AbstractStarting from 3,5‐dinitro‐4‐methylaminopyrazole (2), six different energetic salts and three new derivatives of methylene bridged nitropyrazoles were synthesized. The derivatives bear a methylamino (4), methylnitramino (5), and azido group (7). All compounds were intensively characterized using single crystal X‐ray diffraction, multinuclear NMR spectroscopy, IR spectroscopy, mass spectrometry, elemental analysis and DTA/TGA measurements. The sensitivities were determined according to BAM standard methods and the energetic properties calculated using the EXPLO5 code. The energetic salts were compared with each other and with ANTA in terms of their energetic properties. On the basis of the methyl‐ and ethyl bridged derivatives, it was shown how the introduction of methylamino (4) and methylnitramino (5) groups in an alkyl‐bridged nitropyrazole system modify its properties (performance & sensitivities). In addition, azido compound 7 was contrasted with its literature‐known constitutional isomer and investigated for its suitability as a potential metal‐free primary explosive.
摘要从 3,5-二硝基-4-甲
氨基
吡唑(2)开始,合成了六种不同的亚甲基桥联硝基
吡唑的高能盐和三种新衍
生物。这些衍
生物带有甲基
氨基(4)、甲基硝基
氨基(5)和
叠氮基团(7)。利用单晶 X 射线衍射、多核核磁共振光谱、红外光谱、质谱分析、元素分析和 DTA/TGA 测量对所有化合物进行了深入研究。灵敏度是根据 BAM 标准方法确定的,能量特性则是通过 EXPLO5 代码计算得出的。高能盐的高能特性与 A
NTA 进行了比较。在甲基和乙基桥接衍
生物的基础上,证明了在烷基桥接硝基
吡唑体系中引入甲基
氨基(4)和甲基硝基
氨基(5)如何改变其特性(性能与amp;灵敏度)。此外,还将
叠氮化合物 7 与文献中已知的构型异构体进行了对比,并研究了其作为潜在的无
金属初级炸药的适用性。