Preparation and characterization of copper chloride supported on citric acid‐modified magnetite nanoparticles (Cu2+‐CA@Fe3O4) and evaluation of its catalytic activity in the reduction of nitroarene compounds

Ghonchepour, Ehsan; Yazdani, Elahe; Saberi, Dariush; Arefi, Marzban; Heydari, Akbar

doi:10.1002/aoc.3822

Cited by 13 publications

(3 citation statements)

References 35 publications

(19 reference statements)

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“…In addition, E. Ghonchepour and co-workers treated Fe3O4 NPs with citric acid in basic medium, and loaded that material with CuCl 2 in the presence of Na 2 CO 3 . 334 The copper NPs had a mean diameter of 25-35 nm.…”

Section: Reductions With Nabh4mentioning

confidence: 99%

“…In addition, E. Ghonchepour and co-workers treated Fe 3 O 4 NPs with citric acid in basic medium and loaded that material with CuCl 2 in the presence of Na 2 CO 3 . 334 The copper NPs had a mean diameter of 25−35 nm. By using NaBH 4 as a hydrogen source, several nitro compounds were reduced to the corresponding anilines within 5 to 120 min.…”

Section: Heterogeneous Copper-based Catalysts 61 Reduction With Molec...mentioning

confidence: 99%

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Reduction of Nitro Compounds Using 3d-Non-Noble Metal Catalysts

et al. 2018

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The reduction of nitro compounds to the corresponding amines is one of the most utilized catalytic processes in the fine and bulk chemical industry. The latest development of catalysts with cheap metals like Fe, Co, Ni and Cu has led to their tremendous achievements over the last years prompting to their greater application as "standard" catalysts. In this review we will comprehensively discuss the use of homogeneous and heterogeneous catalysts based on non-noble 3d-metals for the reduction of nitro compounds using various reductants. The different systems will be revised considering both the catalytic performances and synthetic aspects highlighting also their advantages and disadvantages.

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Section: Reductions With Nabh4mentioning

confidence: 99%

Section: Heterogeneous Copper-based Catalysts 61 Reduction With Molec...mentioning

confidence: 99%

Reduction of Nitro Compounds Using 3d-Non-Noble Metal Catalysts

et al. 2018

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“…1 Magnetite nanoparticles were prepared according to the previously reported literature. [35] To a vigorously stirred solution of 10 mmol FeCl 3 .6H 2 O, 5 mmol of FeCl 2 .4H 2 O, 3 mmol of tricine in 40 ml of deionized water at 80 C, and 10 ml of aqueous ammonia solution (25% w/w) were added in small portions. After 6 hr, the resulting black solid was magnetically filtered and washed several times with water until it reached pH 7.…”

Section: General Remarksmentioning

confidence: 99%

Synthesis of acetamides via oxidative C–C bond cleavage of ketones catalyzed by Cu‐immobilized magnetic nanoparticles

Yazdani

Pazoki

Salamatmanesh

et al. 2020

Applied Organom Chemis

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Copper supported on magnetite nanoparticles modified with environmentally friendly ligand tricine was devised for synthesis of acetamides via C–C oxidative cleavage of ketones with amines. The catalyst was characterized using different techniques, including Fourier transform infrared, X‐ray diffraction, scannin electron microscopy, vibrating sample magnetometry, thermogravimetric analysis, and energy dispersive x‐ray spectroscopy. The protocol showed relatively high yields of acetamide products. Furthermore, the magnetic recovery of the catalyst rendered the overall process fast and efficient. It was used in the reaction for six consecutive cycles with negligible loss of catalytic activity. This research is the first report of application of magnetic nanocatalysts for synthesis of acetamides from ketones of low activity through a C–C bond cleavage strategy.

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Tuneable Copper Catalysed Transfer Hydrogenation of Nitrobenzenes to Aniline or Azo Derivatives

et al. 2020

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A highly versatile and flexible copper nanoparticle (Cu(0) NPs) catalytic system has been developed for the controlled and selective transfer hydrogenation of nitroarene.Interestingly, the final catalytic product is strongly dependent on the nature of the hydrogen donor source. The yield of nitrobenzene reduction to aniline increased from 20% to an almost quantitative yield over a range of alcohols, diols and aminoalcohols. In glycerol at 130 °C aniline was isolated in 93% yield. In ethanolamine, the reaction was conveniently performed at a lower temperature (55 °C) and gave selectively substituted azobenzene (92% yield). Experimental studies provide support for a reaction pathway in which the Cu(0) NPs catalysed transfer hydrogenation of nitrobenzene to aniline proceeds via the condensation route. The high chemoselectivity of both protocols has been proved in experiments on a panel of variously substituted nitroarenes. Enabling technologies, microwaves and ultrasound, used both separately and in combination, have successfully increased the reaction rate and reaction yield.magnified image

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Preparation and characterization of copper chloride supported on citric acid‐modified magnetite nanoparticles (Cu²⁺‐CA@Fe₃O₄) and evaluation of its catalytic activity in the reduction of nitroarene compounds

Cited by 13 publications

References 35 publications

Reduction of Nitro Compounds Using 3d-Non-Noble Metal Catalysts

Reduction of Nitro Compounds Using 3d-Non-Noble Metal Catalysts

Synthesis of acetamides via oxidative C–C bond cleavage of ketones catalyzed by Cu‐immobilized magnetic nanoparticles

Tuneable Copper Catalysed Transfer Hydrogenation of Nitrobenzenes to Aniline or Azo Derivatives

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