Aminophosphanes as Iminophosphoranyl Synthons: Efficient P-H Addition to Activated C=C Bonds

Abstract

Asymmetrically substituted bis(iminophosphoranes) derived from 1,2- bis(diphenylphosphino)ethane are prepared by Michael-type addition of easily available N,P,P-trisubstituted aminophosphanes to P-vinyl iminophosphoranes. Similarly P-alkylations of aminophosphanes with P-vinyl phosphane oxides and sulfides are also disclosed. Keywords: aminophosphanes, iminophosphoranes, michael addition, phosphorus