Mesoporous Polymeric Catalysts with Both Sulfonic Acid and Basic Amine Groups for One-pot Deacetalization-Knoevenagel Reaction
作者：Zunming Sun, Xinyue Yang, Xianpei Huang, Mengmeng Zhang, Guomin Bian, Yonglin Qi, Xinlin Yang*
關鍵字：POROUS ORGANIC POLYMERS; HETEROGENEOUS CATALYSTS; BIFUNCTIONAL CATALYST; CASCADE REACTIONS; EFFICIENT; FRAMEWORKS; SILICA; SITES; SHELL; CORE
論文來源：期刊
具體來源：New J. Chem., 43 (42), 16676-16684 (2019). DOI: 10.1039/C9NJ04050A
發表時間：2019年
A one-pot cascade reaction catalyzed by multifunctional catalysts is an economical and efficient pathway in modern organic synthesis. Herein, mesoporous polymeric materials with both sulfonic acid and basic amine groups have been synthesized by solvothermal-copolymerization of divinylbenzene (DVB) and 4-styrenesulfonic sodium (StSO(3)(-)Na(+)) with subsequent nitration, reduction of nitro to amino groups and acidification of sulfonic sodium to obtain P(DVB-NH2-StSO(3)H). The mesoporous polymeric bifunctional catalyst showed excellent activity and selectivity for one-pot cascade deacetalization-Knoevenagel condensation with facile recovery due to the isolated locations of the sulfonic acid and amino groups.關鍵字