负载型离子液体催化芳香烯和甲醛的Prins缩合反应

被引：10

作者：

高腾 ^{[1
,2
]}

宋河远 ^{[1
,2
]}

陈静 ^{[1
]}

机构：

[1] 中国科学院兰州化学物理研究所羰基合成与选择氧化国家重点实验室

[2] 中国科学院大学

来源：

分子催化 | 2016年 / 30卷 / 03期

关键词：

负载型离子液体; Prins反应; 4-苯基-1,3-二氧六环;

D O I：

10.16084/j.cnki.issn1001-3555.2016.03.001

中图分类号：

O621.251 [];

学科分类号：

摘要：

采用溶胶凝胶法制备了一系列硅胶负载型离子液体催化剂(IL/sg),并成功应用于甲醛与苯乙烯及其衍生物的Prins反应中.利用红外光谱(FT-IR)、元素分析(EA)和氮气吸附-脱附等对催化剂结构进行了表征.研究表明,磺酸功能化离子液体1-甲基-3-丁磺酸基咪唑硫酸氢盐固载得到的负载型催化剂(Bs MIm HSO4/sg)表现出最佳的催化活性.在催化剂投料量为烯烃的3%,甲醛与烯烃摩尔比为4∶1,80℃下反应8 h,苯乙烯转化率达到了100%,产物选择性为90%.催化剂经简单的过滤分离后重复使用5次,仍保持良好的催化活性.此外,该催化体系具有较好的底物适用性.

引用

页码：199 / 206

页数：8

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