Solid-phase oxidation of organic compounds with benzyltriphenylphosphoniumdichromate

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