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Benzylideneruthenium Complexes Bearing Pyridine‐Based Ligands and Their Influence on the Formation of Mono‐ or Bis(pyridine) Complexes
Author(s) -
Zhang WenZhen,
He Ren,
Zhang Rong
Publication year - 2007
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200700631
Subject(s) - chemistry , pyridine , metathesis , ligand (biochemistry) , acrylonitrile , carbene , salt metathesis reaction , derivative (finance) , medicinal chemistry , catalysis , ring (chemistry) , polymer chemistry , stereochemistry , organic chemistry , polymerization , copolymer , receptor , biochemistry , economics , financial economics , polymer
Abstract Benzylideneruthenium complexes bearing the N‐heterocyclic carbene (NHC) ligand 1,3‐bis(2,6‐dimethylphenyl)‐4,5‐dihydroimidazol‐2‐ylidene (H 2 IMe) and one or two pyridine‐based ligands have been prepared by treating [RuCl 2 (=CHPh)(H 2 IMe)(PPh 3 )] 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)