Covalently Copper(II) Porphyrin Cross-Linked Graphene Oxide: Preparation and Catalytic Activity

Khojastehnezhad, Amir; Bakavoli, Mehdi; Ali, Javid; Siuki, Mohammad Mehdi Khakzad; Moeinpour, Farid

doi:10.1007/s10562-019-02665-2

Cited by 38 publications

(15 citation statements)

References 46 publications

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“…The FT‐IR technique was also applied for analysis of chemical structure of all catalyst preparation processes (Figure ). According to the literature, for the GO, there are five specific peaks at about 3400, 1700, 1600, 1200 and 1000 cm −1 which are attributed to the OH, C=O, C=C, C−O‐C, and ‐OH groups on the surface and edges of GO and all these peaks are existed in our spectrum at 3368, 1727, 1618, 1223 and 1052 cm −1 which conform the successful synthesis of GO (Figure a). The Figure b demonstrates the FT‐IR spectrum of functionalized GO by metformin organic ligand.…”

Section: Resultssupporting

confidence: 81%

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: Resultssupporting

confidence: 81%

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

et al. 2020

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“…In the FT‐IR spectrum of GO (Figure c), the band at 3408 cm −1 corresponds to the O−H stretching bands of hydroxy and carboxylic acid sections. The bands appeared at 1726, 1590, 1223 cm −1 attributed to the C=O, C=C, and C–O of the carboxyl group, aromatic rings, and epoxy group, respectively . After immobilization of the porphyrin molecule on the GO (Figure d), the sharp band appears at around 3387 cm −1 ascribed to the stretching vibrations of N−H of the porphyrin ring.…”

Section: Resultsmentioning

confidence: 99%

Co(II)‐Porphyrin Immobilized on Graphene Oxide: An Efficient Catalyst for the Beckmann Rearrangement

et al. 2019

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In this report, the synthesis of amides from aldoximes (Beckmann rearrangement) has been reported using cobalt(II) porphyrin covalently linked to graphene oxide as a nano heterogeneous catalyst. The prepared catalyst was characterized by applying of FT-IR, TGA, TEM, SEM, EDX, ICP and UV-Vis techniques. All analyses confirm the successful insertion of cobalt into the porphyrin ring and covalently linkage of Co-Porphyrin on the graphene oxide. Moreover, the prepared catalyst was applied in order to investigate its performance in the Beckmann rearrangement. This heterogeneous catalyst exhibited excellent catalytic efficiency with a high yield of products. Also, the suggested catalyst could be recycled for five runs without a dramatic decrease in its catalytic activity or metal leaching. Results and discussion Preparation and characterization of the GO-CoPPhThe catalyst was prepared according to Scheme 1. The porphyrin (PPh) macromolcule was synthesized according to [a] Z.

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“…5,10,15,20‐Tetrakis(aminophenyl)porphyrin copper complex grafted on GO (GO–CuPPh) was utilized as a cross‐linked catalyst for propargyl amines synthesis (Scheme 45). [ 105 ] The catalyst was obtained from graphite oxide chemically modified with SOCl 2 in DMF to produce GO–COCl. The porphyrin was synthesized through two steps.…”

Section: Application Of Copper Modified Graphene Oxide Catalysts For Carbon‐nitrogen Bond Formationmentioning

confidence: 99%

Carbon–nitrogen bond formation using modified graphene oxide derivatives decorated with copper complexes and nanoparticles

Mirza‐Aghayan

Saeedi

Boukherroub

2021

Applied Organom Chemis

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Several catalytic reactions such as Ullmann, Chan–Lam, Huisgen 1,3‐dipolar cycloaddition, [2 + 3] cycloaddition, condensation, and coupling reactions under suitable conditions have been used for the synthesis of fundamental structures containing a carbon–nitrogen (C–N) bond. Graphene oxide (GO) and its derivatives as heterogeneous catalysts have attracted considerable attention for the synthesis of organic building blocks. Loading of GO derivatives with copper complexes or nanoparticles, as one of the most abundant and low toxic transition metals, allowed to design new composites with predominant ability to C–N bond formation. In this review article, we present a comprehensive overview on the synthesis of building blocks containing a C–N bond such as amines, triazoles, tetrazoles, propargyl amines, imidazoles, and benzodiazepines using GO derivatives loaded with copper complexes or nanoparticles.

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Covalently Copper(II) Porphyrin Cross-Linked Graphene Oxide: Preparation and Catalytic Activity

Cited by 38 publications

References 46 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

Co(II)‐Porphyrin Immobilized on Graphene Oxide: An Efficient Catalyst for the Beckmann Rearrangement

Carbon–nitrogen bond formation using modified graphene oxide derivatives decorated with copper complexes and nanoparticles

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