84547-96-6Relevant academic research and scientific papers
Hydrogen halides as nucleophilic agents for 3,4,5-trinitro-1H-pyrazoles
Dalinger, Igor L.,Vatsadze, Irina A.,Shkineva, Tatyana K.,Popova, Galina P.,Shevelev, Svyatoslav A.
, p. 43 - 44 (2012)
1-R-3,4,5-Trinitropyrazoles (R = H, Me) undergo nucleophilic substitution on treatment with concentrated hydrogen halide solutions to give 5-halo-1-R-3,4-dinitropyrazoles.
Fused heterocycle-based energetic salts: Alliance of pyrazole and 1,2,3-triazole
Yin, Ping,He, Chunlin,Shreeve, Jean'ne M.
, p. 1514 - 1519 (2016/01/30)
Energetic salts based on the 6-nitropyrazolo[3,4-d][1,2,3]triazol-3(4H)-olate anion were synthesized via a cyclization reaction of N-methyl or N,N′-ethylene substituted 4-chloro-3,5-dinitro pyrazole and hydrazine hydrate. All energetic salts were well characterized by differential scanning calorimetry (DSC), elemental analyses, and IR and multinuclear NMR spectroscopy. Energetic properties, including density, detonation velocity and detonation pressure, were evaluated for these nitrogen-rich fused heterocycles as a family of new energetic materials.
Efficient procedure for high-yield synthesis of 4-substituted 3,5-dinitropyrazoles using 4-chloro-3,5-dinitropyrazole
Dalinger, Igor L.,Vatsadze, Irina A.,Shkineva, Tatyana K.,Popova, Galina P.,Shevelev, Svyatoslav A.
experimental part, p. 2058 - 2064 (2012/08/07)
The transformations of readily available 4-chloro-3,5-dinitropyrazole and its N-methylated derivative under the action of anionic S-/O-nucleophiles and neutral N-nucleophiles were studied. Independent of the substrate's charge (anionic, R=H, or neutral, R
NITRATION OF 4-HALO-1-METHYLPYRAZOLES IN SULFURIC ACID
Perevalov, V. P.,Manaev, Yu. A.,Baryshnenkova, L. I.,Kanep, E. E.,Andreeva, M. A.,Stepanov, B. I.
, p. 1081 - 1083 (2007/10/02)
The rate of nitration of 4-bromo- and 4-chloro-1-metylpyrazoles with nitric acid in various concentrations of sulfuric acid is higher at position 5 than at position 3.
