Manganese porphyrins supported on montmorillonite as hydrocarbon mono-oxygenation catalysts: particular efficacy for linear alkane hydroxylation

Abstract

A supported Mn–porphyrin catalyst has been prepared by immobilisation of the tetracationic Mn [meso-tetra (4-N-methylpyridiniumyl)porphyrin]Cl⁴⁺ on montmorillonite, and is found to be efficient for alkene epoxidation and alkane hydroxylation by PhlO, with a higher ability to oxidize alkanes, and in particular short linear alkanes, than corresponding homogeneous or silica-supported Mn–porphyrin catalysts.