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Unusual formation of 4-diazo-3-nitriminopyrazoles upon acid nitration of pyrazolo[3,4-d][1,2,3]triazoles

Tigran E Khoranyan 1
Tigran E Khoranyan
, 
Alexander Vasilyvich Kormanov 1
Alexander Vasilyvich Kormanov
, 
Alevtina Nikolaevna Pivkina 2
Alevtina Nikolaevna Pivkina
, 
Kirill Yu Suponitsky 1
Kirill Yu Suponitsky
, 
Igor L'vovich Dalinger 1
Igor L'vovich Dalinger
2 N.N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Moscow, Russian Federation
10.71267/mencom.7628
Published 2025-03-31
Communication , Volume 35, Issue 3, 249-251
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Khoranyan T. E. et al. Unusual formation of 4-diazo-3-nitriminopyrazoles upon acid nitration of pyrazolo[3,4-d][1,2,3]triazoles // Mendeleev Communications. 2025. Vol. 35. No. 3. pp. 249-251.
GOST all authors (up to 50) Copy
Khoranyan T. E., Kormanov A. V., Pivkina A. N., Suponitsky K. Yu., Dalinger I. L. Unusual formation of 4-diazo-3-nitriminopyrazoles upon acid nitration of pyrazolo[3,4-d][1,2,3]triazoles // Mendeleev Communications. 2025. Vol. 35. No. 3. pp. 249-251.
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TY - JOUR
DO - 10.71267/mencom.7628
UR - https://mendcomm.colab.ws/publications/10.71267/mencom.7628
TI - Unusual formation of 4-diazo-3-nitriminopyrazoles upon acid nitration of pyrazolo[3,4-d][1,2,3]triazoles
T2 - Mendeleev Communications
AU - Khoranyan, Tigran E
AU - Kormanov, Alexander Vasilyvich
AU - Pivkina, Alevtina Nikolaevna
AU - Suponitsky, Kirill Yu
AU - Dalinger, Igor L'vovich
PY - 2025
DA - 2025/03/31
PB - Mendeleev Communications
SP - 249-251
IS - 3
VL - 35
ER -
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@article{2025_Khoranyan,
author = {Tigran E Khoranyan and Alexander Vasilyvich Kormanov and Alevtina Nikolaevna Pivkina and Kirill Yu Suponitsky and Igor L'vovich Dalinger},
title = {Unusual formation of 4-diazo-3-nitriminopyrazoles upon acid nitration of pyrazolo[3,4-d][1,2,3]triazoles},
journal = {Mendeleev Communications},
year = {2025},
volume = {35},
publisher = {Mendeleev Communications},
month = {Mar},
url = {https://mendcomm.colab.ws/publications/10.71267/mencom.7628},
number = {3},
pages = {249--251},
doi = {10.71267/mencom.7628}
}
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Khoranyan, Tigran E., et al. “Unusual formation of 4-diazo-3-nitriminopyrazoles upon acid nitration of pyrazolo[3,4-d][1,2,3]triazoles.” Mendeleev Communications, vol. 35, no. 3, Mar. 2025, pp. 249-251. https://mendcomm.colab.ws/publications/10.71267/mencom.7628.

Keywords

1,2,3-triazoles
differential scanning calorimetry
energetic properties
nitration
pyrazoles
pyrazolo[3,4-d][1,2,3]triazoles
ring opening
X-ray diffraction analysis

Abstract

Nitration of 6-R-4-phenylpyrazolo[3,4-d][1,2,3]triazoles at the phenyl substituent is accompanied by the triazole ring opening to give new 3-R-4-diazo-1-(di)nitrophenylpyrazole- 5-nitrimines. Chemical and physicochemical properties of the prepared compounds are reported.

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