An attractive approach to access 1,2,4-oxadiazole derivatives based on developing a novel carbon nanotube-magnetic catalyst

IF 4 2区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Molecular Structure Pub Date : 2025-03-14 DOI:10.1016/j.molstruc.2025.142050

Zemiao Yin, Zenghao Zhang, Yiting Fu, Yunqian Cui

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引用次数: 0

Abstract

Carbon nanotube-magnetic nanocatalysts have become increasingly important in organic chemistry and are known for their efficiency and reusability. This study introduces the MWCNTs-EDTA/Fe₃O₄Cu (II) catalyst, developed by immobilizing Cu(NO₃)₂ onto a composite of multi-walled carbon nanotubes (MWCNTs), ethylenediaminetetraacetic acid (EDTA), and Fe₃O₄ NPs. The catalyst was primarily evaluated for its role in synthesizing 1,2,4-oxadiazole derivatives through one-pot, three-component reactions involving aryl and heteroaryl aldehydes, benzylamines, and hydroxylamine, using KOAc and a PEG-water mixture as a green solvent. This method yielded high amounts of derivatives under mild conditions. One of the catalyst's key advantages is its strong magnetic properties, enabling easy separation with a magnet. It demonstrated excellent reusability, maintaining high activity even after eight cycles. Characterization techniques, including FT-IR, VSM, XRD, and ICP-OES, confirmed its structural stability and efficiency. Overall, the MWCNTs-EDTA/ Fe₃O₄-Cu (II) catalyst is an ideal candidate for sustainable green chemistry applications.

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来源期刊

Journal of Molecular Structure 化学-物理化学

CiteScore

7.10

自引率

15.80%

发文量

2384

审稿时长

45 days

期刊介绍： The Journal of Molecular Structure is dedicated to the publication of full-length articles and review papers, providing important new structural information on all types of chemical species including: • Stable and unstable molecules in all types of environments (vapour, molecular beam, liquid, solution, liquid crystal, solid state, matrix-isolated, surface-absorbed etc.) • Chemical intermediates • Molecules in excited states • Biological molecules • Polymers. The methods used may include any combination of spectroscopic and non-spectroscopic techniques, for example: • Infrared spectroscopy (mid, far, near) • Raman spectroscopy and non-linear Raman methods (CARS, etc.) • Electronic absorption spectroscopy • Optical rotatory dispersion and circular dichroism • Fluorescence and phosphorescence techniques • Electron spectroscopies (PES, XPS), EXAFS, etc. • Microwave spectroscopy • Electron diffraction • NMR and ESR spectroscopies • Mössbauer spectroscopy • X-ray crystallography • Charge Density Analyses • Computational Studies (supplementing experimental methods) We encourage publications combining theoretical and experimental approaches. The structural insights gained by the studies should be correlated with the properties, activity and/ or reactivity of the molecule under investigation and the relevance of this molecule and its implications should be discussed.