- Synthesis of Nitro, Dinitro, and Polynitroalkylamino Derivatives of Trifurazanoxide
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The synthesis and characterization of 3-chlorocarbohydroxymoyl-4-nitro-1,2,5-oxadiazole and its transformation to dinitro trifurazanoxide were described for the first time. Synthesis of new amino nitro and trinitroethylamino trifurazanoxide has been presented.
- Duddu, Raja,Hoare, John,Sanchez, Peggy,Damavarapu, Reddy,Parrish, Damon
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- Taming of tetranitroethane: A promising precursor for high performance energetic ingredients
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The stabilization of nitrogen-rich or oxygen-rich energetic molecules is an ongoing challenging study in the field of energetic materials. Now we describe the stabilization of tetranitroethane by various transformations to metal complexes, nitrogen rich salts, and ionic complexes with ammonium oxide. These newly prepared energetic compounds are characterized by IR and NMR spectroscopy, elemental analysis, and differential scanning calorimetry (DSC). Single-crystal X-ray diffraction analysis was used to obtain further structural confirmation of 10, 11, 12, and 14. The safety parameters associated with impact and friction sensitivities were investigated using BAM (Bundesanstalt für Materialforschung und-prüfung) methods. In addition, detonation performances, e.g., detonation velocity, detonation pressure, and specific impulse, were calculated using the Explo5 program (version 6.01), which gives rise to a significant assessment of the application potential of tetranitroethane derivatives as high performance energetic ingredients.
- Yin, Ping,Yu, Qiong,Dharavath, Srinivas,Shreeve, Jean'Ne M.
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p. 15815 - 15820
(2018/08/24)
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- Polynitroethyl- and fluorodinitroethyl substituted boron esters
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The reaction of boron oxide with various nitro-substituted ethanols (2-nitroethanol, 2-fluoro-2,2-dinitroethanol, 2,2,2-trinitroethanol) furnished the corresponding nitroethyl borates B(OCH2CH2NO 2)3 (1), B(OCH2CF(NO2) 2)3 (2), and B(OCH2C(NO2) 3)3 (3). Fluorination of the anion [(NO2) 2CCH2OH]- (4) resulted in 2-fluoro-2,2- dinitroethanol (5), a precursor for 2, and was thoroughly characterized. An interesting condensation was observed with the anion 4 to form the unusual dianion [(NO2)2CCH2C(NO2) 2]2- (6). All compounds were fully characterized by multinuclear NMR spectroscopy, vibrational spectroscopy (IR, Raman), mass spectrometry and elemental analysis. The chemical, physical and energetic properties of 1-3 and 5 are reported, as well as quantum chemical calculations at the CBS-4M level of theory to predict the enthalpies and energies of formation. X-ray diffraction studies were performed, and the crystal structures for compounds 1-6 were determined and discussed thoroughly. The boron esters 1-3 are of interest as possible candidates for smoke-free, green colorants in pyrotechnic applications, and in case of 2 and 3 also as promising high energy oxidizers. Copyright
- Klapoetke, Thomas M.,Krumm, Burkhard,Moll, Richard
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p. 12113 - 12123
(2013/09/23)
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- Henry and Mannich reactions of polynitroalkanes in ionic liquids
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Based on Henry and Mannich reactions of polynitroalkanes for the first time implemented in ionic liquids, ecologically pure and safe methods for the synthesis of polynitro alcohols and N-2,2,2-trinitroethyl derivatives of low basic amino compounds (urea, acetamide, 4-amino-3-methylfuroxan) have been elaborated.
- Epishina, Margarita A.,Ovchinnikov, Igor V.,Kulikov, Alexander S.,Makhova, Nina N.,Tartakovsky, Vladimir A.
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experimental part
p. 21 - 23
(2012/04/10)
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