Hydrogen peroxide-or sodium hypochlorite-induced bromination of 1-arylbut-2-enes
摘要:
Bromination of 1-arylbut-2-enes in the system [HBr or NaBr (KBr)-HX]-H2O2 (or NaOCl) under relatively mild conditions leads to electrophilic addition of bromine or hypobromous acid at the side-chain double bond. Under more severe conditions, the process is accompanied by bromination of the aromatic ring. Treatment of the title compounds with peroxy acids (RCOOH-H2O2) gives the corresponding epoxy derivatives which react with HBr and oxygen-containing nucleophiles to produce alpha-bromo alcohols, diols, and diol acetates.
Hydrogen peroxide-or sodium hypochlorite-induced bromination of 1-arylbut-2-enes
作者:O. A. Sadygov、Kh. M. Alimardanov
DOI:10.1134/s1070428007110139
日期:2007.11
Bromination of 1-arylbut-2-enes in the system [HBr or NaBr (KBr)-HX]-H2O2 (or NaOCl) under relatively mild conditions leads to electrophilic addition of bromine or hypobromous acid at the side-chain double bond. Under more severe conditions, the process is accompanied by bromination of the aromatic ring. Treatment of the title compounds with peroxy acids (RCOOH-H2O2) gives the corresponding epoxy derivatives which react with HBr and oxygen-containing nucleophiles to produce alpha-bromo alcohols, diols, and diol acetates.