The Rapid and Efficient Synthesis of Bromohydrins from Olefins under HBr/H₂O₂ System by Visible Light Induced

The Rapid and Efficient Synthesis of Bromohydrins from Olefins under HBr/H₂O₂ System by Visible Light Induced

A simple and safe method has been presented for conversion of olefins into bromohydrins using hydrogen bromide and hydrogen peroxide as bromide source by visible light induced within a very short time to get high yield bromohydrins along with a little mount dibromo-product. In this paper, cyclohexene is firstly carried out as the model substrate and investigated the bromination under HBr/$H_2O_2$ system using 150 W incandescent light irradiated in C$Cl_4$ within short time to get good yield of 2-bromocyclohexanol along with a little mount of 1,2-dibromocyclohexane; then, a series of alkenes are brominated to corresponding bromohydrins using the same protocol.