Olefin epoxidation with tert-BuOOH catalyzed by vanadium polyoxometalate immobilized on ionic liquid-modified MCM-41

Abstract

Preparation and characterization of vanadium-containing polyphosphomolybdates supported on ionic liquid-modified MCM-41, MCM-41-Im, are reported. The catalyst, [PVMo@MCM-41-Im], was characterized by elemental analysis, X-ray diffraction, scanning electron microscopy and also FT-IR, and UV-Vis spectroscopic methods. This heterogeneous catalytic system was applied for efficient epoxidation of various olefins in the presence of tert-BuOOH in 1,2-dichloroethane under reflux. The catalyst can be reused several times without apparent loss of its catalytic performance.

Keywords:

• Immobilized ionic liquid
• tert-BuOOH
• MCM-41
• Epoxidation
• Polyoxometalate
• Heterogeneous catalyst

Acknowledgements

The support of this work by the Center of Excellence of Chemistry of University of Isfahan (CECUI) is acknowledged.