Substitution reactions of the zerovalent iron complexes [Fe(η-C6H6)(PMe3)2] and [Fe(η-C6H6)(dmpe)](dmpe = Me2PCH2CH2PMe2)
Abstract
Substitution reactions of [Fe(η-C6H6)(PMe3)2] with two-electron donor ligands occur with loss of the PMe3 ligands, whereas those of the Me2PCH2CH2PMe2(dmpe) analogue [Fe(η-C6H6)(dmpe)] result in displacement of the η-benzene ligand. Treatment of [Fe(η-C6H6)(PMe3)2] with 6,6-diphenylfulvene gives the compound [Fe(η4-C5H4CPh2)(PMe3)3] which reacts reversibly with methanol to form the cationic species [Fe(η5-C5H4CHPh2)(PMe3)3]+.