| 氯铝酸离子液体催化合成香豆素结构荧光染料 |
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| 引用本文： | 高建荣,叶芳芳,赵海莹,盛卫坚. 氯铝酸离子液体催化合成香豆素结构荧光染料[J]. 精细化工, 2007, 24(9): 867-869 |
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| 作者姓名： | 高建荣 叶芳芳 赵海莹 盛卫坚 |
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| 作者单位： | 浙江工业大学,国家绿色化学合成技术重点实验室培育基地,浙江,杭州,310014;中国计量学院,浙江,杭州,310018 |
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| 摘 要： | 以[BMIm]Br-AlCl3离子液体为催化剂,通过4-二乙氨基水杨醛、氰乙酸乙酯和邻氨基苯酚一锅煮反应合成了典型的香豆素结构荧光染料3-(2′-苯并口恶唑基)-7-二乙基氨基-2H-1-苯并吡喃-2-酮。考察了离子液体的催化活性,较系统地研究了催化剂路易斯酸性、催化剂用量、反应温度、反应时间对产率的影响。最佳反应条件为:n(4-二乙氨基水杨醛)∶n(氰乙酸乙酯)∶n(邻氨基苯酚)∶n(离子液体〔n(AlCl3)/n([BMIm]Br-AlCl3)=0.67〕)=1∶1∶1∶1,反应温度100~110℃,反应时间60 min,产物最终实测收率达78.3%。
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| 关 键 词： | 荧光染料 [BMIm]Br-AlCl3离子液体 功能材料 |
| 文章编号： | 1003-5214（2007）09-0867-03 |
| 修稿时间： | 2006-10-18 |
Synthesis of Fluorescent Dye Based on Coumarin in Chloroaluminate Ionic Liquids |
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| GAO Jian-rong,YE Fang-fang,ZHAO Hai-ying,SHENG Wei-jian. Synthesis of Fluorescent Dye Based on Coumarin in Chloroaluminate Ionic Liquids[J]. Fine Chemicals, 2007, 24(9): 867-869 |
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| Authors: | GAO Jian-rong YE Fang-fang ZHAO Hai-ying SHENG Wei-jian |
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| Affiliation: | State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhefiang University of Technology Hangzhou 310014, Zhefiang , China ; China Institute of Metrology , Hangzhou 31 0018, Zhefiang , China |
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| Abstract: | Ionic liquids consisting of 1-butyl-3-methylimidazonium bromide and anhydrous aluminium chloride(Br-AlCl3) were found to work well as Lewis acid catalysts in the synthesis of typical fluorescent dye 3-(2′-benzoxazolyl)-7-diethylamino-2H-chromen-2-one based on coumarin by one-pot reaction of 4-diethylaminosalicylaldehyde and 2-aminophenol with ethyl cyanoacetate.The optimum reaction conditions are:n(4-diethylaminosalicylaldehyde)∶n(2-aminophenol)∶n(ethyl cyanoacetate)∶n(Br-AlCl3(n(AlCl3)/n(Br-AlCl3)=0.67))=1∶1∶1∶1,reaction time 60 min and reaction temperature 100～110 ℃.The yield can reach 78.3%. |
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| Keywords: | fluorescent dye Br-AlCl3 ionic liquid functional materials |
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