“…Diphenyl disulfide is reported to be formed by long treatment of diphenyl sulfide with phenylsodium or benzylsodium (163); the disulfide is also obtained by boiling the sulfide with sulfur (246). Diphenyl ether reacts differently with phenylsodium, giving cleavage of the ether linkage, and some arylation (265). A series of diaryl sulfides containing a phenolic hydroxyl group either ortho or para to the sulfur has been found to undergo displacement of the sulfur by typical electrophilic reagents, such as chlorine, bromine, nitric acid, sulfuryl chloride, and benzenediazonium chloride (315,316); the following reaction is representative.…”