synlett 17/2009 - Thieme Chemistry

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Letters VI Table of Contents 2755 F. Hahn U. Schepers* 2761 J. Tallineau G. Bashiardes J.-M. Coustard F. Lecornué* 2765 C. Alp U. Atmaca M. Çelik M. S. Gültekin* 2769 J. Clayden* J. Senior Thieme Chemistry Journal Awardees – Where are They Now? A Convenient Route for Introduction of Lipophilic Side Chains in Polyamine Backbones by Solid-Phase Synthesis cargo N H N N H side chain N Aloc side chain Aloc N H N solid-phase synthesis o-Ns N N head group n A One-Pot Preparation of Aryl- and Heteroarylcycloalkenes: Application to the Total Synthesis of (±)-Laurokamurene B Br R 1 1) n-BuLi, THF, –78 °C 2) CeCl 3, THF, –78 °C 3) R2 n O –78 °C to r.t. 4) DBU, MsCl or SOCl2 –30 °C to r.t. 10 examples, 17–93% yield R 2 R 1 n n = 1–4 (±)-laurokamurene B One-Pot Synthesis of 1,2,3-Triols from Allylic Hydroperoxides and a Catalytic Amount of OsO 4 in Aqueous Acetone OOH OH 0.2 mmol% OsO4 H2O–acetone (1:9) r.t., 30–94% Synthesis of 2,2′,6-Trisubstituted and 2,2′,6,6′-Tetrasubstituted Diaryl Sulfides and Diaryl Sulfones by Copper-Promoted Coupling and/or Ortholithiation + Br SH I OH OH CuI, K 2CO 3 ethylene glycol t-amyl alcohol 120 °C, 16 h S Br 76%
Table of Contents VII 2773 K. Bahrami* M. M. Khodaei* M. Soheilizad 2777 N. Assimomytis Y. Sariyannis G. Stavropoulos P. G. Tsoungas* G. Varvounis P. Cordopatis 2783 V. P. Reddy K. Swapna A. V. Kumar K. R. Rao* 2789 M.-A. Bazin M. Jouanne H. El-Kashef S. Rault* A Novel, Practical Synthesis of Sulfonyl Chlorides from Thiol and Disulfide Derivatives R SH (i) O (ii) R S Cl O RS SR Reagents and conditions: (i) H2O 2 (3 mmol), ZrCl 4 (1 mmol), MeCN, 25 °C; (ii) H2O2 (2 mmol), ZrCl4 (1 mmol), MeCN, 25 °C Anionic ortho-Fries Rearrangement, a Facile Route to Arenol-Based Mannich Bases OCONR2 OH O OH R NR2 2 R1 R2 R1 R2 R1 s-BuLi LiAlH4 TMEDA THF –78 °C THF 0 °C to r.t. R1 , R2 69–81% 65–79% =HC C H C H CH, or H R = alkyl, cycloalkyl or heterocycloalkyl Recyclable Nano Copper Oxide Catalyzed Stereoselective Synthesis of Vinyl Sulfides under Ligand-Free Conditions I R or + R I R'SH R = R' = alkyl, aryl CuO (1.5 mol%), DMSO (2.0 mL) KOH (1.5 equiv), 80 °C NR2 R S R' or R S R' An Efficient Microwave-Promoted Route to (Z)-Stilbenes from trans-Cinnamic Acids: Synthesis of Combretastatin A-4 and Analogues R 1 R 1 CO2H Br2, CHCl3, r.t., 2 h 60–95% Br R 1 B(OH)2 R , Pd(PPh3)4 2 DME–H2O, base, 100 °C, MW, 15 min 21–86% (2 steps) Br Br CO2H Et3N, DMF, 140 °C, MW, 1 min R1 R2 Letters
Page 1: SYNLETT 2715 Y. Zhang Z. Lu W. D. W
Page 5 and 6: Table of Contents IX 2815 R. Jiang
Page 7 and 8: Table of Contents XI 2849 J.-Y. Wac
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