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- Title
Synthesis and transformations of 3(5)-(3-methylfurazan-4-yl)-4-nitro-1 Н-pyrazole-5(3)-carboxylic acid.
- Authors
Kormanov, Alexandr; Lipilin, Dmitry; Shkineva, Tatyana; Vatsadze, Irina; Kozeev, Andrei; Dalinger, Igor
- Abstract
Methyl 3-(4-methylfurazan-3-yl)-1 Н-pyrazole-5-carboxylate was obtained by condensation of 3-acetyl-4-methylfurazan with diethyl oxalate with subsequent treatment of the β-diketoester intermediate with hydrazine, and was nitrated to produce 3(5)-(3-methylfurazan-4-yl)-4-nitro-1 Н-pyrazole-5(3)-carboxylic acid. The amide of this acid was used in a Hofmann rearrangement, providing 3-amino-5-(4-methylfurazan-3-yl)-4-nitro-1 Н-pyrazole, nitration of which yielded the respective nitramine.
- Subjects
FURAZANS; NITROAMINES; CARBOXYLIC acids; HOFMANN reaction; NITRATION
- Publication
Chemistry of Heterocyclic Compounds, 2017, Vol 53, Issue 8, p876
- ISSN
0009-3122
- Publication type
Article
- DOI
10.1007/s10593-017-2141-6