Green oxidation of alcohols by using hydrogen peroxide in water in the presence of magnetic Fe<sub>3</sub>O<sub>4</sub>nanoparticles as recoverable catalyst

Sadri, Fariba; Ramazani, Ali; Massoudi, Abdolhossain; Khoobi, Mehdi; Tarasi, Roghayeh; Shafiee, Abbas; Azizkhani, Vahid; Dolatyari, Leila; Joo, Sang Woo

doi:10.1080/17518253.2014.939721

Cited by 78 publications

(17 citation statements)

References 16 publications

(17 reference statements)

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“…Alcohols have been effectively oxidized by traditional non catalytic methods using stoichiometric quantities of hazardous inorganic oxidizing agents, such as chromium(VI) reagents, permanganates, or N-chlorosuccinimide in the presence of mineral acids, which generate large amounts of waste materials [18]. Even grave environmental problems are created using hypervalent iodine reagents [19]. Thus, the development of efficient greener oxidation systems using less poisonous and economic catalysts, oxidants, and solvents under mild conditions became a relevant aim for catalysis.…”

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confidence: 99%

Solvent-Free Microwave-Induced Oxidation of Alcohols Catalyzed by Ferrite Magnetic Nanoparticles

Martins

Amorim

et al. 2017

Catalysts

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Abstract:A series of first-row-transition-metal ferrite magnetic nanoparticles (NPs) MFe 2 O 4 [M = Mn 2+ (1), Fe 2+ (2), Co 2+ (3), Ni 2+ (4), Cu 2+ (5) or Zn 2+ (6)] were prepared by the co-precipitation method and characterized by Fourier transform infrared (FTIR) spectroscopy, powder X-ray diffraction (XRD), scanning electron microscope -energy dispersive X-ray spectrometry (SEM-EDS), vibrating sample magnetometer (VSM) and X-ray photoelectron spectroscopy (XPS). Those NPs were used as catalysts for the microwave-assisted oxidation of various alcohols in solvent-free medium. MnFe 2 O 4 (1), CoFe 2 O 4 (3) and CuFe 2 O 4 (5) act as catalysts for the conversion of alcohols to the corresponding ketones or aldehydes with a yield range of 81 to 94% in 2 h at 120 • C using t-BuOOH as an oxidant. These catalysts can be readily isolated by using an external magnet and no significant loss of activity is observed when reused up to 10 consecutive runs. The effects of some parameters, such as temperature, time, type of oxidant and presence of organic radicals, on the oxidation reactions were also investigated. The presented literature overview highlights the advantages of our new 1-6 NPs catalytic systems in terms of efficiency and economy, mainly due the used microwave (MW) heating mode.

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confidence: 99%

Solvent-Free Microwave-Induced Oxidation of Alcohols Catalyzed by Ferrite Magnetic Nanoparticles

Martins

Amorim

et al. 2017

Catalysts

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“…It is worth noting that new advances in nano science make possible the design of composite magnetic nanocatalysts, which have a high surface area, very tiny particle size and the convenience of separating from the reaction mixture with an external magnet …”

Section: Introductionmentioning

confidence: 99%

Fe₃O₄@BNPs‐CPTMS‐Chitosan‐Pd(0) as an Efficient and Stable Heterogeneous Magnetic Nanocatalyst for the Chemoselective Oxidation of Alcohols and Homoselective Synthesis of 5‐Subestituted 1H‐Tetrazoles

Khodamorady

Bahrami

2019

ChemistrySelect

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In this content, a stable, efficient, active, reusable and inexpensive magnetic boehmite was synthesized by hydrothermal sol-gel method. In the next step magnetic boehmite immobilized further with palladium chitosan complex (Fe 3 O 4 @BNPs-CPTMS-Chitosan-Pd (0)). This novel nanocatalyst was used for the oxidation of alcohols in ethanol and the preparation of 5-substituted tetrazoles in solvent-free conditions. To confirm the structure of catalyst, a variety of techniques, including FT-IR, XRD, FESEM, TEM, EDX, mapping, VSM, TGA-DTA, BET, ICP and UV-Visible were used. The mol % of catalyst was obtained with ICP (2.8 mol%). Also, some benefits of the catalyst are: excellent magnetic properties, easy separating from the reaction mixture with the external magnet, the use of cheap and affordable materials, good surface area (55.94 m 2 /g), low palladium leaching from the catalyst surface, use the green ligand and the use of catalyst for at least 5 consecutive times without reducing the catalytic activity.

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“…Mixed spinel ferrites have achieved huge attention in recent years because of their useful electrical and magnetic properties. This is due to their different applications such as in information storage systems, permanent magnets, sensors, magnetic drug delivery, recording heads, antenna rods, catalysis, loading coils, magnetic liquids, telecommunication devices, magnetic refrigeration, as a microwave absorber . So much interest has been submitted on the synthesis and characterization of nanoparticles of spinel ferrites.…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of Ni‐Cu‐Zn ferrite nanoparticles using tragacanth gum and their use as an efficient catalyst for the synthesis of polyhydroquinoline derivatives

Fardood

Ramazani

Golfar

et al. 2017

Applied Organom Chemis

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Ni 0.35 Cu 0.25 Zn 0.4 Fe 2 O 4 MNPs were synthesized using tragacanth gum as biotemplate and Metals nitrate as the metal source by the sol-gel method. The sample was characterized by powder X-ray diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), vibrating sample magnetometer (VSM), scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX). The nanoparticles exhibit ferromagnetic behaviour at room temperature, with a saturation magnetization of 52.76 emu/g and a coercivity of 80.14 Oe. Thereupon, Ni-Cu-Zn ferrite nanoparticles as an efficient catalyst was used for the synthesis of polyhydroquinoline derivatives via multi-component reactions under microwave irradiation. Simple work-up, mild reaction conditions, short reaction times, use of an economically convenient catalyst, and excellent product yields are the advantageous features of this method. The catalyst could easily be recycled and reused few times without noticeable decrease in catalytic activity.

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Green oxidation of alcohols by using hydrogen peroxide in water in the presence of magnetic Fe₃O₄nanoparticles as recoverable catalyst

Cited by 78 publications

References 16 publications

Solvent-Free Microwave-Induced Oxidation of Alcohols Catalyzed by Ferrite Magnetic Nanoparticles

Solvent-Free Microwave-Induced Oxidation of Alcohols Catalyzed by Ferrite Magnetic Nanoparticles

Fe₃O₄@BNPs‐CPTMS‐Chitosan‐Pd(0) as an Efficient and Stable Heterogeneous Magnetic Nanocatalyst for the Chemoselective Oxidation of Alcohols and Homoselective Synthesis of 5‐Subestituted 1H‐Tetrazoles

Green synthesis of Ni‐Cu‐Zn ferrite nanoparticles using tragacanth gum and their use as an efficient catalyst for the synthesis of polyhydroquinoline derivatives

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Green oxidation of alcohols by using hydrogen peroxide in water in the presence of magnetic Fe3O4nanoparticles as recoverable catalyst

Cited by 78 publications

References 16 publications

Solvent-Free Microwave-Induced Oxidation of Alcohols Catalyzed by Ferrite Magnetic Nanoparticles

Solvent-Free Microwave-Induced Oxidation of Alcohols Catalyzed by Ferrite Magnetic Nanoparticles

Fe3O4@BNPs‐CPTMS‐Chitosan‐Pd(0) as an Efficient and Stable Heterogeneous Magnetic Nanocatalyst for the Chemoselective Oxidation of Alcohols and Homoselective Synthesis of 5‐Subestituted 1H‐Tetrazoles

Green synthesis of Ni‐Cu‐Zn ferrite nanoparticles using tragacanth gum and their use as an efficient catalyst for the synthesis of polyhydroquinoline derivatives

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Product

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Green oxidation of alcohols by using hydrogen peroxide in water in the presence of magnetic Fe₃O₄nanoparticles as recoverable catalyst

Fe₃O₄@BNPs‐CPTMS‐Chitosan‐Pd(0) as an Efficient and Stable Heterogeneous Magnetic Nanocatalyst for the Chemoselective Oxidation of Alcohols and Homoselective Synthesis of 5‐Subestituted 1H‐Tetrazoles