| 冠醚催化合成香豆素 |
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| 引用本文： | 周成栋,谢国龙.冠醚催化合成香豆素[J].湘潭大学自然科学学报,1993,15(3):87-90. |
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| 作者姓名： | 周成栋 谢国龙 |
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| 作者单位： | 湘潭大学化学系
(周成栋)，湘潭大学化学系(谢国龙) |
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| 摘 要： | 在固-液相转移催化条件下,以二苯并-18-冠-6(DB18C6)为相转移催化剂,甲苯为溶剂,对于以氟化钾催化剂合成香豆素有增催化作用,使产率从64.4%提高到78.8%,反应时间缩短,最佳摩尔比为水杨醛∶乙酐∶氟化钾∶DB18C6=1∶3.1∶0.7∶0.05。
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| 关 键 词： | 香豆素 相转移催化 冠醚 DB18C6 |
SYNTHESIS OF COUMARIN CATALYSED BY CROWN ETHER |
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| Zhou Chengdong Xie Guolong.SYNTHESIS OF COUMARIN CATALYSED BY CROWN ETHER[J].Natural Science Journal of Xiangtan University,1993,15(3):87-90. |
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| Authors: | Zhou Chengdong Xie Guolong |
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| Institution: | Department of Chemistry |
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| Abstract: | Coumarin was synthesized by the solid-liquid phase trans-fer catalysis method.The results show that dibenzo-18-crown-6 possessesconsiderable catalytic effect in Perkin reaction of acetic anhydride withsalicylaldehyde catalyzed by anhydrous potassium fluoride.The yield ofcoumarin was raised to 78.8%. |
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| Keywords: | coumarin phase transfer catalysis dibenzo-18-crown-6 patassium fluoride |
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