期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 76, 期 2, 页码 396-402出版社
AMER CHEMICAL SOC
DOI: 10.1021/jo101717m
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资金
- DST, India
- CSIR, India
From a systematic investigation involving the synthesis of a series of catalysts and screening studies, the organocatalyst 16, which is sterically hindered, contains a strong hydrogen-bonding site, and is endowed with reinforced chirality, is shown to promote the Biginelli cyclocondensation of aromatic as well as aliphatic aldehydes with ethyl acetoacetate and urea in a remarkably high enantioselectivity (ee ca. 94-99%).
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