Efficient catalytic epoxidation of alkenes by a manganese porphyrin and periodate in the presence of imidazole
Abstract
Different alkenes are epoxidized with high selectivity in the presence of manganese(III) tetraphenylporphyrin–imidazole–sodium periodate–tetrabutylammonium bromide system in CH2Cl2–H2O media, with high yields (80–100%) at room temperature.