新型耐热含能中间体——4,4′-二氯-2,2′,3,3′,5,5′,6,6′-八硝基偶氮苯(DCONAB)合成研究

摘要

The preparation method of DCONAB based on 4-chlorobenzoic acid was proposed, and the preparation technology was improved. The structure of 4-chloro-3,5-dinitrobenzoic acid, 4-chloro-3,5-dinitroaniline and DCONAB were analyzed by FT-IR spectra and elemental analysis. HPLC analysis showed the purity of DCONAB was 97%, and the best reaction temperature is 95℃, reaction time is 3h.%介绍了以4-氯苯甲酸为原料合成4,4′-二氯-2,2′,3,3′,5,5′,6,6′-八硝基偶氮苯(DCONAN)的制备方法,优化了合成工艺.采用红外光谱、元素分析和高效液相色谱等方法对合成产物4-氯-3,5-二硝基苯甲酸、4-氯-3,5-二硝基苯胺及DCONAB进行了结构表征和纯度分析.结果表明,合成DCONAB的最佳条件为反应温度95℃,反应时间3h,高效液相色谱分析表明DCONAB纯度为97%.