The epoxidation of olefins catalyzed by a new heterogeneous polyoxometalate-based catalyst with hydrogen peroxide

Inorganic-organic hybrid material was formed by [PW11O39](7-) and benzene-135-[tris(phenyl-4-carboxylic acid)] tris (2-trimethyl-ammonium ethyl) ester This hybrid material behaved as a very effective and selective heterogeneous catalyst for the epoxidation of olefins with hydrogen peroxide as an oxidant This heterogeneous catalyst could be easily recovered and reused after reaction without loss of activity (C) 2010 Elsevier B V All rights reserved