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The reaction of aroylhydrazines with N-phenylsulfonylarenehydrazonoyl chlorides. A route to substituted 4-amino-(4H)-1,2,4-triazoles and 1,3,4-oxadiazoles

✍ Scribed by Ahmad S. Shawali; Abdel-Gawad A. Fahmi


Book ID
112125116
Publisher
Journal of Heterocyclic Chemistry
Year
1977
Tongue
English
Weight
233 KB
Volume
14
Category
Article
ISSN
0022-152X

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1,2,4-Triazoles. Improved synthesis of 5
✍ Francesco Paolo Invidiata; Giancarlo FurnΓ‘; Ilaria Lampronti; Daniele Simoni πŸ“‚ Article πŸ“… 1997 πŸ› Journal of Heterocyclic Chemistry 🌐 English βš– 243 KB

## Abstract The reaction of thiocarbohydrazide with carboxylic acids at the melting temperature allows an improved preparation of the S‐substituted 4‐amino‐3‐mercapto‐1,2,4‐triazole heterocycles. The crude 4‐amino‐5‐mercapto‐1,2,4‐triazoles react easily with carboxylic acids or carboxylic acid chlo