Primary amine-functionalized mesoporous phenolic resin as an effective and stable solid base catalyst for Knoevenagel reactions in water

Kaixuan Wang; Huating Jiang; Min Tong; Yao Xiao; Hexing Li; Fang Zhang

Green Synthesis and Catalysis (Jun 2020)

Primary amine-functionalized mesoporous phenolic resin as an effective and stable solid base catalyst for Knoevenagel reactions in water

Kaixuan Wang,
Huating Jiang,
Min Tong,
Yao Xiao,
Hexing Li,
Fang Zhang

Affiliations

Kaixuan Wang: School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China; The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
Huating Jiang: The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
Min Tong: The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
Yao Xiao: The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
Hexing Li: School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China; The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China; Corresponding author. School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China.
Fang Zhang: The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China; Corresponding author.

Journal volume & issue: Vol. 1, no. 1
pp. 79 – 82

Abstract

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A primary amine functionalized ordered mesoporous phenolic resin (NH2-MPR) was obtained by an evaporation-induced self-assembly method. The as-prepared NH2-MPR material possessed large surface area and ordered two-dimensional hexagonal mesoporous structure. Also, the amine groups were well-dispersed in the mesoporous channels. It can act as an efficient solid base to promote Knoevenagel condensation of various aldehydes with ethyl cyanoacetate in water with high conversion and selectivity. This excellent performance was attributed ordered mesopores and hydrophobic pore surface, which resulted in the decreased the interference of water solvent and the increased active sites accessibility. Noted that it was comparable with homogenous base catalysts in the water-medium Knoevenagel condensation reaction, and it can be reused for at least five times without significant reduction in the catalytic efficiency.

Published in Green Synthesis and Catalysis

ISSN: 2666-5549 (Online)
Publisher: KeAi Communications Co. Ltd.
Country of publisher: China
LCC subjects: Technology: Chemical technology; Science: Chemistry: Organic chemistry: Biochemistry
Website: https://www.keaipublishing.com/en/journals/green-synthesis-and-catalysis/

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