Efficient Oxidative Methyl Esterification of Aldehydes By Silica-supported Manganese Complex: Clean and Recyclable Catalyst

An oxidative methyl esterification of aldehydes was carried out using hydrogen peroxide as oxidant and silica supported manganese complex as catalyst. The catalyst was prepared by grafting method and characterized by surface area analysis by the BET method, elemental and thermogravimetric analyses, FT-IR, C-13-CPMAS spectral studies and atomic absorption spectrometry technique (AAS). The work-up procedure is very simple and products were obtained in moderate to high yields. The catalyst was reutilized during successive catalytic cycles.