ChemInform Abstract: Chitosan‐Supported Fe<sub>3</sub>O<sub>4</sub> Nanoparticles: A Magnetically Recyclable Heterogeneous Nanocatalyst for the Syntheses of Multifunctional Benzimidazoles and Benzodiazepines.

Maleki, Ali; Ghamari, Nakisa; Kamalzare, Maryam

doi:10.1002/chin.201439062

Cited by 3 publications

(2 citation statements)

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“…In this regard, in order to continue our previous research on magnetically recyclable nanocatalysts in MCRs [20][21][22][23][24], we hereby propose CuFe 2 O 4 @starch bionanocatalyst for the three-component reaction of the aromatic aldehyde, malononitrile and enolizable C-H activated acidic in ethanol as a solvent for the synthesis of 4H-pyran derivatives at room temperature (scheme 1).…”

Section: Introductionmentioning

confidence: 99%

Green and efficient three-component synthesis of 4H-pyran catalysed by CuFe ₂ O ₄ @starch as a magnetically recyclable bionanocatalyst

2020

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The development of simple, practical and inexpensive catalysis systems using natural materials is one of the main goals of pharmaceutical chemistry as well as green chemistry. Owing to the ability of easy separation of nanocatalyst, those goals could be approached by applying heterogeneous bionanocatalyst in combination with magnetic nanoparticles. Starch is one of the most abundant natural polymers; therefore, preparing bionanocatalyst from starch is very valuable as starch is largely available and inexpensive. An ecologically benign and efficacious heterogeneous nanocatalyst was prepared based on a biopolymer, and its attributes and morphology were specified by using Fourier transform infrared spectra, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), thermal analysis and vibrating sample magnetometer measurements; followed by studying catalytic behaviour of bionanocomposite in a multicomponent reaction to synthesize of 4H-pyran derivatives. 4H-pyran is extremely valuable in pharmaceutical chemistry, and the development of methods for synthesis of different derivatives of 4H-pyran is momentous. Revealing environmentally benign nature, mild condition, easy work-up, low cost and non-toxicity are some of the advantages of this protocol. Besides, the bionanocomposite was recovered using an external magnetic bar and could be re-used at least six times with no further decrease in its catalytic activity.

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Section: Introductionmentioning

confidence: 99%

Green and efficient three-component synthesis of 4H-pyran catalysed by CuFe ₂ O ₄ @starch as a magnetically recyclable bionanocatalyst

2020

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“…Biodegradability, eco ‐ friendly and relatively low price of cellulose are some major reasons for its usage in the composite nanostructures . Therefore, magnetic nanocomposites based on cellulose can be regarded as a green and efficient recoverable and biodegradable nanocatalyst …”

Section: Introductionmentioning

confidence: 99%

Facile one‐pot synthesis of a series of 7‐aryl‐8H‐benzo[h]indeno[1,2‐b]quinoline‐8‐one derivatives catalyzed by cellulose‐based magnetic nanocomposite

Maleki

Yeganeh

2017

Applied Organom Chemis

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A sulfonated magnetic cellulose-based nanocomposite was applied as an efficient, inexpensive and green catalyst for the one-pot three-component synthesis of 7-aryl-8H-benzo[h]indeno[1,2-b]quinoline-8-ones starting from 1,3-indanedione, aromatic aldehydes and 1-naphthylamine under solvent-free conditions in high yields (79-98%) within short reaction times (2-5 min). The nanobiostructure catalyst can be easily separated from the reaction mixture by using an external magnet and reused several times.

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Recent Developments in the Catalytic Heterocycles Synthesis and Applications of Iron Oxide Nanomaterials

Kadam,

Bhagat,

Kolekar

et al. 2024

sci adv mater

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The synthesis of heterocyclic compounds has made extensive use of magnetic iron oxide (Fe2O3 and Fe3O4) nanoparticles as a heterogeneous catalyst. They are cheap, readily available, environmentally benign, and comparatively nontoxic catalysts. Crucially, these nanoparticles’ surface modification allows reactivity to be tailored enabling catalysts to be designed for specific uses. Important performance for economically viable industrial processes include the easy recovery and reuse of the magnetic nanoparticles from the reaction mixture by magnetic separation. In recent literature on catalytic applications of magnetic iron oxide NPs numerous reactions are reported viz. selective hydrogenation of nitro-heterocyclic compounds, synthesis of functionalized [1,3]-oxazoles, synthesis of benzothiazepine, spirobenzothiazine chroman derivatives and many more. We have collected various reports from the past twelve years and compiled this review on recent trends in catalytic heterocycles synthesis and other applications of iron oxide nanomaterials.

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ChemInform Abstract: Chitosan‐Supported Fe₃O₄ Nanoparticles: A Magnetically Recyclable Heterogeneous Nanocatalyst for the Syntheses of Multifunctional Benzimidazoles and Benzodiazepines.

Cited by 3 publications

References 1 publication

Green and efficient three-component synthesis of 4H-pyran catalysed by CuFe ₂ O ₄ @starch as a magnetically recyclable bionanocatalyst

Green and efficient three-component synthesis of 4H-pyran catalysed by CuFe ₂ O ₄ @starch as a magnetically recyclable bionanocatalyst

Facile one‐pot synthesis of a series of 7‐aryl‐8H‐benzo[h]indeno[1,2‐b]quinoline‐8‐one derivatives catalyzed by cellulose‐based magnetic nanocomposite

Recent Developments in the Catalytic Heterocycles Synthesis and Applications of Iron Oxide Nanomaterials

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ChemInform Abstract: Chitosan‐Supported Fe3O4 Nanoparticles: A Magnetically Recyclable Heterogeneous Nanocatalyst for the Syntheses of Multifunctional Benzimidazoles and Benzodiazepines.

Cited by 3 publications

References 1 publication

Green and efficient three-component synthesis of 4H-pyran catalysed by CuFe 2 O 4 @starch as a magnetically recyclable bionanocatalyst

Green and efficient three-component synthesis of 4H-pyran catalysed by CuFe 2 O 4 @starch as a magnetically recyclable bionanocatalyst

Facile one‐pot synthesis of a series of 7‐aryl‐8H‐benzo[h]indeno[1,2‐b]quinoline‐8‐one derivatives catalyzed by cellulose‐based magnetic nanocomposite

Recent Developments in the Catalytic Heterocycles Synthesis and Applications of Iron Oxide Nanomaterials

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ChemInform Abstract: Chitosan‐Supported Fe₃O₄ Nanoparticles: A Magnetically Recyclable Heterogeneous Nanocatalyst for the Syntheses of Multifunctional Benzimidazoles and Benzodiazepines.

Green and efficient three-component synthesis of 4H-pyran catalysed by CuFe ₂ O ₄ @starch as a magnetically recyclable bionanocatalyst

Green and efficient three-component synthesis of 4H-pyran catalysed by CuFe ₂ O ₄ @starch as a magnetically recyclable bionanocatalyst