| 1-甲基-4,5-二硝基咪唑的合成及表征 |
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| 引用本文： | 宋磊,王建龙,李永祥,王小军,曹端林.1-甲基-4,5-二硝基咪唑的合成及表征[J].含能材料,2009,17(5):531-533. |
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| 作者姓名： | 宋磊 王建龙 李永祥 王小军 曹端林 |
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| 作者单位： | 中北大学,化工与环境学院,山西,太原,030051 |
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| 摘 要： | 咪唑为原料，两步硝化得4，5-二硝基咪唑，再在DMF中与硫酸二甲酯反应得目标化合物1．甲基-4，5．二硝基咪唑，采用红外光谱、元素分析、质谱和核磁共振氢谱对其进行了表征。优化了合成工艺，讨论了4，5-二硝基咪唑的硝化机理。实验测得目标产物的总得率为62％，熔点为77℃，最佳反应条件为：温度45～50℃，时间4h，4，5-二硝基咪唑和硫酸二甲酯的摩尔比1：6。在25℃，pH值由4，5-二硝基咪唑（0．63mol·L^-1的丙酮溶液）的3．74升到1．甲基-4，5．二硝基咪唑（0．63mol·L^-1的丙酮溶液）的6．77，酸性显著降低。
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| 关 键 词： | 有机化学 1-甲基4 5-二硝基咪唑 不敏感炸药 合成 |
| 收稿时间： | 3/5/2009 12:00:00 AM |
| 修稿时间： | 5/10/2009 9:08:25 AM |
Synthesis and Characterization of 1-Methyl-4,5-dinitroimidazole |
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| SONG Lei,WANG Jian-long,LI Yong-xiang,WANG Xiao-jun and CAO Duan-lin.Synthesis and Characterization of 1-Methyl-4,5-dinitroimidazole[J].Chinese Journal of Energetic Materials,2009,17(5):531-533. |
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| Authors: | SONG Lei WANG Jian-long LI Yong-xiang WANG Xiao-jun and CAO Duan-lin |
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| Affiliation: | Department of Chemical Engineering, North University of China,Taiyuan 030051,China;Department of Chemical Engineering, North University of China,Taiyuan 030051,China;Department of Chemical Engineering, North University of China,Taiyuan 030051,China;Department of Chemical Engineering, North University of China,Taiyuan 030051,China;Department of Chemical Engineering, North University of China,Taiyuan 030051,China |
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| Abstract: | Taking imidazole as primary substance, 1-methyl-4, 5-dinitroimidazole was synthesized in DMF by reaction of methyl suifate( (CH_3)_2SO_4) with 4,5-dinitroimidazole obtained from nitration. Its structure was characterized by IR,elemental analysis,MS and H NMR. The nitration mechanism of 4,5-dinitroimidazole was analyzed. Results show that the yield of 1-methyl-4,5-dinitroimidazole is 62% ,and its melting point is 77 ℃. The optimum parameters are obtained; reaction temperature is 45-50 ℃ ,and reaction time is 4 h,the molar ratio of 4,5-dinitroimidazole to ( CH_3 )_2SO_4 is 1 : 6. The pH value of 4,5-dinitroimidazole (0. 63 mol · L~(-1) acetone solution) is raised from 3.74 to 6.77 of 1-methyl-4,5-dinitroimidazole (0.63 mol · L~(-1) acetone solution). |
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| Keywords: | organic chemistry 1-methyl-4 5-dinitroimidazole insensitive explosive synthesis |
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