Reactivity of Heterodiene Metal Carbonyl Complexes

Addition of hard nucleophiles to iron tricarbonyl complexes of α,β -unsaturated ketones and iron tetracarbonyl complexes of α,β -unsaturated esters produces γ -ketocarbonyl compounds. Nucleophilic addition to iron tricarbonyl complexes of α,β -unsaturated imines leads either to pyrrole or β,γ -unsaturated amine formation.