GRAPHENE OXIDE-ASSISTED ONE-POT AND ODORLESS SYNTHESIS OF SYMMETRICAL DISULFIDES USING PRIMARY AND SECONDARY ALKYL HALIDES (TOSYLATES) AND THIOUREA AS SULFUR SOURCE REAGENT

Graphene oxide is described as a heterogeneous oxidant for the synthesis of symmetrical disulfides through the in situ generation of thiols from primary and secondary alkyl halides (tosylates) and thiourea in wet acetonitrile. A variety of alkyl halides and alkyl tosylates can be converted to corresponding disulfides in good to excellent yields. This strategy is free of foul-smelling thiols.