Organocatalytic asymmetric Friedel-Crafts alkylation of indoles with simple alpha,beta-unsaturated ketones

Org Lett. 2007 Mar 29;9(7):1403-5. doi: 10.1021/ol070309o. Epub 2007 Mar 9.

Abstract

[structure: see text]. The first general and highly enantioselective organocatalytic Friedel-Crafts alkylation of indoles with simple alpha,beta-unsaturated ketones has been accomplished. Central to these studies has been the identification of a new catalyst amine salt, in which both the cation and the anion are chiral, that exhibits high reactivity and selectivity for iminium ion catalysis.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkylation
  • Amines / chemistry
  • Catalysis
  • Imines / chemistry
  • Indoles / chemical synthesis
  • Indoles / chemistry*
  • Ketones / chemistry*
  • Molecular Structure
  • Stereoisomerism

Substances

  • Amines
  • Imines
  • Indoles
  • Ketones