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A solution of structural ambiguity: s-Triazolo[1,5-a] – and s-triazolo[4.3-a] pyrimidines

✍ Scribed by Thomas Novinson; Takayuki Okabe; Roland K. Robins; Phoebe Dea

Book ID
112123612
Publisher
Journal of Heterocyclic Chemistry
Year
1975
Tongue
English
Weight
271 KB
Volume
12
Category
Article
ISSN
0022-152X

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📜 SIMILAR VOLUMES

1,2,4-Triazolo[1,5-a]pyrimidin-3-ium chl
1,2,4-Triazolo[1,5-a]pyrimidin-3-ium chloride
✍ Maldonado, Carmen R. ;Quirós, Miguel ;Salas, Juan M. 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 189 KB

The cation of the title molecule, C~5~H~5~N~4~ ^+^·Cl^−^, is strictly planar; it occupies a special position on a mirror plane. The protonation of the heterocycle takes place, as expected, at an N atom of the imidazole ring. This H atom is hydrogen bonded to the chloride anion.