164363-81-9Relevant articles and documents
Synthesis of 1,2,4-oxadiazole-, pyrrole- and 1,2,3-triazole-substituted (1,2,3-triazol-1-yl)furazans
Rozhkov, Vladimir Yu.,Batog, Lyudmila V.,Struchkova, Marina I.
, p. 161 - 163 (2008)
The synthesis of tricyclic compounds with hitherto unknown combinations of heterocycles (1,2,3-triazol-1-yl)-1,2,5-oxadiazoles with 1,2,4-oxadiazol-3-yl, pyrrol-1-yl or 1,2,3-triazol-1-yl substituents at the furazan ring, was developed by interaction of c
New heterocycles with a 3-aminofurazanyl substituent
Shaposhnikov,Korobov,Sergievskii,Pirogov,Mel'nikova,Tselinskii
, p. 1351 - 1355 (2002)
New 3-aminofurazans containing 1,2,4- and 1,3,4-oxadiazole, pyridine, and 1,2,4-triazole substituents in the 4-position were synthesized.
Compounds based on 3-amino-4-(5-methyl-1,2,4-oxadiazol-3-yl)furazan as insensitive energetic materials
Yu, Qiong,Cheng, Guangbin,Ju, Xuehai,Lu, Chunxu,Lin, Qiuhan,Yang, Hongwei
, p. 1202 - 1211 (2017)
3-Amino-4-(5-methyl-1,2,4-oxadiazol-3-yl)furazan was synthesized by reacting 4-amino-N′-hydroxy-1,2,5-oxadiazole-3-carboximidamide with acetamide at a high temperature of 180 °C. N-Trinitroethylamino derivatives and energetic salts based on 3-amino-4-(5-methyl-1,2,4-oxadiazol-3-yl)furazan, which is a combination of 1,2,5- and 1,2,4-oxadizaole rings, were synthesized and fully characterized by multinuclear NMR spectroscopy, IR, and elemental analysis. And, the structures of compounds 1, 3, 4, 7, 9 were further confirmed by single crystal X-ray diffraction. The thermal stabilities of 1-12 were determined by thermogravimetric analysis (TG) and differential scanning calorimetry (DSC), indicating that the reported compounds have moderate thermal stabilities (172-246 °C, except for 3 159 °C). Compounds 1, 4-12 are insensitive towards impact (≥40.1 J) and friction (≥360 N) which were measured by standardized impact and friction tests. Detonation performance was obtained based on the calculated heats of formation and measured densities which indicated that most of these materials are superior to TNT.
Synthesis and characterization of multicyclic oxadiazoles and 1-hydroxytetrazoles as energetic materials
Pagoria, Philip F.,Zhang, Mao-Xi,Zuckerman, Nathaniel B.,DeHope, Alan J.,Parrish, Damon A.
, p. 760 - 778 (2017/09/11)
[Figure not available: see fulltext.] Synthesis and characterization of several multicyclic oxadiazoles, 3,5-bis(4-nitrofurazan-3-yl)-1,2,4-oxadiazole, 3,3'-bis(4-nitrofurazan-3-yl)-5,5'-bi(1,2,4-oxadiazole), 3-(4-nitrofurazan-3-yl)-1,2,4-oxadiazol-5-amine, and salts of 1-hydroxytetrazoles, ammonium 5,5'-(1,2,4-oxadiazole-3,5-diyl)bis(1H-tetrazol-1-olate) and hydroxylammonium 5,5'-{[3,3'-bi(1,2,4-oxadiazole)]-5,5'-diyl}bis(1H-tetrazol-1-olate), as energetic materials are reported. Two of the compounds, 3,5-bis(4-nitrofurazan-3-yl)-1,2,4-oxadiazole and 3,3'-bis(4-nitrofurazan-3-yl)-5,5'-bi(1,2,4-oxadiazole), have attractive single crystal densities of 1.91 and 1.94 g·cm–3 (at 20°C), respectively. The design of these materials has been based on the idea that these multicyclic compounds with a 1,2,4-oxadiazole core will have good thermal stability and high density because of their 3,5-substitution pattern and the possibility of achieving a planar conformation. The various synthetic approaches and interesting chemistry observed during the construction of these new heterocycles has been described.
