Catalyzed Oxidation of Cyclohexene and Cyclooctene with First Row Transition etallophthalocyanines

Abstract

<em>First row transition metal complexes of phthalocyanine are employed as catalysts for the oxidation of cyclohexene and cyclooctene using iodosylbenzene and pentafluoroiodosyl benzene. The catalysis was performed in dichloromethane: methanol:water (80:18:2) solvent mixture. The products of the catalysis for cyclohexene are epoxycyclohexane, 2-cyclohexene-1-ol and 2-cyclohexene-1-one whereas for cyclooctene it is specifically cyclooctene oxide. For cyclohexene oxidation epoxide yield and selectivity is in the order of Mn^II > Fe^III> Fe^II > Co^II > Cr^III > Ni^II > Cu^II , while for 2-cyclohexene-1-one production the ability of the catalysts are in the order of Ni^II > Co^II > Cu^II > Cr^III > Fe^III> Fe^II > Mn^II .</em>