| 自制氨基磺酸催化合成2-苯基苯并咪唑 |
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| 引用本文： | 于朝生,林.自制氨基磺酸催化合成2-苯基苯并咪唑[J].化学工业与工程,2008,25(5):419-423. |
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| 作者姓名： | 于朝生 林 |
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| 作者单位： | 东北林业大学,理学院,化学化工系,黑龙江省教委阻燃材料重点实验室,黑龙江,哈尔滨,150040 |
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| 摘 要： | 用自制的氨基磺酸作催化剂,以邻苯二胺和苯甲醛为原料,在无水乙醇溶剂中,反应合成2-苯基苯并咪唑。通过紫外可见光谱仪、傅里叶红外光谱仪和氢核磁共振仪对产物的结构进行表征。考察了催化剂用量、原料配比、反应温度和反应时间等条件对产物收率的影响。在m（氨基磺酸）/n（邻苯二胺）为4.0 g/mol、n（邻苯二胺）/n（苯甲醛）为2.5、反应温度85℃和反应时间3.0 h的适宜条件下,产物收率最高达到71.8%。
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| 关 键 词： | 氨基磺酸 2-苯基苯并咪唑 邻苯二胺 催化 合成 |
Synthesis of 2-Phenylbenzimidazole Catalyzed by the Prepared Aminosulfamic Acid |
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| YU Chao-sheng,LIN Wei,ZHENG Xiao-feng,LI Dejun,ZHENG Chuan-zhi,XIE Jin,LI Bin.Synthesis of 2-Phenylbenzimidazole Catalyzed by the Prepared Aminosulfamic Acid[J].Chemical Industry and Engineering,2008,25(5):419-423. |
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| Authors: | YU Chao-sheng LIN Wei ZHENG Xiao-feng LI Dejun ZHENG Chuan-zhi XIE Jin LI Bin |
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| Affiliation: | (Department of Chemistry and Chemical Engineering, College of Science, Northeast Forestry University, Heilongjiang Key Laboratory of Flame Retarded Polymeric Materials, Education Department of Heilongjiang Province, Harbin 150040, Heilongjiang Province, China) |
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| Abstract: | 2-phenylbenzimidazole was prepared by reaction of o-phenylenediamine and benzaldehyde in anhydrous ethanol, catalyzed by the prepared aminosulfamic acid. The product was characterized by UV- visible spectroscopy, Fourier transform infrared spectroscopy and I HNMR. The effects of catalyst dosage, reactant ratio, reaction temperature, reaction time on the yield of product were investigated. The optimal condition is that the highest yield of 2-phenylbenzimidazole is 71.8% when the reaction is carricd out with ratio of amminosulfamic acid mass to o-phenylenediamine mole of 4.0 g/mol, the ratio of o-phenylenediamine to benzaldehyde of 2.5, at 85 ℃ for 3.0 h. |
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| Keywords: | aminosulfamic acid 2-phenylbenzimidazole o-Phenylenediamine catalysis synthesis |
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