ChemInform Abstract: Asymmetric Michael Addition and Deracemization of Enolate by Chiral Crown Ether.
β Scribed by L. TOKE; P. BAKO; G. M. KESERU; M. ALBERT; L. FENICHEL
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 32 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0931-7597
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π SIMILAR VOLUMES
Michael addition of 2-nitropropane 4 to a chalcone 3 catalyzed by crown ethers incorporating two glucose units (of 1 type) afforded the adduct 5 with an R-enantiomer excess (28% ee) while the aza-crown ethers containing one glucose unit (of 2 type) gave the same adduct favoring the S-enantiomer unde
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