Assemblies of Copper Ferrite and Palladium Nanoparticles on Silica Microparticles as a Magnetically Recoverable Catalyst for Sonogashira Reaction under Mild Conditions

被引：35
作者：
Gholinejad, Mohammad [1 ]
Ahmadi, Jahantab [1 ]
机构：
[1] IASBS, Dept Chem, Gava Zang 451376731, Zanjan, Iran
来源：
CHEMPLUSCHEM | 2015年 / 80卷 / 06期
基金：
美国国家科学基金会;
关键词：
copper ferrite; heterogeneous catalysis; magnetic properties; palladium; Sonogashira coupling; LIGAND-FREE CONDITIONS; CROSS-COUPLING REACTIONS; TERMINAL ALKYNES; ARYL HALIDES; 2-AMINOPHENYL DIPHENYLPHOSPHINITE; CUFE2O4; NANOPARTICLES; REUSABLE CATALYST; SUZUKI-MIYAURA; C-C; EFFICIENT;
D O I：
10.1002/cplu.201500015
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Copper ferrite and palladium nanoparticles assembled on silica microparticles are prepared successfully and characterized by scanning electron microscopy, transmission electron microscopy, electron-dispersive X-ray analysis, X-ray diffraction, thermogravimetric analysis, atomic absorption spectroscopy, and infrared studies. The catalyst is applied effectively for the Sonogashira coupling reaction of aryl iodides and bromides under heterogeneous and phosphine-free reaction conditions. The reactions proceed at 50 degrees C with a low loading of palladium catalyst. The magnetically recoverable catalyst is recycled successfully for five consecutive runs with very small drops in catalytic activity.
引用
收藏
页码：973 / 979
页数：7
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