Solvent‐Anchored Supported Liquid Phase Catalysis: Polyoxometalate‐Catalyzed Oxidations

Abstract

A new immobilization technique for homogeneous catalysts is represented by the title process. Polyethers that are covalently attached to silica surfaces (shown schematically on the right) act as solvent and/or ligands for the catalysts, in this case polyoxometalates (POM). Such systems allow, for example, the quantitative oxidation of cyclooctene to cyclooctene oxide. The catalyst can be recycled without loss of activity.