Interrupted Michael\nReaction: Sulfophosphinoylation\nof α,β-Unsaturated Ketones Catalyzed by Phosphine

An efficient method for phosphine-catalyzed sulfophosphinoylation\nof α,β-unsaturated ketones for synthesis allylic organophosphorus\ncompounds has been reported, in which α,β-unsaturated\ncompounds acting as zwitterions react with electrophiles and nucleophiles\nto form a C–P bond and a C–O bond and obtain allylic\norganophosphorus with high regio- and stereoselectivity in moderate\nto excellent yields.