Catalysis Letters, Vol.141, No.1, 163-167, 2011
Rapid and Highly Selective Epoxidation of Styrene by meta-Chloroperbenzoic Acid Catalyzed by Manganese Meso-tetrakis(Pentafluorophenyl)Porphyrin in the Presence of Tetrabutylammonium Acetate and Bromide
Epoxidation of styrene with m-CPBA in the presence of Mn(TPFPP)Cl was improved to high yield (98-100%) and excellent selectivity (100%) by using n-Bu4NOAc or n-Bu4NBr as co-catalysts in less than 5 min. Also comparison of co-catalytic activity of n-Bu4NOAc, n-Bu4NBr and imidazole in epoxidation of cis-stilbene and styrene was carried out at similar conditions.