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An efficient one-step method for the synthesis of 2-(indolizin-2-yl)benzimidazoles from quinoxalinones and α-picoline via a novel rearrangement

Authors
Journal
Tetrahedron Letters
0040-4039
Publisher
Elsevier
Publication Date
Volume
49
Issue
43
Identifiers
DOI: 10.1016/j.tetlet.2008.08.032
Keywords
  • Quinoxalin-2-One
  • Benzimidazole
  • α-Picoline
  • Ring Contraction
  • Rearrangement
  • Indolizinylbenzimidazoles
  • 1H Nmr Data
  • X-Ray Diffraction Analysis

Abstract

Abstract A highly efficient one-step and versatile method for the synthesis of 2-(indolizin-2-yl)benzimidazoles has been developed on the basis of the novel ring contraction of 3-arylchloromethyl- and alkylchloromethylquinoxalin-2-ones with α -picoline.

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