Reactions of Dialkylaminodichlorophosphines with Tetracarbonylferrate (II): Routes to Novel Phosphorus Bridging Carbonyl Derivatives and Triphosphine Complexes

Abstract

Reaction of iPr₂NPCl₂ with Na₂Fe(CO)₄ gives the phosphorus-bridging carbonyl derivative (iPr₂NP)₂COFe₂(CO)₆ or the triphosphine derivative (iPr₂NP)₃Fe₂(CO)₆ as the major product depending upon whether the reaction is run in diethyl ether or tetrahydrofuran, respectively. Reaction of Et₂NPCl₂ with Na₂Fe(CO)₄ gives totally different types of products resulting from migration of diethylamino groups. The chemistry of these and related compounds is discussed.