Generation anf trapping of a C-unsubstituted methylenephosphine sulphide

Abstract

The synthesis of a 7-phosphabicyclo[2.2.2.]octa-2,5-diene P-sulphide is described; on thermolysis in boiling toluene, this compound generates Ph–P(S)CH2 which can be trapped by methanol, 2,3-dimethylbutadiene, and benzylideneacetophenone.