Catalysed epoxidation and hydroxylation of alkene by osmium(III)–porphyrin complexes
Abstract
Osmium(III)–porphyrin complexes have been prepared by Br2 oxidation of OsII(P)(PBun3)(CO) in CH2Cl2[H2P = H2OEP (octaethylporphyrin) and H2TPP (meso-tetraphenylporphyrin)]; the ‘OsIII(P)(PBun3)Br + PhlO’ system is capable of performing epoxidation and hydroxylation of systene and cyclohexene.