期刊
ORGANIC LETTERS
卷 8, 期 10, 页码 2003-2006出版社
AMER CHEMICAL SOC
DOI: 10.1021/ol060304b
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资金
- NIGMS NIH HHS [P50 GM067041] Funding Source: Medline
The cinchona alkaloids catalyze direct asymmetric Mannich reactions of cyclic 1,3-dicarbonyl compounds with acyl imines to afford a-quaternary carbon-bearing reaction products in yields of up to 98%, a diastereomeric excess of 90% or greater, and enantioselectivities up to 99% ee. A model is proposed that accounts for both the observed diastereoselectivities and the enantioselectivities for the reactions.
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