微波辐射相转移催化合成α-呋喃丙烯酸

来源期刊：中南大学学报(自然科学版)2003年第3期

论文作者：李晓如 张恒峰 李桂银 赵金尧

文章页码：266 - 268

关键词：微波辐射;相转移催化; PEG1000;糠醛;α-呋喃丙烯酸;碳酸钾;乙酸酐

Key words：microwave irradiation; phase transfer catalyst; PEG1000; furaldehyde;α-furanacrylic acid; potassium carbonate; acetic anhydride

摘    要：在微波辐射和相转移催化剂的条件下,利用Perkin反应,快速合成了α-呋喃丙烯酸;考察了微波辐射功率、微波辐射时间、不同种类的相转移催化剂、催化剂用量及反应物的物料比对反应产物的影响.研究结果表明:在微波辐射功率为260 W、微波反应时间为11 min、以聚乙二醇1 000(PEG1000)为相转移催化剂,糠醛与乙酐的体积比为1∶2,糠醛与无水碳酸钾的量比为1.00∶0.55时,α-呋喃丙烯酸的产率为72.3%.

Abstract: The phase transfer catalytic (PTC) synthesis of furanacrylic acid under microwave irradiation was reported. The experiment results show that the best reaction conditions are as follows. The volume ratio of furaldehyde to acetic anhydride is 1∶2; the mole ratio of furaldehyde with anhydrous potassium carbonate is 1.00∶0.54. The best phase transfer catalyst is PEG1000, the mass ratio of PEG1000 with furaldehyde is 4.3%, the reaction time is 11 min, the reaction power of microwave is 260 W. The yield ofα-furanacrylicacid is up to 72.3% under these reaction conditions.