Oxidative esterification of alcohols by a single-side organically decorated Anderson-type chrome-based catalyst?

Green Chemistry Pub Date: 2021-03-12 DOI: 10.1039/D1GC00161B

Abstract

The direct esterification of alcohols with non-noble metal-based catalytic systems faces great challenges. Here, we report a new chrome-based catalyst stabilized by a single pentaerythritol decorated Anderson-type polyoxometalate, [N(C4H9)4]3[CrMo6O18(OH)3C{(OCH2)3CH2OH}], which can realize the efficient transformation from alcohols to esters by H2O2 oxidation in good yields and high selectivity without extra organic ligands. A variety of alcohols with different functionalities including some natural products and pharmaceutical intermediates are tolerated in this system. The chrome-based catalyst can be recycled several times and still keep the original configuration and catalytic activity. We also propose a reasonable catalytic mechanism and prove the potential for industrial applications.

Graphical abstract: Oxidative esterification of alcohols by a single-side organically decorated Anderson-type chrome-based catalyst
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