Mechanism of the reaction of trialkyl phosphites with α-halogenoacetophenones in alcoholic solvents
作者:Imre Petneházy、György Keglevich、László Tőke、Harry R. Hudson
DOI:10.1039/p29880000127
日期:——
suggested betaine as a common intermediate in alcoholic solution. Further reaction then involvesrearrangement to give the vinyloxyphosphonium species (and hence the Perkow product) or protonation followed by dealkylation to give the α-hydroxyphosphonate. Evidence for the possible formation of dehalogenated ketone via solvolysis of the α-hydroxyphosphonium intermediate is also presented.