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A C -Symmetric chiral bis-sulfoxide ligand in a rhodium-catalyzed reaction: Asymmetric 1,4-addition of sodium tetraarylborates to chromenones

Journal of the American Chemical Society, ISSN: 0002-7863, Vol: 132, Issue: 13, Page: 4552-4553
2010
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Article Description

A new C -symmetric chiral bis-sulfoxide ligand, ( R , R )-1,2-bis( tert -butylsulfinyl)benzene, has been designed and prepared by the reaction of ( R )-benzyl tert -butylsulfoxide with ( R )-thiosulfinate. This ligand exhibits excellent enantioselectivities in the Rh-catalyzed asymmetric 1,4-addition reaction. In particular, the present work has realized access to optically pure flavanones for the first time through 1,4-addition of arylboronic reagents to chromenones. © 2010 American Chemical Society.

Bibliographic Details

Chen, Jun; Chen, Junmin; Lang, Feng; Zhang, Xiangyang; Cun, Linfeng; Zhu, Jin; Deng, Jingen; Liao, Jian

American Chemical Society (ACS)

Chemical Engineering; Chemistry; Biochemistry, Genetics and Molecular Biology

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