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- Title
Modulation of Olefin Metathesis Reactions by Chelation.
- Authors
Scherbakow, Swetlana; Keller, Manfred; Bannwarth, Willi
- Abstract
We describe the modulation of catalytic activities by adjacent chelating entities as a new and hitherto unknown principle. It is demonstrated for ring-closing metathesis (RCM) as well as for cross metathesis (CM) reactions. For this purpose, we have modified a Hoveyda-type metathesis catalyst by employing two different chelators. Complexation of the chelators led to an electron-withdrawing effect that resulted in enhanced catalytic activity. This enhancement was dependent on the complexed metal ion and allowed a gradual adjustment of the activity of the catalyst. The application of this new approach might be extendable to other catalytic systems as well.
- Subjects
METATHESIS reactions; ALKENES; CHELATION; RUTHENIUM; LIGANDS (Chemistry); HOMOGENEOUS catalysis
- Publication
European Journal of Organic Chemistry, 2014, Vol 2014, Issue 24, p5331
- ISSN
1434-193X
- Publication type
Article
- DOI
10.1002/ejoc.201402319