Novel synthesis and characterization of Fe3O4@silica-palladium nanocatalyst: A highly active and reusable heterogeneous catalyst for Heck cross-coupling reactions

被引：27
作者：
Banazadeh, Alireza [1 ]
Pirisedigh, Azadeh [2 ]
Aryanasab, Fezzeh [1 ]
Salimi, Hamid [1 ]
Shafiei-Haghighi, Sara [3 ]
机构：
[1] Stand Res Inst SRI, Dept Petrochem Engn, Fac Chem & Petrochem Engn, Karaj 31745139, Iran
[2] Stand Res Inst SRI, Dept Chem & Polymer Engn, Fac Chem & Petrochem Engn, Karaj 31745139, Iran
[3] Shiraz Univ, Coll Sci, Dept Chem, Shiraz 71454, Iran
来源：
INORGANICA CHIMICA ACTA | 2015年 / 429卷
基金：
美国国家科学基金会;
关键词：
Fe3O4 magnetic nanoparticles; Palladium nanocatalyst; Heck cross-coupling reactions; PALLADIUM NANOPARTICLES; MAGNETIC NANOPARTICLES; SUZUKI-MIYAURA; C-C; EFFICIENT; FE3O4; MIZOROKI;
D O I：
10.1016/j.ica.2015.01.044
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A novel method for synthesis of palladium nanocatalyst on Fe3O4 magnetic nanoparticles was introduced. For this purpose, the surface of magnetic nanoparticles was modified with two different precursors of silica which produced amine and vinyl functional groups on the surface of magnetic nanoparticles. The palladium nanocatalysts were formed on silica shell by direct contact of modified magnetic nanoparticles with the palladium precursor without special requirement of any additional chemical reducer. The nanocatalysts were characterized by transmission electron microscopy (TEM), X-ray powder diffraction (XRD), vibrating sample magnetometry (VSM) and thermo-gravimetric analysis (TGA). The catalytic activity of supported palladium nanocatalysts was investigated in Heck coupling reactions of a series of aryl halides and olefins. Under appropriate conditions, all reactions afforded the desired products in relatively excellent yields. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：132 / 137
页数：6
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