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首页> 外文期刊>Journal of the Brazilian Chemical Society >Synthesis of N,O-Type Inherently Chiral Calix[4]arenes Substituted on the Lower Rim and their Organocatalysis Properties
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Synthesis of N,O-Type Inherently Chiral Calix[4]arenes Substituted on the Lower Rim and their Organocatalysis Properties

机译:N,O型固有手性杯[4]芳烃取代低级环的合成及其有机催化性能

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>This work presented the first study of organocatalytic behaviors of inherently chiral calix[4]arenes substituted at the lower rim. A pair of N, O-type enantiomers based on inherently chiral calix[4]arenes substituted at the lower rim were readily synthesized and applied to catalyze Henry reaction between aromatic aldehydes and nitromethane. Their organocatalytic reaction can afford the desired products in excellent yields (up to 99%) but poor enantioselectivities (up to 7.5% ee).
机译:>这项工作是对固有手性杯[4]芳烃在下边缘取代的有机催化行为的首次研究。一对容易合成的基于固有手性杯[4]芳烃的N,O型对映异构体在下边缘被取代,并被用于催化芳香醛和硝基甲烷之间的亨利反应。它们的有机催化反应可以以优异的产率(高达99%)提供所需的产物,但对映选择性差(高达7.5 ee)。

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