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5-Amino-1,2,3,4-thiatriazole: Its acylation with chloroformates and chlorothioformates as a route to 1,2,4-thiadiazoles and 1,6,6a,Δ4-trithia-3,4-diazapentalenes

✍ Scribed by Heinz Graubaum; Helmuth Seeboth; Peter Zalupsky


Book ID
104951007
Publisher
Springer Vienna
Year
1989
Tongue
English
Weight
383 KB
Volume
120
Category
Article
ISSN
0026-9247

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1,2,4-Triazoles. Improved synthesis of 5
✍ Francesco Paolo Invidiata; Giancarlo Furná; Ilaria Lampronti; Daniele Simoni 📂 Article 📅 1997 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 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