A Comprehensive Experiment on Synthesis of Aggregation-Induced Emitting Salicylaldehyde Azine Using Reimer-Tiemann Reaction

University Chemistry Pub Date : 2020-01-01 DOI:10.3866/pku.dxhx201904010

Kai Li, 郑州 sup 郑州大学化学与分子工程学院, Huijie Lu, Yuanyuan Li, Shuangquan Zang, B. Tang, 郑州 sup 河南工业大学化学化工与环境学院, 中国香港 sup 香港科技大学化学系

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Abstract

: Aggregation-induced emission (AIE) molecules exhibit intense emission in aggregated state but weak or even no fluorescence in dispersed state. The first AIE molecule was reported in 2001. Since then, various of AIE molecules were developed successively, which were widely applied in fields of photoelectric materials, fluorescence chemosensors and bioimaging, etc . Salicylaldehyde azine is a classic AIE molecule with the merits of simple synthesis and intense luminescence. In this comprehensive experiment, the precursor salicylaldehyde is first synthesized using Reimer-Tiemann reaction. Then it reacts with azine to obtain the AIE molecule of salicylaldehyde azine. Through the experiment, students will practice the synthetic method of Reimer-Tiemann reaction and grasp the origination of AIE characteristics of salicylaldehyde azine. Also, students will learn about the applications of AIE molecules through class and network learning.

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Reimer-Tiemann反应合成聚集诱导发光水杨醛嗪的综合实验

聚集诱导发射(AIE)分子在聚集状态下表现出强烈的发射，而在分散状态下表现出微弱甚至没有荧光。第一个AIE分子于2001年被报道。此后，各种AIE分子相继被开发出来，广泛应用于光电材料、荧光化学传感器、生物成像等领域。水杨醛嗪是一种典型的AIE分子，具有合成简单、发光强等优点。在本综合实验中，首次采用Reimer-Tiemann反应合成了前体水杨醛。然后与嘧啶反应得到水杨醛嘧啶的AIE分子。通过实验，学生将实践Reimer-Tiemann反应的合成方法，掌握水杨醛嗪AIE的起源特征。此外，学生将通过课堂和网络学习了解AIE分子的应用。

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University Chemistry

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