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New synthesis of 4,5-dihydro-1,2,4-triazin-3(2H)-one derivatives through cyclic transformation of 1,3,4-oxadiazol-2(3H)-one derivatives

✍ Scribed by René Milcent; Béatrice Yver; Géo Barbier

Book ID
112130377
Publisher
Journal of Heterocyclic Chemistry
Year
1992
Tongue
English
Weight
224 KB
Volume
29
Category
Article
ISSN
0022-152X

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✍ François Chau; Jean-Claude Malanda; René Milcent 📂 Article 📅 1997 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 265 KB 👁 1 views

## Abstract The 5‐aryl(or methyl)‐3‐phenylcarbamoyl‐1,3,4‐oxadiazol‐2(3__H__)‐ones 2, in the presence of sodium hydride in anhydrous dimethylformamide, were transformed into 1‐benzamido(or acetamido)‐3,5‐diphenyl‐1,3,5‐triazine‐2,4,6‐trione derivatives 7 in poor yields. However, compounds 7 were ob