Unexpectedly easy non-catalytic transfer of allyl group from allyl sulfides to secondary phosphine sulfides

Abstract

The unexpected allylation of secondary phosphine sulfides with allyl sulfides has been found. The reaction proceeds under mild conditions (no catalyst and solvent, 80°C) to give allyldiorganylphosphine sulfides (yield up to 79%). The latter, under the reaction conditions, are able to add the initial secondary phosphine sulfides across the allyl group in the anti-Markovnikov mode to deliver propane-1,3-diylbis(diorganylphosphine sulfides), promising extractants of heavy metals and ligands for the synthesis of metal complex catalysts.