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1,3,5-三硝基-2,3-二氢-1H-咪唑并[4,5-b]吡啶-2-酮的合成及热分解
以2,3-二氨基吡啶为原料,经闭环得到2,3-二氢-1H-咪唑并[4,5-b]吡啶-2-酮(1),并在HNO3/Ac2O体系中硝化,合成出1,3,5-三硝基-2,3-二氢-1H-咪唑并[4,5-b]吡啶-2-酮(2),产率为44.6%。采用核磁共振、质谱、红外对其进行了结构表征。利用差示扫描量热技术和热重分析法研究了化合物2的热性能,分解温度为153.0℃,热重变化范围为130~450℃,共失重55.5%,热稳定性差。
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