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New chromogens of the ferroin type—VII: Some 3-substituted-1,2,4-triazines, 3,5-disubstituted-1,2,4-triazolines and triazoles, and 2,4- and 2,6-bis triazinyl and triazolinyl substituted pyridines

✍ Scribed by Alfred A. Schilt; Colin D. Chriswell; Tsailing A. Fang


Book ID
118991964
Publisher
Elsevier Science
Year
1974
Tongue
English
Weight
416 KB
Volume
21
Category
Article
ISSN
0039-9140

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✍ 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