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New chromogens of the ferroin type—VIII Some di- and trisubstituted 1,2,4-triazines, 3-substituted-9H-indeno[1,2-e]-1,2,4-triazin-9-ones, and di- and trisubstituted 1,2,4-triazolines

✍ Scribed by Alfred A. Schilt; Tsailing A. Yang; Jeng Fu Wu; Diane M. Nitzki

Book ID
118992500
Publisher
Elsevier Science
Year
1977
Tongue
English
Weight
301 KB
Volume
24
Category
Article
ISSN
0039-9140

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✍ Frank T. Coppo; Maged M. Fawzi 📂 Article 📅 1997 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 231 KB 👁 1 views

## Abstract The reaction of benzoyl isothiocyanates and methoxycarbonyl isothiocyanate with 4‐amino‐4,5‐dihydro‐3‐(methylthio)‐1,2,4‐triazin‐5‐ones in acetonitrile gave several substituted 4__H__‐1,3,4‐thiadiazolo[2,3‐__c__]‐1,2,4‐triazin‐4‐ones VIa‐h instead of the expected thioureas. In addition,