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Published December 18, 2006 | public
Journal Article Open

Latent Olefin Metathesis Catalysts Featuring Chelating Alkylidenes


The synthesis of a series of ruthenium-based metathesis catalysts featuring imine donors chelated through the alkylidene group is described. The relative placement of the imine carbon‚ąínitrogen double bond (exocyclic vs endocyclic) has a major impact on the initiation behavior. When used in metathesis applications, catalysts with an endocyclic imine bond show latent behavior and a high degree of tunability. The incorporation of additional donor atoms is an additional strategy for controlling initiation behavior. These latent catalysts could be useful in high-temperature applications.

Additional Information

© 2006 American Chemical Society. Received 11 July 2006. Published online 14 November 2006. Published in print 1 December 2006. We thank Lawrence M. Henling for contributions to the crystallography and Materia, Inc. for generous donations of catalyst. This research was supported by the U.S. National Science Foundation.


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