The synthesis of chiral β-aryl-α,β-unsaturated amino alcohols via a Pd-catalyzed asymmetric allylic amination

Org Biomol Chem. 2013 Nov 14;11(42):7412-9. doi: 10.1039/c3ob41642a.

Abstract

Chiral β-aryl-α,β-unsaturated amino alcohols were synthesized via a Pd-catalyzed asymmetric allylic amination of 4-aryl-1,3-dioxolan-2-one using planar chiral 1,2-disubstituted ferrocene-based phosphinooxazolines as ligands. Under the optimized reaction conditions, a series of substrates were examined and the products were obtained in good to excellent yields (up to 92%) and enantioselectivities (up to 98% ee) under mild reaction conditions. The desired products were determined to be of (R)-configuration and could subsequently be transformed into compounds with interesting biological activity using simple transformations.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkenes / chemistry*
  • Amination
  • Amino Alcohols / chemical synthesis*
  • Amino Alcohols / chemistry*
  • Catalysis
  • Chemistry Techniques, Synthetic
  • Ferrous Compounds / chemistry
  • Ligands
  • Metallocenes
  • Oxazoles / chemistry
  • Palladium / chemistry*
  • Stereoisomerism
  • Substrate Specificity

Substances

  • Alkenes
  • Amino Alcohols
  • Ferrous Compounds
  • Ligands
  • Metallocenes
  • Oxazoles
  • Palladium
  • ferrocene