Room-Temperature Synthesis of Tetrasubstituted 1,3-Dithioles by Dimerizing Sulfuration of Chalcones with Elemental Sulfur

J Org Chem. 2020 Nov 6;85(21):13508-13516. doi: 10.1021/acs.joc.0c01618. Epub 2020 Oct 27.

Abstract

Chalcones were found to undergo sulfurative dimerization with elemental sulfur to tetrasubstituted 1,3-dithioles. The reaction was found to proceed at room temperature in the presence of a nitrogen-base catalyst in DMSO.