Selective oxidation of bulky sulfides to sulfoxides over titanosilicates having an MWW structure in the presence of H2O2 under organic solvent-free conditions

A selective hydrogen peroxide oxidation of sulfides to sulfoxides using Ti-MWW and Ti-IEZ-MWW catalysts was developed. This reaction was carried out under organic solvent-free conditions, and the only side-product was water. Improvement of catalytic activity toward bulky sulfides will be achieved by optimization of the topology in the Ti zeolite.