Quantitative catalyst-substrate association relationships between metathesis molybdenum or ruthenium carbene complexes and theri substrates
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- Title
- Quantitative catalyst-substrate association relationships between metathesis molybdenum or ruthenium carbene complexes and theri substrates
- Author(s)
- K H Kim; T Ok; K Lee; H S Lee; Kyu Tae Chang; H Ihee; J H Sohn
- Bibliographic Citation
- Journal of American Chemical Society, vol. 132, no. 34, pp. 12027-12033
- Publication Year
- 2010
- Abstract
- Herein we present the long-sought quantitative catalyst-substrate association relationships based on experimentally measured quantitative association preferences of diverse metathesis Mo and Ru catalysts (Mo-1, Schrock Mo; Mo-2, Schrock-Hoveyda Mo; Ru-1, Grubbs first generation Ru; Ru-2, Grubbs second generation Ru; Ru-3:, Grubbs-Hoveyda first generation Ru; and Ru-4, Grubbs-Hoveyda second generation Ru) to their substrates (alkenes, alkynes and allenes), determined directly by a general method based on FRET principle. The determined substrate preferences are proved to be dependent on the molecular identity of the catalyst, exhibiting the preference order of alkyne > alkene > allene for Mo-1 and Mo-2, allene > alkene > alkyne for Ru-1 and Ru-3, and alkyne > allene > alkene for Ru-2 and Ru-4. The results enable us to probe metathesis mechanisms by answering issues in metathesis reactions including the controversial reaction initiation in enyne or allenyne metathesis
- ISSN
- 0002-7863
- Publisher
- Amer Chem Soc
- DOI
- http://dx.doi.org/10.1021/ja104193s
- Type
- Article
- Appears in Collections:
- 1. Journal Articles > Journal Articles
- Files in This Item:
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