High selectively oxidative bromination of toluene derivatives by the H 2 O 2–HBr system

…, YJ Li, JR Gao, JH Jia, L Han, WJ Sheng, YX Jia

Index: Ju, Jie; Li, Yu Jin; Gao, Jian Rong; Jia, Jian Hong; Han, Liang; Sheng, Wei Jian; Jia, Yi Xia Chinese Chemical Letters, 2011 , vol. 22, # 4 p. 382 - 384

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Citation Number: 9

Abstract

An aqueous solution of hydrogen peroxide and hydrogen bromide illuminated by a 60W incandescent light bulb serves as a source of bromine radicals. Various substituted toluenes (NO2, Cl, Br, H, CH3) were high selectively brominated at the benzyl position for monobromination in CH2Cl2 at ice water with catalyst free. This simple but effective bromination of toluene derivatives with an aqueous H2O2–HBr system is characterized ...