Journal
ORGANIC & BIOMOLECULAR CHEMISTRY
Volume 11, Issue 11, Pages 1801-1804Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ob27398a
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Funding
- Robert A. Welch Foundation [T-1460]
- National Science Foundation [CHE-1213287]
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [1213287] Funding Source: National Science Foundation
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A novel ionic liquid-support organocatalyst, which contains the quaternary ammonium ion moiety, was recently developed and successfully applied to the asymmetric Michael reaction in the presence of a newly developed ionic liquid-supported (ILS) benzoic acid as co-catalyst. For the reactions studied, in which various aldehydes and nitroolefins were examined, excellent diastereo- and enantioselectivities were obtained with low catalyst loading. Also, the catalyst could be recycled for ten times without significant loss of enantioselectivity.
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