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Published April 12, 2007 | Supplemental Material
Journal Article Open

Highly Efficient Ruthenium Catalysts for the Formation of Tetrasubstituted Olefins via Ring-Closing Metathesis


A series of ruthenium-based metathesis catalysts with N-heterocyclic carbene (NHC) ligands have been prepared in which the N-aryl groups have been changed from mesityl to mono-ortho-substituted phenyl (e.g., tolyl). These new catalysts offer an exceptional increase in activity for the formation of tetrasubstituted olefins via ring-closing metathesis (RCM), while maintaining high levels of activity in ring-closing metathesis (RCM) reactions that generate di- and trisubstituted olefins.

Additional Information

© 2007 American Chemical Society. Received 28 February 2007. Published online 23 March 2007. Published in print 1 April 2007. We gratefully acknowledge financial support from NIH Grant to R.H.G. and an NIH postdoctoral fellowship to I.C.S. We thank Larry Henling and Dr. Michael Day (California Institute of Technology) for X-ray structural analysis.

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Supplemental Material - ol0705144si20070308_105952.pdf


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