Enantioselective synthesis of multisubstituted biaryl skeleton by chiral phosphoric acid catalyzed desymmetrization/kinetic resolution sequence

J Am Chem Soc. 2013 Mar 13;135(10):3964-70. doi: 10.1021/ja311902f. Epub 2013 Feb 26.

Abstract

Described herein is the enantioselective synthesis of multisubstituted biaryl derivatives by chiral phosphoric acid catalyzed asymmetric bromination. Two asymmetric reactions (desymmetrization and kinetic resolution) proceeded successively to afford chiral biaryls in excellent enantioselectivities (up to 99% ee). Both experimental and computational studies suggested that this excellent selectivity could be achieved via a highly organized hydrogen bond network among a substrate, a catalyst (chiral phosphoric acid), and a brominating reagent (N-bromophthalimide).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Catalysis
  • Hydrocarbons, Aromatic / chemical synthesis*
  • Hydrocarbons, Aromatic / chemistry
  • Hydrogen Bonding
  • Kinetics
  • Molecular Structure
  • Phosphoric Acids / chemistry*
  • Stereoisomerism

Substances

  • Hydrocarbons, Aromatic
  • Phosphoric Acids
  • phosphoric acid