Symmetrical disulfide synthesis via nickel-catalysis using potassium sulfide as sulfur source

摘要

An efficient one-pot method for the synthesis of organic disulfides from aryl and alkyl halides and potassium sulfide has been described. K2S acts as an inexpensive and readily available sulfur source. A variety of symmetric diaryl and dialkyl disulfides was prepared in good to excellent yields using NiCl2 center dot 6H(2)O and acetylacetone as the catalytic system.