A very efficient alkene epoxidation by magnesium monoperoxyphthalate catalysed by manganese porphyrins

Abstract

Mn-porphyrins catalyse the epoxidation of various alkenes by magnesium monoperoxyphthalate: with 0.125–1% of tetra-2,6-dichlorophenylporphinatomaganese(III) acetate as a catalyst, alkene conversion is nearly complete within 0.5–5 minutes at 0 °C and good epoxide yields (60–93%) are obtained.