The reactions of σ,η3-butadienylruthenium complexes with donor ligands and protons: structures of [RuC(Ph)C(Ph)-η2-{(Z)-C(Ph)CH(Ph)}{P(OMe)3}(η-C5H5)] and [RuC(O)C(Ph)C(Ph)-η2-{(Z)-C(Ph)CH(Ph)}{P(OMe)3}(η-C5H5)

Abstract

σ,η3(5e)-Butadienylruthenium complexes behave as masked σ,η2(3e)-butadienyl complexes in their reactions with P(OMe)3 and PhC2Ph, whereas, protons react on the ‘inside’ of the σ,η3-butadienyl chain at the α-carbenoid carbon; attempts to expel P(OMe)3 thermally from the resulting σ,η2(3e)-butadienyl complexes results instead in a zeta-H abstraction reaction.