Abstract

Reactions of epoxides with tetrasubstitute ammonium halides in the presence of β-cyclodextrins or polyHIPE in aqueous media afforded vicinal halohydrins in excellent yields via regioselective ring opening of the unsymmetric epoxides.

Keywords: Epoxides, polyHIPEs, beta cyclodextrins, water, regio-selective, Cyclodextrins (CDs), cyclohexene epoxides, epichlorohydrin, aryloxy- methylene epoxide, polyHIPE, halohydrins, chlorosilanes, haloborane, low regiospecificity,, oxiranes