Aryldithiocarbamates as thiol alternatives in Cu-catalyzed C(aryl)–S coupling reactions using aryldiazonium tetrafluoroborate salts

Abstract

An efficient method for the synthesis of unsymmetrical diaryl sulfides has been developed by the C–S cross coupling of aryldithiocarbamates and aryldiazonium salts in the presence of CuI-2,2′-bipyridine and Zn. Aryldithiocarbamate compounds have been used here as thiol substitutes. The protocol shows wide substrate scope and good yields of the products.