Solid-phase oxidation of organic compounds with benzyltriphenylphosphonium dichromate

Abstract

Benzyltriphenylphosphonium dichromate could be used for oxidation of organic compounds such as alcohols, thiols and sulfides to the corresponding carbonyl, disulfide and sulfoxide derivatives under solid-phase conditions. This reagent is very easily prepared from an aqueous solution of benzyltriphenylphosphonium chloride with CrO3 in 3 N HCl at room temperature. The reagent, is a stable orange powder, which may be stored for month without loss of its activity.