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Org Lett. 2008 Jul 3;10(13):2693-6. doi: 10.1021/ol800824h. Epub 2008 May 30.

Olefin metathesis catalyst: stabilization effect of backbone substitutions of N-heterocyclic carbene.

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  • 1The Arnold and Mabel Beckman Laboratories for Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA.


Ruthenium olefin metathesis catalysts bearing an N-phenyl-substituted N-heterocyclic carbene (NHC) ligand that are resistant to decomposition through C-H activation have been prepared and tested in ring closing metathesis (RCM), cross metathesis (CM), and ROMP reactions. The N, N'-diphenyl-substituted NHC complex proved to be one of the most efficient catalysts in RCM to form tetrasubstituted olefins.

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