Catalytic asymmetric synthesis of pyrroloindolines via a rhodium(II)-catalyzed annulation of indoles

J Am Chem Soc. 2013 May 8;135(18):6802-5. doi: 10.1021/ja4025337. Epub 2013 Apr 30.

Abstract

Herein we report the synthesis of pyrroloindolines via a catalytic enantioselective formal [3+2] cycloaddition of C(3)-substituted indoles. This methodology utilizes 4-aryl-1-sulfonyl-1,2,3-triazoles as carbenoid precursors and the rhodium(II)-tetracarboxylate catalyst Rh2(S-PTAD)4. A variety of aryl-substituted pyrroloindolines were prepared in good yields and with high levels of enantioinduction.

Publication types

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

MeSH terms

  • Catalysis
  • Indoles / chemical synthesis*
  • Indoles / chemistry*
  • Molecular Structure
  • Organometallic Compounds / chemistry*
  • Pyrroles / chemical synthesis*
  • Pyrroles / chemistry
  • Rhodium / chemistry*
  • Stereoisomerism

Substances

  • Indoles
  • Organometallic Compounds
  • Pyrroles
  • Rhodium