Polyoxometalate-molybdenylacetylacetonate hybrid complex: A reusable and efficient catalyst for oxidation of alkenes with tert-butylhydroperoxide

The hybrid complex consist of molybdenylacetylacetonate complex covalently linked to a lacunary Keggin-type polyoxometalate, was synthesized and characterized by elemental analysis, SEM, diffuse reflectance UV-Vis and FT-IR spectroscopic methods. The hybrid complex, [MoO2(acac)-POM], was used for alkene epoxidation with tert-BuOOH in 1,2-dichloroethane as solvent. This heterogeneous catalyst was reused several times in the oxidation of cyclooctene.