Novel acylation of a vinyl group by the reaction of an aldehyde and a vinylselenonium ylide

Abstract

Vinylselenonium ylide, which was generated from (Z)-vinylselenonium salt with a base such as sodium or potassium hydride, reacted with aromatic aldehydes to produce the α,β-unsaturated ketones, which were obtained in better yields from the aldehydes with an electron-withdrawing group than from those with an electron-donating group.