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Published September 10, 2006 | public
Journal Article

Model compounds of ruthenium-alkene intermediates in olefin metathesis reactions


The development of a model system to study ruthenium-olefin complexes relevant to the mechanism of olefin metathesis is reported. Upon addn. of 1,2-divinylbenzene to (H2IMes)(py2)(Cl)2Ru=CHPh (H2IMes = 1,3-dimesityl-4,5-dihydroimidazol-2- ylidene), two ruthenium-olefin adducts are formed. Based on 1H NMR spectroscopy expts. and X-ray crystallog. anal., these complexes are assigned as side-bound isomers in which the olefin and H2IMes ligands are coordinated cis to each another. Characterization of these complexes as well as other Ru-alkene adducts bearing NHCs will be presented.

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© 2006 American Chemical Society.

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October 23, 2023