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含能材料  2015 

双呋咱并[3,4-b: 3′,4′-f]氧化呋咱并[3″,4″-d]氮杂环庚三烯及衍生物的合成和表征

DOI: 10.11943/j.issn.1006-9941.2015.11.010

Keywords: 含能材料 呋咱 氧化呋咱 氮杂环庚三烯 热稳定性

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Abstract:

以3, 4-双(4′-硝基呋咱-3′-基)氧化呋咱(BNFF)为原料, 合成9种不同取代基的双呋咱并[3, 4-b:3′, 4′-f]氧化呋咱并[3″, 4″-d]氮杂环庚三烯(a~i), 探究了成环反应的SN2机理, 并采用核磁、红外、质谱等对其进行了表征。将7-(2-氨基-1-乙基)-双呋咱并[3, 4-b′:4′-f]氧化呋咱并[3″, 4″-d]氮杂环庚三烯(c)与2, 4-二硝基氯苯、2, 4, 6-三硝基-3-氨基氯苯反应合成出两种未见文献报道的化合物, N-(2′, 4′-二硝基苯基)-和N-(3′-氨基-2′, 4′, 6′-三硝基苯基)-7-(2-氨基-1-乙基)-双呋咱并[3, 4-b′:4′-f]氧化呋咱并[3″, 4″-d]氮杂环庚三烯(j和k), 通过差示扫描量热法研究这两种物质的热性能, 结果表明, 化合物j的第1、2阶段热分解放热峰分别为258.03 ℃和329.92 ℃, 化合物k的第1、2阶段放热峰分别为275.35 ℃和360.24 ℃, 表明多硝基苯基的引入可提高含能化合物的热稳定性。理论预测了其爆轰性能:j的理论密度、爆速、爆压分别为1.68 g·cm-3、6945 m·s-1、21 GPa, k为1.74 g·cm-3、6438 m·s-1、18 GPa

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