Fe3O4@Boehmite-NH2-CoIINPs: an inexpensive and highly efficient heterogeneous magnetic nanocatalyst for the Suzuki–Miyaura and Heck–Mizoroki cross-coupling reactions

Mohammadinezhad, Arezou; Akhlaghinia, Batool

doi:10.1039/c7gc02647a

Cited by 97 publications

(50 citation statements)

References 89 publications

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“…Accoring to the optimized reaction conditions, the scope of the Suzuki–Miyaura cross‐coupling reactions was investigated by using of two mol % of GO‐Met‐Ni at 80 °C in toluene for wide variety of aryl halides (iodine, bromine and chlorine) and phenylboronic acid (Table ). In line with the other metal catalyzed Suzuki–Miyaura cross‐coupling reactions, the reaction was performed with higher yields and shorter reaction times, when the aryl halide was aryl iodides and or aryl bromides in comparison of aryl chloride.…”

Section: Resultsmentioning

confidence: 99%

Preparation, Characterization and First Application of Graphene Oxide‐Metformin‐Nickel for the Suzuki Cross‐Coupling Reaction

et al. 2020

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In this project, in the first step, the graphene oxide‐metformin‐nickel catalyst has been prepared and then the Ni(II) was reduced to Ni(0) by hydrazine hydrate and Ni(0) nanoparticle coordinated to metformin‐GO was achieved. After full characterization of catalyst structure by different analyses like fourier‐transform infrared spectroscopy (FT‐IR), transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy dispersive X‐Ray analysis (EDX), X‐Ray diffraction analysis (XRD), thermal gravimetric analysis (TGA), and coupled plasma/atomic emission spectroscopy (ICP), as well as confirm the successful synthesis of catalyst, the activity of catalyst has been examined in the Suzuki–Miyaura cross‐coupling reaction.

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Section: Resultsmentioning

confidence: 99%

Preparation, Characterization and First Application of Graphene Oxide‐Metformin‐Nickel for the Suzuki Cross‐Coupling Reaction

et al. 2020

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“…It is apparent from the previous study [55] that the formation of the active Co I species would advance the cross-coupling reaction. It is apparent from the previous study [55] that the formation of the active Co I species would advance the cross-coupling reaction.…”

Section: Plausible Mechanism For the Mizorokiheck Reaction Catalyzementioning

confidence: 96%

Cobalt supported on dendronized magnetic nanoparticles: A new highly efficient and recyclable catalyst for the Mizoroki–Heck cross‐coupling reaction

Arghan

Koukabi

Kolvari

2019

Applied Organom Chemis

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Funding information Semnan UniversityPolyamidoamine (PAMAM) is one of the most interesting types of hyperbranched polymers that carry a large number of amino groups on its surface. PAMAM has gained significant attention from synthetic organic chemists due to its structural characteristics, controllable structure, inner porosity, and ability to trap a wide range of ions and molecules. So, in this work, the PAMAM dendrimer was synthesized, grafted onto the surface of magnetite nanoparticles, and the resulting hybrid nanoparticles were then employed as suitable host for immobilizing cobalt nanoparticles. The newly developed catalyst was well characterized by Fourier transform-infrared, X-ray diffraction, thermogravimetric analysis, field emission-scanning electron microscopy, transmission electron microscopy, atomic absorption spectroscopy, element mapping and energy-dispersive X-ray analysis. The efficiency of the as-prepared nanocatalyst was evaluated for the Mizoroki-Heck crosscoupling reactions. The MNP@PAMAM-Co represented perfect catalytic efficiency and high selectivity for the Mizoroki-Heck cross-coupling reaction compared with previously reported catalysts. The catalyst separation from the reaction mixture was easily achieved with the assistance of an external magnetic field, and its recycling was also investigated for five consecutive runs. Hot filtration confirmed no leaching of the active metal during the Heck coupling.

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“…Magnetic nanoparticles can be readily separated from the reaction medium using an external magnet and without the need for filtration, centrifugation or other tedious workup processes . In fact, magnetic separable catalysts are among the favoured and fascinating strategies to bridge the split between heterogeneous and homogenous catalysis …”

Section: Introductionmentioning

confidence: 99%

Magnetically Recoverable Catalysts: Catalysis in Synthesis of Polyhydroquinolines

Kazemi

Mohammadi

2019

Applied Organom Chemis

155

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Molecules that contain polyhydroquinoline structural scaffolds are N‐containing heterocycles which are of great interest to organic chemists and biologists. Polyhydroquinoline structural scaffolds which are known as calcium channel blockers have emerged as one of the most important class of drugs used for the treatment of cardiovascular and Alzheimer's diseases. Besides, recovery and reusability of catalysts are important issues to be discussed in modern catalysis research especially in organic synthesis. The concept of magnetically recoverable catalysts has been rapidly developed in recent times. Magnetic separation is an efficient strategy for the rapid separation of catalysts from the reaction medium. Also, an alternative to time‐, solvent‐, and energy‐consuming separation techniques. In this review, we focused on the fabrication, surface‐modification and characterization of nanomagnetic materials and their application, as magnetically recoverable catalysts, in the synthesis of polyhydroquinoline structural scaffolds.

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Fe₃O₄@Boehmite-NH₂-Co^IINPs: an inexpensive and highly efficient heterogeneous magnetic nanocatalyst for the Suzuki–Miyaura and Heck–Mizoroki cross-coupling reactions

Abstract: CoII immobilized on aminated Fe3O4@Boehmite nanoparticles as a heterogeneous magnetic catalyst for cross-coupling reactions was investigated.

Cited by 97 publications

References 89 publications

Preparation, Characterization and First Application of Graphene Oxide‐Metformin‐Nickel for the Suzuki Cross‐Coupling Reaction

Preparation, Characterization and First Application of Graphene Oxide‐Metformin‐Nickel for the Suzuki Cross‐Coupling Reaction

Cobalt supported on dendronized magnetic nanoparticles: A new highly efficient and recyclable catalyst for the Mizoroki–Heck cross‐coupling reaction

Magnetically Recoverable Catalysts: Catalysis in Synthesis of Polyhydroquinolines

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