Stiernet Pierre, Aqil Abdelhafid, Zhu Xiaomin, Debuigne Antoine
Center for Education and Research on Macromolecules (CERM), Research Unit "Complex and Entangled Systems: from Atoms to Materials" (CESAM), University of Liege (ULiege), Quartier Agora, 13 Allée du Six Août, Sart-Tilman, B-4000 Liège, Belgium.
RWTH Aachen University, Forckenbeckstraße 50, 52056 Aachen, Germany.
ACS Macro Lett. 2020 Jan 21;9(1):134-139. doi: 10.1021/acsmacrolett.9b00942. Epub 2020 Jan 9.
Interconnected macroporous imidazolium-based monoliths are produced via the modified Radziszewski multicomponent reaction (MCR) applied to triamines under high internal phase emulsion (HIPE) conditions. This straightforward one-pot synthesis combines the efficiency and versatility of MCRs with the ease of implementation of the emulsion templating polymerization process. The characterization of the chemical structure and morphology of the resulting materials confirms the formation of the expected macroporous poly(ionic liquid)s (PILs) networks. The promising catalytic activity and recyclability of these porous PIL monoliths are illustrated for the transesterification reaction and the decarboxylation of caffeic acid. In these cases, almost complete conversion is reached while benefiting from the advantages associated with a heterogeneous catalyst.
通过在高内相乳液（HIPE）条件下将改良的拉齐谢夫斯基多组分反应（MCR）应用于三胺，制备了相互连接的大孔咪唑基整体材料。这种直接的一锅法合成将MCR的效率和多功能性与乳液模板聚合过程的易于实施相结合。对所得材料的化学结构和形态进行表征，证实了预期的大孔聚离子液体（PIL）网络的形成。这些多孔PIL整体材料在酯交换反应和咖啡酸脱羧反应中表现出有前景的催化活性和可回收性。在这些情况下，几乎可以实现完全转化，同时受益于多相催化剂的相关优势。
