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Increased Efficiency in Cross-Metathesis Reactions of Sterically Hindered Olefins
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Section:Abstract
Efficiency in olefin cross-metathesis reactions is affected upon reducing the steric bulk of N-heterocyclic carbene ligands of ruthenium-based catalysts. For the formation of disubstituted olefins containing one or more allylic substituents, the catalyst bearing N-tolyl groups is more efficient than the corresponding N-mesityl catalyst. In contrast, the formation of trisubstituted olefins is more efficient using the N-mesityl-containing catalyst. A hypothesis to explain this dichotomy is described.
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- Published In Issue February 07, 2008
- Received October 29, 2007
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CHPh)(PCy3)22. These air- and water-tolerant complexes were shown to exhibit an increased ring-closing metathesis ...
