Chemoselective C-S/S-S Formation between Diaryl Disulfides and Tetraalkylthiuram Disulfides

An efficient C–S/S–S formation for the chemoselective synthesis of aryl dithiocarbamate (C–S formation) and aryl dialkylcarbamo(dithioperoxo)thioate (S–S formation) was studied. The chemoselectivity could be controlled by modulating the reaction temperature, base, and catalyst. The transformation features a simple reaction, easily available starting materials, high selectivity and easy performance, showing its practical synthetic value for the preparation of some potential biologically or pharmaceutically active compounds.