Ionic liquid-based ordered mesoporous organosilica-supported copper as a novel and efficient nanocatalyst for the one-pot synthesis of Biginelli products

被引：61
|
作者：
Elhamifar, Dawood [1 ]
Hosseinpoor, Farzaneh [1 ]
Karimi, Babak [2 ]
Hajati, Shaaker [3 ,4 ]
机构：
[1] Univ Yasuj, Dept Chem, Yasuj 7591874831, Iran
[2] Inst Adv Studies Basic Sci, Dept Chem, Gava Zang 451376731, Zanjan, Iran
[3] Univ Yasuj, Dept Phys, Yasuj 7591874831, Iran
[4] Sharif Univ Technol, Dept Phys, Tehran, Iran
来源：
MICROPOROUS AND MESOPOROUS MATERIALS | 2015年 / 204卷
基金：
美国国家科学基金会;
关键词：
Periodic mesoporous organosilica; Ionic liquids; Copper nanocatalyst; Biginelli reaction; Recoverable and reusable catalyst; HETEROGENEOUS CATALYST; SULFONIC-ACID; IMPROVED PROTOCOL; BRONSTED ACID; SILICA-GEL; 3,4-DIHYDROPYRIMIDIN-2(1H)-ONES; DIHYDROPYRIMIDINONES; CONDENSATION; FRAMEWORK; SOLIDS;
D O I：
10.1016/j.micromeso.2014.11.011
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The preparation, characterization and catalytic application of a novel copper-loaded ionic liquid-based periodic mesoporous organosilica (Cu@PMO-IL) are described. The mesoporous structure of the Cu@PMO-IL material is characterized by transmission electron microscopy (TEM) and nitrogen adsorption desorption analysis. The thermal stability of the material is also determined by thermal gravimetric analysis (TGA). The presence of copper species in the material framework is confirmed by X-ray photoelectron spectroscopy (XPS) and elemental analysis (EA). The catalytic application of Cu@PMO-IL nanocatalyst is then investigated in the Biginelli condensation of different aldehydes with urea and alkylacetoacetates under solvent-free conditions and at moderate temperature. Moreover, the stability, reactivity and reusability of the catalyst are improved under applied reaction conditions. (C) 2014 Elsevier Inc. All rights reserved.
引用
收藏
页码：269 / 275
页数：7
相关论文
共 50 条
12345