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Syntheses of triazolo[6,7-d]phthalide and triazolo[6,7-d]dihydrocoumarin

✍ Scribed by Alan R. Katritzky; Fu-Bao Ji; Wei-Qiang Fan; Paolo Beretta; M. Bertoldi


Book ID
112130470
Publisher
Journal of Heterocyclic Chemistry
Year
1992
Tongue
English
Weight
386 KB
Volume
29
Category
Article
ISSN
0022-152X

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Synthesis and tautomerization of 6,7-dih
✍ Sergey M. Desenko; Evgeny S. Gladkov; Svetlana V. Shishkina; Oleg V. Shishkin; S 📂 Article 📅 2006 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 327 KB

## Abstract magnified image The condensation of 5‐amino‐4‐phenyl‐1,2,3‐triazole (**1**) with chalcones **2a‐e** or 3‐dimethylamino‐propiophenone (**4f**) leads to the 6,7‐dihydro‐(1,2,3)‐triazolo[1,5‐__a__]pyrimidines **3a‐f.** The equilibrium of **3** and the tautomeric 4,7‐dihydro‐(1,2,3)‐triazo