcohols and phenols to produce target<br />

compounds.Structure of compounds 6 were identified by 1 H, IR spectral data, elementary analysis,<br />

and x-ray analysis.<br />

H3C Ar CN<br />

H3C Ar<br />

N<br />

N<br />

Ph<br />

1<br />

O<br />

+<br />

H<br />

2<br />

COOEt<br />

H2O N<br />

N<br />

Ph<br />

O<br />

3<br />

PhNCO<br />

H3C<br />

Ar<br />

N N<br />

Ph<br />

5<br />

O<br />

COOEt<br />

N<br />

C NPh<br />

81<br />

HY<br />

Base<br />

H 3C<br />

Y=NHR 1 , NR 2 2, OR 3 etc<br />

SCHEME 1<br />

COOEt<br />

NH2<br />

Ph3P<br />

Ar<br />

N N<br />

Ph<br />

6<br />

H3C<br />

O<br />

N O<br />

N<br />

Ph<br />

4<br />

O<br />

Ph<br />

N<br />

N<br />

Ar<br />

Y<br />

COOEt<br />

N PPh3<br />

Acknowledgements<br />

We gratefully acknowledge financial support of this work by National Key Basic Research<br />

Development Program of China (No: 2003CB114406) and National Natural Science Foundation of<br />

China ( No: 20372023).<br />

References<br />

[1] S. C. Kuo, L. J. Huang, and H. Nakamura, J. Med. Chem. 27, 539 (1984).<br />

[2] R. Wriggleworth, W. D. Inglis, D. B. Livingstone, C. J. Snekling, and H. C. S. Wood, J. Chem. Soc Perkin Trans. 1.<br />

959 (1984).


P-81<br />

SYNTHESIS OF SOLANESYL PHOSPHONATE<br />

Qu Lingbo 1 Shi Xiaona 2 Chen Xiaolan 2*<br />

1 Anyang Normal University, Henan Province, Anyang, 455002, P. R. China<br />

2 Department of Chemistry, Zhengzhou University, Zhengzhou, 450052, P. R. China<br />

Solanesol, a long-chain terpenoid alcohol mainly existing in tobacco leaves, is the starting<br />

material for many high-value biochemicals, including Vitamin K analogues and co-enzyme Q10<br />

which is useful in the treatment of heart diseases, cancers and ulcers. Solanesol itself can be used as<br />

cardiac stimulant, lipid antioxidant and antibiotics, and clinical trials are also developing the use of<br />

solanesol as an anti-cancer drug [1] . Phosphonates have important applications in flame retardancy,<br />

organic synthesis, and biological applications [2] . In the work described in this paper, three solanesyl<br />

phosphonates were synthesized using standard Arbuzov [3] action, and their structures were<br />

determined by ESI-MS, NMR and IR.<br />

solanesol<br />

7<br />

OH<br />

PBr3<br />

P(OR)3<br />

O<br />

P OR<br />

OR<br />

7<br />

a R= -CH3 b R= -CH2CH3 c R= -CH(CH3)2<br />

Scheme 1. Synthesis of solanesyl phosphonates<br />

References<br />

[1] M. Wang, Integr. Util. Chines. Resour. 2003, 2, 16.<br />

[2] Q. Yao, S. Levchik. Tetra. Lett. 2006,47:277-281.<br />

[3] Bhattachary, A.K, Thyarajan. G. Chem. Rev. 1981,81,415.<br />

82<br />

7<br />

Br


P-86<br />

SYNTHESYS AND STRUCTURAL PECULIARITIES OF PHOSPHORUS<br />

PENTACHLORIDE COMPLEXES WITH 4-DIMETHYLAMINOPYRIDINE AND<br />

N-METHYLIMIDAZOLE<br />

S.E.Pipko, L.V.Bezgubenko, A.D.Sinitsa, E.G.Kapustin, E.B.Rusanov, M.I.Povolotskii<br />

Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska 5, 02094, Kyiv-94, Ukraine<br />

Coordination chemistry of non-metals still remains a little-studied field. In particular, literature<br />

data on phosphorus complexes are rather controversial. We have recently studied the interaction of<br />

phosphorus pentachloride with 4-dimethylaminopyridine (DMAP) and N-methylimidazole (NMI)<br />

as some of the most effective N-donor ligands. The complexes [PCl4(DMAP)2] + Cl - (δ 31 Р -196 ppm.)<br />

(1a) and [PCl4(NMI)2] + Cl - (δ 31 Р -231 ppm.) (1b) were isolated and investigated. Both complexes<br />

react with H2O, EtOH or Et2NH very slowly. The relative hydrolytical stability of complexes<br />

PCl4L2 + Cl - makes them useful condensing agents. We have found that they are highly effective in<br />

the amide synthesis from carbonic acids and amines.<br />

N<br />

2<br />

N<br />

N<br />

Cl Cl<br />

N P N<br />

Cl Cl<br />

N<br />

1a<br />

Fig.1Fig.1<br />

PCl 5<br />

83<br />

+ Cl-<br />

N<br />

2<br />

N<br />

N<br />

N<br />

Cl<br />

P<br />

Cl<br />

Cl N<br />

Cl<br />

Fig. 1<br />

Molecular and crystal structure of 1b was determined by X-ray single crystal diffraction. It was<br />

found that the molecule of 1b has cis-orientation of NMI substituents (Fig.1) instead of the less<br />

sterically hindered trans-orientation. In the cationic part of the complex the phosphorus atom has<br />

four P-Cl bonds within the range 2.109-2.148Å, two P-N bonds (1.811 and 1.832 Å) and exhibits<br />

slightly distorted octahedral coordination with the angles at phosphorus atom in the range of<br />

87.57-91.50º. Two N-methylimidazole ligands are planar with the dihedral angle between them of<br />

59.6 o . The number of the short CH•••Cl contacts of the hydrogen atoms of N-methylimidazole with<br />

chlorine anion within the range of 2.65-2.85 Å have been found in the solid state. Six of the seven<br />

H•••Cl contacts have ‘chelate’-like nature that can strongly stabilize crystal topology of cis-isomer.<br />

This hypothesis was studied by DFT (B3LYP) calculations of cis- and trans-forms of 1a and 1b.<br />

For both cations trans-form is more preferable (ca. 6.4-6.45 kcal/mol). At the same time<br />

calculations of both cations with the Cl - anion show specific interactions between the anion and the<br />

hydrogens of heterocyclic moiety making the cis-form more stable (ca.15.8 –15.9 kcal/mol).<br />

1b<br />

N<br />

+<br />

Cl -


P-87<br />

CHEMISTRY OF FULVENE-TYPE P-HETEROCYCLIC COMPOUNDS<br />

Shigekazu Ito, Hideaki Miyake, Satoshi Sekiguchi, Matthias Freytag, Masaaki Yoshifuji †<br />

Department of Chemistry, Graduate School of Science, Tohoku University, Aoba, Sendai 980-8578, Japan<br />

1,3,6-Triphosphafulvene 1 was isolated as a formal trimer of a phosphanylidene carbenoid<br />

[Mes*P=CBr–Li: Mes* = 2,4,6-t-Bu3C6H2] and showed similar electrophilic reactivity to fulvene<br />

[1]. Indeed, alkyllithium nucleophiles react at the exo P atom of 1 to afford the corresponding<br />

cyclic anions 2. Alkylation of 2 with an alkyl halide showed regioselective P-alkylation to give<br />

1H-[1,3]diphospholes 3 [2]. On the other hand, protonation of 2 unexpectedly afforded P-H<br />

phosphorus ylides 4 [3]. The X-ray structure of 5 suggests unusual stability in air and moisture at<br />

room temperatures. Additionally, we succeeded in isolation and structure elucidation of tricyclic<br />

compound 6 as an isomer of 1 [4].<br />

Mes*<br />

P<br />

P<br />

1<br />

Mes*<br />

P<br />

Mes*<br />

Mes*<br />

R<br />

P<br />

P<br />

Mes*<br />

P<br />

Mes*<br />

Mes*<br />

2<br />

Mes* = 2,4,6-t-Bu3C6H2 R<br />

P<br />

P<br />

3<br />

Mes*<br />

P<br />

R'<br />

Mes*<br />

84<br />

R Mes*<br />

P<br />

H<br />

Mes*<br />

P<br />

P<br />

Mes*<br />

4: R = alkyl<br />

5: R = F<br />

Mes*<br />

t-Bu P<br />

P<br />

1,4-Diphosphafulvene 7 was obtained as a formal [3+2] cyclodimer of phosphaallene and its redox<br />

property was studied by its cyclic voltammetry. Compound 7 with electron-donating character<br />

formed a CT complex with TCNQ (7,7,8,8-tetracyanoquinodimethane) [5]. Chalcogenization of 2<br />

afforded the monochalcogenized products 8 (E = O, S),<br />

Ph<br />

Ph<br />

suggesting regioselective chalcogenization at the<br />

sterically less-hindered phosphorus atom as well as E/Z<br />

Mes*<br />

P P<br />

Mes* Mes*<br />

P<br />

E<br />

P<br />

Mes*<br />

isomerization around the exo C=C bond [6].<br />

Ph<br />

7<br />

Ph<br />

8<br />

Mes*<br />

† Present address: Department of Chemistry, the University of Alabama, Tuscaloosa 35487-0336, USA.<br />

Reference<br />

[1] S. Ito, H. Sugiyama, M. Yoshifuji, Angew. Chem. Int. Ed. 2000, 39, 2781.<br />

[2] S. Ito, H. Miyake, H. Sugiyama, M. Yoshifuji, Tetrahedron Lett. 2004, 45, 7019.<br />

[3] S. Ito, H. Miyake, M. Yoshifuji, T. Höltzl, T. Veszprémi, Chem. Eur. J. 2005, 11, 5960.<br />

[4] S. Ito, H. Miyake, H. Sugiyama, M. Yoshifuji, Heterocycles 2004, 63, 2591.<br />

[5] S. Ito, S. Sekiguchi, M. Yoshifuji, J. Org. Chem. 2004, 69, 4181.<br />

[6] S. Ito, M. Freytag, S. Sekiguchi, M. Yoshifuji, Sci. Rep. Tohoku Univ. 1st Ser. 2004, 81, 17.<br />

P<br />

6<br />

E = O, S<br />

t-Bu<br />

t-Bu


P-89<br />

SYNTHESIS AND COMPLEXATIONS OF A NOVEL STABLE CARBENE BEARING A<br />

PHOSPHORUS YLIDE<br />

Shin-ya Nakafuji, Junji Kobayashi, and Takayuki Kawashima<br />

Department of Chemistry, Graduate School of Science, The University of Tokyo<br />

7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan<br />

Since the first report by Arduengo in 1991, N-heterocyclic carbenes (NHCs) have been<br />

extensively studied. Due to their successful application as ligands for transition metal catalysts, the<br />

tuning of electronic and structural properties of NHCs has become an important subject. One of the<br />

modification of NHCs is changing amino groups adjacent to the carbene center to other -donating<br />

substituents. Thus, we focus our attention on carbene 1, which has a phosphorus ylide moiety.<br />

Because -donation of the ylide carbanion to the carbene center is almost same as an amino group<br />

and electronegativity of carbon is smaller than that of nitrogen, 1 is expected to exhibit a strong<br />

-electron donating ability to transition metals. Although several transition metal (Pt, Cr, Mo, W)<br />

complexes of carbene 1 (R = H) were reported 1) , they were synthesized from the corresponding<br />

isocyanide complexes, and available metals were also limited. In this report, we will present<br />

exploitation of general synthetic method of carbene 1 (R = CH3) and its complexation.<br />

Reaction of phosphonium salt 2 with mesityllithium gave a mixture of 2, carbene 1 ( P 10), and<br />

diphenylphosphine 3. Diphenylphosphine 3 seems to be formed by 1,3-phenyl shift of carbene 1<br />

during treatment of the reaction mixture. At lower temperature, however, carbene 1 was able to be<br />

trapped by elemental sulfur to give 4 quantitatively.<br />

To evaluate the ligand property of carbene 1, rhodium complexes 5 and 6 were prepared. Both 5<br />

and 6 didn’t show any decomposition in the course of work up with water. In the infrared spectrum,<br />

carbonyl stretching frequencies of 6 were observed at the lowest wave numbers among analogous<br />

carbene rhodium complexes, indicating that carbene 1 has a strong -donating ability.<br />

PPh 3<br />

N<br />

R<br />

1<br />

Ph 3P<br />

N<br />

CH3 2<br />

Ph 4B<br />

PPh 2<br />

Ph<br />

N<br />

CH3 3<br />

85<br />

PPh 3<br />

S<br />

N<br />

CH3 4<br />

PPh 3<br />

M<br />

N<br />

CH3 5 (M = Rh(cod)Cl)<br />

6 (M = Rh(CO) 2Cl)<br />

Reference<br />

1) Michelin, R. A.; Pombeiro, A. J. L.; Guedes da Silva, M. F. C. Coord. Chem. Rev. 2001, 218, 75.


P-91<br />

AN EFFICIENT SYNTHESIS OF α-(SUBSTITUTED PHENOXY ACETOXY)ALKYL<br />

PHOSPHINATES SODIUM SALTS<br />

Tao Wang 2 , Hong Wu He 1*<br />

1.Institute of Pesticide Chemistry, Central China Normal University, Wuhan, 430079 P.R.China<br />

2. College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330022, P.R.China<br />

One approach to design a inhibitor of Pyruvate dehydrogenase(PDH) with a novel structure by<br />

using biochemical reasoning was attempted. A series of α-(substituted phenoxyacetoxy) alkyl<br />

phosphinic acid methyl ester I and its corresponding phosphinate salts II were synthesized as<br />

potential inhibitor of PDH. The title compounds can be prepared from α-( substituted phenoxy<br />

acetoxy) alkyl phosphinic acid methyl esters I which were synthesized by the condensation of<br />

methyl α -hydroxyalkyl phosphinates with substituted phenoxyacetic chloride. This method<br />

provide a simple and efficient procedure for the synthesis of phosphinate derivatives containing<br />

sensitive groups to acid, base or water such as carboxylate ester. The formation of the title<br />

compounds II can be rationalized in terms of direct reaction of the esters I with oven-dried sodium<br />

iodide in the presence of molecular sieve (4A) in dried acetone under nitrogen for 4~6 hours. Some<br />

advantageous features are: (a) the title compounds II can be obtained from I in one-step; (b) the<br />

reactions only need short time under mild condition by a simple procedure. On the basis of this, the<br />

herbicidal activity of title compounds was evaluated in a set of experiment in greenhouse. Most of<br />

title compounds exhibited notable inhibitory activity to the growth of Echinochloa crusgalli (L.)<br />

Beauv.,Digitaria adscendens, Medicago sativa L., Brassica napus and Amaranthus retroflexus.<br />

O<br />

H3C P<br />

H3CO CH OH<br />

R<br />

Na I<br />

CH3COCH3 N2 O<br />

+ Cl CCH2O<br />

O<br />

H3C P<br />

NaO<br />

X<br />

Y<br />

O<br />

CH O CCH2O R<br />

II<br />

(C 2H 5) 3N<br />

DCM<br />

O<br />

H3C P<br />

H3CO X<br />

Y<br />

86<br />

CH O<br />

R<br />

O<br />

CCH2O Acknowledgments<br />

This work was supported by the National Basic Research Program of China (No: 2003CB114400) and the National<br />

Natural Science Foundation of China (No: 20372023).<br />

*Address correspondence to Hong-Wu He, Key Laboratory of Pesticide & Chemical Biology of<br />

Ministry of Education, Central China Normal University, Wuhan 430079, People’s Republic of<br />

China E-mail: hel208@mail.ccnu.edu.cn<br />

I<br />

X<br />

Y


P-93<br />

PHOSPHORYLACETIC ACID THIOAMIDES AS KEY SUBSTANCESFOR<br />

PHOSPHORYLATED HETEROCYCLES<br />

V.A. Kozlov, I. L. Odinets, D.V. Aleksanyan, P.V. Petrovskii, T. A. Mastryukova<br />

A.N. Nesmeyanov Institute of Organoelement compounds RAS, Vavilova str.28, Moscow,119991 Russia.<br />

E-mail: odinets@ineos.ac.ru<br />

Rather often thioamides serve as building blocks to obtain heterocycles of pharmaceutical<br />

importance. Recently we elaborated the facile synthetic route to phosphorus substituted carboxylic<br />

acid thioamides 1 and demonstrated their application in regioselective heterocyclization with<br />

dimethylacetylendicarboxylate leading to phosphorus containing thiazolidin-4-ones as potential<br />

drug-candidates. 2 Here we would like to demonstrate the ability of the above mention substrates to<br />

play a role of annelating reagent in the reaction with quinoxaline derivatives. As azines containing<br />

two and more heteroatoms undergo annelation with thioamides to yield annulated heterocycles<br />

possessing biological activity we investigate the reactivity of phosphorylated thiamides in such<br />

reactions.<br />

It was found out that interacting with 2,3-dichloroquinoxaline starting phosphoruscontaining<br />

substrates served as thionation agents resulting in bis(quinoxalinil)sulfide and<br />

phosphorylacetonitrile instead of the expected thiazolo[4,5-b]quinoxaline.<br />

N Cl<br />

N<br />

Cl<br />

(EtO) 2P(O)CH 2C(S)NH 2/2Et 3N<br />

87<br />

N Cl<br />

N<br />

S<br />

Cl<br />

(EtO) 2P(O)CH 2CN<br />

Despite the interaction with N-methylqunoxalinium iodide proceeded as annelation, it resulted in<br />

3-phosphorylated thiolactames – 3-phosphoryl-tetrahydroquinoxalino[2,3-b] -pyrrolidin-2-thiones<br />

in contrast to the similar reactions of non-phosphorylated thioamides giving thiazole derivatives.<br />

N<br />

N<br />

CH 3<br />

I Et 2NH/EtOH<br />

N<br />

N<br />

CH 3<br />

H<br />

OEt<br />

R 2P(O)CH 2C(S)NH 2<br />

R=OEt, Ph<br />

The structure and NMR features of the compounds obtained will be discussed as well the reasons<br />

of such difference in reactivity of phosphorylated and non-phosphorylated thioamides.<br />

Financial support: Russian Basic Research Foundation (grant 05-03-32692)<br />

References<br />

1. V.A.Kozlov, I.L.Odinets, K.A.Lyssenko, S.G.Churusova, S.V.Yarovenko, P. V. Petrovskii and T. A. Mastryukova. Izv.<br />

AN, Ser. khim., 2004, 4, 887-893 (Russ.Chem.Bull., 2004, 53(4), 925-931)<br />

2. V.A. Kozlov, I. L.Odinets, K. A.Lyssenko, S. G.Churusova, S. V.Yarovenko, P.V.Petrovskii, T.A.Mastryukova,<br />

Heteroatom Chem., 2005, 2, 159-168<br />

+<br />

N<br />

N<br />

N<br />

N<br />

CH3<br />

N<br />

S<br />

PR 2<br />

O


P-94<br />

THE FORMATION OF ION-RADICAL SALTS IN THE REACTION OF FULLERENE<br />

C60 WITH PHOSPHORUS (III) AMIDES<br />

I.P.Romanova, V.F.Mironov, G.G.Yusupova, О.А.Larionova,<br />

V.I.Morozov, O.G.Sinyashin<br />

A.E.Arbuzov Institute of Organic and Physical Chemistry, Kazan Research Centre of Russian Academy of<br />

Sciences, Arbuzov Str. 8, Kazan, Russia 420088, E-mail: romanova@iopc.kcn.<br />

Since the discovery of fullerene С60 it has been intensively studied as electron-withdrawing<br />

component of donor-acceptor dyads using for the creation of the molecular devices. It is known that<br />

such phosphorus donors as white phosphorus (P4) and phosphine oxides 1,2 form the molecular<br />

complex with С60. The phosphines are easily oxidized in presence of С60. The phosphine complexes<br />

with BH3 add to the fullerene moiety with the formation of the fullerene C60 acyclic derivatives 3 .<br />

Here the results of the fullerene interactions study with strong nucleophiles such as hexamethyl- and<br />

hexaethyltriaminophosphines 1 and 2 are discussed.<br />

1, 2<br />

C60<br />

5, 6<br />

hν<br />

1O2<br />

O2<br />

3C60<br />

7, 8<br />

R = Me (1, 3, 5, 7), Et (2, 4, 6, 8)<br />

P(NR2)3<br />

O=P(NR2)3<br />

7, 8<br />

1O2<br />

1, 2<br />

C60 P(NR2)3<br />

3, 4<br />

1O2<br />

C60<br />

+<br />

P(NR2)3<br />

+<br />

P(NR2)3<br />

5, 6<br />

88<br />

_<br />

C60<br />

-C60<br />

C60<br />

-C60<br />

+<br />

P(NR2)3<br />

A<br />

+ +<br />

(R2N)3P P(NR2)3<br />

B<br />

A - (1, 2)<br />

C60<br />

+<br />

P(NR2)3<br />

+<br />

P(NR2)3<br />

C<br />

Using the ESR, NMR 31 Р and UV-spectroscopy it was shown that fullerene C60 forms the<br />

ion-radical salts 3 and 4 with phosphites 1 and 2. These salts are unstable. Firstly, they are oxidized<br />

to amidophosphates 7 and 8. Secondly, they undergo the further transformations to the new<br />

ion-radical salts 5 and 6. The triads 5 and 6 are also unstable and gradually convert into diamagnetic<br />

compounds 7, 8 and fullerene oxides. The formation of triads 5, 6 is supposed to involve the<br />

intermediate formation of the strong electrophilic dication В. Financial support from RFBR (grant<br />

no. 05-03-32418) and OCCM Program no.7 is gratefully acknowledged.<br />

References<br />

[1] R.E.Douthwaite, M.L.H.Green, S.J.Heyes, M.J.Rosseinsky, J.F.C.Turner. J. Chem. Soc., Chem. Commun., 1994, 11,<br />

1367.<br />

[2] S.Bhattacharya, S.Banerjee, S.K.Nayak, S.Chattopadhyay, A.K.Mukherjee. Spectrochimica Acta, Part A. 2004, 60,<br />

1099.<br />

[3] S.Yamago, M.Yanagawa, H.Mukai, E.Nakamura. Tetrahedron. 1996, 52, 5091.


P-95<br />

NEW METHOD FOR THE ASYMMETRIC REDUCTION OF KETOPHOSPHONATES<br />

Vitaly V. Nesterov, Oleg I. Kolodiazhnyi<br />

Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, Murmanskaia 1, Kyiv,<br />

UKRAINE e-mail: oikol123@rambler.ru<br />

The chiral reducing reactants (S)-1 or (R)-1 were prepared from lithium, sodium or<br />

tetrabutylammonium borohydrides and (S)- or (R)-tartaric acids [1,2].<br />

HO<br />

HO<br />

O<br />

O<br />

H B H M+<br />

O<br />

-<br />

HO<br />

HO<br />

O<br />

O<br />

S-1 R-1<br />

89<br />

O<br />

O<br />

H B H M +<br />

O<br />

-<br />

M= Li, Na, Bu4N The reduction of - or -ketophosphonates with (S)- or (R)-1 leads stereoselectively to the<br />

formation of (R)-, or (S)- - or -hydroxyphosphonates, correspondingly, in high yields and very<br />

good stereoselectivity.<br />

The stereoselectivity of reaction depended on the absolute configurations of 1 and<br />

ketophosphonates. The reduction of di(1R,2S,5R)-menthyl ketophosphonates with the (R)-1<br />

proceeded with matched double asymmetric induction to give high enantiomeric excesses of<br />

hydroxyphosphonates (up to >96 % ee). The methodology was used for the preparation of<br />

enantiomericly pure phosphonate modified carnitine and other biologically active phosphonic acids<br />

in multigram scale.<br />

(RO) 2P(O)(CH2 ) n<br />

(R)-3, 4<br />

R'<br />

H<br />

OH<br />

1) (S,S)-1<br />

2) H3O (RO) 2P(O)(CH 2 ) n<br />

2<br />

R'<br />

O<br />

1) (R,R)-1 R'<br />

H<br />

HO<br />

(CH2 ) nP(O)(OR) 2<br />

(S)-3, 4<br />

TA - Tartaric Acid<br />

+ 2) H3O +<br />

, R=Et, Mnt (3), H (4)<br />

Asymmetric reduction of ketophophonates with reagent (S)-1 or (R)-1 (R’O)2P(O)(CH2)nCH(OH)R<br />

R R’ N ТА YIELD, % EE (OR DE),% CONFIG<br />

CH2CL MNT 1 R,R 93 96 S<br />

CH2CL ET 1 R,R 82 80 S<br />

PH ET 0 R,R 95 60 S<br />

PH MNT 0 R,R 95 92.5 S<br />

PH MNT 0 S,S 98 46 R<br />

PH ET 0 S,S 94 60 R<br />

2-FC6H4 MNT 0 R,R 97 82 S<br />

2-AN MNT 0 R,R 96 74 S<br />

PYPERONY<br />

L<br />

MNT 0 R,R 97 96 S<br />

References<br />

1 V. V. Nesterov and O. I. Kolodiazhnyi Tetrahedron: Asymmetry 2006, 17, 1023-1025<br />

2 O. I. Kolodiazhnyi Tetrahedron: Asymmetry 2005, 16, 3295-3340


P-96<br />

DIASTEREOSELECTIVE SYNTHESIS OF ENANTIOPURE CYCLIC α-<br />

AMINOPHOSPHONIC ACIDS<br />

Vladimir A. Alfonsov 1 , Charles E. McKenna 2 , Еvgenia V. Bayandina 1 , Boris Kashemirov 2 ,<br />

Liliya N. Yarmieva 1 , Olga N.Kataeva 1 , Lyudmila N.Punegova 1 .<br />

1 A.E.Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Centre of the<br />

Russian Academy of Sciences, 420088, Arbuzov Str., 8, Kazan, Russian Federation. Fax: +78432 75 5322; E-mail:<br />

alfonsov@iopc.knc.ru<br />

2 Department of Chemistry, University of Southern California, Los Angeles, CA 90089 USA<br />

The reaction of dialkylchlorophosphites with β-aldiminoalcohols proceeds by intramolecular<br />

cyclization with formation of 1,4,3-oxazaphosphorine derivatives. Imines containing an asymmetric<br />

center in the parent β-amino alcohols give rise to a new chiral center at position 3 of<br />

oxazaphosphorine ring with very high diastereoselectivity, resulting in a non-equal mixture of the<br />

two diastereomers A and B, which are distinguished only by their phosphorus atom configuration.<br />

Thus, we have found the new and efficient way of synthesis of cyclic aminophosphonic acids by the<br />

reaction of dialkylchlorophosphites with β-aldiminoalcohols.<br />

The well-known obtention of free phosphonic acids from the corresponding dialkyl esters by<br />

silyldealkylation with trimethylbromosilane provides in enantiopure form, the cyclic<br />

aminophosphonic acids as HBr salts.<br />

This work was supported by the Civilian Research and Development Foundation (grant no. RUC2-2638-KA-05) and<br />

the Russian Foundation for Basic Research (grant no. 03-03-33082).<br />

90


P-100<br />

STUDIES ON THE SYNTHESIS AND SEPARATION OF ISOLEUCINE<br />

OLIGOPEPTIDES ASSISTED BY PHOSPHORUS OXYCHLORIDE<br />

Wei-Na CAO 1 ,Li-Na TANG 1 ,Li MA 1 ,Kui LU* 1 ,Yu-Fen ZHAO 2<br />

1.Department of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450052;<br />

2.Department of Chemistry, Xiamen University, Xiamen 361005, China<br />

The 21st century is a century of life sciences, the substances with bio-activities have gained<br />

significant attraction, including oligopeptides[1]. Obviously, the synthesis and separation of<br />

oligopeptides have become a hotspot of research[2]. In this paper, the reaction of self-assembly into<br />

isoleucine oligopeptides from L-isoleucine with the assistance of phosphorus oxychloride was<br />

studied by using ESI-MS, and the separation methods for isoleucine oligopeptides library were also<br />

researched, the pure Ile-Ile was separated under the optimized conditions by using RP-HPLC. The<br />

results suggested that the suitable condition of direct synthesis was: the molar ratio of L-Ile and<br />

POCl3 of 1 to 1, the temperature 50℃, the solvent dioxane, reaction time 2h, and the Ile-Ile was<br />

characterized by ESI-MS/MS.<br />

Acknowledgements: The authors would like to thank the financial supports from the Chinese<br />

National Science Foundation (No.20272055, 20572016), Henan Province Science Foundation for<br />

Prominent Youth (No.0312000900) and Office of Education of Henan Province (No.<br />

2006KYCX017, 200510459015).<br />

References:<br />

1. Westheimer F.H., Science.1987, 235(4973): 1173~1178.<br />

2. Lu, K.; Liu, Y.; Zhou, N.; Chen, Y.; Feng, Y.-P. ; Guo, X.-F.; Chen, W.; Qu, L.-B.; Zhao, Y.-F. Acta Chim. Sinica<br />

2002, 60, 372 (in Chinese).<br />

91


P-101<br />

SYNTHESIS OF BIS(PHOSPHONATES) PYRROLIDINES DERIVATIVES<br />

Feng Gao, Ting-ting Wang, Ying-jun Song, Wen-hu Wang*<br />

Institute of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071,China<br />

The cycloadditon of azomethine ylides with electronic-deficient olefins provides an efficient<br />

method for synthesizing substituted pyrrolidines contained in many biologically active<br />

compounds. [1] Many works have been done in this field in recent years. However, few results have<br />

been reported about the reaction of azomethine ylides with vinylphosphonates. [2] We present herein<br />

our results on the reaction between in situ generated azomethine ylides 2 and tetraethyl<br />

vinylidenebis(phosphonates) 3.<br />

N-Metallated azomethine ylides 2 were generated by the reaction of arylidene imines 1 with<br />

AgOAc and triethylamine.These azomethine ylides undergo cycloaddition to 3 at room temperature<br />

with good regioselectivity and yields. The main product is compound 4. The structure of the two<br />

cycloadducts were confirmed by 1 H NMR, 31 P NMR and elemental analysis.<br />

Reference<br />

[1] Gribble, G. W. In Comprehensive Heterocyclic Chemistry; Katritzky, A. R., Rees, C. W., Scriven, E. F. V., Eds.;<br />

Pergamon: Oxford, U.K., 1996; Vol. 2, pp 207-257.<br />

[2] Jesùs, C. Ronald, G. etal,. Eur. J. Org. Chem. 2001, 1971-1982.<br />

92


P-104<br />

SYNTHESIS OF NOVEL BICYCLI CAGED PHOSPHATE DERIVATIVES<br />

Wen-Yan MO, Hong-Wu HE*<br />

Key Laboratory of Pesticide & Chemical Biology of Ministry of Education,<br />

Central China Normal University, Wuhan 430079, People’s Republic of China<br />

E-mail: hel208@mail.ccnu.edu.cn<br />

A series of novel bicyclic caged phosphates, containing α-substituted alkyl phosphonates have<br />

been synthesized. The precursors of α-substituted alkyl phosphonates 1 were obtained by<br />

dropping dimethylphosphite to aldehydes soultion in ice bath(0~5℃). Pentaerythritol reacts with<br />

POCl3, leading to preferable formation (87~95%) of 1-hydroxymethyl-4-phospha-3,5,<br />

8-trioxabicyclo[2,2,2]octane 2, which affords the corresponding acid 3 via oxidation using NH4VO3<br />

as catalyst. 3 was easily acylated by α-substituted alkyl phosphonates 1 to give bicyclic caged<br />

phosphates derivatives 4 with moderate or good yields. The structures of all title compounds were<br />

confirmed by IR, 1 H NMR,MS spectra and elemental analysis.<br />

O<br />

H3CO Et3N O<br />

P H + RCHO<br />

H3CO H<br />

H3CO CH2Cl P C R<br />

2 H3CO OH<br />

1<br />

C(CH 2OH) 4<br />

POCl 3<br />

1. SOCl2 2. CH2Cl2, Et3N, 1<br />

O<br />

O<br />

O P<br />

O<br />

2<br />

O<br />

O<br />

O P<br />

O<br />

4<br />

CH 2OH 65% HNO 3<br />

NH 4VO 3<br />

O<br />

C<br />

O H C<br />

R<br />

93<br />

O<br />

OCH3<br />

P<br />

OCH3 O<br />

O<br />

O P<br />

O<br />

3<br />

COOH<br />

R=CH 3, furyl,<br />

(un)substituted phenyl<br />

Acknowledgments<br />

Financial support by National Basic Research Program of China (2003CB114400) and NNSFof China ( 20372023)<br />

References<br />

[1] Verkade, J.G.; Reynold, L., J.Org.Chem. 25,633(1960).<br />

[2] Ozoe, Y.,Mochida, K., Eto, M., Agric. Biol. Chem., 46,2521(1982)<br />

[3] Ratz, R.F.W., US 3168549,1965<br />

[4] Ratz, R.F.W., US 3287448,1966<br />

[5] Scriven, Eric, F. V., Chem.. Soc. Rev., 12,129(1983)<br />

[6] Yu-Gui LI, Jian-Ji WANG, Tao HAN , Acta Chim. Sinica, 46,679(1988).<br />

[7] Yu-Gui LI, Xin-Long WANG, Xue-Feng ZHU, Chin. J. Org. Chem. 15,57(1995)<br />

[8]Yu-Gui LI, Xue-Feng ZHU, Qin WANG., Chem. J. Chin. Univ., 17,1394(1996)


P-106<br />

THE SYNTHESIS AND REACTIONS OF ALKYL<br />

2,3,3-TRIS(DIALKOXYPHOSPHORYL)PROPIONATES AND ALKYL<br />

2,3,3-TRIS(DIALKOXYPHOSPHORYL)ACRYLATES<br />

Yuen-Ki Cheong, Philip Duncanson, D. Vaughan Griffiths and Xiao Han<br />

School of Biological and Chemical Sciences, Queen Mary, University of London<br />

Mile End Road, London, E1 4NS, UK<br />

We have previously reported the preparation of novel ylide bisphosphonates such as 2 from the<br />

reaction of dichloromaleic anhydride 1 with trialkyl phosphite.[1] We have now investigated the use<br />

of these and related system as precursors for the preparation of some novel bis- and<br />

tris-phosphonates.<br />

RO O<br />

P<br />

O<br />

O<br />

(RO) 2P<br />

(RO) 2P O<br />

O<br />

OR<br />

RO O<br />

P<br />

RO<br />

HCl<br />

O<br />

ROH<br />

O<br />

DCM (RO) 2P<br />

(RO) 2P O<br />

2<br />

O<br />

O<br />

O<br />

Cl<br />

(RO) RO<br />

3P<br />

O<br />

Cl<br />

P<br />

O<br />

1<br />

3<br />

4<br />

OR<br />

O O<br />

RO<br />

P<br />

RO<br />

OR<br />

RO<br />

P<br />

RO OR<br />

O O<br />

Conversion of the ylide 2 to the trisphosphonate 4 can be readily achieved either via the anhydride<br />

3 or directly by heating 2 under reflux with the appropriate alcohol. Conversion of this<br />

trisphosphonate 4 to the corresponding acrylate is illustrated below for the case R=Et. Thus,<br />

deprotonation of 4 (R=Et) by the action of a base (such as EtONa or NaH) gave the chelate 5 (R=Et),<br />

which on treatment with bromine in the presnce of excess base underwent bromination and then<br />

elimination to give the acrylate 6 (R=Et).<br />

P<br />

4 (R=Et) 5 (R=Et) 6 (R=Et)<br />

OEt<br />

O O<br />

EtO<br />

P<br />

EtO<br />

OEt<br />

EtO<br />

P<br />

P<br />

EtO OEt<br />

O O<br />

OEt<br />

Na<br />

O O<br />

EtO<br />

EtONa<br />

P<br />

EtO<br />

OEt Br2 EtO<br />

P<br />

P<br />

EtO OEt<br />

O O<br />

OEt<br />

O O<br />

EtO<br />

P<br />

or<br />

EtO<br />

OEt<br />

NaH<br />

EtO<br />

P<br />

EtO OEt<br />

O O<br />

δ P 22.3 (d, J = 7 Hz)<br />

22.4 (dd, J = 57, 7 Hz)<br />

23.0 (d , J = 57 Hz)<br />

δ P 27.3 (d , J = 17 Hz, P-C-P)<br />

36.8 ( t, J = 17 Hz)<br />

94<br />

δ P 5.8 (1 P, dd, J = 83, 37 Hz)<br />

9.1 (1 P, dd, J = 40, 37 Hz)<br />

11.4 (1 P, dd, J = 83, 40 Hz)<br />

The reactions of the trisphosphonates 3, 4, and 6 have been investigated and will be reported. The<br />

reaction of 6 with benzylazides is of particular interest since it eventually results in the loss of one of<br />

the phosphonate groups and the formation of a novel bisphosphonate. The structure of this compound<br />

and its mode of formation will be discussed.<br />

Reference<br />

[1] P. Duncanson and D. V. Griffiths, icpc2004


P-112<br />

REACTIONS BETWEEN N-(THIO)PHOSPHORYL IMINES AND DIETHYLZINC<br />

Xinpeng Ma, Xinyuan Xu, Chungui Wang, Guofeng Zhao*, Zhenghong Zhou*, Chuchi Tang<br />

State Key Laboratory of Elemento-Organic Chemistry, Institute of Elemento-Organic Chemistry, Nankai University,<br />

Tianjin 300071, P. R. China<br />

Asymmetric addition of imine is a convenient and practical method for the preparation of<br />

synthetic valuable nitrogen-containing compounds, such as chiral amines, 1,2-diamines and α- or<br />

β-amino acids. Recently, significant progress has been witnessed in this area. 1 Phosphoryl group<br />

was one of the important N-protecting groups of imine. The asymmetric alkylation of<br />

N-diphenylphosphinoylimines with diethylzinc could be run smoothly in the presence of chiral<br />

copper catalysts or chiral 1,2-aminoalcohols. Since N-diphenylphosphinoylimines were the only one<br />

N-phosphoryl imine used in asymmetric reaction, we plan to extend this substrate to more available<br />

and cheap O,O-diethylphosphorylimine and its thio analogues.<br />

It was interesting that the change of the substituent on phosphorus atom in N-phosphoryl imine<br />

resulted in a total reversion of the direction of this reaction. The corresponding reduction product<br />

rather than the alkylation product was obtained exclusively. Ethylene was released from the reaction<br />

system at the same time. However, the addition of TMEDA, which has proven to be a strong<br />

coordinating ligand to zinc, led to the reversion of the reaction orientation. The normal ethylating<br />

product was obtained as the dominant product.<br />

Acknowledgment<br />

We are grateful to the National Natural Science Foundation of China (No. 20472033) for generous financial support for<br />

our programs.<br />

References<br />

[1] (a) Kobayashi, S.; Ishitani, H. Chem. Rev. 1999, 1069. (b) Vilaivan, T.; Bhanthuranavin, W. Current Org. Chem.<br />

2005, 9, 1315.<br />

95


P-113<br />

AZA-HENRY REACTION BETWEEN N-THIOPHOSPHORYL IMINES<br />

AND NITROMETHANE<br />

Xinpeng Ma, Xinyuan Xu, Chungui Wang, Guofeng Zhao*, Zhenghong Zhou*, Chuchi Tang<br />

State Key Laboratory of Elemento-Organic Chemistry, Institute of Elemento-Organic Chemistry, Nankai University,<br />

Tianjin 300071, P. R. China<br />

The aza-Henry (nitro-Mannich) reaction, the nucleophilic addition of nitroalkanes to imines to<br />

give α-nitroamine derivatives, is one of the most important tools for carbon-carbon bond formation<br />

and has been used for the synthesis of a vast array of 1,2-diamines and α-amino acids, which are<br />

valuable intermediates for the synthesis of many pharmaceutically active compounds. 1 Recently, we<br />

discovered that thermal condensation of acetals and different types of thiophosphoramide could<br />

conveniently afford N-thiophosphoryl imines in excellent yields with high purities. 2<br />

These<br />

N-thiophosphoryl imines are successfully employed as imine substrates in the aza-Henry reaction of<br />

nitromethane.<br />

The corresponding α-nitroamine derivatives 2 were obtained in almost quantitative yields in the<br />

presence of a catalytic amount of N,N,N’,N’-tetramethylguanidine (TMG, 10 mol%) under<br />

solvent-free conditions. The thiophosphoryl group in α-nitroamines 2 could be conveniently<br />

removed through acidic hydrolysis and methanolysis. Moreover, 2 could be readily transformed to<br />

1,2-diamines and α-amino acids via reduction or Nef reaction, respectively. Therefore, this<br />

procedure furnishes a convenient and practical synthetic method for 1,2-diamines and α-amino<br />

acids.<br />

Acknowledgments<br />

We are grateful to the National Natural Science Foundation of China (No. 20472033) for generous financial support for<br />

our programs.<br />

References<br />

[1] Westermann, B. Angew. Chem. Int. Ed. 2003, 42, 151.<br />

[2] Xu, X. Y.; Wang, C. G.; Zhou, Z. H.; Zeng, Z. B.; Ma, X. P.; Zhao, G. F.; Tang, C. C. Lett. Org. Chem. 2006, 3,<br />

640.<br />

96


P-114<br />

ORGANOCATALYTIC ASYMMETRIC SYNTHESIS OF<br />

α- HYDROXY PHOSPHONATES<br />

Xinyong Li, Weiwei Jin, Caibao Chen and Wen-Jing Xiao*<br />

Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China<br />

Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China<br />

wxiao@mail.ccnu.edu.cn<br />

Quinine and its derivatives have been used as organocatalysts in asymmetric<br />

hydrophosphonylation of aldehydes to synthesis α- hydroxy phosphonates. It was found that the<br />

hydrophosphonylation reaction worked very well in the presence of 10 mol% Quinine. Asymmetric<br />

synthesis α- hydroxy phosphonate also can be carried out using water as the reaction medium.<br />

O<br />

O<br />

10mol%Quinine<br />

EtO P<br />

H R H<br />

EtO<br />

toluene rt<br />

97<br />

R<br />

OH<br />

*<br />

P OEt<br />

OEt<br />

O<br />

References<br />

1) Davies, S. R.; Mitchell. M. C.; Cain, C. P.; Devitt, P. G.; Taylor, R. J.; Kee, T. P. J. Organometallic Chem. 1998,<br />

550, 29.<br />

2) Saito, B.; Katsuki, T. Angew. Chem. Int. Ed. 2005, 44, 4600.<br />

O<br />

HO<br />

N<br />

N


P-115<br />

THE AZA-MORITA-BAYLIS-HILLMAN REACTION OF N-THIOPHOSPHORYL<br />

IMINES CATALYZED BY 1,3,5-TRIAZA-7-PHOSPHAADMANTANE<br />

Xinyuan Xu, Chungui Wang, Zhenghong Zhou*, Chuchi Tang<br />

State Key Laboratory of Elemento-Organic Chemistry, Institute of Elemento-Organic Chemistry, Nankai University,<br />

Tianjin 300071, Peoples’ Republic of China<br />

In the reported aza-MBH reactions, tosyl and acyl are most often used as the imine’s<br />

N-protecting groups, probably because their protected imines have better reactivities. In contrast,<br />

N-phosphinoyl imine has been rarely used due to its troublesome preparation, although phosphinoyl<br />

could be easily deprotected via acidic hydrolysis from the aza-MBH reaction adduct. Up to date,<br />

there is only one report about the aza-MBH reaction of N-phosphinyl imines. 1 Recently, we<br />

discovered that thermal condensation of acetals and different types of thiophosphoramide<br />

conveniently led to the formation of N-thiophosphoryl imines in excellent yields with high<br />

purities.2 Herein, we report the 1,3,5-Triaza-7-phosphaadmantane (PTA)-catalyzed aza-MBH<br />

reaction of N-thiophosphoryl or N-thiophosphinoyl imines.<br />

The reaction took place smoothly to give the corresponding aza-MBH adducts 2 in fair to<br />

excellent yield. In addition, 2 could be easily deprotected through acidic hydrolysis or methanolysis.<br />

Therefore, this protocol provides a convenient and practical synthetic method for versatile<br />

intermediates α-methylene-β-amino ketone or acid derivatives.<br />

Acknowledgments<br />

We are grateful to the National Natural Science Foundation of China (No. 20472033) for generous financial support for<br />

our programs.<br />

References<br />

[1] Shi, M.; Zhao, G. L. Tetrahedron Lett. 2002, 43, 4499.<br />

[2] Xu, X. Y.; Wang, C. G.; Zhou, Z. H.; Zeng, Z. B.; Ma, X. P.; Zhao, G. F.; Tang, C. C. Lett. Org. Chem. 2006, 3,<br />

640.<br />

98


P-118<br />

POLARITY AND CONFORMATIONS OF<br />

1,2,4,5-TETRA(TERT-BUTYLPHOSPHA)CYCLOHEXANES IN SOLUTION<br />

Ya.A. Vereshchagina, a, b E.A. Ishmaeva, b D.V. Chachkov, a A.A. Gazizova, a Z.S. Novikova<br />

a<br />

Kazan State Technological University, K. Marks St., 68, Kazan, 420015, and<br />

b<br />

Kazan State University, Kremlevskaya St., 18, Kazan, 420008, Russian Federation;<br />

e-mail: yavereshchagina@yahoo.com<br />

We studied polarity and spatial structure of 1,2,4,5-tetra(tert-butylphospha)-cyclohexanes 1, 2 by<br />

the methods of dipole moments and quantum chemical calculations. Polarity of compounds 1, 2 was<br />

determined in solution at 25°C, the coefficients of calculated equations and experimental dipole<br />

moments are presented below.<br />

t-Bu<br />

t-Bu<br />

X<br />

P<br />

P<br />

P P<br />

X<br />

X<br />

X<br />

Bu-t<br />

Bu-t<br />

1 X = lone pair of electrons; 2 X = S<br />

№ Solvent α γ Por, cm 3 µexpt, D<br />

1 benzene 3.891 0.150 267.279 3.60<br />

2 dioxane 8.582 0.369 685.899 5.76<br />

Dipole moments of possible conformers of compounds 1, 2 were calculated using vector-additive<br />

scheme and methods of quantum chemistry (program Gaussian 98, method B3LYP/6-31G* for 1;<br />

program Priroda, method PBE/3z for 2).<br />

P<br />

P<br />

t-Bu<br />

t-Bu<br />

Bu-t<br />

Conformer<br />

t-Bu<br />

1a<br />

P<br />

P<br />

P<br />

Bu-t<br />

Bu-t<br />

ΔE, kcal . mole -1 7.33 0.00<br />

µtheor, D 0.00 1.80<br />

Conformer<br />

t-Bu<br />

t-Bu<br />

P<br />

P<br />

Bu-t<br />

P<br />

1c P<br />

Bu-t<br />

ΔE, kcal . mole -1 5.45 4.93<br />

µtheor, D 1.88 1.77<br />

Four different conformations 1a-1d were found for cyclic derivative P III according to the data of<br />

calculation. In all probability, the form of twisted chair 1b was energetically preferred in the<br />

conformational equilibrium of asymmetrical chair conformations.<br />

Chair form with trans-arrangement of identical substituents at the phosphorus atoms was<br />

preferred in the conformational equilibrium for compound 2 (theoretical calculations of the ΔE and<br />

dipole moments, the calculation of dipole moments using vector-additive scheme).<br />

99<br />

1b<br />

1d<br />

t-Bu<br />

t-Bu<br />

t-Bu<br />

P<br />

P<br />

t-Bu<br />

P<br />

P<br />

P<br />

P<br />

P<br />

Bu-t<br />

Bu-t


P-119<br />

NOVEL IONIC PHOSPHINE LIGANDS: THEIR SYNTHESIS AND APPLICATION IN<br />

SUZUKI COUPLING REACTION IN IONIC LIQUID<br />

Yan Chen,Guang-Ao Yu*,Yong Ren,Xiang-Gao Meng,Jin-Tao Guan,Sheng Hua Liu<br />

Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry,<br />

Central China Normal University, Wuhan,,430074, China<br />

The synthesis on phosphine ligand with cobaltocenium backbone was underdeveloped [1][2] .<br />

Herein we report a general procedure for the synthesis of novel phosphine-substituted<br />

cobaltocenium salts, and their usage as ligands for Suzuki coupling reaction in ionic liquid. 1,<br />

1’-Bis(dicyclohexylphosphino) cobaltocenim hexafluorophosphate (di-cypc + PF6 - ) (1a),<br />

1,1’-bis(di-iso-propylphosphino) cobaltocenium hexafluorophosphate (di-isoppc + PF6 - ) (2a),<br />

1,1’-bis(di-tert-butylphosphino) cobaltocenium hexafluorophosphate (di-tbpc + PF6 - ) (3a), and the<br />

monophosphine ligand Cc + PR2PF6 - (Cc + = cobaltocenium; R = Cy, 1b; R = i-Pr, 2b; R = t-Bu, 3b)<br />

were synthesized and characterized by elemental analysis, spectroscopy, and X-ray crystal<br />

diffraction techniques. These ligands were proved to be air-stable and suitable for Suzuki coupling<br />

reaction in ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate (BMIM + PF6 - ), owing<br />

high catalytic activity.<br />

NaCp + ClPR2 1. n-BuLi<br />

2.CoCl2 3.C2Cl6 Co + Cl -<br />

PR 2<br />

PR 2<br />

+<br />

Co + Cl -<br />

PR2 100<br />

NH 4PF 6<br />

Co + PR2 PF -<br />

6<br />

PR 2<br />

1a R= Cy<br />

2a R= i-Pr<br />

3a R= t-Bu<br />

+<br />

Co + PR2 - PF6 1b R= Cy<br />

2b R= i-Pr<br />

3b R= t-Bu<br />

References<br />

1) Brasse, C. C.; Englert, U.; Salzer, A.; Waffenschmidt, H.; Wasserscheid, P. Organometallics 2000, 19, 3818.<br />

2) Song, L.-C.; Yu, G.-A.; Su, F.-H.; Hu, Q.-M. Organometallics, 2004, 23, 4192.


P-120<br />

SYNTHESIS AND CHARACTERIZATION OF NOVEL BILE ACIDS DERIVED<br />

H-PHOSPHONATES CONJUGATES<br />

Yan Li, Yong Ju, * Yufen Zhao<br />

Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Ministry of Education, Department of<br />

Chemistry, Tsinghua University, Beijing 100084, P. R. China, Email: juyong@tsinghua.edu.cn,<br />

Bile acids are natural origin compounds and play a very important role in biological systems. The<br />

medicinal applications of bile acids and their conjugates were reported in numerous literatures 1,2 .<br />

Such as, antiviral and the antifungal properties 3-5 and as carriers of liver-specific drugs, absorption<br />

enhancers and as cholesterol level lowering agents 6,7 . Besides their biological importance, the<br />

amphiphilic properties, the rigid concave of the backbone and the unique disposition of hydroxyl<br />

groups on the one side of the molecule make these compounds attracting building blocks for the<br />

design of synthetic receptors 7,8 . Bile acids have also been introduced to polymers that may lead to<br />

the development of new biocompatible materials 9,10 . Here, the H-phosphnates of bile acids<br />

conjugated with alcohols and nucleosides were synthesized in “one pot” reaction. The structures of<br />

these novel bile acid conjugates were confirmed by IR, 31 P NMR, 1 H NMR and HRMS and the<br />

NMR spectra.<br />

OH<br />

OH<br />

OH<br />

O<br />

OCH 3<br />

i<br />

O<br />

O PH<br />

O<br />

O O<br />

O<br />

HP<br />

HP<br />

O<br />

O<br />

O<br />

101<br />

O<br />

OCH 3<br />

ii<br />

iii<br />

O<br />

O PH<br />

O<br />

O PH<br />

O<br />

O<br />

O<br />

PH<br />

O<br />

O O<br />

O PH<br />

O<br />

O<br />

PH<br />

O O O<br />

PH<br />

O<br />

O<br />

Project supported by the NSF of China (No. 20542004) and SRFDP of Higher Education (No.20050003104).<br />

References<br />

1. Jan Sjövall. Lipids, 2004, 39, 703.<br />

2. Enhsen A, Krame W, Wess G. Drug Discovery Today 1998, 3, 409.<br />

3. Salunke DB, Hazra BG, Pore VS, Bhat MK, Nahar PB, Deshpande MV. J Med Chem 2004, 47, 1591.<br />

4. Li CH, Peters AS, Meredith EL, Allman GW, Savage PB. J Am Chem Soc 1998, 120, 2961.<br />

5. Merritt M, Lanier M, Deng G, Regen SL. J Am Chem Soc. 1998, 120, 8494.<br />

6. Wess G, Kramer W, Enhsen A, Glombik H, Baringhaus KH, Bock K, et al. Tetrahedron Lett 1993,34,817<br />

7. Virtanen E, Kolehmainen Erkki. Eur J Org Chem 2004, 3385.<br />

8. Wallimann P, Marti T, Fürer A, Diederich F. Chem Rev 1997, 97,1567.<br />

9. Zhang YH, Zhu XX. Macromol Chem Phys 1996, 197, 3473.<br />

10. Zhu XX, Nichifor M. Acc Chem Res 2002, 35,539.<br />

O<br />

OCH 3<br />

O<br />

OCH 3


P-121<br />

STUDY OF THE REACTION BETWEEN N- (O, O-DIISOPROPYL) PHOSPHORYL<br />

AMINO ACIDS AND THE MIXED NUCLEOTIDES<br />

Yanchun Guo 1 , Shuxia Cao 1 , Yali Xie 1 , Xianli Wu 1 , Xincheng Liao 1 , Yufen Zhao 1,2*<br />

1. Key Laboratory of Chemical Biology and Organic Chemistry, Department of Chemistry, Zhengzhou University,<br />

Zhengzhou, 450052, P.R.China<br />

2. Key Laboratory for Bioorganic Phosphorus Chemistry of Ministry of Education, Department of Chemistry School of<br />

Life Sciences and Engineering, Tsinghua University, Beijing 100084, P.R.China<br />

Zhao’s group has found that N- (O,O-diisopropyl) phosphoryl amino acids (DIPP-aa) not only<br />

are capable of self-assembly into oligopeptides but also can act as the phosphoryl donor to<br />

phosphorylate nucleosides to nucleotides and oilgonucleotides 1,2 . Therefore, we selected four<br />

oldest N- (O,O-diisopropyl) phosphoryl amino acids 3 and reacted with the mixed<br />

nucleotides(A/C/G/U)in pyridine. In this system, dinucleoside monophosphate (XpY) and<br />

dinucleoside diphosphate (XpYp-cyclo)(X,Y=A,C,G,U) were observed, then the possible target<br />

products were validated by analyzing their cleavage pathways and their corresponding specific ions.<br />

Backbone fragmentation was characterized by abundant c-ions as the major sequence-defining<br />

fragment ion series. The results demonstrated that the four model reactions produced different kinds<br />

of XpY and XpYp-cyclo at various range of contents, which was attributed to the different reaction<br />

activity and selectivity. It might provide experimental proof for the assumption of Dipp-aa being<br />

the smallest intermediate of co-origin of nucleic acids and proteins during origins of life.<br />

Table1 ESI-MS n data for produces of DIPP-aa and four nucleosides m/z(IR/%)<br />

Amino acid Compounds Precursor ion Fragment ion(relative intensity%)<br />

Ala MS+ UpA 574.4(26)<br />

439.2(12),421.3(100),379.1(16),337.0(7),307.1(11),<br />

257.0(21), 195.1(11)<br />

574.4/307.1 279.2(17),236.2(44),208.2(31),178.2(86),162.2(12),112.5(100)<br />

UpC 550.3(10) 439.3(41),421.3(100),379.1(17),307.1(17),265.0(25),236.0(13)<br />

550.3/307.1 279.2(17),236.2(44),208.2(31),178.2(86),162.2(12),112.6(100)<br />

MS- UpU 549.3(17) 505.1(70),462.8(29),437.0(100),420.7(19),304.8(21),210.8(15)<br />

549.3/304.8(12) 111.3(100)<br />

Arg MS- CpGp-cyclo 648.8(7) 405.6(41),281.5(100)<br />

648.8/405.6(10) 281.4(100)<br />

GpGp-cyclo 688.7(100) 564.7(16),405.5(21),281.4(4)<br />

688.7/405.5(70) 281.4(100)<br />

Gly MS- UpC 548.0(18)<br />

504.6(16),485.6(9),435.9(25),402.7(24),383.3(13),321.3(9),<br />

303.6(19)<br />

548.0/303.6 110.2(100)<br />

References<br />

[1] Zhou W H, Ju Y, Zhao Y F, et al. Origins Life Evol. Biosphere, 1996, 26:547.<br />

[2] Zhao Y F, Hu J J, JU Y, Chin. Chem. Lett. 2000, 11(5):407.<br />

[3] Woese C, [J].J Mol Evol 2:205-208.<br />

102


P-127<br />

ORGANOCATALYTIC FRIEDEL-CRAFTS ALKYLATIONS OF INDOLES WITH<br />

DIALKYL<br />

Ying-Cen Guo, Dong-Pin Li and Wen-Jing Xiao*<br />

Key Laboratory of Pesticide and Chemical Biology, Ministry of Education College of Chemistry Central China<br />

Normal University 152 Luoyu Road Wuhan Hubei 430079 China<br />

wxiao@mail.ccnu.edu.cn<br />

A series of new optically active α- indolylphosphonates have been synthesized with high<br />

enantiometric purity via Friedel-Crafts alkylations using MacMillan second generation<br />

organocatalyst with TFA as the catalytic system. The reaction gave promising results using<br />

dichloromethane. The enantiomer excess (ee) of the product was up to 95%. This approach has<br />

proved suitable for the synthesis of a wide range of α- indolylphosphonates.<br />

R 1<br />

N<br />

R 2<br />

+<br />

O<br />

P<br />

R3 R<br />

O<br />

3O R 1 = 2-Me, 5-F, 6-Cl etc.<br />

R 2 = Me, Allyl, Bn R 3 = Me, Et, iPr<br />

O<br />

N<br />

103<br />

N<br />

H<br />

O<br />

Ph<br />

CH 2Cl 2, -78 o C, 48hr<br />

TFA<br />

R 1<br />

O<br />

R P<br />

3O R3O *<br />

N<br />

R 2<br />

up to 95% ee<br />

Reference<br />

1. MacMillan, D. W. C.; Austin, J. F. J. Am. Chem. Soc. 2002, 124(7), 1172.<br />

2. Sarkisyan, Z. M.; Makarenko, S.V.; Berestovitskaya, V. M.; Deiko L. I.; Berkova, G. A. Russ. J. of General Chem.<br />

2003, 73(8), 1328.<br />

O


P-129<br />

SYNTHESIS OF L-PHENYLALANINE DIPEPTIDE MEDIATED BY<br />

PHOSPHORUS OXYCHLORIDE AND SEPARATION BY RPLC<br />

Ying-yan Yao,Kui-Lu*<br />

(School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450052, China)<br />

Phosphorus play vital roles in the chemical evolution of life. The recent years, self-assembling<br />

into peptides for amino acids mediated by inorganic phosphorus has become a focus of science<br />

research [1,2]<br />

In this paper, the reactions of self-assembly into oligo-peptides for L-Phe mediated by inorganic<br />

phosphorus were studied. To find the best experimental condition, the solvent, reaction time,<br />

reaction temperature, the molar ratio of L-Phe and POCl3 were examined. These results were found:<br />

the maximum length of peptides for L-Phe could reach hexapeptide, but time affected little the<br />

reaction of self-assembly into oligo-peptides for L-Phe; The percent conversion of L-Phe in THF<br />

was higher than that in 1,4-dioxane or acetonitrile, so THF was propitious to self-assembly into<br />

peptides for L-Phe; Hoisting temperature could also speed the reaction and facilitate to produce<br />

phosphoryl peptides, but too high(>50 ℃ ) would induce many side reactions; The reaction of<br />

self-assembly into oligo-peptides would be speeded by increasing initial concentration of L-Phe. In<br />

conclusion, the proper condition of direct synthesis was the molar ratio of L-Phe and POCl3 of 1 to<br />

1, reaction temperature of 40 ℃ , reaction time of 2h and in THF as solvent.<br />

The oligopeptides of L-Phenylalanine were purified with reverse-phase high performance liquid<br />

chromatography (RP-HPLC) on C18 column, using methyl alcohol and water as mobile phase,<br />

detect wavelength at 254nm,. The effect of the ratio of methyl alcohol and water in volume on the<br />

separation was studied, and chromatographic conditions were optimized: With this optimized<br />

condition (CH3OH: H2O, v/v =40:60), effluent of each peak was collected respectively to be<br />

analyzed with ESI-MS/MS, this result indicated the self-assembly product could be separated with<br />

HPLC well. That will provide a new method for Synthesis and Separation of oligo-peptide.<br />

Figure HPLC analysis of mixture from L- phenylalanine mediated by POCl3<br />

Acknowledgements: The authors would like to thank the financial supports from the Chinese<br />

National Science Foundation (No.20272055, 20572016), Henan Province Science Foundation for<br />

104


Prominent Youth (No.0312000900) and Office of Education of Henan Province (No.<br />

2006KYCX017).<br />

References:<br />

1. Lu, K.; Liu, Y.; Zhou, N.; Chen, Y.; Feng, Y.-P. ; Guo, X.-F.; Chen, W.; Qu, L.-B.; Zhao, Y.-F. Acta Chim. Sinica<br />

2002, 60 , 372 (in Chinese).<br />

2. Zhou, N.; Lu, K.; Liu, Y.; Chen, Y.; Tang, G.; Cao, S.-X.; Qu, L.-B.; Zhao, Y.-F. Rapid Commun Mass Sp<br />

2002,16 (8) , 790<br />

105


P-130<br />

SYNTHESIS OF SOME NEW 2-(BIS-Β-CHLOROETHYLAMIN)<br />

7-METHOXYL-3-SUBSTITUTED PHENYL-4-METHYL-1, 3,<br />

2-BENZOXAZAPHOSPHORIN 2-OXIDES<br />

Yuan Jinwei 1 , Chen Xiaolan 1* , Qu Lingbo 1,2 , Yufen Zhao ,3<br />

1<br />

Department of Chemistry, Zhengzhou University, Zhengzhou, 450052, P. R. China<br />

2<br />

Anyang Normal College, Henan Province, Anyang, 455002, P. R. China<br />

1, 3<br />

The Key Laboratory for Bioorganic Phosphorus Chemistry, Department of Chemistry School Life Sciences and<br />

Engineering, Tsinghua University, Beijing, 10084, P. R. China<br />

Cyclophosphamine is an anticancer prodrug which has to be activated in the liver via conversion<br />

by cytochrome P-450 to the cytotoxic phosphoramide mustard alkylating species. In the last four<br />

decades, various cyclic and acyclic analogs of cyclophosphamide have been synthesized to<br />

elucidate structure-activity relationships for phosphoramidate alkylating agents [1,2] . Although these<br />

studies have not yet led to drugs superior to cyclophosphamide, it remains of great interest to<br />

improve the physicochemical and biological properties of cyclophosphamide through structural<br />

modification.<br />

In this paper, we report the synthesis of some new 2-(bis-β-chloroethylamin) 7-methoxyl-3substituted<br />

phenyl-4-methyl-1, 3, 2-benzoxazaphosphorin 2-oxides (Scheme 1) designed to increase<br />

tumor selectivity and overcome tumor resistance. The structures of the products were defined by<br />

ESI-MS, NMR and IR. Biological evaluation is in progress.<br />

H 3CO<br />

OH O<br />

H 3CO<br />

+<br />

O<br />

4a-g<br />

NH 2<br />

n-butanol<br />

R H 3CO<br />

P<br />

N<br />

O<br />

N<br />

R<br />

106<br />

OH<br />

1a-g<br />

R<br />

N<br />

NEt 3,Toluene<br />

H 3CO<br />

R=H, CH 3, C 2H 5, OCH 3, NO 2, F, Br, etc.<br />

NaBH 4<br />

methanol<br />

H 3CO<br />

OH<br />

O<br />

3a-g<br />

2a-g<br />

POCl 3<br />

P<br />

N<br />

O<br />

Cl<br />

R<br />

NEt 3 Toluene<br />

Scheme 1<br />

References<br />

1. Zhuorong Li, Jiye Han, Yongying Jiang et al. Bioorganic & Medicinal Chemistry 2003, 11:4171-4178.<br />

2. P V Govardhana, P Haranath, C Suresh Reddy et al. Indian Journal of Chemistry, 2005, 44B (7): 1432-1440.<br />

Cl<br />

Cl<br />

HCl HN<br />

Cl<br />

Cl<br />

Cl<br />

O<br />

P<br />

Cl<br />

N<br />

Cl<br />

Cl<br />

4a-g<br />

NEt3 Toluene<br />

NH<br />

R


P-132<br />

THE REACTION OF PYRROLE-2,5-DIONES AND THEIR HALOGENATED<br />

DERIVATIVES WITH TRIVALENT PHOSPHORUS COMPOUNDS<br />

Yuen-Ki Cheong, Philip Duncanson and D. Vaughan Griffiths<br />

School of Biological and Chemical Science, Queen Mary, University of London, Mile End Road, London, E1 4NS, UK<br />

As part of our studies into the reactions of organic carbonyl compounds with nucleophilic<br />

trivalent phosphorus compounds, we have been investigating the reactions of a number of<br />

substituted pyrrole-2,5-diones and their halogenated derivatives with trialkyl phosphites, dialkyl<br />

phosphonites and alkyl phosphinites. These studies have already resulted in the formation of novel<br />

products by some interesting reaction pathways.<br />

O<br />

O<br />

O<br />

(EtO) 3P<br />

1<br />

O<br />

NH<br />

107<br />

HN<br />

O<br />

O<br />

P(OEt) 2<br />

Thus, for example, the reaction of triethyl phosphite with pyrrole-2,5-dione gave not only the<br />

anticipated ylide 1 but also the phosphonate 2, whose structure was confirmed by X-ray<br />

crystallography. The incorporation of halogen substituents at C-3 and/or C-4 in the<br />

pyrrole-2,5-diones has proved to be a convenient route for introducing additional phosphonate<br />

groups into the final ylide. Thus, for example, the reaction of<br />

3-bromo-4-methyl-1-phenyl-1H-pyrrole-2,5-dione 3 with Ph2(MeO)P proceeded cleanly to give the<br />

crystalline ylide 4, whose structure was also confirmed by X-ray crystallography.<br />

Cl<br />

Cl<br />

O<br />

O<br />

N<br />

Br<br />

Me<br />

5<br />

O<br />

O<br />

NPh<br />

MeO<br />

P<br />

O<br />

(MeO) 2P<br />

(MeO) 2P<br />

O<br />

OMe<br />

MeO<br />

OMe<br />

Ph2P O<br />

(Ph) 2P<br />

Me<br />

O<br />

O<br />

N<br />

NPh<br />

3 4<br />

O<br />

O<br />

NEt<br />

O<br />

2<br />

O<br />

(HO) 2P<br />

O<br />

(HO) 2P<br />

(HO) 2P<br />

O<br />

6 7<br />

Extending this approach to 3,4-dihalogenated precursors led to the formation of ylidic<br />

bisphosphonates. Thus, for example, the N-allyl substituted system 5 reacts with trimethyl<br />

phosphite to give the ylide 6, which has been converted into the trisphosphonate 7. Polymerisation<br />

of this latter compound potentially offers a novel route to highly functionalised polymers.<br />

O<br />

O<br />

N


P-134<br />

SYNTHESIS OF DIPHENYL Α-(O-PHENYL<br />

BIS(2-CHLOROETHYL)AMIDOPHOSPHORYLAMINO)PHOSPHONATES<br />

Zhanwei Cui, Zhiwei Miao,∗ Jianfeng Zhang and Ruyu Chen<br />

State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, Nankai<br />

University, Tianjin 300071, People’s Republic of China. *Email: miaozhiwei@nankai.edu.cn<br />

The phosphoryl group is of fundamental significance in many of the most important molecules<br />

that control molecular replication, cell biochemistry and metabolic processes in all living species. 1-4<br />

On the other hand, α-Amino phosphonates constitute an important class of biologically active<br />

compounds, and their synthesis has been a focus of considerable attention in synthetic organic<br />

chemistry as well as in medicinal chemistry.<br />

Nitrogen mustards (NMs) are useful chemotherapeutic agents in the treatment of lymphoma,<br />

leukemia, multiple myeloma and ovarian carcinoma. 5 The antitumor activity of NMs has been<br />

attributed to their ability to cross-link the twin strands of DNA. Phosphoramide mustard is also an<br />

alklating agent that cross-links interstrand DNA, such as cyclophosphamide (CP),ifosfamide (IFA)<br />

and trofosfamide. 6-9 Cyclophosphamide is a widely used anticancer alklating agent that requires<br />

activation in vivo. It can liberate cytotoxic phosphoramide mustard and acrolein by β-elimination.<br />

However, acrolein, a byproduct of β-elimination, can cause hemorrhagic cystitis, a side effect<br />

observed during CP therapy. To overcome the shortcoming of CP, many different kinds of<br />

compounds containing phosphamide mustard have been designed and synthesized. 10-12 On that basis,<br />

we designed and synthesized the title compound to find novel anticancer prodrug.<br />

We report here a facile synthetic method for the preparation of Diphenyl α-(O-phenyl<br />

bis(2-chloroethyl)amidophosphorylamino)phosphonates (4). It consists of the reaction of O-phenyl<br />

bis(2-chloroethyl)amidophosphoroamidoate (1) with a substituted benzaldehyde or ketones (2) and<br />

triphenylphosphite (3) in the presence of acetyl chloride as catalysis. 13 The present method affords<br />

higher yields in the condensation reaction and high purify. (Scheme 1)<br />

Reference<br />

[1] Zhou, J.; Chen, R. Y. Phosphorus, Sulfur, Silicon 1996, 118, 247.<br />

[2] Bergman, J.; Van der Plas, H. C.; Simonyi, M. Heterocycles in Bioorganic Chemistry; RSC: Cambridge, 1991.<br />

[3] Meier, C. Angew. Chem., Int. Ed. Engl., 1996, 35, 70.<br />

[4] Yuan, C.; Qi, Y. Synthesis 1986, 821.<br />

[5] Balcome, S.; Park, S.; Danae R.; Dorr, R.; Hafner, L.; Phillips, L.; Tretyakova, N. Chem. Res. Toxicol. 2004, 17,<br />

950-962.<br />

108


[6] Sladek, N. E. Pharmacol. Ther. 1988, 37, 301-305.<br />

[7] Friedman, O. M.; Myles, A.; Colvin, M. Adv. Cancer Chemother. 1979, 1, 143-204.<br />

[8] Ludeman, S. M. Curr. Pharm. Des. 1999, 5, 627-643.<br />

[9] Colvin, O. M. Curr. Pharm. Des. 1999, 5, 555-560.<br />

[10] Borch, R. F.; Liu, J. W.; Schmidt, J. P.; Marakovits, J. T.; Joswig, C.; Gipp, J. J.; Mulcahy, R. T. J. Med. Chem.<br />

2000, 43, 2258-2265.<br />

[11] Hu, L. Q.; Yu, C. Z.; Jiang, Y. Y.; Han, J. Y.; Li, Z. R.; Browne, P.; Race, P. R.; Knox, R, J.; Searle, P. F.; Hyde, E.<br />

I. J. Med. Chem. 2003, 46, 4818-4821.<br />

[12] Jain, M.; Kwon, C. H. J. Med. Chem. 2003, 46, 5428-5436.<br />

[13] Yuan, C.; Qi, Y. Synthesis .1988, 472.<br />

109


P-138<br />

MODIFIED ALKALOIDS AS ORGANOCATALYSTS FOR THE ASYMMETRIC<br />

SYNTHESIS OF ORGANOPHOSPHORUS COMPOUNDS<br />

A.O. Kolodiazhnaya, V.P.Kukhar, O.I. Kolodiazhnyi<br />

Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine,<br />

Murmanskaya str. 1, Kiev, 02094 Ukraine<br />

Organocatalysis is the acceleration of chemical reactions with a substoichiometric amount of an<br />

organic compound which does not contain a metal atom.<br />

As an important subset of the larger field of organocatalysts, interest in amino acid and<br />

peptide-based catalysts has increased over the past decade. Important progress has been made in the<br />

development of asymmetric reactions with amino acid (proline) and peptide-based catalysts.<br />

Cinchona alkaloids 1 (cinchonine, cinchonidine, quinine, etc.) are accessible and effective reagents<br />

for the asymmetric synthesis and are widely in organic chemistry [1].<br />

In this work we have studied the modified alkaloids 1-3 as organocatalysts for phospho-aldol<br />

reaction. We have found that the bifunctional cinchona derivatives 1-3 act as asymmetric<br />

catalysts in the phosphor-aldol reaction. By means of these catalysts both optical antipods of<br />

hydroxyalkylphosphonic acids have been obtained. Good enantiomeric excesses were achieved with<br />

activated aromatic aldehydes.<br />

Stereoselectivity of catalysts in case of a single asymmetric induction (R=Et) was good and high<br />

in case of a double and triple asymmetric induction. Products 4,5 were purified by crystallization<br />

and were isolated as chemically and optically pure compounds. The optical purity of these<br />

compounds was studied by means of NMR chiral solvating reagents [1]. The absolute configuration<br />

of the new stereogenic center in 4 and 5 was also assigned by analogy with other<br />

hydroxyphosphonates using the method of chemical correlation.<br />

The most effective were catalysts obtained on the base of quinine and cinchonidine (R=H,<br />

R’=PhCH2)<br />

N<br />

OR'<br />

OR<br />

N<br />

H<br />

N<br />

OR'<br />

OR<br />

1 2<br />

R'<br />

(RO) 2 P(O) OH<br />

H<br />

110<br />

N<br />

H<br />

N<br />

R=H, OMe;<br />

R' = Me3Si, Ph2P, Me, PhCH2 R'CH=O<br />

R'CH=O<br />

(RO) 2P(O)H 1 DBU or 2<br />

4 5<br />

R'<br />

3<br />

(RO) 2 P(O) H<br />

OH<br />

References<br />

1 O.I. Kolodiazhnyi Tetrahedron: Asymmetry 2005, 16, 3295.<br />

2 A.O. Kolodiazhnaya, V.P.Kukhar, O.I. Kolodiazhnyi J.Gen.Chem.Russ, 2006, 76, 1342.<br />

N


P-144<br />

REACTIONS OF AMINOACETYLENEPHOSPHONATES WITH<br />

N-NUCLEOPHILIC REAGENTS<br />

Anastasia V. Aleksandrova, Alla V. Dogadina, and Boris I. Ionin<br />

St. Petersburg State Technological Institute (Technical University), Moskovskii pr., 26, St. Petersburg, 190013, Russia,<br />

E-mail: ana_alexandrova@mail.ru<br />

Aminoacetylenephosphonates (phosphorylated ynamines) thanks to their structure are able to add<br />

neutral N-ucleophilic reagents across the triple carbon-carbon bond and these reactions are carried<br />

out strongly regioselectively with the formation of new interesting compounds possessing potential<br />

biological activity. We performed a complex investigation of the reactions of “typical”<br />

aminoacetylenephosphonates (i.e. obtained by the described method from<br />

chloroacetylenephosphonates and high-basic secondary amines [1]) with primary and secondary<br />

amines differ by their basic properties and steric characteristics. Thus, we found that at the reactions<br />

of phosphorylated ynamines with both primary and secondary amines, the basic property of the<br />

involved amine is significant for the chemoselective formation of the corresponding phosphonate<br />

structure. Reactions of aminoethynephosphonates with the primary amines with pKa 1-5 (mainly,<br />

aromatic amines) and secondary amines of the same basicity lead to formation of unsymmetrical<br />

phosphorylated acetamidines (Scheme 1) and 2,2-diaminoethenphosphonates (Scheme 2)<br />

respectively [2,3] in the absence of a catalysts.<br />

1 h, Δ<br />

(RO) 2PC CNR'2 H2NAr (RO) 2PCH2C CCl4 O O<br />

NAr<br />

Scheme 1<br />

NR'2 R=Me, Et; NR'2= NEt2, N[(CH2) 2] 2, N(CH2) 5; Ar= Ph, 4-MePh, 4-MeOPh, 4-ClPh, 2-ClPh, etc.<br />

(RO)<br />

2-3 h, Δ<br />

2(O)P NR'2 (RO) 2PC CNR'2 HNR''2 CCl4 O<br />

H NR''2 R=Me, Et; NR'2=NEt2, N(CH2) 5; HNR''2=HN(Me)Ph, HN(Ph)CH2Ph, H N<br />

111<br />

Scheme 2<br />

Further, we found that reactions of aminoacetylenephosphonates with low-basic and high-basic<br />

primary and secondary amines proceed more difficultly under rigid conditions or in the presence of<br />

acid catalysts (we used boron trifluoride etherate) with the formation of corresponding<br />

phosphonates or amidophosphates (with high-basic primary amines). Amines with bulky fragments<br />

such as t-butyl amine react with investigated ynamines by a specific way: the main product of this<br />

reaction is phosphorylated diaminoethene [4]. Thus, we showed that composition of the products of<br />

reactions of phosphorylated ynamines with primary and secondary amines depends on both basic<br />

property of the amine and its steric structure.<br />

References<br />

[1] Garibina, V.A., Dogadina, A.V., Ionin, B.I., and Petrov, A.A., Zh. Obshch. Khim., 1979, vol. 49, no. 10, p.<br />

2385-2386<br />

[2] Panarina, A.E., Aleksandrova, A.V., Dogadina, A.V., and Ionin, B.I., Rus. J. Gen. Chem., 2005, vol. 75, no. 1, p. 3-8<br />

[3] Aleksandrova, A.V., Dogadina, A.V., and Ionin, B.I., Rus. J. Gen. Chem., 2005, vol. 75, no. 10, p. 1664-1666<br />

[4] Panarina, A.E., Aleksandrova, A.V., Dogadina, A.V., and Ionin, B.I., Rus. J. Gen. Chem., 2004, vol. 74, no. 9, p.<br />

1459-1460


P-154<br />

TEMPLATE-DIRECTED SYNTHESIS OF PHOSPHOROUS CONTAINING<br />

MACROCYCLES:STRUCTURE/REACTIVITY-RELATIONSHIPS<br />

S. Bozkurt, S. Ekici, D. Jaspers, M. Nieger, E. Niecke*<br />

Anorganisch-Chemisches Institut der Universität Bonn, Germany<br />

An efficient synthetic strategy towards macrocycles is reported, which gives access to ligands with<br />

discriminative functionality and redox activity The strategy is based on a coupling reaction between<br />

two alkali metal-fixed, carbanionic centers I (template) and two specifically connected electrophilic<br />

centers II (substrate). A macrocyclic ate-complex III is formed by a two fold P-C coupling reaction.<br />

Subsequently, III can be converted to the neutral ring system IV by electrophiles (scheme). Insights<br />

into structure/reactivity relationships for transition metal complexes V from these macrocycles are<br />

reported.<br />

References:<br />

[1] S. Ekici, D. Gudat, M. Nieger, L. Nyulászi, E. Niecke, Angew. Chem. Int. Ed. 2002, 41, 3367.<br />

[2] S. Ekici, M. Nieger, R. Glaum, E. Niecke, Angew. Chem. Int. Ed. 2003, 42, 435.<br />

[3] S. Bozkurt, Thesis, University of Bonn 2004.<br />

[4] S. Ekici, Thesis, University of Bonn 2005.<br />

[5] S. Ekici, D. Jaspers, E. Ertürk, M. Nieger, A. Berkessel, E. Niecke, in preparation.<br />

[6] S. Ekici, D. Jaspers, M. Nieger, M. Kogei, C. Schalley, E. Niecke, in preparation.<br />

112


P-159<br />

SYNTHESIS AND STRUCTURE OF THIOPHENE, SELENOPHENE, AND RELATED<br />

COMPOUNDS CARRYING FOUR PHOSPHORYL GROUPS<br />

Shigeru Sasaki, Kazutaka Adachi, Masaaki Yoshifuji, and Noboru Morita<br />

Department of Chemistry, Graduate School of Science, Tohoku University<br />

Aoba, Sendai 980-8578, Japan<br />

E-mail: sasaki@mail.tains.tohoku.ac.jp<br />

Construction of the cyclic compounds fully substituted by phosphorus functional groups has<br />

attracted considerable attention, since intramolecular interactions between the phosphorus<br />

functional groups with the ring systems as well as with the neighboring phosphorus functional<br />

groups and construction of various molecular assembly based on coordination or hydrogen bond<br />

formation are expected. Such compounds can be potential candidates for various novel materials<br />

especially for biomedical materials taking various functions of phosphoric acid and its derivatives<br />

in biological systems into consideration. Recently, we reported synthesis of the<br />

( η 4 -tetraphosphorylcyclobutadiene)cobalt complexes from the diphosphorylacetylenes and<br />

construction of the one-dimensional coordination polymer.1 Herein, we report formation of<br />

dihydrotetraphosphorylthiophene 2 from diphosphorylacetylene 1, oxidation of 2 to<br />

tetraphosphorylthiophene 3, and analogous synthesis of the corresponding selenium compounds 4<br />

and 5.<br />

Reaction of less than a half equivalent of sodium hydrosulfide with 1 in ether gave<br />

dihydrothiophene 2. Although attempted aromatization of 2 with o- or p-chloranil, or DDQ resulted<br />

in recovery of 2, oxidation of 2 with mCPBA afforded the corresponding sulfoxide, and dehydration<br />

of the sulfoxide gave thiophene 3. Employment of sodium hydroselenide in place of sodium<br />

hydrosulfide gave 4, and oxidation of 4 with mCPBA afforded 5. Esters 2 and 3 can be converted to<br />

the corresponding phosphonic acids. Detailed structures and reactivities of these tetraphosphoryl<br />

heterocycles will be discussed.<br />

References<br />

1) Sasaki, S.; Tanabe, Y.; Yoshifuji, M. Chem. Commun. 2002, 1876; Sasaki, S.; Kato, K.; Tanabe, Y.; Yoshifuji, M.<br />

Chem. Lett. 2004, 33, 1004.<br />

113


P-164<br />

SYNTHESIS OF NEW β-AMINO-DERIVATIVES OF ALKENYLPHOSPHONATES<br />

R.A.Cherkasov, N.G.Khusainova, O.A.Mostovaya, E.A.Berdnikov, S.M.Rybakov<br />

Kazan State University, Kremlevskaya str.18, Kazan, 420012, Russia<br />

e-mail: narkis.khusainova@ksu.ru; rafael.cherkasov@ksu.ru<br />

The development of synthesis methods of the polyfunctionalized compounds is very important<br />

because they are used as extracting agents for noble metals, biological active substances. High<br />

reactivity of phosphorylated allenes enables to use them in the synthesis of new β-aminoderivatives<br />

of alkenylphosphonates. We have studied the interaction of 3,3-dimethylallenylphosphonates with<br />

1,2-diaminoethan.<br />

Me<br />

-<br />

Me<br />

(EtO) 2P(O)CH C C<br />

I<br />

Me<br />

+<br />

H 2NCH 2CH 2NH 2<br />

(EtO) 2P(O)CH<br />

114<br />

C<br />

H 2N<br />

II A<br />

+<br />

Me<br />

Me<br />

Me<br />

+<br />

NH 2<br />

C<br />

CHP(O)(OEt) 2<br />

Me<br />

Me<br />

(EtO) 2P(O)CH2 C<br />

(EtO) 2P(O)CH C<br />

Me<br />

Me<br />

N<br />

HN<br />

N<br />

NH<br />

Me<br />

Me<br />

C CH<br />

C CHP(O)(OEt)<br />

2P(O)(OEt) 2<br />

2<br />

Me<br />

Me<br />

IV<br />

III<br />

The X-ray data is showed that the reaction of diethyl-3,3-dimethylallenylphosphonate I with<br />

diamine II proves the formation of 2:1 addition product with enamino-structure III. By 1 H and 31 P<br />

NMR spectroscopy it was determined that enamine III in solvents proves the formation of<br />

tautomeric enamines and imines IV.<br />

We have investigated reactions of 3,3-dimethylallenylphosphonates with 2-aminobenzo-thiazole<br />

V. By X-ray diffraction analysis it was determined that the reaction of diethyl<br />

3,3-dimethylallenyl-phosphonate I with thiazole V involves the endocyclic N atom of compound V<br />

and the 1,2-double bond of phosphonate I.<br />

-


P-165<br />

DITHIOPHOSP ORYLATION OF CYCLIC MONOTERPENES<br />

Il’yas S. Nizamov 1, 2 , Artiem V. Sofronov 1 , Rafael A. Cherkasov 1 , Liliya E. Nikitina 3<br />

1<br />

Kazan State University, Kremlievskaya Str., 18, Kazan, 420008, Russia<br />

e-mail: Ilyas.Nizamov@ksu.ru lyas.Nizamov@ksu.ru<br />

2<br />

A.E. Arbuzov Institute of Organic and Physical Chemistry, Arbuzov Str., 8, Kazan, 420088, Russia,<br />

3 Kazan State Medical University, Butlerov Str., 49, Kazan, 420012, Russia<br />

There is a considerable interest in derivatives of cyclic monoterpene series compounds containing<br />

functional groups due to their possible use as biological activity substances. The importance of<br />

these compounds is also related to their skeleton structure transformations. O,O-Dialkyl<br />

dithiophosphoric acids have been reported to react with terpenes such as -pinene and dipentene at<br />

100-200 o C with the formation of additives for lubricants [1, 2]. We assumed that the initial<br />

products obtained in these patent works undergo decompositions under severe conditions used. We<br />

have carried out the reactions of dithiophosphoric acids with such terpenes as racemic camphene,<br />

(+)-limonene, (1S)-(-)- -pinene and 3-carene under milder conditions and search appropriate<br />

catalysts of addition reactions. We have found that these reactions occur at room temperature for<br />

1-3 h in the presence of catalytic amounts of anhydrous ZnCl2 to yield adducts formed in<br />

accordance with Markovnikow’s rule. In the case of camphene the adduct formation is accompanied<br />

by skeleton transformation into norbornane structure.<br />

S<br />

(RO)<br />

2<br />

PSH +<br />

R = Et, Pr-i<br />

ZnCl 2<br />

(1 %)<br />

20 o C, 1-2 h<br />

115<br />

S<br />

S-P(OR) 2<br />

The reactions O,O-dialkyl dithiophosphoric acids with (+)-limonene proceed with the participation<br />

of the exocyclic C=C bond.<br />

S<br />

(RO)<br />

2<br />

PSH +<br />

R = Et, Pr-i<br />

ZnCl 2<br />

(1 %)<br />

20 o C, 2-3 h<br />

S<br />

S-P(OR) 2<br />

The reactions studied are facilitated by Lewis acid cataysts (NiCl2, CuCl, CuCl2, FeCl3, BF3 . Et2O,<br />

AlCl3). The reactions of O,O-dialkyl dithiophosphoric acids with (1S)-(-)- -pinene can also be<br />

performed non-catalytically.<br />

References:<br />

[1] Pat. US 2611728 (1952). / Barlett J.H., Rudel H.W., Cyphers E.B., Chem. Abstr. 1953, 43, 930a.<br />

[2] Pat. US 2665295 (1954). / AUGUSTINE F.B., Chem. Abstr. 1954, 48, 12807F.


P-171<br />

GREEN SYNTHESIS OF PHOSPHORAMIDES BY TRIMETAPHOSPHATE(P3m)<br />

NI, F.; Fu, C.; Sun, S. T.; Zhao, Y. F<br />

Key Lab of Chemical Biology of Fujian Province, Department of Chemistry, Xiamen University<br />

Xiamen, 361005, China<br />

A green synthesis method with organic reagent free and efficient purificaiton procedure was<br />

developed to synthesize the phosphoramides, such as N-phosphoryl amino acids and N-phosphoryl<br />

dipeptides. This synthesis used trimetaphosphate (P3m) , a cheap and easily available phosphate, as<br />

the phosphorylated reagent and came out with target compounds and inorganic phosphates, later of<br />

which could be recycled to produce P3m.<br />

O O<br />

3Na<br />

P<br />

O O<br />

O O + H2N R<br />

P P<br />

O<br />

O O<br />

pH=10.5-11.5<br />

H 2O<br />

NH2-R= α Amino acids,<br />

β Amino acids,<br />

γ Amino acids,<br />

dipeptide<br />

O<br />

O<br />

P P<br />

O P<br />

O<br />

O<br />

O O<br />

O<br />

O<br />

O<br />

NH CH C<br />

H<br />

O<br />

O<br />

P P<br />

O P<br />

O<br />

O<br />

O O<br />

O<br />

O<br />

NH R<br />

116<br />

Scheme<br />

O -<br />

CaO<br />

fast<br />

NaOH<br />

O<br />

O<br />

O<br />

O<br />

O<br />

O<br />

O<br />

P<br />

O<br />

O<br />

P<br />

O<br />

P<br />

NH<br />

CH2<br />

OH -<br />

O<br />

2Na<br />

NH R<br />

O<br />

O<br />

P<br />

+ P2<br />

3Na<br />

NH R<br />

+ P2<br />

+ Pi


P-175<br />

PHOSPHINOGLYCINES AND PHOSPHINOGLYCOLATES<br />

J. Heinicke, a J. Lach, a N. Peulecke, a P. G. Jones, b I. Dix c<br />

Universität Greifswald a (Germany), Technische Universität Braunschweig b (Germany),<br />

University Göttingen c (Germany)<br />

A one-pot three component synthesis of novel α-phosphino glycines and α-phosphino glycolates<br />

is presented.<br />

(HO)2CHCOOH<br />

1/2 cHex2P +<br />

Et2NH2 + cHex2PH + Et2NH<br />

+<br />

5<br />

CH<br />

OH<br />

COO -<br />

+ Ph2PH + AlkNH2<br />

2<br />

Alk<br />

H 2N<br />

+ *<br />

O<br />

HO *<br />

O<br />

4<br />

117<br />

PPh 2<br />

O -<br />

H 2O<br />

PPh2<br />

O -<br />

1<br />

AlkNH3 +<br />

+ Et 2S BH 3<br />

S (MeOH)<br />

H2N<br />

Alk BH3<br />

+ *<br />

O<br />

H2N<br />

PPh2<br />

O -<br />

Alk S<br />

Chiral amines induce high diastereoselectivity and allow, in suitable cases, one-step syntheses of<br />

chiral phosphine ligands. Crystal structure analysis gives evidence on the preferred configuration.<br />

Properties of the novel compounds and first examples of use in catalysis are presented.<br />

Reference<br />

[1] J. Heinicke, N. Peulecke, DE 10 2004 029 697.9 (AT: 15. 06. 2004), DE 10 2004 029 698.7 (AT: 15.<br />

Juni 2004), PCT/DE2005/000969 (AT: 26. 05. 2005), PCT/DE2005/000970 (AT: 26. 05. 2005).<br />

+ *<br />

O<br />

2<br />

PPh2<br />

O -<br />

3


P-178<br />

STEREOSPECIFIC PREPARATION OF P-CHIROGENIC PHOSPHIDE BORANES FROM<br />

THE CORRESPONDING CHLOROPHOSPHINES<br />

H. Lauréano, a G. Morata, a M.L. Auclair, a J.C. Henry, b P. Richard, a C. Darcel a and S. Jugé a*<br />

[a] Inst. Chim. Mol. de l'Université de Bourgogne,UMR CNRS 5620, 9 av. A. Savary,<br />

21078 Dijon, France; Fax 33 3 80 39 60 98; e-mail: Sylvain.Juge@u-bourgogne.fr<br />

[b] SYNTHELOR SAS- 102 impasse H. Becquerel, Dynapôle de Ludres-Fléville 54510 Ludres, France<br />

In the recent past, significant advances have been made for the asymmetric synthesis of<br />

P-chirogenic phosphorus ligands, owing to the use of borane protecting group. The synthesis of<br />

such ligands is usually performed with phosphorus-carbon bonds formation using P-chirogenic<br />

phosphinous derivatives 1 or phosphide boranes, 2,3 as electrophilic or nucleophilic building blocks,<br />

respectively. Until now, the P-chirogenic phosphides borane are usually prepared by deprotonation<br />

of the corresponding secondary phosphine boranes in presence of sparteïne, 2 or by metal reduction<br />

of a phosphinous borane precursors. However, this method gives high stereoselectivities only when<br />

the phosphine boranes bears a sterically hindered substituents as adamantane or t-butyl.<br />

Cl<br />

BH 3<br />

P<br />

Ph<br />

R 1<br />

t-BuLi<br />

-78°C<br />

Li<br />

1 2<br />

BH 3<br />

P<br />

Ph<br />

We report herein a new efficient route to the P-chirogenic phosphide boranes 2, by<br />

stereoselective metal halide exchange of the corresponding chlorophosphine boranes1 with the<br />

t-butyllithium. The phosphide boranes 2 were then used for the preparation of various secondary 3<br />

or tertiary phosphine boranes 4 in high enantiomeric excesses, by protonation with AcOH or<br />

trapping with an alkyl halide, respectively.<br />

Reference<br />

1) Bauduin, C.; Moulin, D.; Kaloun, E.B.; Darcel, C.; Jugé, S., J. Org. Chem., 2003, 68, 4293-4301.<br />

2) Wolfe, B.; Livinghouse, T. J. Am. Chem. Soc. 1998, 120, 5116-5117.<br />

3) Miura, T.; Yamada, H.; Kikuchi, S.-I; Imamoto, T. J. Org. Chem. 2000, 65, 1877-1880.<br />

R 1<br />

AcOH<br />

118<br />

R 2 Br<br />

H<br />

R 2<br />

BH 3<br />

P<br />

3<br />

BH 3<br />

P<br />

4<br />

Ph<br />

Ph<br />

R 1<br />

R 1<br />

yield 60-75 %<br />

88-94% e.e.<br />

yields 21-75 %<br />

87-99% e.e.


P-179<br />

RECENT PROGRESSES ON P-CHIROGENIC PHOSPHINE SYNTHESIS<br />

M. L. Auclair, a G. Morata, a M. Gomès, a S. Loutsenko, a J. C. Henry, a P. Richard, a<br />

C. Darcel a and S. Jugé a *<br />

[a] Institut de Chimie Moléculaire de l'Université de Bourgogne,UMR CNRS 5620, 9 av. A. Savary, 21078 Dijon,<br />

France; Fax 33 3 80 39 60 98; e-mail: Sylvain.Juge@u-bourgogne.fr<br />

[d] SYNTHELOR SAS- 102 impasse H. Becquerel, Dynapôle de Ludres-Fléville 54510 Ludres, France<br />

Organophosphorus ligands bearing chirality on the phosphorus atom are not been the most used<br />

ligands in asymmetric catalysis until now, mainly due to the difficulty of their stereoselective<br />

preparation. Nevertheless, as their asymmetric synthesis has made in the recent past, important<br />

progresses due to the use of borane complexes, these ligands receive again a particular interest in<br />

coordination chemistry and catalysis, for the possibility to increase the steric and electronic<br />

dissymmetry of the metal center.<br />

R<br />

Ph<br />

1<br />

o-Tol<br />

Ph<br />

P<br />

Br<br />

R<br />

Ph<br />

1<br />

P<br />

P<br />

NH 2( OH)<br />

Fe<br />

Ph<br />

o-An<br />

P<br />

Ph<br />

Cl<br />

P<br />

BH 3<br />

P<br />

R<br />

Ph<br />

1<br />

NHPh<br />

119<br />

P Ph<br />

Ph<br />

Fe<br />

R<br />

Ph<br />

1<br />

P<br />

R<br />

Ph<br />

1<br />

P<br />

O<br />

P<br />

O<br />

R2<br />

R3 R<br />

Ph P P<br />

1 Ph<br />

R1 We report herein the synthesis of new P-chirogenic ligands: bulky monophosphinites,<br />

ferrocenylphosphines, o-hydroxy-, β-aminophosphines, phosphine-phosphinites, pincer ligands,<br />

indenylphosphines, and their uses in coordination chemistry or asymmetric catalysis.<br />

References<br />

1) C. Bauduin, D. Moulin, E.B. Kaloun, C. Darcel, S. Jugé J. Org. Chem. 2003, 11, 4293–4301.<br />

2) J.M. Camus, J. Andrieu, P. Richard, R. Poli, C. Darcel, S. Jugé Tetrahedron : Asymmetry 2004, 15, 2061-2065.<br />

O<br />

O


P-186<br />

SYNTHESIS OF HEXAISOPROPYLTRIAMIDEPHOSPHITE: MYTH OR REALITY?<br />

Anatoliy P. Marchenko, Georgyi N. Koidan, Yurii M. Pustovit , Mark I. Povolotskii, Aleksandr N. Chernega,<br />

Aleksandr M.Pinchuk,<br />

Institute of Organic Chemistry National Academy of Sciences of Ukraine,<br />

Murmanska Str.5, Kyiv, 02094 Ukraine<br />

It has already been informed that triamide (i-Pr2N)3P 1 was prepared by the reaction of<br />

phosphorus trichloride with di(isopropyl)amine 2. [1,2] At the same time our investigations and<br />

results of work [3] testify that this reaction stops affording (i-Pr2N)2PCl 3 due to steric hindrance.<br />

Moreover, it was found that di(isopropyl)amine 2 easily reacts with less sterically hindered and<br />

more electrophilic phosphenium cation (i-Pr2N)2P + CF3SO3 - 4. Nevertheless, the reaction doesn’t<br />

lead to the triamide 3, but it gives the diphosphine i-PrN=C[CH2P(iPr2N)2]2 5. The diphosphine 5<br />

formation most probably takes place via the reaction of the phosphenium cation 4 with ketimine<br />

i-PrN=CMe2 forming in the course of the reaction that was confirmed experimentally. [4]<br />

iPrN=CMe 2 + (i-Pr2N) 2P + CF3SO - (i-Pr 3 2N) 2P-CH2CCH3 =NPr-i<br />

-BH +<br />

(i-Pr 2 N) 2 P + CF 3 SO 3 -<br />

-BH +<br />

4<br />

B:<br />

iPrN=C(CH 2 P(NPr-i 2 ) 2 ) 2<br />

Unlike the phosphenium cation 4, chlorophosphite 3 reacts with an excess of ketimine giving<br />

dihydroazaphosphinine.<br />

N P<br />

NHPr-i<br />

i-Pr<br />

iPrN=CMe 2 + (i-Pr 2 N) 2 PCl<br />

3<br />

At the same time the reaction of the phosphenium cation 4 with less sterically hindered<br />

methylisopropylamine HNMe(Pr-i) leads to triamide (i-Pr2N)2 PN(Me)Pr-i.<br />

The synthesis of triamide 1 using the above-mentioned methods most probably could not be<br />

accomplished. An approach to triamide 1 has to be found yet.<br />

References<br />

1. Michaelis A., Lieb. Ann., 326, 129 1903.<br />

2. Nifantyev E.E., Suvorkin S.V., Rasadkina E.N. et al Zhur.Obshch.Khimii 2002, 72, 8, P. 1263-1266<br />

3. Foss V.L., Lukashev N.V., Lutsenko I.F. Zhur.Obshch.Khimii 1979, 50, 6, P.1236-1245.<br />

4. Hund H, Hund R-D., Has S., et al Phosphorus, Sulfur and Silicon, 1996, Vol.111, P.193<br />

120<br />

5<br />

6<br />

B:


P-187<br />

A CONVENIENT METHOD FOR THE SYNTHESIS OF<br />

CYCLOPHOSPHAMIDE ANALOGUES<br />

Zhang Liuji 1 , Qu Lingbo 1,2 , Zhang Baojun, Zhao Yufen 1<br />

1 Department of Chemistry, Zhengzhou University, Zhengzhou, 450052, P. R. China<br />

2 Anyang Normal College, Henan Province, Anyang, 455002, P. R. China<br />

E-mail: qulingbo@zzu.edu.cn<br />

Cyclophosphamide is an anticancer prodrug, which has better effection on most malignant tumor<br />

cells, but it has also toxicity and side-effect on normal human cells. In the last four decades, in<br />

efforts to obtain potential anticancer prodrugs and decrease the side-effect of cyclophosphamide,<br />

modifications of cyclophosphamide led to the design and synthesis of many cyclic and acyclic<br />

phosphoramidate agents. However, these extensive structure-activity relationship studies failed to<br />

produce better drugs than cyclophosphamide.<br />

In this paper, we report a convenient method for the synthesis of some new cyclophosphamide<br />

analogues (Scheme 1). These structures might be used as potential cyclophosphamide analogues<br />

designed to increase tumor selectivity, overcome tumor resistance, etc. The structures of the<br />

products were defined by ESI-MS, NMR and IR. Biological evaluation is in progress.<br />

H 3CO<br />

OH<br />

O<br />

CH 3<br />

H<br />

NaBH 3CO<br />

4<br />

CH3OH H 3CO<br />

THF<br />

NEt3 Cl<br />

OH<br />

CH 3<br />

O<br />

P<br />

Cl<br />

O<br />

OH<br />

Cl2P(O)N(CH2CH2Cl) 2 H3CO H<br />

N R<br />

P<br />

O<br />

CH 3<br />

O<br />

N<br />

H<br />

R=H, CH 3, OCH 3, F, Cl, Br<br />

Scheme 1<br />

121<br />

Et 3N, THF<br />

References<br />

1. Zhuorong Li, Jiye Han, Yongying Jiang et al. Bioorganic & Medicinal Chemistry 2003, 11:4171-4178.<br />

2. Y B Kiran, M Kasthuraiah, C Nagaraju et al. Indian Journal of Chemistry, 2005, 44B (11): 2171-2177.<br />

Project was supported by NNSFC (No. 0472076) and HNSTF (No. 0512001400)<br />

R<br />

O<br />

CH 3<br />

O<br />

P N(CH2CH2Cl) 2<br />

O


P-188<br />

CONVENIENT SYNTHESIS OF α-HYDROXYPHOSPHINATE<br />

Tao Ji, Guo Tang , Hua Fang, Yufen Zhao*<br />

Department of Chemistry and The Key Laboratory for Chemical Biology of Fujian Province, College of<br />

Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China.<br />

Abstract: α-Hydroxyphosphinate are compounds with wide ranging biological activities and useful<br />

synthetic intermediates for a variety of natural and complex molecules. The Pudovik reaction is the<br />

most versatile pathway to the above compounds. The reaction is very sluggish without Me3SiCl. It<br />

was found that this reaction is markedly accelerated in presence of Me3SiCl when basic catalysts<br />

are added. O-alkyl phenylphosphonite was formed by the reaction of O-alkyl phenylphosphonite 1<br />

with aromatic aldehydes in presence of Me3SiCl and Et3N.<br />

O<br />

Cl<br />

Et O<br />

3N<br />

P + R OH PH + CHO P<br />

Cl<br />

Me3SiCl OR<br />

OR<br />

R=<br />

1 2 3<br />

CH3 , CH2CH3 , CH(CH3) 2 , C(CH3) 3 ,<br />

R Reaction<br />

conditions<br />

CH3CH2-<br />

122<br />

Reaction Time(h) Yield(%)<br />

Me3SiCl 6 70<br />

Me3SiCl and Et3N 1 81<br />

Me3SiCl 4 75<br />

Me3SiCl and Et3N 0.5 88<br />

References<br />

[1] Mastalerz, P. In Handbook of Orgnophorus Chemistry; Engel, R. (Ed.) New York, 1992; pp.299-305<br />

[2] Texier-boullet, F; Foucauld. A, Synthesis 1982, 165;<br />

[3] Jue-xiao Cai; Zhenghong Zhou, Heteroatom Chemistry, 2003, 14, 312-315<br />

OH


P-190<br />

SYNTHESIS OF N-(DIISOPROPYLOXYPHOSPHORYL)DIPEPTIDES<br />

IN A ONE-POT METHOD<br />

Kan Lin, Xiantong Huang, Guo Tang, Yufen Zhao<br />

The Key Laboratory for Chemical Biology of Fujian Province,Department of Chemistry and College of Chemistry and<br />

Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China.<br />

Derivatives of N-phosphopeptides are of pharmaceutical and biologically active interst. Several<br />

methods for their synthesis are known. Because an efficient method to prepare highly pure and large<br />

quantities of N-phosphoamino acids has been developed in our laboratory, we can use<br />

N-(dialkoxyphosphoryl)amino acids as stock material. In this paper, coupling of<br />

N-(diisopropyloxyphosphoryl)amino acid and amino acid methyl esters, by the adduct of<br />

triphenylphosphine, hexachloroethane and triethylamine in one-pot, produced N-DIPP-dipeptide<br />

methyl esters which then were hydrolyzed to get corresponding N-DIPP-dipeptide. Target products<br />

were determined by NMR, ESI, and optical rotatory power. We hope that this convenient and<br />

efficient approach could be generally used for synthesis of polypeptides.<br />

O<br />

O<br />

P<br />

O<br />

H<br />

N H C<br />

R1 COOH<br />

2<br />

+ Ph3P<br />

O O<br />

P<br />

H<br />

N<br />

O<br />

H C<br />

R1 O<br />

C O<br />

H<br />

NH C<br />

R2 + C2Cl6 COOMe<br />

5<br />

HCl H2N i Et3N+H2O<br />

ii H +<br />

H<br />

C<br />

R 2<br />

123<br />

COOMe<br />

Et3N , CH2Cl2<br />

O<br />

O<br />

P<br />

O<br />

H<br />

N H C<br />

R 1<br />

O<br />

C<br />

O<br />

O<br />

P<br />

H<br />

N<br />

O<br />

H C<br />

R 1<br />

O<br />

C<br />

6<br />

O<br />

5<br />

O<br />

H<br />

NH C<br />

R 2<br />

COOH<br />

H<br />

NH C<br />

R2 O<br />

COOMe + Ph3P Table 1. The yields of the N-DIPP-peptides<br />

Compound DIPP-Ala-Ala DIPP-Ala-Phe DIPP-Phe-Phe DIPP-Phe-Ala DIPP-Phe-Ile<br />

Yields(%) 71 79 78 87 85<br />

References<br />

[1] Shu-Zhi Dong et al. Synthetic communications. 2001, 13, 2067.<br />

[2] Gai-Jiao Ji et al. Synthesis. 1988, 6, 444.


P-191<br />

ORGANICPHOSPHORUS COMPOUNDS AS SMALL MOLECULAR CATALYSTS IN<br />

THE DIRECT ASYMMETRIC ALDOL REACTION<br />

Qin Tao, Guo Tang*, Yu-Fen Zhao<br />

Department of Chemistry and The Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and<br />

Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China.<br />

Chiral organophosphorus compounds have been synthesized and applied in the direct asymmetric<br />

aldol reaction as chiral catalysts. High enantioselectivities were achieved for a series of ketones and<br />

substituded benzaldehydes.<br />

In this article we synthesize chiral organicphosphorus [1], [2] 1 and 2( Fig. 1), then apply them as<br />

chiral catalysts in the direct asymmetric aldol reaction and obtain good enantioselectivities (Scheme<br />

1). Other nucleophilic reactions such as Michael addition are under researching.<br />

R<br />

R= NO2 Cl<br />

CN<br />

O<br />

+<br />

O<br />

N<br />

H<br />

O<br />

P O<br />

O N<br />

H<br />

1 2<br />

O<br />

( )<br />

Fig. 1<br />

124<br />

1or2<br />

O<br />

P<br />

O<br />

O<br />

acetone/DMSO/CCl 3<br />

Scheme 1<br />

O OH<br />

Reference<br />

[1] A. R. Katritzky, X. L. Cui, B. Yang and P. J. Steel, J. Org. Chem., 1999, 64, 1979–1985。<br />

[2] Peter Din′er and Mohamed Amedjkouh, Org. Biomol. Chem,2006,4,2091-2096<br />

R


Symposium 2<br />

Phosphorus Coordination Compounds<br />

and their Use as Catalysts


KL-5<br />

DESIGN AND SYNTHSIS OF SPIRO PHOSPHORUS LIGANDS FOR<br />

ASYMMETRIC CATALYSIS<br />

Qi-Lin Zhou<br />

State Key Laboratory and Institute of Elemento-organic Chemistry, Nankai University<br />

Tianjin 300071, China<br />

Chiral phosphorus ligands play a crucial role in transition-metal-catalyzed asymmetric reactions,<br />

and many effective chiral phosphorus ligands have been synthesized over the past few decades.<br />

Since there are no universal ligands and catalysts for asymmetric transformations and the<br />

enantioselectivity is substrate-dependent in most asymmetric reactions, the search for efficient<br />

chiral ligands in terms of high enantioselectivity, and high turnover number (TON) remains one of<br />

the most important goals in asymmetric catalysis. Recently, we developed a new class of<br />

phosphorus ligands with chiral spirobiindane and spirobifluorene backbones and demonstrated they<br />

are highly efficient for number of asymmetric transformations. In this presentation we will discuss<br />

our new investigations on the development of these novel chiral spiro phosphorus ligands and their<br />

applications in transition-metal-catalyzed asymmetric hydrogenation and carbon-carbon bond<br />

forming reactions.<br />

O<br />

O P<br />

R<br />

N<br />

R<br />

PAr 2<br />

PAr 2<br />

O<br />

P OR<br />

O<br />

125<br />

O<br />

P<br />

O<br />

R P R<br />

Acknowledgment<br />

We thank the National Natural Science Foundation of China, and the Ministry of Education of<br />

China for financial support.<br />

References<br />

(1) Shi, W.-J.; Zhang, Q.; Xie, J.-H.; Zhu, S.-F.; Zhou, Q.-L. J. Am. Chem. Soc. 2006, 128, 2780.<br />

(2) Duan, H.-F.; Xie, J.-H.; Shi, W.-J.; Zhang, Q.; Zhou, Q.-L. Org. Lett. 2006, 8, 1479.<br />

(3) Duan, H.-F.; Jia, Y.-X.; Wang, L.-X.; Zhou, Q.-L. Org. Lett. 2006, 8, 2567.<br />

(4) Cheng, X.; Xie, J.-H.; Li, S.; Zhou, Q.-L. Adv. Synth. Catal. 2006, 348, 1271.<br />

(5) Hou, G.-H.; Xie, J.-H.; Wang, L.-X.; Zhou, Q.-L. J. Am. Chem. Soc. 2006, 128, 11774.<br />

(6) Zhu, S.-F.; Xie, J.-B.; Zhang, Y.-Z.; Li, S.; Zhou, Q.-L. J. Am. Chem. Soc. 2006, 128, 12886.<br />

PAr 2<br />

PAr 2


KL-6<br />

SYNTHESIS AND APPLICATION OF NEW P-CHIRAL PHOSPHINE LIGANDS<br />

Tsuneo Imamoto<br />

Department of Chemistry, Faculty of Science, Chiba University, Yayoi-cho, Inage-ku Chiba 263-8522, Japan<br />

126


KL-15<br />

MY EXCURSION TO THE CHEMISTRY OF STABLE DIRADICALS:<br />

DIPHOSPHETANEDIYLES<br />

Edgar Niecke<br />

Anorganisch-Chemisches Institut der Universität Bonn, Germany<br />

Diradicals (diradicaloids) containing elements of the p-block [1] are structures in their own right,<br />

since they are stable entities in contrast to the plethora of highly unstable diradicals discussed in<br />

organic chemistry[2]. They promise extraordinary properties due to their peculiar electronic<br />

structure[3].<br />

Within this report an overview on the structure and reactivity of 1,3-diphosphetane-2,4-diyles 1<br />

will be given. Investigation will be presented in detail under following subjects:<br />

i) the photochemical and thermal interconversions involving valence isomers 1-4<br />

ii) the chemical behaviour of 1 as a crypto-carbene 3<br />

iii) the coupling of diradical 1 via p/d block metals and organic spacer fragments: achieving an<br />

electronic communication between the unpaired electrons through the spacer 5<br />

iv) the reactivity towards acids or bases, to yield the ions 6,8<br />

v) the electron transfer reactions leading to persistent radical cations 7, and temporarily<br />

traceable anionic radicals 9, as well as subsequent reactions.<br />

Furthermore, the synthesis and reactivity of a radical anion containing the<br />

1,4-diphosphabutandiene 4 skeleton will be discussed in detail.<br />

RP PR RP PR RP PR RP PR RP PR<br />

1 3<br />

RP PR RP<br />

RP PR RP PR<br />

RP<br />

2<br />

Spacer<br />

4 5<br />

127<br />

6 7<br />

RP PR<br />

8 9<br />

Reference<br />

[1] a) E. Niecke, A. Fuchs, F. Baumeister, M. Nieger, W.W. Schoeller, Angew. Chem. Int. Ed. 1995, 34, 555; (b)<br />

G.Bertrand, (c) H. Sugiyama, S. Ito, M. Yoshifuji, Angew. Chem. Int. Ed.. 2003, 42, 3932; (d)<br />

[2] W.T. Borden, H. Iwamura, J.A. Berson (1994), Acc. Chem. Res., 27, 109.<br />

[3] (a) M.Sebastian, M. Nieger, W.W. Schoeller, E.Niecke, Chemistry; (b) W.W. Schoeller, E.Niecke, J Phys. Chem.<br />

submitted.


KL-17<br />

INNOVATIVE CHIRAL PHOSPHORINES FOR<br />

HYDROGENATION AND HYDROFORMYLATION<br />

Xumu Zhang<br />

Department of Chemistry, Penn State University, University Park, PA 16802, xumu@chem.psu.edu, +1-814-880-4373<br />

(phone). Since 1/1/07, Professor II, Center for Molecular Catalysis, Department of Chemistry and Chemical<br />

biology, Rutgers University, NJ 08854, xumu@rutgers.edu<br />

The research in my group addresses fundamental and practical problems in this field by<br />

developing a diverse set of chiral ligands which combine with transition metals to form effective<br />

catalysts. We are also inventing new metal-catalyzed reactions through screening of reaction<br />

conditions. Our technologies have been used by pharma and fine chemical companies<br />

internationally for the synthesis of chiral pharmaceutical products in a highly efficient,<br />

cost-effective and environmentally compliant way. Selected chiral ligands developed by us are<br />

TunePhos, Binaphane, TangPhos, Binapine, and DuanPhos. Transitional metal complexes (Ru,<br />

Rh, Pd and Ir) with our chiral ligands are highly enantioselective (up to 99%ee) and active (up<br />

to 100,000 turnovers) catalysts for hydrogenation of many types of ketones, imines and olefins.<br />

Commercial scale of several ligands have been produced for practical synthesis if chiral<br />

molecules. Recently, we have developed YanPhos for asymmetric hydroformylation. Up to<br />

99% ee have been achieved. These methods provide useful ways to make chiral amines,<br />

alcohols, alpha and beta-amino acids, acids, aminoalchohols and other chiral building blocks.<br />

128


KL-30<br />

PHOSPHORUS LIGANDS DESIGN FOR COORDINATION CHEMISTRY<br />

AND CATALYSIS<br />

P.L. Floch<br />

Laboratoire « Hétéroéléments et Coordination UMR CNRS 7653, Département de Chimie,Ecole Polytechnique, 91128<br />

Palaiseau Cedex, France Email: lefloch@poly.polytechnique.fr<br />

The structural and electronic design of ligands is crucial in the elaboration of highly performant<br />

and selective catalysts. Over the last few years, most of our activity focused on the synthesis of<br />

phosphorus ligands that exhibit a strong π-accepting capacity 1 as well as a on the synthesis of<br />

mixed architectures featuring different heteroatoms (P-olefin ligands, 2 P~N, 3 P~S 4 heteroditopic<br />

ligands). Many efficient catalytic systems were developed for different transformations such as<br />

hydroformylation, 5 C-C and C-B and C-N coupling reactions. 6 A part of the lecture will focus on<br />

the design of efficient palladium based catalysts for the allylic allylation of primary amines using<br />

allylic alcohol as substrate.<br />

A detailedinvestigation of the catalytic cycle through DFT calculations allowed the design of a<br />

very simple and efficient catalyst and shed some light on related catalytic transformations such as<br />

the hydroamination of olefins and dienes. 7<br />

The second part of the lecture will focus on the use of mixed P~N and P~S ligands in the<br />

oligomerization of ethylene into butene 8 and the activation of small molecules and C-H bonds<br />

respectively.<br />

References<br />

[1] Le Floch, P.; Coord. Chem. Rev. 2006, 627.<br />

[2] Thoumazet, C.; Ricard, L.; Grutzmacher, H.; Le Floch,P. Chem. Commun. 2005, 1592.<br />

[3] Boubekeur, L. ; Ulmer, S. ; Ricard, L. ; Mézailles, N. ; Le Floch, P. Organometallics, 2005, 25, 315.<br />

[4] Doux, M. ; Ricard, L. ; Le Floch, P. ; Jean, Y. Organometallics, 2005, 24, 1608.<br />

[5] Mora, G. ; van Zutphen, S. ; Thoumazet, C.; Le Goff, X. F.; Ricard, L.; Grutzmacher, H. Le Floch,<br />

P.,Organometallics, 2006, 25, 5528.<br />

[6] M. Doux, N . Mézailles, M. Melaimi, L. Ricard, P. le Floch, Chem. Commun. 2002, 1566.<br />

[7] Piechaczyk, O.; Thoumazet, C.; Jean, Y.;Le Floch, P. J. Am. Chem. Soc. 2006, 128, 14306.<br />

[8] Buchard, A. ; Auffrant, A. ; Klemps, C. ; Vu-Do, L. ; Boubekeur, L. ; Le Goff, X. F. le Floch, P.,<br />

129


IL-8<br />

AMBIPHILIC PHOSPHINE/BORANE DERIVATIVES: SYNTHESIS AND<br />

COORDINATION PROPERTIES<br />

S. Bontemps a , G. Bouhadir a , K. Miqueu b , L. Maron c , D. Bourissou a<br />

a<br />

Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069), Université Paul Sabatier, 118 route de Narbonne,<br />

F-31062 Toulouse cedex 4, France, Fax: +33 (0)5 6155 8204, Email: dbouriss@chimie.ups-tlse.fr.<br />

b<br />

Equipe de Chimie-Physique (UMR 5254-IPREM), Avenue de l'Université, BP 1155<br />

F-64013 Pau cedex, France.<br />

c<br />

Laboratoire de Physique et Chimie des Nano-Objets (UMR5215), INSA, 135 avenue de Rangueil,<br />

F-31077 Toulouse Cedex, France.<br />

Lewis acids are frequently involved in organometallic chemistry as co-catalysts. In particular,<br />

their ability to activate complexes via ligand abstraction is well-recognized. 1 The possibility for<br />

Lewis acids to behave as ligands for transition metals has also been demonstrated, 2,3 although this<br />

coordination mode remains very rare. In this perspective, we are investigating ligands combining<br />

Lewis base and Lewis acid coordination sites, so-called ambiphilic ligands.<br />

Lewis<br />

base<br />

spacer<br />

Lewis<br />

acid<br />

ML n<br />

130<br />

[ML n ]<br />

The synthesis, structure and coordination properties of mono- and di-phosphine-borane ligands 1<br />

and 2 will be presented. 4 The different coordination modes adopted by these ambiphilic ligands will<br />

be discussed, from both experimental and theoretical viewpoints.<br />

R 2 P BR' 2<br />

1<br />

B<br />

R'<br />

R 2 P PR 2<br />

2<br />

R 2 P BR' 2<br />

L n M X<br />

R 2 P<br />

R 2 P<br />

R 2 P BR' 2<br />

Acknowledgements: Thanks are due to the CNRS, UPS, and the French Ministry of Research and<br />

New Technologies (ACI JC4091, ANR BILI) for financial support of this work and to IDRIS<br />

(CNRS, Orsay, France) for calculation facilities.<br />

References<br />

1aW. E. Piers et al Organometallics 1995, 14, 4617. 1bG. Erker et al J. Am. Chem. Soc. 2004, 126, 11046. 1cD. Zargarian<br />

et al J. Am. Chem. Soc. 2004, 126, 8796.<br />

2For a triphenylalane complex, see: J. M. Burlitch, R. E. Hugues et al Inorg. Chem. 1979, 18, 1097.<br />

3For the first structural characterization of a borane complexes, see: A. F. Hill et al Angew. Chem. Int. Ed. 1999, 38,<br />

2759.<br />

4aS. Bontemps, H. Gornitzka, G. Bouhadir, K. Miqueu, D. Bourissou Angew. Chem. Int. Ed. 2006, 45, 1611. 4bS.<br />

Bontemps, G. Bouhadir, K. Miqueu, D. Bourissou J. Am. Chem. Soc. 2006, 128, 12056.<br />

BR'<br />

ML n<br />

M Ln


IL-11<br />

SYNTHESIS AND ASYMMETRIC CATALYSIS OF NEW CHIRAL TETRADENTATE<br />

AMINOPHOSPHINE LIGANDS<br />

Yan-Yun Li, Zhen-Rong Dong, Wei-Yi Shen, Gui Chen, Xue-Qing Zhang, Hui Zhang , Jingxing Gao<br />

State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry<br />

Xiamen University, Fujian, P.R.China<br />

For the past decades, chiral phosphine compounds are becoming the most important and popular<br />

ligands in asymmetric catalysis. Recently, chiral mixed P, N-ligands have attracted considerable<br />

attention because of the distinctly different characteristics of a “soft” phosphorus with π-acceptor<br />

properties and a “hard” nitrogen atom acting as an σ-donor ability. The π-acceptor character of the<br />

phosphorus atom can increase basicity and stabilize a metal center in a low oxidation state, while<br />

the nitrogen σ-donor ability makes a weaker coordination to metal center and easily dissociates in<br />

solution to afford a vacant site for the substrate coordination. This favorable combination displays<br />

important rule during a catalytic cycle.<br />

Several chiral tetradentate PNNP-type ligands with sp 2 -N and sp 3 -N were conveniently<br />

synthesized by the condensation of o-(diphenylphosphino)benzaldehyde and appropriate chiral<br />

diamine with 85-93% yield.<br />

H H<br />

N N<br />

P Ph 2<br />

Ph<br />

3<br />

P<br />

Ph 2<br />

Ph<br />

H H<br />

N N<br />

P Ph 2<br />

9<br />

P<br />

Ph 2<br />

[ H ]<br />

[ H ]<br />

N<br />

P<br />

Ph 2<br />

Ph<br />

2<br />

N<br />

P Ph 2<br />

H 2N NH 2<br />

1<br />

Ph<br />

H 2N NH2<br />

7<br />

Ph Ph<br />

N<br />

P<br />

Ph 2<br />

8<br />

N<br />

P Ph 2<br />

CHO<br />

PPh2 131<br />

H CH 3<br />

H 2N NH 2<br />

4<br />

H 2N NH 2<br />

10<br />

N<br />

H<br />

N N<br />

CH 3 H CH 3<br />

N<br />

[ H ]<br />

P<br />

Ph 2<br />

P<br />

Ph 2<br />

P<br />

Ph 2<br />

P<br />

Ph 2<br />

5 6<br />

[ H ]<br />

H<br />

N N<br />

P<br />

Ph2 P<br />

Ph2<br />

P<br />

Ph2 11 12<br />

Scheme 1 Synthesis of chiral PNNP ligands<br />

Based on these mixed P, N-ligands, a family of chiral PNNP ligands with Ru (II), Rh (I) and Ir (I)<br />

complexes have been prepared and fully characterized. These complexes have been proved to be<br />

excellent catalyst precursors for the asymmetric transfer hydrogenation of a series of ketones using<br />

2-propanol as hydrogen source, leading to the corresponding optical alcohols with up to 99% ee and<br />

even the molar ratio of ketone to catalyst up to 10000: 1.<br />

R 1<br />

O<br />

R 2<br />

*<br />

R 1<br />

R 2<br />

OH<br />

chiral PNNP-M catalyst<br />

+ +<br />

16 examples up to 99% ee<br />

Scheme 2 Asymmetric transfer hydrogenation of aromatic ketones<br />

OH<br />

H<br />

N<br />

N<br />

H<br />

P<br />

Ph2 H<br />

O


Chiral PNNP-Ir(I) complexes have been also used in the enantioselective redox reaction of<br />

ketones and alcohols. In the presence of KOH, the oxidative kinetic resolution of several racemic<br />

second alcohols gave the excellent enantioselectivity of up to 98% ee.<br />

R 1<br />

R 1<br />

*<br />

OH<br />

OH<br />

R 2<br />

R 2<br />

+ R +<br />

1<br />

+<br />

Ir(I)-PNNP PNNP:<br />

R 1<br />

OH<br />

O<br />

R 2<br />

R 2<br />

Scheme 3 Oxidative kinetic resolution of racemic second alcohols<br />

These results indicate that chiral tetradentate PNNP ligands represent a new class of mixed-P, N<br />

organic ligands. They possess a versatile reactivity towards metal atoms and can provide better<br />

control the coordination number and stereochemistry of the resulting metal complexes.<br />

Continuation of studying on the electronic and steric properties will develop more effective<br />

polydentate P, N-ligands and further expand their use in asymmetric catalysis.<br />

References<br />

[1] J.-X. Gao, T. Ikariya and R. Noyori, Organometallics, 15, 1087 (1996).<br />

[2] H. Zhang, C.-B. Yang, Y.-Y. Li, Z.-R. Dong, J.-X. Gao, H. Nakamura, K. Murata and T. Ikariya, Chem. Commun.,<br />

142 (2003).<br />

[3] J.-S. Chen, Y.-Y. Li, Z.-R. Dong, B.-Z. Li and J.-X. Gao, Tetrahedron Lett., 45, 8415 (2004).<br />

[4] Z.-R. Dong, Y.-Y. Li, J.-S. Chen, B.-Z. Li, Y. Xing and J.-X. Gao, Org. Lett., 7, 1043 (2005).<br />

[5] Y.-Y. Li, X.-Q. Zhang, Z.-R. Dong, W.-Y. Shen, G. Chen and J.-X. Gao, Org. Lett., 8, 5565 (2006).<br />

[6] Y. Xing, J.-S. Chen, Z.-R. Dong, Y.-Y. Li and J.-X. Gao, Tetrahedron Lett., 47, 4501 (2006).<br />

The financial support from NSFC (20373056, 20423002) and Fujian PSTC (2005YZ1020) is<br />

gratefully acknowledged.<br />

+<br />

132<br />

O<br />

OH<br />

H<br />

N<br />

**<br />

P<br />

Ph2 N<br />

H<br />

P<br />

Ph 2


IL-13<br />

PHOSPHORUS CHEMISTRY & SUSTAINABLE DEVELOPMENT<br />

Pascal Metivier<br />

Rhodia, R&D for Phosphorous and Performance Derivatives Oak House, reeds Crescent Watford, WD24 4QP, UK<br />

133


IL-14<br />

PHOSPHINE AND PHOSPHINE-MIMIC COMPLEXES IN CATALYSIS<br />

T. S. Andy Hor<br />

Department of Chemistry, National University of Singapore, Singapore, 117543<br />

Email: andyhor@nus.edu.sg<br />

Phosphines are probably the most widely used ligands in supporting homogeneous catalysts.<br />

They offer good σ and π donor and accepting properties and are easily tunable, electronically and<br />

sterically. Unfortunately, they are also plagued by problems such as solution dissociation, aerial<br />

oxidation and thermal degradation. There has been therefore a strong call for alternative ligands,<br />

termed “phosphine mimics”, that share the strengths but not the weaknesses of phosphines. We<br />

have recently embarked on a project to examine the viability of N,S-heterocyclic carbenes (NSHC)<br />

as such mimics. 1 Early results on their chemical stability, structural integrity and catalytic activities<br />

are promising. In this presentation, we shall summarize our latest findings especially on the<br />

syntheses and structural elucidation of these mimicking ligands.(Figures below) We shall also take<br />

a glimpse at the immediate prospect and challenges of this type of novel complexes in catalysis.<br />

Acknowledgement: This work was carried out by the Ph.D. scholar Ms Swee-Kuan YEN and in<br />

collaboration with my colleague Dr H. Vinh HUYNH. It is funded by NUS and A*Star of<br />

Singapore.<br />

References<br />

S. K. Yen, L. L. Koh, F. E. Hahn, H. V. Huynh and T. S. A. Hor, Organometallics, 2006, 25, 5105.<br />

134


IL-40<br />

SYNTHESIS AND CHEMISTRY OF METALLABENZYNE<br />

Tingbin Wen, a, * and Guochen Jia b, *<br />

a<br />

The College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, P. R. China. Email:<br />

chwtb@xmu.edu.cn<br />

b<br />

Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong<br />

Kong, P. R. China. Email: chjiag@ust.hk<br />

Tertiary phosphines, PR3, can alter electronic and steric properties over a very broad range by<br />

varying R group. Thus they can act as supporting ligands in an exceptional wide variety of<br />

organometallic compounds and constitute one of the most widely used ligands in organometallic<br />

chemistry.<br />

Following the reported work on the ruthenium vinylidene complexes RuCl2(=C=CHR)(PPh3)2<br />

with the simplest tertiary phosphine PPh3 as ligand, which can be prepared conveniently from the<br />

reaction of RuCl2(PPh3)3 with HC≡CR and act as an alternative to Grubbs’ catalysts for olefin<br />

metathesis, we were tempted to prepare analogous osmium vinylidene complexes<br />

OsCl2(=C=CHR)(PPh3)2 via similar preparative routes. Unexpectedly, the reaction of OsCl2(PPh3)3<br />

(1) with HC≡CSiMe3 lead to the formation of the first metallabenzyne complex 2, which represents<br />

a new class of organometallic compounds. Metallabenzynes are interesting because they are<br />

structurally related to metallabenzenes and benzynes. We thus initiated a program directed toward<br />

the synthesis and chemistry of metallabenzyne. This presentation will report some of our progress<br />

in this field.<br />

Cl<br />

Cl<br />

Cl<br />

Cl<br />

Cl<br />

Cl<br />

PPh 3<br />

Os<br />

PPh 3<br />

Os<br />

PPh 3<br />

PPh 3 SiMe 3<br />

PPh 3<br />

NaCl HBF 4<br />

PPh 3<br />

Os<br />

PPh 3<br />

1<br />

SiMe 3<br />

CH 3<br />

SiMe 3<br />

2<br />

5<br />

Ar<br />

( Ar = Ph,<br />

p- tolyl )<br />

CH 3<br />

PPh 3<br />

Cl<br />

C<br />

Cl<br />

Os<br />

C<br />

C H<br />

Ar<br />

3<br />

AgOTf<br />

N<br />

Br 2<br />

Br 2<br />

N<br />

Br<br />

Br<br />

PPh 3<br />

PPh 3<br />

Os<br />

PPh 3<br />

N<br />

N<br />

H<br />

C Ar<br />

6<br />

PPh 3<br />

Os<br />

PPh 3<br />

7<br />

Br<br />

Br<br />

135<br />

(Ph 3P)Au R<br />

CH 3<br />

Et 3NHCl<br />

R = Ph, p- tolyl,<br />

SiMe 3, Bu n<br />

SiMe 3<br />

SiMe 3<br />

2OTf-<br />

2+<br />

CH 3<br />

NaBH 4<br />

MeOH<br />

K2CO3 Cl<br />

Cl<br />

PPh 3<br />

Os<br />

Ar<br />

PPh 3<br />

R<br />

H<br />

4<br />

H<br />

SiMe3 Me<br />

H<br />

N<br />

Os<br />

SiMe3 N<br />

PPh 3<br />

8<br />

Ph3P Me<br />

O H<br />

N<br />

Os<br />

N<br />

Ph3P 9<br />

SiMe 3<br />

CH 2Ar<br />

+<br />

OTf-<br />

+ OTf-<br />

CH 3


O-35<br />

SYNTHESIS OF STRAINED-RING PHOSPHORUS HETEROCYCLES FROM<br />

PHOSPHATRIAFULVENES AND PHOSPHAHEPTAFULVENES<br />

Heydt, H. Bergsträber, U. Hofmann, M.A. Werner, S. Regitz, M<br />

Department of Chemistry, Technical University of Kaiserslautern<br />

67663 Kaiserslautern, Germany<br />

The developments in the chemistry of low-coordinate phosphorus compounds are essentially<br />

dominated by compound possessing P/C double bonds. In accord with the Pauling<br />

electronegativities, the carbon atom in such a bond carries partial negative charge and the<br />

phosphorus atom partial positive charge. This polarization is reinforced in the<br />

phosphapentafulvenes by the formation of an aromatic cyclopentadienide increment.<br />

Phosphaalkenes with an inverse electron distribution are also known. They can be realized from<br />

phosphatriafulvenes or phosphaheptafulvenes when the positive charge is stabilized in a<br />

Hückelaromatic cation. The contribution deals with the synthesis and reactivity of these interesting<br />

phosphaalkenes with emphasis of the inverse electron distribution. Evidence for the inverse charge<br />

distribution will be presented by their reaction with nucleophiles, electrophiles and phosphaalkynes,<br />

from their spectroscopic data, as well as from crystallographic analysis and from ab initio<br />

calculations .[1,2] Furthermore, many of these result are previously unreleased in chemical journals.<br />

Reference<br />

[1] M. A. Hofmann, PhD Thesis; Technical University of Kaiserslautern: Germany, 2000<br />

[2] S Werner, PhD Thesis; Technical University of Kaiserslautern: Germany, 2002<br />

136


O-36<br />

HIGHLY FUNCTIONALISED PHOSPHORUS LIGANDS: SYNTHESIS AND DIVERSE<br />

COORDINATION CHEMISTRY<br />

Martin B. Smith<br />

Department of Chemistry, Loughborough University, Loughborough, Leics, LE11 3TU, UK.<br />

E-mail: m.b.smith@lboro.ac.uk<br />

Highly functionalised phosphorus(III) ligands continue to find many diverse applications in areas<br />

such as transition-metal catalysed reactions, organic transformations, supramolecular chemistry,<br />

medicinal chemistry and as selective metal extractants. 1-3 This oral paper will present some of our<br />

recent developments regarding new mixed donor atom terdentate (P2O-, PN2-) and tetradentate<br />

(PN3-, PN2O-, P2N2) phosphines derived from readily available Ph2PCH2OH (1), 2-Ph2PC6H4CHO<br />

(2) or 2-Ph2PC6H4NH2 (3) precursors. Synthetic details to these multidentate phosphines, their<br />

diverse late-transition metal coordination chemistry and unusual reactivity will also be given. 4,5<br />

OH<br />

Ph<br />

P Ph<br />

Ph<br />

CHO<br />

P Ph<br />

(1) (2) (3)<br />

P 2O-, P 2N 2ligands<br />

PN 3-, PN 2Oligands<br />

137<br />

Ph<br />

NH 2<br />

PN 2ligand<br />

P Ph<br />

References<br />

1. J. H. Downing and M. B. Smith, Phosphorus Ligands in, Comprehensive Coordination Chemistry II, Ed. A. B. P.<br />

Lever, Elsevier, Oxford, 2003, vol. 1, 253.<br />

2. S. E. Dann, S. E. Durran, M. R. J. Elsegood, M. B. Smith, P. M. Staniland, S. Talib and S. H. Dale, J. Organomet.<br />

Chem., 2006, 691, 4829.<br />

3. M. B. Smith, S. H. Dale, S. J. Coles, T. Gelbrich, M. B. Hursthouse and M. E. Light, CrystEngComm., 2006, 8, 140.<br />

4. M. R. J. Elsegood, M. B. Smith and P. M. Staniland, Inorg. Chem., 2006, 45, 6761.<br />

5. S. E. Durran, M. R. J. Elsegood, S. R. Hammond and M. B. Smith, submitted for publication.


O-37<br />

P* CHIRAL AMINOPHOSPHINE COMPLEXES OF COPPER (I): SYNTHESIS AND<br />

X-RAY STRUCTURAL CHARACTERIZATION<br />

T. Arun Luiz a , Babu Varghese b and M. N. Sudheendra Rao a *.<br />

a Department of Chemistry, Indian Institute of Technology Madras, Chennai -600036 (India).<br />

b Sophisticated Analytical Instruments Facility, Indian Institute of Technology Madras, Chennai - 600036 (India).<br />

Chemistry of phosphine complexes with copper (I) is an actively investigated area. Different<br />

structural types with varying coordination number at copper have been realized. Copper (I)<br />

phosphine complexes find applications in variety of fields which include medicine, catalysis,<br />

material science etc [1-3]. The use of ancillary ligands such as bipyridyl etc is known to influence<br />

stereochemistry and properties of the resultant complex significantly. Aminophosphines which are a<br />

novel class of phosphorus(III) ligands carrying one or more amino substituents on phosphorus have<br />

not been adequately employed as ligands in metal chemistry. P* chiral aminophosphines, are even<br />

much less investigated.<br />

In this investigation, P* chiral aminophosphine, (Diisopropylamino)<br />

(Morpholino)(Phenyl)Phosphine recently synthesized by us has been made use of in the reactions<br />

with copper(I) halide as precursors . Bipyridyl has also been used as ancillary ligand in some of<br />

the reactions. Both monomeric and dimeric copper (I) complexes with different coordination<br />

number at copper have been isolated and characterized by using spectral and X-ray structural<br />

methods. X-ray structures reveal strong Copper-Phosphorus bonds ( ~ 2.18 Å) and different<br />

roles played by the halide ligand. The details of this study will be presented in this poster.<br />

References<br />

1. Marzano, C. ; Pellei, M. ; Alidori, S. ; Brossa, A. ; Lobbia, G. G.; Tisato, F. ; C. Santini, J .Inorg. Biochem., 2006,<br />

100, 299.<br />

2. Grodzicki, A.; Lakomska, I. ; Piszczek , P.; Szymanska, I.; Szlyk., E. Coord. Chem. Rev., 2005, 249, 2232.<br />

3. Cormick, T. M.; Jia, W. L ; Wang, S Inorg. Chem., 2006, 45, 147.<br />

138


O-38<br />

PHOSPHORUS TRIVALENT REAGENTS: EFFICIENT TOOLS FOR<br />

MULTICOMPONENT AND ORGANOCATALYTIC REACTIONS<br />

David Virieux*, Anne Françoise Guillouzic, Henri-Jean Cristau, Jean-Luc Pirat<br />

Laboratoire d’Architectures Moléculaires et Matériaux Nanostructurés<br />

Institut Charles Gerhardt, UMR 5253 – ENSCM<br />

8 rue de l’Ecole Normale - 34296 Montpellier cedex 5 – France<br />

Short synthetic methods for the preparation of highly functionalized compounds are still a<br />

challenge for organic chemists. Thus, with respect to their productivity, convergence and atom<br />

economy, multicomponent and organocatalytic reactions occupy an outstanding position, deserving<br />

our interest in the field of organophosphorus chemistry.According to the nature of the nucleophilic<br />

trivalent phosphorus reagents, we can drive reactions towards organocatalytic systems 1,2 or tandem<br />

multicomponent processes leading to a wide variety of extremely diversified structures.<br />

R1 = Ph<br />

R2 , R3 R<br />

= NEt2 R = p-CF3-C6H4 Yield 30-33%<br />

1 = Ph<br />

R2 , R3 = NEt2 R = p-CF3-C6H4 Yield 30-33%<br />

R1 = R2 = Ph<br />

R3 R<br />

= NEt2 Yield 56%<br />

1 = R2 = Ph<br />

R3 = NEt2 Yield 56%<br />

R<br />

EWG<br />

O<br />

PPhNEt 2<br />

R= Ar ou alkyl<br />

R<br />

R<br />

OH<br />

EWG<br />

O<br />

1 = Ph<br />

R2 = Ph, OEt<br />

R3 R= Ar ou alkyl<br />

R<br />

= NEt2 , OEt<br />

R<br />

OH<br />

* EWG<br />

*<br />

O<br />

Yield 11-81%<br />

1 = Ph<br />

R2 = Ph, OEt<br />

R3 = NEt2 , OEt<br />

*<br />

*<br />

Yield 11-81%<br />

OH<br />

PPh 2<br />

Ar<br />

OH<br />

CO 2 Et<br />

O<br />

PPh 2<br />

CO2Me R<br />

Cl<br />

PPh3 _<br />

⊕<br />

OH<br />

Cl<br />

CN<br />

R<br />

Cl<br />

PPh3 _<br />

PR<br />

⊕<br />

1R2R3 = PPh3 R = p-CF3-C6H4 Yield 48%<br />

PR1R2R3 CO2Me R<br />

Cl<br />

PPh3 = PPh3 R = p-CF3-C6H4 , p-MeC6H4 p-NO2-C6H4 , Ph<br />

Yield 54-81%<br />

_<br />

⊕<br />

OH<br />

Cl<br />

CN<br />

R<br />

Cl<br />

PPh3 _<br />

PR<br />

⊕<br />

1R2R3 = PPh3 R = p-CF3-C6H4 Yield 48%<br />

PR1R2R3 = PPh3 R = p-CF3-C6H4 , p-MeC6H4 p-NO2-C6H4 , Ph<br />

Yield 54-81%<br />

P R2 R 1<br />

晻<br />

P R2 R 1<br />

晻<br />

P R2 R 1<br />

晻<br />

R 3<br />

R 3<br />

R 3<br />

139<br />

R 1<br />

R 1<br />

N<br />

R 1<br />

R 1<br />

O<br />

(EWG = CO 2 Me, CO 2 Et, COMe, CN)<br />

EWG<br />

PR3 = P(n-Bu) 3<br />

R1 EWG<br />

PR3 = P(n-Bu) 3<br />

R = H, Et<br />

Yield 4-57%<br />

1 = H, Et<br />

Yield 4-57%<br />

X H<br />

X<br />

X<br />

N<br />

EWG<br />

R 1 R HN<br />

1 HN<br />

O<br />

S<br />

O R1<br />

O R1<br />

EWG<br />

PR 3 = PPh 3<br />

X = C, CH, N<br />

H<br />

Yield 16-94%<br />

OH<br />

EWG<br />

PR3 = P(n-Bu) 3<br />

R = H, Me<br />

R1 PR3 = P(n-Bu) 3<br />

R = H, Me<br />

R = H, OMe<br />

Yield 34-59%<br />

1 = H, OMe<br />

Yield 34-59%<br />

PR 3 = PPh 3<br />

R = Ph<br />

Yield 7-30%<br />

PR3 = P(n-Bu) 3<br />

R1 PR3 = P(n-Bu) 3<br />

R = H, Me<br />

Yield 33-56%<br />

1 = H, Me<br />

Yield 33-56%<br />

The influence of subtituents on the phosphorus atom in combination with the appropriate starting<br />

materials was completely rationalized allowing to predict the course of the reactions.<br />

Reference<br />

[1]. D. Virieux*, A.-F. Guillouzic, H.-J. Cristau, Tetrahedron, 2006, 62, 3710-3720.<br />

[2]. D. Virieux*, A.-F. Guillouzic, A. Fruchier, Heteroatom Chem., 2007, in press.


O-39<br />

BISDITHIOPHOSPHONIC ACIDS IN METAL COMPLEX FORMATION REACTIONS<br />

Il’yas S. Nizamov 1, 2 , Yevgeniy M. Martiyanov 1 , Il’nar D. Nizamov 3 , Alfiya N. Gataulina 1 , Rafael A. Cherkasov 1<br />

1<br />

Kazan State University, Kremlievskaya Str., 18, Kazan, 420008, Russia,e-mail: Ilyas.Nizamov@ksu.ru<br />

Ilyas.Nizamov@ksu.ru<br />

2<br />

A.E. Arbuzov Institute of Organic and Physical Chemistry,Arbuzov Str., 8, Kazan, 420088, Russia,<br />

3 Tatar State Humanitarian Pedagogical University, Tatastan Str. 2, Kazan, 420021, Russia<br />

There is a considerable interest in metal derivatives of phosphorus thioacids due to their use in<br />

metal complex catalysis. We have previously prepared zinc and nickel derivatives of<br />

bisdithiophosphonic acids obtained on the basis of 2,4-dimethyl-1,3,2,4-dithiadiphosphetane-2,4-disulfide<br />

[1]. In continuation of this work we have involved in the reactions of<br />

formation of bisdithiophosphonic acids such 1,3,2,4-dithiadiphosphetane-2,4-disulfides as<br />

4-ethoxyphenyl, 3,5-di-tret-butyl-4-hydroxyphenyl and 4-phenoxyphenyl homologues of<br />

Lawesson’s reagent and such diols as 1,3-propanediol, 1,4-butandiol, neopentyl glycol,<br />

bis(2-hydroxyethyl)sulfide and tri(ethylene glycol). These reactions proceed at 50-60 o C for 1-2 h in<br />

benzene solutions. The 31 P NMR spectra of bisdithiophosphonic acids obtained show singlets at P<br />

86-87 ppm.<br />

Ar-P P-Ar + X<br />

OH<br />

OH<br />

50-60<br />

Ar-P<br />

SH<br />

O<br />

HS<br />

O<br />

P-Ar<br />

X<br />

o S<br />

S<br />

S<br />

S<br />

C, 1-2 h<br />

C<br />

6<br />

H<br />

6<br />

S S<br />

Ar = 4-MeOC<br />

6<br />

H<br />

4<br />

, 4-EtOC<br />

6<br />

H<br />

4<br />

, HO<br />

,<br />

; X = , , ,<br />

140<br />

O O<br />

To obtain metal complexes of bisdithiophosphonic acids we have used two approaches. One of<br />

them involves the previous in situ preparation of the corresponding bisammonium salts of these<br />

thioacids ( P 107 ppm) and their following subsitution reaction with Nickel(II) nitrate or zinc<br />

chloride. Other method of synthesizing similar complexes was based on the refluxing of mixture of<br />

bisdithiophosphonic acids with metal oxides such as Cobalt(II), Copper(II), Nickel(II) and Zinc<br />

oxides in benzene suspensions for 11-25 h with evaluation of water formed. Metal complexes of<br />

bisdithiophosphonic acids were isolated as yellow powders. The 31 P NMR spectra of these<br />

complexes reveal signals at P 96-104 ppm. In the IR spectra bands of valence vibrations of the<br />

-1<br />

P=S and P-S bonds of complexes obtained are mixed and revealed in the region of 560 cm that<br />

suggest a chelating behavior of the ligands.<br />

Reference<br />

[1] Kutyrev G.A., Korolev O.S., Cherkasov R.A., Pudovik A.N., Safiullina N.R., Yarkova E.G., Lebedeva O.Ye., Zh.<br />

Obsch. Khim. (Russ.), 1986, 56, 1227.


O-40<br />

SYNTHESIS AND BIOLOGICAL EVALUATION OF A HIGHLY REACTION Zn(II)<br />

MONONUCLEAR COMPLEX FOR PHOSPHODIESTER CLEAVAGE<br />

Chao Li a , Ren-Zhong Qiao a,b *, Yu-Fen Zhao b *<br />

a b<br />

Department of Pharmaceutical Engineering, Beijing University of Chemical Technology, Beijing 100029, China. The<br />

Key Laboratory of Bio-organic Phosphorus Chemistry and Chemical Biology, Ministry of Education,<br />

There is an increasing interest in the realisation of small and robust artificial DNA hydrolytic<br />

agents for their potential applications not only in molecular biology but also in the development of<br />

new drugs, recently. [1] Many nucleases are metalloenzymes. Among the physiologically relevant<br />

metal ions, Zn (II) is probably the best suited metal ion for the development of artificial<br />

metallonucleases. [2] However, its reactivity is somewhat lower than that of the other commonly<br />

employed transition-metal ions, [3] especially mononuclear Zn (II) complexes. [4] We expect that the<br />

catalytic activity of the small molecular Zn (II) complexes can be enhanced through some<br />

modificators. Here, we first report synthesis, characterization and biological evaluation of a novel<br />

class of Zn (II) complexes which contain oligopolyamide and bis(2-benzimidazolylmethyl)amine<br />

conjugated by flexible linker. In a detailed set of experiments, we find that the novel Zn (II)<br />

complexes can hydrolyze duplex DNA efficiently, bearing some selectivity.<br />

O 2 N<br />

N<br />

CH 3<br />

O<br />

H<br />

N<br />

N<br />

CH 3<br />

O<br />

n<br />

H<br />

N<br />

n=1,2 or 3<br />

O<br />

HN<br />

N<br />

HN<br />

N<br />

N<br />

Zn ClO 4<br />

ClO 4<br />

Figure1. The novel nucleases and gel electrophoresis of cleavage reaction of pUC18 DNA<br />

We found optimal condition of cleavage reaction through a series of optimize experiment,<br />

including pH value, concentration, time and temperature. The preliminary biological activity studies<br />

showed that the efficient hydrolysis of plasmid DNA was observed at lower reaction concentration<br />

and short time. In contrast to the complexes without oligopolyamide, the minimum of reaction<br />

concentration and time decreased apparently in the presence of the novel Zn (II) complex.<br />

Interestingly, at a high reaction concentration (1.2mM), Zn (II) complex converted the plasmid<br />

DNA to a new band.<br />

References<br />

1. Livieri, M.; Mancin, F.; Tonellato, U.and Chin, J. Chem. Commun., 2004, 2862-2863.<br />

2. Boseggia, E.; Gatos, M.; Lucatello, L.; Mancin, F.; Moro, S.; Palumbo, M.; Sissi, C.; Tecilla, P.; Tonellato, U.and<br />

Zagotto, G. J. Am. Chem. Soc. 2004, 126, 4543-4549.<br />

3. Hegg, E. L.; Burstyn, J. N. Coord. Chem. ReV. 1998, 173, 133-165.<br />

4. Basile, L. A.; Raphael, A. L.; Barton, J. K. J. Am. Chem. Soc. 1987, 109, 7550-7551. Project supported by the<br />

National Natural Science Foundation of China (No. 20572008).<br />

141<br />

FormⅡ<br />

FormⅢ<br />

FormⅠ<br />

new band<br />

ctrl 0.05mM 2.2mM<br />

4000<br />

3500<br />

3000<br />

2500<br />

2000<br />

1500<br />

1000<br />

500


O-41<br />

COMPLEXES OF CROWN-CONTAINING N-PHOSPHORYLTHIOUREAS<br />

WITH Ni(II) CATION<br />

F. D. Sokolov*, S. V. Baranov, N. G. Zabirov, R. A. Cherkasov<br />

Kazan State University, Russia, Kazan, *E-mail: felix.sokolov@ksu.ru<br />

Previously we have found, that interaction of N-phosphorylthioureas of common formula<br />

RNHC(S)NHP(O)(OPr-i)2 (HL; R = Alk, Ar) with Ni(II) and Pd(II) cations affords square-planar<br />

M (II) L2 chelates, having unusual 1,3-S,N-coordination of the ligands. The realization of alternative<br />

coordination modes (1,3-S,N- vs. 1,5-S,O-) takes place due to higher degree of negative charge<br />

delocalization in SCN-fragment in comparison with phosphorous-containing moiety SCNPO.<br />

Strong field of conjugated 1,3-S,N-ligands leads to a gain in energy for square-planar complexes of<br />

Ni(II) and Pd(II) cations. Accessory factor of 1,3-S,N-chelates stabilization is a forming of strong<br />

intramolecular H-bonds RNH ... O=P.<br />

O H<br />

R'<br />

P<br />

N<br />

R' N<br />

H S<br />

O<br />

O<br />

O<br />

O<br />

O<br />

O<br />

O<br />

O<br />

142<br />

O<br />

O<br />

R'<br />

R'<br />

O<br />

P<br />

N<br />

H<br />

N<br />

S M S<br />

N<br />

H<br />

N R'<br />

P<br />

O R'<br />

This work is devoted to the coordination properties of analog containing benzo-15-crown-5<br />

moiety. Changing of the coordination mode form from 1,3-S,N in Ni (II) L2 chelates to 1,5-O,S in<br />

six-coordinated complexes Ni(Dn)2L2, formed by interaction with donor ligands (Dn for example,<br />

pyridine) makes it interesting as а base for molecular triggers design.<br />

Reference<br />

[ 1 ] F. D. Sokolov, N. G. Zabirov, L. N. Yamalieva, V. G. Shtyrlin, Ruslan R. Garipov, V. V. Brusko, A.Yu. Verat, S. V.<br />

Baranov, Piotr Mlynarz, T.Glowiak, H.Kozlowski // Inorganica Chimica Acta. – 2006 .- V. 359, N. 7. – P. 2087–2096.<br />

O<br />

O<br />

O<br />

O<br />

O


O-42<br />

NOVEL HETEROCYCLIC P-LIGANDS: SYNTHESIS AND APPLICATION<br />

IN Pt(II) COMPLEXES<br />

György Keglevich, 1 Andrea Kerényi, 1 Melinda Sipos, 1 Annamária Balassa, 1<br />

Beatrix Mayer 1 and Tamás Körtvélyesi 2<br />

1<br />

Department of Organic Chemical Technology, Budapest University of Technology and Economics, H-1521<br />

Budapest,Hungary 2 Department of Physical Chemistry, University of Szeged, H-6701 Szeged, Hungary<br />

We aimed at the development of special P-ligands. In one part of our project,<br />

1,2,3,6-tetrahydrophopshinine oxides with an exocyclic P-function (e.g. 1) were prepared by the<br />

AlMe3-mediated addition of >P(O)H species on the double-bond of 1,2-dihydrophosphinine oxides<br />

in a diastereoselective manner. The P-heterocycles (e.g. 1) were then subjected to catalytic<br />

hydrogenation to give 1,2,3,4,5,6-hexahydrophosphinine oxides (e.g. 2) again diastereoselectively.<br />

The stereostructure and conformation of the products (e.g. 1 and 2) was evaluated on the basis of<br />

theoretical calculations and spectroscopy. Double deoxygenation of 1 and 2 resulted in<br />

diphosphines (3 and 4, respectively) that were suitable bidental P-ligands to form chelate complexes<br />

5 and 6, respectively in reaction with (PhCN)2PtCl2.<br />

O<br />

Ph 2P<br />

O<br />

Ph 2P<br />

Cl<br />

P<br />

O Ph<br />

1<br />

H 2<br />

O<br />

P<br />

2<br />

Ph<br />

Me<br />

Pd/C<br />

Me<br />

Cl3SiH pyridine<br />

Cl3SiH pyridine<br />

Ph 2P ..<br />

Ph 2P ..<br />

Cl<br />

.. P<br />

Ph<br />

3<br />

.. P<br />

Ph<br />

4<br />

143<br />

Me<br />

Me<br />

(PhCN) 2PtCl 2<br />

ArH<br />

(PhCN) 2PtCl 2<br />

In another line of this research, achiral and chiral dibenzo[c.e][1,2]oxaphosphorins with different<br />

P-functions (8) were synthesized that were converted to the corresponding platinum (II) complexes<br />

(9). Ring opening of a dibenzooxaphosphorin (10) afforded<br />

1-hydroxy-1'-diphenylphosphino-biphenyl (11) that was used in complexation with (PhCN)2PtCl2 to<br />

furnish complex 12. A bidental P-ligand, as well as its complex were also developed.<br />

7<br />

O<br />

P<br />

Cl<br />

PhMgBr<br />

O<br />

P<br />

Ph<br />

YH<br />

N<br />

ArH<br />

1) PhMgBr<br />

2) H2O 10 11<br />

8<br />

O<br />

P<br />

Y<br />

Y = NEt2, H<br />

OH<br />

PPh2 (PhCN) 2PtCl 2<br />

NH<br />

ArH<br />

Me<br />

Ph ,<br />

Me<br />

(PhCN) 2PtCl 2<br />

ArH<br />

ArH<br />

O<br />

H<br />

Me<br />

Me<br />

Cl<br />

Cl<br />

Ph 2P<br />

Pt<br />

Cl<br />

Ph 2P<br />

Pt<br />

Cl<br />

Cl<br />

P<br />

5<br />

P<br />

6<br />

Ph<br />

Ph<br />

Cl Cl<br />

O<br />

Pt<br />

O<br />

P<br />

P<br />

Y Y<br />

9<br />

Me<br />

Me<br />

Ph<br />

P Cl<br />

Ph<br />

OH<br />

Cl<br />

Pt<br />

12<br />

HO<br />

P<br />

Ph<br />

Ph


O-43<br />

DoM CHEMISTRY OF PHOSPHINIC AMIDES: SYNTHESIS OF LIGANDS AND THEIR<br />

APPLICATION IN ROBUST HIGH PERFORMANCE CATALYSTS<br />

D. Bradley G. Williams<br />

Department of Chemistry, University of Johannesburg, PO Box 524<br />

Auckland Park, 2006, South Africa. dbgw@rau.ac.za<br />

Ligands are responsible for the selectivity of transition metal catalysed reactions. 1 Ligand design<br />

is therefore an integral part in the improvement in reactivity and selectivity of metal catalysed<br />

reactions.<br />

Synthesis and catalysis<br />

Directed ortho-metallation (DoM) 2 was used to synthesise a variety of ortho-substituted<br />

phosphinic amides (2). With R2PCl as the electrophile, the resulting ligand showed excellent<br />

activity in Pd catalysed Suzuki reactions with deactivated aryl bromides and some aryl chlorides.<br />

Further manipulation<br />

These substituted phosphinic amides were hydrolysed with HCl (aq), chlorinated (SOCl2) and<br />

reacted with a range of aryl Grignard reagents to form highly functionalised unsymmetrical triaryl<br />

phosphine oxides. These oxides can be reduced to the active phosphine ligands using trichlorosilane,<br />

providing a facile route to highly functionalised P-chiral ligands.<br />

Ph 2P Cl<br />

E = electrophile<br />

HNR2<br />

H 2O 2<br />

O<br />

P<br />

NR 2<br />

s-BuLi<br />

Electrophile<br />

144<br />

O<br />

P<br />

NR 2<br />

E<br />

1. HCl (aq)<br />

2. SOCl2 3. R`MgX<br />

1 2 3<br />

Ligands as catalysts<br />

for E = PCy 2 and PPh 2<br />

Catalysis with<br />

unsymmetrical<br />

phosphine<br />

O<br />

P<br />

R`<br />

E<br />

HSiCl 3<br />

R<br />

P E<br />

The synthesis of ligands 2, their conversion into unsymmetrical ligands 4, and the application of<br />

these ligands in catalysed transformations, with surprising results, will be discussed.<br />

Reference<br />

[1]van Leeuwen, P. W. N. M.; Homogeneous catalysis, Kluwer Academic Publishers, London, 2003.<br />

[2]Sniekus, V.; Chem Rev., 1990, 90, 879<br />

4


O-109<br />

DESIGN, SYNTHESIS, AND APPLICATION OF PHOSPHAALKENES TO UNIQUE<br />

PALLADIUM AND GOLD CATALYSTS<br />

Shigekazu Ito, a Matthias Freytag, a Hongze Liang, a Katsunori Nishide, a Masaaki Yoshifuji a,b<br />

a<br />

Department of Chemistry, Graduate School of Science, Tohoku University,Aoba, Sendai 980-8578,<br />

Japan<br />

b<br />

Department of Chemistry, The University of Alabama, Tuscaloosa 35487-0336, USA.<br />

Phosphaalkenes bearing P=C double bond(s) display several intriguing properties affording novel<br />

metal-complexes of unprecedented catalytic activities. We demonstrate here novel properties of<br />

1,3-diphosphapropenes in relation to palladium chemistry and of phosphaalkene-gold complexes<br />

showing specific catalytic activity. A stable 2-silyl-1,3-diphosphapropene 1 was prepared by<br />

employing a 1-silyl-2-phosphaethenyllithium and its structure has already been discussed based on<br />

the 31 P NMR spectroscopic, X-ray crystallographic, and theoretical data. The unsymmetrical P2<br />

ligand 1 afforded the corresponding dichloropalladium(II) chelate complex which reveals<br />

considerable catalytic activity in Sonogashira cross-coupling reactions [1].<br />

Taking the π-electron accepting property of P=C double bond into account, phosphaalkenes are<br />

expected as a suitable ligand for gold catalysts which might show high electrophilic affinity for<br />

unsaturated carbon-carbon bonds. Indeed, we found that chlorogold(I) complexes bearing<br />

phosphaalkenes 2–4 catalyze cycloisomerization of 1,6-enyne derivatives without activation by any<br />

silver additives, indicating that the P=C structure, the aurophilic gold-gold contact, and the sulfur<br />

atom may increase electrophilicity of the gold center. The gold-gold contact appeared to control<br />

conformation of the ligand 2. Additionally, we employed some 1,3-diphosphapropenes for<br />

formation of gold complexes which showed catalytic activity in a couple of intriguing molecular<br />

transformations [2].<br />

Mes*<br />

P<br />

SiMe 3<br />

PPh 2<br />

Mes*<br />

P<br />

Me<br />

P<br />

Mes*<br />

Me Mes* P P Mes*<br />

1<br />

2<br />

Mes* = 2,4,6-t-Bu3C6H2 3<br />

Reference<br />

[1] S. Ito, K. Nishide, M. Yoshifuji, Organometallics 2006, 25, 1424.<br />

[2] M. Freytag, S. Ito, M. Yoshifuji, Chem. Asian J. 2006, 1, 693.<br />

145<br />

Ph Ph<br />

Mes*<br />

P<br />

4<br />

SMe<br />

SMe


P-18<br />

NOVEL 36- AND 38-MEMBERED P,N-CONTAINING CYCLOPHANES WITH LARGE<br />

HYDROPHOBIC CAVITIES<br />

D.V.Kulikov a , A.S.Balueva a , A.A.Karasik a , A.V.Kozlov a , Sh.K.Latypov a , O.N.Kataeva a , P.Lönnecke b ,<br />

E.Hey-Hawkins b , O.G.Sinyashin a .<br />

a<br />

A. E. Arbuzov Institute of Organic and Physical Chemistry, Russian Academy of Sciences, Arbuzov str. 8, Kazan,<br />

Russia, 420088. E-mail: culdim@mail.ru<br />

b<br />

Institut für Anorganische Chemie der Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany. E-mail:<br />

hey@rz.uni-leipzig.de<br />

The novel 36- and 38-membered cage P,N-containing cyclophanes 1a-d and 2 a-c were obtained<br />

in good yields in the course of the covalent self-assembly processes [1,2] in three-component<br />

systems: primary phosphine-formaldehyde-diamine with the spacers containing three p,m,p- or<br />

p,p,p-phenylene rings linked by one-atom bridges.<br />

R<br />

O<br />

O<br />

P<br />

N<br />

N<br />

P<br />

O<br />

O<br />

R<br />

2<br />

O<br />

O<br />

DMF, 110 C o<br />

NH 2<br />

NH 2<br />

4 R-PH2 +<br />

8 H2CO H 2N<br />

H 2N<br />

146<br />

Me<br />

Me<br />

DMF or TolH<br />

110 C o<br />

Me<br />

Me<br />

R<br />

P<br />

N<br />

N Me<br />

R<br />

P<br />

N<br />

N<br />

1 a-d<br />

P<br />

R<br />

R = (a), (b), (c), CH2 (d)<br />

Fe<br />

Me Me<br />

2 a-c<br />

The cavity of 1a may be described as two halves of a truncated rhombohedral prism, which are<br />

moved apart by the m-dioxiphenylene fragments, whereas the macrocycle 2c shows a helical<br />

structure in crystal; the volumes of internal hydrophobic cavities are about 130-140 Å 3 .<br />

1a 2c<br />

Cyclophanes 1a and 2c form inclusion complexes with DMF and benzene respectively; one of<br />

the benzene molecules is encapsulated by the cavity of 2c both in crystal and in benzene solution.<br />

2<br />

R<br />

P<br />

Me<br />

Me<br />

Me<br />

Me<br />

Me<br />

N<br />

R<br />

P<br />

P<br />

R<br />

N


Financial support from Volkswagen Foundation, RFBR (No. 06-03-32754-a), Russian Science<br />

Support Foundation and from President’s of RF Grant for the support of leading scientific<br />

schools (No. 5148.2006.3) is gratefully acknowledged.<br />

References:<br />

1. A.S.Balueva, R.M.Kuznetsov, S.N.Ignat’eva et al.. Dalton Trans., 2004, 442<br />

2. R.N.Naumov, A.A.Karasik, O.G.Sinyashin et al. Dalton Trans., 2004, 357.<br />

147


P-20<br />

PHOSPHORUS FUNCTIONALISED CARBENES: SYNTHESIS AND<br />

COORDINATION PROPERTIES<br />

D.Morvan, J.J.Yaouanc, P.A.Jaffrès, J.F.Capon, P.Schollhammer, J.Talarmin, F.Gloaguen.<br />

CEMCA, UMR CNRS 6521, Faculté des sciences et techniques, Université de Bretagne Occidentale, 6 avenue le<br />

Gorgeu, 29238 Brest (France).<br />

Metal complexes with N-Heterocyclic carbene (NHC) ligands are widely used in organometallic<br />

chemistry1. NHC are well-known to be a good donor groups and the incorporation of functionality<br />

is possible on the nitrogen atoms. We are interested in the synthesis of functionalised NHC with<br />

functionality offering a new coordination centre or possessing hemilabile properties. In particular,<br />

the functionalisation of NHC with phosphonate (A) leads us to develop original methods for their<br />

synthesis. The organometallics complexes, incorporating the functionalised NHC, has been<br />

synthesised following two pathways: 1- by using the silver carbene as intermediate2; 2- by using<br />

the free carbene. According to the first method, several rhodium complexes has been synthesised<br />

and characterised. The use of these rhodium complexes (B), as precursor of active catalysts for C-C<br />

coupling, is still under investigation. Beside the chemistry of these rhodium complexes, we have<br />

designed models of hydrogenase3a possessing either a phosphite (complex C) or a carbene ligand3b<br />

(D). These complexes have been fully characterised by X-ray diffraction and by electrochemistry<br />

methods. These results encourage us to study model of hydrogenase having functionalised NHC as<br />

ligand.<br />

References<br />

[1](a) Bourissou, D.; Guerret, O.; Gabbaï, F. P. ; Bertrand G. Chem. Rev. 2000, 100, 39. (b) Herrmann, W. A.Angew.<br />

Chem. Int. Ed. 2002, 41, 1290. (c) Arduengo, A.J. III.Acc. Chem. Res. 1999, 32, 913.<br />

[2] Wang, H. M. J.; Lin I. J. B. Organometallics 1998, 17, 972.<br />

[3] (a) Capon, J.-F.; Gloaguen, F.; Schollhammer, P.; Talarmin, J.; J. Coord. Chem. Rev. 2005, 249, 1664. (b)Capon,<br />

J.-F.; El Hassnaoui, S.; Gloaguen, F.; Schollhammer, P.; Talarmin, J. ; Organometallics ; 2005; 24(9);2020-2022.<br />

148


P-22<br />

EXTRACTION PROPERTIES OF 1,10-DA-18-CROWN-6, MODIFIED BY EXOCYCLYC<br />

CHELATING GROUPS<br />

Felix D. Sokolov,* Maria G. Babashkina, Damir A. Safin,<br />

Nail G. Zabirov, Rafael A. Cherkasov<br />

A.M. Butlerov Chemical Institute, Kazan State University, 420008, Kremlevskaya str. 18, Kazan, Russia; e-mails:<br />

felix.sokolov@ksu.ru<br />

Modification of macrocycles with pendant chelate units affords new types of selective extraction<br />

agents and ion receptors. Extraction of potassium picrate from D2O by CDCl3 solution of a complex<br />

[{Cu(PPh3)2}2L] leads to almost quantitative formation of complex [K{Cu(PPh3)2}2L] + Pic - . The<br />

extraction is insignificant for Li + and Na + cations and formation of the complexes can not be fixed<br />

by NMR method. Crown-containing thiourea H2L shows no selectivity in the similar conditions.<br />

O<br />

O<br />

P NH O O<br />

S C N N<br />

S O O<br />

H 2L<br />

O<br />

HN P<br />

C<br />

S<br />

S<br />

O<br />

149<br />

Ph Ph<br />

O<br />

O<br />

P N O O<br />

Ph<br />

S<br />

P<br />

Cu<br />

Ph<br />

P<br />

Ph<br />

Ph<br />

S C N N C S<br />

Cu<br />

S<br />

Ph<br />

P<br />

Ph<br />

Ph P<br />

PhPh<br />

Ph<br />

O O<br />

Cu(PPh3) 2L<br />

N P<br />

O<br />

O<br />

This research was supported by BRHE 2004 (№ Y2-C-07-02), RFBR (03-03-32372-a,<br />

03-03-96225-r2003tatarstan_a) grant programs.


P-26<br />

CHIRAL SPIRO MONOPHOSPHITES FOR Rh-CATALYZED ASYMMETRIC<br />

ADDITION OF ARYLBORONIC ACIDS TO ALDEHYDES, KETONES AND IMINES<br />

Hai-Feng Duan, Shou-Fei Zhu, Yi-Xia Jia, Qi-Lin Zhou*<br />

State Key Laboratory and Institute of Elemento-organic Chemistry, Nankai University<br />

Tianjin 300071, China.<br />

The transition-metal-catalyzed asymmetric addition of aryl organometallic reagents to aldehydes,<br />

ketones and imines is a very attractive research topic because the products, chiral alcohols and<br />

amines, are important intermediates for the synthesis of biologically and pharmceutically active<br />

compounds. However, the highly enantioselective examples in this significantly useful reaction are<br />

quite limited. The arylboronic acids are ideal organometallic reagents for this important<br />

transformation due to their low cost, low toxicity, stability toward air and moisture, and tolerance to<br />

a variety of functional groups. We herein disclose the highly enantioselective addition of<br />

arylboronic acids to aldehydes, ketones and imines catalyzed by the rhodium complexes of spiro<br />

monophosphite ligands 1. This approach extends the scope of the asymmetric addition of<br />

arylboronic acids and provides a practical access to the synthesis of enantiomer-enriched alcohols<br />

and amines.<br />

OH<br />

HO<br />

R<br />

O<br />

R'<br />

+<br />

R = aryl, alkenyl<br />

R' = H, CF 3, CO 2Bn<br />

Ar 1<br />

1.PCl 3 /NEt 3<br />

2. ROH/NEt 3<br />

(S)-SPINOL (S)-1<br />

ArB(OH) 2<br />

N Ts + Ar 2 B(OH) 2<br />

O<br />

P<br />

O<br />

R<br />

[Rh] (1 mol%)<br />

(S)-1e (2.1 mol%)<br />

KF (2 equiv)<br />

Toluene/H2O (1/1), 0°C<br />

[Rh] (3 mol %)<br />

(S)-1c (6 mol%)<br />

KF (4 equiv)<br />

Toluene/H 2O (1/1), 35 °C<br />

150<br />

a: R = Et<br />

b: R = t Bu<br />

c: R = Ph<br />

d: R = 1-Naphthy<br />

e: R = 2-Naphthy<br />

OH<br />

*<br />

R Ar<br />

R'<br />

up to 93% ee<br />

Ar 1<br />

Ar 2<br />

N<br />

H<br />

Ts<br />

up to 96% ee<br />

f: R = 4-MeOPh<br />

g: R = 4-CF 3Ph<br />

h: R = 2,6-DiMePh<br />

i: R = 2-MeOPh<br />

j: R = Phenanthrene<br />

Acknowledgment: We thank the National Natural Science Foundation of China, and the Ministry of<br />

Education of China for financial support.<br />

References:<br />

(1) Hayashi, T.; Yamasaki, K. Chem. Rev. 2003, 103, 2829.<br />

(2) Duan, H.-F.; Xie, J.-H.; Shi, W.-J.; Zhang, Q.; Zhou, Q.-L. Org. Lett. 2006, 8, 1479.<br />

(3) Duan, H.-F.; Jia, Y.-X.; Wang, L.-X.; Zhou, Q.-L. Org. Lett. 2006, 8, 2567.


P-59<br />

SYNTHESIS OF O,O-DIALKYL-2-OXO-2-(4-(SELENOMOR<br />

PHOLINOSULFONYL)PHENYLAMINO)ETHYLPHOSPHONATE<br />

Fang Wang B , Liming Hu A *, Xiaopeng Li A , Xuemei Xu A<br />

a<br />

College of Life Sciences and Bioengineering, Beijing University of Technology, Beijing 100022, China;<br />

b<br />

College of Science Beijing University of Chemical Technology,Beijing 100029, China<br />

A series of O,O-dialkyl 2-oxo-2-(4-(selenomorpholinosulfonyl)phenylamino)ethylphosphonate<br />

were synthesized by reactions of 2-chloro-N-(4-(selenomorpholinosulfonyl)phenyl)acetamide with<br />

dialkyl phosphite in the presence of sodium hydride. The structure of all new compounds has been<br />

confirmed by 1 H NMR, 31 P NMR, IR, Mass spectroscopy and elemental analyses.<br />

Science selenium was found to be an active center of glutathione peroxidase(GSH-Px), Which<br />

can catalyze and decompose liquid hydroperoxide or hydrogen peroxide, the bioactivity of selenium<br />

has developed rapidly 1-2 . Selenoorganic compound, such as Ebselen, was found the function against<br />

biological damage caused in vivo by reactive hydroperoxides 3-7 . This increased a striking interest in<br />

developing new selenoorganic compound for therapy. They have been potentially used in a variety<br />

of fields varying from medicinal to agriculture application 8-10 . Recently, the antibiotic activity and<br />

plant systemic activity of selenomorpholine derivatives were studied 11-12 . In our pervious work,<br />

many selenoorganic compounds were synthesized and exhibited excellent pharmacological<br />

effect 13-15 . In this work, we present synthesis of O,O-dialkyl-2-oxo-2-<br />

(4-(selenomorpholino-sulfonyl)phenylamino)ethylphosphonate.<br />

Reference<br />

[1] Ji, Xiuling; Hu, Weixuan; Cheng, Jinping; et al Ecotoxicology and Environmental Safety. 64(2), 171-177(2006)<br />

[2] Bansal, M. P.; Kaur, Parminder. Indian Journal of Experimental Biology. 43(12), 1119- 1129 (2005)<br />

[3] Pearson, Jason K.; Boyd, Russell J. Journal of Physical Chemistry A. 110(28), 8979- 8985(2006)<br />

[4] Filipovska, Aleksandra; Kelso, Geoffrey F.; Brown, Stephanie E. et al. Journal of Biological Chemistry.<br />

280(25),24113-24126 (2005)<br />

[5] Giurg, M.; Wojtowicz, H.; Mlochowski, J. Polish Journal of Chemistry. 76(4), 537-542(2002)<br />

[6] Sattler, Wolfgang; Maiorino, Matilde; Stocker, Roland. Archives of Biochemistry and Biophysics. 309(2),<br />

214-21(1994)<br />

[7] Maiorino, Matilde; Roveri, Antonella; Coassin, Mariagrazia. et al. Biochemical Pharmacology. 37(11),<br />

2267-71(1988)<br />

[8] Smrkolj, Polona; Germ, Mateja; Kreft, Ivan. et al. Journal of Experimental Botany. 57(14), 3595-3600(2006)<br />

[9] Robbins, Rebecca J.; Keck, Anna-Sigrid; Banuelos, Gary. et al. Journal of Medicinal Food. 8(2), 204-214 (2005)<br />

[10] Pappas, Athanasios C.; Karadas, Filiz; Surai, Peter F.et al. Journal of Trace Elements in Medicine and Biology.<br />

20(3), 155-160(2006)<br />

151


P-105<br />

SYNTHESIS OF CHIRAL SPIROBITETRALINE PHOSPHORAMIDITE LIGANDS<br />

Hai-Feng Duan, Shou-Fei Zhu, Yi-Xia Jia, Qi-Lin Zhou*<br />

State Key Laboratory and Institute of Elemento-organic Chemistry, Nankai University<br />

Tianjin 300071, China.<br />

The transition-metal-catalyzed asymmetric addition of aryl organometallic reagents to aldehydes,<br />

ketones and imines is a very attractive research topic because the products, chiral alcohols and<br />

amines, are important intermediates for the synthesis of biologically and pharmceutically active<br />

compounds. However, the highly enantioselective examples in this significantly useful reaction are<br />

quite limited. The arylboronic acids are ideal organometallic reagents for this important<br />

transformation due to their low cost, low toxicity, stability toward air and moisture, and tolerance to<br />

a variety of functional groups. We herein disclose the highly enantioselective addition of<br />

arylboronic acids to aldehydes, ketones and imines catalyzed by the rhodium complexes of spiro<br />

monophosphite ligands 1. This approach extends the scope of the asymmetric addition of<br />

arylboronic acids and provides a practical access to the synthesis of enantiomer-enriched alcohols<br />

and amines.<br />

OH<br />

HO<br />

R<br />

O<br />

R'<br />

+<br />

R = aryl, alkenyl<br />

R' = H, CF 3, CO 2Bn<br />

Ar 1<br />

1.PCl 3 /NEt 3<br />

2. ROH/NEt 3<br />

(S)-SPINOL (S)-1<br />

ArB(OH) 2<br />

N Ts + Ar 2 B(OH) 2<br />

O<br />

P<br />

O<br />

R<br />

[Rh] (1 mol%)<br />

(S)-1e (2.1 mol%)<br />

KF (2 equiv)<br />

Toluene/H2O (1/1), 0°C<br />

[Rh] (3 mol %)<br />

(S)-1c (6 mol%)<br />

KF (4 equiv)<br />

Toluene/H 2O (1/1), 35 °C<br />

152<br />

a: R = Et<br />

b: R = t Bu<br />

c: R = Ph<br />

d: R = 1-Naphthy<br />

e: R = 2-Naphthy<br />

OH<br />

*<br />

R Ar<br />

R'<br />

up to 93% ee<br />

Ar 1<br />

Ar 2<br />

N<br />

H<br />

Ts<br />

up to 96% ee<br />

f: R = 4-MeOPh<br />

g: R = 4-CF 3Ph<br />

h: R = 2,6-DiMePh<br />

i: R = 2-MeOPh<br />

j: R = Phenanthrene<br />

Acknowledgment<br />

We thank the National Natural Science Foundation of China, and the Ministry of Education of<br />

China for financial support.<br />

References<br />

(1) Hayashi, T.; Yamasaki, K. Chem. Rev. 2003, 103, 2829.<br />

(2) Duan, H.-F.; Xie, J.-H.; Shi, W.-J.; Zhang, Q.; Zhou, Q.-L. Org. Lett. 2006, 8, 1479


P-161<br />

SYNTHESIS AND MECHANISM OF PHOSPHAISOQUINOLIN-1-ONES BY<br />

Pd(II)-CATALYZED CYCLIZATION OF<br />

O-(1-ALKYNYL)PHENYLPHOSPHONAMIDE MONOESTERS<br />

Wei Tang and Yi-Xiang Ding*<br />

Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences,<br />

354 Fenglin Lu, Shanghai 200032, China<br />

Isoquinolin-1-ones have gained considerable synthetic and pharmacological interest for a long<br />

time because of their diverse bioactivities, Since there is a remarkable similarity in reactivity and<br />

bioactivities between the carbon species and their phosphorus counterparts, 1 one can anticipate that<br />

the phosphonamide analogues of isoquinolin-1-ones (i.e., phosphaisoquinolin-1-ones) would have<br />

potential bioactivities similar to those of isoquinolin-1-ones.<br />

The transition-metal-catalyzed cyclization of alkynes possessing a nucleophile in proximity to<br />

the triple bond is an important process in organic synthesis, which can construct various<br />

heterocycles in an efficient and atom economic way. 2 In this paper, we report a mild and efficient<br />

palladium-catalyzed intramolecular cyclization of o-(1-alkynyl)phenylphosphonamide monoethyl<br />

esters 1, leading to the formation of the phosphaisoquinolin-1-ones 2 (Scheme 1).<br />

The current reaction shows very high regioselectivity to give 6-endo-dig cyclization product. In<br />

each case, only the six-membered endocyclic phosphaisoquinolin-1-ones were obtained, To probe<br />

whether the synthesized phosphaisoquinolin-1-ones possessed biological activities, their in vitro<br />

anti-tumor properties were evaluated in an A-549 lung cell line by the SRB assay. At a<br />

concentration of 10-4 mol/L, the A-549 lung cell growth inhibition ratios of 2a, 2c, 2d, 2e, 2f, 2h,<br />

2j, 2l are 97.2%, 74.7%, 83.2%, 97.0%, 97.2%, 97.2%, 97.5%, 97.2%, respectively; but their<br />

biological activities drop obviously with the decrease of concentration. We capture some<br />

unexpected intermediates 4, 5, 6 (Scheme 2) by ESI-MS,3 CSI-MS4 technic, which could leads to a<br />

deep understanding of the mechanism of the palladium-catalyzed cyclization.<br />

153


Recfereces:<br />

(1) Dillon, K. B.; Mathey, F.; Nixon FRS, J. F. Phosphorus: The Carbon Copy; John Wiley & Sons: Chichester, 1998.<br />

(2) Alonso, Francisco, Beletskaya, Irina P., Yus, Miguel., Chem.Rev. 2004, 104, 3079-3159.<br />

(3) a) L. S. Santos, J. O. Metzger, Angew. Chem. Int. Ed. 2006, 45, 977-981; d) C. Trage, D. Schröder, H. Schwarz;<br />

Chem. Eur. J. 2005, 11, 619 – 627; m) H. Guo, R. Qian, Y. Liao, S. Ma, and Y. Guo, J. Am. Chem. Soc. 2005, 127,<br />

13060-13064.<br />

(4) a) L. Pazderski, E. Szłyk, J. Sitkowski, B. Kamienski, L. Kozerski, J. Tousek, R. Marek Magn. Reson. Chem. 2006;<br />

44: 163–170; b) E. Szłyk, A. Grodzicki, L. Pazderski, A. Wojtczak, J. Chatłas, G. Wrzeszcz, J.Sitkowski, B. Kamienski,<br />

J. Chem. Soc., Dalton Trans., 2000, 867–872.<br />

154


P-174<br />

NOVEL PYRIDO- AND BENZO-ANNULATED 1,3-AZAPHOSPHOLES<br />

J. Heinicke, a M. S. S. Adam, a B. R. Aluri, a P.G. Jones b<br />

EMA-University Greifswalda (Germany), Technical University Braunschweigb (Germany)<br />

Benzazaphospholes are particularly stable π-excess aromatic heterophospholes [1], suitable for<br />

the study of donor-substituted derivatives for use as hybrid ligands and in catalysis. Syntheses of<br />

novel pyrido- and benzo-annulated 1,3-azaphospholes, comprising Pd-catalyzed C-N and C-P<br />

couplings, reduction and ring closure, are presented (e.g. Scheme). Ni-catalyzed P-C coupling and<br />

reductive cyclization, applicable for 1H-1,3-benzazaphospholes, fail for pyridine- or N-tertiary<br />

derivatives. Tolerance or restrictions by other functions will be reported.<br />

X<br />

1. LiAlH 4<br />

2. Me 2NCH(OMe) 2<br />

X = CH, N<br />

Pd catalyst<br />

Br<br />

+ RNH2 Br<br />

X<br />

P<br />

N<br />

R<br />

X<br />

Br<br />

NH<br />

R<br />

1. tBuLi<br />

2. Electrophile<br />

155<br />

Pd catalyst<br />

HPO(OEt) 2 / base<br />

or P(OEt) 3<br />

X<br />

X<br />

P<br />

N<br />

R<br />

EtO OEt<br />

or addition product depending on<br />

substituents and conditions<br />

A first oxidation-dimerization product of a benzazaphosphole (center), trapped by<br />

cocrystallization with the respective benzazaphosphole (left and right) in a supra-molecular,<br />

hydrogen-bonded arrangement, has been characterized by X-ray structure analysis.<br />

Reference<br />

[1] R. K. Bansal, J. Heinicke, Chem. Rev. 2001, 101, 3549-3578.<br />

.<br />

P<br />

N<br />

R<br />

E<br />

O<br />

H


P-177<br />

DESIGNING PHOSPHORUS LIGANDS AT THE P-CENTER FOR ASYMMETRIC<br />

REACTIONS CATALYZED BY Rh or Pd COMPLEXES<br />

C. Darcel,* a D. Moulin, b C. Bauduin, b M. Gomès, a J.C. Henry, d M. Lagrelette, a P. Richard, a<br />

P.D. Harvey c and S. Jugé* a<br />

[a] Institut de Chimie Moléculaire de l'Université de Bourgogne,UMR CNRS 5620, 9 av. A. Savary, 21078<br />

Dijon, France; e-mail: Christophe.Darcel@u-bourgogne.fr, Sylvain.Juge@u-bourgogne.fr<br />

[b] BASF-Aktiengesellschaft; GCI/B-M 311, 67056 Ludwigshafen, Germany.<br />

[c] Département de Chimie de l'Université de Sherbrooke, Sherbrooke J1K2R1 Québec, Canada,<br />

[d] SYNTHELOR SAS- 102 impasse H. Becquerel, Dynapôle de Ludres-Fléville 54510 Ludres, France<br />

Introducing the chirality on the phosphorus atom of a ligand is of particular interest to handle the<br />

chiral environment of the catalyst center. Herein we report the diastereoselective synthesis of new<br />

P-chirogenic phosphorus ligands, AMPP 1, phosphine-phosphinites 2 and ferrocenyl aminophosphine<br />

3, and their applications in hydrogenation and allylic alkylation catalyzed by rhodium or palladium<br />

complexes, respectively. The enantioselectivity of the catalyzed reaction was considered to the light<br />

of ligands and complexes structures.<br />

R<br />

CH3 1<br />

Ph<br />

P<br />

N<br />

CH 3<br />

P<br />

O<br />

Ph<br />

R 2<br />

R 3<br />

1<br />

R 1<br />

R 2<br />

P<br />

156<br />

P<br />

O<br />

R 3<br />

R 4<br />

2<br />

Fe<br />

NR 2<br />

P<br />

R1 R2 3<br />

Our results showed that changing properly the R 1 -R 3 groups of the AMPP 1 thanks to the<br />

P-chirogenic chlorophosphine building blocks, 1 leads to hydrogenated compounds in e.e. from 99% (S)<br />

to 80% (R). 2 In addition, we have shown that the chirality beared by the phosphine part of the ligand 2,<br />

is essential for the asymmetric induction. Finally, in the case of the ferrocenyl aminophosphine 3, the<br />

phosphorus or the planar chirality are stereodeterminant, in catalyzed hydrogenation and allylation,<br />

respectively.<br />

Me<br />

Ph<br />

R 3<br />

R<br />

R<br />

H2 substrate<br />

1<br />

Me<br />

N<br />

O P<br />

Rh<br />

COD<br />

R 2<br />

MeO 2C NH<br />

These results leads us to propose models in order to explain the enantioselectivity of the catalysis.<br />

Reference<br />

1) C. Bauduin, D. Moulin, El B. Kaloun, C. Darcel, S. Jugé J. Org. Chem. 2003, 68, 4293.<br />

2) C. Darcel, D. Moulin J.C. Henry, M. Lagrelette, P. Richard, P. D. Harvey, S. Jugé, Eur. J. Org. Chem. 2007 in press.<br />

O<br />

Rh H<br />

H<br />

Ph<br />

CH 3<br />

MeO 2C NHCOMe<br />

(S)<br />

Ph


P-196<br />

N-HETEROCYCLIC CARBENE-COPPER COMPLEX-CATALYZED<br />

HYDROPHOSPHINYLATION OF ALKYNES<br />

Mingyu Niu, Hua Fu,* Yuyang Jiang and Yufen Zhao<br />

Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Ministry of Education, Department of<br />

Chemistry, Tsinghua University, Beijing 100084, P. R. China.<br />

Fax: 86-10-62781695; Tel: 86-10-62797186; E-mail: fuhua@mail.tsinghua.edu.cn<br />

N-Heterocyclic carbenes (NHCs) have emerged as a new class of ligand for homogeneous<br />

catalysis in the past decade. 1 Since Arduengo reported the first (NHC)-copper complex derived<br />

from imidazolium salt and copper triflate, 2 the NHC-copper complexes have been reported to<br />

catalyze a number of reactions. Hydrophosphinylation of alkynes is one of the most straightforward<br />

ways for the preparation of alkenylphosphine oxides, Several efficient methods for metal-catalyzed<br />

synthesis of alkenylphosphine oxides have been developed including palladium, 3 nickel, 4 rhodium, 5<br />

ytterbium-imine complex-catalyzed 6 additions of P(O)H compounds to alkynes. Recently, we have<br />

developed efficient copper-catalyzed additions of P(O)H compounds to alkynes, and the reactions<br />

provided the regio- and stereoselective E-alkenylphosphine oxides under catalysis of the<br />

commercially available and inexpensive copper catalyst system CuI/ethylenediamine. 7 Herein, we<br />

report a new method for synthesis of alkenylphosphine oxides using the NHC-copper complex as<br />

the catalyst.<br />

R 1<br />

+<br />

H<br />

Cat. =<br />

O R 2<br />

P<br />

R 3<br />

157<br />

5mol % Cat.<br />

N N<br />

References:<br />

(1) For reviews, see: (a) D. Bourissou, O. Guerret, F. P. Gabbai, G. Bertrand, Chem. Rev. 2000, 100, 39. (b) W. A.<br />

Herrmann, Angew. Chem.,Int. Ed. 2002, 41, 1290.<br />

(2) A. J. Arduengo, ,III, H. V. R. Dias, J. C. Calabrese, F. Davidson, Organometallics. 1993, 12, 3405.<br />

(3) (a) L.-B. Han, R. Hua , M. Tanaka, Angew. Chem., Int. Ed. 1998, 37, 94; (b) A. Jr. Allen, L. Ma, W. Lin,<br />

Tetrahedron Lett.2002, 43, 3707.<br />

(4) L.-B. Han, C. Zhang, H. Yazawa, S. Shimada, J. Am. Chem. Soc. 2004, 126, 5080.<br />

(5) L.-B. Han, C.-Q. Zhao, M. Tanaka, J. Org. Chem. 2001, 66, 5929.<br />

(6) K. Takaki, M. Takeda, G. Koshoji, T. Shishido, K. Takehira, Tetrahedron Lett. 2001, 42, 6357.<br />

(7) M. Y. Niu, H. Fu, Y. Y. Jiang, Y. F. Zhao, Chem. Commun. 2007, 3, 272.<br />

CuCl<br />

R 1<br />

P<br />

O<br />

R 2<br />

R 3


Symposium 3<br />

Structure and Reactivity of Inorganic<br />

Phosphorus Compounds


KL-11<br />

BIOLOGICALLY RELEVANT PHOSPHORANES: STRUCTURAL<br />

CHARACTERIZATION OF GLUCOFURANOSE AND XYLOFURANOSE<br />

PHOSPHORANES AS APPLIED TO PHOSPHORYL TRANSFER ENZYMES<br />

Robert Holmes* A. Chandrasekaran, and Natalya V. Timosheva<br />

Department of Chemistry, University of Massacusetts, USA Email: rrh@chem.umass.edu<br />

Factors Influencing Donor Coordination Leading to Hypervalency<br />

The coordination tendencies of phosphorus to form a hexacoordinated state from a<br />

pentacoordinated state, which might assist in describing the mechanistic action of phosphoryl<br />

transfer enzymes, are delineated. The factors discussed include substrate and transition or<br />

intermediate state anionicity, hydrogen bonding, packing effects, that is, van der Waals forces, the<br />

ease of formation of hexacoordinate phosphorus from lower coordinate states, and the<br />

pseudorotation problem common to nonrigid pentacoordinate phosphorus. In view of the work<br />

reported here and recent work on enzyme promiscuity and moonlighting activities, it is suggested<br />

that donor action should play a role in determining active site interactions in phosphoryl transfer<br />

enzyme mechanisms.<br />

Ease of Formation of the Hexacoordinate State<br />

Biochemists studying phosphoryl transfer enzymes outline mechanisms of nucleophilic attack at<br />

phosphorus that take place by way of proposed trigonal bipyramidal intermediates or transition<br />

states. However, recent work has shown the ready availability of higher coordinate forms of<br />

phosphorus, particularly the ease of formation of hexacoordinate phosphorus. Recently we reported<br />

the unprecedented ease of conversion of tricoordinate to hexacoordinate phosphorus with typical<br />

donor atoms found at the active sites of enzymatic reactions. In solution, the existence of these two<br />

disparate geometries are found in equilibrium with one another.<br />

Biochemical Implications<br />

In the area of promiscuous phosphoryl transfer enzymes, the present work provides a mechanism<br />

for such enzymes to conduct different reactions at the same active site. For example, the active site<br />

of chymotrypsin is able to catalyze both amidase and phophotriesterase reactions. Our recent<br />

publications established the X-ray structure of several biorelevant phosphoranes. Included are the<br />

structures that were established of one xylofuranose based phosphorane 1 and one thymidine based<br />

phosphorane 2.<br />

O O<br />

O<br />

P<br />

F<br />

O<br />

(1A)<br />

O<br />

O<br />

O<br />

159<br />

Solution<br />

Solid<br />

O O<br />

O<br />

O<br />

P O<br />

F<br />

(1B)<br />

O<br />

O


O<br />

O<br />

O<br />

P<br />

F<br />

O<br />

O<br />

H<br />

N O<br />

O N<br />

Solution<br />

Solid<br />

160<br />

F<br />

O<br />

O P<br />

O<br />

(2A) (2B)<br />

O<br />

O N<br />

O N<br />

H<br />

O<br />

In solution, the bicyclic phosphorane 1 showed dynamic equilibrium between two isomeric forms<br />

while phosphorane 2 showed a static conversion between two isomers, one in solid state and the<br />

other in solution state. In addition, bicyclic phosphorane 3 exists in equilibrium between<br />

pentacoordinated and hexacoordinated isomeric forms.<br />

O<br />

OCH2CF3 O<br />

S O P O<br />

O<br />

3<br />

The rapid exchange process between these two geometries reorients the nucleotidyl or<br />

carbohydrate component of the trigonal bipyramidal phosphorane. At an active site, this type of<br />

pseudorotational behavior provides a mechanism that could bring another active site residue into<br />

play and account for a means for phosphoryl transfer enzymes to express promiscuous behavior.<br />

Pseudorotation, a well-founded process in non-enzymatic phosphorus chemistry may have an<br />

application in the future of phosphoryl transfer enzyme chemistry.<br />

Pertinent References<br />

1. N. V. Timosheva, A. Chandrasekaran, and R. R. Holmes, ” Biologically Relevant Phosphoranes: Synthesis and<br />

Structural Characterization of Glucofuranose Derived Phosphoranes with Penta and Hexacoordination at Phosphorus, ”<br />

Inorg. Chem., 46, 0000-0000 (2007).<br />

2. N. V. Timosheva, A. Chandrasekaran, and R. R. Holmes, “Biologically Relevant Phosphoranes: Structural<br />

Characterization of Glucofuranose and Xylofuranose Based Phosphoranes,” Inorg. Chem., 45, 3113-3123 (2006).<br />

3. N. V. Timosheva, A. Chandrasekaran, and R. R. Holmes, “Biologically Relevant Phosphoranes: Structural<br />

Characterization of a Nucleotidyl Phosphorane,” J. Am. Chem. Soc., 127(36), 12474-12475 (2005).<br />

4. R. R. Holmes “Phosphoryl Transfer Enzymes and Hypervalent Phosphorus Chemistry,” Acc. Chem. Res., 37,<br />

746-753 (2004).<br />

5. N. V. Timosheva, A. Chandrasekaran, R. O. Day, and R. R. Holmes, “Conversion of Tricoordinate to Hexacoordinate<br />

Phosphorus. Formation of a Phosphorane-Phosphatrane System,” J. Am. Chem. Soc., 124, 7035-7040 (2002).<br />

HO<br />

O<br />

O<br />

O<br />

O


KL-19<br />

STUDIES ON STABLE 1,3-DIPHOSPHACYCLOBUTANE-2,4-DIYLS<br />

Masaaki Yoshifuji,a Anthony J. Arduengo, III a and Shigekazu Itob<br />

a Department of Chemistry, The University of Alabama, Tuscaloosa, AL 35487, USA<br />

b Department of Chemistry, Graduate School of Science, Tohoku University,Aoba, Sendai 980-8578, Japan<br />

A sterically protected phosphaalkyne 1 reacted with 0.5 eq of t-butyllithium to give a<br />

4-membered ring phosphide anion, 3, via intermediate 2. When 3 was quenched with methanol as<br />

a proton source [1], 1,4-diphosphacyclobutene 4 [2] was obtained and the structure was analyzed by<br />

X-ray crystallography. Oxidation of 3 with 0.5 eq of iodine resulted in the formation of a neutral<br />

radical 5 (pink). Radical 5 was a stable crystalline compound and its structure was analyzed by<br />

X-ray diffraction and EPR spectroscopy [3].<br />

Mes* C P<br />

1<br />

tBuLi<br />

Mes*= 2,4,6-tBu 3C 6H 2<br />

Mes* C P tBu<br />

1<br />

Mes*<br />

tBu<br />

P<br />

Mes*<br />

2<br />

P<br />

3<br />

Mes*<br />

H<br />

tBu<br />

P<br />

Mes*<br />

P<br />

4<br />

MeOH<br />

161<br />

tBu<br />

P<br />

Mes* Mes*<br />

P<br />

5<br />

MeI<br />

tBu<br />

tBu<br />

Mes*<br />

P<br />

P<br />

Mes*<br />

(4-BrC 6H4) 3N<br />

Mes*<br />

P<br />

P<br />

Mes*<br />

Me 7<br />

Me 6<br />

+• – •SbCl6 When the phosphide 3 was quenched with methyl iodide, a stable biradical species<br />

X<br />

6 (dark blue) was obtained [4]. The structure of 6 was determined by X-ray analysis<br />

P<br />

indicating that two Mes* groups protect efficiently two carbon radical centers.<br />

P<br />

Compound 6, 1,2-diphosphacyclobutane-2,4-diyl, is a member of a new class of<br />

Y<br />

8<br />

stable biradicals, on which Niecke [5] and Bertrand [6] have recently reported.<br />

Changing the identities of the nucleophile (from t-BuLi) and the electrophile (from MeI), various<br />

derivatized biradicals 8 (X, Y= Me, Et, PhCH2, n-Bu, t-Bu, n-C18H37, n-C3F7, PhC(O), and i-Pr2N)<br />

were formed [7,8,9]. Several of these biradicals were characterized by X-ray crystallography.<br />

NMR, UV, and CV data for 8 will also be discussed. Furthermore, 6 reacted with<br />

tris(4-bromophenyl)ammoniumyl hexachloroantimonate as an oxidant to give the corresponding<br />

cation radical 7 [10] and the structure was determined by analysis of its EPR spectrum.<br />

References<br />

[1]A. M. Arif, A. R. Barron, A. H. Cowley, S. W. Hall, J. Chem. Soc., Chem. Commun. 1988, 171.<br />

[2]S. Ito, H. Sugiyama, M. Yoshifuji, Chem. Commun. 2002, 1744. [3]S. Ito, M. Kikuchi, M. Yoshifuji, A. J. Arduengo,<br />

III, T. A. Konovalova,, L. D. Kispert, Angew. Chem. Int. Ed. 2006, 45, 4341. [4]H. Sugiyama, S. Ito, M. Yoshifuji,<br />

Angew. Chem. Int. Ed. 2003, 42, 3802. [5]E. Niecke, A. Fuchs, F. Baumeister, M. Nieger, W. W. Schoeller, Angew.<br />

Chem., Int. Ed. Engl. 1995, 34, 555.[6]D. Scheschkewitz, H. Amii, G. Gornitzka, W. W. Schoeller, D. Bourissou, G.<br />

Bertrand, Science 2002, 295, 1880.[7]H. Sugiyama, S. Ito, M. Yoshifuji, Chem. Eur. J. 2004, 10, 2700.[8]M. Yoshifuji,<br />

H. Sugiyama, S. Ito, J. Organomet. Chem. 2005, 690, 2515.[9]S. Ito, M. Kikuchi, H. Sugiyama, M. Yoshifuji, J.<br />

Organomet. Chem. in press, DOI: 10.1016/j.jorganchem.2006.10.066.[10]M. Yoshifuji, A. J. Arduengo, III, T. A.<br />

Konovalova, L. D. Kispert, M. Kikuchi, S. Ito, Chem. Lett. 2006, 45, 4341.<br />

I 2<br />

Mes* Mes*


IL-31<br />

ORGANOPHOSPHORUS Pi-CONJUGATED MATERIALS FOR<br />

OPTOELECTRONIC APPLICATIONS<br />

Muriel Hissler, Christophe Lescop, Régis Réau*<br />

Phosphore et Matériaux Moléculaires, Université de Rennes 1, UMR CNRS 6226,<br />

Campus de Beaulieu, F-35042, Rennes, France Email: regis.reau@univ-rennes1.fr<br />

Organophosphorus building blocks have been rarely used for the tailoring of π-conjugated<br />

systems. 1 In our group, we have exploited the unique properties of the phosphole ring (low aromatic<br />

character, σ,π-conjugation) to develop a novel family of π-conjugated oligomers and polymers. Of<br />

particular interest, the P-atom of phospholes exhibits a versatile reactivity allowing direct access to<br />

a range of new -conjugated systems including transition metal complexes. 2,3 These chemical<br />

modifications of the P-atom offer a way to diversify their electronic and optical properties and are<br />

key issues for the optimization of phosphole-based materials toward optoelectronic applications. For<br />

example, access to organophosphorus-containing OLED materials will be presented. 4 The synthesis<br />

of the first phosphole-modified polythiophene will be reported. 5 Due to the presence of reactive<br />

P-atom, this conjugated polymers (CPs) can sense chalcogenides, an unprecedented property for<br />

CPs. Lastly, using the ability of phospholes to coordinate metal centers, 3 we have design<br />

Cu(I)-dimmers which are molecular clips for the synthesis of nano-scale supramolecular assemblies<br />

having a [2.2]-paracyclophane topology. [6] The scope of this method to control the organisation of<br />

classic π-conjugated systems in the solid state will be presented.<br />

References<br />

[1] T. Baumgartner, R. Réau, Chem. Rev. 2006, 106, 4681..<br />

[2] J. Casado, R. Réau, J. T. López Navarrete, Chem. Eur. J., 2006, 12, 3759<br />

[3] F. Leca, C. Lescop, E. Rodriguez, K. Costuas, J.-F. Halet, R. Réau Angew. Chem. Int. Ed., 2005, 44, 2190.<br />

[4] H.-C. Su, O. Fadhel, C.-J. Yang, T.-Y. Cho, C. Fave, M. Hissler, C.-C. Wu, R. Réau J. Am. Chem. Soc., 2006, 128,<br />

983.<br />

[5] M. Sebastian, M. Hissler, C. Fave, J. Rault- Berthelot, C. Odin, R. Réau, Angew. Chem. Int. Ed., 2006, 45, 6152.<br />

[6] B. Nohra, S. Graule, C. Lescop, R. Réau, J. Am. Chem. Soc., 2006, 128, 3520.<br />

162


IL-32<br />

RECENT ADVANCES IN THE CHEMISTRY OF P,N-HETEROCYCLES<br />

Streubel*, R., Özbolat, A., Helten, H., Perez, J. M., and Nieger M.<br />

Institut für Anorganische Chemie, Gerhard-Domagk-Str. 1, D-53121 Bonn;<br />

E-mail: r.streubel@uni-bonn.de<br />

Gaining mild access to small- and medium-sized heterocycles and to use them as starting<br />

materials for new and selective transformations are current synthetic challenges in phosphorus<br />

chemistry. 2H-Azaphosphirene complexes might serve as a good case-in-point, e.g., we have shown<br />

that they are well suited for thermal, photochemical and even catalytical reactions. [1] Here we report<br />

on the use of 2H-azaphosphirene complexes I in the synthesis of 1,3,2-oxaza-phosphole-3-ene<br />

II, [2] 1,3,4-oxazaphosphol-2-ene II, [3] 1,3,5-oxaza-phosphole-4-ene IV, [4] 1,2H-azaphosphole-5-ene<br />

V, [5] 2H-1,4,2-diazaphosphole complexes VI [6] and 3H-1,3-azaphosphole complexes VII [7]<br />

(Scheme). A new access to I will be reported, too. [8]<br />

(OC) 5W<br />

(OC) 5W<br />

R<br />

R<br />

R<br />

R<br />

R<br />

R 1<br />

P<br />

O N<br />

R<br />

I-VII: R 1 = CH(SiMe 3) 2<br />

I, IV, VI, VII: R 2 = Ph, NMe 2<br />

I-VII: R = alkyl, aryl<br />

R<br />

P<br />

R 1<br />

N<br />

R<br />

II<br />

(OC) 5W<br />

R<br />

R<br />

(OC) 5W R 1<br />

R 2<br />

(OC) 5W<br />

O<br />

P<br />

P<br />

C N<br />

N<br />

163<br />

R 1<br />

N<br />

R 1<br />

R<br />

I<br />

III<br />

(OC) 5W<br />

P<br />

R<br />

N<br />

2<br />

P<br />

R2 R<br />

V VI VII<br />

R<br />

R 2<br />

(OC) 5W<br />

NMR data, X-ray structures and DFT studies on various reaction courses using model systems<br />

will be presented and discussed.<br />

Reference<br />

[1] Review: R. Streubel, Coord. Chem. Rev. 2002, 227, 175.<br />

[2] a) U. Rohde, F. Ruthe, P. G. Jones, R. Streubel, Angew. Chem. Int. Ed. 1999, 38, 215; b) R. Streubel, P. G. Jones, R.<br />

Streubel, unpublished.<br />

[3] a) H. Wilkens, F. Ruthe, P. G. Jones, R. Streubel, Chem. Eur. J. 1998, 4, 1542; b) N. Hoffmann, R. Streubel, L.<br />

Ricard, N. Hoa Tran Huy, F. Mathey, C. R. Chimie 2004, 7, 927.<br />

[4] a) C. Neumann, A. Prehn Junquera, C. Wismach, P.G. Jones, R. Streubel, Tetrahedron 2003, 59, 6213; b) R.<br />

Streubel, J. M. Perez, M. Nieger, unpublished.<br />

[5] a) N. Hoffmann, P. G. Jones, R. Streubel, Angew. Chem. Int. Ed. 2002, 41, 1226; b) R. Streubel, H. Wilkens, F.<br />

Ruthe, P. G. Jones, Organometallics 2006, 25, 4830.<br />

[6] H. Helten, M. Nieger, G. Schnakenburg, R. Streubel, submitted.<br />

[7] H. Helten, R. Streubel, unpublished.<br />

[8] A. Özbolat, G. von Frantzius, M. Nieger, R. Streubel, submitted.<br />

N<br />

N<br />

P<br />

R<br />

R 1<br />

O<br />

R 1<br />

R<br />

R<br />

IV


IL-50<br />

RADIATION-INDUCED SYNTHESIS OF POLYMERS ON THE BASIS OF<br />

ELEMENTAL PHOSPHORUS<br />

N.P. Tarasova<br />

D.Mendeleyev University of Chemical Technology of Russia<br />

Miusskay Sq., 9, Moscow, 125047 Russia, E-mail tarasnp@muctr.edu.ru<br />

The wide use of red phosphorus in different branches of the industry: the defense, the synthesis<br />

of materials for electronics, nonferrous metallurgy, production of the flame retardants for polymeric<br />

materials, organophosphorus synthesis, – specifies the search for the simple and easily controlled<br />

processes of the synthesis of the polymers of element phosphorus with the useful properties.<br />

We have carried out the studies of the radiation-induced synthesis of the polymers based on the<br />

elemental phosphorus. The use of methods of radiation chemistry made it possible to solve a<br />

number of problems, traditional in the synthesis of the red phosphorus:<br />

1. The reduction of the temperature of the beginning of the reaction of the formation of red<br />

phosphorus from the white one and the enlargement of the temperature interval of the process.<br />

2. The variation of the conditions of the initiation of the reaction by the ionizing radiation makes it<br />

possible to govern the composition and the structure of phosphorous-containing polymer;<br />

3. The methods of the synthesis of high molecular mass compounds (bulk polymerization,<br />

polymerization in the solution and emulsion polymerization) being applied to the inorganic<br />

monomer –the white phosphorus, has made it possible to obtain phosphorus-based polymers with<br />

different structures. The basic factors, which control the properties of end product, have been<br />

investigated, depending on the method of the synthesis used. It possible to obtain:<br />

• using the radiation-induced balk polymerization - the analogs of thermal red phosphorus<br />

with the low degree of polymerization, the red phosphorus with the desirable radiation, thermal<br />

and doped defectiveness;<br />

• using the polymerization in solution-phosphorous-containing polymers with the low degree<br />

of polymerization. The polymeric products contain the fragments of the solvents (RO, C6H5, CCl3,<br />

C2H5O, etc.). The reactivity of the synthesized polymers is comparable with that of the white<br />

phosphorus;<br />

• using the polymerization of white phosphorus in the dispersed state (water emulsions)phosphorous-based<br />

polymers in the shell-growth process. It is possible to regulate the size of<br />

polymeric particles, porosity, and reaction ability of the polymer.<br />

The qualitative and quantitative characteristics of the process and of the end products obtained<br />

will be discussed.<br />

164


O-72<br />

INFLUENCE OF MEDIA COMPONENTS ON PROCESSES OF RADIATION-INDUSED<br />

POLYMERIZATION OF WHITE PHOSPHORUS<br />

I.M. Artemkina, A.S. Vilesov, Y.V. Smetannikov, N.P. Tarasova<br />

D. Mendeleyev University of Chemical Technology of Russia, Miusskaya sq. 9, Moscow, 125047, Russia.<br />

E-mail: tarasnp@muctr.edu.ru, vilesov@gmail.com<br />

It is known that inorganic polymers (such as red phosphorus, polymeric forms of arsenic, sulfur,<br />

and their compositions) recently become the objects of intensive both theoretical and applied<br />

investigations, since determination of fundamental characteristics shows the researchers optimal<br />

ways for synthesis of such polymers. It also will be useful for the solution of the general problem<br />

“architecture” of a molecule – structure of inorganic material – their physicochemical properties”.<br />

Nowadays the development of green technologies is one of priority directions both for science and<br />

for the industry. Red phosphorus, being one of the well-known allotropic modifications of<br />

elemental phosphorus, is now being defined as a three-dimensional inorganic polymer with<br />

homo-chains P-P. It is known that the reaction conditions, the properties of the solvent, additives,<br />

etc., may lead to drastic changes in the rate of polymorphic transformation. The evidence exists<br />

confirming the fact that the polymerization of white phosphorus might be initiated by intermediates<br />

of different nature.<br />

The object of our research is the radiation-induced polymerization of white phosphorus in the<br />

presence of ionic liquids (IL) to give red phosphorus. It is a worthy alternative to the conventional<br />

procedure of high-temperature transformation of the white phosphorus to the red one. As we have<br />

shown in our previous studies, the mechanism of the radiation-induced polymerization of white<br />

phosphorus in non-polar solvents (benzene, halohydrocarbons, hexane) is the radical one.<br />

One might expect, by rising the reaction media polarity, to increase the role of the ionic<br />

contribution to the formation of the phosphorus-containing polymers (PCP). IL are the powerful<br />

instrument for the “tuning” of reaction system properties. It was this capacity that we have used for<br />

the intensification of the radiation-induced polymerization process of white phosphorus.<br />

The presence of IL ( 1-ethyl-3-methylimidazolium bis(trifluoromethane-sulfonyl)imide,<br />

1-butyl-3-methylimidazolium trifluoromethanesulfonate, 1-butyl-1-metylpyrro-lidinium<br />

bis(trifluoromethylsulfonyl)imide , 1-butyl-3-methylimidazolium tetrafluoro-borate ,<br />

1-butyl-3-methylimidazolium hexafluorophosphate, 1-hexyl-3-methylimidazolium<br />

tris(penta-fluoroethyl)trifluorophosphate) – compounds with charge separation systems – in the<br />

reaction media (P4–DMSO, P4–benzene–DMSO) led to the full conversion of white phosphorus to<br />

be achieved at absorbed doses of about 20 kGy.<br />

The observed acceleration of the polymerization rate of phosphorus in the presence of ionic<br />

liquids is supposed to be the result of the formation of the intermediate complex [P4-IL]. The NMR<br />

P 31 data confirmed the hypothesis of the complex formation.<br />

Therefore, we were first to show that in the conditions of the radiation-induced polymerization of<br />

white phosphorus in solution formation rate of phosphorus-containing polymers could be increased<br />

by taking control of media polarity.<br />

165


O-73<br />

AN EFFECTIVE METHODOLOGY OF P,N-MACROCYCLES DESIGN<br />

A.A. Karasik a , A.S. Balueva a , R.N. Naumov a , D.V.Kulikov a , Yu.S.Spiridonova a , O.G.Sinyashin a , E. Hey-Hawkins b .<br />

a<br />

A. E. Arbuzov Institute of Organic and Physical Chemistry, Russian Academy of Sciences, Arbuzov str. 8, Kazan,<br />

Russia, 420088. E-mail: oleg@iopc.knc.ru<br />

b<br />

Institut für Anorganische Chemie der Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany. E-mail:<br />

hey@rz.uni-leipzig.de<br />

High effective covalent self-assembly of the macrocyclic polyphosphines has been found in the<br />

course of investigation of Mannich type condensation in the system: phosphine, formaldehyde and<br />

amine if bifunctional reagents (spatially divided diamines 1 or di(arylphosphino)alkanes 2 ) had been<br />

used. A number of 16-, 28-, 36- and 38-membered cyclic aminomethylphosphines and cage<br />

macrocycles with large hydrophobic intramolecular cavities have been obtained.<br />

Ar<br />

P<br />

Ar'<br />

Ar<br />

N<br />

R<br />

P<br />

P<br />

R<br />

N<br />

Ar<br />

Ar'<br />

P<br />

Ar<br />

Ar Ar<br />

P P<br />

or ArPH2 H H<br />

Me<br />

N<br />

Me<br />

P<br />

N<br />

N Me<br />

Ar<br />

P N<br />

Me<br />

Ar<br />

X<br />

R<br />

R<br />

O<br />

O<br />

P<br />

P<br />

N<br />

N<br />

R<br />

N<br />

N<br />

N<br />

N<br />

R<br />

P<br />

P<br />

R<br />

P<br />

P<br />

R<br />

P<br />

P<br />

O<br />

O<br />

166<br />

R<br />

R<br />

Ph<br />

N<br />

Ar<br />

P<br />

P<br />

Ar<br />

N<br />

N<br />

Ph<br />

P<br />

P<br />

Me<br />

N<br />

Me<br />

O<br />

NMe<br />

O<br />

Me<br />

Me<br />

Me<br />

Me<br />

Me<br />

Me<br />

O<br />

NMe<br />

O<br />

N<br />

P<br />

P<br />

Ph<br />

+ CH2O + ArCHRNH 2 or H 2N NH 2 or HRN NRH<br />

So, the formation of covalent macrocycles appears to be a general process and may be considered<br />

as a useful method for a simple one-pot synthesis of macroheterocyclic polyphosphines.<br />

Financial support from Volkswagen Foundation, RFBR (No. 06-03-32754-a), Russian Science<br />

Support Foundation and from President’s of RF Grant for the support of leading scientific schools<br />

(No. 5148.2006.3) is gratefully acknowledged.<br />

Reference<br />

1. A.S. Balueva et al Dalton Trans. 2004, 442;<br />

2. A.A. Karasik et al Heteroat. Chem. 2006, 499;<br />

3. A.A. Karasik et al Z.Anorg Allg.Chem. 2007;<br />

4. R.N. Naumov et al Dalton Trans 2004, 357.<br />

N<br />

N<br />

X<br />

N<br />

P<br />

N<br />

Ar<br />

P<br />

N<br />

Ar<br />

Ph


O-74<br />

THE MECHANISM OF THE REACTION OF ALKALI METAL PHENOXIDES WITH<br />

HEXAHALOCYCLOTRIPHOSPHAZENES<br />

Christopher W. Allen, Michael Calichman and Amy Freund,<br />

Department of Chemistry, University of Vermont, Burlington, VT, 05405, USA<br />

The study of reactions at the phosphorus (V) center in the cyclotriphosphazenes allows for a<br />

fundamental understanding of the factors controlling reactivity in phosphorus chemistry. Previous<br />

kinetic and mechanistic investigations of the nucleophilic substitution reactions of<br />

hexahalocyclotriphosphazenes have almost exclusively been devoted to systems where the<br />

nucleophile is an amine. The phenoxy substituent is one of the most ubiquitous in cyclo- and<br />

polyphosphazene chemistry so in order to gain a more general picture of the factors controlling the<br />

reactivity of the phosphazenes, we have examined the kinetics of the reactions of N3P3X6 (X=F,Cl)<br />

with the alkali phenoxides, MOPh ( M=Li,Na,K). DFT calculations using the SCI-PCB model<br />

show that in terms of enthalpic contributions the associative mechanism is favored. Experimental<br />

kinetic studies were carried out using GC-mass spectrometry and 31 P NMR spectroscopy.<br />

Contrary to conventional wisdom, the rate of the reaction of the fluorophosphazene is much faster<br />

than that of the chlorophosphazene. In the reactions of N3P3Cl6-nFn (n=2, 4) substitution occurs<br />

exclusively at the PF2 centers and the liberated fluoride ion acts as a nucleophile towards the PCl2<br />

center. These observations are consistent with our calculated NBO charges at the relative<br />

phosphorus centers. The variations of the rate of reaction with temperature, solvent and alkali<br />

metal cation have been determined. The activation parameters for the chlorophosphazene system<br />

show positive enthalpy and entropy of activation. This is in contrast to systems involving amines<br />

as nucleophiles where negative entropies of activation have been determined. The reaction rates<br />

of the chlorophosphazene increase with solvent basicity. The rates of reaction for the heavier<br />

alkali metal cations are greater than those for the lighter cations. This trend is the reverse of the<br />

trend in the metal salt lattice energies thus formation of the alkali metal salt is not part of the rate<br />

determining step. The addition of crown ethers results in a significant rate increase. Consideration<br />

of all of these data suggest a mechanism where the rate has a major contribution from a<br />

preequilibrium wherein the metal phenoxide cluster dissociates into the kinetically active species<br />

which adds, in the rate determining step, to the Phosphorus (V) center i.e. the transition state is<br />

before the intermediate. This is in contrast to the amine systems wherein the rate determining<br />

step is the formation of the hydrohalide and thus the transition state occurs after the intermediate.<br />

167


O-75<br />

STRAINED P2C AND P2C2 CYCLIC CATIONS FROM PHOSPHAALKENES<br />

Derek P. Gates<br />

Department of Chemistry, University of British Columbia, Vancouver, British Columbia, CANADA, V6T 1Z1<br />

dgates@chem.ubc.ca<br />

Highly strained phosphorus heterocycles are attractive synthetic targets due to their novel<br />

structures, bonding, and their utility as building blocks in organophosphorus chemistry. 1<br />

Moreover, phosphorus heterocycles often have no isolable counterparts in nitrogen chemistry, and<br />

consequently, they provide unique insight into the striking differences between the chemistry of the<br />

first and second periods. A dramatic illustration of this difference is provided by the pioneering<br />

investigations of the (P2CR5) + cation which is isolated as the symmetric diphosphiranium (A) rather<br />

than the open-chain form (B). 2 In contrast, (N2CR5) + adopts the open chain form B. We have been<br />

interested in the elusive asymmetric diphosphiranium (C) which is formally a valence isomer of the<br />

acyclic 3-phosphino-1-phosphenium ion (D).<br />

P<br />

C<br />

P<br />

+<br />

P P<br />

C<br />

+<br />

168<br />

P<br />

C<br />

P<br />

+<br />

P P<br />

C<br />

A B C D<br />

An asymmetric diphosphiranium cation has previously been detected spectroscopically in<br />

solution. 3,4 In this presentation, a simple route to isolable diphosphiranium cations of type C will<br />

be disclosed. 5 In particular, treating phosphaalkene 1 with HOTf (0.5 equiv) affords asymmetric<br />

diphosphiranium 2[OTf] which can be isolated and characterized by X-ray crystallography.<br />

Surprisingly, the analogous reaction of 1 with MeOTf (0.5 equiv) affords 1,3-diphosphetanium<br />

3[OTf] where the methyl group from MeOTf is found at phosphorus rather than carbon. The<br />

detection of intermediates in these reactions and the unusual umpolung-like reactivity for the P=C<br />

bond in 1 will also be discussed. In addition, the generality of these new reactions and the possible<br />

use of these novel rings as precursors to new polymers will also be considered in this presentation.<br />

1<br />

2 3<br />

References<br />

1. Mathey, F., Phosphorus-Carbon Heterocyclic Chemistry: The Rise of a New Domain. Pergamon: Amsterdam,<br />

2001.<br />

2. See: (a) Kato, T.; Gornitzka, H.; Baceiredo, A.; Schoeller, W. W.; Bertrand, G. Science 2000, 289, 754; (b) Kato,<br />

T.; Gornitzka, H.; Baceiredo, A.; Schoeller, W. W.; Bertrand, G. J. Am. Chem. Soc. 2002, 124, 2506.<br />

3. Loss, S.; Widauer, C.; Rüegger, H.; Fleischer, U.; Marchand, C. M.; Grützmacher, H.; Frenking, G. Dalton Trans.<br />

2003, 85.<br />

4. Tsang, C.-W.; Rohrick, C. A.; Saini, T. S.; Patrick, B. O.; Gates, D. P. Organometallics 2004, 23, 5913.<br />

5. Bates, J. I.; Gates, D. P. J. Am. Chem. Soc. 2006, In Press.<br />

+


O-76<br />

NEW REAGENTS FOR HALOGENATION OF PHOSPHORUS<br />

Rikard Wärme and Lars Juhlin<br />

Swedish Defence Research Agency NBC defence<br />

Cementvägen 20, 901 82 UMEÅ, SWEDEN. e-mail: rikard.warme@foi.se<br />

Syntheses of phosphorus halides are of interest in many genres of organic chemistry but the<br />

development of new methods and reagents for their synthesis have been scarcely explored. Working<br />

in small scale put extra demands on reactions as well as purification procedures to ensure that losses<br />

can be kept at a minimum. New reagents for these reactions which have properties like fast and<br />

clean reactions on micro scale with minimum work up procedures will be presented.<br />

The versatility of the reagents is further explored by the synthesis and use of solid supported<br />

reagents. The reagents are mild and compatible with many functional groups and selective towards<br />

phosphorus which enables the reactions to be used in a variety of systems. Clean reactions and easy<br />

work-up procedures ensures excellent yields which, only with a few exceptions, are quantitative.<br />

These reagents have proven suitable for micro scale synthesis especially in the solid phase<br />

application.<br />

169


O-79<br />

BIMETALLIC ACTIVATION OF WHITE PHOSPHORUS<br />

Dmitry Yakhvarov, a Maurizio Peruzzini, b Maria Caporali, b Pierluigi Barbaro, b Luca Gonsalvi, b Stefano Midollini, b<br />

Annabella Orlandini, b Fabrizio Zanobini, b Yulia Ganushevich a and Oleg Sinyashin a<br />

a<br />

A.E. Arbuzov Institute of Organic and Physical Chemistry, 420088 Kazan (Russia)<br />

b<br />

ICCOM CNR, 50019 Sesto Fiorentino (Italy)<br />

e-mail: yakhvar@iopc.knc.ru<br />

The reactivity of white phosphorus with transition metals is characterized by a vast diversity of<br />

bonding conditions and structural motifs resulting in a variety of Px units ranging from single<br />

phosphido atoms to high nuclearity polyphosphorus ligands. 1 When the tetraphosphorus array is<br />

preserved, different topologies are observed containing either the intact P4 molecule, behaving as a<br />

monohapto 2 or dihapto ligand, 3 or activated by opening one or more edges, generating acyclic P4<br />

chains. 1 These find their thermodynamic sinks by either bridging two metal moieties 4 or undergoing<br />

electrophilic or nucleophilic attacks by ancillary ligands to form new P-H, P-C and P-P bonds, 5 as<br />

for the unique cobalt complex [Co(Ph2PCH2PPh2PPPPPh2PCH2PPh2)]BF4 prepared more than two<br />

decades ago. 6 The mechanism of formation of the Co(I)-coordinated 1,2-disubstituted<br />

tetraphosphabutadiene zig-zag P6 chain has not been clearly understood as yet. Herein we describe<br />

the syntheses, characterizations and reactivity of new rhodium and iridium species related to this<br />

intriguing activation process and highlight the occurrence of an unexpected bimetallic P4 activation<br />

pathway to mediate the whole reaction. 7<br />

2<br />

P P<br />

M<br />

P P<br />

M = Rh, Ir<br />

+<br />

P<br />

P<br />

P<br />

P<br />

CH2Cl2 - 40 °C<br />

P<br />

P<br />

P<br />

M<br />

P<br />

P<br />

P<br />

P<br />

P<br />

P<br />

M<br />

P<br />

P<br />

P<br />

170<br />

2+<br />

- [M(dppm) 2] +<br />

Acknowledgements DY thanks INTAS (YS Fellowship Program Ref.Nr 03-55-2050) for<br />

financial support of this research and for funding his stay in Florence, Italy. Financial support from<br />

the Research and Educational Center of the Kazan State University - REC 007 (Y1-C-07-06) and<br />

Russian Foundation for Basic Research (RFBR 06-03-32247-a) is also gratefully<br />

Reference<br />

[1] M. Peruzzini, L. Gonsalvi, A. Romerosa, Chem. Soc. Rev. 2005, 34, 1038.<br />

[2] M. Di Vaira, S. Seniori Costantini, P. Stoppioni, P. Frediani, M. Peruzzini, Dalton Trans., 2005, 2234 and refs therein<br />

[3] M. Di Vaira, S. Seniori Costantini, P. Stoppioni, P. Frediani, M. Peruzzini, Acta Cryst. 2005, A61, C303-P.07.01.37.<br />

Book of abstracts, XX th IUCR Congress, Florence, Italy, 2005<br />

[4] Y. Peng, H. Fan, H. Zhu, H. Roesky, J. Magull, C. Hughes, Angew. Chem., Int. Ed. Engl., 2004, 43, 3443 and refs<br />

therein.<br />

[5] A.R. Fox, R.J. Wright, E. Rivard, P.P. Power, Angew. Chem., Int. Ed. Engl., 2005, 44, 7729 and refs therein.<br />

[6] F. Cecconi, C.A. Ghilardi, S. Midollini, A. Orlandini, J. Am. Chem. Soc. 1984, 106, 3667.<br />

[7] D. Yakhvarov, P. Barbaro, L. Gonsalvi, S. Mañas, S. Midollini, A. Orlandini, M. Peruzzini, O. Sinyashin, F.<br />

Zanobini, Angew. Chem., Int. Ed. Engl., 2006, 45, 4182<br />

RT


O-80<br />

ENVIRONMENTALLY BEING CHEMICAL CONVERSION OF CO2 INTO ORGANIC<br />

CARBONATES CATALYZED BY PHOSPHINIUM SALTS<br />

J.S.Tian, C.X.Miao, J.Q.Wang, F.Cai, Y.Du, Y.Zhao, L.N.He*<br />

State Key Lab of Elemento-organic Chemistry, Nankai University, Tianjin, 300071, P. R. China<br />

Dimethyl carbonate (DMC), one of useful organic carbonates, has been drawing much attention<br />

as a safe, noncorrosive, and environmentally friendly building block for the production of<br />

polycarbonate and other chemicals. Also, DMC is of interest as an additive to fuel oil owing to the<br />

high octane number, reducing particulate emission from diesel engines. Therefore, development of<br />

DMC production technology and fuel properties has become important for oil and chemical<br />

industry. A considerable effort has been devoted to the non-phosgene accesses to DMC. In this<br />

context, the two-step transesterification process is very attractive in view of the so-called<br />

“Sustainable Society’’ and ‘‘Green Chemistry’’.<br />

Cat.I: BrBu3PPEG6000PBu3Br; Cat. Ⅱ: K2CO3/ PEG6000; Cat.: K2CO3/<br />

BrBu3PPEG6000PBu3Br<br />

Simple process for DMC synthesis from CO2, epoxide and MeOH<br />

The cycloaddition of propylene oxide and CO2 to form propylene carbonate promoted by<br />

phosphonium salt convalently bound to polyethylene glycol (PEG), and the transesterification of<br />

propylene carbonate with methanol to DMC mediated by PEG-supported K2CO3, were separately<br />

investigated. Single supported catalyst (K2CO3/BrBu3PPEG6000PBu3Br) was shown to be active for<br />

DMC synthesis from propylene oxide, CO2 and methanol under mild reaction conditions, even<br />

under low CO2 pressure (2 bar). The effects of various reaction variables on the activity and<br />

selectivity performance were discussed in details. The catalyst was readily separated and reused<br />

without catalyst leaching detected by 31 P NMR. Notably, excellent yield of DMC and complete<br />

conversion of propylene carbonate were reached under optimized reaction conditions. This<br />

procedure was also successfully applied to the synthesis of other dialkyl carbonates, and eliminates<br />

the requirement for toxic and wasteful feedstocks such as phosgene and carbon monoxide.<br />

References<br />

[1] a) M. A. Pacheco, C. L. Marshall, Energy Fuels,1991, 11, 2; b) P. Tundo, Pure Appl. Chem., 2001, 73,1117; c) S.<br />

Fujita,B.M. Bhanage, Y.Ikushima, M.Arai, Green Chem., 2001, 3, 87.<br />

[2] a) J. C. Choi, L. N. He, H. Yasuda, T. Sakakura, Green Chem., 2002, 4, 230; b) J. S. Tian, J. Q. Wang,J. Y. Chen, J.<br />

G. Fan,F. Cai, L. N. He,Appl. Catal. A: Gen., 2006, 301(2), 215; c) J. Q. Wang, X. D.Yue, F. Cai, L. N. He, Catal.<br />

Commun.,2007, 8, 167; d) J. Q. Wang, D. L. Kong, J.Y. Chen, F. Cai, L. N.He, J. Mol. Catal. A: Chem., 2006, 249,<br />

143; e) Y. Du, J.-Q.Wang, J.-Y. Chen, F. Cai, J.-S. Tian, D.-L.Kong, L.-N. He,Tetrahedron Lett., 2006, 47(8), 1271;<br />

f) Y. Du, F. Cai, D. L. Kong,L. N. He, Green Chem., 2005, 7, 518.<br />

171


O-81<br />

TRANSITION METAL COMPLEXES CONTAINING PHOSPHENIUM AND PHOSPHITE<br />

LIGANDS: FORMATION AND THEORETICAL APPROACH<br />

Hiroshi Nakazawa, * Katsuhiko Miyoshi, # and Keiko Takano §<br />

*Department of Chemistry, Graduate School of Science, Osaka City University, Osaka, Japan, # Department of<br />

Chemistry, Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Japan, and § School of Integrated<br />

Science, Graduate School of Humanities and Science, Ochanomizu University, Tokyo, Japan.<br />

Transition metal complexes containing phosphenium have attracted considerable attention<br />

because of double bond character between M and P. Phosphenium is isolobal with a singlet<br />

carbene and silylene, and a phosphenium ligand shows electrophilicity. For a phosphenium<br />

phosphite complex, two structures (nonbridging and bridging forms) are conceivable. This paper<br />

reports formation of phosphenium phosphite complexes, the preferential structure, and its<br />

theoretical approach.<br />

M<br />

N Me<br />

O<br />

N<br />

P N<br />

O<br />

N<br />

C<br />

P<br />

Mo OMe<br />

O C CO<br />

C<br />

O<br />

N Me<br />

N<br />

O<br />

P N<br />

O<br />

N<br />

C P<br />

Mo OMe<br />

O C<br />

OMe<br />

P<br />

C N<br />

O<br />

N<br />

P<br />

P<br />

OR<br />

+<br />

nonbridging form bridging form<br />

phosphenium phosphite complex<br />

TMSOTf<br />

TMSOTf<br />

172<br />

M<br />

P<br />

P<br />

O C<br />

O C<br />

OR<br />

N N<br />

P<br />

Mo<br />

C<br />

O<br />

1a 1b<br />

2a 2b<br />

+<br />

+<br />

N<br />

N<br />

P<br />

OMe<br />

CO<br />

+<br />

N N<br />

O C<br />

O C<br />

P<br />

Mo<br />

C<br />

O<br />

N<br />

N<br />

P<br />

OMe<br />

OMe<br />

P<br />

N N<br />

OTf<br />

Molybdenum carbonyl complexes with phosphites (1a, 2a) react with TMSOTf to give the<br />

corresponding cationic phosphenium phosphite complexes (1b, 2b) by single OMe - abstraction<br />

from the coordinating phosphite (see eqs 1 and 2). The X-ray structure analyses and the NMR<br />

spectra of the products showed that the original configuration around the Mo is retained and a<br />

nonbridging form is adopted. DFT calculations have been incorporated to study the preference of<br />

the nonbridging form for phosphenium phosphite complexes, together with the preference of the<br />

bridging form for the analogous silylene alkoxysilyl complexes, and found that the bridging<br />

requires larger geometrical changes for phosphenium phosphite complexes than for silylene<br />

alkoxysilyl complexes.<br />

OTf<br />

(1)<br />

(2)


O-82<br />

THE FORMATION OF SPHERICAL GIANT MOLECULES AND<br />

DYNAMIC BEHAVIOUR OF SUPRAMOLECULAR ASSEMBLIES BASED<br />

ON PN LIGAND COMPLEXES<br />

Manfred Scheer*, L. J. Gregoriades, R. Merkle, B. P. Johnson and F. Dielmann<br />

Institut für Anorganische Chemie, Universität Regensburg, Regensburg, D-93040, Germany; e-mail:<br />

manfred.scheer@chemie.uni-regensburg.de<br />

In contrast to common approaches in supramolecular chemistry, our research is focused on the<br />

use of Pn-ligand complexes as connecting units for different metal centres to form coordination<br />

polymers as well as soluble spherical giant clusters. It has already been shown that the tetrahedrane<br />

cluster [Cp2Mo2(CO)4(μ,η 2 -P2)] and the sandwich complexes [Cp*Fe(η 5 -P5)] can act in the reaction<br />

with Cu(I) halides as efficient building blocks for the construction of oligomers, 1D and 2D<br />

polymers, as well as fullerene-like aggregates [1]. Recently we found that the cyclo-P4 containing<br />

ligand complex [Cp''Ta(CO)2(η 4 -P4)] can also be used as a starting unit for the formation of<br />

spherical supramolecular aggregates [2] (see below).<br />

In contrast, the reaction of different Pn-ligand complexes with the Ag I salt of the weakly<br />

coordinating anion [Al{OC(CF3)3}4]¯ leads to novel polycationic polymers, which show in solution<br />

extensive dissociation and exhibit dynamic behaviour [3]. The talk will focus on the structure and<br />

properties of the spherical giant molecules as well as on the dynamic behaviour of the polycationic<br />

polymers.<br />

Reference<br />

[1] a) Bai, J.; Virovets A. V.; Scheer, M., Science, 2003, 300, 781-783. b) Scheer, M.; Bai, J.; Johnson, B. P.; Merkle,<br />

R.; Virovets, A. V.; Anson, C. E.; Eur. J. Inorg. Chem. 2005, 4023-4026.<br />

[2] Johnson, B. P.; Dielmann, F.; Balázs, G.; Sierka, M.; Scheer, M.; Angew. Chem. Int. Ed., 2006, 45, 2473-2475.<br />

[3] Scheer, M.; Gregoriades, L. J.; Virovets, A. V.; Kunz, W.; Neueder, R.; Krossing, I.; Angew. Chem. Int. Ed. 2006,<br />

45, 5689-5693.<br />

173


O-84<br />

THE CHEMICAL PROPERTIES OF ALKALI METALS HEPTAPHOSPHIDES<br />

V.А.Miluykov a , O.G.Sinyashin a , А.V.Kataev a , P.Lonnecke b , E.Hey-Hawkins b<br />

а A.E.Arbuzov Institute of organic and physical chemistry russan academie of sciences, Kazan, Russia,<br />

miluykov@iopc.knc.ru<br />

b<br />

Institut für Anorganische Chemie der Universität Leipzig,<br />

Leipzig, Germany hey@rz.uni-leipzig.de<br />

The alkali metals polyphosphides (homopolyatomic phosphorus clusters, Zintl-anions) are<br />

currently in focus of research both as intermediates of elemental phosphorus transformation in<br />

organic phosphorus compounds and as syntons for construction of polynuclear complexes and<br />

clusters.<br />

We have found that heptaphosphid 1 react with alkyltosylates depend on stoichiometry of<br />

reagents with formation of mixture of symmetric and asymmetric isomers of heptaphosphine 2 or<br />

asymmetric sodium dialkylheptaphosphide 3 only.<br />

R<br />

P<br />

P<br />

P P<br />

P<br />

3Na<br />

P<br />

P<br />

P<br />

P<br />

P P<br />

P<br />

P<br />

P + 3RTos<br />

R<br />

R<br />

R<br />

P P<br />

P<br />

asym, sym<br />

P Na<br />

R<br />

P P<br />

P<br />

asym<br />

+ 2RTos<br />

3 1<br />

2<br />

We have also found a new reaction of heptaphosphide 1 with cyclopropenylic complexes of<br />

nickel - formation of sodium 1,2-diphosphacyclopentadienide.<br />

P<br />

P<br />

P P<br />

3Na<br />

P P<br />

P<br />

L = PhMe 2P, none<br />

Ph<br />

+<br />

Ph<br />

Ni<br />

L Br<br />

L<br />

Ph<br />

Ph<br />

Ph<br />

-<br />

P P<br />

Na<br />

Ph<br />

The protonation of 1,2-diphosphacyclopentadienide anion lead to C-H phosphadiene which is<br />

involved in anomaly [2+2] cycloaddition reaction with formation<br />

rac-trans-1,2,6,7-tetraphospha-3,4,5,8,9,10-hexaphenyltricyclo[5.3.0.0 2,6 ]-3,9-decadien withy high<br />

yield.<br />

Ph<br />

Ph<br />

-<br />

P P<br />

Na<br />

Ph<br />

[H + ]<br />

Ph<br />

Ph<br />

P P<br />

Ph<br />

H<br />

174<br />

P P<br />

Ph<br />

Ph<br />

Ph<br />

P P<br />

Ph<br />

H P<br />

P<br />

H<br />

Ph<br />

The authors thank the Deutsche Forschungsgemeinschaft (436RUS 113/760/0-1) and RFBR<br />

(04-03-04102) for financial support of this work.<br />

Ph<br />

Ph<br />

H<br />

Ph<br />

Ph


O-93<br />

SURFACE PROPERTIES AND CATALYTIC ACTIVITY OF SODIUM ZIRCONIUM<br />

PHOSPHATE IN DEHYDRATION OF METHANOL TO DIMETHYL ETHER<br />

M.V. Sukhanov a , M.M. Ermilova b , N.V. Orekhova b , V.I. Pet'kov a , G.F. Tereschenko b<br />

a Nizhni Novgorod State University, Nizhni Novgorod, Russia, 603950<br />

b Topchiev Institute of Petrochemical Synthesis, Moscow, Russia, 119991<br />

The development of competitive, effective, and environmentally safe fuels is among the global<br />

trends of progress in chemistry. Dimethyl ether (DME) has received a worldwide attention as a<br />

clean alternative fuel for diesel engines since it has a thermal efficiency equivalent to the traditional<br />

diesel fuel, lower NOx emission, lesser carbon particulates, near-zero smoke and lesser engine noise.<br />

In addition, DME is used as a raw material for making chemicals. At present, DME is produced on<br />

the commercial scale by dehydration methanol on mechanical mixtures of aluminum, silicon, and<br />

boron oxides or on molecular sieves. It is still a topical task to develop new catalyst for this process,<br />

which should be more active, selective, and less subject to coking.<br />

Zirconium-containing phosphates with a structure of the sodium zirconium phosphate<br />

(NaZr2(PO4)3, NZP) are of interest as catalysts for dehydration of alcohols because of the high<br />

stability of their structural skeleton, which ensures their resistance to action of water at high<br />

temperature and enables regeneration of a catalyst at elevated temperatures without any changes in<br />

its phase composition. The presence work has been examined the surface area, and surface acid<br />

properties of sodium zirconium phosphate and their influence on methanol dehydration to DME.<br />

Influence of the temperature synthesis of catalyst on methanol dehydration was also studied.<br />

The samples of sodium zirconium phosphates were prepared by the precipitating method starting<br />

from the following reagents: NaNO3, ZrOCl2·8H2O and H3PO4. Precipitates were dried at 353 and<br />

473 K and thermally treated from 873, 1073 and 1273 K during at 24 h without intermediate<br />

regrinding. Phosphate samples were characterized using X-ray powder diffraction, infrared<br />

spectroscopy and microprobe analysis. The BET specific surface areas of the samples were<br />

determined. The acid properties were measured by TPD of NH3. Dependence of specific surface<br />

area and acid properties of sodium zirconium phosphate from temperature treated of sample was<br />

founded.<br />

The conversion of methanol was studied in a convenient Ar-flow system, operated at atmospheric<br />

pressure, in the temperature range from 450 to 750 K. The products of alcohols conversions were<br />

analyzed by gas chromatography. The sample of sodium zirconium phosphates, which thermally<br />

treated from 873 K, was shown the highest specific surface area, acid properties, and catalytic<br />

activity in dehydration of methanol. The alcohol conversion on this sample approaches the<br />

equilibrium value 88-90 % at the 600 K. Dependence of methanol conversion from reactor<br />

temperature (from 450 to 750 K range) and from of flow rate of the alcohol vapor at a reactor (from<br />

0.2 to 1.3 ml·min-1) were founded. It was shown that the sodium zirconium phosphate maybe<br />

compare well with known commercial catalysts for methanol dehydration [1, 2].<br />

The work is supported by the Russian Foundation for Basic Research (Project № 06-03-08064).<br />

References:<br />

[1] V. Vishwanathan, Hyun-Seog Roh, Jae-Woo Kim, and Ki-Won Jun, Catal. Lett. 2004. V. 96. P. 23-28.<br />

[2] F. Yaripour, F. Baghaei, I. Schmidt, J. Perregaard, Catal. Com. 2005. V. 6. P. 147-152.<br />

175


P-10<br />

DESIGNING NEW METALLO-ORGANIC CATALYSTS FOR THE ASYMMETRIC<br />

PHOSPHO-ALDOL REACTION<br />

Alexandra C. Gledhill, Tracy D. Nixon, Terence P. Kee<br />

School of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, UK<br />

Email: chm1acg@leeds.ac.uk<br />

The enantioselective hydrophosphonylation of carbonyls is a highly valuable phospho-transfer<br />

reaction for the synthesis of α-functionalised phosphonate esters which have a large number of<br />

applications in bioorganic science including anti-viral agents, anti-biotics, anti-tumour activity,<br />

transition state models, nucleotide technology and biophosphate mimics. For each of these<br />

applications, the stereochemistry of the phosphonate is crucial to elicit the required properties.<br />

Through the manipulation of catalysts it is possible to control asymmetry and enantioselectivity of<br />

this reaction.<br />

O<br />

RO<br />

P<br />

H<br />

RO<br />

H<br />

O<br />

RO<br />

RO<br />

P<br />

CAT CAT<br />

O<br />

R' H<br />

176<br />

O<br />

RO<br />

P<br />

RO<br />

Here we describe how, through exploration into the synthesis and characterisation of aluminium<br />

complexes based upon the (R,R)-salcyan framework and by applying such complexes as catalyst<br />

precursors for the homogeneous phospho-aldol reaction, increased stereocontrol can be achieved<br />

with {(R,R)-[salcyan( t Bu)2]Al(μ-OH)}2 affording products with e.e. ≤ 62% and preliminary tests<br />

showing that ligands adding extra steric bulk and offering a greater degree of alkyl branching.<br />

Molecular modelling has been carried out using Hyperchem 7.0 (Hypercube, Florida) at the<br />

semi-empirical PM3 level the results of which have enabled us to identify a number of complexes<br />

as potential catalysts for the phospho-aldol reaction which are to be synthesised and tested for their<br />

catalytic ability.<br />

Scheme 1: The currently accepted mechanistic overview of the phospho-aldol reaction for the<br />

synthesis of α-functionalised phosphonate esters.<br />

H H<br />

N<br />

Al<br />

N<br />

O O<br />

OH<br />

R'<br />

O<br />

H<br />

RO<br />

RO<br />

O<br />

P<br />

R'<br />

OH


P-15<br />

ELECTROSYNTHESIS OF METAL PHOSPHIDES ON THE BASIS OF<br />

WHITE PHOSPHORUS<br />

Budnikova Yu.H. * , Krasnov S.A., Gryaznova T.V., Tazeev D.I., Sinyashin O.G.<br />

Institute of Organic and Physical Chemistry of Russian Academy of Sciences, Kazan, Russia,<br />

e-mail: yulia@iopc.knc.ru<br />

Reduction of white phosphorus in the coordination sphere of the electrochemically generated<br />

metal(0) complexes with σ-donor ligands was shown to be possible and accompanied by the<br />

transformation of P4 into the metal phosphides [1].<br />

M n+ L + ne M 0 L L = bipy, solvent, M = Ni, Co, Pd, Rh, Ir...<br />

M 0 L + P 4 product [M-P]<br />

6 Ni0L + P4<br />

6 Ni0PPh3 + P4<br />

+ 2e<br />

Ni(II)L<br />

+ P4<br />

Ni(0)L<br />

Ni(II)(P4)L<br />

2 Ni3P2L L = bipy, phen<br />

DMF<br />

-PPh3<br />

+ P4<br />

Ni3P2L<br />

+ 2e<br />

177<br />

2 Ni3P2(DMF)<br />

S spec. = 200 m2/g<br />

L = bipy<br />

Initially the black colloidal solution of stabilized Ni-clusters was formed. One day later nickel<br />

deposits precipitates. Scanning tunnel microscopy was used for determine the size of the<br />

nanoparticles -~15-20 nm. The surface area of the ultrafine amorphous materials, manufactured in<br />

traditional way, e.g., by the vapor deposition, is usually very small, 0.1-0.01 m 2 /g [12]. It is too<br />

small to use these materials in the industrial catalysis due to low productivity per the catalyst weight.<br />

The ultrafine amorphous alloys, obtained by chemical reduction, has more large surface area –<br />

30-130 m 2 /g and much more effective. We detected that phosphide Ni3P2bipy, prepared from the<br />

electrochemically generated Ni(0)bipy and white phosphorus, has a very large surface area – 200<br />

m 2 /g, i.e. presents the so-called ‘ultrafine material’. Thus, the proposed synthetic procedure allows<br />

to obtain the ‘ultrafine materials’ hard to be proceeded in the regular way, what allows to use these<br />

materials as the basis for the development of new catalysts.<br />

Acknowledgments: RFBR (04-03-32830, 05-03-08039 ofi-p), INTAS.<br />

Reference<br />

[1] Yu.H. Budnikova, D.I. Tazeev, B.A. Trofimov, O.G. Sinyashin. Electrochem. Comm. 6 (2004) 700–702


P-76<br />

NOVEL SYNTHETIC ROUTES TO PHOSPHORUS ORGANIC COMPOUNDS ON THE<br />

BASIS OF THE ELEMENTAL PHOSPHORUS (P4)<br />

O. G. Sinyashin, E. S. Batyeva, E.V. Platova, E.K. Badeeva, L.I. Kursheva<br />

A.E.Arbuzov Inatitute of Organic and Physical Chemistry of Russian Academy of Sciences, Kazan Scientific Center,<br />

Kazan, Arbuzov Str.8, 420088, Russi;a.<br />

Reactions of elemental phosphorus (P4) with proton containing reagents (water, diols, thiols) in<br />

the presence of compounds with bidentate character, which promote the cleavage of the P4<br />

tetrahedron, have been studied. As such kind of compounds we have proposed and used amines,<br />

which form appropriate complexes upon the interaction with organic (ethylene oxide) and inorganic<br />

(sulfur) reagents as well as bidentate complexes of trialkyltrithiophosphites with transition metal<br />

halides.<br />

Reaction of the P4 with water in the presence of tertiary ammonium bases, i.e.,<br />

β-hydroxyethyltrimethylammonium (choline), has been performed. The latter is formed at the<br />

interaction of trimethylamine with ethylene oxide in aqueous medium, and promotes the cleavage of<br />

the P4 tetrahedron. The reaction is accompanied by the elimination of hydrogen (H2) instead of<br />

phosphine, as it is usually performed in the presence of other tertiary amines (triethyl-, tributyl-,<br />

dimethylbenzyl amines). The same result was obtained in the reaction of P4 and trimethylamine,<br />

ethylene oxide and water. This method is proposed as the general approach for the synthesis of<br />

phosphoric acids and their derivatives on the basis of the reaction of elemental phosphorus (P4) with<br />

water in the presence of tertiary ammonium base - β-hydroxyethyltrimethylammonium (choline).<br />

Thus, novel convenient technological method for the preparation of hypophosphiteβ-hydroxyethyltrimethylammonium<br />

(cholinehypophosphite) from white phosphorus, choline and<br />

water, or from white phosphorus, trimethylamine, ethylene oxide and water has been developed.<br />

It has been shown for the first time that interaction of white phosphorus and sulfur with aliphatic<br />

mercaptans in the presence of amines - (diethyl-, triethylamine, piperidine)- results in the new<br />

pathway – the formation of ammonium salts 1,2,3,4-tetrathiol-1,2,3,4-tetrathiontetraphosphetanes.<br />

Reactions of white phosphorus and sulfur with 1,2-ethylene- and 1,3-propylene glycols proceed<br />

analogously in the presence of piperidine. On the contrary the formation of tetrathiophosphates is<br />

observed in reaction of white phosphorus and sulfur with aliphatic mercaptans in the presence of<br />

Cu(I) halide complexes with thiophosphites.<br />

Acknowledgements<br />

The grants of the Russian Foundation for Basic Research (06-03-32180) and Program7 of the DCMS RAS are<br />

gratefully acknowledged.<br />

178


P-99<br />

REACTION OF 2-R-BENZO[D]-1,3,2-OXAZAPHOSPHORIN-6-ONES WITH<br />

HEXAFLUOROACETONE<br />

V.F.Mironov 1,2 , Yu.Yu.Borisova 1 , L.M.Burnaeva 1 , A.T.Gubaidullin 2 , I.A.Litvinov 2 ,<br />

G.A.Ivkova 1 , N.K.Amerkhanova 1 , I.V.Konovalova 1<br />

1 Kazan State University, Kremlevskaya Str. 18, Kazan, 420008 Russia<br />

2 A.E.Arbuzov Institute of Organic and Physical Chemistry, Russian Academy of Sciences,<br />

Arbuzov Str. 8, Kazan, 420088, Russia, e-mail: mironov@iopc.knc.ru<br />

The six-membered cycle of 2-R-benzo[d]- and 2-R-naphtho[2,3-e]-1-3-2-dioxaphosphorin-4-ones<br />

undergoes the cycloexpansion in reaction with activated carbonyl compounds to give<br />

the unsymmetrical functionalized seven-membered heterocycles, namely benzo[d]- and<br />

naphtho[1,2-f]-1,3,2-dioxaphosphepines. These compounds obtained with using of<br />

hexafluoroacetone can be used in further synthesis of the fluorinated ketones, which are not<br />

available for obtaining by the other methods. Here the new results concerning the application of the<br />

reaction of hexafluoroacetone with the cyclic phosphorylated derivatives of phenylantranilic acid<br />

are reported. Benzo[d]-1,3,2-oxaazaphosphorin-6-ones (1,2) were synthesized for the first time by<br />

the reaction of phenylantranilic acid with alkyl- and alkoxydichlorophosphines in the presence of<br />

NEt3. The reaction of compounds (1,2) with hexafluoroacetone was found to yield the new<br />

heterocycles – substituted benzo[d]-1,3,2-oxaazaphosphepines (3,4). Compound (5) was obtained as<br />

a result of hydrolysis of (3,4).<br />

1,2<br />

Ph<br />

N R<br />

P<br />

O<br />

O<br />

O<br />

CF3CCF3<br />

Ph O<br />

N R<br />

P<br />

O<br />

CF3<br />

3,4 O CF3<br />

H2O<br />

5<br />

R = Ph (1,3), OEt (2,4)<br />

179<br />

NH Ph<br />

OH<br />

The reaction includes a nucleophilic attack of phosphorus on carbon with the formation of<br />

P + –C–O – -betaine, P + –C–O – → P + –O–C – -rearrangement and intramolecular attack of the carbon<br />

anionic center on encocyclic carbonyl group.<br />

C<br />

C<br />

C 7<br />

P 2<br />

O 1<br />

C 8<br />

O 2<br />

O 7<br />

C 10<br />

F 1<br />

F 2<br />

F 3<br />

F 4<br />

N 3<br />

C 6a<br />

C 6b<br />

F 5<br />

F 6<br />

C<br />

C<br />

C<br />

C<br />

C 9 C<br />

The structure of (3,4) was confirmed by 1 H, 13 C, 31 P NMR and IR spectroscopy as well as by the<br />

single crystal X-ray diffraction (see figure). The conformation of phosphepine’s heterocycle is a<br />

distorted boat with planar fragment N 3 C 6a C 6b C 7 .<br />

Thus, the proposed synthetic approach including the reaction between the P(III)-cyclic<br />

derivatives of hydroxycarbonic acid, like heterocycles (1,2), and carbonyl compounds is perspective<br />

for the synthesis of phosphepines and fluorinated ketones.<br />

C<br />

C<br />

C 3<br />

C 6<br />

C 4<br />

C 5<br />

C<br />

C<br />

C<br />

O<br />

CF3<br />

CF3


P-117<br />

STUDY ON STRUCTURE AND PROPERTIES OF AMORPHOUS Ni-Cu-P ALLOY<br />

COATINGS PREPARED BY ELECTROLESS PLATING<br />

Xu Ruidong, Wang Junli,Guo Zhongcheng<br />

Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093,<br />

China<br />

The components, phase structure and hardness of Ni-Cu-P alloy coatings prepared by electroless<br />

plating, were studied. The results show that the nickel and phosphorus contents in coating decrease<br />

and copper content increases with increasing CuSO4·5H2O concentration in bath. Owning to the<br />

characteristic of priority of Cu deposition, which makes Cu/Ni mass ratio in coating be higher than<br />

that in bath. X-ray diffraction displays that Ni-Cu-P alloy coating is amorphous state as-deposited<br />

and heat-treated at 300℃, there are some thermodynamics equilibrium phase deposited such as<br />

Ni3P and Cu3P in coating after that heat treatment temperature is higher than 400℃, and it has<br />

turned into crystalline state. The hardness test shows that when heat treatment temperature is lower<br />

than 400℃, the structure of coatings changes and the distortion in the crystal lattice gets serious,<br />

making the Ni-Cu-P alloy coating hardness increase. At 400℃, since a large number of Ni3P phase<br />

appears and precipitation hardening occurs, the coating hardness reaches peak value (845Hv). With<br />

continuously increasing heat treatment temperature, crystalline particles of nickel solid solution<br />

grow and Ni3P particles aggregate and coarsen, and the composite coating softens, making the<br />

coating hardness decrease.<br />

180


P-139<br />

DETERMINATION OF DEXAMETHASONE SODIUM PHOSPHATE IN MEDICAMENT<br />

BY FLUORESCENCE PROBE OF Tb 3+ -TIRON COMPLEX<br />

Chaobiao Huang a, *, Zhenrong Yu b , Libin Zhou a<br />

a College of Chemistry and Life Science ,Zhejiang Normal Univiersity , Jinhua 321004,China<br />

b Deqing No.3 High School,Zhejiang,China<br />

A sensitive method by fluorescence quenching for the determination of dexamethasone sodium<br />

phosphate is proposed.The method is based on the ability of phosphate to inhibit the formation of a<br />

strong fluorescent complex of Tb 3+ with Tiron.The fluorescence intensity trend equilibrium after<br />

20 minutes reaction of dexamethasone sodium phosphate and Tb 3+ -tiron complex. The optimal<br />

conditions for the determination of dexamethasone sodium phosphate are studied,and the<br />

possibilities of spectrofluorimetric measurements of the system are studied under optimal<br />

conditions (pH 7.5 in 0.01 mol/L Tris-HCl bufer).The linear range of the determination is 2.5×10 -<br />

7 -6 -8<br />

~4×10 mol/L and the detection limit is 6.2×10 mol/L, and the RSD of 11 times determination<br />

are 2.2% and 0.8% for 5×10 -7 mol/L and 1×10 -6 mol/L, respectively.The method has been applied<br />

to determine dexamethasone sodium phosphate in dexamethasone sodium phosphate injections.<br />

Keywords: Tb 3+ -tiron complex, fluorescence quenching, dexamethasone sodium phosphate,<br />

medicament<br />

References<br />

1 Editorial Committee of Pharmacopoeia of People’s Republic of China. Pharmacopoeia of People’s Republic of<br />

China(Part II).Beijing:Chemical Industry Press,2005<br />

2 Pang Yinuo,Zhang Yan,Zhang Zhirong,et al. Chin Hosp Pharm J.,2003,23(5):257~260<br />

3 Bi Xueyan,Li Liping,Li Li,Yu Weibing. Pharm J Chin PLA.,2006,22 (3):235~236<br />

4 Yang Yanwei,Zhu Ying,Zhang Weiqiang et al. J Environ Health., 2006, 23 (3):264~266<br />

181


Symposium 4<br />

Nucleotides and Oligonucleotides-From Basic to<br />

Medicinal Applications; Biological Aspects<br />

of Phosphorus Chemistry


KL-14<br />

THE CHEMICAL BIOLOGY OF HISTIDINE TRIAD NUCLEOSIDE<br />

BINDING PROTEINS<br />

Carston R. Wagner<br />

Departments of 1Medicinal Chemistry and 2Chemistry, University of Minnesota, Minneapolis,<br />

Minnesota 55455, USA, *wagne003@umn.edu<br />

HIT enzymes are a ubiquitous superfamily consisting primarily of nucleoside phosphoramidases,<br />

dinucleotide hydrolyases and nucleotidylyl transferase. The distinguishing feature of these enzymes<br />

is an active site motif composed of the sequence, His-X-His-X-His-XX, where X is a hydrophobic<br />

residue. Three primary families of HIT have been identified. The first and most ancient is the<br />

histidine triad nucleotide binding protein (Hint). Hint homologs isolated from rabbit, human,<br />

chicken, yeast and E. coli. Mammalian Hint1 has been suggested to have tumor suppressor activity<br />

in a hint1-knock out mice model and human non-small cell lung carcinoma cells. Related to this<br />

observation, the expression of hHint1 has been shown to be a potential regulator of apoptosis.<br />

Recently, we and others have demonstrated that Hints are purine nucleoside phosphoramidases. In<br />

addition, we have discovered that Hints interact with amino acyl-tRNA synthetases by efficiently<br />

hydrolyzing amino acid adenylates. These are first example of natural substrates for these enzymes.<br />

Our laboratory has engaged in designing anticancer and antiviral pronucleotide based on our<br />

understanding of Hint structure-activity relationships. We are also engaged in elucidating the<br />

biological mechanism and function of Hints. The lecture will discuss both aspects of our research.<br />

183


KL-16<br />

STUDIES ON MODIFIED OLIGONUCLEOTIDES<br />

Lihe Zhang<br />

Peking University, School of Pharmaceutical Sciences 38 Xue-Yuan Road, Beijing, 100083, P.R.China<br />

Email: zdszlh@mail.bjmu.edu.cn<br />

184


KL-21<br />

KINASE AND KINASE INHIBITOR AS ANTICANCER THERAPEUTICS<br />

Chen Li<br />

Roche R&D Center (China) Ltd., 720 Cai Lun Road, Building 5, Pudong, Shanghai 201203, P.R. China<br />

185


KL-40<br />

STEREOCHEMISTRY OF ENZYME-ASSISTED P-N BOND CLEAVAGE IN<br />

ADENOSINE 5'-PHOSPHORAMIDATES AND –PHOSPHORAMIDOTHIOATES<br />

Agnieszka Krakowiak, Renata Kaczmarek, Janina Baraniak, Michał Wieczorek<br />

and Wojciech J. Stec<br />

Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences,<br />

112 Sienkiewicza Str., 90-363 Łódź, Poland<br />

The enhancement of the therapeutic activity of antiviral and anticancer nucleoside analogs and<br />

suppression of their side-effects is a continuing goal of several research establishments. Several<br />

prodrug approaches have been designed including phosphoramidate di- and mono-esters derived<br />

from amino acids. Because of the suggestion that Hint hydrolases might be responsible for<br />

nucleoside monophosphoramidate prodrug activation in vivo,1 elucidation of mechanism of<br />

phosphoramidase activity appeared important.<br />

Here we report on the stereochemistry of the reaction catalyzed by rabbit Hint1 using the<br />

P-diastereoisomers of adenosine-5’-O-[N-(tryptophanylamide)]phosphoramidothioate (AMPS-Trp).<br />

Stereocontrolled synthesis of the diastereoisomer substrates of rHint1 was feasible via our<br />

oxathiaphospholane approach.2 The absolute configuration at phosphorus of individual species has<br />

been assigned by X-ray analysis. We performed the experiment with rHint1 degradation of<br />

RP-AMPS-Trp to the AMPS-[18O] in the presence of H218O, sufficient for stereochemical<br />

analysis designed earlier in this Laboratory.3 MALDI-TOF MS analysis of the final product<br />

unambiguously proved the presence of [18O] isotope in the resulting heptamer (d[(AP)5A]PS18OA.<br />

Such result indicated that the overall process of the cleavage the P-N bond proceeds with<br />

stereochemical retention of configuration what is consistent with the participation of a covalent<br />

enzyme-substrate complex. To our best knowledge this is the first report of the stereochemical<br />

course of enzymatic P-N bond scission. The result is in agreement with the mechanism of action of<br />

two other P-O cleaving enzymes belonging to different branches of the HIT superfamily, namely<br />

Fhit hydrolase (second branch) and galactose-1-phosphate uridylyltransferase (GalT, third branch).4<br />

Additionally, we observed extensive loss of sulfur from AMPS as a sequential process<br />

accompanying P-N bond cleavage in the action of Hint-1 on nucleoside<br />

5’-O-phosphoramidothioates, and our preliminary results have shown that this desulfuration process<br />

is not ribonucleotide specific. Since the Hint enzyme has been shown to have homologs in all forms<br />

of life,4 our observations may become pertinent to the further elucidation of the metabolism of<br />

nucleoside 5’-O-phosphorothioates, formed e.g. as primary products of degradation of antisense<br />

oligonucleotide phosphorothioates by 3’-exonucleases. Additional studies concerning the<br />

elucidation of the mechanism of the enzyme-catalysed desulfuration process are in progress.<br />

Reference<br />

1.P. Bieganowski, P. N. Garrison, S. C. Hodawadekar, G. Faye, L. D. Barnes and C. Brenner, J. Biol. Chem., 2002, 277,<br />

10852-10860.<br />

2.W. J. Stec, B. Karwowski, M. Boczkowska, P. Guga, M. Koziołkiewicz, M. Sochacki, M. W. Wieczorek, and J.<br />

Błaszczyk, J. Am. Chem. Soc., 1998, 120, 7156-7167.<br />

186


KL-42<br />

POLYPHOSPHATES FOR DRUG AND GENE DELIVERY<br />

Renxi Zhuo, Shiwen Huang<br />

Key Laboratory of Biomedical Polymers, Ministry of Education, Department of Chemistry, Wuhan University, Wuhan<br />

430072, P.R.China<br />

Email: bmp@whu.edu.cn<br />

Synthetic biodegradable polymers, such as aliphatic polyesters, aliphatic polycarbonates,<br />

poly(ortho esters),polyanhydrides,polyphosphates etc, have been widely investigated and<br />

applied in biomedical field. Among the current biodegradable polymers, polyphosphates have<br />

attracted great attention because of their biocompatibility and pendant functionality. Additionally,<br />

polyphosphates, as copolymerization components, can increase the solubility of copolymers in<br />

common solvents and lower the glass-transiton temperature. As a result, the processability of<br />

copolymers can be greatly improved. We here report the synthesis of a series of novel<br />

polyphosphates and application in drug and gene delivery.<br />

Biodegradable polyphosphates copolymers were synthesized by ring-opening copolymerization<br />

of alkyl ethylene phosphate with a variety of cyclic monomers, such as D, L-lactide, cyclic<br />

carbonate, p-dioxanone. It was found that the introduction of phosphates into polylactide,<br />

polycarbonate and poly(p-dioxanone) would enhance the degradation rates of the copolymers.<br />

Water-soluble cationic polyphosphoramidates (PPAs) with different pendant primary amino<br />

groups were synthesized by ring-opening polymerization of 4-methyl-2-oxo-2-hydro<br />

-1,3,2-dioxaphospholane, followed by reacting with N-trifluoroacetyl diamine or<br />

N,N’-bis(trifluoroacetyl) triamine in the presence of CCl4, and deprotected in ammonia. These<br />

novel PPAs showed lower cytotoxicity than PEI and PLL, and mediated efficient in vitro and in<br />

vivo DNA transfection. In order to increase the stability under physiological conditions as well as in<br />

vivo transfection efficiency of PPA/DNA complexes, we conjugated PPA with galactose-end PEG<br />

(Gal-PEG-PPA), and evaluated its in vitro and in vivo transfection efficiencies. It is found that the<br />

incorporation of PEG and galactose into PPA decreases the cytotoxicity, improves the tissue<br />

compatibility, and greatly enhances the transgene expression in mouse and rat liver.<br />

187


KL-46<br />

SYNTHESIS AND BIOCHEMICAL ACTIVITY OF NEW<br />

OLIGONUCLEOTIDE ANALOGS<br />

Marvin H. Caruthers<br />

University of Colorado, Department of Chemistry and Biochemistry,<br />

Boulder, CO 80309-0215, USA<br />

Deoxyoligonucleotides containing phosphonoacetate and thiophosphonoacetate internucleotide<br />

linkages are synthesized from appropriately protected deoxynucleoside acetic acid<br />

phosphinoamidites. By additional use of standard deoxynucleoside phosphoramidites, synthesis<br />

could be extended to chimeras having phosphate or thiophosphate internucleotide linkages as well.<br />

These oligomers are stable to degradation by nucleases, generate A-form duplexes with<br />

complementary RNA, and stimulate RNase H activity. As acetic acid esters, phosphonoacetate<br />

oligomers stabilize uptake of interfering RNA (as duplexes) by HeLa, MDCK, K562 and Jurkat<br />

cells in the absence of cationic lipid. Moreover this siRNA is biologically active. The synthesis<br />

of phosphonoformate deoxyoligonucleotides can be carried out on a Q-linker support using<br />

appropriately protected formic acid phosphinoamidites. These synthons are protected on the<br />

formic acid ester with diphenylmethylsilylethyl and with 9-fluorenylmethyloxycarbonyl on the<br />

exocyclic amines. With this strategy, removal of all protecting groups as well as cleavage of the<br />

support linkage is possible using mild conditions (TEMED-HF at pH 8.6). By the use of formic<br />

acid phosphinoamidites in combination with standard deoxynucleoside H-phosphonates, chimeras<br />

having phosphonoformate and phosphate internucleotide linkages are synthesized. The resulting<br />

oligomers yield A-form duplexes with complementary RNA, are resistant to nuclease degradation,<br />

and stimulate RNase H activity 2-6 fold relative to the same unmodified heteroduplex. Unlike<br />

chimeric phosphonoacetates, phosphonoformate oligomers form duplexes with natural RNA that<br />

are dramatically more stable (10 °C-11 °C) than similar unmodified duplexes.<br />

Borane phosphonate deoxyoligonucleotides are synthesized from 5'-O-benzhydroxybis(trimethoxy)silyl-2'-deoxynucleoside-3'-phosphoramidites.<br />

The exocyclic amines of adenine and<br />

cytosine are protected with dimethoxytrityl and trimethoxytrityl, respectively, whereas guanine<br />

protection is with N2-(9-fluorenylmethoxy carbonyl). Thymine is protected with N3-anisoyl.<br />

Using these synthons and under standard conditions via activation with tetrazole, cyclic<br />

condensations in excess of 99% are observed. Oxidation with either THF•BH3 or a peroxyanion<br />

solution followed by cleavage of the silyl ether with fluoride completes a cycle. Following<br />

synthesis of an appropriate oligomer, protecting groups are removed using sequentially acetic acid,<br />

a dithiolate and ammonium hydroxide. Oligodeoxynucleotide 10mers having any combination of<br />

borane phosphonate and phosphate internucleotide linkages are synthesized in isolated yields of<br />

70-80% and characterized by phosphorus NMR and mass spectrometry.<br />

188


IL-41<br />

STUDY OF ARTIFICIALLY SELECTED BIOCATALYSTS COVALENTLY MODIFIED<br />

BY ORGANOPHOSPHORUS COMPOUNDS<br />

Alexander G. Gabibov †, Andrey V. Reshetnyak †, ‡ , Maria Francesca Armentano § , Natalia A. Ponomarenko † , Oxana<br />

Durova † , Rustam Ziganshin † , Marina Serebryakova # , Vadim Govorun # ,Gennady Gololobov, Herbert C. Morse III * ,<br />

Alain Friboulet ** , Sudesh P. Makker ‡ and Alfonso Tramontano §<br />

† Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry RAS, 16/10, Miklukho-Maklaya str, Moscow, 117871,<br />

Russia. § University of California, Davis – School of Medicine, Davis, CA 95616, USA.<br />

‡ Department of Chemistry, Lomonosov Moscow State University, Moscow, 119899, Russia.<br />

# Proteom Center of Russian Academy of Medical Sciences, Pogodinskaya str., Moscow, Russia.<br />

* Laboratory of Immunopathology, National Institute of Allergy and Infectious Diseases, National Institute of Health,<br />

5640 Fishers Lane, Rockville, MD 20852, USA. ** CNRS UMR 6022, Compiègne Technological University, BP 20529,<br />

Compiègne Cedex, France.<br />

The adaptation of biocatalysts by genetic diversification and functional selection is a promising<br />

new direction for drug discovery, molecular medicine and material science (1). More broadly,<br />

chemical selection applied to vast unbiased molecular libraries could give rise to artificial enzymes,<br />

affording important insight to the evolution of biocatalysis (2). Here we examine the enzyme-like<br />

functionality and structure of molecules identified in a reactivity-based search of a diversified<br />

protein repertoire represented by a synthetic phage-display human Ig V (scFv) gene library (2).<br />

Among the scFv selected by reaction with a phosphonate diester five clones had similar kinetic<br />

reactivity with kapp of 0.012 – 0.035 min -1 while a sixth (A.17) was nearly an order of magnitude<br />

more reactive (kapp = 0.32 min -1 ). Dissociation constants varied from 50 to 200 μM. Mass<br />

spectrometry identified nucleophilic Tyr33 at CDR-L1 in a representative clone A.5, whereas the<br />

more reactive A.17 was modified at Tyr37 in FR-L2. Consistently, site-directed mutants<br />

A.5Tyr33Phe and A.17Tyr37Phe were shown to be inactive while A.5 Tyr37Phe and A.17<br />

Tyr33Phe retained covalent reactivity. Furthermore, A.17 displayed specific amidase activity with<br />

Phe-MCA (kcat = 9.2 ± 0.5 x 10 -4 min -1 , Km = 50 μM). Mutant A.17Y37F was catalytically<br />

inactive suggesting covalent catalysis in the amidase mechanism. A VL germline with a highly<br />

conserved CDR3 was represented in 9/10 clones, whereas A.17 utilized a different VL. Greater<br />

diversity was seen in VH sequences, although Asn or Gln at position 105 in CDR-H3 was highly<br />

conserved in reactive clones and absent in non-reactive clones. Molecular modeling and docking in<br />

silica showed good complementarity at the active site with the phosphonate modifier and Phe-MCA<br />

substrate and further suggested the participation of Asn/Gln105 in an active site dyad with the<br />

nucleophilic Tyr. These sites may recapitulate a primitive catalytic apparatus in the origin of<br />

enzyme activity.<br />

189


IL-42<br />

THERMOSENSITIVE PHOSPHATE/THIOPHOSPHATE PROTECTING GROUPS AND<br />

THE DEVELOPMENT OF THERMOLYTIC OLIGONUCLEOTIDE PRODRUGS<br />

Andrzej Grajkowski, Cristina Ausín, Serge L. Beaucage<br />

Center for Drug Evaluation and Research, Food and Drug Administration, Bethesda, Maryland, USA<br />

Our research efforts have focused in recent years on the design and development of heat-sensitive<br />

groups for 5’-hydroxyl1 and phosphate/thiophosphate2-6 protection in an attempt to implement a<br />

“heat-driven” process for solid-phase oligonucleotide synthesis. Thus, thermosensitive groups such<br />

as the 2-(N-formyl-N-methyl)aminoethyl,2 4-oxopentyl,3 3-[(N-tert-butyl)carboxamido]-1-propyl,4<br />

3-(2-pyridyl)-1-propyl,5 2-[N-methyl-N-(2-pyridyl)]aminoethyl,5 and 4-methythio-1-butyl 6 were<br />

employed as P(III) protecting groups for deoxyribonucleoside phosphoramidites, which were<br />

incorporated into oligonucleotides via solid-phase techniques. Given the mild conditions under<br />

which thermolytic phosphate/thiophosphate protecting groups can be removed at near neutral pH,<br />

the use of these groups is attractive for the production of therapeutic oligonucleotides. The<br />

thermolytic deprotection mechanism of these protecting group was investigated and was consistent<br />

with an intramolecular cyclodeesterification reaction.2-6 While the phosphate/thiophosphate<br />

deprotection kinetics of DNA oligonucleotides functionalized with the thermolabile<br />

3-(2-pyridyl)-1-propyl, 2-[N-methyl-N-(2-pyridyl)]aminoethyl, and 4-methythio-1-butyl groups<br />

were relatively rapid (t∞ ~30 min, 55°C),5,6 the deprotection kinetics of oligonucleotides<br />

functionalized with the 2-(N-formyl-N-methyl)aminoethyl phosphate/thiophosphate protecting<br />

group were considerably slower (t∞ ~3 h) at a much higher temperature (90°C).2 Although not<br />

optimal for routine oligonucleotide synthesis, the 2-(N-formyl-N-methyl)aminoethyl<br />

phosphate/thiophosphate protecting group was deemed appropriate for the development of<br />

therapeutic oligonucleotide prodrugs on the basis of its sluggish deprotection kinetics at 37°C (t1/2<br />

~73 h).7 In this context, oligonucleoside phosphorothioates functionalized with the<br />

2-(N-formyl-N-methyl)aminoethyl group for thiophosphate protection exhibited the characteristics<br />

of oligonucleotide prodrugs in that they are uncharged and, thus, inherently resistant to the<br />

hydrolytic activity of nucleases. This class of modified oligonucleotides, unlike most recently<br />

developed oligonucleotide prodrugs, does not require esterases or other intracellular enzymes for<br />

prodrug-to-drug conversion. Only an aqueous environment maintained at 37°C or above is<br />

necessary to efficiently convert oligonucleoside 2-(N-formyl-N-methyl)aminoethyl<br />

phosphorothioate triesters to bioactive oligonucleoside phosphorothioate diesters. This novel<br />

concept in oligonucleotide prodrug development led to the solid-phase synthesis of CpG ODN<br />

fma1555[d(GPS(FMA)CPS(FMA)TPS(FMA)APS(FMA)GPS(FMA)APS(FMA)CPS(FMA)GPS(F<br />

MA)TPS(FMA)TPS(FMA)APS(FMA)GPS(FMA)CPS(FMA)GPS(FMA)T)]as a potential<br />

immunotherapeutic DNA oligonucleotide prodrug,7 where PS(FMA) stands for a<br />

2-(N-formyl-N-methyl)aminoethyl phosphorothioate triester function. CpG ODN fma1555 behaved<br />

as a prodrug by virtue of its conversion to the well-studied immunomodulatory oligonucleoside<br />

phosphorothioate diester CpG ODN 1555 [d(GPSCPSTPSAPSGPSAPSCPSGPSTPS TPSAPS<br />

GPSCPSGPST)] through thermolytic cleavage of the 2-(N-formyl-N-methyl)aminoethyl<br />

thiophosphate protecting group at 37°C. The immunostimulatory properties of CpG ODN fma1555<br />

190


were evaluated in mice challenged in the ear with live Leishmania major metacyclic promastigotes.<br />

Local intradermal administration of CpG ODN fma1555 was as effective as that of CpG ODN 1555<br />

in reducing the size of Leishmania lesions over time.7 In a different infectious model, CpG ODN<br />

fma1555prevented the death of Tacaribe-infected mice (60-70% survival) when administered three<br />

days before infection.7 Interestingly, co-administration of CpG ODN fma1555 and CpG ODN 1555<br />

in this model increased the window for therapeutic treatment against Tacaribe virus infection, and<br />

thus supported the use of thermolytic oligonucleotides as prodrugs in the effective treatment of<br />

infectious diseases. Our results are consistent with the notion that CpG ODN fma1555 behaves as a<br />

prodrug in vivo through an unprecedented thermolytic process. These findings prompted us to<br />

design CpG ODN prodrugs exhibiting either a shorter or longer half-time of thiophosphate<br />

deprotection relative to that of CpG ODN fma1555 for the preparation of effective and long-acting<br />

immunotherapeutic oligonucleotide formulations against various infectious diseases in animal<br />

models. In this regard, the 5’-proximal CpG motif of CpG ODN fma1555 has been functionalized<br />

with a single thermolabile 4-hydroxy-1-butyl (hbu) or 4-thiophosphato-1-butyl thiophosphate (psb)<br />

protecting group.8 These modifications were achieved through incorporation of an activated<br />

deoxyribonucleoside phosphoramidite, carrying a 4-levulinyloxy-1-butyl group for phosphorus<br />

protection, into the oligonucleotide chain during solid-phase synthesis, and through an optional<br />

phosphorylation reaction effected by bis[S-(4,4’-dimethoxtrityl)-2-mercaptoethyl]-N,N-diisopropylphosphoramidite 9<br />

after hydrazinolysis of the 4-levulinyl group. The thermal deprotection kinetics of the hbu and psb<br />

thiophosphate protecting groups were determined in phosphate-buffered saline (pH 7.2) using<br />

dinucleotide models. The thermolytic cleavage of the 4-hydroxy-1-butyl and<br />

4-thiophosphato-1-butyl thiophosphate protecting groups from the dinucleotide model occurred<br />

with a half time of 47 min and 13 min, respectively, at 90 °C or 168 h and 30 h, respectively, at<br />

37°C. Studies assessing cellular uptake and biological activity of the modified CpG ODN fma1555<br />

(CpG ODN hbu1555 and CpG ODN psb1555) are ongoing. Incidentally, the solubility of CpG<br />

ODN psb1555 in water has increased by ~50% relative to that of CpG ODN fma1555. Our findings<br />

thus foster the chemical development of novel, minimally charged, thermolytic oligonucleotide<br />

prodrugs exhibiting an optimal range of prodrug-to-drug conversion half times for optimal<br />

therapeutic outcomes.<br />

References<br />

[1] M.K. Chmielewski, V. Marchán, J. Cieślak, A. Grajkowski, V. Livengood, U. Münch, A. Wilk and S.L. Beaucage, J.<br />

Org. Chem., 68, 10003 (2003).<br />

[2] A. Grajkowski, A. Wilk, M.K. Chmielewski, L.R. Phillips and S.L. Beaucage, Org. Lett., 3, 1287 (2001).<br />

[3] A. Wilk, M.K. Chmielewski, A. Grajkowski, L.R. Phillips and S.L. Beaucage, Tetrahedron Lett., 42, 5635 (2001).<br />

[4] A. Wilk, M.K. Chmielewski, A. Grajkowski, L.R. Phillips and S.L. Beaucage, J. Org. Chem., 67, 6430 (2002).<br />

[5] J. Cieślak and S.L. Beaucage, J. Org. Chem., 68, 10123 (2003).<br />

[6] J. Cieślak, A. Grajkowski, V. Livengood, and S.L. Beaucage, J. Org. Chem., 69, 2509 (2004).<br />

[7] A. Grajkowski, J. Pedras-Vasconcelos, V. Wang, C. Ausín, S. Hess, D. Verthelyi and S.L. Beaucage, Nucleic Acids<br />

Res., 33, 3550 (2005).<br />

191


IL-43<br />

ADVANCING BIOMEDICAL RESEARCH BY DEVELOPMENT OF FLUORESCENT<br />

OLIGONUCLEOTIDE-BASED ASSAYS<br />

Gerald Zon<br />

Applied Biosystems, Advanced Research & Technology,Foster City, CA 94404, USA<br />

Automated solid-phase synthesis of oligodeoxynucleotides (ODNs) based on 5’-dimethoxytrityl<br />

3’-phosphoramidite 2’-deoxynucleoside monomers pioneered by Caruthers and coworkers was<br />

commercially introduced by Applied Biosystems Inc. (ABI) in 1983 as a convenient source of<br />

ODNs for basic research and recombinant DNA technology. Shortly thereafter, ABI introduced<br />

4-colored 5’-fluorescently labeled ODNs for automated Sanger-sequencing of DNA, which was<br />

subsequently improved by development of 2’, 3’-dideoxynucleotide triphosphate terminators having<br />

fluorescence resonance energy transfer (FRET) dyes (BigDye®). ODN primers and BigDye®<br />

technology was used to sequence the human genome in 2001, and thus enabled the era of genomics.<br />

Ready access to synthetic ODN primers for PCR, and development by ABI of FRET-based<br />

TaqMan® probes, has enabled real-time quantification of mRNA for gene expression analysis, as<br />

well as detection of single nucleotide polymorphisms (SNPs). All of these fluorescent<br />

oligonucleotide-based assays are now widely use for basic and biomedical research of human or<br />

other species genomes and transcriptomes. Such analyses of genetic variation have given rise to the<br />

concept of “personalized medicine,” wherein genomic analytical data for an individual is used to<br />

assess predisposition to inherited or somatic diseases, as well as drug efficacy or toxicity. To do this<br />

on abroad scale, the cost of sequencing an individual genome must be greatly reduced, which has<br />

led to the quest for what is called the “$1,000 genome.” ABI has begun development of a novel<br />

technology called Sequencing by Oligonucleotide Ligation and Detection (SOLiD) that offers the<br />

possibility for significantly reduced costs of genomic sequencing. In this massively parallel<br />

approach, short-fragment DNA populations are clonally amplified by emulsion PCR onto 1-micron<br />

beads, which are then enriched and randomly deposited and attached onto glass arrays. The bead<br />

array is then placed into an automated flow-cell where 4-color 5’-fluorescently-labeled probes are<br />

used to interrogate bead-attached DNA-template positions relative to an ODN primer having a<br />

5’-phosphate. Ligase is used to join the 5’-phosphate to the 3’-end of the hybridized probe, and is<br />

followed by washing and then fluorescence detection to identify the base at the interrogation<br />

position. A metal ion-catalyzed cleavage reaction involving a 3’-phosphorothiolate linkage is used<br />

to fragment the ligated probe to release a fluorescent moiety and generate a 5’-phosphate group on<br />

the extended primer for a further ligation. The aforementioned steps define a cycle that is repeated a<br />

number of times. The resultant multiply-extended primer is eluted from the bead-attached DNA<br />

template, and a second primer that is shorter by one base is used to carry out a number of<br />

base-interrogation cycles. This process is repeated to ultimately afford the base-by-base sequence of<br />

the bead-attached DNA template. In the case of 25-base sequence reads by SOLiD, the automated<br />

system under development is projected to provide 1 billion bases of DNA sequence in each run.<br />

192


IL-44<br />

NON WATSON-CRICK STRUCTURE RECOGNITION AND ITS APPLICATIONS<br />

Zhen Xi<br />

National Key Laboratory of Elemento-Organic Chemistry, Department of Chemical Biology, College of Chemistry<br />

Nankai University,Tianjin 300071, P.R.China Email: zhenxi@nankai.edu.cn<br />

Nucleic acids can have richly diverse structures, including hairpins, knots, pseudoknots, triple<br />

helices, loops, helical junctions etc. Such bulged structures in nucleic acids are of general biological<br />

significance. They have been proposed as intermediates in a multitude of processes including RNA<br />

splicing, frame-shift mutagenesis, intercalator induced mutagenesis, imperfect homologous<br />

recombination, as the binding site for the coat protein of bacteriophage, in the ribosomal<br />

synthesizing machinery and in RNAi of pre-microRNA (bulge-RNA hairpin), the precursor of<br />

microRNA. Bulges have also been suggested as binding motifs for regulatory proteins involved<br />

with viral replication, including the TAR region of HIV-1. Additionally, the etiology of at least 31<br />

human neurodegenerative genetic diseases has been attributed to genetic variations in the lengths of<br />

triplet repeats in genomic DNA (e.g. myotonic dystrophy, Huntington’s disease, Friederich’s ataxia,<br />

and fragile X syndrome). The unstable expansion of triplet repeats has been attributed to reiterative<br />

synthesis due to slippage and bulge formation in the newly formed DNA strand. As such,<br />

compounds capable of binding to bulges/hairpin could have significant therapeutic potential.<br />

In this talk, the recent progress of our lab on study of non Watson-Crick structure recognition by<br />

small molecules will be discussed. Different small organic molecules mimicking natural products<br />

are designed to selectively bind to bulged structures. It has been found that those designed small<br />

molecules not only bind to the non Watson-Crick structures, but also express different biological<br />

functions through their selective binding. Neocarzinostatin analogues, which bind bulged structure<br />

with micromolar of dissociation Kd, can stimulate the DNA slippage during its replication,<br />

especially for those DNA sequences of triply repeats that cause certain genetic diseases.<br />

Tylophorine B, which binds bulged structure of DNA and RNA with nanomolar of dissociation Kd,<br />

interferes with Tobacco Mosaic Virus particle assembly to inhibit TMV virus infection.<br />

Sparsomycin analogues targeting on ribosome inhibit bacterial growth. Through our work, we have<br />

shown that study on non Watson-Crick structure recognition by small molecules is an efficient way<br />

to generate bioactive molecular probes for understanding the molecular mechanism of some<br />

important biological process involving such bulged structures in nucleic acids.<br />

193


IL-45<br />

PROBING MECHANISMS OF PHOSPHOTRANSFERASES WITH THIO EFFECTS<br />

Karol Bruzik<br />

Department of Medicinal Chemistry and Pharmacognosy, The University of Illinois at Chicago 833 S. Wood St.<br />

Chicago, IL 60612, USA Email: kbruzik@uic.edu<br />

194


IL-47<br />

RNA INTERFERENCE: THE NEW PARADIGM OF DRUG DISCOVERY BASED ON<br />

NATURE'S PHOSPHOROUS CHEMISTRY<br />

Muthiah Manoharan<br />

Drug Discovery Alnylam Pharmaceuticals Cambridge, USA<br />

Email: mmanoharan@isisph.com<br />

195


IL-49<br />

SYNTHESIS AND BIOLOGICAL STUDIES OF G-QUADRUPLEX STABILIZERS<br />

Lige Ren, Jing Huang, Boqiao Fu, Xiang Zhou*<br />

College of Chemistry and Molecular Sciences, Wuhan University, Hubei, Wuhan, 430072, P. R. of China<br />

Telomeres exist at the ends of eukaryotic chromosomes and can protect chromosome. [1] It is<br />

known that telomeric repeats with the single-stranded G-rich overhang can be extended by telomerase.<br />

[2] . Telomerase is active in most tumor cells and not in normal cells and could be good strategy for<br />

antitumor drug design with high selectivity. It was reported that telomerase inhibition occurred via a<br />

quadruplex-mediated mechanism because of G4 selectivity over duplex DNA affinity and<br />

increasing potency for telomerase inhibition. [3] We shall report our synthesis of new families of<br />

G-quadruplex Stabilizers and study their interaction with G-quadruplex DNA.<br />

Reference<br />

[1] T. R., Cech, Cell 2004, 116, 273<br />

[2] E. H. Blackburn, Cell, 2001, 106, 661..<br />

[3] T. M. Fletcher, Expert Opin.Ther. Targets, 2005, 9, 457<br />

196


O-96<br />

PERIFOSINE INHIBITS MULTIPLE SIGNALING PATHWAYS IN GLIAL PROGENITORS AND COOPERATES<br />

WITH TEMOZOLOMIDE TO ARREST CELL PROLIFERATION IN GLIOMAS IN VIVO.<br />

Alan H. Shih, Hiro Momota, Edward Nerio, Eric C Holland<br />

Perifosine (Octadecyl-(N,N-dimethylpiperidino-4-yl)phosphate) is a novel akylphosphocholine<br />

that has anti-neoplastic properties. Perifosine may act by altering cellular membrane composition<br />

or inhibiting mitogenic signalling. Specifically, it can act as an oral Akt inhibitor which exerts a<br />

marked cytotoxic effect on human tumor cell lines, and is currently being tested in several phase II<br />

trials for treatment of major human cancers. However, the efficacy of perifosine in human gliomas<br />

has not been established. As Akt is activated in 70% of human glioblastomas, we investigated the<br />

impact of perifosine on glia in culture and on a mouse glioma model in vivo. Here we show that<br />

perifosine strongly reduces phosphorylation levels of Akt and extracellular signal-regulated kinase<br />

(Erk) 1/2, induces cell cycle arrest in G1 and G2, and causes dose-dependent growth inhibition of<br />

mouse glial progenitors in which Akt and/or Ras-Erk 1/2 pathways are activated. Furthermore,<br />

because temozolomide is a common oral alkylating agent used in the treatment of gliomas, we<br />

investigated the effect of perifosine in combination with temozolomide. We observed an enhanced<br />

effect when both were used in culture. With these results, we combined perifosine and<br />

temozolomide as treatment of platelet-derived growth factor B–driven gliomas in mice. Animal<br />

studies showed that perifosine and temozolomide combination therapy was more effective than<br />

temozolomide treatment alone (P < 0.01). These results indicate that perifosine is an effective drug<br />

in gliomas in which Akt and Ras-Erk 1/2 pathways are frequently activated, and may be a new<br />

candidate for glioma treatment in the clinic.<br />

197


O-97<br />

A LOW-MOLECULAR PHOSPHINIC INHIBITOR OF LEUCINE AMINOPEPTIDASE<br />

OF POTENTIAL MEDICAL SIGNIFICANCE<br />

A.Mucha<br />

Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Technology, WybrzeŜe<br />

Wyspiańskiego 27, 50-370 Wrocław, Poland<br />

H-hPheψ[PO2HCH2]Phe-OH, a phosphinic dipeptide analogue has been demonstrated to be a<br />

potent, competitive inhibitor of cytosolic leucine aminopeptidase (LAP, E.C.3.4.11.1), mimicking<br />

the transition state of the reaction catalysed by the enzyme. Exhibiting Ki value of 66 nM (for the<br />

mixture of four diastereomers) it has been ranked among the most potent inactivators of LAP<br />

reported so far [1] .<br />

Here, we summarize the development of the inhibitor together with its current study and<br />

application achievements. Thus, novel results concerning the activity of the individual<br />

diastereoisomers of H-hPheψ[PO2HCH2]Phe-OH towards LAP are given. High performance liquid<br />

chromatography and capillary electrochromatography based on silica modified with a cinchona<br />

alkaloid-derived chiral selector have been utilized to separate all four stereoisomers. Recently, the<br />

compound has been also successfully employed to inhibit leucyl aminopeptidase of P. falciparum, a<br />

potential target protease for the development of new antimalarials. Significant suppression of both<br />

the enzyme activity and the growth of the pathogen in vitro as well as the parasite burden in vivo<br />

have been evidenced.<br />

Reference<br />

[1] J. Grembecka, A. Mucha, T. Cierpicki, and P. Kafarski, J. Med. Chem., 46, 2641(2003).<br />

198


O-98<br />

MAPPING OF THE FUNCTIONAL PHOSPHATE GROUPS IN THE CATALYTIC CORE OF<br />

DEOXYRIBOZYME 10-23<br />

Barbara Nawrot*, Kinga Widera, Marzena Wojcik, Beata Rebowska, Wieslawa Goss, Wojciech J. Stec<br />

Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies of the Polish Academy of<br />

Sciences, Sienkiewicza 112, 90-363 Lodz, Poland<br />

Phone: +48-42-6816970, Fax: +48-42-6815483, E-mail: bnawrot@bio.cbmm.lodz.pl<br />

The RNA phosphodiester bond cleavage activity of a series of sixteen thio-deoxyribozymes<br />

10-23, containing a P-stereorandom single phosphorothioate linkage in predetermined positions of<br />

the catalytic core from P1 to P16, was evaluated under single turnover conditions in the presence of<br />

either 3 mM magnesium or manganese ions. A metal-specificity switch approach permitted to<br />

identify non-bridging phosphate oxygens (pro-RP or pro-SP) located at seven positions of the core<br />

(P2, P4 and P9-13) involved in a direct coordination with a divalent metal ion(s). By contrast,<br />

phosphorothioates at positions P3,6,7, and P14-16 displayed no functional relevance in the<br />

deoxyribozyme-mediated catalysis. Interestingly, PS modifications at positions P1 or P8 enhanced<br />

catalytic efficiency of the enzyme. Among the tested deoxyribozymes, thio-substitution at position<br />

P5 had the largest deleterious effect on the catalytic rate in the presence of Mg 2+ and this was<br />

reversed in the presence of Mn 2+ ions. Further experiments with thio-deoxyribozymes of<br />

stereodefined P-chirality suggest direct involvement of both oxygens of the P5 phosphate and the<br />

pro-RP-oxygen at P9 in the metal ion coordination. In addition, it was found that the oxygen atom at<br />

C-6 of G6 contributes to binding of metal ion and this interaction is essential for the 10-23<br />

deoxyribozyme catalytic activity.<br />

The obtained data enabled us to propose a model for the metal binding site in the catalytic core of<br />

deoxyribozyme 10-23. In this model, the plausible ligands for metal coordination are the pro-RP and<br />

pro-SP oxygen atoms of the P5 phosphate and the pro-RP oxygen from position P9 as well as the<br />

carbonyl oxygen of the guanosine unit at position 6 of the 10-23 catalytic core (Figure).<br />

O<br />

T 4<br />

P5<br />

O T<br />

O<br />

P<br />

A5 O<br />

pro-R P<br />

O O<br />

Mg 2+<br />

O<br />

pro-S P<br />

O A<br />

O<br />

P<br />

O<br />

O<br />

O<br />

O<br />

N<br />

?<br />

O<br />

N N<br />

G 6<br />

NH<br />

199<br />

?<br />

NH 2<br />

pro-R P<br />

O<br />

O<br />

O<br />

P<br />

O O A<br />

O<br />

P9<br />

O<br />

O T<br />

T 8<br />

A 9


O-100<br />

THE AZA-Α-AMINOPHOSPHONATE MACROCYCLES AS POTENTIAL<br />

SUPRAMOLCULAR HOSTS FOR METAL IONS AND BIOLOGICALLY<br />

IMPORTANT MOLECULES<br />

P.Mlynarz a , A.Rydzewska a , S.Sliwinska a , G.Schroeder b ,P.Kafarski a<br />

a Department of Chemistry, Wroclaw University of Technology, 50- 370 Wroclaw, Poland.<br />

b Faculty of Chemistry, A. Mickiewicz University, Grunwaldzka 6, 60-780 Poznan<br />

The discovery of family of macrocyclic compounds was the milestone in chemistry. These<br />

compounds have been recognized as supramolecular receptors for metal ions and many organic<br />

molecules. Therefore, they were used for construction of selective sensors, model compounds<br />

mimicking enzyme actions or transport through membranes, etc. On the other hand,<br />

aminophosphonates were found to be good enzyme inhibitors and metal ion chelators used in many<br />

branches of industry (e.g. agricultural, pharmaceutical and chemical) [1] . In this work we designed<br />

and synthesized aza-aminophosphonate macrocycles 1 and 2 combining features of both<br />

macrocyclic and aza-8-aminophosphonic entities and based on well described receptor 3 as skeleton<br />

for amino acids [2] . The introduction four phosphonic groups placed into carefully tailored cavity<br />

should result in the new synthetic receptors for biologically important molecules and metal ions and<br />

thus may serve as metalloreceptors or contrast agents for MRI.<br />

References<br />

[1]. “Aminophosphinic and Aminophosphonic Acids. Chemistry and Biological Activity”, Eds. V. P. Kukhar and H. R.<br />

Hudson , John Wiley & Sons LTD, Chichester, 2000.<br />

[2]. J. Huang, Sh.-A. Li, D.-X. Yang, W.-Y. Sun and W.-X. Tang, Bioorg. Biomed. Chem. J.2004, 12, 529.<br />

200


O-101<br />

STUDIES ON THE CONDENSATION OF H-PHOSPHONATE MONOESTERS<br />

WITH S-NUCLEOPHILES<br />

Renata Hiresova and Jacek Stawinski*<br />

Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University,<br />

S-10691 Stockholm, Sweden;<br />

Oligonucleotide analogues containing modified internucleotide linkages are of the growing<br />

interest as potential therapeutic agents 1 and tools in molecular biology for manipulation of RNA and<br />

DNA 2 . Among these, oligonucleoside phosphorothioates 2-4 and phosphorodithioates 5 are<br />

particularly attractive since they are isopolar and isosteric to their natural congeners.<br />

Here we report our preliminary studies on the condensation of nucleoside H-phosphonate<br />

monoesters with various thiols to produce a new type of H-phosphonate analogues, nucleoside<br />

H-phosphonothioates, bearing sulfur atom in the bridging position at the phosphorus center. Via<br />

oxidative transformations, the produced H-phosphonothioate derivatives can be converted into<br />

various nucleotide analogues that are difficult accessible on other routes.<br />

DMTO<br />

Abbreviations:<br />

C.A. = coupling agent<br />

R = alkyl, nucleosidyl, cholesteryl<br />

Thy = thymin-1-yl<br />

O<br />

O<br />

O<br />

P H<br />

O<br />

Thy<br />

DMTO<br />

R-SH<br />

C.A.<br />

References<br />

1. Zon, G. Pharm. Res. 1988, 5, 539-549.<br />

2. Eckstein, F.; Gish, G. TIBS 1989, 97-100.<br />

3. Eckstein, F. Ann. Rev. Biochem. 1985, 54, 367-402.<br />

4. Cosstick, R.; Vyle, J. S. Tetrahedron Lett. 1989, 30, 4693-4696.<br />

5. Brill, W. K.-D.; Tang, J.-Y.; Ma, Y.-X.; Caruthers, M. H. J. Am. Chem. Soc. 1989, 111, 2321-2322.<br />

O<br />

O<br />

O<br />

P O<br />

SR<br />

DMTO<br />

Thy<br />

201<br />

[O]<br />

O<br />

O<br />

O<br />

P H<br />

SR<br />

Thy<br />

[S]<br />

DMTO<br />

O<br />

O<br />

O<br />

P S<br />

SR<br />

Thy


O-103<br />

ESI INVESTIGATION OF NON –COVALENT COMPLEXES BETWEEN<br />

PHOSPHORYLATED DAIDZEIN AND INSULIN<br />

Chen Xiaolan 1 , Shi Xiaona 1 , Yuan Jinwei 1 , Lu Jiansha 1 , Qu Lingbo 1, 2 , Zhao Yufen 1,3<br />

1<br />

Department of Chemistry, Zhengzhou University, Zhengzhou, 450052, P. R. China<br />

2<br />

Anyang Normal College, Henan Province, Anyang, 455002, P. R. China<br />

3<br />

The Key Laboratory for Bioorganic Phosphorus Chemistry, Department of Chemistry<br />

School Life Sciences and Engineering, Tsinghua University, Beijing, 10084, P. R. China<br />

Since the end of last century, ESI-MS has begun to be used to reveal the existence of<br />

non-covalent complexes, providing important stoichiometric information. Many researchers have<br />

reported the use of ESI-MS to determine dissociation constants of such complexes. Gas phase<br />

dissociation constants measured in this way have been found to correlate well with those measured<br />

by solution based techniques [1,2] . In the work described in this paper, daidzein<br />

(7,4′-dihydroxyisoflavone) was first phosphorylated by a modified Atherton-Todd reaction and the<br />

structures of the five target products were determined by X-ray, IR, NMR and ESI. Our ESI results<br />

show that all the phosphorylated daidzeins can form non-covalent complexes with the protein<br />

insulin, while non-covalent complexes were not detected in solutions of unphosphorylated daidzein<br />

and insulin. The relative affinity of each non-covalent complex was obtained according to its<br />

different decomposed orifice voltage. From Table 1, it is clear that compound e has the highest<br />

disappeared orifice voltage and therefore the strongest binding affinity. The relative stability of the<br />

non-covalent complexes was closely associated with the length of the hydrophobic chain.<br />

HO<br />

O<br />

O<br />

OH<br />

O<br />

RO PH<br />

OR<br />

CCl4,Et3N<br />

DMF<br />

202<br />

RO<br />

O<br />

P O<br />

OR<br />

a R= -CH3 b R= -CH2CH3 c R= -CH2CH2CH3<br />

d R= -CH(CH3)2 e R= -CH2CH2CH2CH3<br />

Scheme 1.<br />

Table 1. The orifice voltage of the non- covalent complexes disappeared<br />

Compound a b c d e<br />

orifice voltage /Volt 133.8 146.0 151.8 157.4 162.9<br />

References<br />

[1] Daniel, J.M.; McCombie, G.; Wendt, S. J. Am. Soc.Mass Spectrom. 2003,14,442.<br />

[2] Dotsikas, Y.; Loukas, Y.L. J. Am. Soc. Mass Spectrom. 2003,14,1123.<br />

O<br />

O<br />

OH


O-104<br />

SYNTHESIS OF NOVEL STEROIDAL BIOCONJUGATES WITH AZT<br />

AND PHOSPHORUS<br />

Peiyuan Jin, Kai Liu, Yong Ju,*<br />

Yufen Zhao<br />

Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Ministry of Education, Department of<br />

Chemistry, Tsinghua University, Beijing 100084, P. R. China<br />

Steroidal phosphates are important biological molecules.1 3’-Azido-3’-deoxythymidine (AZT,<br />

Zidovudine) is now the backbone of most combination therapies for AIDS and HIV infection, and it<br />

remains one of the most prescribed AIDS drugs. AZT is activated by phosphorylation in vivo and<br />

inhibits HIV replication by blocking a critical HIV enzyme,2 and many H-phosphonates of AZT<br />

have also been shown to possess high anti-HIV activity.3 In order to further improve the activity<br />

and overcome the drawback, some steroid phospholipids conjugated with AZT were synthesized in<br />

good yields as potential membrane-soluble prodrugs of the phosphate forms,4, 5 which is due to<br />

their lipophilic characteristic, lymphocyte membrane affinity and the ability of binding to low<br />

density lipoprotein. These phospholipids were easily transformed to corresponding phosphates,<br />

phosphorothioates, and phosphoroselenoates or phosphoramidates6, 7 by oxidation or conjugation<br />

with amines using Atherton–Todd reaction. The structures of synthesized steroidal conjugates with<br />

AZT containing phosporus were confirmed on the basis of the 1H NMR, 31P NMR, and ESI-MS<br />

data.<br />

PhO<br />

O<br />

P OPh<br />

(1) AZT,Py<br />

(2) ROH, Py<br />

O<br />

RO P O<br />

H H<br />

ROH =<br />

O<br />

N 3<br />

O<br />

O<br />

N<br />

203<br />

NH<br />

HO<br />

HO HO<br />

O<br />

H<br />

P O<br />

n O<br />

n = 14; 16<br />

N 3<br />

O<br />

R'OH =<br />

O<br />

N<br />

HO<br />

NH<br />

O<br />

+ H2N O<br />

RO<br />

O<br />

P O<br />

X- Et3NH +<br />

X: a = S; b = Se; c = O N3 O<br />

O<br />

H H<br />

O N N P O<br />

R'' R' R' R''<br />

N O<br />

O<br />

H<br />

O<br />

O<br />

*<br />

N3 n<br />

R'' = CH2CH2 CH2CH2CH2CH2CH2CH2 CH2CH2NHCH2CH2 CH2CH2CH2NHCH2CH2CH2 Project supported by the NSF of China (No. 20542004) and SRFDP of Higher Education (No.20050003104).<br />

References<br />

1. Sprecher, M.; Breslow, R.; Philosof-Oppenheimer, R.;Chavet, E. Tetrahedron 1999, 55, 5465.<br />

2. Yarnell, A. Chem. Eng. News 2005, 83, 48.<br />

3. Cardona, V. M. F.; Ayi, A. I.; Aubertin, A. M.; Guedj, R. Antiviral Res. 1999, 42, 189.<br />

4. Ji, S. H.; Xiao, Q.; Ju, Y.; Zhao, Y. F. Chem. Lett. 2005, 34, 944.<br />

5. Xiao, Q.; Sun, J.; Ju, Y.; Zhao, Y. F.; Cui, Y. X. Chem. Lett. 2003, 32, 522.<br />

6. Ji, C. J.; Xue, C. B.; Zeng, J. N.; Zhao, Y. F. Synthesis 1988, 444.<br />

[O]<br />

O<br />

O<br />

O<br />

O<br />

N<br />

NH<br />

O<br />

N<br />

O<br />

NH<br />

O


P-33<br />

THE CHEMICAL SYNTHESIS OF OLIGONUCLEOTIDE PHOSPHORAMIDATES<br />

HongYu Zhang, ChunJian Duan, XiangQian Liu, XiaoLan Chen, LingBo Qu, YuFen Zhao<br />

Key Laboratory of Chemical Biology and Organic Chemistry, Zhengzhou University, Zhengzhou 450052<br />

The method of synthesis of monofunctional nucleoside phosphoramidity by using trivalent<br />

phosphorous as reactant has been drawn much attention since the approach was introduced by<br />

Beaucage and Caruthers. All chemotherapeutic nucleoside analogues, for viral infections and cancer,<br />

exert their effect only after metabolic activation in the target cell to their 5’-phosphate forms. Often<br />

the efficiency of intracellular phosphorylation of nucleoside analogues can limit their therapeutic<br />

potential, but the pre-formed phosphates are of limited utility on account of their poor membrane<br />

permeation. In order to research it function, these oligonucleotide phosphoramidates were<br />

synthesized. All compounds have been elucidated by 1 H NMR, 13 C NMR, MS.<br />

HN<br />

O<br />

HO<br />

O<br />

O<br />

N<br />

H H<br />

H<br />

OH<br />

H<br />

OH<br />

R 1<br />

HO<br />

H<br />

H<br />

O<br />

O<br />

HN<br />

O<br />

O<br />

N<br />

H<br />

H<br />

O<br />

R 1<br />

Cl<br />

P<br />

Cl<br />

PCl3 HN<br />

O<br />

O<br />

H<br />

H<br />

O<br />

DMTrO<br />

O<br />

O<br />

N<br />

H H<br />

H<br />

OH<br />

H<br />

OTBDMS<br />

Scheme 1<br />

References<br />

1. Christopher M., Jean-Christophe T., Felice D.,etc., Bioorganic & Medicinal Chemistry. 2005, 13, 3219–3227.<br />

2. Joshua S. W., David K., Stephen A.S.. etc. Nucleic Acids Research, 2004, 4(32), 1502-1511.<br />

O<br />

O<br />

204<br />

HN<br />

O<br />

N<br />

H<br />

H<br />

O<br />

R 1<br />

R 3 OOC<br />

R 1 =H,Br, R 2 =H,CH 3, R 3 =CH 3,CH 2CH 3<br />

R 1<br />

R 2<br />

DMTrO<br />

O<br />

H H<br />

R<br />

H<br />

O<br />

O<br />

P<br />

H<br />

OTBDMS<br />

O<br />

N<br />

H H<br />

O<br />

H<br />

H<br />

O<br />

H<br />

O<br />

2<br />

R3 O N<br />

OOC<br />

NH 2<br />

HN<br />

O<br />

R 1


P-41<br />

STUDIES ON THE SELF-ASSEMBLY OF L-SERINE INTO L-SERINE<br />

PHOSPHOPEPTIDE MEDIATED BY PHOSPHORUS OXYCHLORIDE<br />

Jianchen Zhang 1 , Wenping Shi 1 , Jun Xu 2 , Yufen Zhao 3<br />

1<br />

Department of Chemical Defense, Institute of Chemical Defense, Beijing 102205<br />

2<br />

Department of Humanities and Basic Sciences, Zhengzhou College of Animal Husbandry Engineering, zhengzhou<br />

450011<br />

3<br />

The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, University, Xiamen 361005<br />

L-Serine phosphopeptide is a main bioactive segment in casein Phosphopeptides. In this paper,<br />

L-Serine peptide was synthesized by the self-assembly of L-serine mediated by phosphorus<br />

oxychloride. 31 P NMR and ESI-MS/MS were used to study the mechanism and products of the<br />

reaction and confirm the structures of the peptides.<br />

The reaction of L-serine and phosphorus oxychloride could be assembled into 2~8 homo-peptides<br />

by phosphorus oxychloride activation, after quenching with water, the reaction mixture yielded the<br />

L-Serine peptide, which were analyzed by ESI-MS and ESI-MS/MS. It was found that the length<br />

and yield of L-Serine peptide were related with the reaction time, the polarity of the solvent and the<br />

reaction temperature. As the reaction time was prolonged, the length of peptides increased; the<br />

lengths of peptides increased as increased the polarity of the solvent. Especially, acetonitrile or<br />

chloroform could give the better result; Lower temperature might close down the reactive of<br />

hydroxy and increase yield. Actually, L-Serine peptide libraries were obtained. The quantitative<br />

water was added to the reaction mixture. The temperature was controlled at 60 ℃ and kept stirring<br />

for 2.0 h. After cooling, 95% ethanol was added and stored overnight at 3 ℃ . And L-Serine<br />

phosphopeptide was obtained.<br />

References<br />

Fowshon A. M., Maeda M., Sasaki S., Bioorg. Med. Chem., 2000, 8, 465-473<br />

Liu Y., Fan H.K., Zhou H. et al., Chem. J. Chin. University, 1999,20, 744-746<br />

Qi J.,Fang R.,Zhou H. et al., Chem. J. Chin. University, 1996, 17, 1738-1741<br />

Kui Lu, Yan Liu, Ning Zhou, Yu-Ping Feng, Li Xu, Ling-Bo Qu, Yu-Fen Zhao, J.Tsinghua University, 2001, 41, 80-82<br />

Kui Lu, Yan Liu, Yi Chen, Ning Zhou, Qiang Lu, Ling-Bo Qu, Yu-Fen Zhao, J Tsinghua University, 2001, 41, 77-79<br />

Kui Lu, Ning Zhou, Yan Liu, Yi Chen, Xiang-Fen Guo, Ling-Bo Qu, Yu-Fen Zhao, J. Tsinghua University, 2001, 41,<br />

87-89<br />

205


P-43<br />

SYNTHESIS OF N-PROTECTED O-HYDROXYL-PHENYL -<br />

α-AMINOPHOSPHONIC MONOESTER<br />

Jianfeng Zhang, Zhiwei Miao, Zhanwei Cui and Ruyu Chen<br />

(State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic<br />

Chemistry, Nankai University, Tianjin 300071, China)<br />

α-Aminophosphonic and phosphinic acids are the phosphorous analogues of α-aminocarboxylic<br />

acids, and therefore have biological importance both in themselves and as building blocks for<br />

peptides [1] . They have acquired great attention in synthetic organic chemistry and a number of<br />

synthetic methods have been developed during past two decades. Of these methods, nucleophilic<br />

addition of phosphites to imines catalyzed by a base or an acid is the most convenient one. A<br />

variety of metal halides such as TiCl4 [2] , InCl3 [3] , TaCl5-SiO2 [4] , Mg(ClO4)2 [5] have been used as<br />

Lewis catalysts in methylene chloride or other organic solvent to promote this addition. To avoid<br />

these disadvantages of the use of organic solvents, a couple of modifications using montmorillonite<br />

clay [6] and alumina [7] in dry media under microwave irradiation have been reported. In 2002, Ranu [8]<br />

reported a more practical green alterative for the synthesis of α-aminophosphonates by a<br />

three-component condensation of carbonyl compounds (aldehydes and ketones), amines and diethyl<br />

phosphite at 75–80°C in neat without any solvent and catalyst. We would like to disclose a practical<br />

and green method for the synthesis of N-protected o-hydroxyl-phenyl-α-aminophosphonic<br />

monoester (Scheme 1).<br />

O<br />

H3CH2CO P<br />

H3CH2CO 1<br />

O<br />

NH + +<br />

2<br />

Cl<br />

R1 R2 2<br />

O<br />

P<br />

O<br />

3<br />

no catalyst<br />

solvent-free, r.t.<br />

Scheme 1<br />

H2O O<br />

H3CH2CO H<br />

P N<br />

H3CH2CO R1 4<br />

HO<br />

O<br />

P O<br />

OH<br />

R2<br />

4 R1 R2<br />

Yield (%)<br />

Tab. 1<br />

4 R1 R2<br />

Yield (%)<br />

4a p-Cl-C6H5 H 80 4f p-CH3O-C6H5 H 90<br />

4b o-Cl-C6H5 H 92 4g p-NO2-C6H5 H 93<br />

4c p-Br-C6H5 H 89 4h (CH2)5 84<br />

4d o-Br-C6H5 H 85 4i CH3 CH3 87<br />

4e C6H5 H 91<br />

Reference<br />

[1] Kukhar, V. P.; Hudson, H. R. Aminophonic and Aminophinic Acids Chemistry and Biological Activity. John<br />

206


P-44<br />

A NOVEL MECHANISM ABOUT THE CLEAVGE OF N-GLYCOSIDIC BOND IN<br />

ELECTROSPRAY IONIZATION TANDEM MASS SPECTRA OF NUCLEOTIDE<br />

Jihong Liu 1 , Shuxiao Cao 1 , Ruyi Zou 1 , Jiansha Lu 1 , Xincheng Liao 1 , Yufen Zhao 1,2*<br />

3. Key Laboratory of Chemical Biology and Organic Chemistry, Department of Chemistry, Zhengzhou University,<br />

Zhengzhou, 450052, P.R.China<br />

4. Key Laboratory for Bioorganic Phosphorus Chemistry of Ministry of Education, Department of Chemistry School<br />

of Life Sciences and Engineering, Tsinghua University, Beijing 100084, P.R.China<br />

ESI-MS/MS has become an important analytical tool for the analysis of nucleotide 、<br />

oligonucleotide and their derivatives 1 . Nucleotides are the basic unit of nucleic acid, so its<br />

fragmentation pathways in electrospray ionization tandem mass spectra will give some implication<br />

on the analysis of oligonucleotide using ESI-MS/MS. Nucleotides often gives the fragment<br />

originated from the cleavage of the N-glycosidic bond, and this cleavage was expressed that a new<br />

double bond generated in the sugar moiety 2,3 . However, when we used deuterium to substitute<br />

active hydrogene of nucleotide and study it by ESI mass spectrometry, we presented a new<br />

mechanism about the cleavge of the N-glycosidic bond. Instead of generating a double bond in<br />

sugar moiety, the novel mechanism is 5’-,3’-nucleotides produced cycle ions shown as figure1.<br />

Table 1 the ions of deuterated and non-deuterated nucleotides<br />

Sample name Precursor ions Fragment ions (M-Base)<br />

5’- or 3’- Nucleotide [Nucleotide-H] - 211<br />

Deuterium-labeled nucleotide [Deuterium-labeled nucleotide –H] - 213<br />

B<br />

O<br />

O<br />

H H<br />

H H<br />

OD OD<br />

P<br />

DO O<br />

O- B<br />

DO<br />

H<br />

O<br />

H<br />

H<br />

O<br />

H<br />

OD<br />

O<br />

P O<br />

OD<br />

-<br />

O<br />

P<br />

O<br />

D<br />

O O<br />

O<br />

H H<br />

H<br />

OD<br />

H<br />

OD<br />

DO<br />

H<br />

O H<br />

H<br />

H<br />

O OD<br />

O<br />

O<br />

P<br />

O D<br />

207<br />

B -<br />

BD<br />

B -<br />

BD<br />

-O O<br />

P<br />

O O<br />

O<br />

H H<br />

H H<br />

OD OD<br />

DO<br />

H<br />

O H<br />

H<br />

H<br />

O OD<br />

O<br />

O<br />

P<br />

- O<br />

Figure1 Proposed mechanism of the N-glycosidic bond cleavge<br />

Refference<br />

1.E. Nordhoff,F. Kirpekar. P. Roepstorff. Mass spectrometry Reviews, 1996, 15,67-138<br />

2.Petr Fryčák,Renata Hušková,Tomáš Adam etc.J. Mass Spectrom. 2002, 37:1242-1248<br />

3.Hongxia Liu,Canfang Zhao,Jiansha Lu etc. Analytica Chimica Acta, 2006, 566:99-108


P-45<br />

SYNTHESIS OF ISOPRENOID OLEFIN ISOMERS VIA PHOSPHONIUM AND<br />

PHOSPHORYL STABILIZED CARBANIONS<br />

José S. Yu and David F. Wiemer<br />

Department of Chemistry, University of Iowa, Iowa City, IA 52242, USA<br />

Correspondence to: david-wiemer@uiowa.edu<br />

To provide tools for studies of isoprene metabolism, the complete set of four farnesol<br />

stereoisomers (1-4) and a pair of geranylgeraniol isomers (5 and 6) have been synthesized using a<br />

variety of modified Wittig and Horner-Wadsworth-Emmons (HWE) reactions. The central issue in<br />

the synthesis of the (2Z)-trisubstituted alcohols 2, 3, and 6 was the formation of the (Z)-allylic<br />

alcohol. Past examples provided precedent for use of a modified Wittig reaction that involved a<br />

-oxido ylide derived from an aldehyde in the construction of disubstituted (Z)-allylic alcohols.<br />

This strategy was extended to -oxido ylides derived from the unsymmetrical ketones geranylacetone,<br />

nerylacetone or (5E,9E)-farnesylacetone to achieve the desired substitution pattern with good olefin<br />

stereoselectivity (Org. Lett. 2005, 7, 4803-4806). Use of the same set of ketones in modified<br />

HWE reactions, including the Still-Gennari and Ando strategies, provided the corresponding<br />

(Z)-α,β-unsaturated esters and these esters could be reduced to the (Z)-allylic alcohols. However,<br />

this approach afforded lower (Z)-selectivity than obtained through the -oxido ylides. In contrast,<br />

preparation of the isoprenoids 1, 4, and 5 was based on a classical HWE condensation with the<br />

same set of starting ketones, and afforded the desired (2E)-isomers with good stereocontrol. Both<br />

the (2Z)- and (2E)-isoprenoid alcohols were converted to the respective bisphosphonates and/or<br />

-hydroxyphosphonates for further biological studies.<br />

OH<br />

OH<br />

OH<br />

(2E,6E)-farnesol (1) (2Z,6E)-farnesol (2) (2Z,6Z)-farnesol (3) (2E,6Z)-farnesol (4) OH<br />

OH<br />

(2E,6E,10E)-geranylgeraniol (5) (2Z,6E,10E)-geranylgeraniol (6) OH<br />

208


P-52<br />

INVESTIGATION ON INTERACTION OF L-METHIONINE DIPEPTIDE WITH CT-DNA<br />

BY ULTRAVIOLET SPECTROSCOPY METHOD<br />

Kui Lu* 1 ,Rui Li 1 ,Li Ma 1 ,Yufen Zhao 2<br />

1.School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450052, China;<br />

2.Department of Chemistry, Xiamen University, Xiamen 361005, China<br />

Phosphorus plays an important role in the origin of life and regulate and control of life, our<br />

investigative group have study the peptide formation reactions with the assistance of<br />

abio-phosphorous compound [1] .In this paper, we let the same mol POCl3 and L-methionine react in<br />

the presence of tetrahydrofuran as solvent, produce more short-chain polypeptides through control<br />

the reaction conditions and finally get the L-methionine dipeptide by HPLC. The product's structure<br />

has been characterized by the means of 1H-NMR, 13C-NMR and ESI-MS. Because Several small<br />

molecules have been shown to interact with DNA at the molecular level by specific binding modes.<br />

These binding studies were driven partly by the need to understand the mechanism of anticancer<br />

drug action [2] , to decipher the chemical basis for the carcinogenicity of environmental pollutants and<br />

toxic chemicals [3] and to serve as analogues in studies of protein-nucleic acid recognition [4] . The<br />

interaction of L-methionine dipeptide with ct-DNA was studied by ultraviolet spectra. The results<br />

showed that L-methionine dipeptide could interact with phosphorous groups of ct-DNA which<br />

would affect the conformation of ct-DNA (Fig 1). In general, the longer the time of interaction of<br />

L-methionine dipeptide with ct-DNA was, the more bovious the hypochromic effect became. In<br />

addition, the influences of concentration, phosphateion and pH values on the interaction of<br />

L-methionine dipeptide and ct-DNA were also investigated.<br />

Acknowledgements: The authors would like to thank the financial supports from the Chinese<br />

National Science Foundation (No.20272055, 20572016), Henan Province Science Foundation for<br />

Prominent Youth (No.0312000900) and Office of Education of Henan Province (No.<br />

2006KYCX017, 200510459015).<br />

209


References:<br />

[1] Lu, K.; Liu, Y.; Zhou, N.; Chen, Y.; Feng, Y.-P. ; Guo, X.-F.; Chen, W.; Qu, L.-B.; Zhao, Y.-F. Acta Chim. Sinica<br />

2002, 60, 372 (in Chinese)<br />

[2] M.J. Waring, in: G.C.K. Roberts (Ed.), Drug Action at the Molecular Level, Macmillan, London, 1977, p. 167<br />

[3] M.A. Warpehoskj, L.H. Hurley, Chem. Res. Toxicol. 1 (1988) 313<br />

[4] D. Porschke, in: W. Guschlballer, W. Saenger (Eds.) DNA–Ligand Interactions Specificity and Dynamics of<br />

Protein–Nucleic Acid Interactions, Plenum, New York, 1986, p. 85<br />

210


P-61<br />

REMINERALIZATION EFFECTS OF HONEYSUCKLE FLOWER SOLUTION ON<br />

INITIAL ENAMEL CARIOUS LESIONS IN VITRO<br />

Linglin Zhang<br />

As we have known, 96 percent of dental enamel is the chemical substance of inorgance.<br />

Hydrosyapatite is the elemental structure units of enamel. Enamel also contains octacalcium<br />

phosphate, calcium phosphate dihydrate, dicalcium phosphate anhydrous, tricalcium phosphate, and<br />

amorphous calcium phosphate. In oral cavity, the process of enamel demineralization and<br />

remineralization is alterative. During this period, if demineralization plays predominant role, it will<br />

result in carious lesions on the enamel surface. on the other hand, if remineralization plays<br />

predominant role as a result of artifical method, initial carious lesions will be restored. In this<br />

experiment, the effects of Honeysuckle Flower on remineralization of initial enamel carious lesions<br />

were studied in vitro. This helps to make Honeysuckle Folwer as some kinds of natural anticarious<br />

drugs to treat the initial enamel cavious lesions.<br />

The labial enamel from crowns of the newly extracted fresh bovine incisors were made into<br />

enamel blocks in the same size. Then they were grounded and polished. Those blocks without<br />

calculus, pigments, lisions, fluoxic cachexia and cracks were chosen to be dipped in acid solution of<br />

PH 4.5. After 72 hours, the artificial early lesions emerged on the surface of labial enamel. Next, 30<br />

blocks of them with suface microhardness between 311.00 kHN and 315.00kHN entered the phae of<br />

remineralization.<br />

Using 50 g/L Honeysuckle Flower(group 1),1 g/L NaF(group 2) and deionized water(group 3) in<br />

the first step of PH-cycling respectively, 30 blocks were randomly divided into three groups. After<br />

12 times of pH-cycling, microhardness of enamel surface was measured on the labial enamel blocks,<br />

and the recovery percentage of it (% SMHR) was calculated.With X-ray EDS, weight percentage of<br />

Ca and P on the surface of remineralized enamel was measured. The morphology of remineralized<br />

enamel was observed by polarizing microscope. The result showed that microhardness of enamel<br />

surface in group 1and 2 increased obviously. Weight percentage ratio of Ca and P on the surface of<br />

enamel in group 3 was much less than the other two groups. The density of lesioned layer on the<br />

surface in group 1and 2 grew heavily obviously, and the thickness of it lessened. It can be<br />

concluded that Honeysuckle Flower can promote the remineralization of initial enamel carious<br />

lesions, so it can become a kind of new natural anticarious medicine.<br />

211


P-72<br />

SELF-ASSEMBLY OF L-GLUTAMINE INTO OLIGO-PEPTIDES MEDIATED BY<br />

PHOSPHRORIC CHLORIDE<br />

Li Ma, Ming-xiu Lü, Wei-na Cao, Kui Lu*<br />

School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450052, China<br />

Oligopeptides can act as drug or precursor of drug because of their strong bioactivity, which has<br />

gained significant attraction. Therefore, the synthesis of peptides became a research focus of<br />

organic synthesis [1] . Even though there are lots of papers about peptide synthesis related to the<br />

chemical evolution of life, there is litter investigation on the intrinsic relationship between the<br />

phosphorus and amino acids [2] .<br />

In this paper, the self-assembly reactions of L-glutamine with phosphroric chloride were studied<br />

by using electrospray ionization mass spectrometry (ESI-MS). On quenching with water, the<br />

reaction mixtures, which were produced under different reaction conditions, yielded the<br />

corresponding peptides. Influence of the reaction conditions such as reaction time, solvent, and<br />

temperature on self-assembly into oligo-peptides for L-glutamine were monitored. The reactions are<br />

shown in scheme 1.<br />

H<br />

H<br />

N<br />

O<br />

H<br />

C C<br />

CH 2<br />

CH 2<br />

C<br />

NH 2<br />

O<br />

OH<br />

PCl 5<br />

Scheme 1 Self-assembly of L-glutamine into oligo-peptides mediated by phosphroric chloride<br />

In conclusion, the proper condition of direct synthesis was reaction time of 4h, in the solvent of<br />

acetonitrile and temperature of 50 ℃ . A series of mass peaks corresponding to oligo-peptides<br />

of<br />

L-Gln were observed by electrospray ionization mass spectrometry (ESI-MS). The dipeptide<br />

(m/z=275) and the cyclotripeptide (m/z=385) were the main compounds in the reaction mixtures.<br />

Acknowledgements<br />

The authors would like to thank the financial supports from the Chinese National Science<br />

Foundation (No.20272055, 20572016), Henan Province Science Foundation for Prominent Youth<br />

(No.0312000900) and Office of Education of Henan Province (No. 2006KYCX017).<br />

References<br />

[1] N. Zhou, K. Lu, Y. Liu, Y. Chen, G. Tang, S.-X. Cao, L.-B. Qu, Y.-F. Zhao. Rapid Commun Mass Sp 2002,16 (8):<br />

790<br />

[2] N. Zhou, K. Lu, Y. Liu, et al, The abstracts of the 13 th international conference on the origin of life, 2002, P87<br />

212<br />

H 2O<br />

H<br />

H<br />

N<br />

O<br />

H<br />

C C OH<br />

n<br />

CH 2<br />

CH 2<br />

C<br />

NH 2<br />

O


P-74<br />

SYNTHESIS AND BIOLOGICAL ACTIVITY OF α-HYDROXYPHOSPHONATES<br />

Na Zuo and Hong-Wu He*<br />

Key Laboratory of Pesticide and Chemical Biology of Ministry of Education<br />

College of Chemistry Central China Normal University, Wuhan 430079, P. R. China<br />

Several α- hydroxyphosphonates have been prepared by the Pudovik reaction. 5,5- dimethyl -4phenyl<br />

-1,3,2- dioxaphosphinan -2- one reacts with aldehyde to form the title compounds in good<br />

yields(80-90%). Triethylamine is added as catalyst .The best reaction time is 2-3 hours and the<br />

temperature is 25℃. All 10 of compounds were confirmed by 1 HNMR, IR and element analysis,<br />

and one was examined by the single crystal X-ray diffraction. The results of preliminary bioassay<br />

indicated that the title compounds exhibited a certain herbicidal activities.<br />

CHO + PhCHO<br />

PCl3<br />

EtOH<br />

Ph<br />

2<br />

O O<br />

PH<br />

O<br />

213<br />

Ph<br />

KOH<br />

OH<br />

EtOH OH<br />

RCHO<br />

Et3N Ph<br />

R= alkyl, Ph, substituted Ph, Furyl<br />

1<br />

HO<br />

O R<br />

O P<br />

O<br />

Acknowledgments<br />

Financial support by National Basic Research Program of China (2003CB114400) and NNSFof<br />

China ( 20372023)<br />

REFERENCES<br />

Meier, C. Angew. Chem. Int. Ed. Engl. 35, 70 (1996)<br />

Shi, D. Q.; Wei, J. and Tan, X. S., Chin. J. Org. Chem. 12, 1602 (2005)<br />

He, H. W.; Wang, T. and Yuan, J. L. J. Organomet. Chem. 690, 2608 (2005)<br />

Sudha K.; Senthamizh S. R. and Kumara S. K. C. Synthesis. 2, 207(1997)<br />

3


P-85<br />

BIO-RELEVANT DERIVATIVES OF CALIXARENE PHOSPHONIC ACIDS<br />

S.Cherenok a , A.Vovk b , I.Muravyova b , A.Marcinowicz c , J.Poznanski c , O. Muzychka b , V.Kukhar b , W.Zielenkiewicz c ,<br />

V.Kalchenko a<br />

a Institute of Organic Chemistry, NAS of Ukraine, 02660, Kyiv-94, Ukraine<br />

b Institute of Bioorganic Chemistry and Petrochemistry, NAS of Ukraine, 02660, Kyiv-94, Ukraine<br />

c Institute of Physical Chemistry, Polish Academy of Sciences, 01-224, Warsaw, Poland<br />

Calixarenes endowed with aminoacid or peptide units demonstrate a high bio-activity [1]. Within<br />

the project we have synthesized and investigated a series of the cone-shaped calix[4]arenes<br />

functionalysed at the macrocyclic upper rim with bio-relevant α- hydroxyphosphonic or<br />

α-aminophosphonic or methylenebisphosphonic acid groups [2-4].<br />

Complexation of calix[4]arene bis-α-hydroxyphosphonic acids (Racemic or Meso forms) with a<br />

series of natural amino acids and dipeptides was investigated by calorimetry, NMR and molecular<br />

modelling methods [3]. The association constants of the host-guest complexes in methanol (up to<br />

45000 M-1) were determined. Hydrophobic, electrostatic, N-H-π, C-H-π interactions in the<br />

host-guest complexes are discussed.<br />

Calix[4]arenes grafted with the α-hydroxyphosphonic or α-aminophosphonic or<br />

methylene-bis-phosphonic acid groups significantly overcome modelling acyclic phosphonic acids<br />

in inhibition of bovine intestinal and porcine kidney alkaline phosphatases [2, 4]. In Tris-HCl buffer<br />

(pH 9) the (R,R) diastereomer of calixarene bis-α-aminophosphonic acid demonstrates 50 fold<br />

higher potency than the (S,S) diastereomer [4].<br />

References:<br />

[1] A.Casnati, F. Sansone, R.Ungaro. Acc. Chem. Res. 2003. 36. 246-254.<br />

[2] A.I. Vovk, V.I. Kalchenko, S.O. Cherenok, V.P. Kukhar, O.V. Muzychka, M.O. Lozynsky. Org. Biomol. Chem.<br />

2004. 2. 3162-3166.<br />

[3] W. Zielenkiewicz, A. Marcinowicz, S. Cherenok, V. Kalchenko, J. Poznański. Supramolecular Chemistry. 2006. 18.<br />

167-176.<br />

[4] S. Cherenok, A.Vovk, I. Muravyova, A. Shivanyuk, V. Kukhar, J. Lipkowski, V. Kalchenko. Organic Letters. 2006.<br />

8. 549-552.<br />

214


P-123<br />

EFFECTS OF PHOSPHORYLATION ON THE CONFORMATION<br />

OF PEPTIDE AND PROTEIN<br />

Yan-Mei Li, Yu-Fen Zhao<br />

Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of<br />

Chemistry, Tsinghua University, Beijing 100084<br />

The regulation of biochemical activity by protein post-translational modifications is a pervasive<br />

cellular control mechanism. Protein phosphorylation is a key posttranslational modification<br />

mechanism controlling the conformation and activity of many proteins. Through the use of<br />

phosphorylation cycles and cascades, the cell is able to regulate a diverse set of processes, including<br />

cellular movement, reproduction and metabolism. It is the simplicity, reversibility and flexibility of<br />

phosphorylation that explains why it has been adopted as the most general control mechanism of the<br />

cell. The use of the phosphorylation/dephosphorylation of a protein as a control mechanism has<br />

many advantages: rapid, taking as little as a few seconds, no require new proteins to be made or<br />

degraded and easily reversible.<br />

With regard to its regulatory mechanism, it is of fundamental importance to study the role and<br />

function in protein networks by phosphorylation. Increasing evidence has implicated an essential<br />

role of phosphorylation by activating α-COOH to form amide bond in peptide synthesis, increasing<br />

the cis content of the peptidyl-propyl amide bond, causing local structure more ordered, regulating<br />

intrisically disorder domain, and effecting the protein distribution in cell. Phosphate acts as the<br />

molecular switch to modulate protein networks.<br />

Reference<br />

[1] Chen YX, Du JT, Zhou LX, Li YM*, et al. Alternative O-GlcNAcylation/ O-Phosphorylation of Ser16 Induce<br />

Different Conformational Disturbances to the NTesrminus of Murine Estrogen Receptor β. Chem. Biol. 2006, 13:<br />

937-944.<br />

[2] Du JT, Li YM*, Wei W, et al. Low Barrier Hydrogen Bond Between Phosphate and Amide Group in Phosphopeptide.<br />

J. Am. Chem. Soc. 2005, 127: 16350-16351.<br />

[3] Du JT, Li YM*, Ma QF, et al. Synthesis and Conformational Properties of Phosphopeptides Related to the Human<br />

Tau Protein. Regul. Pept. 2005, 130: 48-56.<br />

[4] Schlummer S, Vetter R, Kuder N, Chen YX, Li YM, et al. Influence of Serine O-Glycosylation or O-Phoshorylation<br />

Close to the vJun Nuclear Localisation Sequence on Nuclear Import. ChemBioChem 2006, 7: 88-97.<br />

[5] Chen ZZ, Tan B, Li YM*, et al. Activity Difference between α-COOH and β-COOH in N-Phosphoryl Aspartic Acids.<br />

J. Org. Chem. 2003, 68: 4052-4058.<br />

[6] Chen ZZ, Li YM*, Wang HY, et al. Theoretical Study on the Rearrangement of β-OH and γ-OH in ESI Mass<br />

Spectrometry by N-phosphorylation. J. Phys. Chem. A 2004, 108: 7686-7690.<br />

215


P-124<br />

SYNTHESIS AND PURIFICATION OF L-HYDROXYPROLINE OLIGO-PEPTIDES<br />

ASSISTED BY PHOSPHORUS OXYCHLORIDE<br />

Yan-ting Sun, Ye-zhen Feng, Kui Lu*<br />

School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450052, China<br />

We have demonstrated that α-amino acids could be assembled into oligo-peptides with the<br />

assistance of inorganic phosphorus [1] . Similar results were obtained in the reaction of<br />

L-Hydroxyproline(L-Hypo) and phosphorus oxychloride. To find the best experimental condition,<br />

the solvent, reaction time, reaction temperature, the molar ratio of L-Hypo and POCl3 were<br />

examined. The results obtained suggested that the proper condition of direct synthesis was the<br />

molar ratio of L-Hypo and POCl3 of 1 to 1, reaction temperature of 20 ℃ , reaction time of 2h and in<br />

acetonitrile as solvent. A series of mass peaks corresponding to oligo-peptides of L-Hypo were<br />

observed by electrospray ionization mass spectrometry (ESI-MS) and multistage electrospray<br />

ionization mass spectrometry (ESI-MS/MS).The dipeptide Hypo-Hypo (m/z=245), tripeptide<br />

Hypo-Hypo-Hypo(m/z=358), as well as cyclo-dipeptide cyclo-Hypo-Hypo (m/z=227) were purified<br />

by reversed phase high-performance liquid chromatography(RPLC). This approach may provide a<br />

sound basis for developing new technologies of peptides synthesis of practical use.<br />

Figure 1 RPLC of the reaction mixtures<br />

This work was financial supported by National Nature Science Foundation of China<br />

(No.20272055, 20572016) , Henan Province Science Foundation for Prominent Youth<br />

(No.0312000900) and Office of Education of Henan Province (No. 2006KYCX017).<br />

References<br />

[1] Lu, K.; Liu, Y.; Zhou, N.; Chen, Y.; Feng, Y.-P. ; Guo, X.-F.; Chen, W.; Qu, L.-B.; Zhao, Y.-F. Acta Chim. Sinica<br />

2002,60,372 (in Chinese).<br />

216


P-125<br />

SELF-ASSEMBLY OF L-GLUTAMINE INTO OLIGO-PEPTIDES MEDIATED BY<br />

PHOSPHRORIC CHLORIDE<br />

Li Ma, Ming-xiu Lü, Wei-na Cao, Kui Lu*<br />

School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450052, China<br />

Oligopeptides can act as drug or precursor of drug because of their strong bioactivity, which has<br />

gained significant attraction. Therefore, the synthesis of peptides became a research focus of<br />

organic synthesis [1] . Even though there are lots of papers about peptide synthesis related to the<br />

chemical evolution of life, there is litter investigation on the intrinsic relationship between the<br />

phosphorus and amino acids [2] .<br />

In this paper, the self-assembly reactions of L-glutamine with phosphroric chloride were studied<br />

by using electrospray ionization mass spectrometry (ESI-MS). On quenching with water, the<br />

reaction mixtures, which were produced under different reaction conditions, yielded the<br />

corresponding peptides. Influence of the reaction conditions such as reaction time, solvent, and<br />

temperature on self-assembly into oligo-peptides for L-glutamine were monitored. The reactions are<br />

shown in scheme 1.<br />

H<br />

H<br />

N<br />

O<br />

H<br />

C C<br />

CH 2<br />

CH 2<br />

C<br />

NH 2<br />

O<br />

OH<br />

PCl 5<br />

Scheme 1 Self-assembly of L-glutamine into oligo-peptides mediated by phosphroric chloride<br />

In conclusion, the proper condition of direct synthesis was reaction time of 4h, in the solvent of<br />

acetonitrile and temperature of 50 ℃ . A series of mass peaks corresponding to oligo-peptides<br />

of<br />

L-Gln were observed by electrospray ionization mass spectrometry (ESI-MS). The dipeptide<br />

(m/z=275) and the cyclotripeptide (m/z=385) were the main compounds in the reaction mixtures.<br />

Acknowledgements: The authors would like to thank the financial supports from the Chinese<br />

National Science Foundation (No.20272055, 20572016), Henan Province Science Foundation for<br />

Prominent Youth (No.0312000900) and Office of Education of Henan Province (No.<br />

2006KYCX017).<br />

References:<br />

[1] N. Zhou, K. Lu, Y. Liu, Y. Chen, G. Tang, S.-X. Cao, L.-B. Qu, Y.-F. Zhao. Rapid Commun Mass Sp 2002,16 (8):<br />

790<br />

[2] N. Zhou, K. Lu, Y. Liu, et al, The abstracts of the 13 th international conference on the origin of life, 2002, P87<br />

H 2O<br />

217<br />

H<br />

H<br />

N<br />

O<br />

H<br />

C C<br />

CH 2<br />

CH 2<br />

C<br />

NH 2<br />

O<br />

OH<br />

n


P-135<br />

DESIGN AND SYNTHESIS OF 5’-FLUORESCENTLY LABELED NUCLEOSIDES<br />

Zheng Jinyun*; Zhang Shufeng,Zhao Yufen<br />

Department of chemistry, Zhengzhou university, Zhengzhou, 450052 P.R. China<br />

The application of fluorescence methods to macromolecules study has been a dramatic surge in<br />

the last few years by providing useful information concerning structure, distance, orientation,<br />

complexation and location of biomolecules. Fluorescence spectroscopy provides an important tool<br />

for the detection and probing of structure, dynamics and interactions of nucleic acid with relating<br />

compounds. Many fluorescent nucleosides has been used as site-spectific probes for structure and<br />

dynamic of nucleic acids studies. The fluorescent nucleosides are valuable as sensitive reporter<br />

probes for detecting the change of the microenviroment in DNA.<br />

In this paper, the fluorophore group such as carbazole, anthracene, and coumarin was introduced<br />

to the 5’ terminus of the nucleoside(Fig1) by using the nucleoside hydrogen phosphonate diester<br />

through reacting protected nucleoside with PCl3; followed by alcoholysis with corresponding<br />

alcohol; protected nucleoside hydrogen phosphonate derivatives are obtained in reasonable yields.<br />

If the mixture of primary alcohol and t-butanol(1:1) is used as alcoholysis agent, the<br />

o-n-alkyl-5-H-phosphonate is generated when the primary alcohol has different fluorophore group.<br />

A range of 5’-fluorescently lablled nucleosides were synthesized. The 5’-N-alkyl-carbazole<br />

lablled nucleoside was synthesized and characterized by HNMR.ESI-MS, and fluorescence<br />

spectroscopy. A lot of information associated with the structure and function of biomacromolecules<br />

can be obtained by analyzing the fluctuation of fluorescence intensity and polarization.<br />

LO<br />

O<br />

P<br />

H<br />

O<br />

218<br />

B<br />

O<br />

O O<br />

L=fluorophore<br />

B=uracil,Guanine


P-140<br />

MICROWAVE-ASSISTED SYNTHESES OF 2',3'-O-ISOPROPYLIDENE<br />

RIBONUCLEOSIDE 5'-MONOPHOSPHATES<br />

Z. Wang, Y.F. Zhao*<br />

The Key Laboratory of Bioorganic Phosphorus Chemistry, Ministry of Education, Department of Chemistry, School of<br />

Life Sciences and Engineering, Tsinghua University, Beijing 100084. E-mail:zhaofy@tsinghua.edu.cn<br />

Phosphate monoesters are some of the most important substances in medicina l chemistry,<br />

materials chemistry, and so on. 1Many methods for preparing Nucleoside 5’-monophosphates have<br />

been reported. 2 The application of microwaves, as an efficient heating source for organic<br />

reactions , was recognized in the 1986. 3 Since then, numerous successful reactions with<br />

dramatically enhanced reaction rates have been disclosed. 4-6 Very high yields and clean reactions<br />

have been obtained using only small amounts of energy. We synthesize 5’-monophosphate of<br />

ribonucleosides without the protection of amino groups of nucleobases. Since secondary hydroxy<br />

groups of ribonucleosides also react with phosphoric acid, 2',3'-O-isopropylidene ribonucleosides<br />

were used as substrates. The reactions of 2',3'-O-isopropylidene uridine (1), adenosine (2), cytidine<br />

(3), and guanosine (4) with 2 equiv of phosphoric acid in the presence of tributylamine and<br />

N-alkylimidazole, which is promoted by microwave irradiation in 500W, gave their<br />

5'-monophosphates selectively in respective yields of 86, 86,71, and 83%. In contrast, that same<br />

yields were obtained in Dehydrative Condensation reactions performed under microwave irradiation<br />

can be completed within 4-5 min whereas 6-8 h is required with conventional heating. It is also<br />

likely that the widespread acceptance of this technique, as an important tool for the development of<br />

laboratory-scale environmentally conscious chemistry, will result in microwave synthesizer<br />

becoming an integral part of every modern organic laboratory.<br />

Reference<br />

[1] Hayakawa, Y. Comprehensive Organic Synthesis; Trost, B. M., Fleming, I., Winterfeldt, E., Eds.; Pergamon:Oxford,<br />

1991, 6, 601-630.<br />

[2] Sakakura, A.; Katsukawa, M.; Ishihara, K. Selective Synthesis of Phosphate Monoesters by Dehydrative<br />

219


Condensation of Phosphoric Acid and Alcohols Promoted by Nucleophilic Bases. Org. Lett. 2005, 7, 1999-2002.<br />

[3] Gedye, R. et al. The use of microwave ovens for rapid organic synthesis. Tetrahedron Lett. 1986, 27, 279–282<br />

[4] Larhed, M.; Hallberg, A. Microwave-Assisted High-Speed Chemistry: A New Technique in Drug Discovery. Drug<br />

Discovery Today. 2001, 6, 406-416.<br />

[5] Strauss, C. R.; Trainor, R. W. Invited Review-Developments in Microwave-Assisted Organic-Chemistry. Aust. J.<br />

Chem. 1995, 48,1665-1692.<br />

[6] Elander, N.; Jones, J. R.; Lu, S. Y.; Stone-Elander, S. Microwave-Enhanced Radiochemistry. Chem. Soc. Rev. 2000,<br />

29,239-250.<br />

220


P-141<br />

THE CORRELATION BETWEEN THE ESTIMATED PARTITION COEFFICIENT P<br />

AND CAPACITY FACTOR K OF AMINO ACIDS AND PHOSPHORYL AMINO ACIDS<br />

Hongxia Liu, Canfang Zhao, Mian Liu, Yuyang Jiang*, Yufen Zhao<br />

The Key Laboratory of Chemical Biology, Guangdong Province, Graduate School at Shenzhen, Tsinghua University,<br />

Shenzhen 518055, P.R.China<br />

The modifications of amino acids(aas) by phosphorylation, methylation, acetylation and<br />

glycosylation play a key role in the regulation of the activities of proteins and peptides. In our group,<br />

various N-(O, O-Diisopropyl) phosphoryl amino acids (Dipp-aas) were synthesized by<br />

N-phosphoryl of amino acids with diisopropyl phosphite. For further investigation on the<br />

bioavailability and pharmacokinetics of these compounds, we have also developed a practical<br />

HPLC method with an NH2 column to analyse the stability of these Dipp-aas in different solution.<br />

In this work, we observed the linear relationships between the estimated logarithm of partition<br />

coefficient (n-octanol/water, Log P) and the logarithm of capacity factor (Log k) of Dipp-aas and<br />

aas. The results showed that the correlation equations of Log P-Log k for dipp-aas was Log P<br />

=6.3742 Log k +0.8615 (r2=0.9745) and for aas was Log P =-Log k-3.3147(r2=0.8052),<br />

respectively. The diversity of slopes revealed that the separation mechanism of dipp-aas and aas<br />

on NH2 column was very different. It implied that separation of Dipp-aas was likely based on the<br />

reversed-phase partition mechanism, but for aas it was based on a weak ion-exchange mechanism.<br />

The correlation equation of Log P-Log k could be applied to predict the retention times and to<br />

optimize HPLC separation conditions of other N-(O,O-diisopropyl) phosphoryl amino acids and<br />

peptides.<br />

Acknowledgments<br />

This work was supported by the National Natural Science Foundation of China (No. 20472043, 20572060, 20672068),<br />

Mega-Project of Science Research of Ministry of Science and Technology of China (No.2005CCA03400) and the<br />

Project of Science and Technology of Guangdong Province ( 2005A11601008, 06028200).<br />

221


P-148<br />

SYNTHESIS Of α, β-DIFLUOROMETHYLENEBISPHOSPHONATE ANALOGS OF<br />

dNTPs: PROBES FOR DNA POLYMERASE β<br />

Thomas G. Upton 1 , Boris A. Kashemirov 1 , Charles E. McKenna 1 ,*, Myron F. Goodman 1 , G. K. Surya Prakash 1 , Roman<br />

Kultyshev 1 , Vinod K. Batra 2 , David D. Shock 2 , Lars C. Pedersen 2 , William A. Beard 2 , and Samuel H. Wilson 2<br />

1 Department of Chemistry, University of Southern California, Los Angeles, CA 90089 USA<br />

2 Laboratory of Structural Biology, NIEHS, Research Triangle Park, NC 27709 USA<br />

In an ongoing study of the mechanisms underlying DNA polymerase β catalysis and fidelity we<br />

have synthesized the dTPP, dATP and dCTP α, β-difluoromethylene analogs (1, 2, and 3,<br />

respectively). These analogs cannot be cleaved by the enzyme due to their hydrolysis-resistant<br />

Pα-C-Pβ group, replacing the phosphoric anhydride in the natural nucleotides. The dT and dA<br />

nucleotide analogs 1 and 2 were previously synthesized by Blackburn et al. by reaction of the<br />

corresponding dNMP 5’-tosylates 4, 5 with difluoromethylenebisphosphonate 6 followed by<br />

coupling of the resultant dNDP analogs with p-NO2Bn phosphoric acid morpholidate and<br />

deprotection by hydrogenolysis on Pd, which last step, however, is problematic with dC. We report<br />

a convenient method for synthesis of 3, which can also be used to prepare purine nucleotide analogs<br />

such as 2, in which the bisphosphonate nucleotide intermediate is phosphorylated enzymatically in<br />

excellent yield using a catalytic amount of ATP together with excess PEP in HEPES buffer using a<br />

mixture of PK and NDPK. Two-stage purification employing ion-exchange, then RP preparative<br />

HPLC afforded the nucleotide analogs in exceptional purity, as determined by standard NMR,<br />

HPLC and MS analysis, with suppression of the background primer extension activity that may be<br />

observed with less pure preparations. The structure of the dT CF2 analog in a ternary complex with<br />

pol β, primer and template and relevant enzyme inhibition data are discussed in an assessment of<br />

α,β nucleotide analog binding to the active site.<br />

222


O-167<br />

SYNTHESIS OF BICYCLIC FUROPYRIMIDINE DEOXYNUCLEOSIDES<br />

CONJUGATED WITH N-DIISOPROPYLPHOSPHORYL AMINO ACIDS<br />

Qiang Xiao A *, Xuanye Jin B , Weihong Xiao A , Yong Ju B<br />

aJiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013,<br />

P. R. China<br />

bKey Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Ministry of Education, Department of<br />

Chemistry, Tsinghua University, Beijing 100084, P. R. China<br />

The bicyclic furo[2,3-d]pyrimidine nucleosides represent an entirely new class of fused furo<br />

pyrimidine derivatives with highly selectivity for varicella-zoster virus (VZV). Although the precise<br />

action mechanism of these analogues remains to be elucidated, it is clear that their antiviral activity<br />

depending on the VZV-encoded thymidine kinase phosphorylation. In our project for developing<br />

anti-VZV drugs, a series of 6-subsitituted furo[2,3-d]pyrimidine nucleosides conjugated with<br />

N-diisopropylphosphoryl amino acids were synthesized (Scheme 1).<br />

DMTO<br />

d<br />

HN<br />

O<br />

O N<br />

O<br />

OH<br />

1<br />

DMTO<br />

I<br />

a<br />

N<br />

O N<br />

O<br />

HO<br />

4<br />

DMTO<br />

O<br />

O<br />

HN<br />

O N<br />

O<br />

HO<br />

NH 2<br />

2<br />

HO<br />

O<br />

NH<br />

R<br />

O P O<br />

O<br />

5a-e<br />

O<br />

223<br />

N<br />

O<br />

e<br />

c<br />

HO<br />

DMTO<br />

N<br />

O N<br />

O<br />

HO<br />

O<br />

HN<br />

O<br />

O N<br />

O<br />

HO<br />

6a-e<br />

3<br />

NH<br />

O<br />

6a R= CH 3;6bR=PhCH 2<br />

6c R= Isopropyl; 6d R= Pro-<br />

Scheme 1. Synthesis of bicyclic furopyrimidine deoxynucleosides 6a-e<br />

References<br />

1. McGuigan, C.; Yarnold, C. J.; Jones, G. et al J. Med. Chem.1999, 42, 4479-4484.<br />

2. Cheng CM, Liu XH, Zhao YF, et al. Origin Life Evol. Bio. 2004, 34, 455-464.<br />

O<br />

NH<br />

P<br />

O<br />

R<br />

O<br />

NH 2


P-168<br />

EFFECTS OF CHRYSIN AND ITS TETRAETHYL BIS-PHOSPHORIC<br />

ESTER IN THE CELL CYCLE AND P 21/WAF1 PROTEINS OF THE HUMAN<br />

CERVICAL CARCINOMA CELL LINE HELA<br />

Ting Zhang 1,2 , Xiaolan Chen 1 , Lingbo Qu 1 , Manji Sun 2 , Yufen Zhao 3<br />

1. Key Laboratory of Chemical Biology, Department of Chemistry, Zhengzhou University, Zhengzhou, 450052<br />

2. Institute of Toxicology and Medicine, Academy of Military Medical Sciences, Beijing 100850, China<br />

3.The Key Laboratory for Bioorganic Phosphorus Chemistry, Department of Chemistry School of Life Sciences and<br />

Engineering, Tsinghua University, Beijing 100084<br />

Abstract Aim: To investigate the influences of CR/CP on the cell cycle and p 21WAF1 expression<br />

in the human cervical carcinoma cell line (Hela). Methods: human cervical carcinoma cell line<br />

(Hela) was treated with 10μM CR and CP respectively , the cell cycle and p 21WAF1 expression was<br />

determined with flow cytometry (FCM) and western immunobloting methods. Results: The cell<br />

cycle distribution and p 21WAF1 expression in the Hela cells treated with CR/CP were changed<br />

markedly as compared to vehicle-treated Control. The CR treatment resulted in an appreciable<br />

increase in the G0/G1 phase cell population and a decrease in the S phase cell populations,<br />

accompanied by up-regulation of p 21WAF1 expression. The CP could increase both in the G0/G1<br />

phase and G2/M phase cell populations, and induce p 21/WAF1 expression. Conclusion: CP could<br />

arrest cell cycle in both G0/G1 and G2/M phases accompanied with up-regulation p 21/WAF1<br />

expression, whereas CR only arrest G0/G1 phase cell cycle and induct p 21/WAF1 in Hela cells. This<br />

indicated that the CR and CP could arrest cell cycle of Hela cells in different ways.<br />

224


P-170<br />

THE PEPTIDE BOND FORMATION REACTION WITH PEPTIDES AND PROTEINS IN<br />

AQUEOUS SOLUTION BY INDUCEMENT OF N-PHOSPHORYL α-AMINO ACIDS<br />

Jia Ning Wang a, b , Yan Liu a , Dacheng He b , a<br />

, Yu-Fen Zhao*<br />

a. The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, Xiamen University,<br />

Xiamen, 361005, P. R. China<br />

b. The Key Laboratory for Cell Proliferation and Regulation Biology of Ministry of Education, College of Life Science,<br />

Beijing Normal University, Beijing 100875, P. R. China<br />

Jia Ning Wang: Tel: 13391726204; E-mail address: spaceman_jia@126.com<br />

In the work described in this paper, it was found that N-phosphoryl α-amino acids played an<br />

important role in the formation of long-peptides and proteins in aqueous solution under mild<br />

conditions (37℃) by mean of mass spectrometry.<br />

Due to the inducement of N-phosphoryl α-amino acids such as<br />

N-(O,O’-diisopropyl)phospho-L-α-alanine (abbr:N-DIPP-L-α-Ala), some different length peptides<br />

or proteins, such as GHRF(29 amino acid residues) and cytochrome c(104 amino acid residues),<br />

were added one amino acid residue to its N-terminal amino group in aqueous solution, respectively.<br />

The deconvoluted mass spectrogram showed that an additional increased MW of original<br />

peptide/protein could be detected. The mass difference of m/z of original peptide/protein and newly<br />

produced peak is almost the mass number of alanine residue (Mw: 71.1), if the added N-phosphoryl<br />

α-amino acid is N-DIPP-L-α-Ala. The relative intensity of m/z at M+71 which corresponding one<br />

alanine residue added to peptide/protein would increase when extended the incubation time of<br />

N-DIPP-L-α-Ala with peptide/protein.<br />

The strict proof and features of this peptide bond formation reaction was investigated through<br />

ESI-MS/MS by using different phosphoryl amino acids incubate with various modified and<br />

unmodified synthetic peptides such as Ala-Gln. The results showed that whenever a kind of<br />

N-DIPP-α-Amino acids was added to incubate with Ala-Gln. The resulting tripeptides would be<br />

detected and described as X-Ala-Gln. X represented amino acid residue from N-DIPP-α-Amino<br />

acid as reactant. This experiment results indicate that the addition of mass near 71.1Da represented<br />

alanine residue, and the added amino acid residue rooted in N-phosphoryl α-amino acid. The results<br />

of further incubation experiments by using modified peptides which N-terminal amino group was<br />

blocked but side chain native amino group was unchanged, showed that only α-amino<br />

group(N-terminal amino group) of peptides can be involved in the peptide bond formation reaction.<br />

In this study, two non-α-amino acids, N-DIPP-β-Ala and O-DIPP-α-Ser, were chosen to incubate<br />

with Ala-Gln in aqueous solution at the same condition respectively. The mass spectrum results<br />

showed that no peek indicating any peptides formed even incubated for 17 days. Considering the<br />

structure of natural α-amino acids and the intermediate described before, any non-natural amino<br />

acids, which structurally cannot form five membered ring cyclic penta-coordinate<br />

phosphoric-carboxylic mixed anhydride may not be able to form peptides[1]. The corresponding<br />

mechanism of the peptide bond formation reaction has been speculated that the five-membered ring<br />

penta-coordinate phosphoric intermediate may be involved in the process[2,3]. This mechanism<br />

suggested that why nature chose α-amino acids as primary blocks of protein.<br />

225


References<br />

[1] Jiang Y, Tan B, Chen ZZ, et al. Phosphoryl group differentiating alpha-amino acids from beta- and gamma-amino<br />

acids in prebiotic peptide formation. Int. J. Quant. Chem 2003 94 : 232-241<br />

[2] Fu H, Li Z L, Zhao Y F, et al. Oligomerization of N,O-bis(trimethylsilyl)-alpha-amino-acids into peptides mediated<br />

by o-phenylene phosphorochloridate. J. Am. Chem. Soc., 1999, 121: 291-295<br />

[3] Fu H, Tu G Z, Li Z L et al. New and efficient approach to eht synthesis of penta-coordinate spirobicyclic<br />

phosphoranes. J. Chem. Soc., Perkin Trans., 1997, 1:2021-2022<br />

226


P-172<br />

THE SYNTHESIS AND RESOLUTION OF THE OPTICLE ACTIVE DERIVATIVES OF<br />

N-THIOPHOSPHORAMIDATE DERIVATIVES<br />

Anfu Hu, Peng Liu , Pengxiang Xu ,Yufen Zhao*<br />

Department of Chemistry and The Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and<br />

Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China.<br />

Introduced by Eckstein, phosphorothioate analogues of nucleotides have become an<br />

indispensable tool for studying the metabolism of nucleic acids. [1] However, the enzymatic synthesis<br />

of stereodefined oligo(deoxyribonucleoside phosphorothioate)s (PS-Oligos) is limited to the<br />

preparation of (all-Rp)-oligomers because of the stereoselectivity of available DNA and RNA<br />

polymerases. Stereodefined PS-Oligos were used for studying the mode of action of several<br />

bacterial and human enzymes [2] , and the stereodependent avidity of PS-Oligos toward<br />

complementary DNA or RNA. [3] So obtaining a pure diastereoisomer is very important.<br />

In this article, we report a convenient and efficient approach for the synthesis of<br />

N-thiophosphoramidate derivatives of nucleosides (1 and 2), depicted in Scheme 1, with total yield<br />

70-80%. The diastereoisomeric mixtures(1:1 ratio) were isolated by silica gel chromatography.<br />

R<br />

O<br />

P<br />

Cl<br />

Cl Cl<br />

P<br />

O<br />

P<br />

Cl<br />

R<br />

O<br />

or<br />

Cl<br />

O<br />

O N<br />

O O<br />

+<br />

O<br />

NH<br />

O<br />

O<br />

NH<br />

O N<br />

O<br />

HO<br />

HO<br />

O<br />

or<br />

O N<br />

O<br />

O N<br />

O<br />

NH<br />

O<br />

O<br />

NH<br />

O<br />

-5℃ CH 2Cl 2<br />

3h<br />

NH 2CHR'CHOOCH 3 S powder<br />

R.T. overnight<br />

227<br />

Cl<br />

P<br />

Cl<br />

Cl<br />

P<br />

Cl<br />

O<br />

O<br />

O<br />

NH<br />

O N<br />

O<br />

O O<br />

or<br />

O N<br />

O N<br />

R S<br />

O P O<br />

HN<br />

R'<br />

O<br />

O O O<br />

or<br />

R S<br />

O P O<br />

HN<br />

R'<br />

O<br />

O<br />

O N<br />

O<br />

NH<br />

O<br />

O<br />

NH<br />

O<br />

O<br />

NH<br />

O<br />

ROH Et 3N -40℃<br />

CH 2Cl 2 0.5h<br />

SCHEME 1. Synthesis of N-thiophosphoramidate derivatives<br />

1<br />

2<br />

R= CH 3 1a<br />

CH 3CH 2 1b<br />

CH 2Ph<br />

1c<br />

1d<br />

R'=H 2a<br />

CH 3 2b<br />

CH 2Ph 2c<br />

CH(CH 3) 2 2d<br />

Reference<br />

[1] F. Eckstein, Antisense Nucleic Acid Drug Dev. 2000, 10, 117 -121.<br />

[2] C. A. Brautigam, T. A. Steitz, J. Mol. Biol. 1998, 277, 363-377.<br />

[3] W. J. Stec, B. Karwowski, M. Boczkowska, P. Guga, M. Kozioøkiewicz, M. Sochacki, M.Wieczorek, J. Bøaszczyk,<br />

J. Am. Chem. Soc. 1998, 120, 7156- 7167.


P-176<br />

NEW β-FERROCENYL PHOSPHINO α-AMINOACIDS AS MODULAR<br />

ELECTROCHEMICAL BIOMARKER FOR CSF114(GLYCO)PEPTIDES<br />

A. Colson a , J. Bayardon, a E. Rémond, a F. Nuti, b R. Meunier-Prest, a M. Kubicky, a<br />

C. Darcel, a A.M. Papini b and S. Jugé* a<br />

a) Inst. Chim.Mol. de l'Université de Bourgogne,UMR CNRS 5620, 9 av. A. Savary, 21078 Dijon, France; Fax 33 3 80<br />

39 60 98; Email: Sylvain.Juge@u-bourgogne.fr<br />

b) Lab. de Chimie et Biologie de Peptides et Protéines, Université de Florence, I 50019, Italie<br />

In the recent period, organometallic probes have found considerable interest to mark all kinds of<br />

bioactive compounds, in order to improve their control by absorptiometry, immuno- or<br />

electro-chemical methods. 1 Meanwhile, several α-aminoacids bearing a metallocenyl substituent<br />

have been synthesized, mainly by a carbon-carbon bond formation strategy on the side chain. 1b<br />

We report herein a new efficient route for the diastereoselective synthesis of ferrocenyl aminoacid<br />

derivative 3, by grafting the organometallic part on the aspartic backbone 1, using a phosphine borane<br />

linker. 2<br />

HO 2C<br />

1<br />

CO 2H<br />

NH 2<br />

Fc<br />

Ph<br />

BH 3<br />

P<br />

2<br />

CO 2Bn<br />

NBoc 2<br />

53% isolated yield<br />

The interest of the phosphine borane group arises from its direct use for oxidation, sulfuration,<br />

quaternization or complexation, 3 allowing the synthesis of various kinds of ferrocenyl aminoacid<br />

derivatives, starting from 2 used as a platform. Thus, after sulfuration, the sulfide derivative is<br />

hydrolyzed into its corresponding free acid 3, useful for the peptide synthesis.<br />

In addition, the electrochemical investigation of the ferrocenyl aminoacid derivatives 2,3, and their<br />

use to mark the CSF114glc, a synthetic antigen specific of the mutiple sclerosis auto-antibodies, 4 are<br />

reported.<br />

Reference<br />

1) a) R. H. Fish, G. Jaouen Organometallics 2003, 22, 2166. b) H. Dialer, K. Polborn, W. Ponikwar, K. Sünkel, W.<br />

Beck Chem. Eur. J. 2002, 8, 691.<br />

2) For a recent work on organophosphorus amino acids synthesis, see: F. Meyer, A. Laaziri, A.M. Papini, J. Uziel, S.<br />

Jugé Tetrahedron 2004, 60, 3593.<br />

3) J. Uziel, C. Darcel, D. Moulin, C. Bauduin, S. Jugé Tetrahedron: Asymmetry 2001, 12, 1441.<br />

4) F. Lolli, B. Mulinacci, A. Carotenuto, B. Bonetti, G. Sabatino, B. Mazzanti, A.M. D'Ursi, E. Novellino, M. Pazzagli,<br />

L. Lovato, M.C. Alcaro, E. Peroni, M.C. Pozo-Carrero, F. Nuti, L. Battistini, G. Borsellino, M. Chelli, P. Rovero, A.M.<br />

Papini, Proc. Natl. Acad. Sci. USA 2005, 102, 10273.<br />

228<br />

S<br />

Fc<br />

P<br />

Ph<br />

3<br />

CO 2H<br />

NHBoc


P-183<br />

A STUDY ON THE NUCLEOSIDE ANALOGS USING ELECTROSPRAY<br />

IONIZATION MASS SPECTROMETRY<br />

Liu Ruoyu 1 , Ye Yong 1 , Cao Shuxia ,Liao Xincheng 1 , Zhao Yufen 1,2<br />

1.The Key Laboratory of Chemical Biology and Organic Chemistry of Henan Province, Department of Chemistry,<br />

Zhengzhou University, Zhengzhou 450052, China;<br />

2.The Key Laboratory for Bioorganic Phosphorus Chemistry and Chemical Biology, Ministry of Education, Department<br />

of Chemistry School of Life Sciences and Engineering, TsinghuaUniversity, Beijing 100084, China<br />

As anti-HIV prodrugs, nucleotide analogs have received considerable attention in medicinal<br />

chemistry. One of the uridin analogs was synthesized and the structure was determinded by using<br />

electrospray ionization mass spectrometry (ESI-MS) in conjunction with tandem mass<br />

spectrometry(MS/MS) in positive and negative mode. The fragmentation pathways were<br />

investigated in details. It was found that the fragmentation ions in the positive is very different from<br />

those in the negtive.<br />

m/z=283<br />

NH 2<br />

N<br />

HO<br />

O<br />

H H<br />

H H<br />

O O<br />

N<br />

O<br />

O<br />

-40<br />

NH 2<br />

N<br />

C<br />

N<br />

CH 2<br />

O<br />

m/z=152<br />

NH 2<br />

N<br />

HO<br />

O<br />

H H<br />

H H<br />

OH OH<br />

m/z=242<br />

-90<br />

NH 2<br />

N<br />

N<br />

N<br />

-132<br />

O<br />

m/z=110<br />

O<br />

229<br />

-43<br />

N<br />

N<br />

HO<br />

O<br />

H H<br />

H H<br />

OH OH<br />

N<br />

N<br />

HO<br />

O<br />

H H<br />

O<br />

m/z=181<br />

m/z=199<br />

-18<br />

-18<br />

N<br />

N<br />

HO<br />

O<br />

H H<br />

O<br />

m/z=181<br />

N<br />

N<br />

HO<br />

m/z=123<br />

References<br />

[1] Sun Xiaobin. Studies on Novel Synthesis of Antiviral Nucleoside H-Phosphonate Diester and Phosphoramidate<br />

Derivatives: [Doctor Paper]. Beijing.Chemistry Department of Tsinghua University.<br />

[2] Chen Yi. Study of the Anti-HIV Prodrugs and the Non-covalent Complexes with proteins by Electrospray Ionization<br />

Mass Spectrometry. [Doctor Paper]. Beijing.Chemistry Department of Tsinghua University.<br />

[3] Qiang Xiao,Yong Ju,Xinping Yang etc.Electrospray ionization mass spectrometry of AZT H-phosphonates<br />

conjugated with steroids. Rapid commun.Mass Spectrom.2003;17;1405-1410


P-184<br />

STUDIES ON THE NONCOVALENT BONDING BETWEEN ATP AND<br />

α-AMINOPHOSPHONIC ACIDS DERIVATIVES BY ESI-MS AND<br />

MOLECULAR MODELING<br />

Liu Xiaoxia, Fang Hua, Liu Yan, Zhao Yufen *<br />

The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry and College of Chemistry and<br />

Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China<br />

To investigate molecular recognition of ATP with proteins or structured peptide-based receptor<br />

[1,2]<br />

is very important for understanding enzymatic mechanisms and drug design .<br />

α-Aminophosphonic acids and their derivatives, as phosphorous analogs of amino acid, behaved<br />

more biological activities and attracted much attention [3] . In this work, Diisopropyl<br />

[phenyl(pyridine-4-carboxamido) -methyl]phosphonate (Figure 1a) was synthesized for<br />

investigating the interaction with ATP. The noncovalent complex was observed by the Electrospray<br />

ionization Mass Spectrometry (ESI-MS). Using the Molecular modeling [4] , it was observed that<br />

there were two intermolecular hydrogen bonds in the noncovalent complex. (Table 1) The binding<br />

energy was - 8.999kcals/mol, which was reasonable. In order to investigate the function of<br />

phosphoryl group in the interaction, benzoyl phenylglycine isopropyl ester (Figure 1b), was<br />

synthesized. Interestingly, there wasn’t interaction between ATP and compound 1b to be observed<br />

by ESI-MS. The above experiment results implied that phosphoryl group was very important for the<br />

interaction between α-Aminophosphonic acids and ATP.<br />

15 16<br />

14<br />

4<br />

3 O 1<br />

O 17<br />

1 H P 19<br />

8 7<br />

2<br />

N 13<br />

O 2<br />

1 N<br />

11<br />

12<br />

6 5<br />

9 10<br />

1 O 1<br />

4<br />

2 3<br />

a<br />

18<br />

Figure 1 The structure of (a) Diisopropyl [phenyl(pyridine-4-carboxamido)methyl]phosphonate (b)<br />

benzoyl phenylglycine isopropyl ester<br />

X---H---Y(symm code)<br />

X---Y(nm) X---H---Y(degree)<br />

(compound 1a ---ATP)<br />

N(2)-H(1)---O(12) 2.906 134.56<br />

P(1)=O(2)---H(1)-N(1) 2.877 160.68<br />

Table 1 Hydrogen Bonds geometry<br />

Reference<br />

[1] Lisong Mao,; Yanli Wang,; Yuemin Liu,; Xiche Hu, J. Am. Chem. Soc. 2003, 125:14216<br />

[2]Sara M. B.; Marcey L. W., J. Am. Chem. Soc. 2003, 125:9580<br />

[3]Fang, H.; Fang, M. J.; Liu, X. X.; Xu, P. X.; Zhao, Y. F., Chin. J. Org. Chem., 2005, 25:466<br />

[4]Sybyl 7.1; Tripos Inc.: St. Louis, MO.<br />

230<br />

O<br />

O<br />

C<br />

O<br />

CH<br />

b<br />

C<br />

NH


P-185<br />

PEPTIDE BOND FORMATION ON C-TERMINAL OF PEPTIDES IN ORGANIC<br />

SOLUTION BY INDUCEMENT OF N-PHOSPHORYL AMINO ACID<br />

Liu Xiaoxia, Liu Yan, Zhao Yufen *<br />

The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry and College of Chemistry and<br />

Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China<br />

Peptide formation is one of the most important reactions in prebiotic evolution. And<br />

N-phosphoryl-α-amino acids were proposed as model for the co-evolution of proteins and nucleic<br />

acid [1-4] . It was reported previously that the N-phosphoryl-homo, di- or tri-peptide could be<br />

formed through the self-activation reaction [5-7] . In this paper, tetrapeptide (FGGF), and<br />

heptapeptide (Ac-NH-LKKTETQ-OH) were incubated with N-phosphoalanine in pyridine solution.<br />

The resulting products were analyzed by ESI-MS/MS. It was found that peptides were prolonged by<br />

adding alanine residue both from on N-terminal and C-terminal (Table 1). Compared with the<br />

N-terminal reaction [8] , the mechanism of alanine adding on C-terminal had never reported. The<br />

possible mechanism was speculated that the five-membered ring penta-coordinate phosphoric<br />

intermediate played an important role in the reaction (Scheme 1). In order to prove the mechanism,<br />

N-protected tetrapeptide (Fmoc-NH-FGGF-COOH) was incubated with N-phosphoalanine in the<br />

same condition. Through ESI-MS/MS analysis, there was nothing more than the addition of alanine<br />

on C-terminal to be observed (Table 1).<br />

Dipp-Ala<br />

HO O<br />

O<br />

C<br />

O P<br />

CH<br />

O N<br />

CH3 H<br />

O O O O<br />

H2N CH C NH CH C NH CH C NH CH C O<br />

CH2 H H CH2 O O O O O<br />

H2N CH C NH CH C NH CH C NH CH C NH CH C OH<br />

CH2 H H CH2 CH3 FGGFA 1b<br />

231<br />

Dipp-Ala<br />

O<br />

O CH3 HO O C C NH<br />

O P<br />

O<br />

O<br />

O<br />

H<br />

FGGF NH2 O<br />

O<br />

O P NH CH C NH CH C NH CH C NH CH C NH CH C OH<br />

O CH2 H H CH2 CH3 Dipp-FGGFA 1d<br />

Scheme 1 the possible mechanism of alanine added on C-terminal of peptide<br />

Precursor ions(m/z) Main Fragments ions (m/z) (abundance, %)<br />

AFGGF<br />

FGGFA<br />

498<br />

333(63)<br />

409(93)<br />

276(15)<br />

262(14)<br />

219(7)<br />

205(4)<br />

Dipp-AFGGF<br />

Dipp-FGGFA<br />

662<br />

497(54)<br />

573(80)<br />

440(40)<br />

427(9)<br />

383(29) 236(4)<br />

Ac-LKKTETQA<br />

Ac-L(ε-A)KKTETQ<br />

960<br />

814(100)<br />

871(18)<br />

713(69)<br />

743(7)<br />

584(19)<br />

642(9)<br />

483(20)<br />

513(12)<br />

355(11)<br />

412(8) 284(5)<br />

Fmoc-FGGFA 720 631(50) 484(9)<br />

Table1 Multi-stage mass spectra of protonated Precursor ions<br />

Reference<br />

1. Zhao YF, Cao PS. Phosphorus, Sulfur Silicon. 1999; 144-146: 757.<br />

2. Zhao YF, Cao PS. Pure Appl.Chem. 1999; 71(6):1163.<br />

3. Ju Y, Zhao YF, Sha YW, Tan B. Phosphorus Sulfur and Silicon and the Related Elements. 1995; 101: 117.<br />

4. Ji GJ, Xue CB, Zeng JN, Li LP, Chai WG, Zhao YF. Synthesis-Stuttgart.1988; 6: 444.<br />

5. Hu JJ, Ju Y, Zhao YF. Chinese J. of Chem. 2000; 18 (6): 932.<br />

6. Lu K, Liu Y, Zhou N, Chen Y, Feng YP, Guo XF, Chen W, Qu LB, Zhao YF. Acta Chimica Sinica. 2002; 60 (2):<br />

372.<br />

7. Zhao YF, Ju Y, Li YM, Wang Q, Yin YW, Tan B. International J. of Peptide and Protein Research. 1995; 45 (6):<br />

514.<br />

8. Fu H, Li ZL, Zhao YF, Tu GZ. J. Am. Chem. Soc. 1999; 121 (2): 291.<br />

O<br />

O<br />

OH


P-193<br />

SYNTHESIS OF O-NUCLEOSIDE N-PHOSPHORYL AMINO<br />

ACID METHYL ESTER<br />

Chen Wei-Zhu 1,2 , Gao Yu-Xing 2 , Li Gang 2 2 *<br />

, Zhao Yu-Fen<br />

1 The Third Institute of Oceanography of The State Oceanic Administration, Xiamen 361005, P. R. China<br />

2 The Key Laboratory for Chemical Biology of Fujian Province,Department of Chemistry, College of Chemistry and<br />

Chemical Engineering, Xiamen 361005, P. R. China<br />

Recently, O-nucleoside N-phosphoryl amino acids are continuing to be an important class of<br />

rationally designed antiviral nucleoside prodrugs 1 and the model molecules in the study of the<br />

prebiotic biosynthesis of proteins 2 . Increasing interest in such compounds has provided the impetus<br />

for the development of a general synthetic method.<br />

In the present dissertation, we reported the application of Atherton-Todd reaction 3 in the<br />

synthesis of O-alkyl O-2’,3’-isopropylideneuridine N-phosphoryl amino acid methyl ester (Scheme<br />

1). Firstly, by Abuzov reaction, one-pot synthesis of hydrogen phosphonate derivatives of protected<br />

nucleoside by reacting protected nucleoside with PCl3, followed by alcoholysis with corresponding<br />

alcohols, protected nucleoside 5'-H-phosphonates derivatives were obtained in reasonable yields.<br />

By using mixture of t-butanol and menthol (1:1) as alcoholysis agents, the protected nucleoside<br />

5'-H-phosphonates derivatives were generated in satisfactory yields. Then the amino acid methyl<br />

ester 5'-phosphoramidates of nucleoside were synthesized in the presence of Et3N and CCl4 in high<br />

yields by Atherton-Todd reaction 3 . Excellent coupling yields were noted in the reaction of 3 with<br />

amino acid methyl ester of glycine, alanine, leucine, proline, methionine, histidine and<br />

phenylalanine.Their structures were confirmed by 1 H NMR, 31 P NMR, 13 C NMR and MS spectra.<br />

The present methodology was applicable to amino acid methyl esters with different side<br />

chains and with either of the nucleosid-3’ (or 5’)-yl H-phosphonates. Compared with other<br />

methodologies, this method is a fast, convenient and efficient method in mild reaction conditions.<br />

HO<br />

O<br />

O<br />

O N<br />

O<br />

HP<br />

O<br />

O<br />

NH<br />

O<br />

+ Cl P<br />

Cl<br />

Cl<br />

O N<br />

i<br />

232<br />

Cl<br />

P<br />

Cl<br />

O<br />

O<br />

O<br />

O N<br />

O O<br />

1<br />

NH<br />

2<br />

NH<br />

O<br />

3<br />

O<br />

O<br />

O<br />

O<br />

NH<br />

O<br />

ii<br />

iii<br />

iv O N<br />

O R O<br />

H<br />

H3C O C C N P O<br />

H<br />

O<br />

O O<br />

4<br />

Reagents and condition: (i) NEt3, dry CH2Cl2, 0 °C for 0.5 h, then room temperature for 3 h; (ii)<br />

dry CH2Cl2, menthol, tert-butyl alcohol, 0 °C, then room temperature for 0.5 h; (iii) NEt3 ,dry<br />

CH2Cl2, 0 °C, then room temperature for 10 min; (iv) CCl4, NEt3, H2O, CH3CN, AAOCH3, room<br />

temperature.<br />

Scheme 1 Synthetic route of O-nucleoside N-phosphoryl amino acid methyl ester<br />

References<br />

1. McGuigan, C; Cahard, D.; Sheeka, H. M.; Clercq, E. D.; Balzarrini, J. J. Med. Chem., 1996, 39, 1748-1753.<br />

2. Zhao, Y. F.; Cao P. S. J. Biol. Phys. 1994, 20, 283-287.<br />

3. Atherton, F. R.; Todd, A. R. J. Chem. Soc. 1947, 674-678.<br />

O


P-195<br />

PROTEIN PHOSPHORYLATION REGULATES PROTEIN LOCAL STRUCTURE AND<br />

FUNCTION<br />

Jia Hu, Yu-Fen Zhao, Yan-Mei Li *<br />

Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (ministry of Education), Department of<br />

Chemistry, Tsinghua University, Beijing 100084, P. R. China<br />

Protein phosphorylation is one of the most important forms of protein post-translational<br />

modifications. Reversible phosphorylation is related to most physiological and pathological<br />

processes. Some of our recent results concerning how phosphorylation participates in modulating<br />

protein local structure and adjusting protein properties were summarized in this article.<br />

233


P-197<br />

A FAST WAY TO SYNTHESIS NUCLEOSIDE H-PHOSPHONATE DERIVATIVES<br />

Jian-Bin Wu 1 , Jian-Nan Guo 1 , Jun Zhang 3 , Shu-Na Luo 1 , Xiang Gao 1 , Yu-Fen Zhao* 1,2<br />

1<br />

Department of Chemistry, School of Chemistry & Chemical Engineering, Xiamen University, Xiamen, P.R.China,<br />

361005<br />

2<br />

The Key Laboratory of Bio-organic Phosphorus Chemistry, Ministry of Education, Department of Chemistry, School<br />

of Life Science & Engineering, Tsinghua University, Beijing, P.R.China, 100084<br />

3<br />

Department of Biology, School of Life Science, Xiamen University, Xiamen, P.R.China, 361005<br />

The O-alkyl-5A-H-phosphonates of d4T or AZT have been proved to cause less<br />

nucleoside-resistant mutants of HIV, lower cytotoxicity, and higher anti-HIV activity due to easier<br />

membrane permeability of these derivatives resulting from the presence of the lipophilic group. [1]<br />

Here we report a novel fast way to synthesis O-alkyl-H-phosphonate of d4T using condensation<br />

reagent 2-chloro-1,3-dimethylimidazolinium chloride (DMC). A typical process is showed in<br />

scheme 1.<br />

HO<br />

O<br />

d4T<br />

O<br />

N<br />

NH<br />

O<br />

+<br />

Table 1 ROH 1~7<br />

H 3PO 3<br />

DMC<br />

pyridine, rt<br />

scheme 1<br />

234<br />

DMC, ROH 1~7<br />

pyridine, rt<br />

1 2 3 4 5 6 7<br />

OH OH OH<br />

OH HOCH2(CH 2) 16CH 3<br />

RO<br />

O<br />

P<br />

H<br />

O<br />

O<br />

a 1~7<br />

OH OH<br />

Typical procedure: DMC(1.2eq) is dissolve in dried CH2Cl2, then is dropped to a flask containing<br />

d4T(1eq) and H3PO3(1.1eq) in newly freshed pyridine. The reaction mixture is stirred at room<br />

temperature. After 5 minutes alcohol ROH(1eq) is added to the above flask and then another 1.2eq<br />

DMC in dried CH2Cl2 is dropped to the flask at room temperature.The second step finish within<br />

10minutes. The solvent is removed in vacuum and the raw product is purified over silica gel column<br />

chromatography using CH2Cl2/MeOH(20:1) as eluent to give yields from 45%-66% according to<br />

different alcohol.<br />

References:<br />

[1] XiaoBin Sun, JianXun Kang, YuFen Zhao. One-pot synthesis of hydrogen phosphonate derivatives of d4T and AZT.<br />

Chem. Commun. 2002, 20: 2414~2415<br />

O<br />

N<br />

NH<br />

O


Symposium 5<br />

Theoretical Aspects of Phosphorus Chemistry ;<br />

31 P NMR in Biological Systems


KL-7<br />

MOLECULAR SIMULATION STUDIES OF PROTEIN KINASES<br />

Martin J. Field<br />

Laboratoire de Dynamique Moleculaire, Institut de Biologie Structurale - Jean-Pierre Ebel, 41, rue Jules Horowitz,<br />

38027 Grenoble Cedex 1, France<br />

An important goal of computational and theoretical biochemistry is helping elucidate how<br />

enzymes achieve their catalytic efficiency. The extended nature of such systems, however, makes<br />

this a challenging task for simulation techniques. Powerful approaches for the investigation of<br />

enzymatic and other condensed phase reaction processes are quantum chemical, molecular<br />

dynamical and hybrid potential techniques 1 . This talk will describe the combination of techniques<br />

employed in the author's group and illustrate their use by a discussion of their application to<br />

simulations of protein kinases. 2<br />

Reference<br />

1. Field, M. J.; Albe, M.; Bret, C.; et al. Jounal of Computational Chemistry 2000, 21(12), 1088.<br />

2. Diaz N, Field M. J., Journal of The American Chemical Society 126 (2): 529-542 JAN 21 2004<br />

235


KL-8<br />

FROM POWDER NMR TENSOR TO 3D MOLECULAR STRUCTURE,<br />

PROMISES OR ILLUSION - A 31P AND 13C CASE STUDY ON CIMITIDINE<br />

Steve C.F. Au-yeung<br />

The Chinese University of Hong Kong, P.R.China<br />

236


IL-15<br />

NMR INVESTIGATIONS OF PHOSPHATE TRANSFER ENZYMES<br />

Jonathan P. Waltho<br />

Department of Molecular Biology and Biotechnology, University of Sheffield, Sheffield S10 2TN, UK.<br />

The interpretation of a structure of beta-phosphoglucomutase (PGM) complexed with G6P as a<br />

pentacovalent trigonal bipyrimidal phosphorus intermediate[1] raised many questions as to how<br />

phosphoryl transfer is achieved in a wide variety of enzymes. Using 31P and 19F NMR<br />

spectroscopy, we have established that the trigonal-bipyramidal (TBP) species was misinterpreted<br />

and is in fact magnesium trifluoride, MgF3, rather than a phosphorane species[2]. However, the<br />

bonding in the TBP accurately portrays the transition state for phosphoryl transfer in PGM and<br />

reveals the details of protein catalysis. Using similar methods we have extended this investigation to<br />

a range of similar and dissimilar enzymes, namely phosphoserine phosphatase, phosphoglycerate<br />

kinase, and F1-ATPase.<br />

References<br />

1. Lahiri, S.D.; Zhang, G.; Dunaway-Mariano, D.; et al. Science (2003), 299, 2067-2071.<br />

2. Baxter, N.J.; Olguin, L.F., Golicnik, M.; et al. Proc. Natl. Acad. Sci. USA (2006), 103, 14732-14737.<br />

237


IL-16<br />

PHOTOPHYSICS OF DNA AND LIGHT HARVESTING SYSTEMS<br />

GuanHua Chen<br />

Department of Chemistry, The University of Hong Kong, HK, P.R.China<br />

Using the linear-scaling localized-density-matrix method, we have calculated the excited states of<br />

a single-stranded adenine bases and a light harvesting system II (LH2), and propose a unified<br />

Frenkel exciton description of these excited states.<br />

238


IL-18<br />

QM-MM COMPUTATION OF PHOSPHATE TRANSFER BY ENZYMES<br />

Charles E. Webster<br />

Department of Chemistry, The University of Memphis, Memphis, TN 38152, USA<br />

Two-layered ONIOM(B3LYP:PM3) calculations<br />

have been utilized to address the nature of the<br />

β-phosphoglucomutase (β-PGM) enzyme active site<br />

structure and shed light on the identity of the five<br />

coordinate atom, Y, and its ligation (see Scheme). The<br />

reported crystal structure of β-PGM was refined as a<br />

five-coordinate phosphorus (with five oxygen ligands),<br />

which the authors suggested was a "high-energy<br />

reaction intermediate" for phosphoryl transfer in the isomerization of β-glucose 1-phosphate to<br />

β-glucose 6-phosphate. The active site of β-PGM has a five coordinate atom (Y=P or Mg) and a<br />

pseudooctahedral Mg, coordinated by four terminal ligands (two H2O, an oxygen from ASP170,<br />

and a backbone oxygen from ASP10) and two bridging ligands (an oxygen from ASP8 and a<br />

bridging atom, Xb, to the five-coordinate species, Y). Conclusions from the current computational<br />

study include 1) the observed crystal structure is more consistent with a five-coordinate magnesium<br />

(a stable transition-state analogue), not a five-coordinate phosphorus (a phosphorane) and 2) the<br />

transfer of the phosphoryl group proceeds through a concerted fivecoordinate phosphorus transition<br />

state that is directly coupled to a proton transfer from the oxygen of bound glucose to the carboxylic<br />

group of aspartate 10. Our further work on this system will also be discussed.<br />

239


O-44<br />

1.3-DIPHOSPHACYCLOBUTANE-DIYLS AS BUILDING BLOCKS<br />

FOR EXTENDED STRUCTURES<br />

Wolfgang W. Schoeller,<br />

Department of Chemistry, University of Bielefeld,<br />

33615 Bielefeld (Germany) and Department of Chemistry,<br />

University of California at Riverside (USA)<br />

The structures 1[1] and 2[2] are isolable biradicaloids, but with different electronic properties[3].<br />

In the present contribution the effects of substituents (R´, R´´= alkyl, aryl, TMS) which determine<br />

the biradical character in 1 and 2 are discussed. Furthermore, the design of extended structures such<br />

as 3, with biradicaloid units linked over a -spacer (e.g. phenyl), is analyzed. The coupling of the<br />

unpaired electrons is studied by a combination of MCSCF and DFT procedures.<br />

R´<br />

P<br />

R´´ C<br />

C R´´<br />

C<br />

1<br />

P<br />

P<br />

C<br />

P<br />

R´<br />

240<br />

R´ R´<br />

P<br />

R´´ B<br />

B R´´<br />

π-spacer C<br />

C 3<br />

Reference<br />

[1] E. Niecke, A. Fuchs, F. Baumeister, M. Nieger, W.W. Schoeller, Angew. Chem. Intern. Ed. 1995, 34, 555. H.<br />

Sugiyama, S. Ito, M. Yoshifuji, Angew. Chem. Intern. Ed. 2003, 42, 3802.<br />

[2] D. Scheschkewitz, H. Amii, H. Gornitzka, W.W. Schoeller, D. Bourissou, G. Bertrand, Science 2002, 295, 1880.<br />

[3] W.W. Schoeller, C. Begemann, E. Niecke, D. Gudat, J. Phys. Chem. A 2001, 105, 10731. W.W. Schoeller, A.<br />

Rozhenko, D. Bourissou, G. Bertrand, Chem. Eur. J. 2003, 9, 3611.<br />

R´<br />

P<br />

P<br />

P<br />

R´<br />

2


O-45<br />

DEVELOPMENT OF A BIDENTATE LIGAND BASED ON<br />

DECAFLUORO-3-PHENYL-3-PENTANOL: STERIC EFFECT OF<br />

PENTAFLUOROETHYL GROUPS ON THE STEREOMUTATION<br />

OF OEQUATORIAL C-APICAL SPIROPHOSPHORANES<br />

Y.Yamamoto*†, X.d.Jiang†, K.I.Kakuda†, S. Matsukawa§, H.Yamamichi†<br />

† Department of Chemistry, Graduate School of Science, Hiroshima University<br />

1-3-1 Kagamiyama, Higashi-hiroshima 739-8526, Japan<br />

§ Institute for Advanced Materials Research, Hiroshima University<br />

1-3-1 Kagamiyama, Higashi-hiroshima 739-8530, Japan<br />

1,1,1,2,2,4,4,5,5,5-Decafluoro-3-phenyl-3-pentanol (1) was prepared from pentafluoro<br />

-propiophenone via the Cannizzaro-type disproportionation reaction.1 Dimetallated 1 (i.e., 2) was<br />

used as a bidentate ligand, which was bulkier than the Martin ligand (1,1,1,3,3,3-hexafluoro-<br />

2-phenyl-2-propanol). P-H spirophosphorane (3) was synthesized utilizing the new bidentate ligand.<br />

Phosphoranes which exhibit reversed apicophilicity (4: Oequatorial) were also synthesized and<br />

could be converted to the corresponding stable stereoisomers (5: O-apical). The crystal structures of<br />

O-equatorial phosphoranes (4) and those of O-apical isomers (5) were slightly affected by the steric<br />

repulsion of C2F5 groups.<br />

Kinetic measurements revealed that the stereomutation of O-equatorial methylphosphorane (4a)<br />

to the O-apical isomer (5a) was slowed. The activation enthalpy for the stereomutation of 4a→5a<br />

(24.4 kcal mol–1) was higher than that of the phosphorane bearing the Martin ligands (6a→7a: 19.3<br />

kcal mol–1) by 5.1 kcal mol–1.<br />

References<br />

[1] Jiang, X.-D.; Kakuda, K.-i.; Matsukawa, S.; Yamamichi, H.; Kojima, S.; Yamamoto, Y. Chem. Asian J. 2007, 2, in<br />

press.<br />

241


O-46<br />

CONFORMATIONAL ANALYSIS OF 1,4-HETEROPHOSPHINANES<br />

Ya.A. Vereshchagina, a, b E.A. Ishmaeva, b A.A. Gazizova, a D.V. Chachkov, a M.G. Voronkov c<br />

a Kazan State Technological University, K. Marks St., 68, Kazan, 420015, b Kazan State University, Kremlevskaya St.,<br />

18, Kazan, 420008, andc A.E. Favorsky Irkutsk Institute of Chemistry SB of RAS, Favorsky St., 1, Irkutsk, 664033,<br />

Russian Federation; e-mail: yavereshchagina@yahoo.com<br />

We carried out a conformational analysis of 1,4-heterophosphinanes 1-3 by the methods of dipole<br />

moments, Kerr effect, molecular mechanics, and quantum chemical calculations (DFT<br />

B3LYP/6-31G*).<br />

Y 1 X = S, Y = Se<br />

X P 2 X = SiMe2, Y = Se<br />

Ph<br />

3 X = SiMe2, Y = lone pair of electrons<br />

Chair conformations were the energetical preferred for compounds 1-3 according to the data of<br />

MM calculations.Experimental and calculated (vector-additive scheme) dipole moments for chair<br />

conformations of compounds 1-3 are presented below. The conformer with equatorial orientation of<br />

the phenyl substituent (chaire) was preferred for all compounds by the data of dipole moments<br />

method.<br />

Y<br />

Ph<br />

№<br />

µcalc, D<br />

µexpt, D,<br />

P<br />

P<br />

Ph<br />

Y<br />

chaira chaire dioxane<br />

X<br />

X<br />

1 4.07 4.31 4.39<br />

chaire chaira 2 4.71 5.13 5.30<br />

3 0.96 1.87 1.82<br />

Analysis of experimental and calculated Kerr constants of phosphinane 2 led to a conclusion that<br />

chair conformation of heterocycle with parallel arrangement of the Ph ring and the P=Se group was<br />

preferred in this compound.<br />

The calculations of relative energies of the possible conformers of studied compounds<br />

(B3LYP/6-31G* method) corresponded to obtained experimental data completely. The conformers<br />

with axial orientation of the P=Se bond (1, 2) or the lone pair of electrons at the phosphorus atom (3)<br />

and equatorial phenyl substituent had the energy minima (ΔE = 0 kcal . mole -1 ) for all three<br />

1,4-heterophosphinanes. The quantum chemical calculation results for phosphinanes 1-3 were in a<br />

good agreement with experimental data (dipole moments and Kerr constants in dioxane solution)<br />

and calculated dipole moments (vector-additive scheme).<br />

It was determined, that chair conformation with equatorial orientation of exocyclic phenyl<br />

substituent is preferred for 1,4-heterophosphinanes independent of the nature of second heteroatom<br />

in six-membered phosphorus heterocycle (oxygen [1], sulfur or silicon), and the coordination state<br />

of the phosphorus atom (P III or P IV ).<br />

Reference<br />

[1] Karataeva, F.Kh.; Kushnikovskaya, I.K.; Patsanovsky, I.I.; Ishmaeva, E.A. Russian J. Gen. Chem., 1991, 61 (11),<br />

2562.<br />

242


O-47<br />

STEREOSELECTIVE SYNTHESIS AND INTERCONVERSIONS OF<br />

1,9-DIAZA-3,7,11,15-TETRAPHOSPHACYCLOHEXADECANES<br />

R.N.Naumov, a * A.A.Karasik, a A.V.Kozlov, a Sh.K.Latypov, a D.B.Krivolapov, a A.B.Dobrynin, a I.A.Litvinov, a<br />

O.N.Kataeva, a P.Lönnecke, b E.Hey-Hawkins, b O.G.Sinyashin a .<br />

aA.E. Arbuzov Institute of Organic and Physical Chemistry, Russian Academy of Sciences, Arbuzov str. 8, Kazan,<br />

420088 Russian Federation. E-mail: naumov@iopc.knc.ru<br />

cInstitut für Anorganische Chemie der Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany. E-mail:<br />

hey@rz.uni-leipzig.de<br />

The first representative of 1,9-diaza-3,7,11,15-tetraphosphacyclohexadecanes [1] has been<br />

synthesized in the course of covalent self-assembly in three-component system:<br />

bis(mesitylphosphino)propane, formaldehyde and benzylamine. The isomeric cyclic diphosphines -<br />

1,3,7-azadiphosphacyclooctanes [2] were formed when primary arylamines had been used in the<br />

condensation. However, introduction of various analogues of benzylamine (chiral<br />

α-methylbenzylamine, ortho-, meta- and para-aminomethylpiridins) into this reaction afforded a<br />

wide row of 1,9-diaza-3,7,11,15-tetraphosphacyclohexadecanes. Only one<br />

S(P)R(C)S(P)R(P)R(C)R(P)-stereoisomer of the corresponding optically active 1,9-diaza-3,7,11,15<br />

-tetraphosphacyclo-hexadecanes, containing six asymmetrical atoms, was synthesized<br />

stereoselectively from R-α-methylbenzylamines. The polydentate macrocyclic phosphino amino<br />

pyridines, which potentially can participate in co-ordination with transition metals due to four<br />

phosphorus and two additional nitrogen atoms of piridine group, were synthesized. Finally, a true<br />

racemic mixture of two rac-isomers with RRRR- and SSSS-configuration of phosphorus atoms of<br />

cage-like 1,9-diaza-3,7,11,15-tetraphosphacyclohexadecanes (Fig. 1) was obtained in<br />

tree-component reaction of bis(mesitylphosphino)propane, formaldehyde and meta-xylylenediamine.<br />

Interconversions between the stereoisomers of the 1,9-diaza-3,7,11,15-tetraphospha<br />

-cyclohexadecanes were found in the solution, demonstrating a relatively high lability of the<br />

phosphorus atom's configuration in these macrocyclic compounds in comparison with common<br />

tertiary phosphires.<br />

Acknowledgements: Financial support from Volkswagen Foundation, RFBR (No.<br />

06-03-32754-a), Russian Science Support Foundation and from President’s of RF Grant for the<br />

support of leading scientific schools (No. 5148.2006.3) is gratefully acknowledged.<br />

Reference<br />

1. R. N. Naumov, A. A. Karasik, O. G. Sinyashin et al, Dalton Trans., 2004, 357.<br />

2. A.A. Karasik, R.N. Naumov et al, Z. Anorg. Allg. Chem. 2007, in press.<br />

243<br />

Fig.1.


O-48<br />

REACTIONS OF PHOSPHONIC ACIDS WITH BASES IN AQUEOUS SOLUTIONS<br />

Myund, L. A.; Lu, N; Sidorov, Yu. V., Burkov, K. A.<br />

St. Petersburg State University, St. Petersburg, Russia<br />

The regular trends in the change of volume in the reactions of aqueous solutions of<br />

methanephosphonic, 1-aminoethanephosphosphonic, carboxymethahephosphonic, 1-hydroxyethane<br />

-1,1-diphosphonic, and nitrilotris(methanephosphonic) acids with aqueous solutions of MOH (M =<br />

Li, Na, K, Rb, Cs), tetramethyl-, tetraethylammonium and ammonium hydroxides at 25°C were<br />

revealed. The purposed explanation accounts the acid ionization, ion neutralization and hydration,<br />

presence of betaine forms, and formation of proton chelates [1, 2].<br />

Specific features of reactions of ammonia with nitrilotris(methanephosphonic) acid (H6L) in<br />

various stages of its dissociation are discussed. The revealed differences in the action of similar<br />

additions of ammonia and strong hydroxyl-containing bases on the state of H6L and its anions in<br />

aqueous solution are accounted for by specific features of ammonia as a base and of ammonium ion<br />

as a product of ammonia neutralization. Volume changes resulting from protonation of the anion of<br />

bis(tetraethylammonium) salt of H6L were determined. Protonation consts., apparent molar<br />

volumes of the acid and its ionized forms, and vol. changes on neutralization of the acid and<br />

protonation of its salt were calcd. Volume changes of protonation of 1-(aminoethyl)phosphonate<br />

anion were determined. Protonation constants, apparent molar volumes of the acid and its ionized<br />

forms, and vol. changes on neutralization of the acid and protonation of its salt were calcd. The<br />

presence of the betaine form of the acid in solns. was detected. The rule of the constancy of the<br />

sum of the vol. effects of the protonation and neutralization reactions was valid for conjugate<br />

acid-base pairs of dibasic acids.<br />

Dissocn. and alkali complex formation equil. of nitrilotris(methylenrphosphonic) acid (NTMP,<br />

H6L) have been studied by dilatometric, potentiometrc and 31P NMR-controlled titrns. Dilatometry<br />

indicated the formation of alkali complexes ML (M=Li,Na,K,Rb,Cs) at high pH with a stability<br />

decreasing from Li to Cs. An efficient combination of potentiometric and NMR methods confirmed<br />

two types of alkali metal complexes MHL and ML. Stability consts. for the equil. following<br />

M++HL5-.dblharw. MHL4- and M++L6- dblharw. ML5-, resp., were detd.:logKNaHL=1.08(0.07),<br />

logKKHL=0.86(0.08), logKNaL=2.24(0.03). The actual dissocn. consts. were found: (H2L4-.<br />

dblharw. H++HL5-) pKa5+7.47(0.03) and (HL5- dblharw. H++L6-) pKa6=14.1(0.1). The<br />

anisotropy of 31P chem. shifts of salts MnH6-nL (M=Li, Na, n=0-5) is more sensitive towards titrn.<br />

(n) than isotropic soln. state chem. shifts.<br />

References<br />

1. Grossmann, G.; Burkov, K. A.; Hagele, G.; Myund, L. A.; Hermens, S.; Verwey, C.; Arat-ool, Sh. M. Inorg. Chim.<br />

Acta 2004, 357, 797.<br />

2. Myund, L. A.; Latysheva, V. A.; Arat-Ool, Sh. M.; Hagele, G.; Burkov, K. A. Russ. J. Gen. Chem. 2001, 71, 1384.<br />

244


O-49<br />

DISTINCT π BONDING CAPABILITY BETWEEN<br />

PHOSPHINIDENE AND PHOSPHONIUM ION<br />

Hisn-Mei Cheng and San-Yan Chu<br />

Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan<br />

Although both phosphinidiene (RP) and phosphonium ion (R2P + ) are isoelectronic to silylenes,<br />

theπbonding tendency of the former is rather strong that it forms planar adduct with both the stable<br />

carbene and stable silylene((HCNH)2E,E=C and Si, denoted A and B, repectively). In contrast, the<br />

latter forms trans-bent adducts with the two species. Therefore, the phosphinidene and<br />

phosphonium ion are actually analogous to the carbene and silylene, respectively, in the pi bonding<br />

capability. These results can be interpreted in terms of CGMT model and the fact that the value of<br />

singlet-triplet energy gap of HP fragment increases significantly after the protonation(47.9kcal/mol).<br />

The former has two open-shell p orbitals, ready to form stable double bond. The latter has a stable<br />

lone pair, thus a significant promotion is required for the double bond formation. Listed below are<br />

the computation results of CH2, SiH2, PH and PH2 + (X) bonding with stable carbene (A) and stable<br />

silylene (B) to form doubly bonded compounds A=X and B=X with B3LYP/6-311G** method.<br />

Finally, nitrene (NH) and nitrenium (NH2 + ) haveΔEST of -49.58 and -32.70 kcal/mol respectively.<br />

Therefore both are analogous to carbene in π bonding capability, unlike the conspicuous distinction<br />

between HP and H2P + .<br />

A=X RAX(A o ) angle a ΔEST(X) b<br />

A=CH2 1.352 1.57 -12.17<br />

A=SiH2 1.926 84.99 20.16<br />

A=PH 1.698 0.00 -32.07<br />

A=PH2 + 1.858 83.41 15.90<br />

245<br />

B=X RBX(A o ) angle ΔEST(X)<br />

B=CH2 1.698 0.11 -12.15<br />

B=SiH2 2.219 59.19 20.16<br />

B=PH 2.098 0.00 -32.07<br />

B=PH2 + 2.196 84.49 15.90<br />

a.bending angle of X from planar geometry b.E(triplet)-E(singlet) for X in kcal/mol


O-50<br />

DIMERIZATION AND TRIMERIZATION OF PHOSPHAACETYLENE.<br />

A MECHANISTIC STUDY<br />

T. Veszprémi, T. Höltzl, and M.T. Nguyen<br />

a<br />

Department of Inorganic Chemistry, Budapest University of Technology and Economics,<br />

Gellért tér 4, H-1521 Budapest, Hungary. Email: Tveszpremi@mail.bme.hu<br />

b<br />

Department of Chemistry, University of Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium.<br />

Email: minh.nguyen@chem.kuleuven.ac.be<br />

Keywords: Reaction mechanism, Di- and Tri-merization, Phosphaacetylene<br />

Phosphaalkynes play an important role in the low-coordinated phosphorus chemistry. To<br />

understand the oligomerization of phospha-alkynes, and predict new potential targets and reaction<br />

conditions for synthesis, we studied the C2P2H2 potential surface and all the possible dimerization<br />

reaction channels using high-level ab initio (CCSD(T), CBS-QB3, CASSCF, CASPT2, MR-ACPF,<br />

MR-ACPF-2) and Density Functional Theory (B3LYP).<br />

Seventeen low energy closed-shell and five open shell phosphaacetylene dimers could be found<br />

on the potential energy surface. Two head-to-head, one head-to-tail and three other dimerization<br />

reaction paths were found, all with high activation barriers, suggesting that closed-shell minima are<br />

usually kinetically stable. An open-shell head-to-head reaction path has also been found with<br />

moderate initial barrier (95.0 kJ/mol) leading to 1,2- and 1,3-diphosphacyclobutadiene, suggesting<br />

that polymerization of HCP and oligomerization of its derivatives have open-shell mechanism.<br />

Formation of 1,2-diphosphacyclobutadiene is both thermodynamically and kinetically favored over<br />

1,3-diphosphacyclobutadiene. A head-to-head reaction involving LiBr as a catalyst was also studied.<br />

It has been pointed out that LiBr catalyse the closed-shell mechanism. All the four possible reaction<br />

channels of this reaction yield 1,4-diphosphatriafulvene with a fairly low activation Gibbs-free<br />

energy (44.8 kJ/mol), suggesting that this compound could be synthesized. This finding fully<br />

supports the experimental findings.<br />

246


O-52<br />

BOND ACTIVATION PROCESSES IN N-HETEROCYCLIC PHOSPHINES<br />

D.Gudat, S.Burck, I.Hajdók, F.Lissner, M.Nieger<br />

Institut f. Anorganische Chemie, Univ. Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart,Germany<br />

N-heterocyclic phosphines I (NHP) with exocyclic hydrogen or phosphinyl substituents display a<br />

unique weakening of the exocyclic P–H or P–P bonds, respectively, which can be rationalized in<br />

terms of a bond/no-bond resonance (hyperconjugation) between the canonical structures Ia and Ib<br />

with an unusually large contribution by the ionic structure Ib.1,2 We present new results<br />

demonstrating that this effect can be enhanced to the extent of complete ionization of a P–P bond,<br />

giving rise to isolable ionic phosphenium-phosphides (Ib, X = PR2). The unusual molecular<br />

structures and bonding situation in these compounds will be discussed in some detail. Reports on<br />

the study of the chemical reactivity of P-phosphinyl substituted NHPs will focus on novel<br />

stereoselective additions to multiple bonds, and on the exploration of the use of NHPs as<br />

organocatalysts for phosphorus-carbon cross coupling reactions.3<br />

The concept of exocyclic bond activation will be extended to NHPs with purely organic<br />

substituents, and first examples of reactions under specific activation of phosphorus-carbonbonds<br />

will be communicated.<br />

As a complement to reactions involving activation of exocyclic P-X bonds in NHPs we will<br />

further present experimental evidence showing that selected substituents X allow to tune the<br />

hyperconjugation interactions in the heterocyclic to induce a weakening of an endocyclic P–N bond,<br />

thus paving the way to novel ring fragmentation reactions.<br />

References:<br />

[1] S. Burck, D. Gudat, M. Nieger, Angew. Chem., Int. Ed. 2004, 43, 4801.<br />

[2] S. Burck, D. Gudat, M. Nieger, W.W. du Mont, J. Am. Chem. Soc. 2006, 128, 3946.<br />

[3] S. Burck, D. Förster, D. Gudat, Chem. Commun. 2006, 2810.<br />

247


O-53<br />

DETERMINATION OF OPTICAL PURITY OF AMINOPHOSPHONATES<br />

BY MEANS OF NMR SPECTROSCOP<br />

E.Rudzińska<br />

Laboratory of Structural Analysis, Faculty of Chemistry, Wrocław University of Technology, WybrzeŜe<br />

Wyspiańskiego 27, 50-370 Wrocław, Poland<br />

Aminophosphonic and aminophosphinic acids constitute a class of mimetics of amino acids in<br />

which a carboxylic group is replaced by phosphonic or related functionality. Acting as antagonists<br />

of amino acids, they inhibit enzymes involved in amino acid metabolism and thus affect a variety of<br />

physiological processes. Therefore, they may be used in a wide range of human activity ranging<br />

from agriculture to medicine. These compounds have already been found to act as antibacterial<br />

agents, neuroactive compounds, anticancer drugs and pesticides. Moreover, N-protected derivatives<br />

of aminophosphonates represent essential substrates for the synthesis of phosphorus containing<br />

peptidomimetics. The resulting peptide isosteres contain moieties mimicking the high-energy<br />

tetrahedral transition state of amide bond hydrolysis. Due to this feature, they constitute a class of<br />

effective inhibitors of proteases, exhibiting particular potency towards metallo-dependent enzymes.<br />

It is well recognized that the biological activity of organic compounds is strongly dependent on<br />

their stereochemistry. Thus, a simple and versatile method for determination of optical purity of<br />

these compounds is strongly desirable. Here, we summarize the application of 31P NMR<br />

spectroscopy as a fast, versatile and reliable technique for enantiodiscrimination of a wide group of<br />

aminophosphonic, aminophosphinic acids, their N-benzyloxycarbonyl derivatives as well as<br />

phosphonate ethyl and phenyl monoesters. Different commercially available cyclodextrins and<br />

O-tertbutylcarbamoylquinine and quinidine were successfully applied as chemical shift reagents.<br />

Employing two-dimensional NMR techniques selected ligand-receptor complexes were studied<br />

in some details. Molecular modelling studies of the interaction within the supramolecular structures<br />

were performed as well.<br />

248


O-54<br />

PHOSPHORUS STABILZES AND CAN BE STABILIZED<br />

László Nyulászi<br />

Department of Inorganic Chemistry Budapest University of Technology and Economics<br />

H-1521 Budapest Szt Gellért tér 4, Hungary<br />

nyulaszi@mail.bme.hu<br />

The covalent bonds in the chemistry of phosphorus-carbon compounds exhibit a great diversity,<br />

including single, double, triple bonds with or without the expansion of the valence shell. In the<br />

present contribution some examples will be presented where these well known bonding structures<br />

are perturbed by substituents, and as a result the stability of unusual compounds can be predicted.<br />

To quantitize the effects we use a computational approach, calculating isodesmic reactions. Both<br />

the thermodynamics and the kinetics of possible dimerization and oligomerization reaction will be<br />

investigated by calculating the energies and barriers of these processes. The computed results are<br />

compared to the available experimental observations.<br />

It will be discussed in detail, which substituents stabilize phosphorus effectively in<br />

phosphinidenes.1 Also the stabilizing effect of a pair of phosphorus lone pairs will be discussed in<br />

case of carbocations2 and carbenes, in relation with the inversion barrier at the tricoordinate<br />

phosphorus. Further stabilizing and destabilizing effects will be discussed in case of phosphole.3<br />

Reference<br />

1. Z. Benkő, R. Streubel, L. Nyulászi Dalton Transactions 2006, 4321.<br />

2. M. Sebastian, A. Hoskin, M. Nieger, L. Nyulászi, E. Niecke Angew. Chem. 2005, 44, 1405.<br />

3. L. Nyulászi, O. Hollóczki, C. Lescop, M. Hissler, R. Reau Org. Biomol. Chem. 2006, 4, 996.<br />

249


O-94<br />

MECHANISM OF AMINO ACIDS MEDIATED OLIGOMERIZATION INTO PEPTIDES<br />

BY PHOSPHORUS TRICHLORIDE<br />

W.J.Zhao 1 D.X.Zhao 1 K.Lu 1*<br />

1.School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450052, China;<br />

2.Department of Chemistry, Xiamen University, Xiamen 361005, China<br />

N-phosphoryl a-amino acids and N,O-bis(trimethylsilyl)-a-amino acids could self-activated to<br />

give peptides and the reaction mechanism undergo penta-coordinate phosphorus intermediate of<br />

amino acid[1]. In our previous work with the assistance of inorganic phosphorus amino acids also<br />

could be assembled into oligopeptides[2,3]. In this paper, the reaction mechanism was studied by<br />

using 31P NMR and electrospray ionization mass spectrometry(ESI-MS/MS). Based on the results<br />

obtainted by 31 P NMR and ESI-MS/MS, a detailed reaction mechanism of peptidesformation from<br />

amino acid mediated by phosphorus trichloride was proposed. Aminoacyl-phosphorus trichloride<br />

mixed anhydride and N-phosphoryl a-amino acids were produced by amino acids reacting with<br />

phosphorus trichloride. A penta-coordinated phosphorus intermediated was formed via an<br />

aminoacyl-phosphorus trichloride mixed anhydride or N-phosphoryl a-amino acids. The carbonyl<br />

group of the penta-coordinated phosphorus intermediated was activated and then was attacked by an<br />

amino acid to yield N-phosphoryl dipeptide and loss one hydroxyl phosphorus oxychloride<br />

molecule. If dipeptide reacts with the penta-coordinated phosphorus intermediated tripeptide will<br />

produced following the same way. The formation of longer peptides may be deduced by analogy.<br />

However, the penta-coordinated phosphorus intermediated is un stable and only exists as<br />

instantaneous intermediated. There is no signal of penta-coordinated phosphorus intermediated<br />

appeared in the stack 31P NMR spectra. But the progress of N,O-bis(trimethylsilyl)-a-amino acids<br />

reacting with phosphorus trichloride in dichloridemethane was monitored and the signal of<br />

penta-coordinated phosphorus intermediated appeared in 31P NMR spectroscopy.<br />

References<br />

[1] Y. Ju, Y. F. Zhao, Y. W. Sha, et al, Phosphorus, Sulfur and Silicon. 1995,101(1-4): 117<br />

[2] H. Li, W. J. Zhao, S. X. Cao, et al. Chem. J. Chinese Universities, 2004, 25, 1866.<br />

250


P-103<br />

MECHANISM OF AMINO ACIDS MEDIATED OLIGOMERIZATION INTO PEPTIDES<br />

BY PHOSPHORUS TRICHLORIDE<br />

Wenjie Zhao, Dongxin Zhao, Kui Lu*<br />

School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450052, China<br />

N-phosphoryl-amino acids and N,O-bis(trimethylsilyl)- -amino acids could self-activated to<br />

give peptides and the reaction mechanism undergo penta-coordinate phosphorus intermediate of<br />

amino acid [1]. In our previous work with the assistance of inorganic phosphorus amino acids also<br />

could be assembled into oligopeptides [2,3] . The reaction mechanism was studied by using 31 P NMR<br />

and electrospray ionization mass spectrometry (ESI-MS/MS).<br />

Based on the results obtainted by 31 P NMR and ESI-MS/MS, a detailed reaction mechanism of<br />

peptides formation from amino acid mediated by phosphorus trichloride was proposed.<br />

Aminoacyl-phosphorus trichloride mixed anhydride and N-phosphoryl -amino acids were<br />

produced by amino acids reacting with phosphorus trichloride. A penta-coordinated phosphorus<br />

intermediated was formed via an aminoacyl-phosphorus trichloride mixed anhydride or<br />

N-phosphoryl -amino acids. The carbonyl group of the penta-coordinated phosphorus<br />

intermediated was activated and then was attacked by an amino acid to yield N-phosphoryl<br />

dipeptide and loss one hydroxyl phosphorus oxychloride molecule. If dipeptide reacts with the<br />

penta-coordinated phosphorus intermediated tripeptide will produced following the same way. The<br />

formation of longer peptides may be deduced by analogy. However, the penta-coordinated<br />

phosphorus intermediated is unstable and only exists as instantaneous intermediated. There is no<br />

signal of penta-coordinated phosphorus intermediated appeared in the stack 31 P NMR spectra. But<br />

the progress of N,O-bis(trimethylsilyl)- -amino acids reacting with phosphorus trichloride in<br />

dichloridemethane was monitored and the signal of penta-coordinated phosphorus intermediated<br />

appeared in 31 P NMR spectroscopy.<br />

Acknowledgements: The authors would like to thank the financial supports from the Chinese<br />

National Science Foundation (No.20272055, 20572016), Henan Province Science Foundation for<br />

Prominent Youth (No.0312000900) and Office of Education of Henan Province (No.<br />

2006KYCX017).<br />

References:<br />

1. Y. Ju, Y. F. Zhao, Y. W. Sha, et al, Phosphorus, Sulfur and Silicon. 1995,101(1-4): 117-123<br />

2. H. Li, W. J. Zhao, S. X. Cao, et al. Chem. J. Chinese Universities, 2004, 25, 1866.<br />

3. Zhou N.; Lu K.; Liu Y. et al. Rapid Commun. Mass Spectrom. 2002,16,919.<br />

251


P-137<br />

CAN FOUR MEMBERED HETEROPHOSPHETE STRUCTURES EXIST?<br />

“HETEROGEN” HETERO ANTIAROMATICITY AS A DESTABILIZING EFFECT<br />

Zoltán Mucsi, 1 Tamás Körtvélyesi, 2 Tibor Novák 3 , György Keglevich 1<br />

1 Department of Organic Chemical Technology, Budapest University of Technology and Economics<br />

H-1521 Budapest, Hungary<br />

2<br />

Department of Physical Chemistry, University of Szeged, H-6701 Szeged, Hungary<br />

3<br />

Research Group of the Hungarian Academy of Sciences at the Department of Organic Chemical Technology, BUTE,<br />

H-1521 Budapest, Hungary<br />

Four-membered heterophosphetes (Figure 1), existing as two conformers (1A and 1B) are<br />

thermodynamically unstable and they readily undergo ring-opening reactions to form oxo-, imino-<br />

or thiaphosphoranes 3 [1]. This may be one of the reasons that earlier synthetic attempts to produce<br />

heterophosphetes have mostly failed. Their saturated counterparts heterophosphetanes (2A and 2B),<br />

which are well-known intermediates of the Wittig reaction are, however, stable and cannot undergo<br />

ring-opening reaction. The question arises, what the reason for this sharp difference is between the<br />

stability of 1 and 2.<br />

Our results based on quantum chemical calculations revealed, that the instability of 1A and 1B<br />

should be attributed to their antiaromatic character, originated form the conjugation of the empty<br />

d-orbitals of the P atom and the occupied pz orbital of the Y moiety. This type of antiaromaticity is<br />

defined as a “heterogenic” antiaromaticity. Compounds 1A with equatorial Y possess a more<br />

considerable extent of antiaromatic character, than species 1B with axial Y, which practically can<br />

be considered as non-aromatic compounds. It has been shown, that strong electron withdrawing<br />

substituents (F, Cl, CN) bound to the phosphorus atom are able to stabilize the ring system. The<br />

thermodynamic stability of 1A and 1B has been studied systematically and the extent of<br />

antiaromaticity of these species was quantified by a linear aromatic and antiaromatic scale (Figure<br />

2). An overall 3D potential surface, as well as an antiaromaticity % surface of 1 have been<br />

discovered.<br />

X<br />

Y P<br />

X<br />

X<br />

1A<br />

1B<br />

Equatorial Y Apical Y<br />

X<br />

Y P<br />

2A<br />

X<br />

X<br />

X X<br />

X X<br />

Y P X Y P X<br />

XX<br />

X X<br />

Y P X Y P X<br />

X = F, Cl, CN<br />

Y = O, NH, S<br />

Figure 1. Transformations of heterophosphetes (1A<br />

and 1B) and heterophosphetanes (2A and 2B)<br />

2B<br />

3<br />

4<br />

1B<br />

1A<br />

252<br />

NH,F<br />

NH,Cl<br />

NH,CN<br />

O,F<br />

O,Cl<br />

O,CN<br />

S,F<br />

S,Cl<br />

S,CN<br />

NH,Cl<br />

S,F<br />

O,F<br />

non-aromatic<br />

character<br />

S,Cl<br />

O,Cl<br />

O,CN<br />

S,CN<br />

-40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15<br />

antiaromaticity % aromaticity %<br />

Reference<br />

[1] Gy. Keglevich, H. Forintos, T. Körtvélyesi, Current Org. Chem. 8, 1245 (2004).<br />

NH,F<br />

Figure 2. Computed aromaticity and antiaromaticity<br />

scale for 1A and 1B<br />

NH,CN


P-155<br />

SYNTHESIS AND MECHANISM STUDIES ON AMIDE BOND BY<br />

HEXAMETHYLPHOSPHORAMIDE(HMPA)<br />

Jianbo Hou 1 , Tongjian Wang 1 , Kan Lin 1 , Guo Tang 1 , Yufen Zhao 1,2<br />

1 Department of Chemistry, The Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and<br />

Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China; 2 The Key Laboratory of Bioorganic<br />

Phosphorus Chemistry, Department of Chemistry, School of Life Science and Engineering, Tsinghua University,<br />

Beijing 100084, P. R. China<br />

Recently, organic phosphorous coupling reagents (eg. triphenylphosphine) have been applied<br />

for the synthesis of peptide derivatives [1-3]. In this paper HMPA was used as amide bond coupling<br />

reagent, and the mechanism was studied.<br />

Triphosgene was dissolved in solvent and was added dropwise to a mixed solution of<br />

carboxylic acid and HMPA at 0 ℃, the phosphinic carboxylic mixed anhydride was formed. And<br />

then the above solution was added dropwise to the amine solvent at 0 ℃. The amide bond was<br />

formed. After extraction, HMPA could be recycled.<br />

The reaction was traced by 31 P NMR(Figure 1).<br />

O<br />

P<br />

N N N<br />

+ R<br />

Cl<br />

1COOH O<br />

C<br />

a b<br />

R1 =-CH3 ,-C6H5 Cl<br />

Cl<br />

O<br />

C O<br />

P Cl<br />

N N<br />

N<br />

Scheme 1.<br />

253<br />

O<br />

R<br />

O<br />

2NH2 P<br />

R2NH C + N N + HCl<br />

N<br />

R 1<br />

R 2 =-CH 2 C 6 H 5 ,-C 6 H 5 ,-CH 2 CH 2 CH 2 CH 3<br />

Figure 1: The Stack 31 P NMR Spectra of Synthesis amide bond<br />

a:Hexamethylphosphoramide; b:phosphinic carboxylic mixed anhydride;<br />

c:Hexamethylphosphoramide (recycled) .<br />

Project was supported by NNSFC (No. 200572061)<br />

References<br />

[1] Appel R.,Roland M., Chem. Ber., 1977, 110, 2385.<br />

[2] Appel R., Heinfried S., Chem. Ber., 1977, 110, 2382.<br />

[3] Tang G., Zhou G. J., Zhao Y.F., Chin. Chem. Lett., 2005, 16(3), 385-388.<br />

b<br />

a<br />

c<br />

RNH 2 in Solvent was Dropwised<br />

C 3Cl 6O 3 in Solvent was Dropwised<br />

Solvent and HMPA and RCOOH<br />

c


P-163<br />

INTERACTION OF 2H-1,2,3-DIAZAPHOSPHOLE WITH DIOLS<br />

*M.A.Khusainov, R.A.Cherkasov, N.G.Khusainova, , O.A.Mostovaya, *I.F.Gataulina<br />

Kazan State University, Kremlevskaya str.18, Kazan, 420008,Russia;<br />

*Kazan State Technological University, K.Marks str.68, Kazan, 420015, Russia<br />

e-mail:narkis.khusainova@ksu.ru<br />

The heterocyclic derivatives of two-coordinated phosphorus containing σ2 λ3 –P=C bond<br />

interaction with diols has been studied.. We have found (by kinetic 31P NMR spectroscopy) that the<br />

reaction of 5-methyl-2-phenyl-2H-1,2,3- diazaphosphole 1 with catechol 2 furnishes a mixture of<br />

tautomeric diazaphospholene 3 and hidrospirophosphorane 4. At increasing temperature fill<br />

room temperature the 3 and 4 adducts undergo fragmentation into phenylhydrazone acetone 5,<br />

symmetric hydrospirophosphorane 6 and phosphite 7 .<br />

Ph<br />

N<br />

P N<br />

+<br />

H<br />

N<br />

Ph N<br />

OH<br />

OH<br />

N<br />

N<br />

Ph<br />

P<br />

O<br />

O O<br />

P<br />

O O<br />

H<br />

6<br />

254<br />

OH<br />

N<br />

Ph<br />

N<br />

P H<br />

O O<br />

1 2<br />

3<br />

4<br />

5<br />

+<br />

Reaction of 2-acetyl-5-metyl-2H-1,2,3-diazaphosphole with (rac)butane-2,3-diol at temperature<br />

below 0oC leads to formation of asymmetrical compounds: hydrospirophosphorane containing<br />

both diazaphospholene and dioxaphospholane ring system and 1,2,3-diazaphospholene. Then its<br />

interconversion results in fragmentation of the diazaphospholene ring in these compounds with the<br />

formation of the symmetrical hydrospirotetraoxaphosphorane, β-hydroxyphosphite, hydrazone and<br />

symmetrical bisphosphite as the main products [1]. Termodynamical stability of all these reaction<br />

members was analysed by calculation using methods of quantum chemistry (PM3 and<br />

HF/6-31G(d,p) methods) for the first time. Instability of the hydrospirophosphorane and the<br />

1,2,3-diazaphospholene is confirmed by quantum chemical calculations. On the basis of<br />

thermodynamical characteristics initialy formed products are less expedient in comparison with<br />

symmetrical hydrospirotetraoxaphosphorane, its tautomer and symmetrical bisphosphite.<br />

Calculations confirm that tautomeric equilibrium in tri- and penta-coordinated phosphorus is shifted<br />

towards the hydrospirophosphorane. Response mechanism as nucleophilic 1,2-addition of diol to<br />

P=C bond was inferred from preliminary calculation and analysis of charge density in atoms of<br />

reactive center. Oxiorganical group attacks atom of two-coordinated phosphorus regioselectively<br />

with increasing in phosphorus coordination.<br />

+<br />

O<br />

P O<br />

O<br />

Rererence<br />

1. Khusainova N.G., Mostovaya O.A., Azancheev N.M., et.al., Mend. Comm. 2004, N5, P. 2<br />

7


P-169<br />

LOCATING THE REACTION PATHS OF N-(DIALKYLOXYPHOSPHORYL) AMINO<br />

ACIDS BY NUDGED ELASTIC BAND(NEB) METHOD<br />

NI, F.; Zeng, Z. P.; Zhao, Y. F *<br />

Key Lab of Chemical Biology of Fujian Province, Department of Chemistry, Xiamen University, Xiamen, 361005,<br />

China<br />

N-(dialkyloxyphosphoryl)amino acids(NPAAs) are active compounds which can undergo many<br />

important reactions such as peptide formation, esterification, phosphoryl group transfer, hydrolysis<br />

et al. in mild water/alcohol solution 1 . NPAAs with different amino acid side chains show different<br />

reactivity remarkably and it was testified that a penta-coordinated intermediate plays an important<br />

role during above reactions 2 . Hence, theoretical examination of reaction paths between NPAAs and<br />

their intermediates are of great interest. An efficient and successful method for obtaining the<br />

reaction paths is one known as “nudged elastic band” (NEB) 3 . In this work, 9<br />

N-(dimethyloxyphosphoryl) amino acids (A,F,G,I,L,V,W, Y,M) models were studied by NEB<br />

method implemented in Dynamo 4 with AM1,PM3,MNDO and PDDG 5 respectively and the results<br />

were compared with those by Berny method implemented in Gaussian03 6 with DET at<br />

6-31G(d,p)level.<br />

The calculation shows that (i) NEB method(with AM1 or MNDO ) gave good energy profiles<br />

along the reaction paths between NPAAs and their intermediates.(see Figure) (ii)Transition state<br />

structures alone the reaction paths found by NEB method with AM1 are well close to those found<br />

by Berny method implemented in Gaussian03 with DET at 6-31G(d,p) level.<br />

Energy<br />

(kJ/mol)<br />

MeO<br />

MeO<br />

O<br />

P<br />

MeO<br />

MeO<br />

O<br />

P<br />

H<br />

N CH C<br />

NPPA<br />

H<br />

TS<br />

R<br />

O<br />

H<br />

N<br />

O<br />

H<br />

O<br />

R<br />

OH<br />

255<br />

HO<br />

MeO<br />

Reaction coordinate (Ǻ)<br />

O<br />

P<br />

OMe<br />

O<br />

N<br />

H<br />

H<br />

R<br />

Intermediate<br />

Figure Reaction paths between NPAAs and their penta-coordinated intermediates located<br />

by NEB method with AM1 ( Data of F,I,W not show here, DMP:<br />

dimethyloxyphosphoryl group, Y,V, M, L, G, A, F, I, W: single letter abbreviation


Reference<br />

1. Cheng, C. M.; Liu, X. H.; Li, Y. M.; Ma, Y.; et al.Origins of Life and Evolution of the Biosphere 2004, 34 (5), 455<br />

2. Fu, H. ; Li, Z. L. ; Zhao,Y. F. ; et al. Journal of The American Chemical Society 1999, 121 (2), 291<br />

3. Jónsson,H.; Mills, G.; Jacobsen, K.W.; in Classical and Quantum Dynamics in Condensed Phase Simulations, ed.<br />

Berne, B.J.; Ciccotti, G.; Coker, D.F. World Scientific, 1998<br />

4. Field, M. J.; Albe, M.; Bret, C.; et al. Jounal of Computational Chemistry 2000, 21(12), 1088.<br />

5. Repasky, M. P.; Chandrasekhar, J; Jorgensen; W. L. Jounal of Computational Chemistry 2002, 23(16), 1601<br />

6. Gaussian 03, Revision C.02 Frisch, M. J.; Trucks, G. W.; Schlegel, H. B.et al, Gaussian, Inc., Wallingford CT,<br />

2004.<br />

256


P-194<br />

THE FORMATION MECHANISM OF THE α-HYDROXYPHOSPHONATE: A<br />

THEORETICAL STUDY<br />

Zeng Zhiping Fang Hua Zhao Yufen*<br />

The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, Xiamen University, Xiamen<br />

361005, China. E-mail: yfzhao@xmu.edu.cn<br />

α-hydroxyphosphonate, showing definite bioactivities, are a useful intermediate for many<br />

organophosphorus derivative. But its formation mechanism is unknown until now. In our lab, we<br />

have synthesize a lot of α-hydroxyphosphonates and they are all meso, so how to control the charity<br />

of the α-hydroxyphosphonate is very crucial. The mechanism may answer this question for us, and a<br />

detail study is carrying out.<br />

A simple theoretical model of our reaction is shown below.(study reaction).and one of the<br />

DFT method (b3lyp) is applied to capture the transition state. All the calculation is based on<br />

6-311g* basis set .<br />

O<br />

O<br />

1.654<br />

study reaction:<br />

O<br />

P<br />

HO H OH<br />

1.654<br />

P<br />

O<br />

1.615<br />

O<br />

O P 1.463<br />

1.615<br />

1.410<br />

0.970<br />

1.644<br />

O<br />

BASE<br />

BASE<br />

E(kcal.mol-1 Δ<br />

)<br />

117.2<br />

reactant<br />

OH<br />

P<br />

HO OH<br />

10.21<br />

0.4<br />

4TS<br />

5TS<br />

257<br />

O<br />

C<br />

H H<br />

four-ring TS<br />

139.9<br />

fast<br />

32.32<br />

product<br />

1.637<br />

unfavorable<br />

five-ring TS<br />

favorable<br />

O OH<br />

HO P C H<br />

OHH<br />

O<br />

O<br />

2.072<br />

C<br />

P<br />

O<br />

O<br />

1.631<br />

O<br />

1.606<br />

1.016<br />

P<br />

2.082<br />

1.518<br />

1.557<br />

1.345<br />

O<br />

1.569<br />

O<br />

1.450<br />

1.445<br />

O<br />

C<br />

1.298<br />

TS<br />

O<br />

1.624<br />

O<br />

1.610<br />

P<br />

1.482<br />

1.827<br />

1.087<br />

C 1.416<br />

O<br />

1.097 0.966<br />

O<br />

O<br />

H O<br />

P H<br />

H<br />

H<br />

O<br />

C O<br />

H<br />

O<br />

H<br />

O<br />

H<br />

H<br />

H<br />

OH<br />

HO<br />

H<br />

H<br />

P O<br />

H<br />

C O<br />

P<br />

O<br />

C OH<br />

The QM study result shows that: the reaction pathway may encounter an interconversion from<br />

four-coordinate to three-coordinate phosphorus. And then a five-ring transition state is formed to<br />

reduce the activative reaction energy greatly(100kcal.mol-1). Also, the experiment will be designed<br />

to check our suppose later on.<br />

Reference<br />

[1]. M. J. Frisch, G. W. Trucks, H. B. Schlegel, G. E. Scuseria,M. A. Robb, J. R. Cheeseman, J. A. Montgomery, Jr., T.<br />

Vreven, Gaussian, Inc., Wallingford CT, 2004.


P-182<br />

31 P NMR ASSAY OF THE ENANTIOMERIC EXCESS BY USING QUININE AS CHIRAL<br />

SOLVATING AGENT<br />

Liu Ruoyu 1 , Ye Yong 1 , Chen Xiaolan , Liao Xincheng 1 , Zhao Yufen 1,2<br />

(1.The Key Laboratory of Chemical Biology and Organic Chemistry of Henan Province, Department of Chemistry,<br />

Zhengzhou University, Zhengzhou 450052, China;<br />

2.The Key Laboratory for Bioorganic Phosphorus Chemistry and Chemical Biology, Ministry of Education, Department<br />

of Chemistry School of Life Sciences and Engineering, TsinghuaUniversity, Beijing 100084, China)<br />

Phosphonates and phosphonic acids have become increasingly important due to their diverse<br />

and useful biological properties with possible applications ranging from medicine to agriculture.<br />

But the lack of simple and accurate methods for the determination of enantiomeric excess is<br />

currently the main problem in designing stereocontrolled syntheses for such as compounds.We<br />

recently are engaged in exploring methods for the asymmetric synthesis of some phosphonates and<br />

establishing a reliable method for the determination of enantiomeric purity , enantiomeric excess<br />

and absolute configuration.<br />

31 P NMR spectroscopy is a very convenient tool for determination of the enantiomeric excess of<br />

organophosphorus compounds because of the large chemical dispersion and the simplicity of the<br />

broad band 1 H decoupling spectra.<br />

High quality 31 P NMR spectrum, for determation of the enantiomeric excess of phosphonate<br />

esters, was obtained by using quinine as a chiral solvating agent.<br />

The molar ratio of phosphonate esters :quinine varise from 1:0.5 to 1:7. It was found that the best<br />

result could obtained in ratio 1:1. Maybe other factors such as temperature, time still need to be<br />

invested for better results.<br />

For the chiral solvating agent is expensive ,we also try to find some appropriate methods to<br />

recycle it.<br />

Fig. 31 P NMR spectrum of a chiral<br />

organophosporus in the presence of<br />

quinine.<br />

References<br />

[1] Alina Maly, Barbara Lejczak and Pawel Kafarski :Tetrahedron: Asymmetry 14 (2003) 1019–1024<br />

258


Symposium 6<br />

Phosphorus Compound and Medicinal Chemistry


KL-9<br />

A CORRELATION OF ANTIRESORPTIVE STRUCTURE ACTIVITY RELATIONSHIPS<br />

IN NITROGEN-CONTAINING BISPHOSPHONATES CO-CRYSTALIZED IN FARNESYL<br />

DIPHOSPHATE SYNTHASE SUGGESTS THEIR BINDING MODE<br />

F. H. Ebetino* 1 , B. L. Barnett 4 , B. A. Kashemirov 2 , C. Roze 2 , C. E. McKenna 2 , J. Hogan 2 , A. G. Evdokimov 3 , M. E.<br />

Pokross 3 , J. Dunford 5 , Z. Xia 5 , K. Kavanagh 5 , R. G. G. Russell 5<br />

1New Drug Development, Procter and Gamble Pharmaceuticals, Mason, 2Chemistry Department, University of<br />

Southern California, Los Angeles, CA, 3New Drug Development, Procter and Gamble Pharmaceuticals, Mason, OH,<br />

4Chemistry Department, University of Cincinnati, Cincinnati, OH, United States, 5Botner Research Centre, Oxford<br />

University, Oxford<br />

Investigations continue to better understand the precise mechanism of action of bisphosphonates<br />

that contributes to their ability to be utilized as excellent therapies for metabolic bone diseases such<br />

as osteoporosis. Both the biochemical and mineral targets and structure-activity relationships are<br />

being established. Farnesyl diphosphate synthase (FDPS) is a metabolic enzyme that has been<br />

demonstrated to be a major molecular target of nitrogen-containing bisphosphonates (N-BPs). It has<br />

been known for many years that minor changes to the structure of N-BPs can dramatically affect<br />

their antiresorptive potency. However, a detailed explanation has been lacking. Progress on the<br />

generation of co-crystal structures of this enzyme in the presence of several potent and weak N-BP<br />

inhibitors has provided an opportunity to examine the precise way in which bisphosphonates act on<br />

FDPS. The active site of FDPS contains two substrate binding sites (for GPP/DMAPP and for IPP).<br />

The current protein crystallographic evidence shows that risedronate and zoledronate occupy the<br />

GPP/DMAPP site in a very similar manner correlating with their very potent enzyme inhibition<br />

(IC50’s 4.1, 5.7 nM respectively). Other clinically relevant bisphosphonates such as alendronate, and<br />

ibandronate seem to occupy this site in a less optimal manner (IC50’s 325, 23 nM respectively). We<br />

have therefore begun to investigate whether wide ranging inhibitory potency differences observed<br />

among N-BPs in vivo and as inhibitors of the human enzyme can be explained by key interactions<br />

within the GPP/DMAPP site.<br />

Additional co-crystal data on several potent and weakly active N-BPs have been assigned. These<br />

structures all closely compare with the PCP binding characteristics of risedronate. Also, key<br />

interactions of the critical nitrogen residue with Threonine 201 –OH and the Lysine 200 backbone<br />

C=O were observed with all potent N-BPs exhibiting appropriate NHO angle of greater than 125<br />

degrees and a N-O distance of 3.1A or less. However, the weakly active N-BPs, NE-11809 and NE<br />

58051, NE58086 display longer N-O distances of 7.01A, 4.58A, and 4.28 respectively, explaining<br />

their lack of activity. Furthermore, we have successfully predicted these binding modes utilizing<br />

computational modeling techniques. Additional active analogs were also studied. Thus, NE-11808,<br />

NE-11807 and NE-58025 exhibited similar H-bonding characteristics involving the nitrogen of the<br />

N-BP. Comparative analyses of structurally and clinically relevant N-BP’s is now possible with<br />

these techniques. With the correlations observed, the GPP site and the accessibility of these<br />

hydrogen bonding sites to the nitrogen moiety is further established as a key explanation for the<br />

differences in potency of N-BPs. These data also suggest contrasting 3-D structural requirements<br />

for the biochemical effects of the nitrogen containing bisphosphonates vs the shape and orientation<br />

necessary for these agents to exhibit high bone mineral affinity.<br />

259


KL-10<br />

SPECIFICITY OF PHOSPHOTHREONINE RECOGNITION BY FHA DOMAINS<br />

Ming-Daw Tsai<br />

Institute of Biological Chemistry and Genomics Research Center, Academia Sinica, Taiwan, and Ohio State University,<br />

Columbus, Ohio, USA<br />

Recently a phosphorylation-dependent recognition domain, known as forkhead-associated (FHA)<br />

domain, has been shown to mediate protein-protein interactions in many cellular processes of<br />

different species. While the sequence homology of FHA domains is relatively low (∼ 20%),<br />

several tertiary structures solved in our lab reveal a remarkably similar folding, consisting of<br />

-strands linked by several loops to form two large twisted antiparallel -sheets folded into a<br />

-sandwich.<br />

A wealth of information on the ligand specificity of FHA domains has been obtained by use of<br />

short phosphopeptides and phosphopeptide libraries consisting of 6-15 residues. These studies<br />

with short phosphopeptides showed that, while the Rad53 FHA1 domain specifically recognizes the<br />

phosphothreonine peptides containing Asp at +3 position (pTXXD), the Rad53 FHA2 domain is<br />

able to bind both Thr- and Tyr-phosphorylated peptides containing a hydrophobic amino acid at +3<br />

and +2 position (pTXXL/I and pYXL/I), respectively.<br />

Interestingly, unlike other FHA domains, the ligand recognition by human Ki67 FHA domain is<br />

not dictated by any of the conserved motifs mentioned above, but involves an extended binding<br />

surface. The FHA domain of human Ki67 interacts with hNIFK, recognizing a 44 residue<br />

fragment, hNIFK(226-269), phosphorylated at T234. Here we show that high affinity binding<br />

requires sequential phosphorylation by two kinases, CDK1 and GSK3, yielding pT238, pT234, and<br />

pS230. We determined the solution structure of Ki67FHA in the complex with the triply<br />

phosphorylated peptide hNIFK(226-269)3P, revealing not only local recognition of pT234 but<br />

also the extension of the -sheet of the FHA domain by the addition of a -strand of hNIFK. The<br />

present structure represents an important complex of an FHA domain with a biologically relevant<br />

binding partner, provides novel insight into ligand specificity and potentially links the cancer<br />

marker protein Ki67 to a signaling pathway associated with cell-fate specification.<br />

Reference<br />

1. “Structure and Function of A New Phosphopeptide Binding Domain Containing the FHA2 of Rad53” by Hua Liao,<br />

In-Ja L. Byeon, and Ming-Daw Tsai, J. Mol. Biol. 294, 1041-1049 (1999).<br />

2. “FHA Domain-Ligand Interactions: Importance of Integrating Chemical and Biological Approaches”. Anjali<br />

Mahajan, Chunhua Yuan, Brietta L. Pike, Jorg Heierhorst, Chi-Fon Chang, and Ming-Daw Tsai, J. Am. Chem. Soc. 127,<br />

14572-14573 (2005).<br />

3. “Sequential Phosphorylation and Multisite Interactions Characterize Specific Target Recognition by the FHA<br />

Domain of Ki-67”, by In-Ja L. Byeon, Hongyuan Li, Haiyan Song, Angela M. Gronenborn, and Ming-Daw Tsai,<br />

Nature Structural and Molecular Biology 12, 987-993 (2005).<br />

260


KL-18<br />

PHOSPHONATE ANALOGS FOR DRUG DESIGN<br />

C. E. McKenna 1 *, B. A. Kashemirov 1 , T. G. Upto n1 , L. W. Peterson 1 , J. Bala, K. M. Błażewska 1 , C. Sucato 1 , M. F.<br />

Goodman 1 , S. H. Wilson 2 , L. C. Pedersen 2 , F.H. Ebetino and J. M. Hilfinger 3<br />

1 Department of Chemistry, University of Southern Calif., Los Angeles, CA 90089 USA<br />

2 Laboratory of Structural Biology, NIEHS, Research Triangle Park, NC USA 27709<br />

3 TSRL, Inc., Ann Arbor, MI 48108 USA<br />

Phosphonate analogs mimicking naturally occurring biophosphates are useful tools for probing<br />

enzyme structure and function, providing insights that can inform drug design. Three examples will<br />

be given, based on recent work in our laboratory. 1) DNA polymerase β is a key DNA repair<br />

enzyme that is a potential new target for antineoplastic drugs. To examine leaving-group effects on<br />

the nucleotidyl transfer mechanism and fidelity of DNA polymerase β, we synthesized a series of<br />

β,γ-CXY bisphosphonic acid analogs of dGTP, in which X, Y = H, F, Cl, Br or Me. Structural<br />

evidence suggests that the analogues bind in essentially the native conformation, making them<br />

suitable substrates for probing linear free energy relationships (LFERs) in transientkinetics<br />

experiments. In addition, docking experiments together with crystal structure studies of a ternary<br />

complex of DNA pol β with a primer, template and β,γ-CHF dGTP suggest that a fluorine-hydrogen<br />

bridging interaction within the dNTP binding pocket contributes to stereospecific binding of one of<br />

the two β,γ-CHF diastereomers. 2) Synthesis, and characterization of new analogs of<br />

bisphosphonates effective in bone disease will be discussed. 3) The synthesis and preliminary<br />

evaluation of stereoisomeric depeptide prodrugs of cidofovir (HPMPC) a broad-spectrum antiviral<br />

agent that is used to treat AIDS-related CMV retinitis, will be described. These analogs permit an<br />

assessment of peptide stereochemistry on prodrug transport and activation to parent drug.<br />

261


KL-20<br />

CHIRAL FUNCTIONALIZED PHOSPHONATES WITH BIOLOGICAL SIGNIFICANCE<br />

Chengye Yuan<br />

State Key Laboratory of Bio-organic and Natural Products Chemistry,<br />

Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences.<br />

Shanghai 200032, China.<br />

As a class of organic molecules with potential biological activities, functionalized phosphonates<br />

aroused interests of organic chemists working on the medicinal and allied fields. In the first part of<br />

this paper, asymmetric synthesis of amino-phosphonic acids based on 1,2- and 1,3-H migration was<br />

demonstrated. Both difluoro- and trifluoromethylated counterparts were also reported. Our recent<br />

attention is focused on the chemoenzymatic approach to title compounds. In addition to the<br />

structural effect of substract on bio-catalytical reduction by baker’s yeast, we have also developed a<br />

Candida Antarctica Lipase B (CALB)-catalyzed acetylation as well as Candida rugosa Lipase<br />

(CRL)-catalyzed hydrolysis in organic media in combination with immobilized mucormichei (IM)<br />

mediated hydrolysis for the preparation of optically pure hydroxyalkylphosphonates and their<br />

derivative. A group of biologically active phosphorus compounds including phosphocarnitine,<br />

phosphogabob and fosfomycine was prepared. Dynamic kinetic resolution (DKR) was studied in<br />

the enzymatic resolution of functionalized phosphonates. Both entiomers of<br />

2-oxo-4-hydroxy-4-alkyl/aryl alkane phosphonates prepared by enzymatic method are converted<br />

catalytically to chchiral 2-phosphoryl-3-oxo-5-alkyl/aryltetrahydrofuranes by Rhodium acetate via<br />

intramolecular O-H insertion reaction. The presence of β-ketophosphonate skeleton in these<br />

heterocyclics allowed this cyclic Hornor-Wadswath-Emmons reaction with aldehyde to furnish<br />

chiral α,β-unsaturated ketone, a new class of building block in organic synthesis.<br />

Acknowlegements: The Project was supported by National Natural Science Foundation of China.<br />

(20372076, 20672132)<br />

262


IL-19<br />

STEREOCONTROLLED SYNTHESIS OF PHSOPHOROTHIOATE DNA AND RNA BY<br />

THE OXAZAPHOSPHOLIDINE APPROACH<br />

Takeshi Wada<br />

Department of Medical Genome Sciences, Graduate School of Frontier Sciences,The University of TokyoBioscience<br />

Building 702, 5-1-5 Kashiwanoha, Kashiwa 277-8562, Japan Tel: +81-4-7136-3612, Fax: +81-4-7136-3612,<br />

E-mail: wada@k.u-tokyo.ac.jp<br />

In recent years, a great deal of attention has been focused on small DNA and RNA molecules as<br />

therapeutic agents for selective inhibition of gene expression. [1] Oligonucleotide therapeutic agents,<br />

such as antisense DNAs, ribozymes, and siRNAs act on a target mRNA and arrest the protein<br />

synthesis. In order to stabilize these molecules in cells, a chemical modification of internucleotidic<br />

phosphodiester bonds is quite effective. Phosphorothioate DNA is one of the most widely used<br />

backbone-modified antisense DNAs. [2] However, the currently used phosphorothioate DNAs are<br />

random mixtures of diastereomers since the chirality of the phosphorous atom cannot be controlled<br />

by use of the current synthetic methods. [3] Because the properties of phosphorothioate DNAs, such<br />

as hybridization abilities with mRNA, affinities to proteins, and tolerances against nucleases are<br />

considered to be affected by the chirality of the phosphorous atoms, it is an important subject to<br />

develop an efficient method for obtaining stereoregulated phosphorothioate DNAs. Quite recently,<br />

we have developed a novel approach for the stereocontrolled synthesis of phosphorothioate DNAs<br />

and RNAs by the use of nucleoside 3’-O-oxazaphospholidine derivatives as monomers and<br />

N-(cyanomethyl) ammonium salts as activators (oxazaphospholidine approach). [4-12] In this paper, I<br />

wish to describe a recent progress of stereocontrolled synthesis of P-chiral DNA and RNA analogs,<br />

which are useful as oligonucleotide therapeutic reagents, by the oxazaphospholidine approach.<br />

An oxazaphospholidine approach for the stereocontrolled synthesis of phosphorothioate DNAs<br />

and RNAs is outlined in Scheme 1. Properly protected nucleosides 1 were allowed to react with<br />

cyclic phosphorochloridite derivatives 2 to give the corresponding nucleoside 3’-cyclic<br />

phosphoramidite monomers 3 in good yields with high diastereoselectivities. The stereoselectivity<br />

of the reaction was found to be highly dependent on the nature of the substituent groups (R 1 , R 2 , and<br />

R 3 ) on the oxazaphospholidine ring of 2. Thus obtained diastereopure nucleoside 3’-cyclic<br />

phsophoramidites 3 were condensed with nucleosides 4 bearing the free 5’-OH in the presence of an<br />

263


acid activator. When N-(cyanomethyl)pyrrolidinium triflate (CMPT) was employed as an activator,<br />

the condensation reaction proceeded smoothly and gave the corresponding dinucleoside phosphite<br />

intermediate 5 with excellent diastereoselectivity. In contrast to this fact, the condensation in the<br />

presence of a conventional activator, 1H-tetrazole, proceeded very slowly with low<br />

diastereoselectivity. After successive N-acetylation and P-sulfurization, the diastereopure fully<br />

protected dinucleoside phosphorothioates 6 were obtained in good yields. Finally, all of the<br />

protecting groups were removed by a conventional procedure to give the diastereopure dinucleoside<br />

phosphorothioates 7 in good yields. The present methodology was also applied to the solid-phase<br />

synthesis of stereoregulated phosphorothioate DNAs. The diastereopure phosphorothioate DNAs<br />

(4–10mer) were obtained in good yields. Work on the solid-phase synthesis of phosphorothioate<br />

RNAs is now in progress.11 This approach would be applicable to the synthesis of various P-chiral<br />

oligonucleotide analogs other than phosphotothioates such as boranophaosphate DNA. [13,14] Further<br />

studies are now underway in this direction.<br />

References<br />

[1]. Therapeutic Oligonucleotides; Cho-Chung, Y. S.; Gewirtz, A. M.; Stein, C. A.; New York Academy of Sciences:<br />

New York, 2004; and references therein.<br />

[2]. Levin, A. A. Biochim. Biophys. Acta 1999, 1489, 69-84.<br />

[3]. Zon, G.; Stec, W. J. In Oligonucleotides and Analogues: A Practical Approach; Eckstein, F., Ed.; IRL Press: Oxford<br />

University, 1991; pp 87-108. Zon, G., In Protocols for Oligonucleotides and Analogs, Methods in Molecular Biology,<br />

Vol. 20, Agrawal, S., Ed.; Humana Press: Totowa, New Jersey, 1993; pp 165-189.<br />

[4]. Oka, N., Wada, T., Saigo. K. Nucleic Acids Res. Suppl. 2001, 1, 13-14.<br />

[5]. Wada, T., Oka, N., Saigo. K. Nucleic Acids Res. Suppl. 2002, 2, 153-154.<br />

[6]. Oka, N., Wada, T., Saigo. K. J. Am. Chem. Soc. 2002, 124, 4962-4963.<br />

[7]. Oka, N., Wada, T., Saigo. K. J. Am. Chem. Soc. 2003, 125, 8307-8317.<br />

[8]. Wada, T., Oka, N., Saigo. K. Nucleic Acids Res. Suppl. 2003, 3, 109-110.<br />

[9]. Wada, T., Oka, N., Saigo. K. Nucleos. Nucleot. Nucl. Acids 2003, 22, 1171-1173.<br />

[10]. Oka, N., Wada, T., Saigo. K. Nucleos. Nucleot. Nucl. Acids 2003, 22, 1411-1413.<br />

[11]. Wada, T., Fujiwara, S., Sato, T., Oka, N., Saigo. K. Nucleic Acids Res. Symp. Ser. 2004, 48, 57-58.<br />

[12]. Wada, T. Front. Org. Chem. 2005, 1, 41-61.<br />

[13]. Oka, N., Maizuru, Y., Shimizu, M., Saigo, K., Wada, T. Nucleic Acids Symp. Ser. 2005, 49, 131-132.<br />

[14]. Wada, T., Maizuru, Y., Oka, N., Saigo, K. Bioorg. Med. Chem. Lett. 2006, 16, 3111-3114<br />

264


IL-20<br />

3',5'-CYCLIC DIGUANYLIC ACID AND RELATED COMPOUNDS: SYNTHESIS,<br />

CHEMICAL PROPERTIES, AND BIOLOGICAL ACTIVITIES<br />

Yoshihiro Hayakawa<br />

Graduate School of Information Science and CREST of JST, Nagoya University, Chikusa, Nagoya 464-8061, Japan<br />

We synthesized cyclic bis(3'–5')diguanylic acid (c-di-GMP) and related compounds and<br />

investigated their biological activities, such as inhibitory effects on biofilm formation of some<br />

bacteria and on basal and growth factor-stimulated human colon cancer cell proliferation.<br />

First, we developed the high-efficient synthesis of c-di-GMP outlined in Scheme 1, which can<br />

provide a few grams of the target compound by one-cycle synthesis. The success was produced<br />

mainly by the use of the following useful method and strategy. The first is the use of the<br />

di-tert-butylsilanediyl group for protection of 3’- and 5’-hydroxy groups of guanosine, which can be<br />

selectively removed from the 3',5'-O-di-tert-butylsilanediyl-2'-O-TBDMS guanosine intermediate<br />

by using a mixture of HF•pyridine complex and pyridine. This strategy allowed 100%<br />

regioselective production of the 2'-O-TBDMS guanosine intermediate. The second is employment<br />

of our original phosphoramidite method using imidazolium perchlorate as a promoter in the<br />

presence of molecular sieves 3A for the formation of a linear (3’–5’)diguanylic acid intermediate.<br />

This method gave the desired product in a higher yield than the existing standard phosphoramidite<br />

method using 1H-tetrazole as a promoter. Fundamental strategies used in this synthesis could be<br />

applied to the synthesis of a variety of c-di-GMP artificial analogs with modified nucleobases,<br />

sugars, and backbones. Actually, we have synthesized c-GpdGp, c-GpIp, c-GpAp, and c-GpGps<br />

by means of strategies somewhat modified from those used in the method shown in Scheme 1.<br />

Investigation on stability of c-di-GMP and its analogs revealed that these cyclic diribonucleotides<br />

are stable in a human serum solution, an acid solution or a base solution. Thus, c-di-GMP was left<br />

intact in a 100 mM or 200 mM human serum solution at 37 °C for 24 h. This nucleotide also<br />

underwent no decomposition by treatment with a pH 3 hydrochloric acid or a pH 10 sodium<br />

hydroxide solution at 25 °C for 1 h or at 100 °C for 10 min. The c-di-GMP analogs have similar<br />

stability to c-di-GMP.<br />

We next examined biological activities of c-di-GMP and its analogs. As a result, we found that<br />

c-di-GMP appears to act as a second messenger in bacteria and shows a variety of important<br />

bioactivities. Among them, the particularly attractive one is the regulation of biofilm formation<br />

and infection to host cells by various bacteria; that is, inhibition of biofilm formation of S. aureus, P.<br />

aeruginosa and E. coli; reduction of infection of S. aureus to HeLa cells; reduction of the virulence<br />

of biofilm-forming S. aureus strains in a mouse model of mastitis infection in vivo; and activation of<br />

immune response. According to results that we observed, it may be speculated that c-di-GMP acts<br />

in biofilm formation and infection of a bacterium as shown in Figure 1. c-di-GMP also inhibits<br />

basal and growth factor-stimulated human colon cancer cell proliferation. In addition,<br />

investigations of c-dGpGp revealed that this artificial compound has different biological activities<br />

from those of c-di-GMP. Thus, both c-di-GMP and c-dGpGp inhibit biofilm formation of S.<br />

aureus and V. parahaemolyticus, but the strength of their inhibitory effects is not the same and<br />

c-dGpGp has a stronger effect than c-di-GMP in either bacterium. In conclusion, our findings<br />

described here suggest that c-di-GMP and its analogs have high potential as antibacterial and<br />

immunotherapeutic agents.<br />

265


IL-23<br />

SYNTHESIS OF DINUCLEOSIDE PHOSPHATES FROM c-di-GMP TO AZTppppA<br />

Zhaoying Zhang, Qianwei Han, Jianwei Zhao, Barbara L. Gaffney, and Roger A. Jones*<br />

Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey<br />

08854<br />

Bis-(3'-5')-cyclic guanosine monophosphate (c-di-GMP) is a ubiquitous bacterial signaling<br />

molecule responsible for regulating biofilm formation, cell differentiation, and a variety of<br />

pathogenic processes. We have recently reported a new method for its efficient chemical synthesis<br />

involving an initial phosphoramidite coupling and a subsequent H-phosphonate cyclization. The use<br />

of P(III) chemistry in both steps permits fast, high yield reactions. We have also synthesized and<br />

separated diastereomers of the phosphorothioates of c-di-GMP. Further, using UV, CD, and NMR,<br />

we have demonstrated that c-di-GMP exists as a mixture of five different but related structures in an<br />

equilibrium that is sensitive both to its concentration and to the metal present.<br />

Dinucleoside polyphosphates (5'-5'''-NpnN) have been proposed as signaling and regulatory<br />

molecules for many different biological functions in most forms of life. We have reported a<br />

one-flask, high-yield synthesis of Ap4A, Ap4G, Gp4G, and Ap5A by reaction of a nucleoside<br />

trimetaphosphate with a nucleoside mono- or diphosphate in DMF with ZnCl2. We have also<br />

extended this method to the preparation of versions of Ap4A with a thioate, selenoate, or boranoate<br />

introduced into the trimetaphosphate. We have recently modified our approach so as to introduce a<br />

thioate at both ends and have prepared a variety of modified versions of AZTp4A as potential<br />

non-hydrolyzable inhibitors of the AZT excision reaction from HIV-1 reverse transcriptase.<br />

266


IL-24<br />

THE EFFECTS OF REVISIBLE PHOSPHORYLATION ON PEPTIDE AND PROTEIN<br />

LOCAL STRUCTURE<br />

Yan-Mei Li, Yu-Fen Zhao<br />

Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of<br />

Chemistry, Tsinghua University, Beijing 100084<br />

The regulation of biochemical activity by protein post-translational modifications is a pervasive<br />

cellular control mechanism. Protein phosphorylation is a key posttranslational modification<br />

mechanism controlling the conformation and activity of many proteins. Through the use of<br />

phosphorylation cycles and cascades, the cell is able to regulate a diverse set of processes, including<br />

cellular movement, reproduction and metabolism. It is the simplicity, reversibility and flexibility of<br />

phosphorylation that explains why it has been adopted as the most general control mechanism of the<br />

cell. The use of the phosphorylation/dephosphorylation of a protein as a control mechanism has<br />

many advantages: rapid, taking as little as a few seconds, no require new proteins to be made or<br />

degraded and easily reversible.<br />

With regard to its regulatory mechanism, it is of fundamental importance to study the role and<br />

function in protein networks by phosphorylation. Increasing evidence has implicated an essential<br />

role of phosphorylation by activating α-COOH to form amide bond in peptide synthesis, increasing<br />

the cis content of the peptidyl-propyl amide bond, causing local structure more ordered, regulating<br />

intrisically disorder domain, and effecting the protein distribution in cell. Phosphate acts as the<br />

molecular switch to modulate protein networks.<br />

Reference<br />

[1] Chen YX, Du JT, Zhou LX, Li YM*, et al. Alternative O-GlcNAcylation/ O-Phosphorylation of Ser16 Induce<br />

Different Conformational Disturbances to the NTesrminus of Murine Estrogen Receptor β. Chem. Biol. 2006, 13:<br />

937-944.<br />

[2] Du JT, Li YM*, Wei W, et al. Low Barrier Hydrogen Bond Between Phosphate and Amide Group in Phosphopeptide.<br />

J. Am. Chem. Soc. 2005, 127: 16350-16351.<br />

[3] Du JT, Li YM*, Ma QF, et al. Synthesis and Conformational Properties of Phosphopeptides Related to the Human<br />

Tau Protein. Regul. Pept. 2005, 130: 48-56.<br />

[4] Schlummer S, Vetter R, Kuder N, Chen YX, Li YM, et al. Influence of Serine O-Glycosylation or O-Phoshorylation<br />

Close to the vJun Nuclear Localisation Sequence on Nuclear Import. ChemBioChem 2006, 7: 88-97.<br />

[5] Chen ZZ, Tan B, Li YM*, et al. Activity Difference between α-COOH and β-COOH in N-Phosphoryl Aspartic Acids.<br />

J. Org. Chem. 2003, 68: 4052-4058.<br />

[6] Chen ZZ, Li YM*, Wang HY, et al. Theoretical Study on the Rearrangement of β-OH and γ-OH in ESI Mass<br />

Spectrometry by N-phosphorylation. J. Phys. Chem. A 2004, 108: 7686-7690.<br />

267


IL-25<br />

ALL PHOSPHATES ARE NOT BORN CHEMICALLY EQUAL IN RNA<br />

Jyoti Chattopadhyaya<br />

Department of Bioorganic Chemistry, Box 581, Biomedical Center,Uppsala University, S-751 23 Uppsala, Sweden<br />

jyoti@boc.uu.se<br />

We here show that the electronic properties and the chemical reactivities of the internucleotidic<br />

phosphates in the heptameric ssRNAs are dissimilar in a sequence-specific manner because of their<br />

nonidentical microenvironments, in contrast with the corresponding isosequential ssDNAs. This has<br />

been evidenced by monitoring the δH8G shifts upon pH-dependent ionization [pKa1] of the central<br />

9-guaninyl(G) to the 9-guanylate ion (G−), and its electrostatic effect on each of the internucleotidic<br />

phosphate anions, as measured from the resultant δ31P shifts [pKa2] in the isosequential heptameric<br />

ssRNAs vis-àvis ssDNAs: [d/r(5'-Cp1Ap2Q1p3Gp4Q2p5Ap6C-3'): Q1 = Q2 = A (5a/5b) or C<br />

(8a/8b), Q1 = A, Q2 = C(6a/6b), Q1 = C, Q2 = A (7a/7b)]. These oligos with single ionizable G in<br />

the centre are chosen because of the fact that the pseudoaromatic character of G can be easily<br />

modulated in a pH-dependent manner by its transformation to G− (the 2'-OH to 2-O− ionization<br />

effect is not detectable below pH 11.6 as evident from the N1-Me-G analog), thereby<br />

modulating/titrating the nature of the electrostatic interactions of G to G− with the phosphates,<br />

which therefore constitute simple models to interrogate how the variable pseudoaromatic characters<br />

of nucleobases under different sequence context [Chattopadhyaya et al J. Am.Chem. Soc, 126,<br />

8674-8681 (2004)] can actually influence the reactivity of the internucleotide phosphates as a result<br />

of modulation of sequence-context specific electrostatic interactions.<br />

References<br />

[1] J. Barman, S. Acharya, S. Chatterjee, . Engstrom and J. Chattopadhyaya, Org. Biomol. Chem, 4, 928 - 941 (2006).<br />

[2] S. Chatterjee, W. Pathmasiri, D. Honcharenko, O. P. Varghese, M. Maiti & J. Chattopadhyaya, Org.Biomol. Chem., 4,<br />

1675-1686 (2006)<br />

[3] Oommen P. Varghese, Jharna Barman, Wimal Pathmasiri, Oleksandr Plashkevych, Dmytro Honcharenko, and Jyoti<br />

Chattopadhyaya. J. Am. Chem. Soc. 128(47) pp 15173 – 15187 (2006)<br />

268


IL-26<br />

DESIGN, SYNTHESIS AND BIOLOGICAL ACTIVITY OF Α-AMINO-SUBSTITUTED<br />

THIOPHOSPHATE-PHOSPHONATES AND NOVEL NAPHTHOQUINONE FUSED<br />

PHOSPHORUS HETEROCYCLES<br />

Zhanwei Cui Zhiwei Miao * Jianfeng Zhang Ruyu Chen<br />

State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P.R.China<br />

Email: miaozhiwei@syn.nankai.edu.cn<br />

The phosphoryl group is of fundamental significance in many of the most important molecules<br />

that control molecular replication, cell biochemistry and metabolic processes in all living species. 1-4<br />

On the other hand, α-amino phosphonates constitute an important class of biologically active<br />

compounds, and their synthesis has been a focus of considerable attention in synthetic organic<br />

chemistry as well as in medicinal chemistry.<br />

Nitrogen mustards (NMs) are useful chemotherapeutic agents in the treatment of lymphoma,<br />

leukemia, multiple myeloma and ovarian carcinoma. 5 The antitumor activity of NMs has been<br />

attributed to their ability to cross-link the twin strands of DNA. Phosphoramide mustard is also an<br />

alklating agent that cross-links interstrand DNA, such as cyclophosphamide (CP),ifosfamide (IFA)<br />

and trofosfamide. 6-9 Cyclophosphamide is a widely used anticancer alklating agent that requires<br />

activation in vivo. It can liberate cytotoxic phosphoramide mustard and acrolein by β-elimination.<br />

However, acrolein, a byproduct of β-elimination, can cause hemorrhagic cystitis, a side effect<br />

observed during CP therapy. To overcome the shortcoming of CP, many different kinds of<br />

compounds containing phosphamide mustard have been designed and synthesized. 10-12 On that basis,<br />

we designed and synthesized the title compound to find novel anticancer prodrug.<br />

We report here a facile synthetic method for the preparation of Diphenyl α-(O-phenyl<br />

bis(2-chloroethyl)amidophosphorylamino)phosphonates (4). It consists of the reaction of O-phenyl<br />

bis(2-chloroethyl)amidophosphoroamidoate (1) with a substituted benzaldehyde or ketones (2) and<br />

triphenyl phosphite (3) in the presence of acetyl chloride as catalysis. 13 The present method affords<br />

higher yields in the condensation reaction and high purify. (Scheme 1)<br />

Cl<br />

Cl<br />

N<br />

O<br />

P<br />

O<br />

1<br />

NH 2 +<br />

R 1<br />

O<br />

R 2<br />

+ (PhO) 3P<br />

2 3<br />

Scheme 1<br />

269<br />

O<br />

Cl<br />

r.t., 6-8h<br />

R1 H<br />

N C<br />

4 R 1 R 2 Yield (%) 4 R 1 R 2 Yield (%)<br />

4a H C 6H 5 92 4f H 4-ClC 6H 4 89<br />

4b H 4-MeC6H4 90 4g H 4-BrC6H4 84<br />

4c H 4-MeOC6H4 90 4h (CH2) 4 75<br />

4d H 4-O2NC6H4 86 4i (CH2) 5 73<br />

4e H 3,4-OCH2OC6H3 89<br />

Cl<br />

Cl<br />

N<br />

O<br />

P<br />

O<br />

4<br />

R 2<br />

O<br />

P<br />

OC 6H 5<br />

OC 6H 5


Reference<br />

1. Zhou, J.; Chen, R. Y. Phosphorus, Sulfur, Silicon 1996, 118, 247.<br />

2. Bergman, J.; Van der Plas, H. C.; Simonyi, M. Heterocycles in Bioorganic Chemistry; RSC: Cambridge, 1991.<br />

3. Meier, C. Angew. Chem., Int. Ed. Engl., 1996, 35, 70.<br />

4. Yuan, C.; Qi, Y. Synthesis 1986, 821.<br />

5. Balcome, S.; Park, S.; Danae R.; Dorr, R.; Hafner, L.; Phillips, L.; Tretyakova, N. Chem. Res. Toxicol. 2004, 17,<br />

950-962.<br />

6. Sladek, N. E. Pharmacol. Ther. 1988, 37, 301-305.<br />

7. Friedman, O. M.; Myles, A.; Colvin, M. Adv. Cancer Chemother. 1979, 1, 143-204.<br />

8. Ludeman, S. M. Curr. Pharm. Des. 1999, 5, 627-643.<br />

9. Colvin, O. M. Curr. Pharm. Des. 1999, 5, 555-560.<br />

10. Borch, R. F.; Liu, J. W.; Schmidt, J. P.; Marakovits, J. T.; Joswig, C.; Gipp, J. J.; Mulcahy, R. T. J. Med. Chem.<br />

2000, 43, 2258-2265.<br />

11. Hu, L. Q.; Yu, C. Z.; Jiang, Y. Y.; Han, J. Y.; Li, Z. R.; Browne, P.; Race, P. R.; Knox, R, J.; Searle, P. F.; Hyde,<br />

E. I. J. Med. Chem. 2003, 46, 4818-4821.<br />

12. Jain, M.; Kwon, C. H. J. Med. Chem. 2003, 46, 5428-5436.<br />

13. Yuan, C.; Qi, Y. Synthesis .1988, 472.<br />

270


IL-27<br />

RECENT ADVANCES IN CARBAMOYLPHOSPHONATE BASED MATRIX<br />

METALLOPROTEINASE (MMP) INHIBITORS. A CLASS OF NON-TOXIC IN-VIVO<br />

ACTIVE DRUG CANDIDATES<br />

Eli Breuer<br />

Department of Medicinal Chemistry, School of Pharmacy, The Hebrew University of Jerusalem,<br />

Jerusalem, 91120 Israel<br />

Matrix metalloproteinases (MMPs) are a family of about 26 zinc-dependent endopeptidases,<br />

which collectively have the capacity to degrade all the major components of the extracellular<br />

matrix. [1] Although the MMPs play a crucial role in physiological tissue remodeling, growth and<br />

repair, their over-expression has been linked with severe chronic pathological conditions, including<br />

cancer, arthritis, several cardiovascular disorders and others. The efficient inhibit-ion of MMPs is,<br />

therefore, an important scientific and therapeutic target, which has attracted considerable attention<br />

within academia and industry for the last two decades. Yet, in spite of intensive worldwide research,<br />

which has yielded a multitude of highly in vitro potent inhibitors, no clinically useful inhibitor has<br />

been achieved. The main reasons for this failure probably have to do with unacceptable side effects<br />

resulting presumably from lack of selectivity of two kinds: 1) lack of differentiation between the<br />

various MMP subtypes; and 2) lack of selectivity toward various metal cations present in the<br />

organism. [2]<br />

As the Zn 2+ ion at the active sites of these enzymes is crucial for enzymatic activity, all attempts<br />

to develop inhibitors have been based on so-called zinc binding groups (ZBG). It has also been<br />

pointed out that the use of highly potent ZBGs might lead to a limitation in finding specific<br />

metalloproteinase inhibitors. The presence of a similar metal chelation topology in independently<br />

identified and structurally unrelated lead compounds indicates that Zn 2+ binding follows a rather<br />

universal recognition motif, which dominates the binding characteristics. Consequently, many if not<br />

most potent active site directed Zn 2+ protease inhibitors exploit such a universal binding motif, and<br />

are likely to exhibit a low specificity profile, at least prior to optimization, which is usually<br />

attempted through substituent group modification. Accordingly, for the design of more selective<br />

MMPIs, weaker ZBGs should be preferred.<br />

We have recently introduced the carbamoylphosphonic group as a novel ZBG. [3] We have<br />

synthesized carbamoylphosphonates of various structures, [4] and evaluated them in numerous in<br />

vitro and in vivo biological models, related to cancer metastases, angiogenesis, cardiovascular<br />

disease, wound healing and others. Thus, we have discovered novel, in vivo potent and nontoxic<br />

inhibitors.<br />

This lecture will describe the recent advances in our work on carbamoylphosphonate based MMP<br />

inhibitors, including the mode of MMP inhibition, structure-activity relationships, in vivo results<br />

obtained in disease models, and the unique pharmacokinetic characteristics of this class of polar<br />

compounds.<br />

Reference<br />

[1] J. W. Skiles, N. C. Gonnella, A. Y. Jeng. Current Med. Chem. 2004, 11, 2911.<br />

[2) E. Breuer, J. Frant and R. Reich, Expert Opin. Ther. Patents, 2005, 15, 253.<br />

[3] E. Farkas, Y. Katz, S. Bhusare, R. Reich, G.-V. Röschenthaler, M. Königsmann, and E. Breuer, J. Biol. Inorg. Chem.<br />

2004, 9, 307.<br />

[4) E. Breuer, C. J. Salomon, Y. Katz, W. Chen, S. Lu, G.-V. Röschenthaler, R. Hadar, and R. Reich, J. Med. Chem.<br />

2004, 47, 2826.<br />

271


IL-48<br />

NOVEL FUNCTIONALITY IN ORGANOPHOSPHORUS CHEMISTRY<br />

Koop Lammertsma<br />

Department of Chemistry, Faculty of Sciences,Vrije University, Amsterdam, the Netherlands<br />

Phosphinidenes R-P are remarkably reactive. For long they eluded spectroscopic detection other<br />

than by EPR. Only recently were we able to obtain IR and UV spectra of the mesityl derivative<br />

under matrix isolation conditions. Those complexed to transition metal groups are spectroscopically<br />

equally elusive when they are of the Fischer-type, but their very rich chemistry sharply contrasts<br />

that of triplet Mes-P. In this presentation we elaborate on synthetic routes by which the electrophilic<br />

and nucleophilic R-P=MLn can be generated and used. This reactivity of these species will be<br />

addressed. Analogies with hydrocarbon chemistry will also be highlighted in the rearrangement of<br />

selected products.<br />

Me<br />

Me<br />

Me<br />

P<br />

Ru<br />

Highly strained, yet stable P-containing ring structures, such as bicyclobutanes and<br />

(poly)spiranes, can be synthesized with the aid of electrophilic R-P=MLn. Selected novel examples<br />

will be presented.<br />

N<br />

i-Pr<br />

P<br />

Fe(CO) 4<br />

O<br />

P<br />

N'<br />

N<br />

N<br />

N N<br />

Ph<br />

Rh<br />

N<br />

Cl Cl Cl<br />

272<br />

P<br />

Mes*<br />

N Ph<br />

N<br />

R 2<br />

N C<br />

Cp*<br />

Ir<br />

P<br />

C<br />

P<br />

R<br />

R 3<br />

ML n<br />

N R 1


IL-64<br />

STUDYING THE PHOSPHORYLATION OF FLAVONOIDS<br />

E. E. Nifantyev 1 , M. P. Koroteev 1 , G. Z. Kaziev 1 , T. Wang 1 , and L. H. Cao* ,2<br />

1 Department of Chemistry, Moscow State Pedagogical University, 119021, Moscow Russia<br />

2 College of Chemistry and Chemical Engineering, Xinjiang University, 830046, Urumqi China P.R.<br />

Phosphorylation of dihydroquercetin (1) and other flavonoids with tervalent phosphorus reagents<br />

was studied. It was found that flavonoid 1 can be directionally phosphorylated with phosphorous<br />

acid amides under mild conditions:<br />

The resulting product 2 was easily reacted with sulfur to form thiophosphate 3, which has<br />

antitumoral activity. Phosphite 5 was obtained when tetramethyldihydroquercetin (4) was treated<br />

with P(NEt2)3:<br />

Under slight heating, 5 forms phostone 6, whose structure was supported by X-ray diffraction<br />

analysis.<br />

273


O-56<br />

CATIONIC LIPIDS BASED ON PHOSPHONATE & PHOSPHORAMIDATE CHEMISTRY:<br />

SYNTHESIS AND APPLICATION TO GENE THERAPY<br />

Paul-Alain Jaffrès a , Mathieu Mével a , Jean-Jacques Yaouanc a , Jean-Claude Clément a ,<br />

Dominique Cartier a , Laure Burel, Philippe Giamarchi, Tristan Montier b , Pascal Delépine b ,<br />

Pierre Lehn b , Claude Férec b , Chantal Pichon c , Patrick Midoux c .<br />

a- CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques, Université de Bretagne Occidentale, 6 avenue Le<br />

Gorgeu, 29238 Brest, (France) ; b-Unité INSERM 613, Institut de Synergie des Sciences et de la Santé, Université de<br />

Bretagne Occidentale, avenue Foch, 29609 Brest cedex 2 (France); c-Centre de Biophysique Moléculaire, CNRS UPR<br />

4301, rue Charles Sadron, 45071 Orléans (France)<br />

Vectorisation of DNA into cells, which is required for gene therapy or cancer therapy, can be<br />

achieved according to two distinct strategies. One is based on the use of viral vectors while the<br />

second concerns the use of synthetic vectors. Synthetic vectors are very promising due to both their<br />

ability to carry large plasmid and the absence of immunogenic side effect. The chemical structure of<br />

the synthetic vectors can be classified into two categories: cationic polymers (e.g.PEI) and cationic<br />

lipids (schematized below). Despite the recent progress proving that cationic lipids or cationic<br />

polymers can be efficient for gene delivery, further improvement in term of efficiency of<br />

transfection should be done for clinical use. In our group, cationic lipids, possessing a molecular<br />

structure inspired from phospholipids present into membranes, have been synthesized over the last<br />

10 years. The chemical structures of these vectors are characterized by the presence of a<br />

phosphonate (A) or phosphoramidate (B) functional group on which the lipid chains are linked.<br />

Several chemical variations on the lipid chain, the linker or the cationic head group have been<br />

investigated. These chemical modifications and optimizations lead to synthetic vectors [1] efficient as<br />

gene carrier for in vitro [2] and in vivo [3] essays.<br />

Reference<br />

[1] J.C. Clément, P. Delépine, H des Abbayes, C. Férec, K. Le Ny, T. Montier, J.J. Yaouanc, French patent N°0214044<br />

(2002). Extension Int. (PCT) (2003)<br />

[2] (a) Guenin, E.; Hervé, A.C.; Floch, V.; Loisel, S.; Yaouanc, J.J.; Clément, J.C.; Férec, C; des Abbayes, H.Angew.<br />

Chem. Int. Ed. Engl. 2000, 39, 629-631. (b) T. Montier, P. Delépine, K. Le Ny, Y. Fichou, M. Le Bris, E.Hardy, E.<br />

Picquet, J.C. Clément, J.J. Yaouanc, C. Férec, Biochimica & Biophysica Acta 2004, 1665, 118-133<br />

[3] (a) Gable-Guillaume, Floch, V.; et. al., Hum. Gene Ther. 1998, 9, 2309-2319. (b) P. Delépine, C.Guillaume, et. al.,<br />

Gene Medecine 2003, 5, 600-8 ; (c) E. Picquet, K. Le Ny, et. al., Bioconjugate Chem., 2005, 16, 1051-53<br />

274


O-57<br />

ENANTIOMERIC SEPARATION OF A NOVEL Α-ANMINOPHOSPHONATES<br />

CONTAINING BENZOTHIAZOL MOIETY BY LIQUID CHROMATOGRAPHY USING<br />

AMYLOSE STATIONARY PHASE<br />

Ping Lu, Baoan Song, Deyu Hu, Song Yang, Linhong Jin, Wei Xue, Yuping Zhang<br />

Center for Research and Development of Fine Chemicals, Key Laboratory of Green Pesticide and Agriculture<br />

Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, P.R. China.<br />

α-Aminophosphonate derivatives have attracted much attention in medicinal and pesticide<br />

chemistry due to their bioactivities. Some recemates of N-(substituent– benzothiazole-2-yl) -1-(substient-fluorophenyl)-O,<br />

O-dialkyl-α-aminophosphonate were found to possess good antiviral activity. To the best of our<br />

knowledge, the enantioseparation methods of recemates and the bioactivity results of enantiomers<br />

of this series of α-aminophosphonates are not available in the literature. The present report<br />

describes a chiral HPLC method for the entiomeric separation of these α-aminophosphonate<br />

derivatives using both coated and immobilized amylase-based CSP (Chiralpak IA and Chiralpak<br />

AD-H). The various chromatographic parameters such as retention factor (k’), separation factor (α),<br />

and resolution (Rs) of the solutes are investigated. Reasonably good baseline separation for these<br />

compounds was achieved using Chiralpak IA column under normal phase with n-hexane/ethanol<br />

(95:5, v/v). The validated method yields good results for precision, linearity and accuracy. In order<br />

to study the chiroptical properties and bioactivity of single stereoisomer, mg-scale separations were<br />

performed on semipreparative size Chiralpak IA column in combination with ethanol-based eluents.<br />

Every enantiomer was isolated with purity of > 98.0 e.e. and >96.0% recovery. The proposed<br />

method was found to be suitable and accurate for rapid determination of enantiomeric purity of this<br />

series of α-aminophosphonate derivatives.<br />

(1) (2)<br />

(3)<br />

Fig. Chromatograms of N-(4-methyl-benzothiazole-2-yl)-1-(2-fluorophenyl)-O,O-diethyl- α-aminophosphonate<br />

racemate (1), R-isomer (2) and S-isomer (3) isolated at 270nm on the Chiralpak IA using n-hexane and ethanol (95:5,<br />

v/v), 1.0mL/min.<br />

275


O-58<br />

BEAD-BASED APPROACHES TO DEVELOP THIOAPTAMERS FOR<br />

DIAGNOSTICS AND THERAPEUTICS<br />

Xianbin Yang 1 , Duane Beasley 1 , Bruce A. Luxon 2 , Johnnie Engelhardt 1 , Mark Shumbera 1 , David G. Gorenstein 2 .<br />

1 AM Biotechnologies LLC, 6023 Ave. S. #228, Galveston, Texas 77551, USA; 2 Sealy Center for Structural Biology,<br />

Department of Biochemistry and Molecular Biology, The University of Texas Medical Branch at Galveston, Texas<br />

77555, USA.<br />

Aptamers [1,2] with normal phosphate ester backbones obtained from the in vitro selection process<br />

were discovered in the early 1990s and have proven very useful as therapeutic and diagnostic agents.<br />

In December 2004, an aptamer for vascular endothelial growth factor, Macugen, made headlines as<br />

the first of its class to be approved by the US Food and Drug Administration. However, the aptamer<br />

selection method is limited to substrates and templates accepted by the polymerases required for<br />

reamplification by PCR of the selected libraries. In addition, selection is a time consuming process<br />

which involves multiple rounds of alternating selection and amplification steps in order to<br />

successively enrich aptamer sequences that show the desired properties. Thioaptamers [3] , which are<br />

thiophosphate ester backbone modified nucleic acid aptamers, offer advantages over normal<br />

aptamers due to their enhanced affinity and higher stability stemming from the properties of the<br />

sulfur backbone modifications. Over the past several years, we have demonstrated proof-of<br />

principle that a novel bead-based approach [4] can be employed to develop aptamers, thiopaptamer<br />

and other modified aptamers as well. In this presentation, we will outline our integrated novel<br />

bead-based selection procedures including the automation of the split-pool synthesis of a one-bead<br />

one-thioaptamer library, high-throughput flow cytometric sorting and a PCR-based sequencing.<br />

Additionally, we will also discuss several promising thioaptamers which have been shown in<br />

preliminary animal therapeutic dosing to increase survival in animal models of infection with West<br />

Nile virus [5] . Moreover, we will present a thioaptamer proteomics chip. (Note: Drs Gorenstein and<br />

Luxon have a financial interest in AM Biotechnologies).<br />

Reference<br />

[1] C. Tuerk, and L. Gold, Systematic evolution of ligands by exponential enrichment: RNA ligands to bacteriophage<br />

T4 DNA polymerase. Science 249 (1990) 505-10.<br />

[2] A.D. Ellington, and J.W. Szostak, In vitro selection of RNA molecules that bind specific ligands. Nature 346 (1990)<br />

818-22.<br />

[3] X. Yang, and D.G. Gorenstein, Progress in thioaptamer development. Curr Drug Targets 5 (2004) 705-15.<br />

[4] X. Yang, S.E. Bassett, X. Li, B.A. Luxon, N.K. Herzog, R.E. Shope, J. Aronson, T.W. Prow, J.F. Leary, R. Kirby,<br />

A.D. Ellington, and D.G. Gorenstein, Construction and selection of bead-bound combinatorial oligonucleoside<br />

phosphorothioate and phosphorodithioate aptamer libraries designed for rapid PCR-based sequencing. Nucleic Acids<br />

Res 30 (2002) e132.<br />

[5] X. Yang, H. Wang, D. Beasley, D. Volk, X. Zhao, B. Luxon, L. Lomas, N. Herzog, J. Aronson, A. Barrett, J. Leary,<br />

and D. Gorenstein, Selection of Thioaptamers for Diagnostics and Therapeutics. Annals of the New York Academy of<br />

Sciences. 1082 (2006) 116-119.<br />

276


O-59<br />

DESIGN AND CONSTRUCTION OF DIAGNOSTIC CHIPS FOR CANCERS<br />

Anna Czernicka and Paweł Kafarski<br />

Department of Bioorganic Chemistry Faculty of Chemistry,Wrocław University of Technology,Wybrzeże.<br />

Wyspiańskiego 27, 50-370 WROCŁAW; Poland<br />

In the past few years, miniaturized and parallel assay systems, especially microarraybased<br />

analyses have shown its great potential in basic research, drug discovery and diagnostics. The<br />

development of these tools was possible due to progress in the area referred as chip technology.<br />

The aim of the presented studies it is to construct prototype organophosphorous diagnostic chips<br />

composed of arrays of peptide derivatives covalently bound to the glass and/or filter paper surface.<br />

These peptides might serve as fluorogenic substrates or inhibitors of marker proteins being<br />

overproduced during cancer development. Thus, by manipulating the chemical structure of the<br />

aminophosphonate and the amino acid composition of the peptide it is possible to design and<br />

synthesize libraries reacting differently with healthy and tumorous cell extracts. The first step of<br />

implementation this project is synthesis of diaryl or dialkyl Z-aminophosphonates, witch could be<br />

applied for qualitative and quantitative determination of proteolytic activity of certain tumor tissues<br />

in comparison with healthy ones. The composition of these libraries was strongly dependent on<br />

choice and properties of fluorogenic groups used as features of presumable inhibitors and substrates<br />

of proteases. This is because immobilization of these probes is far easier than production of<br />

sensitive fluorescence change. The fluorogenic groups were synthesized by application of several<br />

methods. Among them unusual application of Suzuki coupling in organophosphorus chemistry was<br />

proposed.<br />

Also the preliminary evaluation of efficiency of these compounds using thyroid cancer cell<br />

extracts will be shown<br />

277


O-62<br />

FACTORS THAT MAY PREDICT CLINICAL POTENCIES OF<br />

NITROGEN-CONTAINING BISPHOSPHONATES; NOVEL METHODS DISSOCIATE<br />

ENZYME- AND HYDROXYAPATITE-BINDING AFFINITIES<br />

Z.Xia 1 ,J.Dunford 1 ,M.A.Lawson 1 ,J.T.Triffitt 1 ,B.L.Barnett 2 ,C.Roze 3 ,B.Kashemirov 3 ,C.E.McKenna 3 , F.H.Ebetino 2 and<br />

R.G.G. Russell<br />

1 The Oxford University Institute of Musculoskeletal Sciences, The Botnar Research Centre, Nuffield Orthopaedic<br />

Centre, Oxford,OX3 7LD, UK; 2 New Drug Development, Procter and Gamble Pharm, Cincinnati OH, USA, 3 Chemistry<br />

Department, University of Southern California, Los Angeles, CA<br />

Bisphosphonates (BPs) have pharmacological potencies that are dependent on both the binding<br />

affinities for bone mineral and inhibitory effects on the cellular activities of the major<br />

bone-resorbing cells, the osteoclasts. The latter cellular effects are mediated in the case of<br />

nitrogen-BPs by selective targeting of the enzyme Farnesyl Diphosphate Synthase (FDPS). The<br />

extent to which each factor determines the functional properties of individual BPs can be better<br />

defined by assays for FDPS activity and mineral binding. This study has employed a recently<br />

developed mineral binding assay that is highly reproducible and based on ceramic hydroxyapatite<br />

(HAP) column chromatography. Inhibitory potencies of individual BPs on FDPS were measured by<br />

kinetic investigations. These studies indicate that the nitrogen containing bisphosphonates (N-BPs)<br />

inhibit the enzyme by initially competing with the substrate geranyl pyrophosphate and<br />

subsequently bind in a slow tight manner. From the use of a variety of N-BPs, it is shown that that<br />

the rank order for inhibitory potencies on FDPS is independent of the respective mineral binding<br />

affinities to HAP (Table 1). Major determinants of mineral binding are confirmed to be the P-C-P<br />

group, an OH on the carbon, and the structure and orientation of a second nitrogen containing<br />

substituent on the carbon. For the inhibition of FDPS the PCP groupis also essential (via Mg 2+<br />

binding), together with specific orientation of the N in the R2 group relative to the enzyme binding<br />

pocket. These results are aided by molecular modelling to illustrate how different 3-D<br />

configurations of the nitrogen containing substituents in the different BPs, in relation to the overall<br />

BP structures, can account for the observed FDPS inhibition and HAP-binding characteristics.<br />

In conclusion, the chemical structures that determine independently the FDPS inhibition and<br />

mineral binding activities of N-BPs are distinctive and contribute separately to the overall observed<br />

clinical potencies of N-BPs in vivo.<br />

N-BPs Retention time (min, mean±SE) Ki app (nM)<br />

Risedronate-R1 Fluorine 5.93±0.11 11.5<br />

Risedronate-R1Bromine 5.83±0.17 220<br />

Risedronate-R1 Chlorine 5.93±0.07 47.7<br />

NE97220 ( a 3-Me 2-pyridyl aminomethane BP) 6.53±0.15 6.3<br />

NE58022 (Phenyl analogue of Ris) 7.77±0.15 293<br />

Homorisedronate (NE58051) 9.67±0.09 218<br />

Risedronate 9.97±0.09 2.0<br />

Zoledronate 12.53±0.06 0.4<br />

278


O-63<br />

NOVEL ORGANOPHOSPHORUS INHIBITORS OF GLUTAMINE SYNTHETASE<br />

Łukasz Berlicki 1 , Agnieszka Grabowiecka 1 , Giuseppe Forlani 2 and Paweł Kafarski 1<br />

1 Department of Bioorganic Chemistry Wrocław University of Technology,Wybrzeże Wyspiańskiego 27, 50-370<br />

Wrocław; POLAND 2 Department of Biology, University of Ferrara,Via L. Borsari 46, 44100 Ferrara, ITALY<br />

Glutamine is one of the most important intermediates in nitrogen metabolism in cell.Glutamine<br />

amide nitrogen atom is utilized as a donor for biosynthesis of several crucial metabolites — amino<br />

acids, nucleic acids and aminosugars [1] . Thus, the enzyme which catalyses the synthesis of<br />

glutamine from glutamate and ammonium ion — glutamine synthetase (E.C. 6.3.1.2, GS) is of high<br />

importance for nitrogen metabolism. Inhibitors of glutamine synthetase exhibit interesting<br />

applications both in medicine and agriculture. It was proven that they could be efficient<br />

antituberculosis drugs by inhibiting the growth of the pathogen — Mycobacterium tuberculosis [2] .<br />

Preliminary data suggest also that inhibitors of GS could be useful in cancer therapy [3] . On the other<br />

side, one of the most potent inhibitors of GS — phosphinothricin (1) is commercially available total<br />

herbicide. The inhibition of GS in plant causes accumulation of toxic ammonia [4] . Thus discovery<br />

of novel, potent and selective GS inhibitors is of high interest.<br />

Rational discovery of novel inhibitors should be based on the knowledge on the structure of<br />

active site, mechanism of the reaction and interactions between substrates, products and inhibitors<br />

with protein. Thus, we have docked known inhibitors of GS to its active site and analyzed important<br />

structural and electronic features of these compounds [5] .Then, using LUDI program, several new<br />

inhibitors were designed. After evaluation of their synthetic accessibility, we have chosen five<br />

structures and synthesized them in enantiomerically pure form. Kinetic measurements showed that<br />

obtained inhibitors rank between most active GS inhibitors (Ki = 0.59 μM was found for compound<br />

(2)) [6] . Analysis of these data allowed to design the next generation of GS inhibitors with additional<br />

hydroxyl group in gamma position (structure (3) is the representative example). Selected<br />

compounds were synthesized and evaluated for their biological activity.<br />

References<br />

[1]. Purich, D.L. Adv. Enzymol. 1998, 72, 9.<br />

[2]. Harth, G.; Horwitz, M.A. Infect. Immun. 2003, 71, 456.<br />

[3]. Rotoli, B.M.; Uggeri, J.; Dall'Asta, V.; Visigalli, R.; Barilli, A.; Gatti, R.; Orlandini, G.; Gazzola, G.C.; Bussolati, O.<br />

Cell Physiol. Biochem. 2005, 15, 281.<br />

[4]. Wild, A.; Sauer, H.; Rühle, W. Z. Naturforsch, 1987, 42, 263.<br />

[5]. Berlicki, Ł.; Kafarski, P. Bioorg. Med. Chem. 2006, 14, 4578.<br />

[6]. Berlicki, Ł.; Obojska, A.; Forlani, G.; Kafarski, P. J. Med. Chem. 2005, 48, 6340.<br />

[7]. Forlani, G.; Obojska, A.; Berlicki, Ł.; Kafarski, P. J. Agric. Food Chem. 2006, 54, 796.<br />

279


O-67<br />

INVESTIGATIONS INTO THE OXIDATIVE STABILITY OF HYDROXYMETHYL- AND<br />

BIS(HYDROXYMETHYL)PHOSPHINES<br />

D. V. Griffiths and H. J. Groombridge.<br />

School of Biological and Chemical Sciences, Queen Mary, University of London, London, E1 4NS, UK.<br />

It has been reported that chelate systems containing the bis(hydroxymethyl)phosphine unit,<br />

(HOCH2)2PR, display an unusually high level of oxidative stability. [1] As part of an ongoing<br />

programme to develop novel hydrophilic ligands for medical imaging, we were interested to<br />

ascertain whether this oxidative stability was an inherent feature of the<br />

bis(hydroxymethyl)phosphine groups or simply a function of the conformations adopted by these<br />

specific chelate systems. We also wished to establish whether the hydroxymethylphosphine unit,<br />

HOCH2PRR’, would confer a similar level of oxidative stability to that reported for the<br />

bis(hydroxymethyl) system.<br />

We have investigated the preparation of benzylethyl(hydroxymethyl)phosphine 1 and<br />

benzylbis(hydroxymethyl)phosphine 2, as model systems, in order to assess their oxidative stability<br />

compared with the trialkyl phosphine, benzyldiethylphosphine 3. These studies indicated that<br />

neither of the hydroxymethylphosphine centres in 1 and 2 displayed a significantly enhanced level<br />

of oxidative stability. The unusually high stability of hydroxymethylphosphine chelates previously<br />

reported would therefore appear to arise from the overall structure of these systems rather than the<br />

intrinsic stability of the hydroxymethylphosphine centres. In addition, the synthesis of the<br />

hydroxymethylphosphines was complicated by the formation of hemiacetal derivatives e.g. 4 and 5<br />

as well as other by-products e.g. 6 and 7. This is likely to limit the usefulness of the<br />

hydroxymethylphosphines in commercial radiopharmaceutical applications.<br />

P<br />

O OH P<br />

4<br />

OH<br />

5<br />

P +<br />

OH<br />

OH<br />

OH<br />

6 7<br />

280<br />

O<br />

P<br />

O<br />

OH<br />

O OH<br />

Reference<br />

[1].K. V. Katti, K. Raghuraman, N. Pillarsetty, W. A. Volkert, S. S. Jurisson and T. J. Hoffman, Technetium, Rhenium<br />

and Other Metals in Chemistry and Nuclear Medicine 6, 69-72, Eds., M. Nicolini, G. Bandoli and U. Mazzi, SGE<br />

Editorali, Padova, Italy, 2002.<br />

OH<br />

OH


O-69<br />

ORGANOPHOSPHONATE INHIBITORS OF CATHEPSINS<br />

Paweł Kafarski<br />

Departament of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Technology, Wybrzeże<br />

Wyspiańskiego 27, 50-370 Wrocław, Poland<br />

Lysosomal cysteine proteases, generally known as the cathepsins, play an important role in many<br />

physiological processes such as protein degradation, antigen presentation, bone resorption and<br />

hormone processing. They have also been implicated in many pathological processes including<br />

tumor invasion and metastasis.<br />

For several years we have been engaged in the design and synthesis of phosphono- and<br />

phosphinopeptides as inhibitors of chosen proteases, mostly of metalloproteases. These compounds<br />

are considered to be the closest analogues of the high energy tetrahedral transition-state of the<br />

amide bond hydrolysis. However, similar approach directed towards cysteine proteases failed and<br />

organophosphonates are widely believed as being weak inhibitors of these enzymes.<br />

Here we describe two approaches leading to reasonable inhibitors of cathepsin C and related<br />

cathepsins. The first one relays on construction of tripeptide mimetics 1, which appeared to be<br />

moderate inhibitors of cathepsin C. Although designed as transition state analogues, they<br />

surprisingly exhibited non-competitive mode of binding to the enzyme. Differences in kinetics of<br />

C-terminal acids and esters have been additionally observed<br />

H 2N<br />

O<br />

H<br />

N<br />

O OH<br />

P<br />

R<br />

1<br />

COOR'<br />

281<br />

H 2N<br />

O<br />

H<br />

N<br />

R<br />

2<br />

OH<br />

PO 3R' 2<br />

The second approach based on synthesis of dipeptide mimetics 2 containing C-terminal<br />

phosphonate analogues of bestatin. These compounds appeared to be a new class of very promising<br />

inhibitors of cathepsin C. They appeared to be reversible, competitive and slow binding inhibitors,<br />

with the equilibrium in the inhibitor binding reached within several minutes after addition of<br />

cathepsin C to the mixture of inhibitor and substrate. To our best knowledge the binding affinities of<br />

the two strongest inhibitors towards the enzyme rank amongst the highest, if considering all<br />

low-molecular compounds. Their analogues also appeared to rank amongst the best inhibitors of<br />

other cysteine proteases, namely of papain and cathepsins B and K. Binding mode of these<br />

compounds was studied by means of molecular modelling of the inhibitor-protein interactions by<br />

application of the method implemented in the Ludi program.


O-70<br />

SYNTHESIS AND DENTAL ASPECTS OF<br />

1,3-BIS(METHACRYLAMIDO)PROPANE-2-YL DIHYDROXYPHOSPHATE<br />

F. Zeuner, N. Moszner and J. Angermann<br />

voclar Vivadent AG, Research & Development FL-9494 Schaan/Liechtenstein<br />

Phosphoric acid monoesters 1 and 2 of hydroxyalkyl methacrylates are favourable as components<br />

for dentin adhesives. Due to their acidity they are able to remove the smear layer on dentin and<br />

achieve a strong bond between the restorative material and the tooth substance. However, a<br />

disadvantage of these polymerizable phosphoric acids is their low hydrolytic stability. This problem<br />

should be overcome with monomer 3 containing more hydrolytically stable bonds between the<br />

polymerizable methacrylic group and the strong acidic phosphorus group:<br />

Moreover, in comparison to 1 and 2, compound 3 should have improved polymerizability. The<br />

presentation describes the synthesis, characterization and dental aspects like radical polymerization,<br />

hydrolytic stability, acidity and adhesive properties of the new monomer 3.<br />

282


O-71<br />

NEW EFFICIENT SYNTHESIS OF 2-SUBSTITUTED<br />

BENZOTHIENO[3,2-d]PYRIMIDIN-4(3H)-ONES VIA AN IMINOPHOSPHORANE<br />

Sheng-Zhen Xu, Yang-Gen Hu, Ming-Wu Ding*<br />

Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Central China Normal University, Wuhan,<br />

430079, P. R. China<br />

Thienopyrimidine are of great importance because of their significant antifungal and antibacterial<br />

activities, as well as their good anticonvulsant and angiotensin or H1 receptor antagonistic<br />

activities. 1 Here we wish to report a new efficient synthesis of benzothieno[3,2-d]<br />

pyrimidin-4(3H)-ones.<br />

Iminophosphorane 1 reacted with aromatic isocyanates to give carbodiimides 2, 2 which were<br />

allowed to react with secondary amines, phenols or ROH in the presence of catalytic amount of<br />

potassium carbonate or RO - Na + to give 2-substituted benzothieno[3,2-d] pyrimidin-4(3H)-ones 4 in<br />

good yields.<br />

S<br />

1<br />

COOEt<br />

N=PPh 3<br />

ArNCO<br />

S<br />

2<br />

COOEt<br />

N=C=NAr<br />

HY<br />

The reaction of carbodiimides 2 with primary amine RNH2 (R ≠ H, Me) in the presence of<br />

sodium ethoxide produced selectivly one of the regioisomer 6 via base catalytic cyclization<br />

mechanism. However, another regioisomers 7 were obtained as RNH2 (R=H, Me) were used in the<br />

absence of sodium ethoxide, via a direct cyclization mechanism.<br />

S<br />

2<br />

S<br />

COOEt<br />

N=C=NAr<br />

N<br />

O<br />

N<br />

7<br />

(R = H, Me)<br />

R<br />

NHAr<br />

RNH2<br />

283<br />

S<br />

S<br />

5<br />

S<br />

N<br />

3<br />

6<br />

COOEt<br />

NHAr<br />

Y<br />

EtONa<br />

N<br />

COOEt<br />

N<br />

(R = Et, Pr, Bu, etc)<br />

References:<br />

1. Chambhare, R. V.; Khadse, B. G.; Bobde, A. S.; Bahekar, R. H. Eur. J. Med. Chem. 2003, 38, 89.<br />

2. Braese, S.; Gil, C.; Knepper, K.; Zimmermann, V. Angew. Chem. Int. Ed. 2005, 44, 5188.<br />

N<br />

NHAr<br />

NHR<br />

O<br />

Ar<br />

NHR<br />

S<br />

4<br />

N<br />

O<br />

N<br />

Y<br />

Ar


P-3<br />

CALIXARENE METHYLENEBISPHOSPHONIC ACIDS: ALKALINE PHOSPHATASE<br />

INHIBITION AND DOCKING STUDIES<br />

A. Vovk a , V. Kalchenko b , O. Muzychka a , V. Tanchuk a , I. Muravyova a ,<br />

A. Shivanyuk b , S. Cherenok b and V. Kukhar a<br />

a Institute of Bioorganic Chemistry and Petrochemistry, NAS of Ukraine,02660, Kyiv-94, Ukraine.<br />

b Institute of Organic Chemistry, NAS of Ukraine,02094, Kyiv-94, Ukraine<br />

Calix[4]arenes bearing one or two methylenebisphosphonic acid fragments were characterized as<br />

efficient calf intestine alkaline phosphatase inhibitors [1]. In this study, kinetics of interaction of<br />

these compounds with alkaline phosphatase isoenzymes are analysed.<br />

Calix[4]arene bis-methylenebisphosphonic acid 1 displayed stronger inhibition of alkaline<br />

phosphatase from bovine intestine mucosa than calix[4]arene methylenebisphosphonic acid 2. At<br />

the same time these macrocyclic compounds showed almost identical affinities to bovine kidney<br />

isoenzyme. For elucidation of the molecular mechanism of inhibition the tested compounds 1 and 2<br />

were docked computationally to the active site of E. Coli alkaline phosphatase. On the basis of<br />

results obtained the possible role of functionally important amino acid residues in formation of<br />

enzyme-inhibitor complex at the active centre of alkaline phosphatase is discussed.<br />

References<br />

[1] A.I. Vovk, V.I. Kalchenko, S.A. Cherenok, V.P. Kukhar, O.V. Muzychka,M.O. Lozynsky. Org. Biomol. Chem.<br />

2004, 2, 3162-316<br />

284


P-5<br />

α-(N-BENZYLAMINO)BENZYLPHOSPHONIC ACIDS: STEREOSELECTIVITY OF<br />

BINDING TO PROSTATIC ACID PHOSPHATASE<br />

O.I. Kolodiazhnyi, A.I.Vovk, I.M. Mischenko, S.V. Tanchuk, G.A. Kachkovskyi, S.Yu. Sheiko, V.P. Kukhar<br />

Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, Murmanskaia 1, Kyiv,<br />

UKRAINE E-mail: oikol123@rambler.ru<br />

On the previous ICPC we have reported the asymmetric synthesis of (R)- and<br />

(S)-α-(N-benzylamino)-benzylphosphonic acids and (1R2S)-,(1S2R)-(N-phenylethyl)amino]<br />

arylmethylphosphonic acids (1a,b and 2a,b) of high enantiomeric purity.<br />

HO<br />

HO<br />

O<br />

P Ar -<br />

+<br />

H NH2CH(Me)Ph CI<br />

(RS)-1a, (RS)-2a<br />

285<br />

HO<br />

HO<br />

Ar = Ph (1a,b); Ar =4-C 6 H 4 OMe (2a,b)<br />

O<br />

P Ar<br />

CI<br />

-<br />

+<br />

H NH CH(Me)Ph<br />

2<br />

(SR)-1b, (SR)-2b<br />

Continuing the studies of properties of these compounds, we have tested the activities of<br />

enantiomerically pure α-(N-benzylamino)benzylphosphonic acids against human prostatic acid<br />

phosphatase[1-3] -α-(N-Benzylamino) benzylphosphonic acids have been shown to be a potent<br />

inhibitors exhibiting high specificity toward acid phosphatase from human prostate [1] . As expected,<br />

(R)-α-(N-benzylaminobenzylphosphonic acid demonstrated higher affinities for enzyme than<br />

(S)-enantiomer. However, (1R2S)-phenyl- [1-(phenylethyl)amino]methyl-phosphonic acid 1a was<br />

found to be 40 fold weaker inhibitor than its (1S2R)-analogue 1b. Experimentally tested phosphonic<br />

acids 1a,b and 2a,b have been docked computationally to the active centre of this enzyme.<br />

Implications of theoretical results to the mechanisms of stereospecificity of inhibition of prostatic<br />

acid phosphatase by α-benzylaminobenzylphosphonic acids are discussed.<br />

References<br />

[1] S.A. Beers, C.F. Schwender, D.A. Loughney, E. Malloy, K. Demarest, J. Jordan. Bioorg. Med. Chem. 1996, 4,<br />

1693-1701.<br />

[2] O.I. Kolodiazhnyi, S. Sheiko, I. Guliaiko, E. Grishkun Abstracts of XV International conference on phosphorus<br />

chemistry. Sendai, Japan. 2001. P. 211; Phosphorus, Sulfur and Silicon and related elements (USA) 2002, 177,<br />

2269-2270.<br />

[3] G.A. Kachkovskii, N.V. Andrushko, S.Yu. Sheiko, and O.I. Kolodiazhnyi. Russ. J. Gen. Chem. 2005, 11, 1735-1743.


P-11<br />

GERANYL AND FARNESYL BISPHOSPHONATES INHIBIT PROTEIN<br />

GERANYLGERANYLATION THROUGH ggpp DEPLETION<br />

Andrew J. Wiemer, Huaxiang Tong, David F. Wiemer, Raymond J. Hohl.<br />

University of Iowa. E-mail: raymond-hohl@uiowa.edu<br />

The proliferation of many human cancers is regulated in part by the Ras superfamily of small<br />

GTPases. The function of these proteins is dependent upon their post-translational linkage to<br />

either farnesyl or geranylgeranyl groups that are derived from their respective isoprenoid<br />

pyrophosphates. Nitrogenous bisphosphonates, which are used clinically to treat osteoporosis,<br />

also deplete cells of isoprenoid pyrophosphates leading to diminished protein isoprenylation<br />

although the relationship of the clinical activity to this effect is not completely clear. The clinical<br />

nitrogen-containing bisphosphonates diminish both farnesylation and geranylgeranylation. Our<br />

lab has designed and synthesized a series of novel isoprenoid bisphosphonates (e.g. the digeranyl<br />

bisphosphonate 1) that impacts protein geranylgeranylation but not farnesylation (Bioorg Med<br />

Chem, 2006, 14:4130-6).<br />

This current structure-function study outlines the biological activity of various geranyl- and<br />

farnesyl-containing bisphosphonates and their olefin isomers. As with digeranyl bisphosphonate,<br />

cells treated with these analogs are depleted of intracellular geranylgeranyl pyrophosphate (GGPP),<br />

not farnesyl pyrophosphate (FPP), and protein geranylgeranylation is diminished with no inhibition<br />

of protein farnesylation. All three combinations of olefin isomers of digeranyl bisphosphonate are<br />

biologically active with little loss of potency. Interestingly, of the four possible mono farnesyl<br />

bisphosphonate isomers only those containing the (3E)-olefin are biologically active. This data<br />

further supports our previous studies that show geranyl-containing bisphosphonates inhibit<br />

geranylgeranylation, and shows for the first time that farnesyl containing bisphosphonates are also<br />

biologically active.<br />

(1)<br />

Reference<br />

Shull LW, Wiemer AJ, Hohl RJ, Wiemer DF. Synthesis and biological activity of isoprenoid bisphosphonates.<br />

Bioorganic and Medical Chemistry, 2006, 14:4130-6.<br />

286


P-39<br />

PREPARATION OF NEW [1,4,2]-OXAZAPHOSPHINANES: POTENTIALLY<br />

ANTIDEPRESSIVE AGENT<br />

David Virieux, Jean-Noël Volle, and Jean-Luc Pirat<br />

Laboratoire d’Architectures Moléculaires et Matériaux Nanostructurés ; Institut Charles Gerhardt,UMR 5253 ENSCM,<br />

8 rue de l’Ecole Normale 34296, Montpellier cedex 5, France<br />

Recently, our laboratory developed an original and diasteroselective strategy for the preparation<br />

of new phosphinylated heterocycles: 2-aryl-[1,4,2]-oxazaphosphinanes 1. [1-5] These compounds<br />

might be potentially of a great importance for agrochemical and pharmaceutical applications. [6,7] The<br />

strategy adopted for the formation of these heterocycles 1 consists in a two step procedure: a<br />

diastereoselective addition-cyclization reaction from methylphosphinate and the corresponding<br />

-hydroxy-imine, followed by a pallado-catalyzed arylation.<br />

R OH<br />

H 2PO 2Me<br />

Ph N Ph<br />

R = H ou Ph<br />

O<br />

R OH H<br />

* P<br />

OCH3 *<br />

Ph N Ph<br />

H<br />

t-BuOK<br />

THF/toluene<br />

O O<br />

R O H Ar-X R O Ar<br />

P Pd°(cat)<br />

P<br />

Ph N Ph<br />

H<br />

287<br />

Ph N Ph<br />

H<br />

1<br />

Ar = C 6H 5, p-MeO-C 6H 4, p-Br-C 6H 4, m-Cl-C 6H 4,<br />

3,5-F 2-C 6H 4, 2-pyridine and 2-thiophene<br />

Here, we propose the preparation of new oxazaphosphinanes 3 as potential antidepressive agents<br />

(analogs to hydroxybupropion). Hydroxybupropion is a metabolite formed from well-known<br />

Bupropion drug (Wellbutrin®), twice more selective toward the noradrenergic system than<br />

Bupropion itself.<br />

Me<br />

Me<br />

O<br />

P<br />

O<br />

N<br />

H<br />

R'<br />

Me<br />

R' = H or Me, 3<br />

Cl<br />

Me<br />

Me<br />

O OH<br />

N<br />

H<br />

Me<br />

Hydroxybupropion<br />

Cl<br />

Me<br />

O<br />

Me<br />

Me N<br />

H<br />

Me<br />

Cl<br />

Bupropion (Wellbutrin )<br />

Reference<br />

[1] Cristau, H.-J.; Monbrun, J.; Tillard, M.; Pirat, J.-L. Tetrahedron 2003, 44, 3183-3187.<br />

[2] Cristau, H.-J.; Pirat, J.-L.; Virieux D.; Monbrun, J.; Ciptadi C.; Bekro, Y.A. J. Organomet. Chem. 2005, 690,<br />

2471-2481.<br />

[3] Pirat, J-L.; Monbrun, J.; Virieux, D.; Volle, J.-N.; Tillard, M.; Cristau, H.-J. J. Org. Chem. 2005, 70,<br />

7035-7041.<br />

[4] Pirat, J.-L.; Monbrun, J.; Virieux, D.; Cristau, H.-J. Tetrahedron 2005, 61, 7029-7036.<br />

[5] Volle, J.-N.; Virieux, D.; Starck, M.; Monbrun, J.; Clarion, L.; Pirat, J.-L. Tetrahedron : Asymmetry 2006, 17,<br />

1402-1408.<br />

[6] Zhou, J.; Qiu, Y.; Feng, K.; Chen, R. Synthesis 1999, 1, 40-42.<br />

[7] Wang, B.; Miao, Z.; Huang, Y.; Chen, R. Heteroatom Chem. 2007, 18, 65-69.<br />

R


P-40<br />

ANTITUMOR EFFECT OF BETAINE AND ITS IMPACT ON THE PHOSPHORYLATION<br />

PROCESS OF RATS BEARING S180<br />

Ji Yu-Bin 1 , Zhang Yu-Jin 2<br />

1 Research center on Life science and environmental science of Harbin University of commerce,Harbin 150076, China;<br />

2.<br />

Postdoctal Research of the institute of Materia Medica of Harbin University of commerce<br />

Helongjiang Harbin 150076, China<br />

Objective: to study the anti-tumor activity of betaine and its effects on the phosphorylation<br />

process of rats bearing s180. method: based on rats bearing s180 model, tumor inhibition rate,the<br />

enzyme activity of acp and alp in serum are chosen as indexes, which are determined by the kit tests.<br />

Results: the tumor inhibition rate of betaine of different dosages are 39.8%、25.7%、17.7%<br />

respectively, betaine of high dosage can remarkably increase the activity of acp、alp, p


P-54<br />

SYNTHESIS AND SEPERATION OF L-TRYTOPHAN OLIGO-PEPTIDES ASSISTED BY<br />

PHOSPHORUS OXYCHLORIDE<br />

Li Ma 1 ,Hai-ping Ren 1 ,Kui Lu 1* ,Yu-fen Zhao 2<br />

1 School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450052 china; 2<br />

Department of Chemistry, Xiamen University, Xiamen 361005 China<br />

We have demonstrated that α-amino acids could be assembled into oligo-peptides with the<br />

assistance of inorganic phosphorus [1] . the reaction products can be seperated by reversed phase<br />

high-performance liquid chromatography(rplc) [2] . Similar results were obtained in the reaction of<br />

l-trytophan (l-trp) and phosphorus oxychloride. Compared with different experimental condition ,<br />

the results showed that the proper condition of direct synthesis was the molar ratio of l-trp and<br />

pocl3 of 1 to 1, reaction temperature of 30℃, reaction time of 15 mins and in tetrahydrofuran as<br />

solvent. Through the electrospray ionization mass spectrometry (esi-ms), a series of mass peaks<br />

corresponding to oligo-peptides of l-trp were observed .the dipeptide trp-trp(m/z=391), as well as<br />

cyclo-dipeptide cyclo-trp-trp (m/z=373) were purified by reversed rplc.<br />

Scheme 1 showed the RPLC of the reaction products<br />

This work was financial supported by National Nature Science Foundation of<br />

China(No.20272055, 20572016) , Henan Province Science Foundation for Prominent Youth<br />

(No.0312000900) and Office of Education of Henan Province (No. 2006KYCX017,<br />

200510459015).<br />

References<br />

[1] Lu, K.; Liu, Y.; Zhou, N.; Chen, Y.; Feng, Y.-P. ; Guo, X.-F.; Chen, W.; Qu, L.-B.; Zhao, Y.-F.<br />

Acta Chim. Sinica 2002,60,372 (in Chinese)<br />

[2] Quan Bai, Xiao-juan Ge, Xing-du Gen. The purification of peptide in preparative scale with<br />

reversed phase high-performance liquid chromatography. Chinese Journal of analytical<br />

chemistry.2002,30(9),1126~1129.(in Chinese )<br />

289


P-66<br />

THIOUREIDO DERIVATIVES OF METHYLENEBISPHOSPHONIC ACID AS<br />

POTENTIAL INHIBITORS OF ALKALINE PHOSPHATASES<br />

M. Lozynsky a , A. Vovk b , A. Chuiko a , L. Kononets b , V. Tanchuk b , I. Muravyova b , V. Kukhar b<br />

a b<br />

Institute of Organic Chemistry, NAS of Ukraine, 02094, Kyiv-94, Ukraine; Institute of Bioorganic Chemistry and<br />

Petrochemistry, NAS of Ukraine,02660, Kyiv-94, Ukraine<br />

New substituted thioureidobisphosphonates were synthesized through the reaction of<br />

aminomethylenebisphosphonic acid with corresponding isothiocyanates. The compounds obtained<br />

were evaluated for their inhibitory activity on alkaline phosphatases in vitro.<br />

Introduction of thioureido fragment in a structure of methylenebisphosphonic acid results in<br />

improvement of inhibition of alkaline phosphatases from bovine intestine mucosa and human<br />

placenta. Thioureidobisphosphonates were shown to have inhibition constants in the micromolar to<br />

low millimolar range. The affinity of alkaline phosphatase from bovine intestine mucosa for<br />

1-(3-phenylthioureido)methylenebisphosphonate as the most potent inhibitor is approximately an<br />

order of magnitude higher than for 1-(3-аlkylthioureido)methylenebisphosphonate with methyl,<br />

ethyl, tert-butyl or cyclohexyl substituents. 1-(3-Phenylthioureido)methylenebisphosphonate was<br />

found to be better inhibitor than its derivative with substituents in benzene cycle. The results<br />

suggest that the presence of thione group in the structure of inhibitor is also important for inhibitory<br />

action since effect of 1-(3-phenylureido)methylenebisphosphonate on alkaline phosphatase activity<br />

is considerably lower. To elucidate the binding modes several inhibitors were docked in the active<br />

site of alkaline phosphatase from human placenta. The results obtained reveal that hydrogen bonds<br />

play an important role in the interaction between thioureidobisphosphonate and the enzyme.<br />

N<br />

H 2<br />

PO 3 H 2<br />

PO 3 H 2<br />

R-NCX<br />

NEt 3<br />

R<br />

N<br />

H<br />

X<br />

N<br />

H<br />

PO 3 H 2<br />

PO 3 H 2<br />

290<br />

. n NEt 3<br />

AcONa<br />

AcOH<br />

R<br />

N<br />

H<br />

X<br />

N<br />

H<br />

PO 3 HNa<br />

X=S, O; R=Ph<br />

X=S; R=Alk, Ar<br />

PO 3 HNa


P-67<br />

PHOSPHORYL SUBSTITUTED 3,5-BIS(ARYLIDENE)-4-PIPERIDONES POSESSING<br />

HIGH ANTITUMOR- ACTIVITY<br />

M.V. Makarov a , I.L. Odinets a , O.I. Artyushin a ,E.Yu. Rybalkina b , K.A. Lyssenko b , T.V. Timofeeva c , and M.Yu. Antipina, c<br />

a b<br />

A.N.Nesmeyanov Institute of Organoelement Compounds RAS, Moscow, Russia; Institute of Carcinogenesis, Blokhin<br />

Cancer Research Center, RAMS, Moscow, Russia; c New Mexico Highlands University, Las Vegas, USA<br />

3,5-Bis(arylidene)-4-piperidones (and related compounds) 1 possess anticancer activity [1a] and<br />

reveal antioxidant properties. [1b] Some of these compounds are also fluorescent that makes possible<br />

to use them as dyes for tracing their cellular pathways during chemotherapy and as agents for<br />

photodynamic therapy. [2] The important way to regulate the bioavailability and drug delivery of<br />

these compounds to target organs is an introduction of different substitutes R to the N-atom of a<br />

piperidone moiety. Taking into account that phosphorus-containing groups are prospective as such<br />

modifiers we would like to discuss the synthesis and “structure-activity-fluorescence properties”<br />

relationship of phosphorylated arylidenepiperidones.<br />

N-phosphorylated compounds 3 were obtained via direct phosphorylation by phosphorus(IV)<br />

acid chlorides. Derivatives 4 with elongated alkylene-phosphoryl linker could be synthesized only<br />

by condensation of aldehydes with phosphorylated N-alkylpiperidones as alkylation of the<br />

precursor 2 with alkyl halides afforded surprisingly quaternary salts 5 as the only reaction products.<br />

Compounds 3-5 and their pharmaceutically acceptable salts demonstrated high activity against<br />

human lung carcinoma cell line A549 with IC50 values in the range of 0.3-15.0 M.<br />

Financial support: Russian Basic Research Foundation (05-03-32692).<br />

O<br />

N<br />

Y<br />

+<br />

H<br />

C<br />

O<br />

O<br />

R1 =R2 =OCH2CF3; OPh: R1 =Me, R2 Me2N O<br />

N<br />

P<br />

R<br />

NMe2 =OPh<br />

2<br />

R1<br />

3<br />

iii<br />

Z<br />

Z<br />

1) i; 2) ii<br />

O<br />

N<br />

H<br />

2<br />

291<br />

Z<br />

O<br />

N<br />

CH2X<br />

Z N Hal<br />

H2n+1Cn CnH 2n+1<br />

5<br />

i: HCl/AcOH or EtOH; ii: NaHCO 3/H 2O; iii: R 1 R 2 P(O)Cl/Et 3N/THF; iv: n-C nH 2n+1Hal/K 2CO 3/CH 3CN; n=1-4<br />

Y=H<br />

Y=CH 2X<br />

Z<br />

iv<br />

O<br />

4 X = (CH2) 2P(O)(OEt) 2:<br />

Z = F, NO2, NMe2 n=1-4<br />

References<br />

[1]. a) Dimmock, J. R. at al. Eur J Med Chem, 2002, 37(10), 813. b) K.M.Yisef, M.A.El-Sherbeny,<br />

Arch.Pharm.Chem.Lif Sci, 2005, 338, 181<br />

[2] Nesterov, N. N. at al., Acta Cryst., 2003, C59, 605.<br />

Z<br />

Z


P-77<br />

NEW POLYAMINES PHOSPHORAMIDATE VECTORS FOR GENE THERAPY<br />

Mathieu Mével a , François Lamarche a , Jean-claude Clément a , Jean-jacques Yaouanc a , Laure Burel a , Philippe Giamarchi a ,<br />

Tristan Montier b , Pascal Delépine b , Pierre Lehn b , Paul-Alain Jaffrès a , Claude Férec b .<br />

a- CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques, Université de Bretagne Occidentale, 6 avenue Le<br />

Gorgeu, 29238 Brest, (France) ; b-Unité INSERM 613, Institut de Synergie des Sciences et de la Santé, Université de<br />

Bretagne Occidentale, avenue Foch, 29609 Brest cedex 2 (France)<br />

DNA delivery into cells can be achieved by using synthetic vectors having the capacity to<br />

compact DNA to form a cationic lipoplex which will have the suitable properties to go across the<br />

cell membrane. The next step, will consists to liberate the DNA plasmid into the cyctoplasm<br />

followed by its migration up to perinuclear region and finally across the nuclear membrane. The<br />

chemical structure of the synthetic vectors can be classified into two categories: cationic polymers<br />

(PEI, …) and cationic lipids. In our group, cationic lipids possessing structure inspired from<br />

phospholipids present into membranes have been synthesized and tested for in vivo and in vitro<br />

essays [1, 2, 3]. Of note, many cationic polymers (e.g. PEI) or cationic lipids (DOGS, DPPES, DOSPA),<br />

identified by their transfection efficiency, are characterised by the presence of several amino<br />

functional groups on their backbone. We endeavour the synthesis of cationic lipids having a<br />

phosphoramidate lipidic moiety and a polyamino polar headgroup. For this study, the polar<br />

headgroup is formed by the spermine as depicted below.<br />

Reference<br />

[1 ]J.C. Clément, P. Delépine, H des Abbayes, C, Férec, K. Le Ny, T. Montier, J.J. Yaouancfrench patent N°0214044<br />

(2002), PCT n° FR0350116 (07/11/03).<br />

[2 ]T. Montier, P. Delépine, K. Le Ny, F. Blanc, Y. Fichou, M. Le Bris, D. Gillet, E. Picquet, J.C. Clément, J.J.Yaouanc,<br />

H des Abbayes, C. Férec, Recent Res.Devel. Chem., 2003,1, 41-58.<br />

[3 ]T. Montier, P. Delépine, K. Le Ny, Y. Fichou, M. Le Bris, E. Hardy, E. Picquet, J.C. Clément, J.J. Yaouanc,C. Férec,<br />

Biochimica et Biophysica Acta, 2004, 1665, 118-133.<br />

292


P-79<br />

SYNTHESIS AND DRUG RELEASE BEHAVIOR OF<br />

UNSATURATED POLYPHOSPHOESTER<br />

Qiu Jin-Jun, Bao Rui, Liu Cheng-Mei*<br />

Department of Chemistry, Huazhong University of Science and Technology, Wuhan 430074<br />

Polyphosphoester was a kind of biodegradable polymer with excellent biocompatibility, which<br />

was investigated in drug delivery, gene carrier and tissue engineering [1] . A novel unsaturated<br />

polyphosphoester(UPPE) containing fumarate segment in repeat units was first synthesizd by<br />

condensation polymerization reaction (Scheme 1) [1] . Fumaric acid, 1,2-propylene glycol and<br />

phosphorous oxychloride were used as the raw materials. Structure of the polymer was<br />

characterized by FT-IR and NMR( 1 H, 13 C, 31 P). The novel unsaturated polyphosphoester could be<br />

crosslinked in situ with N-vinyl pyrrolidone(NVP) for used as an injectable bone tissue engineering<br />

scaffolds material.<br />

Cl<br />

O<br />

P Cl + HO<br />

CH3 O<br />

O<br />

O<br />

OH<br />

NEt3 O<br />

P<br />

O<br />

O<br />

CH3 O<br />

CH3 Scheme 1 Synthesis of unsaturated polyphosphoester.<br />

This paper reported the in vitro drug releases behavior of the crosslinking system of UPPE/NVP<br />

with different contents of ciprofloxacin and different UPPE/NVP ratios (Table 1) in phosphate<br />

buffer solution(pH 7.4) at 37 o C. The results indicated that the system with less content of<br />

ciprofloxacin released more rapidly when the UPPE/NVP ratio was kept at a constant value, the<br />

system with higher NVP/UPPE ratio released more rapidly when the content of ciprofloxacin was<br />

kept at a constant value.<br />

References<br />

[1].Zhao Z., Wang J., Mao H.Q., Polyphosphoesters in drug and gene delivery. Advanced Drug Delivery Reviews 2003,<br />

55:483–499.<br />

[2]. Jin-Jun Qiu, Cheng-Mei Liu, Fen Hu, Xiao-Dong Guo, Qi-Xin Zheng. Synthesis of Unsaturated Polyphosphoester<br />

as a Potential Injectable Tissue Engineering Scaffold Material. Journal of Applied Polymer Science, 2006, 102(4):<br />

3095-3101.<br />

293<br />

O<br />

CH 3<br />

CH 3<br />

O<br />

O<br />

O<br />

O<br />

O<br />

CH3 n


P-80<br />

IN VITRO DEGRADATION PROPERTIES OF UNSATURATED POLYPHOSPHOESTER<br />

β-TRICALCIUM PHOSPHATE COMPOSITES<br />

Qiu Jin-Jun, Bao Rui, Liu Cheng-Mei*<br />

Department of Chemistry, Huazhong University of Science and Technology, Wuhan 430074<br />

A novel unsaturated polyphosphoester(UPPE) was synthesized for used as an injectable bone<br />

repair material [1] . From the point of chemical structure, polyphosphoesters are analogs of nucleic<br />

and teichoic acids with excellent biodegradability and biocompatibility [2] . The phosphoester bond in<br />

the polyphosphoester backbone can be cleaved by water and possibly enzymatic digestion under<br />

physiological conditions. In this paper in vitro degradation property of the crosslinked composites<br />

formed by UPPE, N-vinyl pyrrolidone(NVP) and β-tricalcium phosphate(β-TCP)(Table 1) was<br />

investigated. The surface morphology of degraded sample was imaged by scanning electron<br />

microscopy (SEM).<br />

The results indicated that the UPPE/NVP/β-TCP crosslinked composite was degradable in<br />

simulated body fluid. Mechanical property of degraded sample was close to that of human<br />

cancellous bone, and surface of the degraded sample exhibited porous morphology which will<br />

benefit to the attachment and growth of the osteoblast cell(Figure 1). The physical<br />

parameters(sample mass, mechanical property, et al.) changed dramatically during the initial stages<br />

of degradation. After 48 h of degradation, the physical parameters changed gradually due to the<br />

slow degradation of the crosslinked networks.<br />

Table 1 Formulation of UPPE/NVP networks evaluated in degradation studies.<br />

Components<br />

Formulation<br />

UPPE NVP TCP BPO DMT<br />

F1 1.0g 0.7g 0.6g 0.003g 0.005g<br />

F2 1.0g 1.0g 0.6g 0.003g 0.005g<br />

F1<br />

Figure 1 Scanning electron micrographs of the F1 and F2 samples degraded for 120 days in SBF. The<br />

micrographs were taken at 20000×magnification and the white bar within the image represents 1 µm.<br />

References<br />

[1].Jin-Jun Qiu, Cheng-Mei Liu, Fen Hu, Xiao-Dong Guo, Qi-Xin Zheng. Synthesis of Unsaturated Polyphosphoester<br />

as a Potential Injectable Tissue Engineering Scaffold Material. Journal of Applied Polymer Science, 2006, 102(4):<br />

3095-3101.<br />

[2].Wang D.A., Williams C.G., Li Q., Sharma B., Elisseeff J.H. Synthesis and characterization of a novel degradable<br />

phosphate -containing hydrogel. Biomaterials 2003, 24: 3969–3980.<br />

294<br />

F2


P-82<br />

THE SYNTHESIS, ACID-BASIC AND MEMBRANE-TRANSPORT PROPERTIES OF<br />

THE PHOSPHORYLATED AMINES<br />

Rafael A. Cherkasov, Airat R.Garifzjanov, Maxim V. Khakimov, Alexey S. Talan and Gul’nara A. Ivkova<br />

Kazan state university, Kremlevskaya, 18, Kazan, 420008, Russia<br />

The row of the aminophosphates, α-, β- and γ-aminophosphonates and aminoalkylphosphates (I)<br />

were synthesized by the classical methods of organophosphorus chemistry – via the Pudovik,<br />

Kabachnik-Fields and Todd-Atterton reactions<br />

The measuring of their acid-basic properties shows that all the compounds of the (I) structural<br />

pattern have the lesser basic properties being compared with the corresponding primary and<br />

secondary aliphatic amines. This circumstance can be explained with the strong<br />

electron-withdrawing properties of the phosphoryl unit. The tendency of the bacisity increasing<br />

parallel to the alkyl chain size growth is evident.<br />

We have investigated the membrane-transport properties of the amines (I) in relation to the strong<br />

mineral acid – perchloric acid and polybasic organic acids such as oxalic and tartaric. The transport<br />

flow of the acids depends from the bacisity of the proton-accepting units of the molecule carriers<br />

having the aminophosphonates and aminoalkylphosphates structures. Nevertheless<br />

aminophosphates behave themselves more likely as the phosphoryl compounds, possessing the<br />

lesser transport properties may be due the low bacisity of the nitrogen atom bound with the<br />

phosphorus atom.<br />

The mechanism of the membrane extraction is discussed. As we revealed it is different for the<br />

each pair substrate-carrier and depend from the structure of the H-complexes formed. The influence<br />

of the inner- and intramolecular H-bonds is also discussed.<br />

The work was realized under financial support of RFBR (grant № 04-03-32906).<br />

295


P-102<br />

IDENTIFICATION OF SELF-ASSEMBLY PRODUCTS OF VALINE MEDIATED BY<br />

PHOSPHORUS TRICHLORIDE BY ESI MASS SPCETROMETRY<br />

Wenjie Zhao 1 Li Ma 1 Kui Lu 1 * Yufen Zhao 2<br />

1.School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450052, China;<br />

2.Department of Chemistry, Xiamen University, Xiamen 361005, China<br />

Organic phosphorus reagents have been used in synthesis of peptides and cyclopeptides as<br />

active and condensate reagents [1, 2] . Cyclopeptides are playing more and more important role in<br />

biological modeling pharmaceutical design, nano- and molecular devices, biological sensors and<br />

catalysts [3] . We have reported that a-amino acids could be assembled into homo-peptide libraries<br />

with the assistance of phosphorus oxychloride or phosphorus pentachloride [4,5] . In our recent study,<br />

Amino acids also could be assembled into 2~15 homo-peptides and homocyclic peptides by<br />

phosphorus trichloride activation. ESI-MS/MS was used to study the products of reaction and<br />

confirm the structures.<br />

After the reaction of L-Valine(L-Val) with phosphorus trichloride for 48h then quenched with<br />

H2O or various alcohols, the reaction mixtures yielded the corresponding peptides or peptide esters<br />

and cyclopeptides, respectively. To confirm the product structures of homocylic peptides, the<br />

MS/MS spectra of [M+H] + ions were investigated by collision-induced dissociation (CID) tandem<br />

mass spectrometry. The main fragment ions of [M+H] + ion were [M+H-CO] + , [M+H-HCONH2] +<br />

and [M+H-NHCHRCO] + . The protonated cyclo-peptide for valine could yield ions [M+1-28] + ,<br />

[M+1-45] + , [M+1-99] + by stepwise loss of carbon monoxide, formylamine and a valine residue. For<br />

example, the [M+H] + ion of cyclo-(Val)6 at m/z 595 produced the fragment ion at m/z 567<br />

corresponding to [M+H-CO] + , the fragment ion at m/z 550 corresponding to [M+H-HCONH2] + , the<br />

fragment ion at m/z 496 corresponding to [M+H-NHCHRCO] + . In the same way, the [M+H] + ion of<br />

cyclo-(Val)5 at m/z 496 produced the fragment ions at m/z 468, m/z 451 and m/z 397, the [M+H] +<br />

ion of cyclo-(Ala)5 at m/z 427 produced the fragment ions at m/z 399, m/z 382 and m/z 356,<br />

respectively.<br />

Acknowledgements: The authors would like to thank the financial supports from the Chinese<br />

National Science Foundation (No.20272055, 20572016), Henan Province Science Foundation for<br />

Prominent Youth (No.0312000900) and Office of Education of Henan Province (No.<br />

2006KYCX017, 200510459015).<br />

References:<br />

1. C. J. Zhu, X. L. Yang, S. X. Cao , et al. Rapid Commun. Mass Spectrom., 2003,17,825.<br />

2. S. Mc Murry, C.A. Lewis, N.V. Obeyesekere. Pept. Res., 1994, 7, 195.<br />

3. D.T. Bong, T. D. Clark, J. R. Granja, et al. Angew. Chem. Int. Ed., 2001, 40 , 988.<br />

4. N. Zhou, K. Lu, Y. Liu, et al. Rapid Commun. Mass Spectrom., 2002,16, 919.<br />

5. H. Li, W. J. Zhao, S. X. Cao, et al. Chem. J. Chinese Universities, 2004, 25, 1866.<br />

296


P-108<br />

DISCOVERY OF ALKENYLPHOSPHORUS COMPOUNDS AS A NEW CLASS OF<br />

CYTOTOXIC AGENTS FOR CANCER CELLS<br />

Xiaohui Wang and Li-Biao Han<br />

National Institute of Advanced Industrial Science and Technology Tsukuba, Ibaraki 305-8565, Japan; E-mail:<br />

libiao-han@aist.go.jp<br />

A series of Alkenylphosphorus compounds were synthesized and evaluated for anticancer activity<br />

using several tumor cell lines. The results showed that HCC3 was the most potent anticancer agent<br />

with IC50 values lower than those of the reference drug cisplatin. The cellular effects of the tested<br />

compounds had much less cytotoxic effect on growth of NIH3T3 cells, while they produced<br />

pronounced inhibition of S180 cell growth. Structure-activity relationship indicated that the double<br />

bonds of the unsaturated phosphinoyl moiety was essential for the cytotoxic activity.<br />

Alkenylphosporus compounds were further found to induce apoptosis in different cell lines as<br />

evidenced by apoptotic ELISA assay.<br />

297<br />

Control<br />

Treating with an alkenylphosphorus compound<br />

This work was partially supported by New Energy and Industrial Technology Development<br />

Organization (NEDO) of Japan (Industrial Technology Research Grant Program in 2004).


P-109<br />

THE SYNTHSIS OF TRIPYRROLE PEPTIDE CONTAINING PHOSPHONYL<br />

Li-feng Cao 1 , Li-li Shen 1 ,Ru-yi Zou 1 , Cun-jiang Liu 1 , Yong Ye* 1 , Xin-cheng Liao* 1 , Yu-fen Zhao 1,2<br />

1 .Department of Chemistry, Key Laboratory of Chemical Biology and Organic Chemistry, Zhengzhou University,<br />

Zhengzhou, 450052, China; 2 .The Key laboratory for Bioorganic Phosphorus Chemistry and Chemical Biology<br />

(Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084,China. *E-mail:<br />

yeyong@zzu.edu.cn<br />

Many research efforts have been aimed at targeting specific sequences in DNA with synthetic<br />

ligands with the idea of designing both drugs and molecular probes for DNA polymorphism. Minor<br />

groove binders are one of the most widely studied class of agents characterized by high level of<br />

sequence specificity and they are still an interesting class of DNa ligands which demonstrate to<br />

possess several biological activities [1-3] .<br />

The tripyrrole peptide distamycin A is a naturally occurring antibiotic agent isolated in 1962 and<br />

subsequently found having interesting antibacterial and antiviral activities. Our group had found<br />

some phosphonyl amino acid have good biological activity[4]. In order to obtain high biological<br />

activity compound, a series of tripyrrole peptide containing phosphonyl were synthesized. The<br />

structures of these compounds was confirmed by 1H NMR, 31P NMR, MS and IR. The structure of<br />

target compouond is shown at follow:<br />

The title compounds were synthesized by 8 steps. The N-methylpyrrole containing nitro group<br />

react with amino acid ester, then couple with dipyrrole carboxylic acid. To achieve the optimum<br />

result of tripyrrole/amino acid ester conjugate, TLC was employed to monitor the progress of the<br />

coupling reaction. After reduction of the nitro group in tripyrrole/amino acid ester conjugate, the<br />

phosphonyl was introduced to it and title compound was formed. The activity of title compounds<br />

are being continued.<br />

Acknowledgments<br />

The authors would like to thank the financial supports from NNSFC (No.20602032 and 20572061)<br />

Reference<br />

[1]. J. W. Trauger, E. E. Baird, P. B. Dervan, Nature, 1996, 382, 559.<br />

[2]. S. White, E. E. Baird, P. B. Dervan, Chem. Biol., 1997, 4, 569.<br />

[3]. J. M. Gottesfeld, L. Neely, J. W. Trauger, E. E. Baird, P. B. Dervan, Nature, 1997, 387, 202.<br />

[4]. Y. S. Li, Y. F. Zhao, et al., Bioorganic & Medicinal Chemistry, 2000, 8, 2675.<br />

298


P-142<br />

DEVELOPING A SIMPLE ASSAY TO SCREEN FOR ORGANOPHOSPHATASES<br />

Gareth Williams<br />

Dstl Porton Down, UK, Email: grwilliams@dstl.gov.uk<br />

Organophosphorus nerve agents could pose a hazard to both civilian populations and military<br />

personnel, and improved post-exposure medical-countermeasures are potentially of interest. There<br />

is also a drive to find improved decontamination methods especially ones that are<br />

environmentally-benign. Enzymes could provide a novel solution.<br />

There are already a number of enzymes known to catalyse the hydrolysis of organophosphates<br />

such as phosphotriesterase (Pseudomonas diminuta), DFPase (Loligo vulgaris) and Human<br />

Paraoxonase, PON1 (Serum paraoxonase family).<br />

To find potential enzymes with high Kcat values, large libraries of mutated enzymes need to be<br />

exploited, which necessitates the development of a simple high-throughput screen. This process is<br />

commonplace in the pharmaceutical industry where vast quantities of compounds are screened<br />

against one target enzyme, however our process is the reverse, and the target enzyme will be<br />

modified rather than substrates.<br />

This poster reports the synthesis of a number of fluorogenic nerve agent analogues that mimic the<br />

parent nerve agents effectively, and are suitable tools for screening candidates for directed evolution<br />

of efficient nerve-agent organophosphatases.<br />

299


P-143<br />

THE PHARMACOKINETICS ANALYSIS OF THE<br />

PHOSPHORYL PEPTIDES IN MCF-7/ADR CELLS<br />

Peng Zhang, Hongxia Liu, Zhenhua Xie ,Feng Liu, Mian Liu ,Yuyang Jiang*<br />

The Key Laboratory of Chemical Biology, Guangdong Province, Graduate School at Shenzhen, Tsinghua University,<br />

Shenzhen 518055, P.R.China Tel:86-755-26032094, Fax:86-755-26036087<br />

E-mail:Jiangyy@sz.tsinghua.edu.cn<br />

The modification (such as phosphorylation, methylation, acetylation and glycosylation) of amino<br />

acids and peptides might have incurred a great improvement in their physiochemical property. The<br />

oligopeptide N-diisopropyloxyphosphoryl- valine- phenylalanine-3,4,5- trimethoxyaniline(DIPP-Val-Phe-TMOA)<br />

is a novel potential pre-drugs which has the function to induce<br />

the apoptosis of multiple tumor cells. Now,we have developed a HPLC/UV method to study the<br />

pharmacokinetics of DIPP-Val-Phe-TMOA in MCF-7/ADR cells. The peak concentration (Cmax)<br />

of DIPP-Val-Phe-TMOA in MCF-7/ADR cells was up to 12.32 μg.mL-1 at 3.15h. The absorption<br />

half-life(T1/2Ka) and elimination half-life(T1/2K) of DIPP-Val-Phe-TMOA was 2.67±0.05h<br />

and 10.24±0.07h, respectively. The area under the cell concentration-time curve(AUC) was<br />

203±0.456 μg.h.mL-1. It suggested that DIPP-Val-Phe-TMOA possessed higher hydrophobicity,<br />

and could easily penetrate into the membrane of MCF-7/ADR cells. The results also revealed that<br />

DIPP-Val-Phe-TMOA has better biological activity and longer half lifetime. These are consistent<br />

with the results of biological experiments.<br />

Acknowledgments<br />

This work was supported by the National Natural Science Foundation (China, 20472043, 20572060,<br />

20672068), the Project of Science and Technology of Guangdong Province<br />

( 2005A11601008),Mega-Project of Science Research of Ministry of Science and Technology<br />

(China, 2005CCA03400), the Natural Science Foundation of Guangdong Province (China,<br />

06028200)<br />

300


P-145<br />

NEW PHOSPHORAMIDATE DICATIONIC VECTORS FOR GENE THERAPY<br />

Mathieu Mével a , François Lamarche a , Jean-claude Clément a , Jean-jacques Yaouanc a , Laure Burel a , Philippe Giamarchi a ,<br />

Tristan Montier b , Pascal Delépine b , Pierre Lehn b , Paul-Alain Jaffrès a , Claude Férec b<br />

a- CEMCA, UMR CNRS 6521, Faculté des Sciences et Techniques, Université de Bretagne Occidentale, 6 avenue Le<br />

Gorgeu, 29238 Brest, (France) ; b-Unité INSERM 613,, Institut de Synergie des Sciences et de la Santé, Université de<br />

Bretagne Occidentale, avenue Foch, 29609 Brest cedex 2 (France)<br />

It’s widely believed that gene therapy will become an efficient way for the treatment of<br />

diseases such as cancer, cystic fibrosis and for vaccination. The essential requirements for gene<br />

delivery are the transport of DNA through the cell membrane and ultimately the nucleus. Different<br />

strategies have been used for the delivery of genetic material classified as viral or synthetic delivery<br />

systems. The chemical structure of the synthetic vectors can be classified into two categories:<br />

cationic polymers (PEI, …) and cationic lipids. In our group, cationic lipids possessing structure<br />

inspired from phospholipids present into membranes have been synthesized and tested for in vivo<br />

and in vitro essays1, 2, 3. To increase the condensation of DNA and to decrease the toxicity during<br />

the transfection, we raised the number of cationic charges on our phosphoramidates as depicted on<br />

the following scheme.<br />

Reference<br />

1.J.C. Clément, P. Delépine, H des Abbayes, C, Férec, K. Le Ny, T. Montier, J.J. Yaouanc, French patent N°0214044<br />

(2002), PCT n° FR0350116 (07/11/03).<br />

2.T. Montier, P. Delépine, K. Le Ny, F. Blanc, Y. Fichou, M. Le Bris, D. Gillet, E. Picquet, J.C. Clément, J.J. Yaouanc,<br />

H des Abbayes, C. Férec, Recent Res.Devel. Chem., 2003,1, 41-58.<br />

3.T. Montier, P. Delépine, K. Le Ny, Y. Fichou, M. Le Bris, E. Hardy, E. Picquet, J.C. Clément, J.J. Yaouanc, C. Férec,<br />

Biochimica et Biophysica Acta, 2004, 1665, 118-133.<br />

301


P-146<br />

NOVEL CIDOFOVIR PRODRUGS: CONCEPTUAL AND SYNTHETIC STRATEGIES<br />

Boris A. Kashemirov 1 , Joy Lynn F. Bala 1 , Xiaolan Chen 2 , Zhidao Xia 3 , R. Graham G.Russell 3 , and Charles E.<br />

McKenna 1 *<br />

1. Department of Chemistry, University of Southern California, Los Angeles, CA, 90089 USA.<br />

2. Procter & Gamble Pharmaceuticals, Mason, OH, 45040 USA.<br />

3. University of Oxford, Nuffield Department of Orthopedic Surgery, Nuffield Orthopedic Center, Headington, Oxford,<br />

OX3 7LD UK.<br />

Nitrogen-containing bisphosphonate (N-BP) drugs are widely used for the treatment of various bone diseases,<br />

including osteoporosis and Paget’s disease. N-BPs, such as risedronate or zoledronate, inhibit farnesyl diphosphate<br />

synthase (FDPS), which thereby prevents the prenylation of crucial GTPase proteins in osteoclasts. In addition, some<br />

BPs and related phosphonocarboxylate (PC) analogs have demonstrated anti-neoplastic effects; however, these effects<br />

are currently poorly understood. As a result, N-BPs and their PC analogs linked to imaging agents, such as fluorescent<br />

labels, are an attractive target. Activated esters of fluorescent labels are typically conjugated to drugs containing<br />

primary amines, therefore forming a stable amide bond. Parent drugs lacking this functionality further require structural<br />

modifications to introduce an appropriate site for direct conjugation. Specifically, risedronate contains a pyridine ring<br />

that is not chemically suitable for direct acylation by the fluorescent label. Herein, we report the first synthesis of a<br />

fluorescently labeled analog of risedronate and similar labeling of other risedronate analogs. These syntheses include a<br />

novel coupling strategy developed at USC utilizing linker moieties between the drugs and labels. The fluorescent<br />

compounds have been evaluated in hydroxyapatite bone affinity assays.<br />

302


P-147<br />

FLUORESCENTLY LABELED RISEDRONATE AND RELATED ANALOGS: NOVEL<br />

SYNTHESIS AND EVALUATION AS IMAGING PROBES<br />

Larryn W. Peterson 1 , Boris A. Kashemirov 1 , John M. Hilfinger 2 , and Charles E. McKenna 1 *<br />

1 Dept. of Chemistry, University of Southern California, Los Angeles, CA 90089 USA;<br />

2 TSRL, Inc., Ann Arbor, MI 48108 USA<br />

Cidofovir (HPMPC, 1) is a broad-spectrum antiviral agent that is used (Vistide®) to treat AIDSrelated CMV retinitis.<br />

Cidofovir is of particular interest as a potential therapy for orthopox virus infections, and it is currently the only drug<br />

approved for the treatment of smallpox. An important limitation of cidofovir as a therapeutic agent is its low oral<br />

bioavailability resulting in poor transport into cells. In principle, the bioavailability of cidofovir can be increased by<br />

using a prodrug approach; attachment of auxiliaries to the parent drug mask the negative charges allowing for increased<br />

transport. Once inside the cell, the moiety is cleaved to release the active parent drug. We have recently synthesized two<br />

new types of prodrugs incorporating benign peptide auxiliaries. The first prodrug 2 incorporates a Ser-containing<br />

peptide at R1 with R2 = Et, while the second prodrug 3 uses a linker to a peptide at R1 with R2 = H. In our experience,<br />

mono-esterification of the 1 phosphonate proved difficult as intramolecular cyclization intervened. Therefore, 2 was<br />

synthesized from an intermediate in the synthesis of cidofovir. Dealkylation and debenzylation followed by conjugation<br />

with the dipeptide afforded 2. 3 was synthesized by attaching an appropriate linker at R1 and subsequent conjugation<br />

with a peptide. The detailed syntheses and preliminary biological evaluation of these novel cidofovir prodrugs will be<br />

discussed.<br />

303


P-149<br />

SYNTHESES AND CHARACTERIZATIONS OF α-AMINOPHOSPHONIC ACIDS AND<br />

THEIR DERIVATIVES<br />

Fang Hua 1 , Fang Meijuan 2 , Liu Linna 1 , Zhao Yufen 1, 2 *<br />

1The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, Xiamen University, Xiamen<br />

361005, China.<br />

2 Department of Pharmaceutical Science, Medical College, Xiamen University, Xiamen 361005, People’s Republic of<br />

China, Xiamen University.<br />

Compounds with phosphorus-containing structures are an important part of chemistry, because of<br />

their applications in medicine fertilizers,pesticides and plant growth regulators.<br />

-Aminophosphonic acids and their derivatives, as phosphorus analogs of amino acid, have<br />

attracted much attention because they show widely biological activities. In this paper, the<br />

compounds, (Benzoylamino-phenyl-methyl)- phosphonic acid dialkyl esters were synthesized.<br />

Their structures were confirmed by IR, 31P, 1H, 13C NMR, MS and elemental analysis. The study<br />

on the antibacterial and antitumor activities of these compounds was underway.<br />

Compounds 2a-2g were synthesized as shown in Scheme 1 according to methods proposed in the<br />

literature1.2. General procedures are shown as follows.<br />

X<br />

O<br />

Cl +<br />

R 1O<br />

OR 1<br />

P O<br />

1<br />

NH 2<br />

304<br />

Et 3N ice bath<br />

CH 2Cl 2<br />

R 1O<br />

OR1 P O O<br />

2a-2i<br />

Scheme 1 Synthetic pathway of compounds 2a-2i<br />

Compound 1 (1 mmol) was dissolved in dry dichloromethane (20<br />

mL) to which triethylamine (0.4 mL) was added, and the solution was<br />

added dropwise to 4-substituted benzoyl chloride (1.2 mmol) in<br />

CH2Cl2 (10 mL). After 6 h completion of the reaction, the solvents<br />

were removed under reduced pressure. The residue was added 15 mL<br />

water and then extracted with ethyl acetate (3 × 15 mL), dried over<br />

anhydrous MgSO4 and concentrated under vacuum. The residual<br />

liquid was purified by silicon gel column chromatography (petroleum<br />

ether/ethyl acetate = 2:1) to give compounds products 2a-2ias colorless<br />

solids.<br />

References<br />

1. Takahashi H., Yoshioka M., Imai N., Onimura K., Kobayashi S. Synthesis 1994; 8: 763.<br />

2. Villeneuve G. B., Chan T. H., TELEAY Tetrahedron Lett. 1997; 38 (37): 6489.<br />

N<br />

H<br />

X<br />

Comp. X R1<br />

2a CH<br />

i<br />

Pr<br />

2b N<br />

i<br />

Pr<br />

2c COCH3<br />

i<br />

Pr<br />

2d CCH3<br />

i<br />

Pr<br />

2e CNO2<br />

i<br />

Pr<br />

2f COEt<br />

i<br />

Pr<br />

2g Cl<br />

i<br />

Pr<br />

2h CH Et<br />

2i N Et


P-150<br />

LIGAND-PROTEIN INVERSE DOCKING AS A POTENTIAL TOOL IN THE<br />

COMPUTER SEARCH OF PROTEIN TARGETS OF MYCOEDIKETOPIPERAZINE, A<br />

NOVEL FUNGAL METABOLITE FROM A PAPULARIA SP.<br />

Fang Meijuan 1 *, Fang Hua 2 , Ji Zhiliang 3 , Luo Shuna 2 , Zhao Yufen 1,2<br />

1 Department of Pharmaceutical Science, Medical College, Xiamen University, Xiamen 361005, People’s Republic of<br />

China, Xiamen University. E-mail: fangmj@xmu.edu.cn<br />

2 Department of Chemistry, The Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and<br />

Chemical Engineering, Xiamen University, Xiamen 361005, People’s Republic of China<br />

3 Bioinformatics Research Group, School of Life Sciences, Xiamen University, Xiamen 361005<br />

Fujian Province, PR china<br />

Mycoediketopiperazine, a novel fungal metabolite from a Papularia sp., which was isolated from<br />

a highly organicphosphorous polluted environment. Mycoediketopiperazine exhibited low potent<br />

cytotoxic activity in the KB cell line (IC50 120 ug/mL) by the MTT assay protocol which was<br />

adapted from that described by Mosmann. And it no shows antimicrobial activity. Owing to novel<br />

structure of Mycoediketopiperazine and no find high bioactivity of the compound in experiments,<br />

there is a need to develop a method for searching potential protein targets of Mycoediketopiperazine<br />

to facilitate the prediction of unknown and secondary therapeutic target proteins and those related to<br />

the side effects and toxicity of a drug or drug candidate.<br />

An inverse-docking procedure called INVDOCK has been introduced to conduct<br />

computer-automated inverse-docking searches of this database to identify potential protein targets<br />

of a small molecule. Hence, Mycoediketopiperazine is investigated in this study. INVDOCK is a<br />

ligand–protein inverse docking algorithm, which conducts computer-automated search of potential<br />

protein targets of a small molecule by attempting to dock it to a cavity of each of these proteins. A<br />

cavity is represented by a cluster of overlapping spheres that fill-up that cavity. This underlying<br />

cavity database is generated from the protein 3D structures of protein data bank (PDB). The crystal<br />

structure of Mycoediketopiperazine was used as the docked structure of ligand.<br />

Mycoediketopiperazine is flexibly docked into the cavity by a procedure involving multiple<br />

conformer shape-matching alignment of the molecule to the cavity.<br />

Using the inverse-docking process, we found 456 putative protein targets to wich<br />

Mycoediketopiperazine can bind or weakly bind. Figure 1 shows the ligand-protein interaction<br />

energy E of all protein docked with Mycoediketopiperazine. Potential human and mammalian<br />

protein targets strongly docked with Mycoediketopiperazine identified by INVDOCK are given in<br />

Table 1 along with the respective ligand-protein interaction energy E (E≤-60 kcal/mol). The<br />

ligand-protein interaction energy E that Mycoediketopiperazine docked to one of the identified<br />

protein targets, RNA inhibitor substrate (PDB Id: 1a52) is -74.0 kcal/mol.<br />

305


Tab. 1 Therapeutic targets of Mycoediketopiperazine identified by INVDOCK search (E≤-60 kcal/mol)<br />

PDB Protein (HUMAN) Molecular Function E(kcal/mol)<br />

1m5p RNA INHIBITOR SUBSTRATE none -74.0<br />

1lzj GLYCOSYLTRANSFERASE B Transferring hexosyl groups -71.2<br />

1imb INOSITOL MONOPHOSPHATASE Inositol or phosphatidylinositol phosphatase activity -70.6<br />

1gzu<br />

NICOTINAMIDE<br />

MONONUCLEOTIDE ADEN<br />

Nucleotidyltransferase activity -69.7<br />

2bcu DNA POLYMERASE LAMBDA none -69.4<br />

1m5o RNA SUBSTRATE none -68.7<br />

1nn3<br />

SIMILAR TO THYMIDYLATE<br />

KINASE<br />

Thymidylate kinase activity; ATP binding -65.9<br />

1fos C-JUN PROTO-ONCOGENE none -63.4<br />

1z0a<br />

RAS-RELATED PROTEIN<br />

RAB-2A<br />

none -63.0<br />

1ga5<br />

ORPHAN NUCLEAR RECEPTOR<br />

NR1D1<br />

ligand-dependent nuclear receptor activity; zinc ion<br />

binding; sequence-specific DNA binding<br />

-62.8<br />

1dlh HLA-DR1 none -62.3<br />

1mck<br />

IMMUNOGLOBULIN LAMBDA<br />

LIGHT CHAI<br />

none -61.2<br />

1ef1 MOESIN Cytoskeletal protein binding -61.0<br />

1ozu<br />

SUPEROXIDE DISMUTASE<br />

[CU-ZN]<br />

Copper, zinc superoxide dismutase activity; metal<br />

ion binding<br />

-60.8<br />

Fig. 1 Therapeutic targets of Mycoediketopiperazine identified by INVDOCK search<br />

Reference<br />

[1] Chen YZ, Zhi DG. Ligand-protein inverse docking and its potential use in computer search of putative protein<br />

targets of a small molecule [J]. Pharm Ther, 2000, 86:191-198.<br />

[2] Ji ZL, Wang Y, Yu L, et al. In silico search of putative adverse drug reaction related proteins as a potential tool for<br />

facilitating drug adverse effect prediction [J]. Toxicology Letters, 2006, 164: 104-112.<br />

306


P-151<br />

SYNTHESIS OF MOPHOLINO OLIGONUCLEOTIDE WITH NORMAL PHOSPHATE<br />

BACKBONE BY PHOSPHORAMIDITE METHODOLOGY<br />

Pu-Qin Cai 1, 2 , Nan Zhang 2 , Chun Guo 1 , Pei-Zhuo Zhang 4 , Yu-Yang Jiang 1, 2 *, Yu-Fen Zhao 3<br />

1<br />

College of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang , 110016 , P. R. China<br />

2<br />

The Key Laboratory for Chemical Biology of Guangdong Province, Shenzhen Graduate School of Tsinghua<br />

University , Shenzhen , 518055 , P. R. China<br />

3<br />

The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry Xiamen University,<br />

Xiamen , 361005, P. R. China<br />

4<br />

Shanghai GenePharma Co., Ltd. Suite 602,1011 Halei Road, Z.-J. High Tech Park, Shanghai 201203, P.R. China<br />

With the development of the antisense, ribozyme, and RNAi technology, mRNA gradually<br />

becomes a new drug target1, 2. However, application of natural oligonucleotides in vivo and their<br />

possibility to be drugs still face several problems that have not yet been comprehensively settled.<br />

For example, oligonucleotide delivery, stability in vivo, pharmacokinetics, and specificity will be<br />

the major research fields in the future investigation. Chemically modified oligonucleotides are<br />

developed to overcome these problems and have improved properties over natural oligonucleotides.<br />

Several chemically modified oligonucleotides such as phosphorothioates, FANA, 2’-O-Me and<br />

2’-O-allyl (Fig. 1) have been widely applied in oligonucleotide-based technologies being developed<br />

as drug platforms including antisense, ribozyme, and RNAi3. We synthesized mopholino<br />

nucleotides with normal phosphate backbones (Fig. 2) by phosphoramdite methodology. They<br />

exhibit strong affinity with RNA oligonucleotide and high nuclease resistance which make them a<br />

candidate to bring new features in the oligonucleotide-based technologies.<br />

O<br />

O<br />

H<br />

H<br />

O<br />

P<br />

O<br />

O<br />

S<br />

H<br />

B<br />

H<br />

OH<br />

O<br />

O<br />

H<br />

H<br />

O<br />

P<br />

O<br />

O<br />

O<br />

F<br />

B<br />

H<br />

O<br />

O<br />

Fig. 1: Structure of phosphorothioates, FANA, 2’-O-Me and 2’-O-allyl. B= Uracil, Cytosine,<br />

Adenine, Guanine.<br />

O<br />

Fig. 2: Structure of mopholino nucleotides with normal phosphate backbones. B= Uracil, Cytosine,<br />

Adenine, Guanine and Thymine.<br />

References<br />

[1] Alan Dove, Nature Biotechnology 20, 121 (2002).<br />

[2] Simon W Jones et, al, Current Opinion in Pharmacology 4, 522 (2004).<br />

[3] Hong-Yan Zhang et, al, Current Topics in Medicinal Chemistry 6, 893 (2006).<br />

H<br />

307<br />

H<br />

O<br />

P<br />

O<br />

O<br />

O<br />

O<br />

O<br />

N<br />

H<br />

O<br />

P O<br />

O<br />

B<br />

H<br />

B<br />

O<br />

O<br />

H<br />

H<br />

O<br />

P<br />

O<br />

O<br />

O<br />

H<br />

B<br />

H<br />

O


P-152<br />

ELECTROSPRAY IONIZATION MASS SPECTRA OF AMINO ACID METHYL ESTER<br />

5'-PHOSPHORAMIDATES OF 2', 3'-ISOPROPYLIDENEURIDINE<br />

Chen Wei-Zhu 1,2 , Gao Yu-Xing 2 2 *<br />

, Zhao Yu-Fen<br />

1 The Third Institute of Oceanography of The State Oceanic Administration, Xiamen 361005, P. R. China<br />

2 The Key Laboratory for Chemical Biology of Fujian Province,Department of Chemistry, College of Chemistry and<br />

Chemical Engineering, Xiamen 361005, P. R. China<br />

Recently, O-nucleoside N-phosphoryl amino acids are continuing to be an important class of<br />

rationally designed antiviral nucleoside prodrugs1 and the model molecules in the study of the<br />

prebiotic biosynthesis of proteins.2 In the present work, we used Atherton-Todd3 reaction to<br />

synthesize a series of amino acid methyl ester 5’-phosphoamidates of protected uridine. These<br />

compounds were determined by positive-ion mode electrospray ionization mass spectrometry<br />

(ESIMS) in conjunction with multistage tandem mass spectrometry. The fragmentation pathways<br />

were investigated, and most of the fragment ions contained the phosphoryl group. It was interesting<br />

that the methoxy group of amino acid methyl ester could migrate from the carbonyl group to the<br />

phosphoryl group only for the sodium ion adduct, but not for the protonated molecule. The possible<br />

formation mechanism was summarized in Scheme 1. Sodium ion could coordinate with phosphoryl<br />

oxygen and carbonyl oxygen simultaneously to form a seven-membered ring. And the oxygen of<br />

methoxy group might attack the phosphorus to form a five-membered pentacoordinated phosphorus<br />

intermediate. Then, with the migration of methoxy group from carbonyl group to phosphoryl group,<br />

the five-membered ring might break down by elimination of a neutral molecule CO. Finally, the<br />

pentacoordinated phosphorus intermediate might lose one 2', 3'-isopropylideneuridine to produce<br />

the ion at m/z 252. These results strongly suggested that metal ion, such as sodium ion, might play<br />

an important role in the rearrangement.<br />

O<br />

H H<br />

H3C O C C N<br />

CH2 OH<br />

HO P O<br />

H3CO H<br />

O C C NH<br />

CH2 OH<br />

ONa<br />

HO P O<br />

H 3CO<br />

ONa<br />

NH<br />

CH<br />

CH 2<br />

OH<br />

-CO<br />

ONa<br />

P O<br />

OH<br />

m/z 564<br />

O<br />

O<br />

O<br />

O N<br />

O<br />

O N<br />

O N<br />

O<br />

NH<br />

O<br />

O<br />

O<br />

O<br />

NH<br />

NH<br />

O<br />

O<br />

O<br />

308<br />

Na<br />

O<br />

O<br />

P O<br />

C OCH3OH CH NH<br />

CH2 OH<br />

ONa<br />

H<br />

HO P O<br />

3C<br />

O<br />

H<br />

O C C NH<br />

CH2 -2', 3'-isopropylideneuridine<br />

OH<br />

O<br />

ONa<br />

O P OCH3 NH<br />

CH<br />

CH 2<br />

OH<br />

O<br />

O<br />

O N<br />

O<br />

O N<br />

m/z 252<br />

O<br />

O<br />

NH<br />

NH<br />

O<br />

O<br />

ONa<br />

HO P OCH3 Scheme 1 A possible formation mechanism of rearrangement ion at m/z 252<br />

Refrences<br />

[1] McIntee E. J.; Remmel R. P.; Schinazi R. F.; Abraham T. W.; Wagner C. R. Probing the Mechanism of Action and Decomposition<br />

of Amino Acid Phosphomonoester Amidates of Antiviral Nucleoside Prodrugs. J. Med. Chem. 1997, 40: 3323-3331<br />

[2] Fu H., Li Z. L., Zhao Y. F., Tu G. Z. Oligomerization of N,O-Bis(trimethylsilyl)-R-amino Acids into Peptides<br />

Mediated by o-Phenylene Phosphorochloridate. J. Am. Chem. Soc. 1999,121: 291-295<br />

[3] Atherton F. R., Openshaw H. T., Todd A. R. J. Chem. Soc. 1945, 660-663<br />

N<br />

CH<br />

CH 2<br />

OH


P-153<br />

SYNTHESIS AND BIOACTIVITY OF SIX-RING NUCLEOSIDE MODIFIED siRNA<br />

Nan Zhang 1, 2 , Yue Wang 1, 2 , Pu-Qin Cai 2,3 , Pei-Zhuo Zhang 4 , Yu-Yang Jiang 1, 2 *, Yufen Zhao 1,5<br />

1<br />

Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of<br />

Chemistry Tsinghua University, Beijing, 10084, P. R. China<br />

2<br />

Key Laboratory for Chemical Biology of Guangdong Province, Shenzhen Graduate School of Tsinghua University,<br />

Shenzhen, 518055, P. R. China<br />

3<br />

College of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, 110016, P. R. China<br />

4 Shanghai GenePharma Co., Ltd. Suite 602,1011 Halei Road, Z.-J. High Tech Park, Shanghai 201203, P.R. China<br />

5<br />

Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry Xiamen University, Xiamen,<br />

361005, P. R. China<br />

Small interfering RNA (siRNA) molecules have drawn much attention since it can mediate target<br />

gene expression in a variety of mammalian cells 1 . SiRNA works by Watson-Crick base-pairing of<br />

an RNA guide sequence with target RNA followed by specific degradation of the target. There has<br />

been considerable interest in harnessing the power of siRNA to treat human diseases such as cancer,<br />

sepsis, and viral infections 2 .<br />

However, therapeutic application of siRNA will be dependent on improvements in siRNA<br />

stability, delivery, specificity and biological uptake. A number of chemically modified RNA have<br />

been test in siRNA landscape, such as 2’-O-ally, 2’-deoxy-fluoro, LNA, boranophosphate, and<br />

phosphorothioates 3 .<br />

As far as I know, our group first synthesized several six-ring modified siRNA by phosphoramdite<br />

methodology. They exhibit strong affinity with RNA and DNA and high nuclease resistance. The<br />

further research of its bioactivity is in process in our lab. It introduces a new category of molecules<br />

for potential use as RNAi-based therapeutics.<br />

B<br />

O<br />

O<br />

-O<br />

309<br />

N<br />

O<br />

P O<br />

O<br />

B =A,U,C,G,T<br />

References<br />

[1] Sayda M.Elbashir, et al, Nature, 2001,411,494<br />

[2] RCC Ryther, et al, Gene Therapy, 2005,12, 5<br />

[3] Barbara Nawrot, Current Topics in Medicinal Chemistry, 2006,6,913


P-156<br />

A NOVEL SYNTHESIS OF<br />

O-PHOSPHORYLATEDN-MENTHOXY-CARBONYL TYROSINE<br />

Wang Tongjian 1 , Cheng Fang 2 , Tang Guo 1 , Zhao Yufen 1<br />

1The Key Laboratory for Chemical Biology of Fujian Province and 2Key Laboratory of Analytical Sciences of Ministry<br />

of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P.R.China<br />

The phosphorylated tyrosine that consists in protein is a main existence that can respond to the<br />

stimulation from the environment, so it plays an important role in life process[1]. The previous<br />

methods to prepare the phosphorylated tyrosine which was consisted of two steps including oxidation<br />

following phosphite [2] were based on the phosphite amine. In the recent research, Atherton-Todd<br />

reaction has usually been used for the synthesis of O-phosphorylated N-Boc-tyrosine, but the method<br />

has its limitations owing to the strict anhydrous condition and the poisonous carbon tetrachloride [3].<br />

In this case, we took advantage of N,N’-Disuccinimidyl carbonate(DSC) to produce<br />

N-Menthoxycarbonyl tyrosine and luckily we found it has the antibacterial efficacy. The key reagent<br />

is trichloroisocyanuric acid which promotes the rapid conversion of dialkyl phosphites into their<br />

dialkyl chlorophosphates[4] .The advantageous features of this reaction are the mild condition and<br />

the simple operation. With the same method, we get a series of O-phosphorylated<br />

N-menthoxycarbonyl tyrosine in a good yield (50%-70%).<br />

O<br />

O<br />

P<br />

O<br />

H<br />

Cl<br />

O N O<br />

Cl<br />

N N<br />

O<br />

Cl<br />

CH3CN<br />

O<br />

HO<br />

O<br />

P<br />

O<br />

1a~1c 2a~2c 3a~3c<br />

a: diisopropyl phosphite ester (DIPPH)<br />

b: dimethyl phosphite ester (DMPH)<br />

c: diethyl phosphite ester (DEPH)<br />

Cl<br />

C<br />

H2<br />

References<br />

[1].Fahad A. A. , J inzi J. W. , Kit S. L. . Biopolymers(Pep tide Science) [J ], 1998, 47: 197—203<br />

[2].Kitas E. A. , Knorr R. , T rzecialA. et al. . Hel. Chim. Acta[J ], 1991, 74: 1 314—1 328<br />

[3].Zhao Gang, Li Yanmei, Luo Shizhong, Han Bo, Zhao Yufen. Chemical Journal of Chineseuniversities<br />

22(12),2034-2036<br />

[4].Acharya, J.; Gupta, A. K.; Shakya, P. D.; Kaushik, M. P. Tetrahedron Letters (2005), 46(32), 5293-5295.<br />

310<br />

NH<br />

CH<br />

O<br />

DBU<br />

C<br />

O<br />

O<br />

O<br />

O<br />

O<br />

P<br />

O<br />

O<br />

C<br />

H 2<br />

NH<br />

CH<br />

O<br />

C<br />

O<br />

O<br />

O


P-157<br />

INHIBITION OF POKEMON GENE EXPRESSION BY ANTISENSE<br />

OLIGONUCLEOTIDES<br />

Nan Zhang 1, 2 , Yue Wang 1, 2 , Zhen-Hua Xie 2 , Yu-Yang Jiang 1, 2 *, Yu-Fen Zhao<br />

1<br />

Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of<br />

Chemistry Tsinghua University, Beijing, 10084, P. R. China<br />

2<br />

Key Laboratory for Chemical Biology of Guangdong Province, Shenzhen Graduate School of Tsinghua University,<br />

Shenzhen, 518055, P. R. China<br />

3<br />

Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry Xiamen University, Xiamen,<br />

361005, P. R. China<br />

Pokemon is an important transcription factor, which regulates the important tumor suppressor ARF.<br />

Pokemon is overexpressed in multiple human cancers. Lack of Pokemon causes cellular senescence,<br />

apoptosis, and blockage of differentiation. We designed and synthesized four 18-mer<br />

phosphorothioate modified antisense oligonucleotides targeting the coding regions of Pokemon<br />

mRNA, and investigated the down-regulation of Pokemon expression by measurement of the<br />

fluorescence intensity of Pokemon-GFP fusion protein in COS-7 cell. Antisense oligonucleotide AS4,<br />

which targets nucleotides 1496-1513 of Pokemon mRNA, was proven as the most potent compound.<br />

As4 down-regulated the expression of Pokemon-GFP fusion protein to 22% at 40nm for 24hr.<br />

Reference<br />

[1] Barna M, Hawe N, Niswander L, Pandolfi PP. Nat Genet, 2000,25,166.<br />

[2] He X, Dave VP, Zhang Y, et al. Nature, 2005, 433, 826.<br />

[3] Costoya JA, Hobbs RM, Barna M, et al. Nat Genet, 2004, 36, 653.<br />

[4] Ye BH, Cattoretti G, Shen Q, et al. Nat Genet,1997,16, 161.<br />

[5] Koken MH, Reid A, Quignon F, et al. Proc Natl Acad Sci U S A,1997,94,10255.<br />

[6] Chen WY, Zeng X, Carter MG, et al. Nat Genet,2003,33,197.<br />

[7] Maeda T, Hobbs RM, Merghoub T, et al. Nature, 2005, 433.<br />

[8] Maeda T, Hobbs RM, Pandolfi PP. Cancer Res, 2005, 65, 8575.<br />

[9] Dove A. Nature Biotechnolog, 2002, 20, 121.<br />

[10] Wang H, Parasad G, Buolamwini, et al. Curr Cancer Drug Targets, 2001,1,177<br />

[11] Agrawal S, Kandimalla ER. Curr Cancer Drug Targets, 2001, 1, 197<br />

[12] Opalinska JB, Gewirtz AM, Nat Rev Drug Discovery, 2002, 1, 503<br />

[13] Hoen PAC, Rosema BS, Commandeur JNM, et al. Eur J Biochem,2002, 269, 2574<br />

311<br />

1, 3


P-158<br />

ANTISENSE THERAPY TARGETING POKEMON ONCOGENE IN MCF-7 CELL<br />

Nan Zhang 1, 2 , Wen-Peng Li 2 , Zhen-Hua Xie 2 , Yu-Yang Jiang 1, 2 *, Yu-Fen Zhao<br />

1<br />

Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of<br />

Chemistry Tsinghua University, Beijing, 10084, P. R. China<br />

2<br />

Key Laboratory for Chemical Biology of Guangdong Province, Shenzhen Graduate School of Tsinghua University,<br />

Shenzhen, 518055, P. R. China<br />

3<br />

Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry Xiamen University, Xiamen,<br />

361005, P. R. China<br />

This study was undertaken to investigate the role of Pokemon oncogene in MCF-7 (human<br />

adenocarcinoma cancer) cells growth and the potential of Pokemon as a target for cancer therapy. An<br />

18-mer antisense oligonucleotide AS4 (TTCAGGTCGTAGTTGTGG, targeting 1496-1513 site of<br />

Pokemon mRNA) was proven as a potent inhibitor of Pokemon expression in our previous work. In<br />

this study, we transfected AS4 to MCF-7 cells and confirmed the Pokemon mRNA and protein level<br />

by RT – PCR and Western Blot. Furthermore, the cell cycle was analyzed by flow cytometer. G2/ M<br />

arrest was observed when the cells were treated with antisense oligonucleotide at 100nM for 48 h.<br />

We also found the P53 protein upregulation due to Pokemon inhibition. Our result suggests that<br />

Pokemon inhibitor may be a novel approaches to human cancer therapy.<br />

References<br />

[1] Dove A. Nature Biotechnolog, 2002, 20, 121.<br />

[2] Wang H, Parasad G, Buolamwini, et al. Curr Cancer Drug Targets, 2001,1,177<br />

[3] Agrawal S, Kandimalla ER. Curr Cancer Drug Targets, 2001, 1, 197<br />

[4] Opalinska JB, Gewirtz AM, Nat Rev Drug Discovery, 2002, 1, 503<br />

[5] Barna M, Hawe N, Niswander L, Pandolfi PP. Nat Genet, 2000,25,166.<br />

[6] He X, Dave VP, Zhang Y, et al. Nature, 2005, 433, 826.<br />

[7] Costoya JA, Hobbs RM, Barna M, et al. Nat Genet, 2004, 36, 653.<br />

[8] Ye BH, Cattoretti G, Shen Q, et al. Nat Genet,1997,16, 161.<br />

[9] Koken MH, Reid A, Quignon F, et al. Proc Natl Acad Sci U S A,1997,94,10255.<br />

[10] Chen WY, Zeng X, Carter MG, et al. Nat Genet,2003,33,197.<br />

[11] Maeda T, Hobbs RM, Merghoub T, et al. Nature, 2005, 433.<br />

[12] Maeda T, Hobbs RM, Pandolfi PP. Cancer Res, 2005, 65, 8575.<br />

312<br />

1, 3


P-162<br />

THE POSITIVE AND NEGATIVE ELECTROSPRAY IONIZATION (ESI) MASS<br />

SPECTROMETRY OF 1-(N-ETHOXYCARBONYLAMINO)<br />

ARYLMETHYLPHOSPHONIC MONOESTERS<br />

Yuan Ma*, Wei Liu, Yufen Zhao<br />

Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of<br />

Chemistry, Tsinghua University, Beijing 100084, China<br />

1-Aminoalkylphosphonic acids are not only important phosphorus analogues of amino acids, but<br />

also one type of naturally occurring amino acids. The positive and negative ion mass spectrometric<br />

fragmentations of 1-(N-ethoxycarbonylamino)arylmethylphosphonic monoesters have been<br />

investigated under electrospray ionization conditions. In the positive ion mass spectrometry, the<br />

protonated title compounds predominantly eliminate a phosphite monoester via a four-membered<br />

ring hydrogen rearrangement to yield protonated N-ethoxycarbonyl arylmethylimines as key<br />

intermediate fragment ions, which could further undergo four-, six-, or eight-membered ring<br />

rearrangements to produce mainly N-substituted/unsubstituted arylmethylimine ions. It is interesting<br />

to note that the protonation of 1-(N-ethoxycarbonylamino)arylmethylphosphonicmonoesters<br />

occurred in their arene rings. On the other hand, in the negative ion ESI mass spectrometry, the<br />

deprotonated title compounds favored to initially form phosphonic-carboxylic mixed anhydrides as<br />

the key intermediate fragment ions by loss of a molecular of ethanol, and they further eliminated CO<br />

or CO2, respectively, to give rise to deprontonated three- and four-membered nitrogen and<br />

phosphorus containing heterocyclic fragment ions.<br />

Et<br />

O<br />

N P OR<br />

ArH<br />

O<br />

OH<br />

[M+H] +<br />

+<br />

O<br />

H<br />

O<br />

OR<br />

- HP<br />

OH<br />

313<br />

Et<br />

O N<br />

+<br />

ArH<br />

Scheme 1. The initial positive-ion fragmentation pathway of the title compounds.<br />

Et O<br />

H<br />

O<br />

P<br />

OR<br />

O<br />

O - Ar<br />

N<br />

[M-H] -<br />

-EtOH<br />

O<br />

O<br />

N -<br />

Ar<br />

O<br />

P<br />

OR<br />

O


P-197<br />

THE SYNTHESIS AND BIOLOGICAL EVALUATION OF BENZAMIDE RIBOSIDE AND<br />

ITS PHOSPHORDIAMIDATE PRODRUG<br />

Jianning Zhou 1,2 , Nan Zhang 1 , Chunyan Tan 1 , Jian Fan 1 , Chun Guo 2 & Yuyang Jiang 1*<br />

1.The Key Laboratory of Chemical Biology, Guangdong Province, The Graduate School at Shenzhen, Tsinghua<br />

University, Shenzhen 518055, China<br />

2. School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China.<br />

Abstract: Benzamide riboside [BR, (1-β-D-ribofuranosyl) benzene-3-carboxamide], a novel<br />

C-glycoside analogue of nicotinamide riboside, has been studied because of its excellent cytotoxic<br />

activity. BR is metabolized intracellularly in malignant cells to its active metabolite benzamide<br />

adenine dinucleotide (BAD), which inhibits the key enzyme of guanylate biosynthesis inosine<br />

5 ` -monophosphate dehydrogenase (IMPDH), resulting in the inhibition of cell proliferation.<br />

In order to overcome the problem of drug resistance and the first phosphorylation, we designed<br />

and synthesized the benzylphosphordiamidate (1a) as the prodrug to deliver phosphorylated<br />

benzamide riboside analogs into cells. However, the revaluation shows that 1a has lower<br />

biological activity (IC50>200μM) compared to BR, which might be explained by the fact that 1a<br />

could only serve as the BR depot form and could not be metabolized to the phosporylatd benzamide<br />

riboside. The synthetic route of 1a is as follows:<br />

HO<br />

HO<br />

O<br />

HO<br />

OH<br />

D-Ribose<br />

Br<br />

O<br />

HO OH<br />

1<br />

3<br />

COOH<br />

O<br />

OH<br />

NH 2<br />

OBn<br />

BnO<br />

Br<br />

4<br />

HO<br />

2<br />

O<br />

N<br />

OBn<br />

O<br />

O<br />

b O<br />

c NHBn<br />

O<br />

d<br />

O O<br />

6<br />

O<br />

a<br />

NH 2<br />

BnHN<br />

OBn<br />

O<br />

P<br />

O<br />

BnO OBn<br />

5<br />

O<br />

314<br />

OH<br />

O O<br />

7<br />

N<br />

O<br />

O<br />

HO<br />

NH 2<br />

BnHN<br />

O<br />

HO OH<br />

1<br />

O<br />

P<br />

O<br />

NHBn<br />

O<br />

O<br />

HO OH<br />

Reagents and Conditions: a) nBuLi, THF, 5, -85 ℃ 3h;<br />

b) (MeO)2CMe2, acetone, pTSA, rt; c) POCl3, Py, 0℃<br />

8h then BnNH2, Et3N, rt, 2h; d) HCOOH/H2O, THF, 0℃.<br />

Acknowledgement: We gratefully acknowledge the National Science Foundation of China<br />

(20472043, 20572060, 20672068), the Project of Science and Technology of Guangdong Province<br />

( 2005A11601008) for support of this work.<br />

1a<br />

NH 2<br />

O<br />

NH 2


Symposium 7<br />

Phosphorus Chemistry in Agriculture, Industry and<br />

Materials Science


KL-12<br />

OVERVIEW ON OP METABOLISM CHEMISTRY AND ITS RELATIONSHIP TO<br />

BIOLOGICAL AND TOXIC ACTIONS<br />

Philip W. Lee<br />

DuPont Agricultural Products, Experimental Station E402, Wilmington, DE 19880-0402, USA<br />

Email: Philip.W.Lee@usa.dupont.com<br />

Organophosphorus compound (OP) is a large diverse class of molecules with broad range of<br />

chemical reactivity and biological properties. In addition to human drug activity, OPs are also<br />

important agrochemicals and industrial chemicals such as flame retardants, plasticizers, and<br />

catalysts. Organophosphates insecticides (such as dichlorvos, mevinophos) and chemical warfare<br />

agents such as diisopropyl phosphorofluoridate (DFP) are potent acetylcholinesterase (AChE)<br />

inhibitors. On the other hand, phosphorothioate esters (P=S) such as parathion, chlorpyrifos are<br />

poor AChE inhibitors, but require metabolic activation to the corresponding oxon (P=O) for<br />

insecticidal actions. The mode of action of glyphosate, the best known organophosphorus<br />

herbicide, is the binding to 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS), thereby<br />

inhibiting plant amino acid biosynthesis. Detoxification via N-aceteylation reaction is a proposed<br />

mechanism to develop glyphosate resist crops. The mode of actions of organophosphate fungicides<br />

compounds are not well defined, but apparently affect cell wall biosynthesis.<br />

The metabolic oxidative desulfuration of phosphorothioate to the corresponding phosphate is one<br />

of the most extensively studied metabolic reactions. This metabolic activation reaction, observed in<br />

both chemical and biological systems, is catalyzed by cytochrome P450 enzyme, via the formation of<br />

activated [P-S-O] intermediate. Other metabolic detoxification reactions involve chemical and<br />

enzymatic hydrolysis of the phosphate esters. Inhibition of esterase enzymes have been identified as<br />

the mode of action of delay neurotoxicity.<br />

This presentation provides an overview of the chemical reactivity, metabolic pathway and mode<br />

of toxic action of several selected OP compounds, and how these metabolic reactions affect the<br />

biological activity and toxicity of this important class of chemicals.<br />

315


IL-33<br />

FOOD SAFETY: MONITORING OF ORGANOPHOSPHATE PESTICIDE RESIDUES IN<br />

CROPS AND FOOD<br />

Canping Pan<br />

College of Applied Chemistry, China Agricultural University, Beijing 100094, P.R.China<br />

Email: canpingp@cau.edu.cn<br />

There are more than 40 major organophosphate (OP) pesticides used globally today, to control<br />

wide range of insect pest species in agriculture, homes, gardens, and in veterinary practice. OP<br />

insecticides exhibit potent acute and/or subchronic toxicity to mammals. Both OP and carbamates<br />

insecticides are potent acetylcholinesterase (AChE) inhibitors and they are the first priority group of<br />

pesticides reviewed under the US Food Quality Protection Act. US EPA had begun the risk<br />

management program with the OP insecticides since August 1996. The final draft report on the<br />

cumulative risk assessment of OP pesticides was issued in August 2006.<br />

OP pesticide residues in crops, food and food-by-products (residues exceed the Maximum<br />

Residue Levels MRL)is both a health and international trade issue. This is a difficult problem<br />

especially the use and MRL of some of the key OP products are either withdrew or revoked recently.<br />

This presentation provides an overview of the development of the OP residues analytical method at<br />

the China Agricultural University (CAU) to monitor OP residues in crops and food in China. New<br />

technologies, such as molecular imprinting (MIP) will be addressed in this presentation. Our<br />

standard method includes solid phase matrix dispersion or GPC cleanup methods. A standard<br />

protocol (NY/T 761), originally from US CDFA, was adopted. The current internationally accepted<br />

and widely used “QuEChERS method” was also successfully validated at CAU on GCMS.<br />

This presentation will discuss the residue analytical method design, GCMS and/or HPLC-MS<br />

method validation and the storage stability of selective OP residues in crops and processed<br />

commodities. Finally, the OP insecticides residues monitoring status in Chinese vegetables<br />

collected in the past several years will be addressed.<br />

316


IL-34<br />

THE ROLE OF PHOSPHORUS IN CROP PROTECTION: EXPERIMENTAL AND<br />

COMMERCIAL DISEASE AND WEED CONTROL AGENTS<br />

Roger G. Hall<br />

Syngenta Crop Protection, Switzerland<br />

Although the importance of Organophosphate insecticides is steadily declining, Phosphorus still<br />

plays an important role in Crop Protection. Glyphosate continues to dominate the herbicide market,<br />

due in most part to the recent introduction of glyphosate-tolerant crops. The herbicide<br />

Phosphinothricine, a smaller product in terms of sales, can also be used on crops engineered for<br />

tolerance. But, where are the new Crop Protection products containing phosphorus?<br />

Plants play a key role in the synthesis and production of important amino acids. Inhibitors of<br />

amino acid biosynthesis which incorporate phosphorus in the molecule, offer excellent opportunities<br />

to find new, selective weed control agents. For example, the phosphonic acids 1 are potent,<br />

nanomolar inhibitors of the enzyme Imidazole Glycerol Phosphate Dehydratase and display<br />

herbicidal activity. The phosphine oxide 2 has been reported to inhibit the enzyme Aceto Lactate<br />

Reducto Isomerase and shows weak herbicidal activity. The phosphonic acid 3 inhibits the enzyme<br />

Tryptophan Synthase and also shows herbicidal activity. We have also sought to prepare inhibitors of<br />

Glutamine Synthetase such as 4 with more potent herbicidal activity than Phosphinothricine. It thus<br />

appears that Phosphorus offers more opportunities to identify products for the control of weeds rather<br />

than diseases. This lecture will discuss some recent research in these areas, and attempt to answer the<br />

question raised above.<br />

H<br />

N<br />

N<br />

N<br />

OH<br />

R<br />

1<br />

R = CH2, O, NR 1 , S<br />

S<br />

OH<br />

3<br />

P(O)(OH) 2<br />

P(O)(OH) 2<br />

317<br />

H3C P<br />

O<br />

H3C HO P<br />

O<br />

HO<br />

OH<br />

2<br />

O<br />

4<br />

CO 2 H<br />

NH 2<br />

CO 2 H


IL-35<br />

THE USE OF OP AND DEVELOPMENT OF NEW ORGANOPHOSPHORUS<br />

AGROCHEMICALS IN CHINA<br />

Hong-wu He<br />

Key Laboratory of Pesticide and Chemical Biology, Ministry of Education; and College of Chemistry, Central China<br />

Normal University, Wuhan 430079, China<br />

Phosphorus-containing agrochemicals have made a major contribution to the advancement of<br />

agriculture in China, because of their high efficacy and low prices. Almost 70% of agrochemicals in<br />

China were organophosphorus compounds and 70% of phosphorus-containing agrochemicals were<br />

insecticides during 1990 to 2002. OP insecticides have great economic importance for Chinese<br />

Pesticide Industry, but the problem of them with toxicological problems or unacceptable residues in<br />

the edible agricultural product have become as reasons for withdrawals of some OP insecticides from<br />

the market of China. In order to meet the increasing China’s requirements on food quality/safety,<br />

environment safeguard, the amount of high-toxicity OP products was limited from 2002 as the result<br />

of policies from authorities in China. High-toxicity OP products are gradually being displaced by low<br />

–toxicity OP products or other new synthetic agrochemicals.<br />

China is emerging as the second largest country in pesticide production and usages. R&D for<br />

environment friendly agrochemicals are becoming more and more important in China.<br />

Agrochemical Research Center and innovation system were preliminarily established in China during<br />

1996-2000 under the financial support from state government. R&D for new agrochemical has made<br />

great progresses in recent years, 21 new agrochemicals as patent products have been developed and<br />

got temporary registration from ICAMA. Several low toxicity organophosphorus compounds<br />

including insecticide, herbicide, fungicide and anti-TMV agent are being developed in China.<br />

α-(Substituted phenoxyacetoxy ) alkylphosphonate II as a kind of potential agrochemicals was<br />

founded on the basis of the study of a series of α -oxophosphonic acid derivatives I in our Lab.<br />

α-(Substituted phenoxyacetoxy ) alkylphosphonates showed a broad structure –activity-range. They<br />

could exhibit much different biological activity such as plant growth regulating activity, insecticide<br />

activity, fungicidal activity and herbicidal activity by the chemical modification of substituents in<br />

parent compound. Such as some compounds II exhibited notable herbicidal activity[1,2]and were<br />

demonstrated as a effective inhibitor of pyruvate dehydrogenase complex from plant ( in vitro )*. In<br />

order to evaluate the commercial potential as herbicide, some compounds with low acute toxicity<br />

were evaluated in the field. Field tests showed that they exhibited a potent activity against<br />

broad-leaved weeds at the rate of 150-450g /ha in lawn, wheat and zeamx field.<br />

Acknowledgments<br />

Financial support by National Basic Research Program of China (2003CB114400) and NNSFof<br />

China ( 20372023)<br />

References<br />

[1] H.W.He and Z.J.Liu, Chinese Journal of Organic Chemistry, 2001, 21 (11), 87<br />

[2] H.W. He*, T. Wang and J. L. Yuan, Journal of Organometallic Chemistry, 690, 2005, 2608-2613<br />

318


IL-36<br />

CURRENT STATUS OF ORGANOPHOSPHORUS<br />

INSECTICIDE AND STEREOCHEMISTRY<br />

Mitsuru Sasaki<br />

Division of Bio-systems Chemistry, Graduate School of Science and Technology,Kobe University, Kobe, Hyogo<br />

657-8501, Japan . E-mail: msasaki@kobe-u.ac.jp<br />

Organophosphorus agrochemicals including organophosphorus insecticide are still useful tools for<br />

crop protection. For instance, organophosphorus insecticides have been widely used in terms of<br />

their cost/performance with broad insecticidal spectra.<br />

There are organophosphorus agrochemicals having chirality at the phosphorus or at the carbon<br />

center in the molecule. The importance of chirality in organophosphorus agrochemicals is well<br />

recognized in most aspects of their chemistry, biochemistry, biology and toxicology.<br />

Thus reviewing the synthesis, selective toxicity and stereoselectivity of organophosphorus<br />

agrochemicals not only organophosphorus insecticide but also organophosphorus fungicide or<br />

herbicide will be firstly done on the following topics; absolute configuration-insecticidal activity<br />

relationships of the enantiomers of organophosphorus insecticides, asymmetric rule on the AchE<br />

inhibition by organophosphorus insecticides, and biological activity of the optical isomers of some<br />

phosphoramidothioates and 1-hydroxyethylphosphinic acid.<br />

Then recent developments on the methodology for preparing optically active phosphorus<br />

compounds having biological activity will be discussed in terms of asymmetric synthesis of<br />

organophosphorus synthetic intermediates with asymmetric induction at phosphorus center in the<br />

molecule, conformational analysis of phosphorus-containing heterocycles, and stereochemical course<br />

in the conversion of 1-aminoalkylphosphonic acids to 1-hydroxyalkylphosphonic acids.<br />

319


IL-37<br />

GLOBAL USE OF ORGANOPHOSPHORUS PESTICIDES<br />

William H. Hendrix, III,<br />

Technical Expert, Dow AgroSciences, Indianapolis, IN USA<br />

Organophosphates (OP) are the most widely used class of insecticides in the world and have<br />

helped revolutionize insect control. Providing broad spectrum insect control they are used in the<br />

home, the garden, in agriculture, and in veterinary practice. Despite challenging regulatory pressure,<br />

they continue to see new uses and formulations that increase their efficacy, selectivity and safety.<br />

History<br />

First recognized in 1854, the insecticidal properties were not defined until Tetraethyl<br />

pyrophosphate (TEPP), which was developed in Germany during World War II as a by-product of<br />

nerve gas development. In the 1940’s, the first wave of commercially available OPs, including<br />

parathion, reached the market. In 1965, the world’s most widely used OP, chlorpyrifos, was<br />

introduced. Today, we continue to see new uses and formulations being developed in all major<br />

markets.<br />

Distribution<br />

OPs are manufactured by most multinational companies and many regional generic manufacturers.<br />

There are roughly 100 OPs registered for use around the world and, in general, they are used in every<br />

country. It is important to remember that all OPs are not alike. There is considerable variation<br />

especially in toxicity classifications. Although some countries are phasing out or reducing most OP<br />

use, many other countries, such as China, are moving to phase out only the more toxic (Tox Class 1)<br />

molecules. External influencers impacting the sale and distribution of OPs include government<br />

regulators, food chain, and health/environmental non-governmental organizations.<br />

Major Markets<br />

OP molecules are used to protect man, his crops, and his home in a variety of ways. Their<br />

formulation flexibility and broad spectrum control have made them popular choices for a variety of<br />

uses. For example, OPs have been used for vector control as a fog, as a wall treatment or<br />

incorporated into the plastic used for bed netting in addition to their more traditional uses in<br />

agriculture. The major markets will be examined by country and by use pattern contrasting changes<br />

over time.<br />

New Developments<br />

As farming continues to adapt to provide more sustainable options, so have the OPs. Because of<br />

increasing concerns over residues, application timing has been scrutinized to make sprays as dormant<br />

or early season applications. New formulations and delivery options have been developed to increase<br />

handler safety or to mitigate environmental concerns. Microencapsulated formulations, for example,<br />

have increased safety profiles, reduced odor and dust, all while providing enhanced control.<br />

Because of their broad-spectrum control, formulation and application flexibility, OPs will continue to<br />

have an important insect management tool for the foreseeable future.<br />

320


O-85<br />

“GREEN” WAYS OF PHOSPHORUS COMPOUNDS PREPARATION<br />

Budnikova Yu.H. a* , Krasnov S.A., Graznova T.V., Tomilov A.P. b , Turigin V.V. b , Magdeev I.M.. a , Sinyashin O.G. a<br />

a Institute of Organic and Physical Chemistry of Russian Academy of Sciences, Kazan, Russia<br />

b GOSNIIOHT, Moscow, Russia. E-mail: yulia@iopc.knc.ru<br />

The existing industrial technology of synthesis of organophosphorous compounds is obsolete, as it<br />

is based on the use of chlorine and chloride of phosphorus thus causing serious environmental<br />

problems and main expenses of manufacture. Electrolysis presents a promising technology for<br />

chemical conversions under ambient conditions without the use of either toxic or hazardous reagents;<br />

it can minimise both the number of chemicals employed and the number of byproduct streams. The<br />

new general electrochemical one-phase way was developed for the of phosphorus compounds<br />

preparation, such as tertiary and primary phosphines, trialkyl phosphates, including trioctylphosphate,<br />

phosphorous and hypophosphorous acid, etc. Scientific foundations for new electrochemical<br />

technologies with obtaining pilot lots of substances and materials from white phosphorus were<br />

developed.<br />

C athode A node<br />

R O -<br />

P 4<br />

+ 2 e -2 e<br />

P 4<br />

R'<br />

+ n e<br />

Pb-cathode<br />

in situ<br />

R O H<br />

(H 2 O )<br />

(R O ) 3 P O<br />

[(i-R O ) 2 P ( O ) ] 2 O<br />

H 3 P O 3<br />

RPH 2<br />

CH 3 COOK/CH 3 COOH<br />

+ n e<br />

Pb-cathode<br />

321<br />

[P H 3 ]<br />

I -<br />

I +<br />

R'<br />

DMSO/KOH<br />

90% or<br />

80% or<br />

80%<br />

R 3 P<br />

M n+ L + ne M 0 L L = bipy, solvent<br />

M 0 L + P 4 product [M-P]<br />

Cathode<br />

+2e<br />

Zn0<br />

PhX<br />

Zn2+<br />

PhZnX<br />

P 4<br />

Zn2+<br />

Ph3P (80%)<br />

Anode-Zn<br />

-2e


Construction of the integrated laboratory electrolyzer of filter-press type<br />

Acknowledgments: RFBR (04-03-32830, 05-03-08039 ofi-p), INTAS.<br />

Reference<br />

[1] Budnikova Yu.H., et all. J.Organomet.Chem., 690, 2416-2425, 2005<br />

[2] Patents for inventions RU №№ 2199545, 2221805<br />

322


O-86<br />

PHOSPHATE - AN IMPORTANT ELEMENT IN THE AGRICULTURAL AND<br />

ENVIRONMENTAL SPHERE<br />

Dirk Freese<br />

Brandenburg University of Technology Cottbus P.O. Box 101344, D-03013 Cottbus, Germany E-mail:<br />

freese@tu-cottbus.de<br />

The Phosphate Cycle Phosphate is indispensable for all forms of life because of its genetic role in<br />

ribonucleic acid and function in energy transfers via adenosine triphosphate. In natural ecosystems<br />

P is usually the life-limiting element due to its low availability. Of the Phosphate in the<br />

soil-plant-animal system, commonly over 90% is in the soil and less than 10% enters the<br />

plant-animal life cycle. Phosphate taken up by plant roots is either in the H2PO4 - or HPO4 2- form.<br />

The amount of each form present depends on the soil solution pH. At pH 7.22 there are equal<br />

amounts of these two forms. Below this pH, H2PO4 - is the main form. Soluble P fertilisers applied<br />

to the soil are very rapidly changed to less-soluble compounds that, with increasing time, become<br />

less and less available to plants.<br />

Phosphate as an essential element of life is involved in versatile processes of terrestrial and<br />

aquatic environments. Considering the use of P in agriculture its application as fertilizer to arable<br />

lands often improves crop production. But the extent of P fertilisation varies considerably between<br />

developing countries and industrial nations. In general, P deficiency in agriculture is typical of the<br />

first group, whereas high application rates of P fertilizer in the latter one have induced some<br />

environmental issues. In most of sub-Saharan Africa, where per capita food production as been<br />

declining in recent years, fertilizer additions of this element for food crops are fraction of the rate of<br />

removal of phosphate in the harvested crops. The soils have been mined of phosphate for years,<br />

with the result that in many areas lack of this element is the first limiting factor in food-crop<br />

production. On the other side the continued application of P fertilizer can produce detrimental<br />

effects in both the terrestrial and aquatic environments. But in any discussion of the impact of soil<br />

and fertilizer Phosphate on the environment, the detrimental effects must be considered along with<br />

the benefits<br />

In modern agricultural economies there are two aspects that should be taken into account: saving<br />

utilisation of the limited resources of rock phosphates and fertilisation practices have to be geared to<br />

both the optimal plant nutrition and a sustainable land use as an important part of environmental<br />

protection policies.<br />

Forms of Phosphate in soil<br />

Inorganic and organic P fertilisation over the last decades lead to a considerable P accumulation<br />

in soils. The total P content in soils is in the range 100 to 3000 mg/kg almost entirely as<br />

orthophosphate. The proportion of P in solution is only


Fate of Phosphate to soils: Sorption<br />

The phosphate sorption process in soils can be subdivided into three categories: adsorption as the<br />

binding of P on the surfaces of solid soil constituents, diffusion of P into solid soil constituents and<br />

precipitation as the forming of a P-rich solid phase. In the literature the term sorption is used instead<br />

of adsorption because it covers the fast surface reaction of adsorption and the long term reaction.<br />

The kinetics of P sorption has received considerable attention over the past years. The initial fast P<br />

sorption kinetics is presumably due to reaction with the surface sites of metal (hydr)oxide particles<br />

that are exposed to the solution phase. The slow reaction may be due to a slow diffusion into<br />

aggregates or due to the slow formation of phosphate containing mineral phases. The reversibility<br />

of P bound to soil is of interest with respect to both bio-availability and the risk of pollution of<br />

surface waters as a result of P run-off rather then translocation of P to deeper soil layers.Predicting<br />

the availability of P in soils: Desorption<br />

The assessment of phosphate bioavailability in soils and sediments is of interest in both<br />

agricultural and environmental systems. In agricultural soils, there is a need to predict the quantity<br />

of P that is available for plant growth, as opposed to the total amount of P in soil.<br />

In terms of biological availability, soil P is commonly divided into the following forms: i)<br />

directly soluble P (labile P), ii) reversibly adsorbed P and iii) strongly bound ("irreversibly fixed") P.<br />

In order to characterise P forms in soils and their bioavailability, a wide variety of methods have<br />

been proposed during the last few decades and the discussion about is still going on.<br />

Therefore some new methods will be presented especially designed to obtain a proper<br />

understanding of long-term soil P desorption kinetics. These approaches are suitable to discriminate<br />

between fast and slow pools of P release in soils.<br />

324


O-88<br />

PHOSPHATE REMOVAL AND RECOVERY WITH CALCINED LAYERED DOUBLE<br />

HYDROXIDES AS AN ADSORBENT<br />

Liang Lü a, b* , Zhaoliang Zhou a , Jing He b , Yulin Wang a , Guoqiang Wu a<br />

a<br />

West Branch of Zhejiang University of Technology, Zhejiang 324000, China<br />

b<br />

State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029,<br />

China. E-mail: lianglv_qzxy@126.com; Fax: +86 570 8026549; Tel: +86 570 8026668<br />

Organic pollution in closed water bodies such as bays and lakes has been increasing by<br />

eutrophication, and removal of nutrient salts from the receiving water is an important consideration<br />

to control eutrophication. A major source of nutrient salts is domestic wastewater. A large amount of<br />

used phosphate finally reaches water environment as diluted waste, which often leads to pollution<br />

of the water environment. Phosphate is recognized as being one of the resources that will be lost in<br />

near future. It is of value to collect the finally disposed phosphates from effluents and drain water<br />

before further dispersion and dilution of them in the water environment. An adsorption process has<br />

been applied widely to treatment containment water, because the process has some advantages, such<br />

as less production of sludge and easy operation. A variety of adsorbents have been developed for<br />

phosphate removal, such as aluminum oxide, iron oxide, zirconium oxide, basic yttrium carbonate,<br />

and fly ash.<br />

Layered double hydroxides (LDHs), are a class of synthetic anionic clays whose structure can be<br />

described as containing brucite-like layers in which some of the divalent cations have been replaced<br />

by trivalent ions giving positively-charged sheets. This charge is balanced by intercalation of anions<br />

in the hydrated interlayer regions. The general formula is [M 2+1-x M 3+x (OH) 2 ] x+ (An - ) x /n·mH2O,<br />

where M 2+ and M 3+ are metal cations for example Mg 2+ and Al 3+ , that occupy octahedral sites in the<br />

hydroxide layers, An- is an exchangeable anion, and x is the ratio M 3+ /(M 2++ M 3+ ) and the layer<br />

charge will depend on the M 2+ /M 3+ ratio. The sorption of anions from aqueous solutions by<br />

structural reconstruction of calcined LDHs (denoted CLDH) is based on a very interesting property<br />

of these materials, the so-called memory effect. In our previous work, it was also indicated that the<br />

calcined LDH can effectively removal toxic anions (such as fluoride, chloride, bromide, and<br />

perchlorate) from water.<br />

In this work, the adsorption properties of CLDH for phosphate and the method of regeneration of<br />

this material were examined. The influences of CLDH structures, adsorbent dose, initial fluoride<br />

concentration, temperature and co-existing anions on the removal of fluoride have been investigated.<br />

It has been found that the LDHs with Mg/Al molar ratio of 2 represented the highest capacity to<br />

remove phosphate ion from aqueous solution at pH 6.0. Phosphate adsorbed on the CLDH was<br />

effectively desorbed at NaCl solution and the CLDH were reconstruction to LDH at the same time.<br />

The regenerated LDH could be calcined and reused repeatedly for the phosphate removal.<br />

Phosphate in the exhausted desorption solution was recovered as calcium phosphate by precipitation<br />

with Ca 2+ . The results suggest the possibility of an effective system for phosphate removal and<br />

recovery, which includes the following processes: adsorption, desorption, recovery of phosphate,<br />

and regeneration of the CLDH.<br />

325


O-89<br />

DEVELOPMENT, SCALEUP AND COMMERCIALISATION OF CATALYST LIGNDS<br />

Ranbir Padda and Gordon Docherty<br />

Rhodia UK Limited, P.O. Box 80, Trinity Street,<br />

Oldbury, West Midlands, B694LN, United Kingdom.<br />

Phone, +44-(0)-121-541-3278; Fax, +44-(0)-121-541-3346.<br />

E-mail:ranbir.padda@eu.rhodia.com<br />

Catalyst ligands are continually being developed by the academic community and industry with<br />

ever increasing turnover numbers, higher enantioselectivities etc. The types of catalysts and their<br />

scope of application are an immense area of activity e.g. child catalysts, achiral catalysts,<br />

phosphorus-based, nitrogen-based, phosphorus and nitrogen containing and so forth.<br />

Phosphine catalysts are a very important class of catalysts and we report on the development,<br />

scal-up and commercialisation of a number of ligands by Rhodia over the last 10 years. Recent<br />

examples include MeDuphos, patented by Dupont1, tetra-butyl diphosphiuo xylene patented by ICI2<br />

and BINAP (originally developed by Takasago). An in-depth discussion will highlight factors for<br />

consideration when developing and scaling-up synthesis of these ligands on an Industrial scale.<br />

References<br />

1. Patent US005008457 and US005329015A<br />

2. Patent WO 99/47528 and WO 99/47528<br />

3. Patent JP59020294(A2.<br />

326


O-90<br />

BLEACHING CHEMISTY OF TRIS(HYDROXYMETHYL)PHOSPHINE AND<br />

TETRAKIS(HYDROXYMETHYL)PHOSPHONIUM SULFATE<br />

Thomas Q. Hu a , Brian R. James b , Richard Chandra b , Eric Yu b and Dmitry Moiseev b<br />

a Pulp and Paper Research Institute of Canada, Vancouver, BC, Canada V6S 2L9<br />

b Department of Chemistry, Univ. of British Columbia, Vancouver, BC, Canada V6T 1Z1<br />

Research Institute of Canada, 3800 Wesbrook Mall,Vancouver, BC, Canada V6S 2L9.<br />

Phone: 1-604-222-3235; Fax.: 1-604-222-3207; E-mail: thu@paprican.ca<br />

Bleaching of lignin-rich wood pulps, an important industrial process for the production of<br />

low-cost papers, involves the non-selective, oxidative removal and/or reductive modification of<br />

lignin chromophores such as lignin coniferaldehyde and methoxy-pbenzoquinone. During our<br />

studies of a H2O-soluble, coppertris(hydroxymethyl)phosphine (THP) complex, Cu-P(CH2OH)3, as<br />

catalyst for the selective, H2-bleaching of such pulps, we discovered that the phosphine itself was an<br />

effective bleaching agent over an extremely wide range of process conditions. We also found that<br />

the commercially available tetrakis(hydroxymethyl)phosphonium sulfate (THPS),<br />

[P(CH2OH)4]2SO4, was equally effective. To support the commercialization of THPS as a bleaching<br />

agent for the paper industry, we have studied the aqueous reactions of THP with lignin model<br />

chromophores and isolated milled wood lignin. We have also determined the fate of phosphorus in<br />

the bleaching of a spruce thermomechanical pulp with THPS. This presentation will describe the<br />

results of these studies and discuss the potential application of THPS as a bleaching agent for the<br />

paper industry.<br />

327


O-91<br />

USE OF ION EXCHANGE COMPOSITES BASED OF TITANIUM AND ZIRCONIUM<br />

PHOSPHATES FOR CLEANING OF WATER SOLUTIONS<br />

Valery P. Nesterenko<br />

Belarusian National Technical University<br />

65, Nezavisimosty Avenue, 220027, Minsk, Republic of Belarus. E-mail: v.nesterenko@mail.ru<br />

In many cases creation of the effective systems for the cleaning of water solutions, polluted with<br />

radioactive elements and heavy metals, for example, realization of processes of extraction of<br />

radionuclides from wastes, deactivation and cleaning of wastewater, water preparation, is connected<br />

with necessity of use of sorption materials with given properties. Sorption processes have the<br />

advantages before other methods (for example, such as evaporation and precipitation), as they are<br />

more effective at large volumes of solution, do not bring in the difficulties, caused by corrosion of<br />

the equipment and in majority of cases provide additional clearing of corrosive impurity and<br />

products of division.<br />

The present work is dedicated to development of approaches for preparing, studying and using of<br />

new ion exchange composites. The thin layers of Ti(IV) and Zr(IV) phosphates have been<br />

synthesized by the method of ion molecular layering on the surfaces of carbon matrices.The<br />

obtained pellicular materials represent ionites similar to the Nucleosil ionites (Germany)due to a<br />

number of their properties. pH range of ionites functioning on a Ti(IV) phosphate base equals 1-8,<br />

on the base of Zr(IV) phosphate – 1-10. Physicochemical properties of the synthesized ion<br />

exchangers have been investigated by modern methods. Comparative characteristic of adsorption<br />

properties has been determined for a series of heavy metals. For example, statical exchange capacity<br />

of Titanium phosphate ionite (pH 2-7, 10-3 M solutions)of UO22+, Fe3+, Cd2+and MoO42- - ions<br />

is in the range of 0.1-1.8 mequ/g. It has been established that Zirconium phosphate ionites have<br />

1,5-2,0 times higher sorption activity asregards cations of d- and f-elements. Under the dynamical<br />

conditions, the processes of sorption and elution of the Pb2+ - ions have been studied on Zirconium<br />

phosphate ionite. Thus,the dynamical sorption capacity for 0,025 M Pb2+solution has been 130,5<br />

mg/g.<br />

The advantages of the synthesized phosphates ionites are the following: selectivity to the ions,<br />

forming heteropoly acids P(V), a greater (by one order) rate of establishing ion exchange<br />

equilibrium, saving of phosphates modifying agent. Realisation of ion exchange processes with<br />

application of the developing ionites is rather simple, which is notably important while extracting<br />

radionuclides. The synthesized ion exchangers are of represent practical interest because of their<br />

high radiation immunity and resistance to leaching. They may be employed with a view to ensure<br />

security of the environment as well and in case of their burial after utilization.<br />

It may be possible to use these ionites in processes of cleaning of sewage, extraction of value<br />

metals in hydrometallurgy as well as in other ion exchange technologies.<br />

References<br />

[1] V.P. Nesterenko. Invention Certificate No 623286 (1978).<br />

[2] V.P. Tolstoy. Uspekhi Khimii, 62, release 3, 260 (1993).<br />

[3] V.P. Nesterenko et al. Third International Technical-Practical Conference "Productive Reuse of Former Military Sites:<br />

Environmental and Economic Aspects of Demilitarization". Republic of Belarus, U.S. Department of Defense, Minsk<br />

(1996).<br />

328


O-92<br />

SELECTIVE CHROMIUM OLIGOMERISATION CATALYSTS WITH VARIOUS<br />

PHOSPHORUS LIGANDS<br />

Kevin Blann, John T. Dixon, Esna Killian, Hulisani Maumela, M., Chris Maumela, Ann E. McConnell, David H. Morgan,<br />

Mari_ Pretorius, Henriette de Bod, William Gabrielli, Alex Willemse, Pumza Zweni, Palesa Nongodlwana<br />

Sasol Technology (Pty) Ltd., R&D Division, 1 Klasie Havenga Road, Sasolburg 1947, South Africa<br />

kevin.blann@sasol.com<br />

Conventional ethylene oligomerisation reactions generally produce a mathematical distribution of<br />

LAO’s (linear alpha olefins). Since the market demand for each olefin cut differs, it remains an<br />

imperative in the co-monomer industry to develop new technologies for the selective<br />

oligomerisation of ethylene to valuable 1-alkenes such as 1-hexene[1] and 1- octene.[2] An added<br />

advantage of this approach is to have an oligomerisation system that is flexible in producing a<br />

specific 1-alkene as dictated by market demands.<br />

We report herein, a family of chromium-based catalyst systems utilising an array of phosphine<br />

ligands for the production of linear alpha olefins. Depending on the unique characteristics of the<br />

ligands utilised,[3][4] these catalysts can be tailored to provide unprecedented control over reaction<br />

selectivity. A detailed study on the requisite catalyst synthesis and modifications for these selectivity<br />

switches will be presented.<br />

1)Cr(Ⅲ)<br />

2)Ligand<br />

3)Activator<br />

Reference<br />

[1] Dixon, J.T., Green, M.J., Hess, F.M., Morgan, D.H. J. Organomet. Chem. 2004, 689, 3641.<br />

[2] Bollmann, A., Blann, K., Dixon, J. T., Hess, F. M., Killian, E., Maumela, H., McGuinness, D. S., Morgan, D. H.,<br />

Neveling, A., Otto, S., Overett, M. J., Slawin, A. M. Z., Wasserscheid, P., Kuhlmann, S. J. Am. Chem. Soc., 2004,<br />

126,14712.<br />

[3] Blann, K., Bollmann, A., Dixon, J.T., Hess, F.M., Killian, E., Maumela, H., Morgan, D.H., Neveling, A., Otto,<br />

S.,Overett, M.J. Chem Comm, 2005, 620.<br />

[4] Blann, K., Bollmann, A., Dixon, J.T., Hess, F.M., Killian, E., Maumela, H., Morgan, D.H., Neveling, A., Otto,<br />

S.,Overett, M.J. Chem Comm, 2005, 622.<br />

329<br />

and/or


O-94<br />

AN EFFICIENT CATALYTIC ASYMMETRIC SYNTHESIS AND BIOLOGICAL<br />

EVALUATION OF α-SUBSTITUTED AROYLOXYL PHOSPHONATES<br />

Hui Liu, Hongwu He and Wen-Jing Xiao*<br />

Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal<br />

University, 152 Luoyu Road, Wuhan, Hubei 430079, China. E-mail: wxiao@mail.ccnu.edu.cn<br />

We have synthesized a series of optically active phenoxylacetyloxyl and aroyloxyl phosphonates<br />

in high enantiomeric purity via catalytic asymmetric hydrogenation using Rh(I)/(S,S)-Me-DuPHOS<br />

as the catalytic system in methanol. Most of the target compounds including their precursors are<br />

novel. The methodology described herein presents one of the most straightforward synthetic way to<br />

get these compounds. The biological study shows that aroyloxyl phosphonates with R-configuration<br />

possess excellent herbicidal activities against dicotyledons and can be used as potential herbicides.<br />

O<br />

MeO P<br />

MeO<br />

O<br />

O<br />

O<br />

Cl<br />

Cl<br />

Rh(I)/(S,S)-Me-DuPHOS<br />

MeOH, S/C=100,<br />

H 2 (4 atm), 15 o C, 12 h<br />

330<br />

O<br />

MeO P<br />

MeO<br />

O<br />

References<br />

[1] Horiguchi, M.; Kandatsu, M. Nature 1959, 184, 901.<br />

[2] (a) Allen, M. C.; Fuhrer, W.; Tuck, B.; Wade, R.; Wood, J. M. J. Med. Chem. 1989, 32, 1652. (b) Smith, W. W.;<br />

Bartlett, P. A. J. Am. Chem. Soc. 1998, 120, 4610.<br />

[3] (a) He, H.-W.; Liu, Z.-J. Chin. J. Org. Chem. 2001, 21, 878. (b) Wang, T.; He, H.-W. Synth. Commun. 2004, 34, 1415.<br />

(c) He, H.-W.; Liu, X.; Hu, L.; Wang, S.; Liu, Z. Phosphorus Sulfur Silicon, 2002, 177, 1651. (d) He, H.-W.; Wang, J.;<br />

Liu, Z.-J. Chin. Chem. Lett. 1994, 5, 35. (e) He, H.-W.; Liu, X.; Hu, L. M.; Wang, S.; Liu, Z.-J. Phosphorus Sulfur Silicon<br />

1999, 144, 633.<br />

O<br />

O<br />

Cl<br />

Cl


O-95<br />

CONTROLLED SYNTHESIS OF ORGANIC-INORGANIC MATERIALS DERIVED FROM<br />

PHOSPHOROUS COMPOUNDS. VARIABLE POROSITY, PHOTOINDUCED<br />

ELECTRON-TRANSFER AND HYDROGEN STORAGE<br />

Ernesto Brunet, Olga Juanes, Juan Carlos<br />

Rodríguez-Ubis Department of Organic Chemistry, Faculty of Sciences Universidad Autónoma de Madrid,<br />

28049-Madrid, Spain. E-mail: ernesto.brunet@uam.es<br />

The preparation of solid structures is more and more in the side of designing and predictive<br />

principles conceptually similar to those used in solution chemistry. [1] Provocative comments as<br />

famous as that of Maddox [2] are being rebuked by the results of thoughtful experiments within the<br />

rapidly maturing field of crystal engineering. [3] For example, the use of layered inorganic salts in<br />

which organic structures can be orderly deposited either by weak interactions or covalent bonds is a<br />

widespread technique to prepare tailored solids with coveted properties. [4] Zirconium phosphate [5]<br />

(ZrP) is an excellent example. It constitutes a lamellar template which we profusely use [6] to obtain<br />

a number of microcrystalline materials with outstanding properties, ranging from molecular<br />

recognition, [7] luminescence, [8] postsynthesis variable porosity, [9] chiral memory, [10] hydrogen<br />

storage [11] and electron transfer in the solid state. [12] In this communication past and recent results of<br />

our investigations will be reported.<br />

References<br />

[1] A. Dey, M. T. Kirchner, V. R.Vangala, G. R. Desiraju, R. Mondal, J. A. K. Howard, J. Am. Chem.<br />

Soc. 2005, 127, 10545.<br />

[2] J. Maddox, Nature 1988, 335, 201<br />

[3] P. Erk, H. Hengelsberg, M. F. Haddow, R. van Gelder, Cryst. Eng. Comm. 2004, 6, 474.<br />

[4] D. B. Mitzi, Chem. Mater. 2001, 13, 3283.<br />

331


[5] A. Clearfield, Z. K. Wang, J. Chem. Soc.,Dalton Trans., 2002, 2937.<br />

[6] E. Brunet, M. J. de la Mata, H. M. H. Alhendawi, C. Cerro, M. Alonso, O. Juanes, J. C. Rodriguez-<br />

Ubis, Chem. Mater. 2005, 17, 1424.<br />

[7] E. Brunet, M. Huelva, R. Vázquez, O. Juanes, J.C. Rodríguez-Ubis, Chem. Eur. J. 1996, 12, 1578.<br />

[8] E. Brunet, M. J. de la Mata, O. Juanes, J. C. Rodriguez-Ubis, Chem. Mater. 2004, 16, 1517.<br />

[9] E. Brunet, M. J. de la Mata, O. Juanes, J. C. Rodriguez-Ubis, Angew. Chem., Int. Ed. 2004, 43, 619.<br />

[10] E. Brunet, Chirality 2002, 14, 135.<br />

[11] E. Brunet, H. M. H. Alhendawi, C. Cerro, M. J. de la Mata, O. Juanes, J. C. Rodríguez-Ubis,<br />

Angew. Chem. Int. Ed. 2006, 45, 6918.<br />

[12] E. Brunet, M. Alonso, M. J. de la Mata, S. Fernandez, O. Juanes, O. Chavanes, J. C. Rodriguez-<br />

Ubis, Chem. Mater. 2003, 15, 1232<br />

332


O-108<br />

STUDY ON THE PREPARATION OF WHEAT STARCH PHOSPHATE WITH LOW<br />

DEGREE OF SUBSTITUTION<br />

Liu Zhongdong*, Yang Yan<br />

Henan University of Technology, ZhengZhou South Songshan Road 140#, 450052<br />

liuzhongdong2345@163.com<br />

The starch phosphate is one kind of modified starch products, which is also a kind of anionic<br />

starch. Compared to the original ones, the aleurone of starch phosphate is not liable to the<br />

degradation of bacteria, having a higher viscosity, transparency and glueyness. In the food<br />

processing, the starch phosphate is used as the emulsifier, thickener or stabilizer. For its well<br />

stability of freezing-melting, the starch phosphate is especially suitable to be applied in the frozen<br />

foods. The starch phosphate is used for the paper sizing in the paper manufacturing industry and in<br />

the textile industry, it is used for the fabric sizing, dressing, printing and dying, both of which has a<br />

better result than the original starch. In addition, the starch phosphate can be used as adhesive,<br />

sedimentation agent, drug bulking agent and detergent etc.<br />

By means of proper experimental design, the method of response surface is applied to fit the<br />

function relationship between factors and response value using multiple quadratic regression<br />

equations and to find out the best technological parameter to solve the multivariate problem by the<br />

analysis of the regression equations. At the present time, it is one of the most effective methods in<br />

the synthetic technique of chemistry industry.<br />

In order to improve the performance of wheat starch and to broaden its using range, the response<br />

surface analysis is used in this article to optimize the response condition of the starch phosphate,<br />

using the sodium pyrophosphate as catalyst in esterification to prepare the wheat starch phosphate,<br />

to explore the influence of the pH, temperature, operation time and the amount of phosphate to the<br />

viscosity characteristic of the products. The best technological conditions are determined by means<br />

of response surface design, and the perfect result is obtained after the nature research of all the<br />

products. Compared to the original ones, the wheat starch phosphate products which are prepared<br />

through the response surface analysis has a satisfied value of the water retentiveness, the thickening<br />

strength and the freeze-thawing stability, while its gelatinization temperature has a great reduction.<br />

This research serves as reference to find out how to raise the economic benefits of wheat further<br />

processing and how to handle its bulk by-products especially for China, the most important wheat<br />

producing area.<br />

333


P-8<br />

STRUCTURAL CHARACTERISTIC AND ELECTRODE ACTIVITIES OF<br />

PHOSPHORUS INCORPORATED TETRAHEDRAL AMORPHOUS CARBON FILMS<br />

Aiping Liu, Jiaqi Zhu, Jiecai Han, Huaping Wu<br />

Center for Composite Materials, Harbin Institute of Technology, Harbin 150080, China<br />

The conductive phosphorus incorporated tetrahedral amorphous carbon (ta-C:P) films were<br />

deposited on conductive p type Si wafers by filtered cathodic vacuum arc (FCVA) technology with<br />

phosphine (PH3) as the dopant source. The structural characteristics were investigated by X-ray<br />

photoelectron spectroscopy (XPS), Raman spectroscopy and Fourier transform infrared (FTIR)<br />

spectroscopy. The electrochemical behaviors of ta-C:P films as electrodes were examined by cyclic<br />

voltammetry (CV) and differential pulse voltammetry (DPV). The results showed that the inorganic<br />

films represented amorphous structure with high tetrahedral bonds by Raman spectra. XPS data<br />

indicated that the fraction of sp2-hybridized carbon atoms increased with PH3 incorporated, which<br />

contributed to the improvement of conductivity. There was a possibility of carbon and phosphorus<br />

bonds inferred from the activated vibrational bands detected from the IR spectra. The ta-C:P films<br />

as electrodes exhibited excellent electrochemical activity compared with boron doped diamond<br />

(BDD) electrodes, including a large electrochemical potential window, a low background current<br />

and a considerable electrochemical activity toward ferricyanide reduction and metal ion analysis.<br />

These characteristics demonstrated greatly potential application of the ta-C:P film electrodes for<br />

electrochemical analysis and waste water treatment.<br />

334


P-12<br />

ELECTRON CONDUCTING MATERIALS ON THE BASIS OF<br />

PERFLUOROPHENYLENE-PHOSPHANES<br />

Berthold Hoge, Sonja Hettel, Nina Rehmann<br />

Klaus Meerholz Universität zu Köln, Greinstr. 6, 50939 Köln, Germany. E-mail: b.hoge@uni-koeln.de<br />

Organic semiconducting materials are of great interest with respect to their applications as<br />

organic light-emitting diodes (OLEDs), organic field-effect transistors (OFETs) and photovoltaic<br />

cells. Compared to the p-type semiconductors such as pentacene, electron-transporting (n-type)<br />

semiconductors are still not fully developed and the performances are not satisfactory. Recently,<br />

high performance n-type semiconductors have been obtained by modifying known p-type cores like<br />

acene and oligothiophene derivatives with strongly electron withdrawing fluoro/fluoroalkyl<br />

substituents. However, the influence of fluorinated substituents on the injected electrons is not fully<br />

understood, and has often been attributed to the reduction in LUMO energies.<br />

Polyperfluorophenylenephosphane derivatives (PPFPPs), [P(R)C6F4]n, are accessible by<br />

deprotonation of HP(R)C6F5, followed by oligomerization of the intermediary formed phosphanide<br />

ions, P(R)C6F5-, or by the complex reaction sequence of bromo(pentafluorophenyl)phosphane<br />

derivatives, Br-P(R)C6F5 with R = Ph, C6F5, and elemental magnesium.<br />

Orienting measurements of the obtained materials in “electron only devices” give evidence for<br />

PPFPPs being potential n-type semiconductors. Due to the inhomogenous composition of PPFPPs<br />

and the incommoding magnesium salts, molecular perfluorophenylenephosphanes with four<br />

phosphorus atoms such as P(C6F4PPh2)3 appear to be suitable to increase electron mobility and<br />

lifetime of the resulting electronic devices which were prepared by spin coating techniques.<br />

335


P-13<br />

SYNTHESIS AND CYTOTOXIC EVALUATION OF NOVEL NAPHTHOQUINONE<br />

FUSED PHOSPHORUS HETEROCYCLES<br />

Bin Wang, a Zhiwei Miao, a You Huang a , Ruyu Chen a , and Jie Wang, b<br />

aState Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China<br />

bTianjin Institute of Medical and Pharmaceutical Sciences, Tianjin 300020, China.* Tel:+86 22 23508857; fax: +86 22<br />

23503627; E-mail: chenry@syn.nankai.edu.cn<br />

A series of novel naphthoquinone fused cyclic α-aminophosphonates, 2-alkoxy-3,4-dihydro-<br />

2H-naphtho[2,3-e][1,4,2]oxazaphosphinane-5,10-dione 2-oxide 3-44 have been synthesized for the<br />

first time. X-ray crystallography was performed on compound 14 in order to determine the exact<br />

stereoisomer. The new P-heterocyclic quinone compounds have been evaluated for antitumor<br />

activity on four human tumor cell lines, and five of them possessed significant cytotoxicity (IC50:<br />

0.019–7.64 μM) comparable to that of the reference drug doxorubicin. The molecule size of<br />

compound 3 indicated that these quinone-phosphorus heterocycles may be DNA-intercalators.<br />

©2000 Elsevier Science Ltd. All rights reserved.<br />

Acknowledgments:<br />

This work was supported by Nankai University (J02044 to Zhiwei Miao). We are grateful to Dr.<br />

Liangnian He for his encouragement throughout this work.<br />

Reference and Notes<br />

[1] Middleton, R. W.; Parrick J., In The Chemistry of the Quinonoid Compounds, By Patai, S., Rappoport, Z., Eds.;<br />

John Wiley & Sons: London, 1988; Vol. 2, pp 1019–1066.<br />

[2] Deny, W. A. Anti-Cancer Drug. Des. 1989, 4, 241.<br />

[3] Kohn, K. W. Cancer Res. 1996, 56, 5533.<br />

[4] Yoo, H. W.; Suh, M. E.; Park, S. W. J. Med. Chem. 1998, 41, 4716.<br />

[5] Park, H. J.; Kim, Y. S.; Kim, J. S.; Lee, E. J.; Yi, Y. J.; Hwang, H. J.; Suh, M. E.; Ryu, C. K.; Lee, S. K. Bioorg. Med.<br />

Chem. Lett. 2004, 14, 3385.<br />

[6] Bolognese, A.; Correale, G.; Manfra, M.; Lavecchia, A.; Mazzoni, O.; Novellino, E.; Colla, P. L.; Sanna, G.; Loddo,<br />

R. J. Med. Chem. 2004, 47, 849.<br />

[7] Ryu, C. K.; Han, J. Y.; Jung, O. J.; Lee, S. K.; Lee, J. Y.; Jeong, S. H. Bioorg. Med. Chem. Lett. 2005, 15, 679.<br />

[8] Gomez-Monterrey, I.; Santelli, G.; Campiglia, P.; Califano, D.; Falasconi, F.; Pisano, C.; Vesci, L.; Lama, T.; Grieco,<br />

P.; Novellino, E. J. Med. Chem. 2005, 48, 1152.<br />

[9] Garuti, L.; Roberti, M.; Pession, A.; Leoncini, E.; Hrelia, S. Bioorg. Med. Chem. Lett. 2001, 11, 3147.<br />

[10] Kafarski, P.; Lejczak, B. Curr. Med. Chem.-Anti-Cancer Agents. 2001, 1, 301.<br />

[11] Faulkner, D. J. Nat Prod. Rep. 2002, 19, 1.<br />

[12] Bittner, S.; Gorohovsky, S.; Paz-Tal, O.; Becker, J. Y. Amino Acids, 2002, 22, 71.<br />

[13] Kafarski, P.; Lejczak. B. In Aminophosphonic and Aminophosphinic Acids. Chemistry and Biological Activity,<br />

Kukhar V. P., Hudson H. R. Eds.; John Wiley & Sons: Chichester: 2000, pp 37-38.<br />

[14] Zhou, J.; Qiu, Y. G.; Feng, K. S.; Chen, R. Y. Synthesis 1999, 1, 40.<br />

[15] Wang, B.; Miao, Z. W.; Huang, Y.; Chen, R. Y. Heteroatom Chem. In press.<br />

[16]Wang, B.; Chen, R. Y.; Huang, Y.; Miao, Z. W. Chinese. J. Struct. Chem. 2006, 25, 523.<br />

[17] Podrebarac, E. G.; Cheng, C. C. J. Org. Chem. 1970, 35, 281.<br />

[18] Crystallographic data were deposited at Cambridge Crystallographic data Center, 12 Union Road, Cambridge CB2<br />

1EZ, UK and are available free from there under the deposition number CCDC 294861 for cis-14 and 609760 for 3.<br />

336


[19] Maury, C.; Gharbaoui, T.; Royer, J.; Husson, H. P. J. Org. Chem. 1996, 61, 3687.<br />

[20] Dimukhametov, M. N.; Bayandina, E. V.; Davydova, E. Y.; Zyablikova, T. A.; Dobrynin, A. B.; Litvinov, I. A.;<br />

Alfonson, V. A. Russ. Chem. Bull. Int. Ed. 2001, 50, 2468.<br />

[21] Skehan, P.; Storeng, R.; Scudiero, D.; Monko, A.; McMahon, J.; Vistica, D.; Warren, J. T.; Bokesch, H.; Kenney, S.;<br />

Boyd, M. R. J. Natl. Cancer. Inst. 1990, 82, 1107.<br />

[22] Gewirtz, D. A. Biochem. Pharmacol. 1999, 57, 727.<br />

[23] Moore, M. H.; Hunter, W. H.; Kennard, O. J. J. Mol. Biol. 1987, 206, 693.<br />

[24] Pindur, U.; Haber, M.; Sattler, K. J. Chem. Educ. 1993, 70, 263.<br />

[25] Martin, D. R.; Pizzolato, P. J. J. Am. Chem. Soc. 1950, 72, 4584.<br />

337


P-16<br />

1,3,4-OXAZODIZAOLE CONTAINING CYCLO- AND POLYPHOSPHAZENE<br />

Chen Zhao, Rui Bao, Jin-jun Qiu, Cheng-mei Liu*<br />

Department of chemistry,Huazhong University of Science and Technology, Wuhan, 430074, P. R. China<br />

Polyphosphazenes possess an inorganic P, N backbone with two organic groups connected to<br />

each phosphorus atom. The properties of polyphosphazenes are largely controlled by the choice of<br />

side groups. Polyphosphazenes that are hydrophobic, hydrophilic, ionic conductive, electro-<br />

luminescent can be synthesized by careful choice of the side groups[1-5].<br />

The electron–withdrawing character of the 1,3,4-oxadiazole ring in derivatives facilitates electron<br />

injecting and transport. Polymers containing oxadiazole moieties in either the main chain or a side<br />

group have been synthesized and their electron transportation properties have also been studied<br />

[6-10]. The cyclotriphosphazene and polyphosphazene with oxadiazole group were synthesized in<br />

this paper. The chemical structures are as follow:<br />

O<br />

N<br />

N<br />

N<br />

N<br />

O<br />

O O<br />

P<br />

N N<br />

O O<br />

P P<br />

N<br />

O O<br />

O N<br />

N<br />

CP<br />

N N<br />

O<br />

O<br />

N N<br />

O<br />

N<br />

N<br />

338<br />

( N P ) ( N P )<br />

a<br />

b n<br />

O O<br />

N C<br />

O<br />

N<br />

C<br />

The chemical structures of CP and PP containing 1,3,4-oxadiazole ring were characterized by<br />

FT-IR and 1H-NMR. The optical properties of CP and PP were characterized by UV-Vis and<br />

fluorescent spectrum. The thermal properties were analyzed by DSC and TGA. The results<br />

indicated that the UV-Vis absorption peak of CP was at 286nm(CHCl3 as solvent). When excited at<br />

286nm, the emission peak was at 356nm. Weight loss of CP was only 1.02% on heating to 350 ℃<br />

under nitrogen atmosphere.<br />

The number average molecular weight of polymer was 1.03×104, the polydispersity index was<br />

1.30 and Tg is 85 ℃ . The UV-Vis<br />

absorption peak of PP was at 284nm(CHCl3 as solvent). When<br />

excited at 283nm, the emission peak was at 360nm. Weight loss was 6.69% on heating to 350 ℃<br />

under nitrogen atmosphere. The CP and PP containing 1,3,4-oxadiazole ring are potential<br />

electroluminescence materials.<br />

PP<br />

OCH 3<br />

References<br />

[1] Allcock, H. R., Krause, W.E.. Macromol., 1997, 30, 5683-5687.<br />

[2] Allcock, H. R., Rutt, J. S., Fitzpatrick, R. J. Chem.Mater..1991, 3, 442-449.<br />

[3] Allcock, H. R., Fitzpatrick, R. J., Visscher, K. B.. Chem.Mater..1992, 4, 775-780<br />

[4] Allcock, H. R., Visscher, K. B.. Chem. Mater..1992, 4, 1182-1187<br />

[5] Louis M. Leung, C. M. Liu, C. K. Wong, et al. Polymer., 2002, 43, 233-237.<br />

[6] Tzanetos, N. P., Kallitsis, J. K. Chem. Mater..2004, 16, 2648-2655.<br />

[7] Jin, S.-H., Kim, M.-Y., Kim, J. Y., Lee, K.. J.Am.Chem.Soc..2004, 126, 2474-2480.<br />

[8] Shu, C.-F., Dodda, R., Wu, F.-I. Macro-molecules.2003, 36, 6698-6703.<br />

[9] Wu, F.-I., Shih, P.-I., Shu, C.-F., Tung, Y. Macromolecules.2005, 38, 9028-9036.<br />

[10] Thomas, K. R. J., Lin, J. T., Tao, Y.-T.. Chem.Mater..2002, 14, 3852-3859.


P-19<br />

STEREOSELECTIVE SYNTHESIS AND BIOLOGICAL ACTIVITIES OF<br />

O-(E)-1-{1-[(6-CHLOROPYRIDIN-3-YL)METHYL]-5-METHYL-1H-1, 2,<br />

3-TRIAZOL-4-YL}ETHYLENEAMINO O-ETHYL O-ARYL PHOSPHOROTHIOATES<br />

De-qing Shi<br />

Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, Central China Normal University, Wuhan<br />

430079, Hubei, P. R. China<br />

Email: chshidq@yahoo.com.cn<br />

Neonicotinoid insecticides,as nicotinic acetylcholine receptor inhibitors have attracted increasing<br />

attention because of their safety, low toxicity and high activities [1, 2]. 1,2,3-triazole,<br />

thiophosphorate oxime ethers and their derivatives have been used as insecticides, nematocides,<br />

acaricides and plant growth regulators [3]. As a continuation of our research work in an attempt to<br />

find high activity and low toxicity pesticidal lead compounds [4], we designed and synthesized a<br />

type of novel phosphorothioates containing pyridine and triazole rings (See Fig. 1). Structures of the<br />

products were characterized by IR, 1H NMR, 31P NMR, MS and elemental analyses, one of their<br />

strucyures were determined by single crystal X-ray diffraction. Results of the preliminary bioassay<br />

indicate that the title compounds possess potential insecticidal activities to some extent.<br />

Cl<br />

N<br />

CH3 N<br />

N<br />

N<br />

CH3 N<br />

O<br />

EtO P S<br />

OAr<br />

Ar=2,4-Cl 2C 6H 3 (a), 4-ClC 6H 4 (b), C 6H 5 (c),<br />

2-CH 3C 6H 4 (d), 3-CF 3C 6H 4 (e), 3-CH 3C 6H 4 (f),<br />

2-Cl,4-FC 6H 3 (g), 2-CH 3OC 6H 4 (h), 2,3-Me 2C 6H 3 (i)<br />

Fig. 1<br />

References<br />

[1] (a) Shiokawa, K.; Tsubo, S.; Kagabu, S.; Moriya, K. EP Patent,192060 (1986); (b) Rudolf, E.; Ludwig, P. DE Patent,<br />

2918775 (1980).<br />

[2] Yamamoto, I.; Yabita, G.; Tomizawa, M. & Hissasomi, A. J. Pesti. Sci. 1994, 19, 335-339.<br />

[3] Krivopalov, V . P.; Shkurko, O. P. Russian Chemical Reviews, 2005, 74 (4), 339-379.<br />

[4] Luo, Z.-G.; Shi, D.-Q. J Heterocycl Chem 2006, 43, 1021-1026.<br />

339


P-27<br />

THE INFLUENTIAL FACTOR OF TEMPERATURE ON SYNTHESIS OF L-ARGININE<br />

OLIGO-PEPTIDES MEDIATED BY PHOSPHORUS OXYCHLORIDE<br />

Haiping Ren , Li Ma , Kui Lu*<br />

School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450052 , China<br />

The self-assembling into peptides for amino acids mediated by inorganic phosphorus has<br />

become a focus of science research [1] , whose courses are investigated by using electrosprary<br />

ionization mass spectrometry [2] .<br />

In this paper, it was investigated that the reaction of influential factor of temperature on<br />

synthesis of L-arginine oligo-peptides mediated by phosphorus oxychloride, quenching with water,<br />

the reaction mixtures yielded the corresponding peptides. The ESI-MS showed that at 30 ℃ the<br />

relative intensity of dipeptide(m/z=331)equal to the 35% of amino acid .When the temperature<br />

improved to 40℃, in the same reaction time, the relative intensity of oligo-peptides mixtures could<br />

not get more velocity as well as at 50 ℃ and even higher temperature. So improved the temperature<br />

had a little effect on this reaction .<br />

Figure The influential factor of temperature on synthesis of L-arginine Oligo-peptides ESI-MS<br />

Acknowledgements: The authors would like to thank the financial supports from the Chinese<br />

National Science Foundation (No.20272055, 20572016), Henan Province Science Foundation for<br />

Prominent Youth (No.0312000900) and Office of Education of Henan Province (No.<br />

2006KYCX017).<br />

References:<br />

[1] Lu, K.; Liu, Y.; Zhou, N.; Chen, Y.; Feng, Y.-P. ; Guo, X.-F.; Chen, W.; Qu, L.-B.; Zhao, Y.-F. Acta Chim. Sinica<br />

2002, 60, 372 (in Chinese).<br />

[2] Ba,J-F; Lu Z-Q; Liu N; Liu S-Y; Ji Z-J; Shen S-L. The ESI-MS investigation on synthesis of<br />

poly-peptides.Analytical Chemistry,2005,33(5),661~664. (in Chinese)<br />

340


P-28<br />

DISTRIBUTION AND CONCENTRATION OF TOTAL NITROGEN, TOTAL<br />

PHOSPHOROUS AND TOTAL ORGANIC CARBON IN SOUTH SEA, CHINA<br />

Haiyan Wang 1 , Daxiong Han 2 ,Jianyun Lin 1 .<br />

1 2<br />

Third Institute of Oceanography, State oceanic Administration, Xiamen, 361005, China; Department of Pharmacy,<br />

Medical College of Xiamen University, Xiamen 361005, China<br />

Background: The marine biogeochemistries of carbon, nitrogen and phosphorous have come<br />

under increased scrutiny because of their close involvement in climate change and coastal<br />

eutrophication. However, to our knowledge, few data are available for total nitrogen (TN), total<br />

phosphorous (TP) and total organic carbon (TOC) in South Sea, China.<br />

Objectives: The present study aims to contribute to the knowledge of their status through<br />

investigating the level and distribution of TN ,TP and TOC in South Sea, China.<br />

Methods: A total of 108 seawater samples of 11 sites in south sea, china were collected during<br />

August 29- September4. An automated and simultaneous method for determination of TN and TOC<br />

was applied to all seawater samples. The combined system allowed simultaneous determination for<br />

TOC and TN in the same sample using a single injection and provided low detection limits and<br />

excellent linear ranges for both TOC and TN. The risk of contamination has been remarkably<br />

reduced due to the minimal sample manipulation and automated analyses. And quantitative analyses<br />

of TP in seawater were accomplished by a typical chemical method.<br />

Results: Concentration ranges of TN and TP were 0.06-0.67, and 0.003-0.071 mg/L, respectively,<br />

as well as that of TOC were 0.23-2.51mg/L. The values of TN and TP showed that the status of<br />

nutrition is relatively better in south sea than other marine areas. Moreover, the upright change trend<br />

of TN concentration level as well as TP and TOC according to the experimental results at the total<br />

11 sites is shown in figure 1. The concentration of TN initial increases with the increasing of the<br />

depth, later the value becomes almost constant.<br />

In contrast, the concentration of TOC reduces with the increasing of the depth, later the value<br />

becomes almost unchangeable. Compared with the trend of TN and TOC, that of TP appears<br />

relatively stable. Thus, TP could be regarded as the key factor about eutrophication. This work<br />

should provide some useful information to better understand the environmental status of south sea<br />

in china.<br />

mg /L<br />

2<br />

0<br />

D-06<br />

0 200 400 600 800 1000 1200 1400 1600<br />

341<br />

TOC<br />

TN<br />

TP<br />

Figure 1 the uprigit change trend of TN, TP and TOC in south sea, china,<br />

take site D-06 as an example<br />

m


P-29<br />

MOLECULAR DOCKING OF SUBSTITUTED ALKYLPHOSPHONATES TO<br />

PYRUVATE DEHYDROGENASE<br />

Hao Peng, Hong-Wu He*<br />

Key Laboratory of Pesticide and Chemical Biology, Ministry of Education; and College of Chemistry, Central China<br />

Normal University, Wuhan 430079, China. *E-mail: he1208@mail.ccnu.edu.cn<br />

Pyruvate dehydrogenases, which is known as a target of pesticides, catalyzes the first step of the<br />

multistep process, using ThDP and Mg 2+ as cofactors. A series of acetylphosphinates or<br />

phosphonates have been designed and synthesized as potent inhibitors of PDHc, but none of them<br />

were active enough to be commercialized. 1 We began a systematic, long-term study aiming to<br />

design new inhibitors of PDHc with phosphonate moiety as potential agrochemicals. A series of<br />

1-(substituted phenoxyacetoxy)alkylphosphonate derivatives (Scheme 1) were synthesized and<br />

showed notable herbicidal activities, and some of them have been demonstrated as inhibitors of<br />

PDHc. 2-3<br />

Fortunately, the X-ray structure of PDHc E1-ThDP-Mg 2+ has recently been determined, which<br />

provided not only insights into the probable interaction mechanism of the PDHc E1 with the<br />

inhibitors, but also valuable clues for the prediction of active sites. 4 To explore the inhibitory<br />

mechanism, molecular docking studies on these analogues were performed. The Lamarckian<br />

Genetic Algorithm (LGA) was applied to locate the binding orientations and conformations of the<br />

1-(substituted phenoxyacetoxy)alkylphosphonate derivatives with the PDHc E1. A good correlation<br />

between the calculated binding free energies and the experimental inhibitory activities suggests that<br />

the identified binding conformations of these potential inhibitors are reliable. Therefore, the binding<br />

model and the information of the inhibitor-enzyme interaction would be useful in developing new<br />

agrochemical leads against the PDHc E1. Actually, Virtual screen was performed by using this<br />

reliable model, and several new compounds with comparable activities were designed and<br />

synthesized.<br />

R<br />

P<br />

1O O<br />

R2O O O<br />

R 3<br />

O<br />

SCHEME 1<br />

Acknowledgments<br />

Financial support by National Basic Research Program of China (2003CB114400) and NNSFof<br />

China ( 20372023)<br />

References<br />

[1] Baillie, A. C.; Wright, K.; Wright, B. J.; Earnshaw, C. G. Pestic. Biochem. Physiol., 30, 103 (1988).<br />

[2] He, H. W.; Wang, T.; Yuan J. L. J. Organomet. Chem., 690, 2608 (2005).<br />

[3] Tan, H. L.; Yuan, J. L.; He, H. W. Wang T. Chin. J. Chem. Engi., 6, 4 (2005).<br />

[4] Arjunan, P.; Nemeria, N.; Brunskill, A.; Chandrasekhar, K.; Sax, M.; Yan, Y.; Jordan, F.; Guest, J. R.; Furey, W.<br />

Biochemistry, 41, 5213 (2002).<br />

342<br />

X<br />

Y


P-32<br />

A PRACTICAL ROUTE TO SYNTHESIS SOME PHOSPHORYLATED PRODRUG<br />

Hong-bo Zhang a , Ren-Zhong Qiao a,b *, Yufen Zhao b *<br />

a Department of Pharmaceutical Engineering, Beijing University of Chemical Technology, Beijing 100029, China.;<br />

b The Key Laboratory of Bio-organic Phosphorus Chemistry and Chemical Biology, Ministry of Education.<br />

Nucleoside analogs have drawn a considerable attention as anti-HIV reagents. However, it is<br />

found that d4T, AZT and other nucleoside analogs do not exert antiviral activity directly after<br />

penetrating cells through a passive process, but can be phosphorylated to the corresponding mono-,<br />

di- and triphosphates by cellular kinases to terminate the viral DNA elongation through strong<br />

inhibition of HIV-RT elongation resulting in strong inhibition of HIV-RT. Thus, great efforts have<br />

been continuously made to develop analogs of d4T and AZT. [1]<br />

Here we introduce a route to establish a universal route to modify the structures of nucleoside<br />

analogs by introducing a certain group with anti-HIV or anti-tumors activities. [2] In this route,<br />

phosphorus trichloride is used as the phosphorylation agent, an asymmetric compounds were<br />

synthesized by adding corresponding alcohols. A cold atmosphere is required to make sure the<br />

reaction successfully.<br />

Take d4T as an example, compound 1 is phosphorylated to give an asymmetry H-phosphonate<br />

compound (Fig.1). Choline chloride and some kinds of steroids are phosphorylated with<br />

considerable yields followed the route described above. [3]<br />

HO<br />

O<br />

1<br />

O<br />

N<br />

NH<br />

O<br />

i,ii<br />

i. PCl3, CH2Cl2;<br />

ii. iso-propyl alcohol, TEA.<br />

Project supported by the National Natural Science Foundation of China (No. 20572008).<br />

References<br />

[1] Xu Tang, Cheng Huang, Hua Fu and Yu-fen Zhao, Synlett 2005, 12, 1930-1932.<br />

[2] Xiao-Bin Sun, Jian-Xun Kang and Yu-Fen Zhao, Chem. Commun., 2002, 2414-2415.<br />

[3] Rong Zeng, Hua Fu, Yu-fen Zhao, Macromolecular Rapid Communications, 2006, 27, 548–552.<br />

343<br />

O<br />

O<br />

P<br />

H<br />

2<br />

O<br />

O<br />

NH<br />

N<br />

O<br />

O


P-53<br />

ULTRASONIC PHOTOCATALYTIC DEGRADATION OF THE PESTICIDE<br />

“METHYL PARATHION”<br />

LI He-ping*<br />

Department of Chemistry and Environmental Engineering, Changsha University of Science and Technology, Changsha<br />

410076, PR China Tel.: +86 731 2618234; Fax: +86 731 2618234; E-mail: lihepinghn@163.com<br />

Different affecting factors on ultrasonic photocatalytic degradation of methyl parathion pesticide,<br />

a kind of typical organophosphate insecticides, by adopting nano Fe3O4 doping anatase TiO2<br />

catalyst after treatment of high-temperature activation was investigated. Experimental results<br />

indicated that Fe3O4 doping TiO2 catalyst greatly enhanced the ultrasonic degradation, and<br />

confirmes that methyl parathion is slowly degraded by direct ultrasonic photolysis in the presence<br />

of dissolve oxygen. Addition of nano Fe3O4 doping anatase TiO2 to the reaction system substantially<br />

increases the initial rate of reaction and the overall conversion of methyl parathion, the ultrasonic<br />

degradation kinetics of methyl parathion pesticide in the presence of nano anatase TiO2 catalyst<br />

followed the first order reaction. The degradation ratio is 96.5% for methyl parathion pesticide,<br />

99.0% removal for COD with in 60 min under the experimental conditions such as 40 K Hz<br />

ultrasonic frequency, 5.0 W/cm2 output power, 500 mg/ L amount of TiO2 catalyst (1.5% doping),<br />

pH 6.00, and temperature 25℃, when the initial methyl parathion pesticide concentration is 40<br />

mg/L. Completely photocatalytic degradation of methyl parathion at pH = 6.00 was found to occur<br />

in less than 90 minutes after reaction began.<br />

344


P-56<br />

APPLICATION OF TETRAKIS HYDROXYMETHYL PHOSPHONIUM<br />

IN LEATHER PRODUCTION<br />

Li Ya, Shao Shuangxi*, Jiang Lan, Han Ying, Shi Kaiqi<br />

Institute of Applied Chemistry, Ningbo University of Technology, Ningbo 315016,Zhejiang, China. Tel: +86 574<br />

87080148;Fax: +86 574 87081217; Email: nbssx@126.com<br />

Tetrakis hydroxymethyl phosphonium salts hereafter are abbreviated as THP salts have been<br />

widely used as textile retardants, oil-field waste water treatment agents and biocide in other fields.<br />

In 1956, THP salts was firstly used in leather production. The use of THP salts in chrome free<br />

tanning was studied in the following years and it was found that the copolymers of THP<br />

chloride(THPC) and phenol can be used as pretannages to produce leathers having excellent<br />

physical properties. The best tannages are obtained with a concentration of more than 3% THPC<br />

and about 2% of phenol. THP salts can also be used as cross linkers in melamine formaldehyde or<br />

urea formaldehyde solutions to form a copolymeric tanning agent in situ and the shrinking<br />

temperature of the tanned leather is above 100 . The obtained leathers have ideal mechanical<br />

℃<br />

properties with the combination tanning of 8% THP salts and 8% dicyandiamine at pH 6.0. The<br />

combination tanning of THP sulfate (THPS)-Fe, THPS-Al, THPS-silica, and THPS-silica-Al can<br />

generate ideal leather with good organoleptic properties. The leather tanned by 2.5% Fe and 1.5%<br />

THPS are light in colour and with the shrinkage temperature of about 95 and that of the leather<br />

℃<br />

tanned by THPS-silica-Al in combination is 86 . Furthermore, THP salts can be used in acid<br />

℃<br />

degreasing prior to tanning and as cross linker for casein finishes after tanning. But the mechanism<br />

of THP salts tanning was poorly understood. The study indicates that THP salts mainly link with the<br />

amino groups of hide collagen at a mole ratio of n(P):n(N)=1:2.2. The release of formaldehyde in<br />

the process of THP salts tanning is one of the deterring factors for their widespread application in<br />

leather tanneries.<br />

345


P-58<br />

THE SYNTHESIS OF<br />

N-HYDROXYMETHYL-3-(DIALKYLPHOSPHONO) PROPIONAMIDE<br />

Xiao-lian Hu 1 , Ru-yi Zou 1 , Shang-bin Zhong 1 , Jun-liang Yang 1 , Zhi-yu Ju 1 , Yong Ye* 1 , Xin-cheng Liao 1 , Yu-fen<br />

Zhao* 1,2<br />

1. Department of Chemistry, Key Laboratory of Chemical Biology and Organic Chemistry, Zhengzhou University,<br />

Zhengzhou, 450052, China; 2. The Key laboratory for Bioorganic Phosphorus Chemistry and Chemical Biology<br />

(Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084,China. E-mail:<br />

yeyong03@tsinghua.org.cn; yfzhao@mail.tsinghua.edu.cn.<br />

It has been known for over 30 years that phosphorus compounds can retard flame in cellulosic<br />

textiles. Despite being frequently implicated in fires causing injuries and fatalities, cotton fabrics<br />

have a major share of the world’s textile market. Cotton is essentially cellulose and most durable<br />

fire-retardancy finishing has been done by the application of organo phosphorus compounds. Being<br />

rich in phosphorus and nitrogen, phosphonopropionamide (pyrovatex CP) has been successfully<br />

used as a flame-retardant agent for cotton. In order to investigate effect of the N/P ratio, we<br />

prepared some pyrovatex CP. Synthetic route is shown at follow:<br />

Freshly-prepared sodiun alkyloxide solution was added slowly to a solution of acrylamide and<br />

dialkyl phosphite. The reaction was monitored by ESI-MS. The propionamide was isolated by<br />

seeding the cooled solution and filtering off the precipitated crystals. These were washed with<br />

organic solvent and dried. The propionamide was then added gradually to formalin, the pH of the<br />

mixture being maintained at 8.0 by adding approximately caustic soda solution. After the reaction<br />

completed (detected by ESI-MS), it was allowed to cool to room temperature and filtered. A<br />

solution of N-hydroxymethyl-3-(dialkylphosphono) propionamide was obtained. Its fire-retardancy<br />

effect research is being continued.<br />

Acknowledgments: the authors would like to thank the financial supports from NNSFC<br />

(No.20602032 and 20572061<br />

Reference<br />

[1] R. B. Le Blanc , Text Ind. 1974, 138, 115<br />

[2] R. Bruce, R. L. b. Le Blanc, Text Chem. Colorist, 1997, 29,2<br />

[3] F .F. Flynn, W. A. Reeves, J. D. Futhrie, et al., US 2,743,299<br />

[4] H. N. Dornach, H. H. Basel, J. Kern, et al., US 3,754,981<br />

346


P-60<br />

ELECTROSPRAY IONIZATION TANDEM MASS SPECTROMETRY OF<br />

N-PHOSPHORYL-α-, β- AND γ- AMINO ACIDS<br />

Liming Qiang a , Shuxia Cao a , Jianchen Zhang a , Xincheng Liao a , Yufen Zhao a,b *<br />

a The Key Laboratory of Chemical Biology and Organic Chemistry, Department of Chemistry, Zhengzhou University,<br />

Zhengzhou, 450052, P.R.China; b Key Laboratory for Bioorganic Phosphorus Chemistry of Ministry of Education,<br />

Department of Chemistry School of Life Sciences and Engineering, Tsinghua University, Beijing 100084, P.R.China<br />

Phosphoryl amino acids are the smallest units of phosphoproteins and have many interesting<br />

biomimic reactivities1. It is significant to study them by electrospray ionization mass spectrometry<br />

(ESI-MSn) for further understanding their unique structure.<br />

In this letter, different kinds of N-phosphoryl amino acids, such as N-(O,O′-diisopropyl)<br />

phospho-L-α-alanine (DIPP-L-α-Ala), N-(O,O′-diisopropyl) phospho-D-α-alanine (DIPP-D-α-Ala),<br />

N-(O,O′-diisopropyl) phospho-β-alanine (DIPP-β-Ala) and N-(O,O′-diisopropyl) phospho-γ-amino<br />

butyric acid (DIPP-γ-Aba) were investigated by positive and negative electrospray ionization ion<br />

trap mass spectrometry (ESI-MS/MS). Their fragmentation pathways were investigated. The<br />

stepwise fragmentation of [M+ Na]+ ions and [M- H]- ions of them all underwent a five-membered<br />

(for DIPP-L-α-Ala and DIPP-D-α-Ala)2, six-membered (for DIPP-β-Ala) and even<br />

seven-membered (for DIPP-γ-Aba) ring transition state formed by the nucleophilic attack of the<br />

C-terminal carboxyl oxygen on the phosphorus (Figure 1), leading to a P–N to P–O bond migration.<br />

The phenomenon could be as a result of the strong affinity of the phosphoryl group for the hydroxyl<br />

group.<br />

a b<br />

(H 3C) 2HCO<br />

HO<br />

ONa<br />

P<br />

HO<br />

H<br />

N<br />

O<br />

(CH 2 )n<br />

347<br />

O<br />

HO<br />

P<br />

N<br />

O<br />

(CH 2)n<br />

[M+Na-C 3H 6] + [M-H-(CH 3) 2CHOH-C 3H 6] -<br />

n=2: M=253 for DIPP-β-Ala; n=3: M=267 for DIPP-γ-Aba<br />

FIGURE 1 Six-membered ring or seven-membered ring transition state for DIPP-β-Ala and<br />

DIPP-γ-Aba: a. sodium adducts; b. negative ions<br />

References<br />

[1]. Cheng CM, Liu XH, Li YM, et al. Origins of Life and Evolution of the Biosphere. 2004, 34: 455.<br />

[2]. Cao SX, Zhang JC, Xu J, Liao XC, Zhao YF. Rapid Commun. Mass Spectrom. 2003, 17: 2237.<br />

O


P-63<br />

SEDIMENT PHOSPHORUS BUFFERING CAPACITY IN DRAINAGE DITCH IN HILLY<br />

AREA OF PURPLE SOIL, CHINA<br />

Luo Zhuan-xi 1,2 ,Zhu Bo 1 ,Wang Tao 1,2<br />

1, Institute of Mountain Hazards and Environment ,the Chinese Academy of Sciences , Chengdu 610041, China;<br />

2, Graduate School of the CAS ,Beijing 100039, China<br />

Phosphorus (P) losses from residence/agriculture lands degrade surface waters due to<br />

anthropogenic eutrophication. A large portion (great than three-fourth) of the eroded sediment is<br />

deposited in their delivering ways, such as stream and drainage ditch network. Stream and ditch<br />

sediments interact with P in the water column and as such play a pivotal ecological role in buffering<br />

in water column P concentration. Previous studies focused on plot-to-field scale P losses, ponds and<br />

lakes sediment from sites interacting with soluble P and its risk evaluation. Little information<br />

among different ditch types has been gathered on risk evaluations of sediment interacting with<br />

water column P. This study was conducted to examine the phosphorus equilibrium between the<br />

sediments and water column, sediment acting as whether or not potential impact on the<br />

eutrophication of downstream in four different ditch types. Surface water and sediment samples<br />

were collected and analyzed for organic matter (OM), pH, Conductivity, oxalate-extractable P,<br />

oxalate-extractable Al and Fe content from sites along four ditches, i.e. Residence drainage ditch<br />

(Rdd), Agriculture drainage ditch (Add), Single complex ditch (Scd, only one Rdd and Add together,<br />

catchment area 32.4ha) and Multiple complex ditch (Mcd, many Rdd and Add together, catchment<br />

area 1230ha).<br />

Soluble P concentration was higher in source areas (Rdd (0.366mg P L-1), Add (0.143mg P L-1,<br />

respectively) and greater catchments (Mcd, 0.123mg P L-1). However, the P concentration was one<br />

time lower in smaller catchments than others (Scd, 0.067 mg PL-1). Most of Sediment from site in<br />

ditch acted as P sink except Scd, which Soluble P in drainage water were greater than EPC0<br />

concentrations. The phosphorus sorption maximum (Smax) ranged from 145.75 to 289.35 mg P<br />

kg-1 sediment, which Smax in Rdd was lowest, but Smax in Add was greatest, and Smax between<br />

Scd and Acd were not obviously different, i.e. 234.31, 210.32 mg P kg-1 sediment, respectively;<br />

equilibrium P concentrations (EPC0) ranged from 0.03 to 0.06 mg P L-1, which Rdd > Add> Scd ><br />

Mcd. Therefore, Add, Scd and Mcd had stronger p buffering capacity than Rdd, probably resulting<br />

from the drainage polluted water because of higher soluble P in water column.<br />

The degrees of phosphorus saturation (DPS) of ditch sediments were lower than critical value of<br />

DPS (25%), ranged from 4.01 to 8.96%, which had not a potential impact on eutrophication of<br />

receiving water. Smax was significantly correlated oxalate-extractable P (Pox, r2 =-0.997, p


P-83<br />

LIQUID CRYSTALLINE BEHAVIOR OF CYCLOTRIPHOSPHAZENE<br />

Rui Bao, Chen Zhao, Jin-jun Qiu, Cheng-mei Liu*<br />

Deparment of Chemistry, Huazhong University of Science and Technology, Wuhan, 430074, P. R.China<br />

A great deal of scientific and technological work has been devoted to supermolecular liquid<br />

crystals in recent years[1,2]. Cyclotriphosphazenes are very attractive inetermidie in this area.<br />

These compounds are highly versatile molecules with a multiarmed rigid ring that can be used as a<br />

core for the formation of one-dimensional columnar superstructures. Recently,<br />

cyclotriphosphazenes which exhibited columnar mesomorphism have been synthesized by Jimenez<br />

J. et al.[3,4].<br />

Cyclotriphosphazenes bearing stilbene derivatives as promesogenic units linked to phosphorus<br />

atoms were synthesized in our group. The method was based on the direct reaction of<br />

hexa(4-formylphenoxy)cyclotriphosphazene[N3P3(OC6H4-p-CHO)6] with six equivalents of<br />

(4-alkoxyphenyl)acetonitrile[ROC6H4CH2CN](R=C2H5, C6H13, C12H25, C18H37).<br />

OHC<br />

OHC<br />

OHC<br />

O O<br />

P<br />

N N<br />

O<br />

P P<br />

O<br />

N<br />

O<br />

O<br />

CHO<br />

CHO<br />

R=C2H5, C6H13, C12H25, C18H37<br />

CHO<br />

+<br />

NC<br />

OR<br />

RO<br />

349<br />

O<br />

O<br />

P<br />

N N<br />

O<br />

P P<br />

O<br />

N<br />

O<br />

O<br />

The structures of the products were characterized by 1H-NMR, 31P-NMR, UV-Vis and IR<br />

spectra. The liquid crystalline behaviors of organocyclotriphosphzenes which have different<br />

terminal alkyl chain are investigated by differential scanning calorimetry(DSC), polarized optical<br />

microscopy(POM), and X-ray diffraction(XRD).<br />

Reference<br />

[1] Donnio B., Barbera J., Gimenez R., et al. Macromolecules, 2002, 35, 370-381.<br />

[2] Dimitrakopoulos C. D., Malenfant P. R. L. Adv. Mater. 2002, 14, 99.<br />

[3]Barbera J., Bardaji M., Jimenez J., et al. J. Am. Chem. Soc., 2005, 127(25), 8994-9002.<br />

[4] Barbera J., Jimenez J., Laguna A., et al. Chem. Mater., 2006, 18(23), 5437-5445.<br />

RO<br />

OR<br />

CN<br />

NC<br />

CN<br />

NC<br />

CN<br />

OR<br />

NC<br />

OR<br />

OR


P-84<br />

MONITORING INFLUENCE OF REACTION CONDITIONS ON SELF-ASSEMBLY INTO<br />

OLIGO-PEPTIDES FOR THREE SULF-AMINO ACIDS BY USING ESI-MS<br />

Kui Lu,Rui Li,Li Ma<br />

School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450052, China<br />

The amino acids and phosphorus play vital roles in life science. Even though there are lots of<br />

papers about peptide synthesis related to the chemical evolution of life, there is litter investigation<br />

on the intrinsic relationship between the phosphorus and amino acids [1] .<br />

In our previous work, we found that with the assistance of inorganic phosphorus amino acids<br />

could be assembled into oligo-peptides [2] . In this paper, the phosphorylation of three sulf-amino<br />

acids and the self-assembly into oligo-peptides mediated by phosphorus oxychloride were studied<br />

by using electrospray ionization mass spectrometry (ESI-MS). On quenching with water, the<br />

reaction mixtures, which were produced under different reaction conditions, yielded the<br />

corresponding peptides. Influence of the reaction conditions such as reaction time, solvent and<br />

temperature on self-assembly into olig-peptides for three sulf-amino acids were monitored. Also,<br />

the assembled into oligo-peptides activity of three sulf-amino acids were discussed. The reactions<br />

are shown in scheme 1.<br />

O<br />

H 2N CH C<br />

R<br />

OH<br />

POCl 3<br />

R = H2C S S CH2 CH COOH<br />

R = H2C CH2 S CH3 R =<br />

H 2C SH<br />

H 2O or ROH<br />

NH 2<br />

350<br />

H<br />

O<br />

HN CH C OH<br />

n<br />

R<br />

n = 2~4<br />

n = 2~11<br />

n = 2~9<br />

Scheme 1 Self-assembly of three amino acids into oligo-peptides mediated by phosphorus<br />

oxychloride<br />

In conclusion, a simple and efficient method for the synthesis of oligopeptides have been found.<br />

The presence of phosphorus could accelerate the interaction of amino acids. It might be useful in<br />

the study about the origin of protein and co-evolution of life.<br />

Acknowledgements: The authors would like to thank the financial supports from the Chinese<br />

National Science Foundation (No.20272055, 20572016), Henan Province Science Foundation for<br />

Prominent Youth (No.0312000900) and Office of Education of Henan Province (No.<br />

2006KYCX017).<br />

References:<br />

[1] N. Zhou, K. Lu, Y. Liu, et al, The abstracts of the 13 th international conference on the origin of life, 2002, P87<br />

[2] K. Lu, Y. Liu, N. Zhou, et al, Acta Chimica Sinica, 2002, 60(2): 372 (in Chinese)


P-90<br />

ISOLATION AND DETERMINATION OF DIASTEREOISOMERS OF AMINO ACID<br />

HYDRIDOPHORANE BY HPLC-ESI-MS<br />

Shuxia Cao 1 , Yali Xie 1 , Jinming Liu 1 , Yanchun Guo 1 , Xincheng Liao 1, Yufen Zhao 1,2*<br />

1 Key Laboratory of Chemical Biology and Organic Chemistry, Department of Chemistry, Zhengzhou University,<br />

Zhengzhou, 450052, P.R.China ; 2 Key Laboratory for Bioorganic Phosphorus Chemistry of Ministry of Education,<br />

Department of Chemistry School of Life Sciences and Engineering, Tsinghua University, Beijing 100084, P.R.China<br />

Pentacoordinated phosphorus derivatives have biochemical activities and are widely used in<br />

medicine, pesticide and ergonomics, etc. Hydridophorane is a kind of special pentacoordinated<br />

phosphorus derivatives, and has versatile specific properties which can be used to synthesize some<br />

important compounds.[1] The new literature reported that pentacoordinated bimolecular amino acid<br />

hydridophorane could be a new kind of potent and efficient inhibitors towards tyrosinase.[2] So we<br />

synthesized a series of pentacoordinated bimolecular amino acid hydridophorane and in the system,<br />

a pair of diastereomers of hydridophorane were observed. In this letter, HPLC-ESI-MS was used to<br />

isolate and determinate the diastereoisomers. L-valine was taken as an example. By the reaction of<br />

L-valine, triethylamine and phosphorus trichloride in THF at 70 ℃ for two hours, bimolecular<br />

L-valine hydridophosphorane were synthesized. The products were subjected to HPLC-ESI-MS. As<br />

shown in figure1, the diastereoisomers were isolated and determinated. As shown in figure2, the<br />

absolute configuration was determinated by the X-ray crystallographic study.[3] The peak1 in Fig1<br />

was corresponding to a configuration, and the peak2 in Fig1 was corresponding to b configuration.<br />

We have established an effective methodology for synthesizing and isolating hydridophorane, and<br />

through this method, the diastereoisomers of L-Trp, L-Phe, L-leu, L-Met hydridophorane were<br />

isolated and determinated. The results provide a better method for synthesizing and isolating a<br />

certain configuration pentacoordinated bimolecular amino acid hydridophorane .<br />

Fig. 1 HPLC chromatogram of the L-valine hydridophosphorane<br />

Fig.2 Diastereomers configurations of L-valine hydridophosphorane<br />

References<br />

[1] Liu Lun-zu, Liu Zhao-jie. An Introduction to Organophosphorus Chemistry [M]. Wuhan: Central China Normal<br />

University Press,1991, 182.<br />

[2] Yu L, Liu Z, et al. [J], Amino Acids, 2005, 28: 369-372.<br />

[3] Shu-Xia Cao,Jin-Ming Liu,et al. Acta Cryst, 2006, E62, 4642-4643.<br />

351


P-97<br />

SYNTHESIS OF LONG CHAIR ORGANOPHOSPHORUS COMPOUNDS ON THE BASIS<br />

OF INDUSTRIAL FRACTIONS OF HIGHER OLEFINS<br />

Il’yas S. Nizamov 1 , Yan Ye. Popovich 1 , Yevgeniy S. Ermolaev 1 , Il’nar D. Nizamov 1 , Gulnur G. Sergeenko 1 , Vladimir A.<br />

Alfonsov 1 ,Elvira S. Batyeva 1 , Magdeev I.M. 1 , Reznik V.S. 1 , Sinyashin O.G. 1 , Yarullin R.S. 2<br />

1 A.E. Arbuzov Institute of Organic and Physical Chemistry,Arbuzov Str., 8, Kazan, 420088, Russia, E-mail:<br />

nizamov@iopc.knc.ru ; 2 Join Stock Company “Tatneftekhiminvest-holding”, Yershov Str., 29, Kazan, 420045, Russia,<br />

Technological methods were developed for synthesis of higher phosphorus acids and thioacids,<br />

their esters and salts by the reactions of phosphorylation and thiophosphorylation of olefins of<br />

industrial fractions С16-С40 and propylene tetramer with phosphorylating agents. Thus, convenient<br />

method of synthesizing O,O-dialkyl esters of long chair alkylphosphonic acids was developed by<br />

the reactions of O,O-dialkyl phosphites with olefins of fractions С16-С18, С20-С26 и С28-С40 in<br />

1:1 molar ratio in the presence of catalytic amounts of benzoyl peroxide at 135-140 оС for 10-12 h.<br />

O,O-Dialkyl alkylphosphonates were isolated by vacuum distillation in 62-80 % yields.<br />

O,O-Dialkyl alkylphosphonates were used as intermediates for the synthesis of corresponding<br />

higher alkylphosphonic acids and their potassium salts.<br />

CH<br />

3<br />

-(CH<br />

2<br />

)<br />

n<br />

-C(R')=C(R")H + (RO)<br />

2<br />

PH<br />

R = Me, Pr-i; R' = H, Alk; R" = H, Alk; n = 13-37<br />

O<br />

352<br />

CH 3 (CH 2 ) n C(R')H-С (R")H-P(OR) 2<br />

Higher alkylphosphonous and dialkylphosphinic acids were obtained by the reactions of water<br />

solution of hypophosphorous acid with olefins of fractions С16-С18, С20-С26 and С28-С40 and<br />

propylene tetramer in 1:1 molar ratio in the presence of benzoyl peroxide (5 % mass.) and sulfuric<br />

acid under refluxing.<br />

O<br />

O<br />

H H<br />

CH<br />

3<br />

-(CH<br />

2<br />

)<br />

n<br />

-C(R")=C(R')H<br />

2<br />

POH<br />

CH<br />

3<br />

-(CH<br />

2<br />

)<br />

n<br />

-C(R")H-С(R')H-P<br />

OH<br />

O<br />

R'= H, Alk; R" = H, Alk; n = 13-32<br />

+ CH 3 (CH 2 ) n C(R")H-С(R')H-P-C(R')H-C(R")H-(CH 2 ) n CH 3<br />

Addition reactions of dithiophosphoric and bisdithiophosphonic acids with olefins of fractions<br />

С16-С18 and С20-С26 and propylene tetramer were performed at 80 о С for 1-2 h in 1:1 molar ratio<br />

in the presence of anhydrous of ZnCl2 in acetonitrile solution with the formation of products formed<br />

in accordance with Markovnikow’s rule.<br />

S<br />

S<br />

ZnCl<br />

2<br />

(RO)<br />

2<br />

PSH + CH<br />

3<br />

(CH<br />

2<br />

)<br />

n<br />

C(R')=C(R")H CH<br />

3<br />

(CH<br />

2<br />

)<br />

n<br />

C(R')-S-P(OR)<br />

MeCN<br />

2<br />

CH<br />

2<br />

(R")<br />

R = Et, i-Bu; R' = H, Alk; R" = H, Alk; n = 13, 15 и 17-23<br />

OH<br />

+<br />

O


P-107<br />

SYNTHESIS AND BIOLOGICAL ACTIVITIES OF O,O-DIALKYL<br />

1-((2-CHLOROTHIAZOL-5-YL OR 6-CHLOROPYRIDIN-3-YL) METHYL<br />

-4-METHYL-1H-1, 2, 3-TRIAZOL-4-YL-5-CARBONYLOXY SUBSTITUTED<br />

METHYL PHOSPHONATES<br />

Xiao-Bao Chen & De-Qing Shi<br />

Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, Central China Normal University, Wuhan<br />

430079,Hubei,P.R.China,<br />

E-mail:chshidq@yahoo.com.cn<br />

Neonicotinoids, accounting for 10-15% sales in worldwide insecticides, are increasingly used for<br />

crop protection and animal health due to their high activities and safety, [1]. Because of their<br />

structures and action mechanism similarities to those of nicotine, the agrochemicals which contain a<br />

pyridine ring or a thiazole ring are called neonicotinoids. The 1,2,3-triazoles and<br />

1-hydroxyalkylphosphonates, which are used as insecticides, nematocides, acaricides and plant<br />

growth regulators, [2,3] play an important role in pesticide science. In an attempt to find high<br />

activity and low toxicity pesticidal lead compounds [4], we continually designed and synthesized a<br />

type of novel phosphonates 6. The synthetic routine is listed in Scheme 1.<br />

DMSO/K2CO3 CH3COCH2COOEt NaOH/H2O R R N3 R<br />

N<br />

N<br />

N<br />

CH3 COOEt<br />

N<br />

N<br />

N<br />

CH3 OH<br />

O<br />

1 2 3<br />

SOCl 2<br />

R N<br />

N N<br />

CH 3<br />

O<br />

Cl<br />

Et 3N/CHCl 3<br />

HOCHPO(OR 2) 2<br />

R 1<br />

353<br />

R N<br />

N N<br />

4 5a~i 6a~i<br />

a: R= Cl CH2 ; b: R=<br />

N<br />

CH3 O<br />

OR2<br />

O P<br />

OR2 O R1 Their structures were confirmed by IR, 1H NMR, 31P NMR, MS and elemental analyses, two of<br />

them were determined by single crystal X-ray diffraction. The insecticidal activities test of title<br />

compounds are on the way.<br />

References<br />

[1] Yamamoto, I., and Casida, J. E., Eds. Nicotinoid Insecticides and the Nicotinic Acetylcholine Receptor,<br />

Springer-Verlag,Tokyo,1999.<br />

[2] Ogura, T.; Numata, A.; Ueno, H.; Masuzawa, Y. WO PCT 039 106 (2000).<br />

[3] He,H.-W.;Wang.T.;et al. CN Patent 1685825 (2005).<br />

[4] Luo, Z.-G.; Shi, D.-Q. J Heterocycl Chem 2006, 43, 1021-1026.<br />

Cl<br />

N<br />

S<br />

CH 2


P-110<br />

DETERMINATION OF ORGRANOPHOSPHOROUS PESTICIDES USING<br />

PHOSPHOROUS IONIC LIQUID AS EXTRACTION AND LPME-HPLC<br />

Xie Hongxue 1 He Lijun* 1 Wang Meimei 1 Wu Xiuling 2 Wu NaNa 1<br />

1.Department of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou, China, 450052;<br />

2.Faculty of Materials Science and Chemical Engineering, China University of Geosciences, Wuhan, China,430074<br />

A novel method for the determination of phorate, poxim, parathion and other<br />

orgranophosphorous pesticides(OPPs) in water samples has been developed using phosphorous<br />

ionic liquid-based liquid-phase microextraction(LPME) [1] coupled with high-performance liquid<br />

chromatography(HPLC). The resulting procedure was shown to be a good alternative methodology<br />

for the determination of selected orgranophosphorous pesticides(OPPs) in environmental samples.<br />

It is proved that the methods are simple, fast, reproducible, effective and environmentally friend.<br />

The procedure of liquid-phase Microextraction(LPME) is show in Fig.1. The optimized<br />

extraction conditions has been described in the literature. [2] The analytes include phorate, poxim,<br />

parathion, carbofuran, chlorpyrifos, omethoate, carbaryl. These analytes consist of<br />

orgranphosphorous pesticides (OPPs), Organochlorine pesticides (OCPs) and carbamate pesticides.<br />

We used ionic liquids and other organic solvent as extraction of liquid-phase Microextraction<br />

(LPME). The result suggests that the extraction efficiency of phosphorous ionic liquid<br />

(1-butyl-3-methylimidazolium hexafluorophosphate, [C4MIM]PF6) [3] is better than that of organic<br />

solvent. Moreover, the enrichment folds of orgran phosphorous pesticides(OPPs) by phosphorous<br />

ionic liquid([C4MIM]PF6) is especially high and steady. The phorate, poxim, parathion,<br />

chlorpyrifos, omethoate and other phosphorous pesticides are greatly enriched by phosphorous ionic<br />

liquid([C4MIM]PF6),and the enrichment factor of these are 665, 553, 630, 150 and 110,<br />

respectively. The R.S.D. values obtained were satisfactory and ranged between 2.1% and 12.0% for<br />

all analytes. The results show a interesting phenomena that the analytes and extraction solvent are<br />

all phosphorous, which accords the similar dissolve mutually theory.<br />

We synthesized phosphorous ionic liquids , including 1-butyl-3-methylimidazolium<br />

hexafluorophosphate, 1-ethyl-3-methylimiazolium hexafluorophosphate,1-acetyl-3-methylimidazolium<br />

hexafluorophosphate,1-butyl-3-methylimidazolium hexafluorophosphate, and so on. The<br />

result show that these phosphorous ionic liquids can extract phosphorous pesticides efficiently. By<br />

using this strategy, we synthesized especial ionic liquids, which may link with boracic, nickelic,<br />

chloric and nitric group to extract boric, nickelic, chloricand nitric compound.<br />

References<br />

[1] Jeannot M A, Cantwell F F. Anal. Chem.[J], 1996 , 68: 2236<br />

[2] Xie H X, He L J,Wu Y, Lu K,Si X Zh. China Anal. Chem[J],accept<br />

[3]He L J, Zhang W Z, Zhao L, Liu X, Jiang S X. J. Chromatog. A.[J], 2003, 1007: 39.<br />

354


Norm.<br />

500<br />

400<br />

300<br />

200<br />

100<br />

0<br />

Fig.1 Schematic illustration of LPME system<br />

1.Syringe 2. Aqueous sample<br />

3. Water bath 4. Stirring bar<br />

5. Magnetic stirrer 6. Syringe needle<br />

7. PTFE ring 8. Extraction solvent<br />

3.670<br />

0 2 4 6 8 10 12<br />

Fig.2 chromatogram of phorate in aqueous solution(a) and extracted by [C4MIM]PF6 (b)<br />

(1= [C4MIM]PF6 2=water 3=phorate)<br />

355<br />

10.070<br />

min


P-111<br />

SYNTHESIS AND THERMAL PROPERTY OF<br />

BIS(1-OXO-2,6,7-TRIOXO-1-PHOSPHABICYCLO[2,2,2]OCTANE-4-METHANOIC)-2,2-D<br />

IMETHYL-1,3-PROPANEDIESTER<br />

Xi-Jun Sheng, Zheng-Qiu Li, Hong-Wu He*<br />

Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, College of Chemistry, Central China<br />

Normal University, Wuhan 430079, People's Republic of China.<br />

Organophosphorus-containing flame retardant is a predominant product. It can give a charring<br />

layer to coating the interface of the polymer during combustion. And this charring layer could serve<br />

as a diffusion barrier to slow down the gasification and vaporization of organic polymers. As an<br />

additive flame retardant, so many of them are liquid, and have a poor thermal property, evaporate<br />

easily and do some bad to material’s property, these defects restrict the rang of their applications.<br />

Compound PFR-8 which has a big molecular weight; good thermal stability and halogen free, was<br />

designed and synthesized.<br />

O<br />

P<br />

O<br />

O HOCH2C(CH3) 2CH2OH O<br />

O COCl<br />

P<br />

Et3N/CH3CN O<br />

O<br />

O<br />

O<br />

O<br />

O<br />

O O O P O<br />

CH3 O<br />

1 PFR-8<br />

Scheme 1<br />

Compound 1 was prepared from pentaerythitol (PE) and phosphorus oxychloride (POCl3)<br />

according to literature. Compound PFR-8 can be obtained by the reaction of compound 1 with<br />

neopentyl glycol (NPG) in the presence of triethylamine and acetonitrile, PFR-8 was obtained as<br />

white solid in yield 86%. Its structure was confirmed by 1 H NMR, 31 P NMR, IR and elemental<br />

analysis, and the thermal behaviors of PFR-8 was studied by TG and DSC respectively. The result<br />

indicated that PFR-8 have high glass transition temperature (Tg=275.7 ℃ ), decomposed remarkably<br />

between 322.4~330 ℃ , and weight lost rapidly in this temperature area. When it was heated to<br />

600 ℃ , the charring residue was 31.4%. PFR-8<br />

is expected to be a potential organophosphorus<br />

flame retardant.<br />

Acknowledgments<br />

Financial support by National Basic Research Program of China (2003CB114400) and NNSFof<br />

China ( 20372023)<br />

REFERENCES<br />

[1] Li Yu-Gui, Wang Jian-Ji, HAN Tao, Acta Chimica Sinica, 46,679-685, (1988).<br />

[2] David W. A., Edwyn C. A., Leslie E. S., Poly. Deg. Stab., 45,399-408, (1994).<br />

356<br />

CH 3


P-116<br />

THE IMPROVED METHOD FOR THE INDUSTRIAL SCALE PREPARATION OF<br />

ADENOSINE CYCLOPHOSPHATE (cAMP)<br />

Xiu Qiang Wang, Dong Chao Wang, Ran Xia, Zhi Guang Zhang, Hai Ming Guo, Gui Rong Qu*<br />

College of Chemistry and Environmental Science, Henan Normal University, Xinxiang, Henan 453007, P. R.<br />

China;Tuoxin Biochemical Technology & Science Co., Ltd. Xinxiang, Henan 453000, P. R. China, E-mail:<br />

quguir@sina.com<br />

cAMP (3) is a widely used drug to cure angina pectoris and myocardial infarct for its high<br />

affinity and less side effect. It can modulate the differentiation of the cells, canceration and<br />

reversion, as well as many other bio-physical processes. Thus, the demand for this compound has<br />

been growing dramatically in the international market. Herein, we presented the improved method<br />

for the industrial scale preparation for cAMP.<br />

Treatment of adenosine (1) with phosphoryl trichloride (POCl3) in fresh distilled triethyl<br />

phosphate at -5 o C for 2 hours afforded the key intermediate adenosine 5´-dichlorophosphate (2).<br />

After adding ethyl acetate to the reaction mixture under stirring, we found that 2 precipitated from<br />

the solution. To dissolve 2 in triethyl phosphate and add 0.04mol/L KOH aqueous and acetonitrile,<br />

then neutralise it by 2mol/L HCl at 0 o C achieved 3 in 60% overall yield and more than 99% purity<br />

after filtrating and recrystallization. The melting point and other spectra (IR, 1 H-NMR, 13 C-NMR,<br />

31 P-NMR) were in accord with the standard sample. The advantage of this method included its low<br />

cost, avoiding column chromatography, and the product could be prepared with moderate yield<br />

together with high purity.<br />

HO<br />

O<br />

N<br />

N<br />

NH 2<br />

N<br />

N<br />

POCl 3<br />

-5℃, 2h<br />

Cl<br />

O<br />

P<br />

Cl<br />

O<br />

O<br />

357<br />

N<br />

N<br />

NH 2<br />

N<br />

N<br />

KOH/CH3CN 0℃<br />

OH OH<br />

OH OH<br />

O P O OH<br />

1 2<br />

OH<br />

3<br />

Reference<br />

[1] R. Keith Borden, Michael Smith, J. Org. Chem., 1966, 31: 3247-3258.<br />

[2] Taguchi Y, Mushika Y, Bull. Chem. Soc. Jpn., 1957, 48: 1528-1532.<br />

[3] Genieser K, Yoshikawa M, Synthesis, 1989, 1: 53-54.<br />

[4] Kusashio K, Yoshikawa Y, Bull. Chem. Soc. Jpn., 1968, 41:142-149.<br />

Project supported by the National Natural Science Foundation of China (No. 20372018).<br />

O<br />

O<br />

N<br />

N<br />

NH 2<br />

N<br />

N


P-122<br />

SYNTHESIS AND HERBICIDAL ACTIVITY OF Α- [2-( FLUORO-SUBSTITUTED<br />

PHEMOXY)-PROPIONYLOXY] ALKYLPHOSPHONATES<br />

Yan-Jun Li Hong-Wu He*<br />

Key Laboratory of Pesticide & ChemicaBiology of Ministry of Education, Central China Normal UniversitWuhan<br />

430079, People’s Republic of China, *Corresponding author<br />

E-mail: hel208@mail.ccnu.edu.cn.<br />

The title compound was synthesized by the reaction of O,O-dimethyl 1-hydroxyalkyl<br />

phosphonate with 2-(fluoro-substituted phenoxy)propionyl chloride according to a literature<br />

procedure. O,O-dimethyl 1-hydroxyalkylphosphonate can be obtained by the reaction of dimethyl<br />

phosphite with several kinds of aldehydes using potassium fluoride and alumina (mass ratio was 1:1)<br />

as catalyst with yield of 56-88%. The synthesis of the title compounds could be completed with<br />

yield of 20-70% using triethylamine as catalyst and trap of acid . Structures of the 8 compounds<br />

were confirmed by 1 HNMR, IR, MS spectra and element analysis. The results of preliminary<br />

bioassay indicated that the title compounds exhibite better herbicidal activities.<br />

X<br />

Y<br />

1) NaOH<br />

2) HCl<br />

OH<br />

BrCH(CH 3)COOEt<br />

K 2CO 3<br />

358<br />

X<br />

Y<br />

OCHCOOEt<br />

CH 3<br />

X<br />

1) SOCl2 OCHCOOH<br />

Y 2) (CH3O) 2POCH(OH)R<br />

CH3 II<br />

I<br />

H 3CO<br />

H 3CO<br />

O<br />

O<br />

PCHOCCHO<br />

R<br />

CH 3<br />

III<br />

R=CH3,CCl3,4-CH3-Ph,4-F-Ph X,Y=2-F-H ,2-Cl-4-F<br />

Acknowledgments<br />

Financial support by National Basic Research Program of China (2003CB114400) and NNSFof<br />

China ( 20372023)<br />

References<br />

[1] He, H.-W.. Chin. Chem. Lett. 9, 415–416(1998).<br />

[2] He, H.-W.. Chin. J. Org. Chem. 23, 155–161 (2003).<br />

[3] Brayer Jean Lowis, Taliani Laurent, Tessier Jean. EP376819, 1990<br />

[4] Bleaker Springs, Paul Healbe. J.Org. Chem.,14(7),1165(1976)<br />

[5] Francoise Fexier-Bullet, Maryvonne Lequitte. Tetrahedron Lett.27(30),3515-3516(1986)<br />

X<br />

Y


P-126<br />

SYNTHESIS, CRYSTAL STRUCTURE AND BIOACTIVITIES OF DIMETHYL[(3,7-<br />

DICHLOROQUINOLIN-8-YL CARBONYLOXY) ALKYL] PHOSPHONATE<br />

Ying Liang Ya-Zhou Wang Hong-Wu He*<br />

Key Laboratory of Pesticide & Chemical Biology of Ministry of Education,Central China Normal University, Wuhan<br />

430079, People’s Republic of China. *E-mail: hel208@mail.ccnu.edu.cn<br />

3,7-dichloroquinolin-8-ylcarbonyloxy alkylphosphonate was synthesized by the reaction of<br />

3,7-dichloroquinoline-8-carbonyl chloride with O,O-Dimethyl-1-hydroxy alkyl phosphonates. The<br />

preparation of title compounds could be completed with good yields of 60-80%, by adding<br />

triethylamine(1.2 equiv) as catalyst and trap of acid. The best reaction time was 2-5 hours and the<br />

temperature was 2-15℃. All 14 compounds were confirmed by 1 HNMR, IR, MS spectra and<br />

element analysis. One of them was examined by the single crystal X-ray diffraction. The results of<br />

preliminary bioassay indicated that the title compounds exhibited a little better fungicidal activities<br />

than the starting compounds.<br />

Cl<br />

COCl<br />

N<br />

Cl<br />

O<br />

HC<br />

(CH3O) 2P<br />

R<br />

OH<br />

359<br />

CHCl 3<br />

Cl<br />

Cl O<br />

N<br />

O H C<br />

R<br />

R=H, alkyl, Ph, substituted Ph, Furyl.<br />

P OMe<br />

O<br />

OMe<br />

Acknowledgments<br />

This work was supported by the National Basic Research Program of China (No: 2003CB114400)<br />

and the National Natural Science Foundation of China (No: 20372023).


P-128<br />

THE INFLUENTIAL FACTOR ON SYNTHESIS OF L-PHE OLIGO-PEPTIDES<br />

MEDIATED BY POCl3<br />

Yingyan Yao 1 , Li Ma 1 , Kui Lu* 1 , Yufen Zhao 2<br />

1.School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450052, China;<br />

2.Department of Chemistry, Xiamen University, Xiamen 361005, China<br />

Phosphorus play vital roles in the chemical evolution of life, The recent years, Self-assembly into<br />

peptides for amino acids Mediated by inorganic phosphorus has become a focus of science research<br />

[1,2] In this paper, the reactions of self-assembly into oligo-peptides for L-Phe mediated by<br />

inorganic phosphorus were studied. To find the best experimental condition, the solvent, reaction<br />

time, reaction temperature, the molar ratio of L-Phe and POCl3 were examined. These results were<br />

found: the maximum length of peptides for L-Phe could reach hexapeptide, but time affected little<br />

the reaction of self-assembly into oligo-peptides for L-Phe; The percent conversion of L-Phe in<br />

THF was higher than that in 1,4-dioxane or acetonitrile, so THF was propitious to self-assembly<br />

into peptides for L-Phe; Hoisting temperature could also speed the reaction and facilitate to produce<br />

phosphoryl peptides, but too high(>50 ) would induce many ℃ side reactions; The reaction of<br />

self-assembly into oligo-peptides would be speeded by increasing initial concentration of L-Phe. In<br />

a word, the proper condition of direct synthesis was the molar ratio of L-Phe and POCl3 of 1 to 1,<br />

reaction temperature of 40℃, reaction time of 2h and in THF as solvent. A series of mass peaks<br />

corresponding to oligo-peptides of L-Phe were observed by electrospray ionization mass<br />

spectrometry (ESI-MS).<br />

Acknowledgements: The authors would like to thank the financial supports from the Chinese<br />

National Science Foundation (No.20272055, 20572016), Henan Province Science Foundation for<br />

Prominent Youth (No.0312000900) and Office of Education of Henan Province (No.<br />

2006KYCX017, 200510459015).<br />

360


References:<br />

1 Lu, K.; Liu, Y.; Zhou, N.; Chen, Y.; Feng, Y.-P. ; Guo, X.-F.; Chen, W.; Qu, L.-B.; Zhao, Y.-F. Acta Chim. Sinica<br />

2002, 60 , 372 (in Chinese).<br />

2 Zhou, N.; Lu, K.; Liu, Y.; Chen, Y.; Tang, G.; Cao, S.-X.; Qu, L.-B.; Zhao, Y.-F. Rapid Commun Mass Sp 2002,16<br />

(8) , 790<br />

361


P-131<br />

LONG-PERSISTENT FLUORESCENT FILMS OF EUROPIUM AND DYSPROSIUM<br />

CO-DOPED ALUMINATES<br />

Yuan Ming Huang, Fu-fang Zhou<br />

Department of Applied Physics, Shantou University, Guangdong 515063, China<br />

Flexible and long-persistent fluorescent thin films were obtained by casting polystyrene and<br />

epoxy with fine particles of long persistent phosphorus aluminates, which were prepared by<br />

combustion rare-earth dopants europium and dysprosium with aluminates at 600-800 o C. X-ray<br />

diffraction and photospectrometer were employed to characterize the structures and optical<br />

properties of the phosphorus aluminates in the flexible thin films. The flexibility of the thin films<br />

was tested for the thin films with various compositions of the phosphorus aluminates, and the<br />

effects of the two rare-earth dopants on the optical properties were also investigated. Based on the<br />

excitation and emission spectra of the thin films, the mechanisms of the long-persistent fluorescence<br />

were discussed. Our results have demonstrated that these phosphor-embedded flexible films can be<br />

used as flexible and foldable phosphorus screens.<br />

P-133<br />

AB INITIO STUDY ON THE TOXICITY OF ORGANIC<br />

PHOSPHORUS AGROCHEMICAL<br />

Zhang Yu<br />

College of Chemistry, Baotou Teacher’s College, Inner Mongolia<br />

University of Science and Technology, Baotou 014030, China. E-mail: btzhangyu@yahoo.com.cn<br />

Some organic phosphorus agrochemical have been studied with ab initio method. The bond<br />

length and toxicity of the phosphorus compound present positive related that between the<br />

phosphorus atom and the atom of the main functional group connect with each other. The total<br />

atomic charge of the phosphorus atom and toxicity of the organic phosphorus agrochemical present<br />

negative related.<br />

Refrences<br />

[1] Xu,Y.M.;Zheng,N. The domestic agrochemical application manual, Peking:Chinese agriculture original publisher<br />

1990,4-51<br />

[2] ChemHandbook3.0, Electronics version<br />

362


P-136<br />

PATTERN OF SEDIMENT PHOSPHORUS FRACTIONS IN A SHALLOW<br />

WULIANGSUHAI LAKE, CHINA: EFFECTS OF MACROPHYTES<br />

Zhenying Liu 1 , Zhaohui Jin 1 , Yawei Li 2 , Tielong Li 1 , Jiujun Gu 1 , Si Gao 1 , Xiaoyu Chai 1<br />

1<br />

College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China;<br />

2<br />

Inner Mongolia Environment Protection Bureau, Hohhot 010018, China<br />

Sediment phosphorus fractions and profile distribution at submerged macrophyte growth zone,<br />

emergent macrophyte growth zone and open-water zone were studied in Wuliangsuhai Lake, China,<br />

as well as the correlations among water content, grain size, and organic matter and P fractions.<br />

Among three surveyed zones, the highest concentrations of most P forms occurred in the surface<br />

sediment and the lowest between a depth of 12 and 22 cm, except HCl-P and NaOH-P. Sediment<br />

phosphorus is mainly associated to inorganic forms (> 50%) in three surveyed areas, and the highest<br />

value of IP in the surface sediment was obtained from submerged macrophyte growth zone.<br />

Submerged and emergent macrophytes increased IP content by 107μg/g and 44μg/g in surface<br />

sediment compared with open-water zone, respectively. Vertical profiles of IP in three surveyed<br />

zones showed that the concentrations decreased from surface to12 cm depth and then increased.<br />

There was a similar trend in the sediment profiles of OP and TP, but the highest concentration of<br />

OP and TP in surface sediment was got from emergent macrophyte growth zone. Compared with<br />

open-water zone, emergent macrophyte increased TP content by 455μg/g in surface sediment, while<br />

submerged macrophyte enhanced TP content by 103μg/g in surface sediment. It was observed that<br />

in macrophyte growth zones a strong linear correlation existed between organic matter and OP<br />

(r>0.98), and the maximum concentrations of OP were present in the areas with maximum<br />

concentrations of organic matter. Results show that, although rooted macrophyte could uptake<br />

directly P from sediments, it is responsible for increasing internal P loading especially OP by<br />

reducing current velocities, attenuating wave energy and generating organic residue in<br />

Wuliangsuhai Lake.<br />

Key words: phosphorus fractions, profile distribution, emergent macrophyte, submerged<br />

macrophyte, open-water<br />

363


P-166<br />

NEW FUNCTIONALIZED PHOSPHORYL MEMBRANE CARRIERS OF ORGANIC AND<br />

NONORGANIC SUBSTRATES<br />

Krasnova N.S., Garifzyanov A.R., Cherkasov R.A.<br />

Kazan State University, A.M. Butlerov Chemistry Institute, 420008, Kremlevskaya str. 18, Kazan, Russia<br />

The methods of liquid and membrane extraction play the important role in technological<br />

processes, connected with concentration and selective separating of mineral, organic and biological<br />

substrates.<br />

Functionalized derivatives of four-coordinated phosphorus such as trioctylphosphineoxide,<br />

tributylphosphate and aminophosphoryl compounds were recommended as good membrane carriers.<br />

The purpose of work presented was the study the influence of structure of phosphoryl compounds<br />

on their membrane-transport properties.<br />

With this aim the series of compounds R2P(O)R’, where R=2-EtHexO, R’=NBu2 (I),<br />

R=2-EtHexO, R’=NEt2 (II), R=2-EtHexO, R’=NHBu (III), R=2-EtHexO, R’=NH(CH2)2NEt2 (IV),<br />

R=Oct, R’= NBu2 (V), R=DecO, R’=CH2NBu2 (VI), 2-EtHexO, R’=O(CH2)2NEt2 (VII), 2-EtHexO,<br />

R’=O(CH2)2NBu2 (VIII), have been synthesized. We have taken the sterically hindered substituents<br />

to make sure the high lipophilycity of membrane carriers.<br />

The compounds received differ with the dentaticity of the potential interaction with the substrates<br />

being carried as well as with the basicity of phosphoryl group. Perchloric, tartaric and oxalic acids<br />

have been chosen as substrates in this investigation. They are differ from each other by dissociation<br />

degree and by the number of potential linkage centers. Monoethanolamine also has been chosen as<br />

hidrofilic substrate wich is able to display both basic and proton-donating properties.<br />

It is established that values of streams fall back in ranks VI>V>VII>VIII>IV>III>I≈II (perchloric<br />

acid), VII>VI>V>I≈II>III (tartaric acid), V>VII>II>I≈IV>III>VI (oxalic acil),<br />

VII>V>VI>VIII>II≈I≈III≈IV (monoethanolamine).<br />

We revealed that the efficiency of the membrane transport growth parallel to both the increasing<br />

of the phosphoryl unit bacisity and the participation of the additional coordination center in the<br />

carrier-molecule.<br />

The work was realized under financial support of RFBR (grant № 04-03-32906).<br />

364


P-173<br />

HIGH THROUGHPUT SCREENING UNDER Zinc-DATABASE AND SYNTHESIS A<br />

DIALKYLPHOSPHINIC ACID AS A POTENTIAL KARI INHIBITOR<br />

Liu Xinghai, Chen Peiquan, Guo Wancheng, Wang Suhua, Li Zhengming*<br />

(The Research Institute of Elemento-Organic Chemistry, State-Key Laboratory of Elemento-Organic Chemistry, Nankai<br />

University, Tianjin 300071, P.R. China)<br />

Plants and microorganisms contain numerous enzymes that are potential targets for bioactive<br />

compounds such as herbicides. Ketol-acid reductoisomerase (KARI) is the second key enzymes<br />

involved the biosynthesis of the branched-chain amino acids: leucine, isoleucine and valine [1] . Our<br />

research wants to discover new herbicides. In the past research, we discover a new sulfonylureas<br />

herbicide — monosulfonylureas [2] .<br />

Today, throughput screening HTS is a novel technique system in pesticide innovation with the<br />

virtue of high efficiency, large-scale and automatics. Based on the reported crystal structure of<br />

complexes of the enzyme KARI, 200 molecules were obtained with predicted high affinity for<br />

KARI from ZINC-database(Drug-Like) searching, using program eHiTS [3] . A dialkylphosphinic<br />

acid was docked with KARI and estimated the pKi = -5.235. The interaction pattern between the<br />

titled compound and KARI was described. We synthesized the title compound. The KARI activity<br />

is under testing.<br />

The synthesized route of the title compound and the Docking result is listed in scheme 1 and<br />

figure 2 and 3.<br />

Si Cl NH3 Si Si H2POONH4 ClCH2COOCH3 HP(OSiMe)3<br />

N<br />

N(C<br />

H<br />

2H5) 3<br />

O<br />

O<br />

O<br />

O<br />

O<br />

P<br />

O Si C 2H 5OH O<br />

365<br />

O<br />

Scheme 1. The synthetic route of title compound<br />

Fig. 2 spinage KARI active site with title compound Fig.3 Superimposition of the docked<br />

conformation of title modeled into the binding pocket compound and IpOHA in complex with<br />

spinage KARI<br />

Acknowledgements<br />

O<br />

O<br />

O<br />

P<br />

OH<br />

HO<br />

HO<br />

O<br />

O<br />

O<br />

P<br />

OH


This work was funded by the National Basic Research Program of China (Grant No. 2003<br />

CB114406) and the high performance computing project of Tianjin Ministry of Science and<br />

Technology of China (grant number 043185111-5).<br />

Reference<br />

1. R.G. Duggleby, S.S. Pang, Acetohydroxyacid synthase, J. Biochem. Molec. Biol. 2000,33,1–36.<br />

2. Z.M. Li, G.F. Jia, L.X. Wang, Sulfonylurea compound herbicide, CN1106393, 1995,8,9<br />

3. http://www.simbiosys.ca/ehits/<br />

366


P-181<br />

A STUDY ON THE ORGANIC COMPOUNDS CONTAINING GERMANIUM AND<br />

PHOSPHOURS USING EI MASS SPECTROMETRY<br />

Liu Ruoyu 1 , Ye Yong 1 , Liao Xincheng 1 ,Qu Lingbo 1 , Zhao Yufen 1,2<br />

1.The Key Laboratory of Chemical Biology and Organic Chemistry of Henan Province, Department of Chemistry,<br />

Zhengzhou University, Zhengzhou 450052, China;<br />

2.The Key Laboratory for Bioorganic Phosphorus Chemistry and Chemical Biology, Ministry of Education, Department<br />

of Chemistry School of Life Sciences and Engineering, TsinghuaUniversity, Beijing 100084, China<br />

A series of organic compounds containing germanium and phosphours are studied by EI or<br />

ESI-MS. The positive or negative ions for these compounds are reported . The fragmentation<br />

pathways were investigated in details and its characteristics have been summarized. The<br />

fragmentation ions produced from EI or ESI provide complementary informatiom for the structure<br />

elucidation.<br />

References<br />

[1] Ye Yong: [Master Paper]. Tianjin. Chemistry Department of Nankai University. 1998<br />

[2] Zhu Xiaofei, Ye Yong, Zeng Qiang. Recent Advances of Anticancer Active Organic Compound Containing<br />

Phosphorus and Germanium. Tianjin Chemical Industry, 2002; 3:pp4~6<br />

367


P-189<br />

INVESTIGATION ON A HYDROXYL OXYGEN MIGRATION OF<br />

N-PHOSPHORYL DIPEPTIDES BY ELECTROSPRAY<br />

IONIZATION MASS SPECTROMETRY<br />

Huang Xiantong, Tang Guo, Lin Kan, Chen Yushen, Zhaoyufen *<br />

The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry and College of Chemistry and<br />

Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China.<br />

A novel rearrangement reaction with a hydroxyl oxygen migration was observed in the<br />

electrospray ionization tandem mass spectra of N-diisopropyloxyphosphoryl dipeptides . A possible<br />

mechanism was proposed and supported by the MS/MS study. It was found that metal ions could<br />

catalyze the rearrangement through a seven-membered ring intermediate.<br />

All peptides and their derivatives were synthesized in this laboratory by literature methods and<br />

phosphorylated according to our published methods. 1 chemicals for syntheses were purchased from<br />

Sigma (Shanghai, China)<br />

O<br />

O<br />

O<br />

O<br />

O<br />

P<br />

HN<br />

CH<br />

R1 O<br />

HN<br />

P<br />

M+Na<br />

O<br />

O<br />

O<br />

C<br />

HN<br />

Na<br />

OH<br />

R 2<br />

O<br />

368<br />

O O<br />

HN<br />

P<br />

O<br />

R 1<br />

O<br />

O<br />

HN<br />

P<br />

O<br />

R1 ONa<br />

H<br />

O<br />

C<br />

M+Na M+Na<br />

R 1<br />

O<br />

HN H<br />

P C<br />

ONa<br />

C O<br />

R 2<br />

HN<br />

-<br />

R 2<br />

OH<br />

O R 2<br />

ONa<br />

C<br />

N<br />

H<br />

OH<br />

Na<br />

M+Na<br />

Scheme1. proposed rearrangement mechanism for N-diisopropyloxyphosphoryl dipeptides<br />

Acknowledgement: the financial supports from the Ministry of Education Key Project (104201) and<br />

Fujian Key Foundation of Science and Technology (C03100)<br />

References<br />

[1] Ji GJ, Xue CB, Zeng JN, Li LP, Chai WG, Zhao YF, Synthesis 1988; 6: 444.<br />

N<br />

H<br />

O<br />

C<br />

O<br />

H 2 N<br />

R 2<br />

O<br />

R 2<br />

O


P-191<br />

INVESTIGATION ON THE PEPTIDES FORMATION FROM AMINO ACIDS REACTED<br />

WITH TRIMETAPHOSPHATE BY LC-MS<br />

Xiang Gao 1 , Yan Liu 1 , Pengxiang Xu 1 , Guo Tang, Yufen Zhao 1,2 *<br />

1. The Key Laboratory for Chemical Biology of Fujian Province, Department of Chemistry, College of Chemistry and<br />

Chemical Engineering, Xiamen University, Xiamen, 361005, P. R. China<br />

2. The Key Laboratory for Bioorganic Phosphorus Chemistry, Ministry of Education, Department of Chemistry, School<br />

of Life Sciences and Engineering, Tsinghua University, Beijing, 100084, P. R. China<br />

It was suggested that probably inorganic condensed phosphates, such as polyphosphate and<br />

trimetaphosphate, would have been the essential materials for the prebiotic evolution which<br />

preceded the emergence of life on the earth [1, 2]. In recent years, alternative methods for amino<br />

acids and small peptides analysis without derivatization have been proposed. Ion-pair<br />

chromatography and reversed-phase liquid chromatography were widely used to separate amino<br />

acids and small peptides by employing perfluorinated carboxylic acids as ion-pairing reagents on a<br />

silica based column. Furthermore, electrospray tandem mass spectrometry (ESI-MS) was an<br />

effective direct detector for analysis of underivatized amino acids and peptides due to its high<br />

sensitivity and incomparable specificity.<br />

Figure 1. The ESI-MS spectra for each amino acid treated with P3m. (A): Glycine reacted with P3m;<br />

(B): L-Alanine reacted with P3m; (C): β-Alanine reacted with P3m; (C): γ-Aminobutyric acid reacted<br />

with P3m<br />

The condensation reactions of single amino acid or each pair of amino acids such as glycine,<br />

L-alanine, β-alanine and γ-aminobutyric acid with sodium trimetaphosphate (P3m) were<br />

reinvestigated by electrospray ion-trap mass spectrometry (ESI-MS) and high performance liquid<br />

chromatography. It was found when treated by P3m only at the presence of α-amino acid did form<br />

peptide. Without α-amino acid, the β-amino acid or γ-amino acid could not form peptide either by<br />

themselves or with their mixtures under the same conditions. These experimental results might<br />

suggest that phosphate prefers choosing α-amino acids to produce the peptides for the origin of life.<br />

References<br />

[1] J. Rabinowitz, J. Flores, R. Krebsbach, G. Rogers, Nature 1969, 224: 795-796<br />

[2] Y. Yamagata, H. Watanabe, M. Saitoh, T. Namba, Nature 1991, 352: 516-519.<br />

369


Symposium 8<br />

Special Session Dedicated to the Late Professor L. Horner


KL-4<br />

OLEFINATION REACTION IN ORGANIC SULFUR CHEMISTRY AND SYNTHESIS OF<br />

NATURAL PRODUCTS<br />

Marian Mikolajczyk<br />

Center of Molecular and Macromolecular Studies, Polish Academy of Sciences 90-363 Lodz, Sienkiewicza 112, Poland<br />

371


IL-3<br />

2-HYDROXY- AND 2-AMINO-FUNCTIONAL ARYLPHOSPHINES-SYNTHESIS,<br />

REACTIVITY AND USE IN CATALYSIS<br />

J. Heinicke, a W. Wawrzyniak, a N. Peulecke, a B. R. Aluri, a P.G. Jones, b S. Enthaler, c M. Beller c<br />

EMA-University Greifswald a (Germany), Technical University Braunschweig b (Germany),<br />

Leibniz-Institute of Catalysis Rostock c (Germany)<br />

Syntheses of 2-phosphinophenoles [1] and 2-hydroxy-1,1’-biaryl-2-phosphines [2] and separation<br />

of diastereoisomeric (1S)-camphanoates of asymmetric derivatives were studied. The absolute<br />

configuration of two pure enantiomers was determined by crystal structure analysis. Other<br />

camphanoates preferred cocrystallization of different isomers in the asymmetric unit. First catalytic<br />

studies displayed ee’s up to 60%.<br />

P<br />

OSiMe3 R2<br />

R1 nBuLi<br />

SiPPOPhos-tBuMe: R1 =Me, R2 =tBu<br />

SiPPOPhos-tBupTol: R1 =tBu, R2 =p-Tol<br />

SiPPOPhos-tBuMes: R1 =tBu, R2 =Mes<br />

SiPPOPhos-An2: R1 =R2 =o-An<br />

R 1<br />

P<br />

OLi<br />

R2<br />

Cl<br />

O<br />

O<br />

O<br />

R 1<br />

372<br />

P<br />

O<br />

R2<br />

O<br />

CaPPOPhos-tBuMe: R1 =Me, R2 =tBu<br />

CaPPOPhos-tBupTol: R1 =tBu, R2 =p-Tol<br />

CaPPOPhos-tBuMes: R1 =tBu, R2 =Mes<br />

CaPPOPhos-An2: R1 =R2 =o-An<br />

N-Substituted 2-phosphinoanilines, synthesized via anilino- or anilidophosphonates, have been<br />

used in the synthesis of N-alkyl- or N-aryl-1,3-benzazaphospholes. These are particularly stable<br />

annulated heterophospholes [3]. Reaction with t-BuLi allows lithiation in 2-position without attack<br />

at the P=C bond and introduction of various functional groups. However, addition is also possible.<br />

This opens a novel access to heterocyclic ethylene-bis(phosphine) ligands.<br />

Reference<br />

[1] J. Heinicke, N. Peulecke, M. Köhler, M. He, W. Keim, J. Organomet. Chem., 2005, 690, 2449.<br />

[2] P. Wawrzyniak, PhD thesis, Greifswald, 2006.<br />

[3] R. K. Bansal, J. Heinicke, Chem. Rev. 2001, 101, 3549-3578. B.R. Aluri, unpublished.<br />

O<br />

O


IL-4<br />

ENANTIOSELECTIVE SYNTHESIS OF P-CHIROGENIC PHOSPHORUS COMPOUNDS<br />

VIA THE EPHEDRINE-BORANE COMPLEX METHODOLOGY<br />

Sylvain Juge<br />

Inst. Chim. Mol. Université de Bourgogne,UMR CNRS 5620, 9 av. A. Savary,<br />

21078 Dijon, France; Fax 33 3 80 39 60 98 Email: Sylvain.Juge@u-bourgogne.fr<br />

In spite of the pioneering work of Horner 1 and Knowles, 2 phosphines bearing chirality on the<br />

phosphorus atom have not been very used in asymmetric catalysis until now, mainly due to the<br />

difficulty of their stereoselective preparation. Nevertheless, in the recent past, significant progresses<br />

have been realized for the P-chirogenic compounds, likewise owing to the ephedrine-borane<br />

methodology. 3<br />

BH 3<br />

Ph<br />

P<br />

Ph<br />

O Me<br />

N<br />

Me<br />

2<br />

(+)-ephedrine<br />

1<br />

R 1 Li<br />

BH 3<br />

R P<br />

Ph<br />

3<br />

1<br />

N<br />

Me<br />

OH<br />

Me Ph<br />

P R<br />

Ph<br />

1<br />

HX<br />

X<br />

4<br />

tBuLi<br />

The principle of this method is based on two key step:<br />

- the diastereoelective preparation of an oxazaphospholidine borane complex 2 derived from<br />

(+)-ephedrine 1, in one step.<br />

- the regio and stereoselective P-O bond cleavage by reaction with an organolithium reagent to<br />

afford the aminophosphine borane 3.<br />

The acidolysis or the methanolysis of the compound 3 affords then the corresponding<br />

P-chirogenic chlorophosphine boranes 4 (X=Cl) or phosphinite boranes 4 (X=OMe) respectively,<br />

which are used as P-chirogenic electrophilic building blocks. Recently, a new development was<br />

showed, with the preparation of the phosphide boranes 5 by metal-halide exchange starting from the<br />

chlorophosphine boranes 4, affording thus useful P-chirogenic nucleophilic building blocks.<br />

The efficiency of this methodology is demonstrated by the possibility of preparing various<br />

kinds of phosphorus compounds in high e.e. bearing the chirality on phosphorus atom (bulky or<br />

functionnalized phosphines, secondary phosphines, phosphinites, aminophosphines...). Moreover,<br />

as the purification of free phosphorus trivalent compounds is not always possible, the direct use of<br />

their borane complexes for the synthesis or the catalysis, is a useful alternative. Thus, phosphonium<br />

salts, phosphorylated (P=O) or thiophosphorylated (P=S) derivatives, could be stereoselectively<br />

prepared from borane complexes without isolation of the P (III) intermediate. In the same way, the<br />

organophosphorus borane complexes give also the opportunity to use unstable ligands in<br />

coordination chemistry or to generate catalysts.<br />

References<br />

1) L. Horner, H. Siegel, H. Büthe Angew. Chem. Int. Ed. 1968, 942.<br />

373<br />

BH 3<br />

Li<br />

BH 3<br />

P<br />

5<br />

R<br />

Ph<br />

1


2) W.S. Knowles, M.J. Sabacky J.C.S. Chem. Commun. 1968, 1445.<br />

3) a) Moulin, D.; Bago, S.; Bauduin, C.; Darcel, C.; Jugé, S. Tetrahedron: Asymmetry 2000, 11, 3939. b) C. Darcel, El<br />

B. Kaloun, R. Merdès, D. Moulin, N. Riegel, S. Thorimbert, J. P. Genêt, S. Jugé J. Organomet. Chem., 2001, 624, 333.<br />

c) S. Humbel, C. Bertrand, C. Darcel, C. Bauduin, S. Jugé Inorg. Chem. 2003, 42, 420. e) J.M. Camus, J. Andrieu, P.<br />

Richard, R. Poli, C. Darcel, S. Jugé Tetrahedron: Asymmetry 2004, 15, 2061. f) C. Bauduin, D. Moulin, El B. Kaloun,<br />

C. Darcel, S. Jugé J. Org. Chem. 2003, 11, 4293. g) C. Darcel, D. Moulin, J.C. Henry, M. Lagrelette, P. Richard, P.<br />

Harvey, S. Jugé Eur. J. Org. Chem. 2007, in press.<br />

374


IL-5<br />

UMPOLUNG IN HORNER REACTION: PHOSPHORAMIDATES AS A SOURCE OF<br />

P-CHIRAL ORGANOPHOSPHATES<br />

Wojciech Jacek Stec and Janina Baraniak<br />

Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences,<br />

112 Sienkiewicza Str., 90-363 Łódź, Poland<br />

The discovery that organophosphorus ylides and phosphonate anions ract with carbonyl<br />

electrophiles leading to olefins had an enormous impact on the art of organic synthesis. Although<br />

similar reactions of numerous phosphoramidate anions have been also studied, interest in the<br />

synthesis of unsaturated C=N systems has overshadowed interest in the fate of the second product<br />

of the Horner-Wadsworth-Emmons reaction, namely, dialkyl (diaryl) phosphates or<br />

phosphorothioates.<br />

However, the growing interest in the stereospecific synthesis of P-chiral organophosphates and<br />

phosphorothioates, and especially the demonstration of the use of phosphorothioates as tools for<br />

investigating the mode of action of numerous phosphoryl transfer catalyzing enzymes, focused the<br />

attention of several research groups on methods for the stereospecific preparation of P-chiral<br />

phosphates and phosphorothioates. In this laboratory studies were undertaken on the application of<br />

the Horner-Wadsworth-Emmons reaction using covalent diastereomeric phosphoramidates for the<br />

preparation of enantiomeric organophosphates, organophosphorothioates, and organophosphoroselenoates.<br />

Special attention was focused upon the stereochemical consequences of this reaction,<br />

also called by the authors PN→PX conversion (X= S, Se, O) [1]<br />

It turned out that the development of our synthetic approach involving the preparation of P-chiral<br />

phosphoramidates followed by the replacement of an amidate function by oxygen, sulfur, or<br />

selenium, opened the way to the stereospecific preparation of a variety of P-chiral derivatives of<br />

phosphorus acids, including numerous biophosphates and their analogues [2]<br />

Application of title reaction for the preparation of diastereomerically pure P-chiral cyclic<br />

nucleotide analogues (phosphorothioates, phosphoroselenoates, phosphoroselenothioates,<br />

isotopomeric 18O-phosphates), and P-chiral nucleoside monophosphate analogues, as well as<br />

dinucleoside phosphate analogues (phosphorothioates, methanephosphonates and their thio- and<br />

seleno-congeners) will be presented.<br />

Reference<br />

[1].W. J. Stec: Wadsworth-Emmons Reaction Revisited. Acc. Chem. Res., 1983, 16, 411<br />

[2].L. A. Woźniak and A. Okruszek: The stereospecific syntheses of P-chiral biophosphates and their analogs by the<br />

Stec reaction. Chem. Soc. Rev. 2003, 32, 158-169.<br />

375


IL-6<br />

SYNTHESIS AND APPLICATIONS OF PHOSPHONATES PREPARED FROM<br />

ELECTROPHILIC PHOSPHORUS REAGENTS<br />

David F. Wiemer<br />

Department of Chemistry, University of Iowa, Iowa City, IA 52242, USA . E-mail: david-wiemer@uiowa.edu<br />

Classical methods for synthesis of β-keto phosphonates and α-phosphono esters and lactones rely<br />

upon phosphorus nucleophiles for formation of the carbon-phosphorus bonds. To complement these<br />

traditional strategies, and provide access to novel phosphonates not readily available via these<br />

methods, we have explored approaches that employ phosphorus electrophiles and carbon<br />

nucleophiles. For example, P(V) electrophiles react with enolates derived from cyclic ketones to<br />

afford the vinyl phosphates, but in some cases the cyclic vinyl phosphates will rearrange to β-keto<br />

phosphonates upon reaction with excess strong base. Enolates derived from lactones and some<br />

esters undergo parallel reactions. In contrast, P(III) electrophiles can react with enolates directly at<br />

the carbon terminus, and subsequent oxidation will afford the β-keto phosphonate or α-phosphono<br />

esters/lactones. Variations on these strategies have been used to provide a variety of synthetic<br />

intermediates for use in reactions like the Horner-Wadsworth-Emmons condensation, as well as to<br />

prepare phosphonate analogues of natural phosphates. The preparation of specific target compounds<br />

as well as some further applications of these phosphonates will be presented.<br />

376


IL-7<br />

DEVELOPMENT OF NOVEL CHIRAL PHOSPHORUS LIGANDS FOR<br />

ENANTIOSELECTIVE HOMOGENEOUS AND HETEROGENEOUS CATALYSIS<br />

Kuiling Ding<br />

State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of<br />

Sciences, 354 Fenglin Road, Shanghai 200032 Fax: +86-21-6416-6128. E-mail: kding@mail.sioc.ac.cn<br />

Development of practical protocols for asymmetric synthesis of optically active compounds<br />

represents a great challenge in the area of chiral chemistry, in which the efficiency and the recycle<br />

of the chiral catalysts are key issues. Two strategies for the development of practical asymmetric<br />

catalysis will be discussed in this presentation. The first part of this presentation will focus on the<br />

design, synthesis and application of chiral catalysts composed of phosphorous ligands for<br />

homogeneous asymmetric reactions. [1]<br />

RO 2C<br />

CO 2R<br />

O<br />

R<br />

N<br />

N<br />

O<br />

O<br />

377<br />

R'<br />

P N<br />

R'<br />

Ar2P PAr2 R<br />

Y O X<br />

DICP DpenPhos<br />

CydamPhos<br />

up to 99% yield and >98.9% ee<br />

for Pd-catalyzed allylic substitution<br />

up to 99% yield and >99% ee<br />

for Rh(I)-catalyzed hydrogenations<br />

up to 99% yield and >99% ee<br />

for Rh(I)-catalyzed hydrogenation<br />

Y<br />

N<br />

N<br />

O<br />

X<br />

O<br />

O<br />

Z<br />

P N<br />

Z<br />

The second part will present a conceptually new strategy, i.e. “self-supporting” approach, for<br />

the immobilization of homogeneous catalysts through self-assembly of chiral multi-topic ligands<br />

and metal ions without using any support. The success of this strategy will be demonstrated in<br />

heterogeneous asymmetric hydrogenation reactions of functionalized olefins and ketones using<br />

self-supported chiral phosphorous ligand/metal catalysts. [2]<br />

+<br />

+ +<br />

multitopic chiral<br />

phosphorous ligands<br />

metallic ion<br />

n<br />

self-supported catalysts<br />

References<br />

[1] (a) Zhao, D.; Ding, K. Org . Lett. 2003, 5, 1349-1351. (b) Zhao, D.; Sun, J.; Ding, K. Chem. Eur. J. 2004, 10,<br />

5952-5963. (c) Zhao, D.; Wang, Z.; Ding, K. Synlett. 2005, 2067-2071. (d) Zhao, B.; Wang, Z.; Ding, K. Adv. Synth. Cat.<br />

2006, 348, 1049-1057. (e) Jing, Q.; Sandoval, C. A.; Wang, Z,; Ding, K. Eur. J. Org. Chem. 2006, 3606-3616. (f) Jing,<br />

n


Q.; Zhang, X.; Sun, J.; Ding, K. Adv. Synth. Cat. 2005, 347, 1193-1197. (g) Liu, Y.; Ding, K. J. Am. Chem. Soc. 2005,<br />

127, 10488-10499. (h) Liu, Y.; Sandoval, C. A.; Yamaguchi, Y.; Zhang, X.; Wang, Z.; Kato, K.; Ding, K. J. Am. Chem.<br />

Soc. 2006, 128, 14212 - 14213.<br />

[2] (a) Wang, X.; Ding, K. J. Am. Chem. Soc. 2004, 126, 10524-10525. (b) Liang, Y.; Jing, Q.; Li, X.; Shi, L.; Ding, K.<br />

J. Am. Chem. Soc. 2005, 127, 127, 7694-7695. (c) Liang, Y.; Wang, Z.; Ding, K. Adv. Synth. Cat. 2006, 348, 1533-1538.<br />

(d) Shi, L.; Wang, X.; Sandoval, C. A.; Li, M.; Qi, Q.; Li, Z.; Ding, K. Angew. Chem. Int. Ed. 2006, 45, 4108-4112. (e)<br />

Ding, K.; Wang, Z.; Wang, X.; Liang, Y.; Wang, X. Chem. Eur. J. 2006, 12, 5188-5197.<br />

Acknowledgement: I am grateful to the National Natural Science Foundation of China, the Major Basic Research<br />

Development Program of China (Grant no. 2006CB806106), and CAS for financial support of this work.<br />

378


O-34<br />

CHIRAL PHOSPHORUS-CONTAINED CALIXARENES<br />

S.O.Cherenok, V.I.Boiko, V.I.Kalchenko<br />

Institute of Organic Chemistry, Natl. Acad. of Sci. of Ukraine, 02660, Kyiv-94, Ukraine. E-mail: vik@bpci.kiev.ua<br />

www.ioch.kiev.ua/calix<br />

Macrocyclic compounds are ubiquitous as synthetic receptors in bio-organic and supramolecular<br />

chemistry. Incorporation of phosphorus-containing binding groups on the macrocyclic platform<br />

enable supramolecular interactions to be defined a priori, having broad ramifications for chemistry,<br />

physics, biology and material science. This paper presents synthesis and functional properties of<br />

phosphorus-containing chiral calixarenes having three-dimensional molecular cavities, within the<br />

context of molecular recognition and bio-activity.<br />

Two types of phosphorus-containing chiral calixarenes are discussed. They are: (i) calixarenes<br />

that have chirality induced by the asymmetric placement of achiral (or chiral) substituents at the<br />

upper or lower rim of the macrocycle [1,2] , and (ii) compounds functionalized by chiral<br />

substituents [3,4] .<br />

Calix[4]arene bis-α-hydroxyphosphonic acids as pure Meso and Racemic forms were synthesized<br />

through the reactions of diformylcalixarenes with thrialkylphosphites or sodium dialkylphosphites [4] .<br />

Chiral calix[4]arene α-aminophosphonic acids were obtained through the diastereoselective<br />

Pudovik-type addition of sodium diethylphosphites to the chiral calixarene imines [4] .<br />

NR<br />

X<br />

Y X Y<br />

RHN<br />

*<br />

R = CH(Ph)CH3 ( -)(S)<br />

R = CH(Ph)CH *<br />

3 (+)(R)<br />

(EtO) 2P(O)H Na<br />

EtO<br />

EtO<br />

R<br />

O<br />

P<br />

H<br />

N<br />

X<br />

Y X Y<br />

N<br />

H<br />

*<br />

*<br />

(SR, RS)<br />

(RS, SR)<br />

R<br />

OEt<br />

P<br />

OEt<br />

O<br />

H 2<br />

Pd(C)<br />

379<br />

EtO<br />

EtO<br />

X = OH, Y= OPr<br />

N<br />

H 2<br />

O<br />

O<br />

P *<br />

NH2 HO<br />

HO<br />

P *<br />

X<br />

Y X Y<br />

*<br />

(R, R)<br />

(S, S)<br />

OEt<br />

P<br />

OEt<br />

O<br />

1. Me3SiBr 2. MeOH<br />

N<br />

H 2<br />

X<br />

Y X Y<br />

A difference in the host-guest complexation parameters of aminoacids or dipeptides with<br />

Racemic and Meso forms of cailxarene bis-hydroxyphosphonic acid is observed [3] . The calixarene<br />

aminophosphonic acids show inhibitory activity toward porcine kidney alkaline phosphatase that<br />

strongly depends on the absolute configuration of the α-carbon atoms [4] .<br />

References<br />

[1] Tairov M.A., Vysotsky M.O., Kalchenko O.I., Pirozhenko V.V., Kalchenko V.I. J. Chem. Soc. Perkin Trans. 1. 2002.<br />

1405-1411.<br />

[2] Boyko V.I., Shivanyuk A., Pyrozhenko V.V., Zubatyk R.I., Shishkin O.V., Kalchenko V.I. Tetrahedron Letters. 2006.<br />

47. 7775-7778.<br />

[3] Zielenkiewicz W., Marcinowicz A., Cherenok S., Kalchenko V., Poznański J.. Supramolecular Chemistry. 2006.<br />

18. 167-176.<br />

[4] Cherenok S., Vovk A., Muravyova I., Shivanyuk A., Kukhar V., Lipkowski J., Kalchenko V. Organic Letters.<br />

2006. 8. 549-5<br />

*<br />

(R, R)<br />

(S, S)<br />

NH 2<br />

OH<br />

P<br />

OH<br />

O


AUTHOR INDEX


A<br />

Abdrakhmanova, L. M. 40<br />

Adachi, Kazutaka 113<br />

Adam, M. S. S. 155<br />

Agou, Tomohiro 24<br />

Ahn Vu, Erika Shaffer 30<br />

Aladzheva, Inga M. 62<br />

Aleksandrova, Anastasia V. 14,111<br />

Aleksanyan, D. V. 87<br />

Alfonsov, Vladimir A. 41, 70, 75,78, 90, 352<br />

Allen, Christopher W. 167<br />

Aluri, B. R. 155, 372<br />

Amerkhanova, N. K. 179<br />

Angermann, J. 282<br />

Antipina, M. Yu. 291<br />

Arduengo, Anthony J. 161<br />

Armentano, Maria Francesca 189<br />

Artemkina, I. M. 165<br />

Artyushin, O. I. 20,291<br />

Asai, Kazuhide 43<br />

Ashkenazi, Nissan 39<br />

Auclair, M. L. 118,119<br />

Ausín, Cristina 190<br />

Au-yeung, Steve C. F. 236<br />

B<br />

Babashkina, Maria G. 149<br />

Badeeva, E. K. 178<br />

Bagautdinova, R. Kh. 6<br />

Baier, I. 47<br />

Bala, Joy Lynn F. 302<br />

Balassa, Annamária 143<br />

Balueva, A. S. 146, 166<br />

Bao, Rui 293, 294,338, 349<br />

Baraniak, Janina 186, 375<br />

Baranov, S. V. 142<br />

Barnett, B. L. 259, 278<br />

Barten, Jan 28<br />

Batra, Vinod K. 222<br />

Batyeva, Elvira S. 178, 352<br />

Bauduin, C. 156<br />

Bayandina, Еvgenia V. 90<br />

Bayardon, J. 228<br />

Beard, William A. 222<br />

Beasley, Duane 276<br />

Beaton, Sarah K. D. 50<br />

Beaucage, Serge L. 190<br />

381<br />

Belaj, Ferdinand 54<br />

Beller, M. 372<br />

Bendikov, Michael 39<br />

Berdnik, I. V. 61<br />

Berdnikov, E. A. 114<br />

Bergsträßer, H. 136<br />

Berlicki, Łukasz 279<br />

Beylis, Irena 67<br />

Bezgubenko, L. V. 83<br />

Bilge, Selen 13<br />

Blackburn, G. Micheal 2<br />

Blann, Kevin 329<br />

Bod, Henriette de 329<br />

Bódis, Ádám 44<br />

Bogdanov, A. V. 22, 49<br />

Boiko, V. I. 379<br />

Bontemps, S. 130<br />

Borisova, Yu. Yu. 179<br />

Bouhadir, G. 130<br />

Bourissou, D. 130<br />

Bozkurt, S. 112<br />

Breuer, Eli 67, 271<br />

Brunet, Ernesto 331<br />

Bruzik, Karol 194<br />

Brzezińska Rodak,<br />

Małgorzata<br />

19, 27<br />

Budnikova, Yu. H. 61, 177, 321<br />

Burck, S. 247<br />

Burel, Laure 274, 292, 301<br />

Burilo, A. R. 18, 47<br />

Burkov, K. A. 244<br />

Burnaeva, L. A. 35<br />

Burnaeva, L. M. 40, 179<br />

Buzykin, B. I. 49<br />

Bykhovskaya, Olga V. 62<br />

C<br />

Cai, Fei 73,171<br />

Cai, Puqin 307, 309<br />

Calichman, Michael 167<br />

Cao, L. H. 273<br />

Cao, Lifeng 298<br />

Cao, Shuxia<br />

68, 102, 207, 229, 347,<br />

351<br />

Cao, Weina 91, 212, 217<br />

Capon, J. F. 148<br />

Caporali, Maria 170<br />

Carlos, Juan 331<br />

Cartier, Dominique 274<br />

Caruthers, Marvin H. 188<br />

Chachkov, D. V. 99, 242


Chai, Xiaoyu 363<br />

Chandra, Richard 327<br />

Chandrasekaran, A. 159<br />

Chattopadhyaya, Jyoti 268<br />

Chen, Caibao 97<br />

Chen, Guanhua 238<br />

Chen, Gui 131<br />

Chen, Li 185<br />

Chen, Peiquan 365<br />

Chen, Ruyu 16, 108, 206, 269, 336<br />

Chen, Weizhu 232, 308<br />

Chen, Xiaobao 353<br />

Chen, Xiaolan<br />

72, 82, 106, 202, 204, 224,<br />

258, 302<br />

Chen, Yan 100<br />

Chen, Yushen 368<br />

Chen, Zhao 338, 349<br />

Cheng, Fang 310<br />

Cheng, Hisn-Mei 245<br />

Cheong, Yuenki 94, 107<br />

Cherenok, S. O. 214, 284, 379<br />

Cherkasov, Rafael A. 35, 60, 114, 115, 140, 142,<br />

149, 254, 295, 364<br />

Cherkin, K. Yu. 21<br />

Chernega, Aleksandr N. 120<br />

Chmutova, G. A. 75<br />

Chu, Sanyan 245<br />

Chuiko, A. L. 76, 290<br />

Clément, Jean Claude 274, 292, 301<br />

Colson, A. 228<br />

Congiardo, Laura K.<br />

Byington<br />

30<br />

Cosgrove, Nichola E. 80<br />

Cristau, Henri Jean 139<br />

Cui, Zhanwei 108, 206, 269<br />

Czernicka, Anna 277<br />

D<br />

Darcel, C. 118, 119, 156, 228<br />

Delépine, Pascal 274, 292, 301<br />

Deme, János 44<br />

Demiriz, Semsay 13<br />

Demkowicz, Sebastian 38<br />

Didkovskii, N. G. 14<br />

Dielmann, F. 173<br />

Dimukhametov, M. N. 40<br />

Ding, Kuiling 377<br />

Ding, Mingwu 283<br />

Ding, Yixiang 153<br />

Dix, I. 117<br />

Dixon, John T. 329<br />

382<br />

Dobrynin, A. B. 49, 243<br />

Dobrynin, Alexey B. 70<br />

Docherty, Gordon 326<br />

Dogadina, Alla V. 14, 111<br />

Dong, Zhenrong 131<br />

Du, Ya 73, 171<br />

Duan, Chunjian 204<br />

Duan, Haifeng 150, 152<br />

Dudás, Eszter 56<br />

Duncanson, Philip 94, 107<br />

Dunford, J. 259, 278<br />

Durova, Oxana 189<br />

E<br />

Ebetino, F. H. 259, 278<br />

Ekici, S. 112<br />

Engelhardt, Johnnie 276<br />

Enthaler, S. 372<br />

Ermolaev, Yevgeniy S. 352<br />

Evdokimov, A. G. 259<br />

F<br />

Fang, Hua 122, 230, 257, 304, 305<br />

Fang, Meijuan 304, 305<br />

Feng, Dexin 16<br />

Feng, Yezhen 216<br />

Férec, Claude 274, 292, 301<br />

Field, Martin J. 235<br />

Floch, P. L. 129<br />

Fogassy, Elemér 44<br />

Forlani, Giuseppe 279<br />

Frant, Julia 67<br />

Freese, Dirk 323<br />

Freund, Amy 167<br />

Freytag, Matthias 84, 145<br />

Friboulet, Alain 189<br />

Fu, Boqiao 196<br />

Fu, Chuan 116<br />

Fu, Hua 157<br />

Fujie, Michio 43<br />

G<br />

Gabibov, Alexander G. 189<br />

Gabrielli, William 329<br />

Gaffney, Barbara L. 266<br />

Ganushevich, Yulia 170<br />

Gao, Feng 92


Gao, Jingxing 131<br />

Gao, Si 363<br />

Gao, Xiang 369<br />

Gao, Yuxing 232, 308<br />

Garifzjanov, Airat R. 35, 295, 364<br />

Gataulina, Alfiya N. 140<br />

Gataulina, I. F. 254<br />

Gates, Derek P. 168<br />

Gavrilova, E. L. 18<br />

Gazizova, A. A. 99, 242<br />

Genkina, G. K. 48<br />

Giamarchi, Philippe 274, 292, 301<br />

Gilheany, D. G. 45<br />

Gledhill, Alexandra C. 176<br />

Gloaguen, F. 148<br />

Gololobov, Gennady 189<br />

Gomès, M. 119, 156<br />

Gonsalvi, Luca 170<br />

Goodman, Myron F. 222<br />

Gorenstein, David G. 276<br />

Goss, Wieslawa 199<br />

Govorun, Vadim 189<br />

Grabowiecka, Agnieszka 279<br />

Grajkowski, Andrzej 190<br />

Graznova, T. V. 321<br />

Gregoriades, L. J. 173<br />

Griffiths, D. Vaughan 77, 94, 107, 280<br />

Groombridge, H. J. 280<br />

Gryaznova, T. V. 177<br />

Gryshkun, E. V. 32<br />

Gu, Jiujun 363<br />

Guan, Jintao 100<br />

Gubaidullin, A. T. 179<br />

Gudat, D. 247<br />

Guillouzic, Anne Françoise 139<br />

Guliaiko, Irina V. 32, 63<br />

Guo, Chun 307<br />

Guo, Haiming 357<br />

Guo, Wancheng 365<br />

Guo, Yanchun 68, 102, 351<br />

Guo, Yingcen 103<br />

Guo, Zhongcheng 180<br />

H<br />

Habicher, W. D. 47<br />

Hajdók, I. 247<br />

Hall, Roger G. 317<br />

Han, Daxiong 341<br />

Han, Jiecai 334<br />

383<br />

Han, Libiao 8, 297<br />

Han, Qianwei 266<br />

Han, Xiao 94<br />

Han, Ying 345<br />

Haritha, Buchammagari 43<br />

Hartsock, Robert 30<br />

Harvey, P. D. 156<br />

Hayakawa, Yoshihiro 265<br />

He, Dacheng 225<br />

He, Hongwu<br />

81, 86, 93, 213, 318,<br />

330, 342, 356, 358, 359<br />

He, Jing 325<br />

He, Liangnian 73, 171<br />

He, Lijun 354<br />

He, Zhengjie 52<br />

Heinicke, J. 117, 155, 372<br />

Hendrix, William H. 320<br />

Henry, J. C. 118, 119, 156<br />

Hettel, Sonja 335<br />

Heydt 136<br />

Hey-Hawkins, E. 10, 36, 146, 166, 174, 243<br />

Higham, L. J. 45<br />

Hilfinger, John M. 303<br />

Hiney, R. M. 45<br />

Hiresova, Renata 201<br />

Hissler, Muriel 162<br />

Hofmann, U. 136<br />

Hogan, J. 259<br />

Hoge, Berthold 335<br />

Hohl, Raymond J. 286<br />

Hohmann, Emília 56<br />

Holland, Eric C 197<br />

Holmes, Robert 159<br />

Höltzl, T. 246<br />

Hor, T. S. Andy 134<br />

Hou, Guohua IV, 55<br />

Hou, Jianbo 253<br />

Hu, Anfu 227<br />

Hu, Jia 233<br />

Hu, Liming 151<br />

Hu, Thomas Q. 327<br />

Hu, Xiaolian 346<br />

Hu, Yanggen 283<br />

Huang, Chaobiao 181<br />

Huang, Jing 196<br />

Huang, Shiwen 187<br />

Huang, Xiantong 123, 368<br />

Huang, You 16, 336<br />

Huang, Yuanming 362<br />

Hulisani Maumela, M 329


I<br />

Ionin, Boris I. 14, 111<br />

Ishmaev, E. A. 99, 242<br />

Ito, Shigekazu 84, 145, 161<br />

Ivkova, Gul’nara A. 35, 179, 295<br />

Izawa, Masatoshi 37<br />

J<br />

Jaffrès, Paul-Alain 148, 274, 292, 301<br />

James, Brian R. 327<br />

Jaspers, D. 112<br />

Ji, Tao 122<br />

Ji, Yubin 288<br />

Ji, Zhiliang 305<br />

Jia, Guochen 135<br />

Jia, Yixia 150, 152<br />

Jiang, Lan 69, 345<br />

Jiang, X. D. 241<br />

Jiang, Yuyang<br />

157, 221, 300, 307, 309, 311,<br />

312<br />

Jin, Linhong 275<br />

Jin, Peiyuan 203<br />

Jin, Weiwei 97<br />

Jin, Xuanye 223<br />

Jin, Zhaohui 363<br />

Johnson, B. P. 173<br />

Jones, P. G. 117, 155, 372<br />

Jones, Roger A. 266<br />

Ju, Yong 101, 203, 223<br />

Ju, Zhiyu 66, 346<br />

Juanes, Olga 331<br />

Jugé, Sylvain 118, 119, 156, 228, 373<br />

Juhlin, Lars 169<br />

K<br />

Kachkovskyi, G. A. 285<br />

Kachkovskyi, G. O. 32<br />

Kaczmarek, Renata 186<br />

Kafarski, Paweł 19, 27, 200, 277, 279, 281<br />

Kakuda, K. I. 241<br />

Kalchenko, V. 214<br />

Kalchenko, V. 214, 284, 379<br />

Kaljurand, Ivari 28<br />

Kang, Suk Jin 17<br />

Kano, Naokazu 57<br />

Kapustin, E. G. 83<br />

Karasik, A. A. 10, 146, 166, 243<br />

Karton, Yishai 39<br />

Kashemirov, Boris A. 70, 90, 222, 259, 278, 302,<br />

384<br />

Kataev, А. V.<br />

303<br />

174<br />

Kataeva, Olga N. 70, 75, 78, 90, 146, 243<br />

Kato, Kiyotoshi 37<br />

Kavanagh, K. 259<br />

Kawashima, Takayuki 5, 24, 57, 85<br />

Kaziev, G. Z. 273<br />

Kee, Terence P. 80, 176<br />

Keglevich, György 44, 56, 143, 252<br />

Kerényi, Andrea 143<br />

Kevill, Dennis N. 17<br />

Khailova, N. A. 6<br />

Khakimov, Maxim V. 295<br />

Khasiyatullina, N. R. 22<br />

Khusainov, M. A. 254<br />

Khusainov, N. G. 114, 254<br />

Kibardina, Ludmila K. 6, 78<br />

Kilic, Zeynel 13<br />

Killian, Esna 329<br />

Klimek-Ochab, Magdalena 19, 27<br />

Kniazeva, I. R. 47<br />

Knight, D. Andrew 30<br />

Kobayashi, Junji 24, 85<br />

Koh, Han Joong 17<br />

Koidan, Georgyi N. 120<br />

Kolodiazhna, A. O. 32, 110<br />

Kolodiazhnyi, Oleg I. 32, 63, 71, 89, 110, 285<br />

Kolomeitsev, Alexander A. 28, 31<br />

Kolotylo, M. V. 46<br />

Kononets, L. 290<br />

Konovalov, A. I. 18, 21, 22, 47, 49<br />

Konovalova, I. V. 40, 179<br />

Koppel, Ilmar A. 28<br />

Koppel, Ivar 28<br />

Koroteev, M. P. 273<br />

Körtvélyesi, Tamás 143, 252<br />

Kostyuk, Aleksandr N. 12<br />

Kotorova, Yu. Yu. 40<br />

Kozlov, A. V. 146, 243<br />

Kozlov, V. A. 20, 87<br />

Krakowiak, Agnieszka 186<br />

Krasil’nikova, E. A. 18<br />

Krasnov, S. A. 177, 321<br />

Krasnova, N. S. 35, 364<br />

Krivolapov, D. B. 22, 49, 243<br />

Kubicky, M. 228<br />

Kukhar, V. P. 110, 214, 284, 285, 290<br />

Kulikov, D. V. 146, 166<br />

Kultyshev, Roman 222<br />

Kuriata, Renata 19<br />

Kursheva, L. I. 178


Kütt, Agnes 28<br />

L<br />

Lach, J. 117<br />

Lagrelette, M. 156<br />

Lamarche, François 292, 301<br />

Lammertsma, Koop 272<br />

Larionova, O. А. 88<br />

Latypov, Sh. K. 146, 243<br />

Lauréano, H. 118<br />

Lawson, M. A. 278<br />

Lee, Philip W. 315<br />

Lehn, Pierre 274, 292, 301<br />

Leito, Ivo 28<br />

Lejczak, Barbara 19, 27<br />

Lescop, Christophe 162<br />

Li, Chao 141<br />

Li, Dongpin 103<br />

Li, Gang 232<br />

Li, Heping 344<br />

Li, Rui 209, 350<br />

Li, Tielong 363<br />

Li, Wenfeng 72<br />

Li, Wenpeng 312<br />

Li, Xiaopeng 151<br />

Li, Xinyong 97<br />

Li, Ya 69, 345<br />

Li, Yan 101<br />

Li, Yanjun 358<br />

Li, Yanmei 215, 233, 267<br />

Li, Yanyun 131<br />

Li, Yawei 363<br />

Li, Zhengming 365<br />

Li, Zhengqiu 356<br />

Liang, Hongze 145<br />

Liang, Ying 359<br />

Liao, Xincheng<br />

66, 68, 102, 207, 229, 258,<br />

298, 346, 347, 351, 367<br />

Lin, Jianyun 341<br />

Lin, Kan 123, 253, 368<br />

Lissner, F. 247<br />

Litvinov, I. A. 22, 179, 243<br />

Liu, Aiping 334<br />

Liu, Chengmei 293, 294, 338, 349<br />

Liu, Chenwei 53<br />

Liu, Cunjiang 298<br />

Liu, Feng 300<br />

Liu, Hongxia 221, 300<br />

Liu, Hui 330<br />

385<br />

Liu, Jihong 207<br />

Liu, Jinming 351<br />

Liu, Kai 203<br />

Liu, Lianna 304<br />

Liu, Mian 221, 300<br />

Liu, Peng 227<br />

Liu, Ruoyu 229, 258, 367<br />

Liu, Shenghua 100<br />

Liu, Tanglin 16<br />

Liu, Wei 313<br />

Liu, Xiangqian 204<br />

Liu, Xiaoxia 230, 231<br />

Liu, Xinghai 365<br />

Liu, Yan 225, 230, 231, 369<br />

Liu, Zhenying 363<br />

Liu, Zhongdong 333<br />

Livantsov, M. V. 26<br />

Livantsova, L. I. 26<br />

Lönnecke 36, 146, 174, 243<br />

Lork, Enno 28<br />

Loutsenko, S. 119<br />

Lozinsky, M. O. 76<br />

Lozynsky, M. 290<br />

Lu, Jiansha 202, 207<br />

Lu, Kui<br />

91, 104, 209, 212, 216, 217,<br />

250, 251, 289, 296, 340, 350<br />

Lü, Liang 325<br />

Lü, Mingxiu 212, 217<br />

Lu, Ping 275<br />

Luiz, T. Arun 138<br />

Luo, Shuna 305<br />

Luo, Zhuanxi 348<br />

Luxon, Bruce A. 276<br />

Lyssenkob, K. A. 291<br />

M<br />

Ma, Li<br />

91, 209, 212, 217, 289, 296,<br />

340, 350<br />

Ma, Xinpeng 95, 96<br />

Ma, Yuan 313<br />

Mäemets, Vahur 28<br />

Magdeev, I. M. 61, 321, 352<br />

Makarova, M. V. 291<br />

Makker, Sudesh P. 189<br />

Manoharan, Muthiah 195<br />

Marchenko, Anatoliy P. 120<br />

Marcinowicz, A. 214<br />

Maron, L. 130<br />

Martiyanov, Yevgeniy M. 140<br />

Mastryukova, Tatyana A. 20, 48, 62, 87<br />

Mathey, Francois 1


Matsukawa 58, 241<br />

Matveeva, E. V. 20<br />

Maumela, Chris 329<br />

Mayer, Beatrix 143<br />

McConnell, Ann E. 329<br />

McKenna, Charles E. 70, 90, 222, 259, 261, 278,<br />

302, 303<br />

Meenen, Ellen Van 15<br />

Meng, Xianggao 100<br />

Merkle, R. 173<br />

Metivier, Pascal 133<br />

Metlushka1, Kirill E. 70<br />

Meunier Prest, R. 228<br />

Mével, Mathieu 274, 292, 301<br />

Miao, C. X. 171<br />

Miao, Zhiwei 108, 206, 269, 336<br />

Midollini, Stefano 170<br />

Midoux, Patrick 274<br />

Milaeva, E. R. 26<br />

Miluykov, V. А. 174<br />

Miqueu, K. 130<br />

Mironov, V. F. 40, 88, 179<br />

Mironov, V. F. 21, 22, 49<br />

Mischenko, I. M. 285<br />

Miszuk, Marta 19<br />

Miyake, Hideaki 57, 84<br />

Miyoshi, Katsuhiko 172<br />

Mlynarz, P. 200<br />

Mo, Wenyan 93<br />

Moiseev, Dmitry 327<br />

Momota, Hiro 197<br />

Montier, Tristan 274, 292, 301<br />

Moonen, Kristof 15<br />

Morata, G. 118, 119<br />

Morgan, David H. 329<br />

Morita, Noboru 37, 113<br />

Morozov, V. I. 88<br />

Morse, Herbert C. III 189<br />

Morvan, D. 148<br />

Mostovaya, O. A. 114, 254<br />

Moszner, N. 282<br />

Moulin, D. 156<br />

Mucsi, Zoltán 252<br />

Murakami, Fumiki 37<br />

Murakami, Midori 37<br />

Muravyova, I. 214, 284, 290<br />

Muslinkin, A. A. 61<br />

Mussai, Naama 67<br />

Muzychka, O. 214, 284<br />

Myund, L. A. 244<br />

386<br />

N<br />

Nabiullin, V. N. 61<br />

Nakafuji, Shinya 85<br />

Nakamura, Satoki 43<br />

Nakazawa, Hiroshi 172<br />

Natsagdorj, Amgalan 13<br />

Naumov, R. N. 166, 243<br />

Naumova , A. A. 18<br />

Nawrot, Barbara 199<br />

Nerio, Edward 197<br />

Nesterenko, Valery P. 328<br />

Nesterov, Vitaly V. 32, 71, 89<br />

Nguyen, M. T. 246<br />

Ni, Feng 116, 255<br />

Niecke, Edgar 112, 127<br />

Nieger, M 112, 163, 247<br />

Nifantyev, E. E. 273<br />

Niimi, Taishi 43<br />

Nikitina, Liliya E. 60, 115<br />

Nishide, Katsunori 145<br />

Niu, Mingyu 157<br />

Nixon, John 7<br />

Nixon, Tracy D. 176<br />

Nizamov, Il’nar D. 140, 352<br />

Nizamov, Il’yas S. 60, 115, 140, 352<br />

Nongodlwana, Palesa 329<br />

Novák, Tibor 44, 252<br />

Novikova, O. P. 26<br />

Novikova, Z. S. 99<br />

Nuti, F. 228<br />

Nyulászi, László 249<br />

O<br />

Odinets, I. L. 20, 87, 291<br />

Onys’ko, Petro P. 33, 42, 46<br />

Orlandini, Annabella 170<br />

Oshikawa, Tatsuo 43<br />

Osipov, S. N. 20<br />

Özbolat, A. Helten 163<br />

P<br />

Padda, Ranbir 326<br />

Pan, Canping 316<br />

Papini, A. M. 228<br />

Pedersen, Lars C. 222<br />

Peng, Aiyun 51<br />

Peng, Hao 342<br />

Perez, J. M. 163


Peruzzini, Maurizio 170<br />

Peterson, Larryn W. 303<br />

Petrovskii, Pavel V. 48, 62, 87<br />

Peulecke, N. 117, 372<br />

Pichon, Chantal 274<br />

Pierluigi, Barbaro 170<br />

Pietrusiewicz, K. Michal 25<br />

Pinchuk, Aleksandr M. 12, 120<br />

Pipko, S. E. 83<br />

Pirat, Jean Luc 139, 287<br />

Pirozhenko, V. V. 46<br />

Platova, E. V. 178<br />

Pokross, M. E. 259<br />

Poliakov, D. V. 23<br />

Ponomarenko, Natalia A. 189<br />

Popovich, Yan Ye. 352<br />

Povolotskii, Mark I. 83, 120<br />

Poznanski, J. 214<br />

Pretorius, Mari 329<br />

Prishchenko, A. A. 26<br />

Pudovik, M. A. 6, 18, 47, 75<br />

Punegova, Lyudmila N. 90<br />

Pustovit, Yurii M. 120<br />

Q<br />

Qiang, Liming 347<br />

Qiao, Renzhong 59, 141, 343<br />

Qiu, Jinjun 293, 294, 338, 349<br />

Qu, Guirong 357<br />

Qu, Lingbo<br />

72, 74, 82, 106, 121, 202,<br />

204, 224, 367<br />

R<br />

Rachon, Janusz 38<br />

Rao, M. N. Sudheendra 138<br />

Rassukana, Yu. V. 33, 42, 46, 244<br />

Re, Lige 196<br />

Réau, Régis 162<br />

Rebowska, Beata 199<br />

Reddy, Maddali<br />

Kasthuraiah<br />

43<br />

Reddy, Valluru Krishna 43<br />

Regitz, M 136<br />

Rehmann, Nina 335<br />

Reich, Reuven 67<br />

Rémond, E. 228<br />

Ren, Haiping 289, 340<br />

Ren, Qingyun 81<br />

Ren, Yong 100<br />

387<br />

Reshetnyak, Andrey V. 189<br />

Reznik, V. S. 352<br />

Richard, P. 118, 119, 156<br />

Rodima, Toomas 28<br />

Rogalyov, A. E. 23<br />

Romanova, I. P. 88<br />

Röschenthaler, Gerd<br />

Volker<br />

20, 23, 28, 31<br />

Roze, C. 259, 278<br />

Rudzińska, E. 248<br />

Rusanov, E. B. 83<br />

Russell, R. Graham G. 259, 278, 302<br />

Rybakov, S. M. 114<br />

Rybalkinab, E.Yu. 291<br />

Rydzewska, A. 200<br />

S<br />

Sadkova, Dilyara N. 70<br />

Sadykova, Yu. M. 47<br />

Safin, Damir A. 149<br />

Salt, Michael C. 77<br />

Sasaki, Kohji 37<br />

Sasaki, Mitsuru 319<br />

Sasaki, Shigeru 37, 113<br />

Scheer, Manfred 173<br />

Schindler, József 44<br />

Schoeller, Wolfgang W. 240<br />

Schollhammer, P. 148<br />

Schroeder, G. 200<br />

Segall, Yoffi 39<br />

Sekiguchi, Satoshi 84<br />

Serebryakova, Marina 189<br />

Sergeenko, Gulnur G. 352<br />

Shao, Shuangxi 69, 345<br />

Sharma, Pradeep K. 34<br />

Sharova, E. V. 20<br />

Shatalova, N. I. 18<br />

Sheiko, S. Yu. 285<br />

Shen, Lili 298<br />

Shen, Weiyi 131<br />

Sheng, Xijun 356<br />

Shevchenko, I. V. 23<br />

Shi, Deqing 339, 353<br />

Shi, Kaiqi 69, 345<br />

Shi, Wenping 64, 205<br />

Shi, Xiaona 202<br />

Shih, Alan H. 197<br />

Shipov, A. E. 48<br />

Shivanyukb, A. 284<br />

Shock, David D. 222


Shumbera, Mark 276<br />

Shyshkov, O. A. 31<br />

Sibgatulin, Dmitrii A. 12<br />

Sidorov, Lu. N. 244<br />

Sinitsa, A. A. 33<br />

Sinitsa, Anatoly D. 42, 46, 83<br />

Sinyashin, Oleg<br />

10, 88, 146, 166, 170, 174,<br />

177, 178, 243, 321, 352<br />

Sipos, Melinda 56, 143<br />

Sliwinska, S. 200<br />

Smetannikov, Y. V. 165<br />

Smith, Martin B. 137<br />

Sofronov, Artiem V. 60, 115<br />

Sokolov, Felix D. 142, 149<br />

Song, Baoan 275<br />

Song, Deyu Hu 275<br />

Song, Yingjun 92<br />

Spiridonova, Yu. S. 166<br />

Stankevič, Marek 25<br />

Stawinski, Jacek 201<br />

Stec, Wojciech Jacek 186, 199, 375<br />

Stegbauer, W. David 30<br />

Stevens, Christian V. 15<br />

Streubel, R. 163<br />

Sugiya, Masashi 29<br />

Sun, Manji 224<br />

Sun, Shuting 116<br />

Sun, Yanting 216<br />

Surya Prakash, G. K. 222<br />

Suyama, Takuya 43<br />

Svyashchenko, Yurii V. 12<br />

Szekrényi, Anna 56<br />

Szymelfejnik, Mateusz 38<br />

T<br />

Takács, Daniella 56<br />

Takahashi, Masaki 43<br />

Takano, Keiko 172<br />

Talan, Alexey S. 35, 295<br />

Talarmin, J. 148<br />

Tanchuk, S. V. 284, 285, 290<br />

Tang, Chuchi 95, 96, 98<br />

Tang, Guo<br />

122, 123, 124, 253, 310,<br />

368, 369<br />

Tang, Li'na 91<br />

Tang, Wei 153<br />

Tao, Qin 124<br />

Tarasova, N. P. 164, 165<br />

Tatarinov, D. A. 21<br />

Taylor, Helen V. 77<br />

Tazeev, D. I. 177<br />

388<br />

Terent’eva, S. A. 6, 75<br />

Tian, J. S. 171<br />

Timofeevac, T. V. 291<br />

Timosheva, Natalya V. 159<br />

Tomilov, A. P. 321<br />

Tong, Huaxiang 286<br />

Totsuka, Hirono 43<br />

Tramontano, Alfonso 189<br />

Triffitt, J. T. 278<br />

Tsai, Ming-Daw 260<br />

Tschirschwitz, S. 36<br />

Tsunashim, Katsuhiko 29<br />

Turigin, V. V. 321<br />

U<br />

Ujj, Viktória 44<br />

Upton, Thomas G. 222<br />

V<br />

Varaksina, E. N. 21<br />

Varghese, Babu 138<br />

Vereshchagina, Ya. A. 99, 242<br />

Veszprémi, T. 246<br />

Vilesov, A. S. 165<br />

Virieux, David 139, 287<br />

Volle, Jean Noël 287<br />

Volochnyuk, Dmitrii M. 12<br />

Vorob’eva, D. V. 20<br />

Voronkov, M. G. 242<br />

Vovk, A. I. 214, 284, 285, 290<br />

W<br />

Wada, Takeshi 263<br />

Wagner, Carston R. 183<br />

Waltho, Jonathan P. 237<br />

Wang, Bin 336<br />

Wang, Bo 51<br />

Wang, Chungui 95, 96, 98<br />

Wang, Dongchao 357<br />

Wang, Fang 151<br />

Wang, Haiyan 341<br />

Wang, Hui 59<br />

Wang, J. Q. 171<br />

Wang, Jianing 225<br />

Wang, Jie 336<br />

Wang, Jinquan 73<br />

Wang, Junli 180


Wang, Meimei 354<br />

Wang, Suhua 365<br />

Wang, T. 273<br />

Wang, Tao 86, 348<br />

Wang, Tingting 92<br />

Wang, Tongjian 253, 310<br />

Wang, Wenhu 92<br />

Wang, Xiaohui 297<br />

Wang, Xiuqiang 357<br />

Wang, Yazhou 359<br />

Wang, Yue 309, 311<br />

Wang, Yulin 325<br />

Wang, Z. 219<br />

Wärme, Rikard 169<br />

Wawrzyniak, W. 372<br />

Webster, Charles E. 239<br />

Wen, Tingbin 135<br />

Werner, M. A. 136<br />

Widera, Kinga 199<br />

Wieczorek, Michał 186<br />

Wiemer, Andrew J. 286<br />

Wiemer, David F. 208, 286, 376<br />

Willemse, Alex 329<br />

Williams, D. Bradley G. 144<br />

Williams, Gareth 299<br />

Wilson, Samuel H. 222<br />

Witt, Dariusz 38<br />

Wojcik, Marzena 199<br />

Wu, Guoqiang 325<br />

Wu, Huaping 334<br />

Wu, Nana 354<br />

Wu, Xianli 68, 102<br />

Wu, Xiuling 354<br />

X<br />

Xia, Aibing 50<br />

Xia, Ran 357<br />

Xia, Z. 259, 278<br />

Xia, Zhidao 302<br />

Xiao, Qiang 223<br />

Xiao, Weihong 223<br />

Xiao, Wenjing 97, 103, 330<br />

Xie, Hongxue 354<br />

Xie, Jianhua IV, 55<br />

Xie, Yali 102, 351<br />

Xie, Zhenhua 300, 311, 312<br />

Xu, Jun 64, 205<br />

Xu, Pengxiang 227, 369<br />

Xu, Ruidong 180<br />

389<br />

Xu, Shengzhen 283<br />

Xu, Xinyuan 95, 96, 98<br />

Xu, Xuemei 151<br />

Xue, Wei 275<br />

Y<br />

Yakhvarov, Dmitry 170<br />

Yamamichi, Hideaki 58, 241<br />

Yamamoto, Yohsuke 58, 241<br />

Yamashita, Mitsuji 43<br />

Yang, Junliang 346<br />

Yang, Song 275<br />

Yang, Xianbin 276<br />

Yang, Xun 51<br />

Yang, Yan 333<br />

Yao, Yingyan VII, 104<br />

Yaouanc, Jean Jacques 148, 274, 292, 301<br />

Yarmieva, Liliya N. 90<br />

Yarullin, R. S. 352<br />

Ye, Qiaoyun 69<br />

Ye, Yong 66, 229, 258, 298, 346, 367<br />

Yin, Zhengming 66<br />

Yorke, Jake 50<br />

Yoshifuji, Masaaki 37, 84, 113, 145, 161<br />

Yu, Eric 327<br />

Yu, Gang 43<br />

Yu, Guang'ao 100<br />

Yu, José S. 208<br />

Yu, Yaqin 16<br />

Yu, Zhenrong 181<br />

Yuan, Chengye 262<br />

Yuan, Jinwei 72, 106, 202<br />

Yusupova, G. G. 88<br />

Z<br />

Zabirov, Nail G. 142, 149<br />

Zade, Sanjio S. 39<br />

Zanobini, Fabrizio 170<br />

Zeng, Zhiping 255, 257<br />

Zeuner, F. 282<br />

Zhang, Baojun 121<br />

Zhang, Bo 52<br />

Zhang, Hongbo 343<br />

Zhang, Hongyu 204<br />

Zhang, Hui 131<br />

Zhang, Jianchen 64, 205, 347<br />

Zhang, Jianfeng 108, 206, 269<br />

Zhang, Lihe 184


Zhang, Linglin 211<br />

Zhang, Liping 74<br />

Zhang, Liuji 121<br />

Zhang, Nan 307, 309, 311, 312<br />

Zhang, Peizhuo 307, 309<br />

Zhang, Peng 300<br />

Zhang, Shufeng 218<br />

Zhang, Sixing 68<br />

Zhang, Ting 224<br />

Zhang, Xueqing 131<br />

Zhang, Xumu 128<br />

Zhang, Yu 362<br />

Zhang, Yujin 288<br />

Zhang, Yuping 275<br />

Zhang, Zhaoying 266<br />

Zhang, Zhiguang 357<br />

Zhao, Canfang 221<br />

Zhao, Dongxin 250, 251<br />

Zhao, Guofeng 95, 96<br />

Zhao, Jianwei 266<br />

Zhao, Junfeng 68<br />

Zhao, Wenjie 250, 251, 296<br />

Zhao, Yufen<br />

68,91, 116, 122, 123, 124,<br />

157, 171, 215, 227, 230,<br />

231, 253, 255, 257, 267,<br />

289, 304, 305, 308, 309,<br />

310, 343, 368, 369<br />

390<br />

Zheltukhin, Viktor F. 70<br />

Zhen, Xi 193<br />

Zheng, Jinyun 218<br />

Zhong, Shangbin 346<br />

Zhou, Fufang 362<br />

Zhou, Libin 181<br />

Zhou, Qilin 55, 125, 150, 152<br />

Zhou, Xiang 196<br />

Zhou, Zhaoliang 325<br />

Zhou, Zhenghong 95, 96, 98<br />

Zhu, Bo 348<br />

Zhu, Jiaqi 334<br />

Zhu, Shoufei IV, 55, 150, 152<br />

Zhuo, Renxi 187<br />

Zielenkiewicz, W. 214<br />

Ziganshin, Rustam 189<br />

Zon, Gerald 192<br />

Zou, Ruyi 66, 207, 298, 346<br />

Zuo, Na 213<br />

Zweni, Pumza 329<br />

Żymańczyk-Duda, Ewa 19, 27

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