Synthesis of magnetic nanoparticles Fe3O4@CQD@Si(OEt)(CH2)3@melamine@TC@Ni(NO3) with application in the synthesis of 2-amino-3-cyanopyridine and pyrano[2,3-c]pyrazole derivatives

Solgi, Mehri; Khazaei, Ardeshir; Akbarpour, Tahereh

doi:10.1007/s11164-022-04702-z

Cited by 9 publications

(5 citation statements)

References 27 publications

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“…The results and tests show that the Fe 3 O 4 @PDA/CuCl 2 nanocatalyst for the synthesis of pyranopyrazoles has excellent performance. Copper nanocatalyst with its homogeneous surface shows better performance compared to other heterogeneous catalysts so the reaction time is very low [49] . The synthesis of the catalyst is very easy [50] and its raw materials are easily available and most of them are also non‐toxic [51] .…”

Section: Resultsmentioning

confidence: 99%

“…Copper nanocatalyst with its homogeneous surface shows better performance compared to other heterogeneous catalysts so the reaction time is very low. [49] The synthesis of the catalyst is very easy [50] and its raw materials are easily available and most of them are also nontoxic. [51] In addition to being non-toxic and cheap, this catalyst has the advantage of its stability, which allows it to be reused ChemistrySelect up to 6 times in the reaction, and also increases the efficiency of the reaction tremendously with a smaller amount.…”

Section: Chemistryselectmentioning

confidence: 99%

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Copper‐Decorated Magnetite Polydopamine Composite (Fe₃O₄@PDA): An Effective and Durable Heterogeneous Catalyst for Pyranopyrazole Synthesis

2022

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Synthesis of pyranopyrazoles using heterogeneous catalysts is among the most executed synthetic approaches in organic chemistry and has attracted much attention because of the atom economy and environmentally benign issues. Magnetite dopamine‐supported copper nanoparticles were created using a simple co‐precipitation technique and characterized by Fourier‐transform infrared spectroscopy (FTIR), x‐ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS), and vibrating sample magnetometry (VSM). The catalytic activity of the Fe3O4@PDA/CuCl2 system was probed in the synthesis of structurally diverse pyranopyrazoles. It′s worth mentioning that the catalyst could be used at low loadings to produce pyranopyrazoles with high to acceptable in the absence of an external reducing agent. Additionally, the produced heterogeneous catalyst can be reused (by extracting with an external magnet) in six subsequent cycles without suffering a significant loss in catalytic activity. The high efficiency of the derivatives from about 70 % to 98 %, as well as the fact that the TON)1000–2500( and TOF)1000–5000 h−1) have attained the optimal amount, indicate the catalyst‘s high efficiency.

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Section: Resultsmentioning

confidence: 99%

Section: Chemistryselectmentioning

confidence: 99%

Copper‐Decorated Magnetite Polydopamine Composite (Fe₃O₄@PDA): An Effective and Durable Heterogeneous Catalyst for Pyranopyrazole Synthesis

2022

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“…In the same year, a route for the fabrication of magnetic nanocatalysts that were coated with carbon quantum dots (CQDs) and organic functional groups has been established by Akbarpour et al [94] . (Scheme 28).…”

Section: Synthesis Of Pyrazole Derivatives Through the Magnetic Nanop...mentioning

confidence: 99%

“…Based on the findings, the synthesized compounds 16 shown significant antibacterial 23 demonstrates the reusability of the catalyst. < In the same year, a route for the fabrication of magnetic nanocatalysts that were coated with carbon quantum dots (CQDs) and organic functional groups has been established by Akbarpour et al [94] (Scheme 28). The resulting nanocatalysts were denoted as Fe 3 O 4 @CQD@Si(OEt)(CH 2 ) 3 @melamine@TC@Ni-(NO 3 ).…”

Section: Role Of Organically Dopped Magnetic Nanoparticles On the Syn...mentioning

confidence: 99%

Magnetic Nanoparticles‐Supported Synthesis of Pyrazole Scaffolds: A Review

Sharma,

Suman,

Kaith

et al. 2024

ChemistrySelect

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In the present era, the concept of green in organic synthesis has a unique and irreplaceable place. Specifically, nanoparticle has gained much more attention due to its various properties related to the concept of green chemistry. In this context, magnetic nanoparticle has been widely used in the organic synthesis over last one decade. Among organic compounds, pyrazole and its scaffolds are recognized as a privileged structure as it represents a promising area for identification of lead structures towards the discovery of new synthetic drug molecules and other valuable candidates. Several commercial drugs such as Sildenafil, Rimonabant, Celecoxib and many other compounds in biological testing and preclinical evaluation, illustrate the wide therapeutic spectrum in this class of drug scaffolds. Accordingly, the magnetic nanoparticles have an irreplaceable place in the synthesis of pyrazole derivatives and it is a green and easy methodology to the organic chemists. The present manuscript represents the assimilation of literature pertaining to green aspects of magnetic nanoparticles for the synthesis of highly diversified and valuable derivatives of pyrazole.

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“…In this study, several variables can be tested and optimized at the same time, thus speeding up the optimization process and saving laboratory resources and time. Considering speci c data in this way provides a different perspective for optimization (29,32). This method is used to nd the relationship between response (e ciency) and variables (temperature and amount of catalyst).…”

Section: Experimental Designmentioning

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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Synthesis of magnetic nanoparticles Fe3O4@CQD@Si(OEt)(CH2)3@melamine@TC@Ni(NO3) with application in the synthesis of 2-amino-3-cyanopyridine and pyrano[2,3-c]pyrazole derivatives

Cited by 9 publications

References 27 publications

Copper‐Decorated Magnetite Polydopamine Composite (Fe₃O₄@PDA): An Effective and Durable Heterogeneous Catalyst for Pyranopyrazole Synthesis

Copper‐Decorated Magnetite Polydopamine Composite (Fe₃O₄@PDA): An Effective and Durable Heterogeneous Catalyst for Pyranopyrazole Synthesis

Magnetic Nanoparticles‐Supported Synthesis of Pyrazole Scaffolds: A Review

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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Synthesis of magnetic nanoparticles Fe3O4@CQD@Si(OEt)(CH2)3@melamine@TC@Ni(NO3) with application in the synthesis of 2-amino-3-cyanopyridine and pyrano[2,3-c]pyrazole derivatives

Cited by 9 publications

References 27 publications

Copper‐Decorated Magnetite Polydopamine Composite (Fe3O4@PDA): An Effective and Durable Heterogeneous Catalyst for Pyranopyrazole Synthesis

Copper‐Decorated Magnetite Polydopamine Composite (Fe3O4@PDA): An Effective and Durable Heterogeneous Catalyst for Pyranopyrazole Synthesis

Magnetic Nanoparticles‐Supported Synthesis of Pyrazole Scaffolds: A Review

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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Copper‐Decorated Magnetite Polydopamine Composite (Fe₃O₄@PDA): An Effective and Durable Heterogeneous Catalyst for Pyranopyrazole Synthesis

Copper‐Decorated Magnetite Polydopamine Composite (Fe₃O₄@PDA): An Effective and Durable Heterogeneous Catalyst for Pyranopyrazole Synthesis