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Water-Compatible Iminium Activation: Highly Enantioselective Organocatalytic Michael Addition of Malonates to α,β-Unsaturated Enones

Zhifeng Mao, Yaomei Jia, Wenyi Li and Rui Wang*

*State Key Laboratory of Applied Organic Chemistry and Institute of Biochemistry and Molecular Biology, Lanzhou University, Lanzhou, 730000 China, Email: wangruilzu.edu.cn

Z. Mao, Y. Jia, W. Li, R. Wang, J. Org. Chem., 2010, 75, 7428-7430.

DOI: 10.1021/jo101188m


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Abstract

A highly enantioselective Michael addition of malonates to α,β-unsaturated ketones in water is catalyzed by a primary-secondary diamine catalyst containing a long alkyl chain. This asymmetric Michael addition process allows the conversion of various α,β-unsaturated ketones.

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Key Words

1,4-addition, green chemistry, organocatalysis


ID: J42-Y2010-3010