Water-Dispersible, Magnetically Recyclable Heterogeneous Cobalt Catalyst for C-C and C-N Cross-Coupling Reactions in Aqueous Media

被引：1

作者：

Sheikh, Safoora ^{[1
,2
]}

Bhattacharyya, Aditya ^{[2
]}

Henriquez, Marco A. ^{[2
]}

Nasseri, Mohammad Ali ^{[1
]}

Chahkandi, Mohammad ^{[3
]}

Allahresani, Ali ^{[1
]}

Reiser, Oliver ^{[2
]}

机构：

[1] Univ Birjand, Dept Chem, Birjand 97175615, Iran

[2] Univ Regensburg, Inst Organ Chem, D-93053 Regensburg, Germany

[3] Hakim Sabzevari Univ, Dept Chem, Sabzevar 9617976487, Iran

来源：

ACS OMEGA | 2024年 / 9卷 / 29期

关键词：

SUZUKI-MIYAURA; GAMMA-FE2O3; NANOPARTICLES; PALLADIUM; COMPLEX; LIGAND; HYDROGENATION; NANOCATALYST; ALKYNES; ESTERS; MILD;

D O I：

10.1021/acsomega.3c10462

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A cobalt catalyst supported on an iron oxide core, denoted as gamma-Fe2O3@PEG@THMAM-Co, has been prepared and characterized by Fourier transform infrared spectroscopy, X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray mapping, thermogravimetry differential thermogravimetry, vibrating sample magnetometry, and inductively coupled plasma. Polyhydroxy end groups in the shell make the catalyst particles dispersible in water, allowing Hiyama, Suzuki, and C-N cross-coupling reactions of aryl iodides and bromides. The catalyst could be recovered by magnetic decantation and reused for at least five successive runs with a negligent decrease in its activity or changes in its morphology. Water as a solvent without requiring additives, surfactants, or organic co-solvents, as well as an abundant and low-cost cobalt catalyst combined with facile recovery, low leaching, and scalability, provides an environmentally and economically attractive alternative to established palladium-catalyzed C-C and C-N coupling reactions.

引用

页码：31393 / 31400

页数：8

共 46 条

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