一锅法微波辅助伪多组分反应合成吡喃香豆素及其分子开关性能。

One-pot synthesis of pyranocoumarins via microwave-assisted pseudo multicomponent reactions and their molecular switching properties.

机构信息

Department of Chemistry, Tunghai University, No. 181, Section 3, Taichung Port Road, Taichung City 40704, Taiwan, Republic of China.

出版信息

Org Lett. 2012 Mar 2;14(5):1190-3. doi: 10.1021/ol203229z. Epub 2012 Feb 14.

DOI:10.1021/ol203229z

PMID:22332883

Abstract

Two new pyranocoumarins were synthesized via one-pot, microwave-assisted pseudo multicomponent condensations of coumarin and 4-methylquinoline to investigate their molecular switching properties. Both are light-sensitive and have a distinct change of color upon UV irradiation. The reaction can be reverted by treating the photogenerated products with imidazoline-functionalized magnetic nanoparticles, which can be swiftly recycled with an external permanent magnet.

摘要

通过香豆素和 4-甲基喹啉一锅、微波辅助拟三元缩合反应合成了两种新型吡喃香豆素，以研究其分子开关性能。两者均对光敏感，在紫外光照射下颜色有明显变化。用光致变色产物与咪唑啉功能化磁性纳米粒子进行处理可以使反应逆转，这些纳米粒子可以在外加永磁体的作用下迅速回收。