Process for preparing bis-(diphenylsulfoniophenyl)-sulfide bis-chloride

摘要

Bis-(diphenylsulfoniophenyl)-sulfide-bis-chloride and related aryl sulfonium halides are produced in high yields and in high purity by reacting diphenyl disulfide (Ph-S-S-Ph) in benzene in the presence of aluminum chloride with gaseous chlorine according to the disclosed process.