(+)-(S)-α-diethoxyphosphorylvinyl p-tolyl sulfoxide: A new chiral Michael acceptor and dienophile
作者:Marian Mikołajczyk、Wanda H. Midura
DOI:10.1016/s0957-4166(00)86048-6
日期:1992.12
reagent, (+)-(S)-1, was prepared from (+)-(S)s-α-diethoxy-phosphorylethyl p-tolyl sulfoxide 2 by phenylselenylation-deselenylation procedure. Its reactivity was demonstrated by diastereoselective Michael addition of ethanethiol giving rise to 3, tandem Michael addition/intramolecular Horner--Wittig reaction with 2-formyl pyrrole leading to the corresponding pyrrolizine sulfoxide 5 and cycloaddition with cyclopentadiene