Immobilized palladium nanoparticles on silica functionalized N-propylpiperazine sodium N-propionate (SBPPSP): catalytic activity evaluation in copper-free Sonogashira reaction

被引：0
作者：
Khodabakhsh Niknam
Abdollah Deris
Farhad Panahi
M. Reza Hormozi Nezhad
机构：
[1] Persian Gulf University,Department of Chemistry, Faculty of Sciences
[2] Sharif University of Technology,Department of Chemistry
[3] Institute for Nanoscience and Nanotechnology (INST),undefined
[4] Sharif University of Technology,undefined
来源：
Journal of the Iranian Chemical Society | 2013年 / 10卷
关键词：
Heterogeneous palladium nanoparticles; Silica-bonded ; -propylpiperazine sodium ; -propionate; Sonogashira reaction; Aryl halides; Alkynes;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
An efficient heterogeneous palladium catalyst system has been developed based on immobilization of Pd nanoparticles on silica-bonded N-propylpiperazine sodium N-propionate (SBPPSP) substrate. SBPPSP substrate can stabilize the Pd nanoparticles effectively so that it can improve their stability against aggregation. In addition, grafted piperazine species on to the silica backbone prevent the removing of Pd nanoparticles from the substrate surface. Transmission electron microscopy (TEM) of catalyst is shown the size of Pd nanoparticles, also it confirmed by particle size analyzer which shown the average size of 21 nm for Pd. The catalytic activity of these catalysts was investigated in the Sonogashira reaction. The catalyst could be recycled several times without appreciable loss in catalytic activity.
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页码：1291 / 1296
页数：5
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