Acros Organics & Maybridge - D
Acros Organics & Maybridge - D
Acros Organics & Maybridge - D
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1,2-Dibromocyclopentene, 97%<br />
<strong>Acros</strong> <strong>Organics</strong> Product code Packaging Pack size Price<br />
399420010 Glass bottle 1 g INR 5,130<br />
399420050 Glass bottle 5 g INR 16,840<br />
R21/22 R36/37/38<br />
S26 S36/37/39<br />
Store below +4ºC<br />
C 5 H 6 Br 2<br />
CAS: 75415-78-0<br />
MFCD00010246<br />
FW: 225.90<br />
bp: 78 °C (5 mmHg)<br />
Fp: >110 °C<br />
d: 1.895<br />
1,10-Dibromodecane, 97%<br />
<strong>Acros</strong> <strong>Organics</strong> Product code Packaging Pack size Price<br />
112780250 Glass bottle 25 ml INR 770<br />
112781000 Glass bottle 100 ml INR 2,010<br />
112785000 Glass bottle 500 ml INR 7,910<br />
S24/25 C 10 H 20 Br 2 Br(CH 2 ) 10 Br<br />
CAS: 4101-68-2<br />
MFCD00000222<br />
FW: 300.07<br />
mp: 25-30 °C<br />
bp: 160 °C (15 mmHg)<br />
Fp: >112 °C<br />
4,4'(5')-Dibromodibenzo-18-crown-6, 95%<br />
d: 1.340<br />
n 20<br />
D : 1.4912<br />
<strong>Acros</strong> <strong>Organics</strong> Product code Packaging Pack size Price<br />
384940050 Glass bottle 5 g INR 5,080<br />
R36/37/38<br />
S26 S37/39<br />
C 20 H 22 Br 2 O 6<br />
CAS: 87016-67-9<br />
MFCD00143222<br />
FW: 518.20<br />
mp: 182-187 °C<br />
1,4-Dibromo-2,5-difluorobenzene, 98%<br />
<strong>Acros</strong> <strong>Organics</strong> Product code Packaging Pack size Price<br />
249500010 Glass bottle 1 g INR 880<br />
249500100 Glass bottle 10 g INR 4,140<br />
R36/37/38<br />
S26 S37/39<br />
C6H2Br2F2 CAS: 327-51-5<br />
MFCD00000346<br />
Br2C6H2F2 FW: 271.88<br />
mp: 59-63 °C<br />
Br<br />
Br<br />
bp: 96 °C (20 mmHg)<br />
http://www.acros.com Dibromocyclo<br />
Dibromodifluoromethane<br />
APPLICATION GUIDE<br />
Alkylation<br />
* O, S, N-Alkylation Alkylation of alkoxides, thiolates, amines and phosphites is well known. TL 1984,<br />
25, 4937; TL 1981, 1997; JFC 1977, 10, 329.<br />
Cyclopropanation<br />
CF2Br2 in the presence of Zn, reacts with alkenes to generate 1,1-difluorocyclopropane derivatives.<br />
JOC 1990, 55, 589<br />
Fluorination<br />
CF3Cu is prepared from CBr2F2 and couples with aryl, vinyl and allyl halides to give the<br />
trifluoromethylated derivative. JACS 1986, 108, 832<br />
Used as a precursor in the Wittig reaction to introduce =CF2 . Aldehydes and ketones are converted<br />
to 1,1-difluoroalkenes in the presence of PPh3 . SC 1973, 3, 197<br />
Free Radical Chemistry<br />
* Radical addition of halogen to alkene Alkenes (RCH=CH2 ) can be halogenated by CF2Br2 using a<br />
initiator to give RCHBrCH2CF2Br. Alkynes are also halogenated. CL 1991, 1319<br />
Organometallic Chemistry<br />
* Nucleophilic displacement Treatment of carbanions with CF2Br2 gives the bromodifluoromethylated<br />
compound. The sodium salt of 2-methylbenzoimidazole is N-alkylated with CBr2F2 . Subsequent<br />
reaction with TBAF give the N-trifluoromethylated heterocycle. JFC 2000, 106, 181.<br />
Rearrangements<br />
* Ramberg-B¯cklund This reagent is most commonly used in the Ramberg-B¯cklund reaction - the<br />
reaction can be carried out at room temperature, the by-products are volatile and over halogenation<br />
of the sulfone does not occur and there is no carbene addition to the alkene. OR 2003, 62, 357<br />
Dibromodifluoromethane, 97%<br />
<strong>Acros</strong> <strong>Organics</strong> Product code Packaging Pack size Price<br />
311330500 Glass bottle 50 g INR 12,900<br />
311332500 Glass bottle 250 g INR 61,270<br />
R36/37/38<br />
S26 S37/39<br />
Store below +4ºC<br />
CBr2F2 CAS: 75-61-6<br />
MFCD00000367<br />
FW: 209.83<br />
F2CBr2 mp: -141 °C<br />
bp: 24.5 °C<br />
d: 2.297<br />
1,3-Dibromo-2,2-dimethoxypropane, 99%<br />
n 20<br />
D : 1.398 -1.402<br />
<strong>Acros</strong> <strong>Organics</strong> Product code Packaging Pack size Price<br />
355090010 Glass bottle 1 g INR 1,700<br />
355090050 Glass bottle 5 g INR 5,030<br />
S24/25 C 5 H 10 Br 2 O 2<br />
CAS: 22094-18-4<br />
MFCD00051792<br />
FW: 261.94<br />
mp: 65-68 °C<br />
1,4-Dibromo-2,5-dimethylbenzene, 99%<br />
<strong>Acros</strong> <strong>Organics</strong> Product code Packaging Pack size Price<br />
279010500 Glass bottle 50 g INR 1,660<br />
279012500 Glass bottle 250 g INR 7,010<br />
R36/37/38<br />
S24/25<br />
C8H8Br2 CAS: 1074-24-4<br />
MFCD00000091<br />
FW: 263.95<br />
mp: 72-75 °C<br />
n 20<br />
D : 1.543 -1.545<br />
Please enquire for bulk quantities 705<br />
Br<br />
O<br />
O<br />
Br<br />
Br<br />
Br<br />
D
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