Conjugate additions of heteroanions to ethynyl p-tolyl (+)-(R)-sulfoxide
摘要:
Conjugate additions of several heteroanions (thiolates, alkoxides, phenoxides) to ethynyl p-tolyl (+)-(R)-sulfoxide 1 proceed stereospecifically to give only (Z) isomers of 2-alkylthio- or alkoxy-(R)-vinylsulfoxides.