FUNCTIONALIZATION OF SATURATED-HYDROCARBONS BY APROTIC SUPERACIDS .4.IONIC BROMINATION OF ETHANE AND OTHER ALKANES AND CYCLOALKANES WITH MOLECULAR BROMINE IN THE PRESENCE OF SYSTEMS BASED ON POLYHALOMETHANES AND ALBR3 UNDER MILD CONDITIONS

Authors
AKHREM IS ORLINKOV AV AFANASEVA LV VOLPIN ME
Citation
Is. Akhrem et al., FUNCTIONALIZATION OF SATURATED-HYDROCARBONS BY APROTIC SUPERACIDS .4.IONIC BROMINATION OF ETHANE AND OTHER ALKANES AND CYCLOALKANES WITH MOLECULAR BROMINE IN THE PRESENCE OF SYSTEMS BASED ON POLYHALOMETHANES AND ALBR3 UNDER MILD CONDITIONS, Russian chemical bulletin, 45(5), 1996, pp. 1148-1153
Citations number
11
Categorie Soggetti
Chemistry
Journal title
Russian chemical bulletin → ACNP
ISSN journal
10665285
Volume
45
Issue
5
Year of publication
1996
Pages
1148 - 1153
Database
ISI
SICI code
1066-5285(1996)45:5<1148:FOSBAS>2.0.ZU;2-R
Abstract
Aprotic organic superacids CBr4 . 2AlBr(3), CBr4 . AlBr3, CHBr3 . 2AlB r(3), CCl4 . 2AlBr(3), and C6F5CF3 . 2AlBr(3) efficiently catalyze the bromination of alkanes and cycloalkanes with Br-2. Ethane is selectiv ely brominated at 55-65 degrees C to give mostly 1,2-dibromoethane (st oichiometric reaction). Propane, butane, cyclopentane, cyclohexane, an d methylcyclopentane react with Br-2 at -40 to -20 degrees C with good selectivity affording monobromides in high yields (catalytic reaction s).