微波协同大孔树脂催化合成肉桂酸异丙酯的研究

Study on Microwave-assisted Synthesis of Isopropyl Cinnamate Catalyzed by Macroporous Resin

研究了微波协同大孔树脂催化合成肉桂酸异丙酯的新工艺,通过优化合成工艺得到了最佳工艺条件:肉桂酸2g,酸醇物质的量之比1∶10,反应温度105℃,微波功率400W,催化剂为CAT-601树脂,催化剂用量为反应物质量的25%,反应时间12.5min,此条件下肉桂酸异丙酯的产率39.2%,催化剂可再生循环使用,催化性能稳定。

Microwave-assisted synthesis （MAS） was integrated with macroporous resin catalysis （MRC） to prepare isopropyl cinnamate from cinnamic acid, The preparation process was investigated and the optimum synthetic conditions were as follows： cinnamic acid 2 g, molar ratio of cinnamic acid to isopropyl alcohol 1 ： 10, reaction temparture 105 ℃, microwave power 400 W, CAT-601 resin as catalyst, dose of macroporous resin 25 % of the reagents, reaction time 12,5 rain, The yield of isopropyl cinnamate by the new developed process was 39.2 %. The catalytic property of regenerated catalyst was stable.