Formation of a Phospha-alkyne via Migration of the Phenyl Group from Phosphorus to Carbon

Abstract

Abstract E-2-Chloro-1-(2,4,6-tri-t-butylphenyl)-1-phospha-ethylene was allowed to react with t-butyllithium as a base to give 2-(2,4,6-tri-t-butylphenyl)-1-phospha-acetylene, suggesting the generation of a phosphorus analogue of isonitrile followed by migration of the phenyl group from phosphorus to carbon.