Fabrication and characterization of the immobilized Cu(II) and Ni(II) species on silica-coated copper ferrite: as novel magnetically reusable nanocatalysts toward synthesis of biscoumarins

Zeynizadeh, Behzad; Sadeghbari, Maryam; Pesyan, Nader Noroozi

doi:10.1007/s13738-019-01750-y

Cited by 6 publications

(2 citation statements)

References 54 publications

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“…The general procedure for the synthesis of CuFe 2 O 4 /KCC‐1/PMA MNPs is shown in Scheme 2. [ 30,31 ] First, CuFe 2 O 4 nanoparticles were synthesized via coprecipitation method using FeCl 3 ·6H 2 O and CuCl 2 ·2H 2 O. Next, the surface of CuFe 2 O 4 NPs was coated by CTAB and TEOS.…”

Section: Resultsmentioning

confidence: 99%

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Synthesis of pyrido[2,3‐d:5,6‐d′]dipyrimidines using CuFe₂O₄/KCC‐1/PMA as a novel and efficient nanocatalyst under solvent‐free conditions

Sadeghi

Yaghoobi

Ghasemzadeh

2022

Applied Organom Chemis

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In this research, the synthesis of pyrido[2,3‐d:5,6‐d′]dipyrimidines by CuFe2O4/KCC‐1/PMA magnetic nanoparticles was reported. Synthesis of pyrido[2,3‐d:5,6‐d′]dipyrimidines was performed under solvent‐free conditions with good to excellent yields. The prepared nanocatalyst was synthesized in three steps and also was characterized by Fourier transform infrared (FT‐IR) spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy‐dispersive X‐ray spectroscopy (EDX), X‐ray diffraction (XRD), vibrating sample magnetometry (VSM), and N2 adsorption–desorption measurement (Brunauer–Emmett–Teller [BET]) analyses. In addition, the reusability studies of CuFe2O4/KCC‐1/PMA showed that the recovered catalyst could be used for several times.

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Section: Resultsmentioning

confidence: 99%

“…The general procedure for the synthesis of CuFe 2 O 4 / KCC-1/PMA MNPs is shown in Scheme 2. [30,31]…”

Section: Catalyst Characterizationmentioning

confidence: 99%

Synthesis of pyrido[2,3‐d:5,6‐d′]dipyrimidines using CuFe₂O₄/KCC‐1/PMA as a novel and efficient nanocatalyst under solvent‐free conditions

Sadeghi

Yaghoobi

Ghasemzadeh

2022

Applied Organom Chemis

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Humic acid: A Biodegradable Organocatalyst for Solvent‐free Synthesis of Bis(indolyl)methanes, Bis(pyrazolyl)methanes, Bis‐coumarins and Bis‐lawsones

Mitra

Ghosh

2021

ChemistrySelect

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Humic acid, a biodegradable, non‐toxic and easily accessible high molecular weight organocatalyst has been explored for the straightforward and environmentally benign approach towards the preparation of diverse array of functionalized bis(indolyl)methanes, bis(pyrazolyl)methanes, bis‐coumarins and bis‐lawsones by the reaction of a vast range of aldehydes with indole, 3‐methyl‐1‐phenyl pyrazolone, 4‐hydroxycoumarin and 2‐hydroxynaphthalene‐1,4‐dione respectively under solvent‐free condition. These protocols proceed without any hazardous solvents, toxic metal catalysts and harsh reaction conditions. In addition, low catalyst loading, good yield and excellent functional group tolerance are the key advantages of these protocols. The used catalyst and solvent‐free approach make this strategy safe to our mother earth. For the first time reusability of humic acid was investigated and found that it can be recycled up to fifth run without any significant loss of its activity at the end of the reaction. Some bioactive molecules such as arundine, trisindoline and vibribdole A were easily synthesized in our lab by utilizing this designed strategy.

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The immobilized Ni(II) species on thiourea functionalized copper ferrite: a reusable nanocatalyst for synthesis of biscoumarins under solvent-free conditions

2020

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Fabrication and characterization of the immobilized Cu(II) and Ni(II) species on silica-coated copper ferrite: as novel magnetically reusable nanocatalysts toward synthesis of biscoumarins

Cited by 6 publications

References 54 publications

Synthesis of pyrido[2,3‐d:5,6‐d′]dipyrimidines using CuFe₂O₄/KCC‐1/PMA as a novel and efficient nanocatalyst under solvent‐free conditions

Synthesis of pyrido[2,3‐d:5,6‐d′]dipyrimidines using CuFe₂O₄/KCC‐1/PMA as a novel and efficient nanocatalyst under solvent‐free conditions

Humic acid: A Biodegradable Organocatalyst for Solvent‐free Synthesis of Bis(indolyl)methanes, Bis(pyrazolyl)methanes, Bis‐coumarins and Bis‐lawsones

The immobilized Ni(II) species on thiourea functionalized copper ferrite: a reusable nanocatalyst for synthesis of biscoumarins under solvent-free conditions

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Fabrication and characterization of the immobilized Cu(II) and Ni(II) species on silica-coated copper ferrite: as novel magnetically reusable nanocatalysts toward synthesis of biscoumarins

Cited by 6 publications

References 54 publications

Synthesis of pyrido[2,3‐d:5,6‐d′]dipyrimidines using CuFe2O4/KCC‐1/PMA as a novel and efficient nanocatalyst under solvent‐free conditions

Synthesis of pyrido[2,3‐d:5,6‐d′]dipyrimidines using CuFe2O4/KCC‐1/PMA as a novel and efficient nanocatalyst under solvent‐free conditions

Humic acid: A Biodegradable Organocatalyst for Solvent‐free Synthesis of Bis(indolyl)methanes, Bis(pyrazolyl)methanes, Bis‐coumarins and Bis‐lawsones

The immobilized Ni(II) species on thiourea functionalized copper ferrite: a reusable nanocatalyst for synthesis of biscoumarins under solvent-free conditions

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Synthesis of pyrido[2,3‐d:5,6‐d′]dipyrimidines using CuFe₂O₄/KCC‐1/PMA as a novel and efficient nanocatalyst under solvent‐free conditions

Synthesis of pyrido[2,3‐d:5,6‐d′]dipyrimidines using CuFe₂O₄/KCC‐1/PMA as a novel and efficient nanocatalyst under solvent‐free conditions