微波催化酯化合成丙酸苄酯 |
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引用本文: | 樊兴君,焦天权.微波催化酯化合成丙酸苄酯[J].精细化工,1998,15(3):27-29. |
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作者姓名: | 樊兴君 焦天权 |
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作者单位: | 中国科学院兰州化学物理研究所,兰州大学化学系,兰州化学工业公司合成橡胶厂 |
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摘 要: | 在硅胶担载PTSA催化下,利用微波技术,快速合成了丙酸苄酯,当反应量为2.5/2.5(mmol/mmol)、PTSA担载质量分数为6.0%、催化剂用量为0.5g时,微波加热5.0min,产率可达95.0%。对微波催化酯化反应规律进行了探讨,发现醇酸比为1/1时效果较好。同传统酯化法比较,该法缩短了反应时间,缓解了腐蚀作用,减少了环境污染,降低了反应成本。
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关 键 词: | 微波辐射,固体酸催化,酯化 |
Catalyzed Synthesis of Benzyl Propionate by Microwave Irradiation |
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Abstract: | Using PTSA carried on silica gel as catalyst, benzyl propionate could be rapid synthesized under microwave irradiation . When the ratio of alcohol to carboxylic acid was 2.5mmol/2.5mmol , the percentage of PTSA carried on was 6.0% and 0.5g catalyst was used , the yield of esterification reached 95.0% irradiated 5.0min by domestic microwave oven. |
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Keywords: | microwave irradiation solid acid catalysis esterification |
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