A melamine supported on TiO<sub>2</sub> coated Fe<sub>3</sub>O<sub>4</sub>@C nanocomposite as a bifunctional, effective and reusable catalyst for the Knoevenagel condensation reaction

In this study, a novel magnetic melamine-supported on TiO<sub>2</sub> coated Fe<sub>3</sub>O<sub>4</sub>@carbon nanocomposite with a core-shell structure (Fe<sub>3</sub>O<sub>4</sub>@C@TiO<sub>2</sub>/melamine) as a bifunctional catalyst is successfully synthesized <i>via</i> chemical grafting of propylmelamine groups on an Fe<sub>3</sub>O<sub>4</sub>@C@TiO<sub>2</sub> nanocomposite. The physicochemical properties of this catalyst were characterized by VSM, EDX, XRD, FT-IR, TGA and SEM techniques. The catalytic activity of Fe<sub>3</sub>O<sub>4</sub>@C@TiO<sub>2</sub>/melamine was studied in the Knoevenagel condensation of ethyl cyanoacetate with various benzaldehydes (electron-donating and electron-withdrawing groups) at 50 °C under solvent-free conditions. This catalyst was recovered and reused several times without significant decrease in efficiency and stability.

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Publication Details

Journal
Nanoscale Advances
Published
2025-01-01
DOI
https://doi.org/10.1039/d5na00155b
Primary Topic
Multicomponent Synthesis of Heterocycles
Type
article
Field-Weighted Citation Impact
0.00

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article

A melamine supported on TiO2 coated Fe3O4@C nanocomposite as a bifunctional, effective and reusable catalyst for the Knoevenagel condensation reaction

Aliyeh Barzkar, Somayeh Abaeezadeh, Alireza Salimi Beni
Nanoscale Advances
Multicomponent Synthesis of Heterocycles
article

A melamine supported on TiO2 coated Fe3O4@C nanocomposite as a bifunctional, effective and reusable catalyst for the Knoevenagel condensation reaction

Aliyeh Barzkar, Somayeh Abaeezadeh, Alireza Salimi Beni
article en

Abstract

In this study, a novel magnetic melamine-supported on TiO<sub>2</sub> coated Fe<sub>3</sub>O<sub>4</sub>@carbon nanocomposite with a core-shell structure (Fe<sub>3</sub>O<sub>4</sub>@C@TiO<sub>2</sub>/melamine) as a bifunctional catalyst is successfully synthesized <i>via</i> chemical grafting of propylmelamine groups on an Fe<sub>3</sub>O<sub>4</sub>@C@TiO<sub>2</sub> nanocomposite. The physicochemical properties of this catalyst were characterized by VSM, EDX, XRD, FT-IR, TGA and SEM techniques. The catalytic activity of Fe<sub>3</sub>O<sub>4</sub>@C@TiO<sub>2</sub>/melamine was studied in the Knoevenagel condensation of ethyl cyanoacetate with various benzaldehydes (electron-donating and electron-withdrawing groups) at 50 °C under solvent-free conditions. This catalyst was recovered and reused several times without significant decrease in efficiency and stability.

Nanoscale AdvancesVol. 7(13)
Yasouj University (IR)
Yasouj University
Openalex Percentile: Top 91%
Multicomponent Synthesis of Heterocycles
DOIOpen Access PDFOpenAlex
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