Bis(p-sulfoanilino)triazine-functionalized silica-coated magnetite nanoparticles as an efficient and magnetically reusable nano-catalyst for Biginelli-type reaction

Moghanian, Hassan; Fard, Mohammad Ali Bodaghi; Mobinikhaledi, Akbar; Ahadi, Najmieh

doi:10.1007/s11164-018-3357-5

Cited by 46 publications

(19 citation statements)

References 78 publications

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“…The structural formation of the MCTP–Fe 3 O 4 was investigated by FTIR. Similar to the FTIR spectrum of MCTP (Figure 2b), MCTP–Fe 3 O 4 (Figure 2a) also shows a series of peaks in the region between 1000 and 1700 cm –1 , indicating the characteristic peaks of the s -triazine-based groups, 20,21 and the slight shift of some peaks results from the combination with Fe 3 O 4 . Furthermore, there is a significant new absorption peak at 586 cm –1 in the MCTP–Fe 3 O 4 , corresponding to the Fe—O bond in Fe 3 O 4 (Figure 2c).…”

Section: Resultssupporting

confidence: 62%

Electroresponsive Polymer–Inorganic Semiconducting Composite (MCTP–Fe₃O₄) Particles and Their Electrorheology

et al. 2018

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Polymer–inorganic semiconducting composite (MCTP–Fe 3 O 4 ) particles were fabricated by loading nanosized Fe 3 O 4 on the microporous covalent triazine-based polymer (MCTP) through a chemical coprecipitation method and then applied to an electrorheological (ER) material. The structural and morphological images of MCTP–Fe 3 O 4 composite were examined by scanning electron microscopy, transmission electron microscopy, and X-ray diffraction. Their magnetic property was also investigated by vibrating sample magnetometry. The chain structure formation of MCTP–Fe 3 O 4 dispersed in silicone oil under an external electric field was confirmed using an optical microscope. The ER fluid based on MCTP–Fe 3 O 4 was processed by dispersing the composite particles in an oil medium, and for comparison, an ER fluid based on pure MCTP was also prepared by the same process. The ER performance of two different ER fluids was scrutinized by a rotational rheometer, which demonstrated that MCTP–Fe 3 O 4 showed better ER characteristics than MCTP-based ER suspension.

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Section: Resultssupporting

confidence: 62%

Electroresponsive Polymer–Inorganic Semiconducting Composite (MCTP–Fe₃O₄) Particles and Their Electrorheology

et al. 2018

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“…19-0629). [33] The amorphous peak at 2θ = 20-25 corresponds to SiO 2 , and it confirms that the functionalization of Fe 3 O 4 has performed well. Using the large peak widths and Scherrer's equation (d ¼ 0:9 λ βCos θ ð Þ ), the nanoparticle size was estimated to be 20 nm.…”

Section: A: Synthesis and Characterization Of Catalystsupporting

confidence: 56%

A novel magnetically recyclable semi‐dendrimer catalyst‐based ethanolpyridole supported on ferrite nanoparticles (HNPs@Py) for the synthesis of biscoumarin and dihydropyrano[3,2‐c]chromene derivatives

Afsharnadery

Khosravi

Zolfigol

2021

Applied Organom Chemis

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The novel organic-inorganic nanohybrid magnetic nanoparticles (HNPs@Py) were prepared by a simple method and characterized by FT-IR, XRD, FE-SEM, TGA, VSM, EDX, and MAP. The catalytic activity of this new (HNPs@Py) was studied for green synthesis of biscoumarin and 3,4-dihydropyrano[c]chromene derivatives. The short reaction time, high yields, simple workup, and easy separation of catalyst from the reaction mixture by an external magnetic field are the main advantages of the present protocol.

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“…Therefore, the results show that 4-aminopyridine is immobilized on surface Fe 3 O 4 @SiO 2 -Pr (Fig. 2d) [58,59]. Finally, Br 3 exhibits a signal between 180 and 200 cm −1 , which is not recognizable in the FT-IR spectrum (Fig.…”

Section: Resultsmentioning

confidence: 89%

Synthesis of multiple quinoline derivatives using novel ionic liquid-based nano-magnetic catalyst (MNPs@SiO2-Pr-AP-tribromide)

et al. 2022

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Recently, magnetic iron oxide nanoparticles functionalized with various organic groups increasing attention in the synthesis of the organic compounds. In this study, ionic liquid nano-magnetic pyridinium-tribromide (MNPs@SiO 2 -Pr-AP-tribromide) as a new nano-catalyst was synthesized. The structure of the catalyst was identified by FT-IR, TGA, XRD, FE-SEM, EDX, EDS, TEM and VSM analysis. The nanocatalyst was efficient for the synthesis of quinoline derivatives through the one-pot reaction of 2-amino-5-chlorobenzophenone and pentane-2,4-dione. The advantages of this catalyst are easy preparation, large surface area, renewability, high thermal stability, high activity, shortening reaction time, improving efficiency, easy purification, and mild reaction conditions.

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Bis(p-sulfoanilino)triazine-functionalized silica-coated magnetite nanoparticles as an efficient and magnetically reusable nano-catalyst for Biginelli-type reaction

Cited by 46 publications

References 78 publications

Electroresponsive Polymer–Inorganic Semiconducting Composite (MCTP–Fe₃O₄) Particles and Their Electrorheology

Electroresponsive Polymer–Inorganic Semiconducting Composite (MCTP–Fe₃O₄) Particles and Their Electrorheology

A novel magnetically recyclable semi‐dendrimer catalyst‐based ethanolpyridole supported on ferrite nanoparticles (HNPs@Py) for the synthesis of biscoumarin and dihydropyrano[3,2‐c]chromene derivatives

Synthesis of multiple quinoline derivatives using novel ionic liquid-based nano-magnetic catalyst (MNPs@SiO2-Pr-AP-tribromide)

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Bis(p-sulfoanilino)triazine-functionalized silica-coated magnetite nanoparticles as an efficient and magnetically reusable nano-catalyst for Biginelli-type reaction

Cited by 46 publications

References 78 publications

Electroresponsive Polymer–Inorganic Semiconducting Composite (MCTP–Fe3O4) Particles and Their Electrorheology

Electroresponsive Polymer–Inorganic Semiconducting Composite (MCTP–Fe3O4) Particles and Their Electrorheology

A novel magnetically recyclable semi‐dendrimer catalyst‐based ethanolpyridole supported on ferrite nanoparticles (HNPs@Py) for the synthesis of biscoumarin and dihydropyrano[3,2‐c]chromene derivatives

Synthesis of multiple quinoline derivatives using novel ionic liquid-based nano-magnetic catalyst (MNPs@SiO2-Pr-AP-tribromide)

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Electroresponsive Polymer–Inorganic Semiconducting Composite (MCTP–Fe₃O₄) Particles and Their Electrorheology

Electroresponsive Polymer–Inorganic Semiconducting Composite (MCTP–Fe₃O₄) Particles and Their Electrorheology