η-Benzenebis(trimethylphosphine)iron as a precursor to Fe(η-C5R5)(PMe3)2 derivatives, R = H,Me: the equilibrium [Fe](PMe3)Et ⇌[Fe](η-C2H4)H + PMe3, where [Fe]= Fe(η-C5Me5)(PMe3)
Abstract
The compounds Fe(η-C5R5)(PMe3)2X, where R = H, Me, X = H, Cl, Me, Et, and Fe(CH2CH2-η5-C5H4)(PMe3)2 are readily prepared from Fe(η-benzene)(PMe3)2; the equilibrium [Fe](PMe3)Et ⇌[Fe](η-C2H4)H + PMe3, where [Fe]= Fe(η-C5Me5)(PMe3), is described.