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含能材料  2007 

3,5-二硝基吡唑合成研究

Keywords: 有机化学,3,5-二硝基吡唑,重排,合成

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Abstract:

以3-硝基吡唑为原料,经过硝化、重排、氨气中和得到3,5-二硝基吡唑铵盐,然后酸化得到3,5-二硝基吡唑,用元素分析、红外、核磁共振及质谱对3,5-二硝基吡唑及中间体结构进行了表征;通过液相色谱(HPLC)、薄层色谱(TLC)跟踪确定重排最佳反应温度为147℃、时间为77h,转化率为96.5%;重排反应液中,采用通入氨气的新方法,直接得到二硝基吡唑铵盐固体,优化了后处理条件。

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