Pd complex of an NNN pincer ligand supported on γ-Fe2O3@SiO2 magnetic nanoparticles: a new catalyst for Heck, Suzuki and Sonogashira coupling reactions

被引：68

作者：

Sobhani, Sara ^{[1
]}

Zeraatkar, Zohre ^{[1
]}

Zarifi, Farzaneh ^{[1
]}

机构：

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

来源：

NEW JOURNAL OF CHEMISTRY | 2015年 / 39卷 / 09期

关键词：

HETEROGENEOUS CATALYST; REDUCTIVE CYCLIZATION; SEPARABLE CATALYST; AEROBIC CONDITIONS; REUSABLE CATALYST; HIGHLY EFFICIENT; PALLADIUM; SILICA; MIYAURA; ACID;

D O I：

10.1039/c5nj00344j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this study, a Pd complex of bis(imino)pyridine as an NNN pincer ligand supported on gamma-Fe2O3@SiO2 magnetic nanoparticles (Pd-BIP-gamma-Fe2O3@SiO2) was synthesized and characterized by SEM, TEM, FT-IR, TGA, ICP, XRD, XPS, VSM and elemental analysis. The synthesized catalyst was used successfully as a new air-and moisture-stable phosphine-free Pd catalyst for Heck, Suzuki and Sonogashira coupling reactions of aryl iodides, bromides and chlorides with alkyl acrylates, styrene, phenylboronic acid and phenylacetylene. The true heterogeneous magnetically-recyclable catalyst can be separated easily using a magnetic bar and reused ten times without any drastic loss of its catalytic activity.

引用

收藏

页码：7076 / 7085

页数：10

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