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Triazoles and fused triazoles, III: Facile and efficient synthesis of 2,5-disubstituted-s-triazolo[3,4-b]-1,3,4-thiadiazoles

✍ Scribed by Ali A. El-Emam; Mohamed A. Moustafa; Hussein I. El-Subbagh; Mahmoud B. El-Ashmawy


Book ID
104951451
Publisher
Springer Vienna
Year
1990
Tongue
English
Weight
264 KB
Volume
121
Category
Article
ISSN
0026-9247

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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