Redox-neutral indole annulation cascades

J Am Chem Soc. 2011 Feb 23;133(7):2100-3. doi: 10.1021/ja110713k. Epub 2011 Jan 31.

Abstract

Aminobenzaldehydes react with indoles in an unprecedented cascade reaction. This acid-catalyzed redox-neutral annulation proceeds via a condensation/1,5-hydride shift/ring-closure sequence. Polycyclic azepinoindoles and related compounds are obtained in a single step with good to excellent yields.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Acids / chemistry
  • Benzaldehydes / chemistry
  • Catalysis
  • Indoles / chemistry*
  • Molecular Structure
  • Oxidation-Reduction

Substances

  • Acids
  • Benzaldehydes
  • Indoles
  • 2-aminobenzaldehyde