Synthesis and reactions of polymer-supported dicarbonyl(dienyl)(triphenylphosphine)iron(0) complexes

Abstract

A preparative method for novel polymer-supported Fe(η⁵-dienyl)(CO)₂(PPh₂–polystyrene) species from [Fe(η⁵-dienyl)(CO)₃]⁺(dienyl = C₆H₇, 2-MeOC₆H₆ or C₇H₉) cations has been developed. The polymer-supported complexes have been characterised by iron analysis and infrared and ³¹P NMR spectroscopic studies and shown to undergo nucleophilic attack on the dienyl ring in a similar fashion to that of their monomeric analogues. Treatment of the resultant adducts with trifluoroacetic acid regenerated the starting dienyliron polymers.