7-氨基-6-硝基-[1,2,5]噁二唑并[3,4-b]吡啶-1-氧化物合成及性能

Synthesis and Performance of 7-Amino-6-nitro-[1,2,5] oxadiazolo [3,4-b]pyridine-1-oxide

设计了一种新化合物(7-氨基-6-硝基-[1,2,5]噁二唑并[3,4-b]吡啶-1-氧化物)的合成方法。以2-氯-4-氨基吡啶为起始原料,经硝化、叠氮化、热解环化得到目标化合物,总收率为42%,并采用核磁共振、红外、质谱、元素分析对其进行结构表征。利用差示扫描量热法研究了目标化合物的热性能,其分解温度为215.93℃,按GJB772A-1997方法实测摩擦感度和撞击感度都为0,表明7-氨基-6-硝基-[1,2,5]噁二唑并[3,4-b]吡啶-1-氧化物是一种钝感含能化合物。

Using 2-choro-4-aminopyridine as primary material, a new compound 7-amino-6-nitro-[ 1,2,5] oxadiazolo[ 3,4-b] pyri- dine 1-oxide was synthesized by nitration, azide substitution and cyclization reaction with a total yield of 42% ,and its structure was confirmed by 1H NMR, 13C NMR, IR, MS and elemental analysis. Friction and impact sensitivities of the title compound obtained by GIB772A-1997 are 0 and the decomposition temperature is 2T5.93 ℃. Results show that 7-amino-6-nitro-[1,2,5] oxadiazolo[ 3,4-b] pyridine 1-oxide is a low sensitivity energetic material.