4-Amino-5-nitro-7H-pyrazolo[3,4-d][1,2,3]triazine-2-oxide (PTO) is synthesized via one step in this study. Subsequently, 4,7-diamino-5-nitro-pyrazolo[3,4-d][1,2,3]triazine-2-oxide (APTO), 4-oxo-5-nitro-7H-pyrazolo[3,4-d][1,2,3]triazine-2-oxide (OPTO), and several heat-resistant salts are synthesized through local structural modifications on PTO. Comparison of thermal stability between PTO and APTO indicates that while the amino group has a negative impact on the thermal stability of APTO, it enhances the detonation performance of APTO and effectively reduces its mechanical sensitivity. Our findings provide a practical new approach for constructing energetic materials with excellent stability.

中文翻译：

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4-氨基-5-硝基-7H-吡唑并[3,4-d][1,2,3]三嗪-2-氧化物及其耐热衍生物的合成


4-氨基-5-硝基-7H-吡唑并[3,4-d][1,2,3]三嗪-2-氧化物（PTO）是在本研究中通过一个步骤合成的。随后，通过对 PTO 的局部结构修饰合成了 4,7-二氨基-5-硝基吡唑并[3,4-d][1,2,3]三嗪-2-氧化物 （APTO）、4-氧代-5-硝基-7H-吡唑并[3,4-d][1,2,3]三嗪-2-氧化物 （OPTO）和几种耐热盐。PTO 和 APTO 的热稳定性比较表明，虽然氨基对 APTO 的热稳定性有负面影响，但它增强了 APTO 的爆震性能并有效降低了其机械敏感性。我们的研究结果为构建具有出色稳定性的含能材料提供了一种实用的新方法。