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

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journal contribution
posted on 02.08.2000, 00:00 by Alexandre Alexakis, Cyril Benhaim
The copper-catalyzed asymmetric conjugate addition of dialkylzinc onto various nitro-olefins has been carried out with excellent results. An enantiomeric excess of up to 94% was obtained using 0.5% Cu(OTf)2 and 1% of chiral trivalent phosphorus ligand.