Palladium-Schiff Base Complex Immobilized Covalently on Magnetic Nanoparticles as an Efficient and Recyclable Catalyst for Heck and Suzuki Cross-Coupling Reactions

被引：46

作者：

Sobhani, Sara ^{[1
]}

Falatooni, Zahra Mesbah ^{[1
]}

Asadi, Solmaz ^{[1
]}

Honarmand, Moones ^{[2
]}

机构：

[1] Univ Birjand, Dept Chem, Coll Sci, Birjand, Iran

[2] Birjand Univ Technol, Fac Min Chem & Mat Engn, Dept Chem Engn, Birjand, Iran

来源：

CATALYSIS LETTERS | 2016年 / 146卷 / 01期

关键词：

Palladium; Magnetic nanoparticles; Heterogeneous catalyst; Heck and Suzuki reactions; N-PROPYLSULFONATED GAMMA-FE2O3; C BOND FORMATION; HETEROGENEOUS CATALYST; SEPARABLE CATALYST; SILICA; ACID; LIGANDS; SONOGASHIRA; PINCER;

D O I：

10.1007/s10562-015-1636-y

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new palladium-Schiff base complex immobilized covalently on magnetic nanoparticles (Pd-imino-Py-gamma-Fe2O3) was synthesized via the reaction of chloro-functionalized gamma-Fe2O3 with iminopyridine followed by the reaction with palladium acetate. Characterization of Pd-imino-Py-gamma-Fe2O3 was carried out by various techniques such as XRD, SEM, TEM, FT-IR, TGA, ICP, XPS, VSM and elemental analysis. Pd-imino-Py-gamma-Fe2O3 was successfully applied as a magnetically recyclable heterogeneous catalyst in Heck and Suzuki cross-coupling reactions of various aryl halides (iodide, bromides and chlorides as challenging substrates) with olefins and phenylboronic acid, respectively. The synthesized catalyst was separated easily by using an external magnet and recycled eight runs without appreciable loss of its catalytic activity and leaching of the significant quantity of Pd. [GRAPHICS] .

引用

页码：255 / 268

页数：14

共 46 条

[1] Pd-catalyzed Heck reaction for the synthesis of isomeric metallo tetravinylsulfo phthalocyanines and their photosensitizing properties [J].