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Organocatalytic and Direct Asymmetric Vinylogous Michael Addition of α,α-Dicyanoolefins to α,β-Unsaturated Aldehydes.

✍ Scribed by Jian-Wu Xie; Lei Yue; Dong Xue; Xiao-Li Ma; Ying-Chun Chen; Yong Wu; Jin Zhu; Jin-Gen Deng

Publisher
John Wiley and Sons
Year
2006
Weight
26 KB
Volume
37
Category
Article
ISSN
0931-7597

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Enantioselective Michael Addition of Dicyanoolefins to α,β-Unsaturated Aldehydes in Aqueous Medium
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## Abstract A pool of water‐compatible catalysts, namely dialkyl‐(__S__)‐prolinols, has been developed for the enantioselective direct vinylogous Michael addition reaction of vinylmalononitriles to α,β‐unsaturated aldehydes in aqueous medium. In many cases, the products can be obtained in almost op