期刊
ACS CATALYSIS
卷 9, 期 1, 页码 587-598出版社
AMER CHEMICAL SOC
DOI: 10.1021/acscatal.8b04783
关键词
olefin metathesis; ruthenium; ligands; N-heterocyclic carbenes; catalysis; selectivity; ethenolysis
资金
- National Science Centre (Poland) [DEC-2012/04/A/ST5/00594]
- European Union from the European Regional Development Fund
Second-generation ruthenium olefin metathesis catalysts were investigated with systematic variation of the unsymmetrical uNHC ligands. Depending on the uNHC steric bulk, the catalysts exhibited different activity and selectivity in metathesis reactions. DFT calculations and X-ray crystallographic data were used to understand the influence of uNHC ligand structure on the catalyst properties. Furthermore, the catalysts were examined in the context of reactions that are problematic for general-purpose Ru catalysts, including industrially important self-cross metathesis of alpha-olefins and ethenolysis of ethyl oleate.
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