Phosphonium Diylides in Organic Synthesis

Abstract

Phosphonium diylides afford a general synthetic method for numerous α,β-unsaturated functions, the double bond being di- or trisubstituted. The diamino-phosphonium diylides, obtained in the case of stabilized ones by a new variation of the Staudinger reaction, are also interesting tools in synthesis because they allow access to, for example ketenimines, phosphorus guanidines or triazaphosphinimines.

Keywords::

• phosphonium diylides
• Staudinger Reaction
• cetenimines
• phosphorus guanidines
• triazaphosphinimines
• α,β-unsaturated functions