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ChemInform Abstract: Asymmetric Michael Addition of 2-Nitropropane to a Chalcone Catalyzed by Chiral Crown Ethers Incorporating a D-Glucose Unit.

✍ Scribed by P. BAKO; L. TOEKE; A. SZOELLOESY; P. BOMBICZ


Publisher
John Wiley and Sons
Year
2010
Weight
29 KB
Volume
28
Category
Article
ISSN
0931-7597

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Asymmetric Michael addition of 2-nitropr
✍ PΓ©ter BakΓ³; LΓ‘szlΓ³ TΓΆke; Áron SzΓΆllΓΆsy; Petra Bombicz πŸ“‚ Article πŸ“… 1997 πŸ› John Wiley and Sons 🌐 English βš– 173 KB πŸ‘ 1 views

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