A simple and efficient protocol for the cross-coupling of vinyl hahdes with thiols catalyzed by recyclable CuU nanoparticles underligand-freeconditions is reported. This methodology results in the synthesis of a variety of vinyl sulfides in excellent yields with retention of stereochemistry.
MnCl2·4H2O is described as an efficient catalytic system for the cross coupling of aryl/vinyl halides with thiols using KOH as base and DMSO as solvent. By using this new catalytic system various aryl/vinyl sulfides were synthesized in moderate to good yields. Retention of stereochemistry is observed in the case of vinyl sulfides.
oxide/TMEDA-catalyzed cross-coupling of vinyl halides with thiols/diphenyl diselenide in anhydrous DMSO and KOH is reported. Utilizing this protocol various vinyl sulfides and selenides were synthesized in excellent yields with retention of the stereochemistry. The catalyst was recyclable.