摘要
以2-氯-4-氨基吡啶为原料,经硝化得到2-氯-4-氨基-3,5-二硝基吡啶,然后与5-氨基四唑进行缩合反应得到新型含能化合物2-（5-氨基-四唑-1-基）-4-氨基-3,5-二硝基吡啶（1）,收率64%;由2-氨基-6-氯-3,5-二硝基吡啶与5-氨基四唑缩合得到新型含能化合物6-（5-氨基四唑-1-基）-2-氨基-3,5-二硝基吡啶（2）,收率41%。采用核磁共振、红外、质谱、元素分析对化合物1和2进行了结构表征。计算了化合物1和2的爆速、爆压及氧平衡,利用TG和DSC分析法研究了化合物1和2的热行为。结果表明,化合物1和2具有相同的爆速、爆压及氧平衡,其值分别为8.18 km·s-1,30.7 GPa和-62.9%。化合物1的热失重在280~325℃范围内变化,累计失重71%,热分解峰温为304.5℃;化合物2的热失重在285~415℃范围内变化,累计失重65%,初始分解温度为310.67℃。
2-Chloro-3,5-dinitro-pyridin-4-amine was obtained by the nitration of 2-chloropyridin-4-amine as raw material, followed by condensation with 5-aminotetrazole, to give new 2-（5-amino-tetrazol-l-yl）-3,5-dinitro-pyridin-4-ylamine （1） in yield of 64%. The new energetic compound 6-（ 5-amino-tetrazol-1 -yl ） -3,5-dinitro-pyridin-2-ylamine（ 2 ） was synthesized by condensation of 6-chloro-3,5-dinitro-pyridin-2-amine with 5-aminotetrazole in yield of41%. The structures of compounds 1 and 2 were charac- terized by 1H NMR, IR, MS and elemental analysis. Thermal behaviors of compounds 1 and 2 were studied by TG and DSC. The detonation velocity, detonation pressure and oxygen balance for compounds 1 and 2 were calculated. Results show that com- pounds I and 2 have same detonation velocity, detonation pressure and oxygen balance with the values of 8. 18 km . s-1 , 30.7 GPa and -62.9%, respectively. The mass loss of compound 1 in the temperature range of 280-325 ℃ is 71% , while its de- composition temperature is 304.50 ℃. The mass loss of compound 2 in the temperature range of 285 -415 ℃ is 65%, while its in- itial decomposition temperature is 310.67 ℃.
出处
《含能材料》
EI
CAS
CSCD
北大核心
2015年第11期1099-1102,共4页
Chinese Journal of Energetic Materials
关键词
有机合成
含能化合物
热分解
5-氨基四唑
organic synthesis
energetic compounds
thermal behavior
5-aminotetrazole
