Work

Cu immobilized on MgZnFe2O4 nanoparticles as a green catalyst in the synthesis of mono and bis-polyhydroquinolines

Year: 2024

Type: article

Abstract: In this study, a green and environmentally friendly catalyst (MgZnFe 2 O 4 @ZSC-Cu) was synthesized using a simple and clean method. The catalyst was prepared by combining MgZnFe 2 O 4 MNPs with Ziziphus spina-christi extract (ZSC) and immobilizing Cu ions on the resulting material. The catalyst was thoroughly characterized using various techniques including Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), Field emission-scanning electron microscopy (FE-SEM), Energy dispersive X-ray analyzer (EDS), Inductively coupled plasma-optical emission spectrometry (ICP-OES), Thermogravimetric (TGA), and Vibrating sample magnetometry (VSM) analyses. The catalytic activity of MgZnFe 2 O 4 @ZSC-Cu was evaluated in the Hantzsch reaction involving a four-component reaction with ethyl acetoacetate or dimedone/cyclohexane-1,3-dione, various aromatic aldehydes/di-aldehydes, and ammonium acetate. The structure of the newly formed bis compound and polyhydroquinolines was determined using FT-IR, 1 H and 13 C NMR spectroscopy. This catalyst provides numerous benefits, such as simple separation using a magnet, less reaction times, high product yield, solvent-free conditions, straightforward work-up, and the capability to reuse the catalyst for up to five cycles.

Source: Heliyon

DOI: 10.1016/j.heliyon.2024.e37151

Authors: Zahra Abbas-Ordoo, Akbar Mobinikhaledi, Mohammad Ali Bodaghifard

Institution: Arak University

Language: English

Topic: Multicomponent Synthesis of Heterocycles

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

SDG: Responsible consumption and production

Open Access status: gold

Estimated APC paid: $2,100