Eco-friendly functionalization of magnetic halloysite nanotube with SO3H for synthesis of dihydropyrimidinones

被引：160

作者：

Maleki, Ali ^{[1
]}

Hajizadeh, Zoleikha ^{[1
]}

Firouzi-Haji, Razieh ^{[1
]}

机构：

[1] Iran Univ Sci & Technol, Dept Chem, Catalysts & Organ Synth Res Lab, Tehran 1684613114, Iran

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2018年 / 259卷

关键词：

Halloysite; Nanotube; Magnetic nanocatalyst; Green chemistry; Dihydropyrimidinone; DIVERSITY-ORIENTED SYNTHESIS; POT MULTICOMPONENT SYNTHESIS; HETEROGENEOUS NANOCATALYST; FE3O4; NANOPARTICLES; EFFICIENT; CATALYST; 3,4-DIHYDROPYRIMIDIN-2(1H)-ONES; NANOCOMPOSITE; DERIVATIVES; REMOVAL;

D O I：

10.1016/j.micromeso.2017.09.034

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

In this work, the preparation of a new magnetic nanocomposite Fe3O4-halloysite-SO3H with nanotube morphology decorated by the spherical nanoparticles is reported. Furthermore, this porous heterogeneous catalyst was successfully used for the synthesis of dihydropyrimidinones starting from an aldehyde, a beta-etoester and urea or thiourea. The catalyst can be easily separated by an external magnet and recycled for ten times without any appreciable loss of activity. It was characterized by Fourier transform infrared (FT-IR) spectroscopy, energy dispersive X-ray (EDX) analysis, X-ray diffraction (XRD) pattern, X-ray fluorescence (XRF) analysis, vibrating sample magnetometry (VSM) curves, atomic force microscopy (AFM) image and scanning electron microscopy (SEM) image to confirm the formation of the nano composite. Simple workup, high-to-excellent yields and easy purification are some advantages of this protocol. (C) 2017 Elsevier Inc. All rights reserved.

引用

页码：46 / 53

页数：8

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