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Synfacts 2011(10): 1106-1106  
DOI: 10.1055/s-0030-1261066
Metal-Catalyzed Asymmetric Synthesis and Stereoselective Reactions
© Georg Thieme Verlag Stuttgart ˙ New York

N,N′-Dioxide-Ni Complex Catalyzed Asymmetric Michael Addition

Contributor(s): Hisashi Yamamoto, Jiajing Tan
Z. H. Deng, J. H. Feng, W. D. Cao, X. H. Liu, L. L. Lin*, X. M. Feng*
Sichuan University, Chengdu, P. R. of China
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Publikationsdatum:
20. September 2011 (online)

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Significance

The authors report a highly enan­tioselective N,N′-dioxide-nickel complex catalyzed Michael addition of cyclic 1,3-dicarbonyl compounds to unsaturated keto esters. The corresponding adducts bearing warfarin analogues were obtained in good yields and enantioselectivities.