Abstract
AbstractBenzylideneruthenium complexes bearing the N‐heterocyclic carbene (NHC) ligand 1,3‐bis(2,6‐dimethylphenyl)‐4,5‐dihydroimidazol‐2‐ylidene (H2IMe) and one or two pyridine‐based ligands have been prepared by treating [RuCl2(=CHPh)(H2IMe)(PPh3)] with the corresponding pyridine derivative. X‐ray crystallographic and mass spectrometric evidence is used to investigate the interconversion between mono‐ and bis(pyridine) complexes and the influence of the pyridine ligand on the formation of these complexes. The catalytic activity of these complexes has been tested in the ring‐closing metathesis (RCM) reaction of diallylmalononitrile and the cross metathesis (CM) reaction of acrylonitrile with terminal olefins.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
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