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Enantioselective Copper-Catalyzed Conjugate Addition of Dialkyl Zinc to Nitro-Olefins

✍ Scribed by Alexakis, Alexandre; Benhaim, Cyril

Book ID
126951245
Publisher
American Chemical Society
Year
2000
Tongue
English
Weight
39 KB
Volume
2
Category
Article
ISSN
1523-7060

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Copper-catalyzed enantioselective conjug
Copper-catalyzed enantioselective conjugate addition of triethylaluminum to 2-cyclopentenone
✍ Liming Su; Xingshu Li; Wing Lai Chan; Xian Jia; Albert S.C. Chan πŸ“‚ Article πŸ“… 2003 πŸ› Elsevier Science 🌐 English βš– 150 KB

Bidentate phosphites were prepared starting from BINOL, H 8 -BINOL or 3,3%, 5,5%-tetra-tert-butyl-2,2%-biphenol. Utilization of these ligands in the copper-catalyzed enantioselective conjugate addition of triethylaluminum to 2-cyclopentenone afforded 3-ethylcyclopentanone in up to 94.0% ee.