New methods in asymmetric catalysis based on new hemi-labile bidentate ligands*

نویسندگان

  • André B. Charette
  • Alexandre Côté
  • Jean-Nicolas Desrosiers
  • Isabelle Bonnaventure
  • Vincent N. G. Lindsay
  • Caroline Lauzon
  • Jad Tannous
  • Alessandro A. Boezio
چکیده

Chiral bidentate hemi-labile bis(phosphine) monoxide ligands were shown to be quite effective in various copper-catalyzed transformations. Among them, the nucleophilic addition to imines, the conjugate addition to α,β-unsaturated nitro derivatives, and the conjugate reduction of α,β-unsaturated sulfones generally gave good to excellent yields and high enantiomeric excesses.

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تاریخ انتشار 2008