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Published August 3, 1998 | Supplemental Material
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Synthesis and Characterization of New Ruthenium-Based Olefin Metathesis Catalysts Coordinated with Bidentate Schiff-Base Ligands


A novel series of Schiff-base-substituted ruthenium carbene complexes have been prepared by the treatment of RuCl_2(=CHPh)(PCy_3)_2 with a variety of Schiff-base ligands as the thallium salts. Modification of the Schiff-base electronic and/or structural substituents allowed for the tuning of the complexes activities in olefin metathesis reactions. The structures of the complexes were unambiguously characterized by NMR studies and X-ray analysis. These newly prepared complexes are highly stable to air, moisture, and temperature and even exhibit catalytic activity in polar protic solvents.

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© 1998 American Chemical Society. Received October 17, 1997. Support has been provided by the National Institute of Health. L.J.II is grateful to the NIH for a Postdoctoral Fellowship.

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