Cycloaromatization approach to polysubstituted indolizines from 2-acetylpyrroles: decoration of the pyridine unit

J Org Chem. 2013 Feb 1;78(3):1283-8. doi: 10.1021/jo302590a. Epub 2013 Jan 16.

Abstract

A new synthetic route to indolizines with various substituents on the pyridine moiety was developed by utilizing a facile cycloaromatization of 2-acetylpyrrole derivatives. Without isolation, the resulting intermediates were allowed to react with various electrophiles to afford a range of indolizines. In particular, Suzuki-Miyaura cross-coupling of O-triflates with (hetero)arylboronic acids permitted introduction of diverse substituents at the C8 position of an indolizine skeleton.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Catalysis
  • Indolizines / chemical synthesis*
  • Indolizines / chemistry*
  • Molecular Structure
  • Pyridines / chemistry*
  • Pyrroles / chemistry*
  • Stereoisomerism

Substances

  • Indolizines
  • Pyridines
  • Pyrroles
  • 2-acetylpyrrole