| 相转移催化法合成三甲氧基甲苯 |
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| 引用本文： | 崔晓君,陈志荣.相转移催化法合成三甲氧基甲苯[J].应用化工,2004,33(6):65-66. |
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| 作者姓名： | 崔晓君 陈志荣 |
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| 作者单位： | 1. 中国计量学院,安全工程研究所,浙江,杭州,310018
2. 浙江大学,联合化学反应工程研究所,浙江,杭州,310027 |
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| 摘 要： | 采用聚乙二醇为相转移催化剂,对3,4,5 三甲氧基甲苯的合成工艺进行了优化,优化的工艺条件为:反应温度90℃,反应时间为2h,m(2,6 二甲氧基 4 甲基苯酚)∶m(PEG 800)∶m(氢氧化钾)∶m(硫酸二甲酯)=1∶0 20∶0 86∶1 29(质量比)。3,4,5 三甲氧基甲苯的收率为92.9%,纯度达98%以上。
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| 关 键 词： | 聚乙二醇 3 4 5三甲氧基甲苯 相转移催化 |
| 文章编号： | 1671-3206(2004)06-0065-03 |
| 修稿时间： | 2004年7月20日 |
Synthesis of 3,4,5-trimethoxy-toluene with phase transfer catalysis |
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| CUI Xiao-jun,CHEN Zhi-rong.Synthesis of 3,4,5-trimethoxy-toluene with phase transfer catalysis[J].Applied chemical industry,2004,33(6):65-66. |
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| Authors: | CUI Xiao-jun CHEN Zhi-rong |
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| Affiliation: | CUI Xiao-jun~1,CHEN Zhi-rong~2 |
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| Abstract: | The reaction conditions for synthesizing 3,4,5-trimethoxy-toluene were optimized with PEG as phase transfer catalyst. The optimized conditions are as follows: reaction temperature is 90℃, reaction time is 2 h, m(2,6-dimethoxy-p-cresol)∶m(PEG-800)∶m(KOH)∶m( (CH_3)_2SO_4)=1∶0.20∶0.86∶1.29, the yield of 3,4,5-trimethoxy-toluene is 92.9%, the purity of 3,4,5-trimethoxy-toluene is 98% upwards. |
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| Keywords: | PEG 3 4 5-trimethoxy-toluene phase transfer catalysis |
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