Issue 42, 2019

Mesoporous polymeric catalysts with both sulfonic acid and basic amine groups for the one-pot deacetalization−Knoevenagel reaction

Abstract

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 (StSO3Na+) with subsequent nitration, reduction of nitro to amino groups and acidification of sulfonic sodium to obtain P(DVB–NH2–StSO3H). 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.

Graphical abstract: Mesoporous polymeric catalysts with both sulfonic acid and basic amine groups for the one-pot deacetalization−Knoevenagel reaction

Supplementary files

Article information

Article type
Paper
Submitted
04 Aug 2019
Accepted
25 Sep 2019
First published
27 Sep 2019

New J. Chem., 2019,43, 16676-16684

Mesoporous polymeric catalysts with both sulfonic acid and basic amine groups for the one-pot deacetalization−Knoevenagel reaction

Z. Sun, X. Yang, X. Huang, M. Zhang, G. Bian, Y. Qi, X. Yang and W. Zhang, New J. Chem., 2019, 43, 16676 DOI: 10.1039/C9NJ04050A

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