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- Title
Synthesis of 2-Propanoyl-5-Norbornene in Pyridinium Ionic Liquids Catalyzed by Yttrium Salts.
- Authors
Bittner, Bożena; Pełech, Robert; Janus, Ewa; Milchert, Eugeniusz
- Abstract
The use of pyridinium ionic liquids as solvent and catalytic systems based on yttrium salts dissolved in pyridinium ionic liquids for the synthetically important Diels-Alder reaction between cyclopentadiene and ethyl-vinyl ketone was studied. Both chloride and triflate were active catalysts in cycloaddition, strongly improving the reaction rate and stereoselectivity. The catalytic system-1 mol% YCl/[C-3-Cpy][OTf] (N-butyl-3-methylpyridinium trifluoromethanesulfonate) proved to be stable under recycling conditions. Graphical Abstract: [Figure not available: see fulltext.]
- Subjects
IONIC liquids; CATALYSIS; YTTRIUM; PYRIDINIUM compounds; RING formation (Chemistry); CYCLOPENTADIENE; CHEMICAL reactions; DIELS-Alder reaction
- Publication
Catalysis Letters, 2012, Vol 142, Issue 3, p332
- ISSN
1011-372X
- Publication type
Article
- DOI
10.1007/s10562-012-0772-x