Rh(I)-catalyzed asymmetric synthesis of 3-substituted isoindolinones through CO gas-free aminocarbonylation

J Org Chem. 2012 Mar 16;77(6):2911-23. doi: 10.1021/jo300201g. Epub 2012 Mar 7.

Abstract

A highly efficient and accessible synthesis of chiral 3-substituted isoindolinone frameworks is described. The synthesis involved the Rh(I)-catalyzed asymmetric arylation of boronic acids to 2-halobenzaldimines and the subsequent Rh(I)-catalyzed intramolecular aminocarbonylation of the resulting 2-halobenzylamines using an aldehyde as the carbonyl source. The method tolerates a variety of functional groups, yielding isoindolinone derivatives in moderate to high yields with high ee-values. In addition, two Rh(I)-catalyzed transformations could be efficiently accomplished in a one-pot sequence to give chiral isoindolinones by the simple addition of a ligand and an aldehyde after the Rh(I)-catalyzed asymmetric arylation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Carbon Monoxide / chemistry*
  • Catalysis
  • Gases / chemistry*
  • Isoindoles / chemical synthesis*
  • Isoindoles / chemistry*
  • Molecular Structure
  • Rhodium / chemistry*
  • Stereoisomerism

Substances

  • Gases
  • Isoindol-1-one
  • Isoindoles
  • Carbon Monoxide
  • Rhodium