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Journal articles on the topic 'Nitropyrazole'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 February 2022

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1

Li, Ya Jin, Yong Xiang Li, Yan Hong Wang, et al. "Theoretical Calculation of the Detonation Parameters of Nitropyrazoles Explosives." Advanced Materials Research 853 (December 2013): 395–400. http://dx.doi.org/10.4028/www.scientific.net/amr.853.395.

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A series of new nitropyrazole explosive molecules were designed with N-nitropyrazole as structural unit, The detonation parameters of nitropyrazoles explosives, such as detonation velocity, detonation pressure, detonation temperature, detonation volume, were estimated theoretically in different methods, The calculated detonation pressure was corresponded with high energy density material (HEDM). Their detonation velocity and detonation pressure are between those of TATB and HMX. These compounds have higher detonation temperature and heat of detonation compared with HMX and TATB. It was predict

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2

Tang, Yongxing, Jinchao Ma, Gregory H. Imler, Damon A. Parrish, and Jean'ne M. Shreeve. "Versatile functionalization of 3,5-diamino-4-nitropyrazole for promising insensitive energetic compounds." Dalton Transactions 48, no. 38 (2019): 14490–96. http://dx.doi.org/10.1039/c9dt03138c.

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3

Král, Vladimír, Mikhail Ivanovich Kanishchev, Viktor Vladimirovich Semenov, Zdeněk Arnold, Svyatoslav Arkadievich Shevelev, and Albert Aleksandrovich Fainzilberg. "Synthetic utilization of N-diformylmethylazoles: The preparation of 1-heteryl-4-nitropyrazoles." Collection of Czechoslovak Chemical Communications 53, no. 7 (1988): 1529–33. http://dx.doi.org/10.1135/cccc19881529.

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4

Boncel, Sławomir, Kinga Saletra, Barbara Hefczyc, and Krzysztof Z. Walczak. "Michael-type addition of azoles of broad-scale acidity to methyl acrylate." Beilstein Journal of Organic Chemistry 7 (February 8, 2011): 173–78. http://dx.doi.org/10.3762/bjoc.7.24.

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An optimisation of Michael-type addition of azole derivatives of broad-scale acidity – ranging from 5.20 to 15.00 pK a units – namely 4-nitropyrazole, 3,5-dimethyl-4-nitropyrazole, 4(5)-nitroimidazole, 4,5-diphenylimidazole, 4,5-dicyanoimidazole, 2-methyl-4(5)-nitroimidazole, 5(4)-bromo-2-methyl-4(5)-nitroimidazole and 3-nitro-1,2,4-triazole to methyl acrylate as an acceptor was carried out. The optimisation process involved the use of an appropriate basic catalyst (DBU, DIPEA, NaOH, NaH, TEDA), a donor/base/acceptor ratio and the reaction temperature. The reactions were performed in DMF as so

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5

Vatsadze, Irina A., Olga V. Serushkina, Mikhail D. Dutov та ін. "Synthesis of 1-(N-nitropyrazolyl)-1Н-tetrazoles – a new type of heteronuclear N-nitropyrazole derivatives". Chemistry of Heterocyclic Compounds 51, № 8 (2015): 695–703. http://dx.doi.org/10.1007/s10593-015-1760-z.

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6

Mastalarz, Henryk, Agnieszka Mastalarz, Joanna Wietrzyk, Magdalena Milczarek, Andrzej Kochel, and Andrzej Regiec. "Synthesis of Platinum(II) Complexes with Some 1-Methylnitropyrazoles and In Vitro Research on Their Cytotoxic Activity." Pharmaceuticals 13, no. 12 (2020): 433. http://dx.doi.org/10.3390/ph13120433.

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A series of eight novel platinum(II) complexes were synthesized by the reaction of the appropriate 1-methylnitropyrazole derivatives with K2PtCl4 and characterized by elemental analysis, ESI MS spectrometry, 1H NMR, 195Pt NMR, IR and far IR spectroscopy. Thermal isomerization of cis-dichloridobis(1-methyl-4-nitropyrazole)platinum(II) 1 to trans-dichloridobis(1-methyl-4-nitropyrazole)platinum(II) 2 has been presented, and the structure of the compound 2 has been confirmed by X-ray diffraction method. Cytotoxicity of the investigated compounds was examined in vitro on three human cancer cell lin

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7

Xu, Minxian, Guangbin Cheng, Hualin Xiong, Bohan Wang, Xuehai Ju, and Hongwei Yang. "Synthesis of high-performance insensitive energetic materials based on nitropyrazole and 1,2,4-triazole." New Journal of Chemistry 43, no. 28 (2019): 11157–63. http://dx.doi.org/10.1039/c9nj01445d.

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A new family of symmetric nitropyrazole and 1,2,4-triazole derivatives and its energetic salts were obtained. The positive effect of ternary hydrogen bonds improve the performances of target compounds.

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8

Jakubczyk, Michał, Satenik Mkrtchyan, Izabela D. Madura, Paulina H. Marek, and Viktor O. Iaroshenko. "Copper-catalyzed direct C–H arylselenation of 4-nitro-pyrazoles and other heterocycles with selenium powder and aryl iodides. Access to unsymmetrical heteroaryl selenides." RSC Advances 9, no. 44 (2019): 25368–76. http://dx.doi.org/10.1039/c9ra05004c.

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In this work, we elaborated a general and straightforward method which permits the rapid assembly of unsymmetrical heteroaryl-aryl selenides containing 4-nitropyrazole, 4-nitroimidazole and a few other heterocyclic scaffolds.

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9

Lei, Caijin, Hongwei Yang, and Guangbin Cheng. "New pyrazole energetic materials and their energetic salts: combining the dinitromethyl group with nitropyrazole." Dalton Transactions 49, no. 5 (2020): 1660–67. http://dx.doi.org/10.1039/c9dt04235k.

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A series of energetic compounds based on nitropyrazole and dinitromethyl group were synthesized. The hydroxylammonium salt 7b exhibited satisfactory calculated detonation performance and the potassium salt 5 could be used as a potential green primary explosive.

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10

Zhang, Shijie, Zhenguo Gao, Di Lan, et al. "Recent Advances in Synthesis and Properties of Nitrated-Pyrazoles Based Energetic Compounds." Molecules 25, no. 15 (2020): 3475. http://dx.doi.org/10.3390/molecules25153475.

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Nitrated-pyrazole-based energetic compounds have attracted wide publicity in the field of energetic materials (EMs) due to their high heat of formation, high density, tailored thermal stability, and detonation performance. Many nitrated-pyrazole-based energetic compounds have been developed to meet the increasing demands of high power, low sensitivity, and eco-friendly environment, and they have good applications in explosives, propellants, and pyrotechnics. Continuous and growing efforts have been committed to promote the rapid development of nitrated-pyrazole-based EMs in the last decade, es

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11

Vatsadze, Irina A., Olga V. Serushkina, Mikhail D. Dutov, et al. "ChemInform Abstract: Synthesis of 1-(N-Nitropyrazolyl)-1H-tetrazoles - A New Type of Heteronuclear N-Nitropyrazole Derivatives." ChemInform 47, no. 13 (2016): no. http://dx.doi.org/10.1002/chin.201613146.

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12

Hvastijová, Mária, Jiří Kohout, and Renate Skirl. "Nucleophilic Addition in Transition Metal, Pseudohalide-4-nitropyrazole Systems." Collection of Czechoslovak Chemical Communications 58, no. 4 (1993): 845–53. http://dx.doi.org/10.1135/cccc19930845.

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The possibility of nucleophilic addition of 4-nitropyrazole (4-NO2-pz) to a pseudohalide group present in the coordination sphere of a central atom was investigated. Ten products were isolated from M(II)-X--4-nitropyrazole systems with M = Cu, Ni or Co and X = NCO, N(CN)2 or C(CN)3, and investigated by infrared and electronic spectroscopy. Four of these compounds were pseudohalide complexes, two were complexes with anionic chelate ligands formed by nucleophilic addition, and the remaining products were mixtures of pseudohalide and chelate complexes. The [Cu(NCO)2(4-NO2-pz)2] complex is rhombic

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13

SHEVELEV, S. A., V. M. VINOGRADOV, I. L. DALINGER, and T. I. CHERKASOVA. "ChemInform Abstract: Nitropyrazoles. Part 8. 3(5)-Amino-4-nitropyrazole (IV). Convenient Synthesis and Study of the Nitration." ChemInform 25, no. 30 (2010): no. http://dx.doi.org/10.1002/chin.199430122.

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14

Lopyrev, V. A., V. N. Elokhina, O. V. Krylova, et al. "Vicarious C-amination of 1-methyl-4-nitropyrazole." Chemistry of Heterocyclic Compounds 35, no. 9 (1999): 1109–10. http://dx.doi.org/10.1007/bf02251807.

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15

Mulcahy, R. Timothy, David J. Wustrow, Richard R. Hark, and Andrew S. Kende. "Radiosensitization by Acetohydroxamic Acid Derivatives of 3-Nitropyrazole." Radiation Research 105, no. 3 (1986): 296. http://dx.doi.org/10.2307/3576686.

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16

Kanishchev, M. I., N. V. Korneeva, and S. A. Shevelev. "Synthesis of 3-amino-5-benzylamino-4-nitropyrazole." Bulletin of the Academy of Sciences of the USSR Division of Chemical Science 35, no. 10 (1986): 2145–47. http://dx.doi.org/10.1007/bf00957547.

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17

Regiec, Andrzej, Piotr Wojciechowski, and Henryk Mastalarz. "Experimental and theoretical spectroscopic and electronic properties enriched with NBO analysis for 1-methyl-3-nitropyrazole and 1-methyl-5-nitropyrazole." Journal of Molecular Structure 1075 (October 2014): 234–45. http://dx.doi.org/10.1016/j.molstruc.2014.06.088.

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18

Makarov, V. A., O. S. Anisimova, and V. G. Granik. "Reaction of 3,5-diamino-4-nitropyrazole with electrophilic reagents." Chemistry of Heterocyclic Compounds 33, no. 3 (1997): 276–81. http://dx.doi.org/10.1007/bf02253106.

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19

Blanco, Susana, Juan C. López, JoséL Alonso, et al. "Microwave spectra and ab initio calculations of 1-nitropyrazole." Journal of Molecular Structure 344, no. 3 (1995): 241–50. http://dx.doi.org/10.1016/0022-2860(94)08434-j.

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20

Kurpet, Marta K., Aleksandra Dąbrowska, Małgorzata M. Jarosz, Katarzyna Kajewska-Kania, Nikodem Kuźnik, and Jerzy W. Suwiński. "Coupling of C-nitro-NH-azoles with arylboronic acids. A route to N-aryl-C-nitroazoles." Beilstein Journal of Organic Chemistry 9 (July 30, 2013): 1517–25. http://dx.doi.org/10.3762/bjoc.9.173.

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A method for the synthesis of N-aryl-C-nitroazoles is presented. A coupling reaction between variously substituted arylboronic acids and 3(5)-nitro-1H-pyrazole catalyzed by copper salt has been carried out in methanol in the presence of sodium hydroxide to afford the desired N-aryl-C-nitroazoles in good yields. This synthetic route has also been successfully applied to obtain N-phenyl derivatives of 4-nitropyrazole, 2-nitroimidazole, 4(5)-nitroimidazole and 3-nitro-1,2,4-triazole.

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21

Palmer, Michael H. "Nuclear Quadrupole Coupling Constant assignments for a series of azoles and azines by Hartree-Fock SCF-Cluster and Lattice Calculations." Zeitschrift für Naturforschung A 51, no. 5-6 (1996): 451–59. http://dx.doi.org/10.1515/zna-1996-5-621.

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Abstract We present ab initio Hartree-Fock lattice calculations on a series of heterocyclic and other compounds. Some of these have previously been studied by cluster calculations with the same DZ basis sets at the SCF level. The electric field gradients at the nitrogen centres, are related to NQR experimental determinations of nuclear quadrupole coupling constants. The compounds studied include imidazole and pyrazole, 4-nitroimidazole, 4-nitropyrazole, pyrazine, and tetramethylpyrazine, pyridinium chloride, and N-methylpyridinium iodide, and pyridine-N-oxide.

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22

Orsini, Paolo, Gabriella Traquandi, Pietro Sansonna, and Paolo Pevarello. "3-Acylaminopyrazole derivatives via a regioselectively N-protected 3-nitropyrazole." Tetrahedron Letters 46, no. 6 (2005): 933–35. http://dx.doi.org/10.1016/j.tetlet.2004.12.054.

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23

Lopyrev, V. A., V. N. Elokhina, O. V. Krylova, et al. "ChemInform Abstract: Vicarious C-Amination of 1-Methyl-4-nitropyrazole." ChemInform 31, no. 38 (2000): no. http://dx.doi.org/10.1002/chin.200038062.

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24

Yunzhang, Liu, Chen Lizhen, Wang Jianlong, Zhang Luyao, and Ruan Jian. "The cocrystal structure of 4-nitropyrazole — acetic acid (1/1), C5H7N3O4." Zeitschrift für Kristallographie - New Crystal Structures 234, no. 6 (2019): 1221–22. http://dx.doi.org/10.1515/ncrs-2019-0356.

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AbstractC5H7N3O4, monoclinic, P1̄ (no. 2), a = 5.1166(12) Å, b = 8.711(2) Å, c = 8.744(2) Å, α = 103.169(7)°, β = 90.454(6)°, γ = 96.121(7)°, V = 377.08(16) Å3, Z = 2, Rgt(F) = 0.0619, wRref(F2) = 0.1241, T = 173(2) K.

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25

Vakul'skaya, Tamara I., Irina A. Titova, Gennadii V. Dolgushin, and Valentin A. Lopyrev. "Free radicals in vicariousC-amination reactions of 1-methyl-4-nitropyrazole." Magnetic Resonance in Chemistry 43, no. 12 (2005): 1023–27. http://dx.doi.org/10.1002/mrc.1708.

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26

MAKAROV, V. A., O. S. ANISIMOVA, and V. G. GRANIK. "ChemInform Abstract: Reaction of 3,5-Diamino-4-nitropyrazole with Electrophilic Reagents." ChemInform 28, no. 34 (2010): no. http://dx.doi.org/10.1002/chin.199734135.

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27

Foces-Foces, Concepcion, Antonio L. Llamas-Saiz, Margarita Men�ndez, Nadine Jagerovic, and J. Elguero. "Structure of 3-nitropyrazole in solution and in the solid state." Journal of Physical Organic Chemistry 10, no. 8 (1997): 637–45. http://dx.doi.org/10.1002/(sici)1099-1395(199708)10:8<637::aid-poc930>3.0.co;2-p.

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28

Jasiński, Radomir. "On the question of the molecular mechanism of N-nitropyrazole rearrangement." Chemistry of Heterocyclic Compounds 56, no. 9 (2020): 1210–12. http://dx.doi.org/10.1007/s10593-020-02799-x.

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29

Kanishchev, M. I., V. Kral, Z. Arnold, V. V. Semenov, S. A. Shevelev, and A. A. Fainzil'berg. "A method for the preparation of N-heterylpyrazoles from 4-nitropyrazole." Bulletin of the Academy of Sciences of the USSR Division of Chemical Science 35, no. 10 (1986): 2191. http://dx.doi.org/10.1007/bf00957565.

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30

Zakharov, V. V., N. V. Chukanov, I. N. Zyuzin, V. V. Nedel’ko, and B. L. Korsunskii. "Thermal Decomposition of N-[2,2-Bis(methoxy-NNO-azoxy)ethyl]-4-Nitropyrazole." Russian Journal of Physical Chemistry B 13, no. 1 (2019): 62–67. http://dx.doi.org/10.1134/s1990793119010305.

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31

Boyd, M., G. J. Atwell, and W. A. Denny. "Structure of 3-methoxycarbonyl-1-methyl-4-nitropyrazole-5-carboxylic acid monohydrate." Acta Crystallographica Section C Crystal Structure Communications 49, no. 8 (1993): 1429–30. http://dx.doi.org/10.1107/s0108270193003488.

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32

Abboud, José-Luis M., Rafael Notario, Manuel Yáñez, et al. "4-Nitropyrazole: a nitrogen or an oxygen base in the gas phase?" Journal of Physical Organic Chemistry 12, no. 10 (1999): 787–95. http://dx.doi.org/10.1002/(sici)1099-1395(199910)12:10<787::aid-poc199>3.0.co;2-e.

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33

Aksamentova, T. N., I. G. Krivoruchka, V. N. Elokhina, A. I. Vokin, V. A. Lopyrev, and V. K. Turchaninov. "Dipole moment and tautomeric form of 3(5)-nitropyrazole in dioxane solution." Russian Chemical Bulletin 48, no. 11 (1999): 2176–77. http://dx.doi.org/10.1007/bf02494873.

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34

Zhu, Shuang-fei, Qiang Gan, and Changgen Feng. "Multimolecular Complexes of CL-20 with Nitropyrazole Derivatives: Geometric, Electronic Structure, and Stability." ACS Omega 4, no. 8 (2019): 13408–17. http://dx.doi.org/10.1021/acsomega.9b01595.

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35

Jaćimović, Željko K., Sladjana B. Novaković, Goran A. Bogdanović, Gerald Giester, Milica Kosović, and Eugen Libowitzky. "First crystal structures of metal complexes with a 4-nitropyrazole-3-carboxylic acid ligand and the third crystal form of the ligand." Acta Crystallographica Section C Structural Chemistry 75, no. 3 (2019): 255–64. http://dx.doi.org/10.1107/s2053229619001244.

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Pyrazole (pz)-derived ligands can, besides exhibiting a strong coordination ability toward different metal ions, exhibit a great diversity in their coordination geometry and nuclearity, which can be achieved by varying the type and position of the pz substituents. The present study reports the synthesis and crystal structure of two binuclear complexes, namely bis(μ-4-nitro-1H-imidazol-1-ide-5-carboxylato)-κ3 N 1,O:N 2;κ3 N 2:N 1,O-bis[aqua(dimethylformamide-κO)copper(II)], [Cu2(C4HN3O4)2(C3H7NO)2(H2O)2], (II), and bis(μ-4-nitro-1H-imidazol-1-ide-5-carboxylato)-κ2 N 1,O:N 2;κ2 N 2:N 1,O-bis[tri

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36

Maresca, Kevin P., David J. Rose, and Jon Zubieta. "Synthesis and characterization of a binuclear rhenium nitropyrazole complex [Re2O3Cl2(PPh3)2(C3H2N3O2)2]." Inorganica Chimica Acta 260, no. 1 (1997): 83–88. http://dx.doi.org/10.1016/s0020-1693(96)05537-5.

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37

Ochando, L. E., J. M. Amigó, J. Rius, D. Louër, Ch Fontenas, and J. Elguero. "The crystal structure of 3,5-diisopropyl-4-nitropyrazole from X-ray powder diffraction data." Journal of Molecular Structure 562, no. 1-3 (2001): 11–17. http://dx.doi.org/10.1016/s0022-2860(00)00766-3.

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38

Hu, Wei, Hongwei Yang, Jieyi Chen, et al. "Nonmetallic Pentazole Salts Based on Furazan or 4-Nitropyrazole for Enhancing Density and Stability." Crystal Growth & Design 21, no. 5 (2021): 2690–98. http://dx.doi.org/10.1021/acs.cgd.0c01574.

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39

Dalinger, I. L., A. A. Zaitsev, T. K. Shkineva, and S. A. Shevelev. "Nitropyrazoles. 11. Isomeric 1-methyl-3(5)-nitropyrazole-4-carbonitriles in nucleophilic substitution reactions. Comparative reactivity of the nitro group in positions 3 and 5 of the pyrazole ring." Russian Chemical Bulletin 53, no. 3 (2004): 580–83. http://dx.doi.org/10.1023/b:rucb.0000035641.63102.14.

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40

Chen, Dongxu, Hualin Xiong, Hongwei Yang, Jie Tang, and Guangbin Cheng. "Nitropyrazole based tricyclic nitrogen-rich cation salts: A new class of promising insensitive energetic materials." FirePhysChem 1, no. 2 (2021): 71–75. http://dx.doi.org/10.1016/j.fpc.2021.03.001.

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41

Guyot, Laetitia, Florian Simon, Jessica Garcia, et al. "Structure-activity relationship study: Mechanism of cyto-genotoxicity of Nitropyrazole-derived high energy density materials family." Toxicology and Applied Pharmacology 381 (October 2019): 114712. http://dx.doi.org/10.1016/j.taap.2019.114712.

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42

Ovejero, Paloma, M. José Mayoral, Mercedes Cano, et al. "The 3,5-dimethyl-4-nitropyrazole ligand in the construction of supramolecular networks of silver(I) complexes." Journal of Organometallic Chemistry 692, no. 19 (2007): 4093–105. http://dx.doi.org/10.1016/j.jorganchem.2007.06.015.

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43

Chernyshev, Vladimir V., Victor A. Tafeenko, Vadim A. Makarov, Eduard J. Sonneveld, and Hendrik Schenk. "3,5-Bis[(N,N-dimethylamino)methyleneamino]-1-methyl-4-nitropyrazole from X-ray powder diffraction data." Acta Crystallographica Section C Crystal Structure Communications 56, no. 9 (2000): 1159–60. http://dx.doi.org/10.1107/s010827010000860x.

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44

Regiec, Andrzej, Henryk Mastalarz, and Piotr Wojciechowski. "Theoretical anharmonic Raman and infrared spectra with vibrational assignments and NBO analysis for 1-methyl-4-nitropyrazole." Journal of Molecular Structure 1061 (March 2014): 166–74. http://dx.doi.org/10.1016/j.molstruc.2014.01.006.

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45

XUAN, BO, YUE-HUA ZHOU, RAJENDER VARMA, and GEORGE C. Y. CHIOU. "Effects of Some N-Nitropyrazole Derivatives on Ocular Blood Flow and Retinal Function Recovery After Ischemic Insult." Journal of Ocular Pharmacology and Therapeutics 15, no. 2 (1999): 135–42. http://dx.doi.org/10.1089/jop.1999.15.135.

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46

Perrin, Monique, Alain Thozet, Pilar Cabildo, Rosa Ma Claramunt, Eduard Valenti, and José Elguero. "Molecular structure and tautomerism of 3,5-bis(4-methylpyrazol-1-yl)-4-methylpyrazole." Canadian Journal of Chemistry 71, no. 9 (1993): 1443–49. http://dx.doi.org/10.1139/v93-186.

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The title compound C12N6H14, 1, crystallizes in the space group P21/n (a = 8.222(2) Å, b = 27.336(8) Å, c = 5.574(2) Å, α = 90.00°, β = 100.97(4)°, γ = 90.00°), Z = 4, d = 1.308 g cm−3. The conformation about the N—C bonds linking the pyrazole rings can be defined as EZ, with "pyridine-like" nitrogen atoms in an anti disposition [Formula: see text] and "pyridine-like" and "pyrrole-like" nitrogen atoms in a syn disposition [Formula: see text] with regard to the central pyrazole. Intermolecular hydrogen bonds between the central and the terminal pyrazole ring of configuration Z form centrosymmet

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47

Li, Yong-xiang, and Yong-liang Gao. "Solubility of 1-methyl-4-nitropyrazole in seventeen pure solvents at temperatures from 283.15 K to 323.15 K." Fluid Phase Equilibria 473 (October 2018): 80–89. http://dx.doi.org/10.1016/j.fluid.2018.05.023.

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48

Zhang, Yiying, Yanan Li, Tao Yu, et al. "Synthesis and Properties of Energetic Hydrazinium 5-Nitro-3-dinitromethyl-2H-pyrazole by Unexpected Isomerization of N-Nitropyrazole." ACS Omega 4, no. 21 (2019): 19011–17. http://dx.doi.org/10.1021/acsomega.9b01910.

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49

Foces-Foces, Concepción, Antonio L. Llamas-Saiz, Rosa M. Claramunt, Concepción López, and José Elguero. "Structure of 3(5)-methyl-4-nitropyrazole in the solid state: tautomerism, crystallography and the problem of desmotropy." J. Chem. Soc., Chem. Commun., no. 9 (1994): 1143–45. http://dx.doi.org/10.1039/c39940001143.

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50

Makarov, V. A., V. A. Tafeenko та V. G. Granik. "Synthesis of pyrazolo[1,5-a]pyrimidines by the reaction of β-dicarbonyl compounds with 3,5-diamino-4-nitropyrazole". Chemistry of Heterocyclic Compounds 34, № 12 (1998): 1423–27. http://dx.doi.org/10.1007/bf02317814.

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