N-N Torsion Angle in BINAM-Mono and Bis(Sulfonamide) Ligands and its Effect on the Catalytic Asymmetric Transfer Hydrogenation (ATH) of Aromatic Ketones

N-N Torsion Angle in BINAM-Mono and Bis(Sulfonamide) Ligands and its Effect on the Catalytic Asymmetric Transfer Hydrogenation (ATH) of Aromatic Ketones

Ligands L1 and L2 were synthesized from commercially available (R)-(+)-1,1'-binaphthyl-2,2'-diamine and tested with RhIII Cp* as catalysts in the asymmetric transfer hydrogenation of aromatic ketones in aqueous sodium formate. The results were compared with ligands derived from 1,2-, 1,4-,...

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Veröffentlicht in:Journal of the Mexican Chemical Society 2011-01, Vol.55 (1), p.16-20
Hauptverfasser: Barrón-Jaime, Angélica, Aguirre, Gerardo, Parra-Hake, Miguel, Chávez, Daniel, Madrigal, Domingo, Sanders, Belynda, Cooksy, Andrew L., Somanathan, Ratnasamy
Format: Artikel
Sprache:eng ; por
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Chemistry, Multidisciplinary
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Zusammenfassung:Ligands L1 and L2 were synthesized from commercially available (R)-(+)-1,1'-binaphthyl-2,2'-diamine and tested with RhIII Cp* as catalysts in the asymmetric transfer hydrogenation of aromatic ketones in aqueous sodium formate. The results were compared with ligands derived from 1,2-, 1,4-, and 1,6-diamines, and correlated to the metal chelate ring size and the N-N torsion angles determined by theoretical calculations.
ISSN:1870-249X