New Method for the General Synthesis of [1,2,4]Triazolo[1,5-a]pyridines
Elliott Huntsman, Jaume Balsells*
*Process Research Department, Merck Research Laboratories, Merck & Co.,
Inc., P. O. Box 2000, Rahway, NJ 07065, USA, Email: Jaume_Balsells
merck.com
E. Huntsman, J. Balsells, Eur. J. Org. Chem., 2005, 3761-3765.
Abstract
[1,2,4]Triazolo[1,5-a]pyridines have been prepared in good yields from 2-aminopyridines by cyclization of N-(pyrid-2-yl)formamidoximes under mild reaction conditions with trifluoroacetic anhydride.
see article for more examples
Key Words
Nitrogen heterocycles, 1,2,4-Triazoles, Fused ring systems, Cyclization
ID: J24-Y2005-1450
