Unusual oxidation of 4-amino-4H,8H-bisfurazano[3,4-b:3’,4’-e]pyrazines
摘要:
The oxidation of 4,8-diamino-4H,8H-bisfurazano[3,4-b:3',4'-e]pyrazine 1 with positive halogen reagents and related oxidants afforded a stable nitrogen-centered radical, bisfurazano[3,4-b:3',4'-e]pyrazine biradical 4; tetrazene 2 was a probable intermediate.
2,2-Bis(methoxy-<i>NNO</i>-azoxy)ethyl Derivatives of 4,8-Dihydro-bis-furazano[3,4-<i>b</i>:3′4′-<i>e</i>]pyrazine: The Synthesis and X-ray Investigation
作者:Igor N. Zyuzin、Kyrill Yu. Suponitsky、Aleksei B. Sheremetev
DOI:10.1002/jhet.811
日期:2012.5
The first synthesis of 4,8‐dihydro‐bis‐furazano[3,4‐b:3′4′‐e]pyrazine bearing 2,2‐bis(methoxy‐NNO‐azoxy)ethyl groups has been developed. These compounds are obtained by aza‐Michael reaction of 1,1‐bis(methoxy‐NNO‐azoxy)ethene or its equivalents, such as 2,2‐bis(methoxy‐NNO‐azoxy)ethanol derivatives, with 4,8‐dihydro‐bis‐furazano[3,4‐b:3′4′‐e]pyrazine.
已开发出带有2,2-双(甲氧基-NNO-氮杂氧基)乙基的4,8-二氢-双呋喃并[3,4- b:3'4'- e ]吡嗪的第一个合成物。这些化合物是通过1,1-双(甲氧基-NNO - z氧基)乙烯或其等同物的氮杂-迈克尔反应得到的,例如2,2-双(甲氧基-NNO-)氧基)乙醇衍生物与4,8-二氢-bis-furazano [3,4- b:3′4′- e ]吡嗪。
Oxidation of <i>o</i>-dioxime by (diacetoxyiodo)benzene: green and mild access to furoxans
作者:Qi Zhang、Cheng Zhao、Xun Zhang、Chunlin He、Siping Pang
DOI:10.1039/d1nj05510k
日期:——
widely used in the field of high energy density materials because of its excellent properties such as high density, high standard enthalpy of formation and high nitrogen content. However, its existing synthesis methods are still restricted by the problems of difficult substrate preparation and manual handling of hazardous reagents. Herein, we disclosed a mildoxidation strategy to efficiently obtain
energetic organic compounds. Compound 2 has a pillared layeredstructure with a pcu topology. The layeredstructure in the 3D frameworkfeaturing sql topology was constructed from inorganic chains K2O} and nitroamine groups. The crystal density of 2 is up to 2.114 g cm–3. This potassium-based E-MOF shows high thermal stability, high detonation velocity, and high impact and friction sensitivities, which
制备了两种高能化合物4,8-二氨基二呋喃并[3,4- b,e ]吡嗪(1)及其钾基高能金属-有机骨架(E-MOF)(2),并确定了它们的晶体结构通过单晶X射线衍射分析。化合物1与水分子共结晶,并显示出三维(3D)三明治状超分子结构,这在已知的高能有机化合物中很少见。化合物2具有带pcu拓扑的柱状分层结构。3D框架中具有sql拓扑的分层结构是由无机链K 2 O}和硝胺基团构成的。晶体密度2最大为2.114 g cm –3。这种钾基E-MOF具有高的热稳定性,高的爆轰速度以及高的冲击和摩擦敏感性,使其成为潜在的高性能初级炸药。
Synthesis, characterization and properties of heat-resistant explosive materials: polynitroaromatic substituted difurazano[3,4-b:3′,4′-e]pyrazines
作者:Ning Liu、Yuan-jie Shu、Hui Li、Lian-jie Zhai、Ya-nan Li、Bo-zhou Wang
DOI:10.1039/c5ra07105d
日期:——
The thermalbehaviors of these compounds were studied with differential scanning calorimetry (DSC) and thermal gravity-differential thermal gravity analysis (TG-DTG) methods. All the compounds showed good thermal stability with exothermic decomposition peaks in the range of 283 °C to 415 °C, on DSC. The sensitivities and calculated explosive performances were also reported for these energetic materials
三种耐热炸药的合成:4,8-二(2,4,6-三硝基苯基)二呋喃并[3,4- b:3',4'- e ]吡嗪(1),4,8-di (2,4-二硝基苯基)二呋喃并[3,4- b:3',4'- e ]吡嗪(2),4-氨基-8-(2,4,6-三硝基苯基)二呋喃并[3,4- b报道并通过1 H NMR,13 C NMR,IR以及元素分析对3:,4'- e ]吡嗪(3)进行了表征。X射线晶体学分析证实2的结构,并显示出分子间氢键。使用差示扫描量热法(DSC)和热重-差热重分析(TG-DTG)方法研究了这些化合物的热行为。在DSC上,所有化合物均显示出良好的热稳定性,并在283°C至415°C范围内出现放热分解峰。还报告了这些高能材料的敏感性和计算出的爆炸性能。所有结果表明,聚硝基芳族取代的二呋喃并[3,4- b:3',4'- e ]吡嗪有潜力成为有用的耐热爆炸材料。