An Efficient Chitosan/Silica Composite Core-Shell Microspheres-Supported Pd Catalyst for Aryl Iodides Sonogashira Coupling Reactions

被引：29
|
作者：
Cui, Qing [1 ,2 ]
Zhao, Hong [1 ]
Luo, Guangsheng [1 ]
Xu, Jianhong [1 ]
机构：
[1] Tsinghua Univ, Dept Chem Engn, State Key Lab Chem Engn, Beijing 100084, Peoples R China
[2] Shandong Univ, Sch Chem & Chem Engn, Jinan 250100, Peoples R China
来源：
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2017年 / 56卷 / 01期
基金：
北京市自然科学基金; 中国国家自然科学基金;
关键词：
HETEROGENEOUS CATALYST; METAL IONS; PALLADIUM; NANOPARTICLES; ADSORPTION; HYDROGENATION; RECOVERY; SILICA; GOLD; LEACHATES;
D O I：
10.1021/acs.iecr.6b04077
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Monodispersed chitosan/silica core-shell microspheres-supported Pd catalysts were prepared by a simple and affordable microfluidic device. Merely 5 mg of supported Pd catalyst (1 wt %) showed superior capability in Sonogashira coupling reactions between various aryl iodides and terminal alkynes in a mild environment (ligand-free, copper-free, amine-free, water-ethanol as solvent at 65 degrees C) even after eight cycles of use. These novel porous composite microspheres provide a new carrier to reduce the loading, enhance the activity, and increase the stability of noble metal catalyst.
引用
收藏
页码：143 / 152
页数：10
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