Reactions of dichlorocarbene with sterically protected 1-phosphaallene and 1,3-diphosphaallene
Abstract
Dichlorocarbene reacted with sterically protected 1-phosphaallene and 1,3-diphosphaallene to give a methylene-phosphirane and a methylene-diphosphirane, respectively; the former phosphirane was converted to 1-phosphabutatriene with butyllithium and the structure of the latter diphosphirane was determined by X-ray crystallography.