Green synthesis of novel 5-amino-bispyrazole-4-carbonitriles using a recyclable Fe3O4@SiO2@vanillin@thioglycolic acid nano-catalyst

Nikpassand, Mohammad; Fekri, Leila Zare; Varma, Rajender S.; Hassanzadi, Lida; Pashaki, Farhad Sedighi

doi:10.1039/d1ra08001f

Cited by 23 publications

(3 citation statements)

References 31 publications

(29 reference statements)

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“…Building upon our prior research endeavors focused on the synthesis of novel heterocyclic compounds via greener and eco-friendly protocols, [49][50][51][52][53] we started this study by introducing the synthesis of cellulose@SP@catechin@Fe 3 O 4 MNCs as a novel nanocomposite. Initially, cellulose was activated through a sequential treatment with CPTES and catechin.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of novel azo‐linked 4‐arylidene‐benzodiazepine using cellulose@SP@catechin@Fe₃O₄ nanocomposite and study of their antioxidant activity

Shafaati,

Nikpassand,

Mokhtary

et al. 2024

Applied Organom Chemis

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In the present study, cellulose@SP@catechin@Fe3O4 nanocomposite underwent synthesis and characterization employing various analytical techniques, including Fourier transform‐infrared spectroscopy (FT‐IR), field‐emission scanning electron microscopy, transmission electron microscopy, Brunauer–Emmett–Teller analysis, thermogravimetric analysis, vibrating sample magnetometry, X‐ray powder diffraction, and X‐ray spectroscopy. This reusable and efficient nanocomposite facilitated the synthesis of azo‐linked 4‐arylidene‐benzodiazepine, resulting in products with high yields. Characterization of these products was conducted utilizing 1H nuclear magnetic resonance (NMR), 13C NMR, and FT‐IR spectral data alongside mass analyses. Additionally, their antioxidant activities were assessed via 1,1‐diphenyl‐2‐picrylhydrazyl analysis.

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Section: Resultsmentioning

confidence: 99%

Synthesis of novel azo‐linked 4‐arylidene‐benzodiazepine using cellulose@SP@catechin@Fe₃O₄ nanocomposite and study of their antioxidant activity

Shafaati,

Nikpassand,

Mokhtary

et al. 2024

Applied Organom Chemis

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“…The obtained FTIR spectra of the biosynthesized SiO 2 nanoparticles were compared with the previous literature, and there are no additional peaks appearing in the FTIR spectra, which would indicate the presence of any impurities. Plant molecules assist in producing Si 4+ to O 2− ions and stabilizing the ions in the biosynthesis of SiO 2 nanoparticles [54][55][56][57][58].…”

Section: Ftir Analysismentioning

confidence: 99%

UV-Light-Driven Photocatalytic Dye Degradation and Antibacterial Potentials of Biosynthesized SiO2 Nanoparticles

Chelliah,

Gupta,

Mohammad Wabaidur

et al. 2023

Water

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The present work shows the obtainment of biosynthesized SiO2 with the aid of Jasminum grandiflorum plant extract and the study of its photocatalytic ability in dye degradation and antibacterial activity. The obtained biosynthesized SiO2 nanoparticles were characterized using X-ray diffractometer analysis, Fourier transform infrared spectroscopy analysis, ultraviolet–visible diffuse reflectance spectroscopy, field-emission scanning electron microscope with energy-dispersive X-ray analysis, transmission electron microscopy and X-ray photoelectron spectroscopy. The UV-light irradiated photocatalytic activity of the biosynthesized SiO2 nanoparticles was examined using methylene blue dye solution. Its reusability efficiency was determined over 20 cycles and compared with the commercial P-25 titanium dioxide. The bacterial resistivity of the biosynthesized SiO2 nanoparticles was examined using S. aureus and E. coli. The biosynthesized SiO2 nanoparticles showed a high level of crystallinity with no impurities, and they had an optimum crystallite size of 23 nm, a bandgap of 4 eV, no Si-OH groups and quasi-spherical shapes with Si-2p at 104 eV and O-1s at 533 eV. Their photocatalytic activity on methylene blue dye solution could reach 90% degradation after 40 min of UV light exposure, and their reusability efficiency was only 4% less than that of commercial P-25 titanium dioxide. At the concentration of 100 μg/mL, the biosynthesized SiO2 nanoparticles could allow the resistivity of E. coli to become borderline to the resistant range of an antibiotic called Amikacin.

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“…As part of endless attempts in catalyst studiess, the present study synthesized the Fe 3 O 4 @SiO 2 /NH/CC/2APy/CuII as a new nanocatalyst. Next, it is tried to assess its application to the synthesis of pyrazole rings via one-pot,threecomponent reactions in laboratory conditions (25)(26)(27). In this research, we used an e cient method with high e ciency in the presence of 2-aminopyridine-functionalized silica-coated Fe 3 O 4 nanoparticles (Fe 3 O 4 @SiO 2 /NH/CC/2APy/CuII) for the synthesis of pyrazole carbonitrile and aryl methylene-pyrazol derivatives.…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of novel pyrazole carbonitrile and aryl methylene-pyrazole derivatives using 2-aminopyridine-Functionalized Silica-Coated Fe3O4 Nanoparticles as a highly-efficient and magnetically Separable Catalyst (Fe3O4@SiO2/NH/CC/2APy/CuII)

liwal,

Akbarpour,

khazaei

et al. 2023

Preprint

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A novel catalyst namely, Fe3O4@SiO2/Si(OEt)(CH2)3NH/CC/2-aminopyridine/Cu(OAc)2, abbreviated (Fe3O4/SiO2/NH/CC/2APy/CuII) was designed and prepared. In this study, we show that Copper(II) acetate complex-based 2-amino pyridine coated on Fe3O4 magnetic nanoparticles as an effective and Magnetically Separable nanocatalyst by a low-cost and simple procedure. The morphology and structure of Fe3O4/SiO2/NH/CC/2APy/CuII were studied and characterized using several techniques. Nanocatalysts synthesized (Fe3O4/SiO2/NH/CC/2APy/CuII) in very simple ways are separated by an external magnet for five runs, according to the results, no significant reduction in reaction yields was observed. Catalytic studies revealed that the Fe3O4/SiO2/NH/CC/2APy/CuII catalyst is a highly efficient and green nanocatalyst for the synthesis of pyrazole carbonitrile and aryl methylene-pyrazol. The use of synthetic catalyst in this method has many advantages, including high efficiency, simple method, short reaction time, and easy recovery of the catalyst.

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Green synthesis of novel 5-amino-bispyrazole-4-carbonitriles using a recyclable Fe₃O₄@SiO₂@vanillin@thioglycolic acid nano-catalyst

Abstract: Bis(thioglycolic acid)-vanillin silica-coated Fe3O4 MNPs were synthesized, and tested as a catalyst.

Cited by 23 publications

References 31 publications

Synthesis of novel azo‐linked 4‐arylidene‐benzodiazepine using cellulose@SP@catechin@Fe₃O₄ nanocomposite and study of their antioxidant activity

Synthesis of novel azo‐linked 4‐arylidene‐benzodiazepine using cellulose@SP@catechin@Fe₃O₄ nanocomposite and study of their antioxidant activity

UV-Light-Driven Photocatalytic Dye Degradation and Antibacterial Potentials of Biosynthesized SiO2 Nanoparticles

Green synthesis of novel pyrazole carbonitrile and aryl methylene-pyrazole derivatives using 2-aminopyridine-Functionalized Silica-Coated Fe3O4 Nanoparticles as a highly-efficient and magnetically Separable Catalyst (Fe3O4@SiO2/NH/CC/2APy/CuII)

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Green synthesis of novel 5-amino-bispyrazole-4-carbonitriles using a recyclable Fe3O4@SiO2@vanillin@thioglycolic acid nano-catalyst

Abstract: Bis(thioglycolic acid)-vanillin silica-coated Fe3O4 MNPs were synthesized, and tested as a catalyst.

Cited by 23 publications

References 31 publications

Synthesis of novel azo‐linked 4‐arylidene‐benzodiazepine using cellulose@SP@catechin@Fe3O4 nanocomposite and study of their antioxidant activity

Synthesis of novel azo‐linked 4‐arylidene‐benzodiazepine using cellulose@SP@catechin@Fe3O4 nanocomposite and study of their antioxidant activity

UV-Light-Driven Photocatalytic Dye Degradation and Antibacterial Potentials of Biosynthesized SiO2 Nanoparticles

Green synthesis of novel pyrazole carbonitrile and aryl methylene-pyrazole derivatives using 2-aminopyridine-Functionalized Silica-Coated Fe3O4 Nanoparticles as a highly-efficient and magnetically Separable Catalyst (Fe3O4@SiO2/NH/CC/2APy/CuII)

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Green synthesis of novel 5-amino-bispyrazole-4-carbonitriles using a recyclable Fe₃O₄@SiO₂@vanillin@thioglycolic acid nano-catalyst

Synthesis of novel azo‐linked 4‐arylidene‐benzodiazepine using cellulose@SP@catechin@Fe₃O₄ nanocomposite and study of their antioxidant activity

Synthesis of novel azo‐linked 4‐arylidene‐benzodiazepine using cellulose@SP@catechin@Fe₃O₄ nanocomposite and study of their antioxidant activity