4.4 Article

A convenient synthesis of pyrrolopyridines and 2-substituted indoles by gold-catalyzed cycloisomerization

Journal

TETRAHEDRON LETTERS
Volume 49, Issue 50, Pages 7213-7216

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2008.10.013

Keywords

cycloisomerization; Pyrrolopyridine; 2-Substituted indole; AuCl3

Funding

  1. CSIR (New Delhi)
  2. DST (New Delhi)

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We have developed a gold-catalyzed intramolecular cyclization of variously Substituted acetylenic amines under mild conditions, which yields pyrrolopyridines and 2-substituted indoles, quantitatively. The cycloisomerization of acetylenic amines was achieved with AuCl3 as catalyst Without the use of base, acid or N-protecting group. (C) 2008 Elsevier Ltd. All rights reserved.

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