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(R)-3,5-diCF3-SYNPHOS and (R)-p-CF3-SYNPHOS, Electron-Poor Diphosphines for Efficient Room Temperature Rh-Catalyzed Asymmetric Conjugate Addition of Arylboronic Acids
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(R)-3,5-diCF3-SYNPHOS and (R)-p-CF3-SYNPHOS, Electron-Poor Diphosphines for Efficient Room Temperature Rh-Catalyzed Asymmetric Conjugate Addition of Arylboronic Acids

Farouk Berhal, Olivier Esseiva, Charles-Henri Martin, Hitoshi Tone, Jean-Pierre Genet, Tahar Ayad et Virginie Ratovelomanana-Vidal
Organic letters, Vol.13(11), pp.2806-2809
03/06/2011
DOI: https://doi.org/10.1021/ol200495a
PMID: 21539345

Résumé

Chemistry Chemistry, Organic Physical Sciences Science & Technology
Two new atropisomeric electron-poor chiral diphosphine ligand analogues of SYNPHOS were prepared, and their electronic properties are described. These two ligands afforded high performance for the Rh-catalyzed asymmetric 1,4-addition of arylboronic acids to alpha,beta-unsaturated carbonyl compounds at room temperature.

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