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.