Used to oxidize an allylic methylene group in a synthesis of α,β-unsaturated lactones from D-glucose using Grubbs-catalyzed ring-closing metathesis. A stable versatile oxidizing agent for mild and selective oxidation of alcohols.Usually used to oxidize an allylic methylene group. Used to oxidize an allylic methylene group in a synthesis of α,β-unsaturated lactones from D-glucose using Grubbs-catalyzed ring-closing metathesis. A stable versatile oxidizing agent for mild and selective oxidation of alcohols. Usually used to oxidize an allylic methylene group.