Réactions des 'erivés du phosphore trivalent avec les composés à halogène positif—III
作者:E. Corre、M.F. Chasle、A. Foucaud
DOI:10.1016/0040-4020(72)88158-4
日期:1972.1
The reaction of an α-cyano α-bromoester with triisopropylphosphite leads to a N-phosphorylated ketenimine, presumably by rapid rearrangement of the ion pair intermediate initially formed, to a quasiphosphonium salt, followed by isopropylbromide elimination. The quasiphosphonium salt can be trapped by the ion pair prepared by the reaction of NEt3 with the α-cyano α-bromoester. This reaction gives a