N,N’-二（硝基苯并二氧化呋咱）草酰胺的合成

Synthesis of N,N’-Bis(nitrobenzodifuroxan) Oxalic Amide

摘要:

研究了化合物N,N’-二（硝基苯并二氧化呋咱）草酰胺的合成。3,3’,5,5’-四氯-2,2’,4,4’6,6’-六硝基草酰苯胺（Ⅰ）在DMF中，室温下与叠氮化钠水溶液反应，生成化合物3,3’,5,5’-四叠氮基-2,2’,4,4’6,6’-六硝基草酰苯胺（Ⅱ），收率79.8%。化合物（Ⅱ）在丙酸中，110℃左右进行热解脱氮得到目标化合物N,N’-二（硝基苯并二氧化呋咱）草酰胺（Ⅲ），熔点220 ℃(分解)，收率79.1％，并通过红外光谱、质谱及元素分析确定了目标化合物的结构。由密度瓶法测得化合物的密度为1.86g?cm-3，根据氮当量公式计算的理论爆速为8.529km?s-1，爆压为33.31GPa，根据氧平衡指数值计算的h50值为70.02cm。

Abstract:

In this paper, the synthesis of N,N’-Bis(nitrobenzodifuroxan) oxalic amide is described in detail. 3,3’, 5,5’-Tetrachlo -2,2’, 4,4’,6, 6’- hexanitrooxanilide（Ⅰ） reacted with sodium azide in DMF-water to give 3,3’, 5,5’-Tetraazido -2,2’, 4,4’,6, 6’- hexanitrooxanilide (Ⅱ) at room temperature in 79.8% yield. N, N’-bis (nitrobenzodifuroxan) oxalic amide（Ⅲ） was obtained in 79.1％ yield from (Ⅱ) and in propionic acid through denitrogenation at 110℃. The decomposing point of (Ⅲ) is 220℃. The structures of N, N’-bis (nitrobenzodifuroxan) oxalic amide has been determined by IR, MS and elemental analysis. The target compound has a density of 1.86g?cm-3 found, a detonation velocity of 8.529km?s-1, and a detonation pressure of 33.31GPa. The impact sensitivity (h50) is 70.02cm which is predicted by the oxygen balance index (OB100).