A general method for the synthesis of unsymmetrical aliphatic disulfides has been developed from a procedure previously described in the literature. The route involves the formation of an alkylsulfenyl thiocyanate, prepared from the desired mercaptan and thiocyanogen. Treatment of the sulfenyl thiocyanate with a second mercaptan results in displacement of thiocyanic acid and the formation of an unsymmetrical disulfide. Several ...