(+)-(S)-α-diethoxyphosphorylvinyl p-tolyl sulfoxide: A new chiral Michael acceptor and dienophile

Article abstract of DOI:10.1016/S0957-4166(00)86048-6

The title reagent, (+)-(S)-1, was prepared from (+)-(S)(s)-α-diethoxy-phosphorylethyl p-tolyl sulfoxide 2 by phenylselenylationl-deselenylation procedure. Its reactivity was demonstrated by diastereoselective Michael addition of ethanethiol giving rise to