Chen Peng, Zhang Lei, Sun Jin-Shi, Xiao En-Kai, Wu Xian-Tao, Zhu Guangshan
School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, 315211, P. R. China.
State Key Laboratory of Inorganic Synthesis, and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
Chempluschem. 2020 May;85(5):943-947. doi: 10.1002/cplu.202000093.
Porous aromatic frameworks (PAFs) that feature a high density of phenyl rings in their robust frameworks are attractive platforms for catalysis because of their extremely high stability, high surface area, and adjustable pore size. In this paper, two PAF-supported ionic liquids were constructed by introducing ionic liquid units onto the framework of a PAF material PAF-111 using a series of stepwise post-synthetic modifications. The basic PAF-supported ionic liquid with a hydroxy anion exhibited high catalytic activity and high stability, and could undergo at least 10 cycles without any activity loss when catalyzing Knoevenagel condensation reaction under aqueous conditions. It is expected that our study will further promote the development of designing and applying functional PAF materials for catalysis in aqueous systems.
多孔芳香框架材料（PAFs）在其坚固的框架中具有高密度的苯环，由于其极高的稳定性、高比表面积和可调节的孔径，是极具吸引力的催化平台。在本文中，通过一系列逐步的后合成修饰，将离子液体单元引入到PAF材料PAF-111的框架上，构建了两种PAF负载的离子液体。具有羟基阴离子的碱性PAF负载离子液体表现出高催化活性和高稳定性，在水相条件下催化Knoevenagel缩合反应时，可至少进行10次循环且无任何活性损失。预计我们的研究将进一步推动在水体系中设计和应用功能性PAF材料用于催化的发展。
