Strong Evidence for a Transient Phosphinidenoid Complex

摘要

Carbenoids (I,Scheme 1) are versatile reactive intermediates in organic synthesis This situation does not hold for related phosphinidenoids (II) and mononuclear transition-metal complexes thereof (III).Their potential 1,1-elimination products however-terminal phosphinidene complexes (IV)-are important and well-established building blocks in organophosphorus chemistry,and these complexes are accessible from a variety of precursors.