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The synthesis of 4-acylamino-1,2,4-triazole derivatives in the reaction of α-hydroxyacid hydrazidesand orthoesters

✍ Scribed by W. Zieliński; A. Kudelkoand; W. Czardybon

Book ID: 102344927
Publisher: Journal of Heterocyclic Chemistry
Year: 2005
Tongue: English
Weight: 121 KB
Volume: 42
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570420720

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✦ Synopsis

The reaction of α-hydroxyacid hydrazides and orthoesters in ethanol-acetic acid solution has been studied and a series of 4-acylamino-1,2,4-triazoles has been obtained as the final products. Some acyclic intermediates: 1-acyl-2-ethoxymethylenehydrazines and N,N'-bis(methanecarbonylamino)formamidine derivative have been also separated during the process. The structures of products was confirmed by typical spectroscopic methods and X-ray analysis.

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