Efficient preparation of acidic ionic liquid-functionalized reduced graphene oxide and its catalytic performance in synthesis of benzimidazole derivatives

Hanoon, H. D.; Kowsari, Elaheh; Abdouss, Majid; Zandi, Hassan Gharayagh; Ghasemi, Mehdi

doi:10.1007/s11164-016-2727-0

Cited by 27 publications

(2 citation statements)

References 48 publications

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“…After recovery from the reaction mixture, the catalyst was reused seven times without any significant loss of activity. Hanoon et al [163] reported an efficient method for the facile synthesis of biologically relevant benzimidazole derivatives [164] using an acidic ionic liquid covalently supported on graphene sheets (A-FGO). The catalyst was efficiently synthesized and characterized using FTIR, SEM, X-ray photoelectron spectroscopy, EDS and X-ray diffraction techniques.…”

Section: Ionic Liquid Supported On Go As Catalystmentioning

confidence: 99%

Recent advances in the catalytic applications of GO/rGO for green organic synthesis

Sachdeva

2020

Green Processing and Synthesis

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Graphene is considered a promising catalyst candidate due to its 2D nature, single-atom thickness, zero bandgap and very high surface to volume ratio. Further, graphene oxide (GO) has been used as a catalytic support material for metal/metal oxide nanoparticles due to its tunable electrical properties. In addition, its high chemical stability and ultrahigh thermal conductivity may possibly promote high loading of catalytically active sites. This review article focuses on the recent progress in the catalytic applications of GO especially (i) as catalytic-support material (GO/reduced graphene oxide supported metal/metal oxide nanohybrids) for the green synthesis of biologically relevant molecules, (ii) for metal-free catalysis and (iii) for electrocatalysis, with special focus on graphene contribution to catalytic efficiency. The critical overview and future perspectives are also discussed.

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Section: Ionic Liquid Supported On Go As Catalystmentioning

confidence: 99%

Recent advances in the catalytic applications of GO/rGO for green organic synthesis

Sachdeva

2020

Green Processing and Synthesis

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“…[17] Herein, the catalyst plays a crucial role. Thus far, a variety of catalytic systems involve acidic ionic liquid, [18] organic acid (TsOHÀ SiO 2 [19] ), Lewis acids (FeCl 3 À SiO 2 , [20] CdCl 2 [21] ), metal oxide (CuO, [22] MnO 2 ), metal trifluoride (Zn(OTf) 2 , [23] In(OTf) 3 [24] ) and some organic compounds such as IBD, [25] etc.. Although some catalysts are effective, their complicated separation, purification and recycling problems severely limit their application in industry.…”

Section: Introductionmentioning

confidence: 99%

A Magnetic Fe₃O₄/Modified Bentonite Composite as Recyclable Heterogeneous Catalyst for Synthesizing 2‐Substituted Benzimidazoles

et al. 2023

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An efficient and convenient synthesis of 2‐substituted benzimidazoles catalyzed by magnetic Fe3O4 supported by modified bentonite (MB) was developed. Herein, a separable, magnetic catalyst Fe3O4/MB was successfully prepared on the basis of exploring Fe3O4 synthesis by co‐precipitation method. Fe3O4 was obtained in 96.09 % yield using sweet orange oil as a reducing and protecting agent. The result showed that the sweet orange oil played a crucial role in the preparation of Fe3O4. Fe3O4 and Fe3O4/MB were characterized by powder XRD, SEM, EDX, XPS and BET, and were further applied to catalyze the synthesis of 2‐substituted benzimidazoles. The applicability of the substrate was investigated on the basis of optimizing the reaction conditions. As a consequence, 2‐substituted benzimidazoles were obtained in 37.01–91.68 % yield. It suggested that Fe3O4/MB was an environmentally friendly and low‐cost catalyst possessing good catalytic activity, broader substrate adaptability and excellent recyclability. It is a promising catalyst in industrial production.

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Graphene‐Based Catalysts: Emerging Applications and Potential Impact

Alam,

Allag,

Naveed‐Ur‐Rehman

et al. 2024

The Chemical Record

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Carbon nanofillers in general and graphene in particular are considered as promising potential candidates in catalysis due to their two‐dimensional (2D) nature, zero bandwidth, single atom thickness with a promising high surface area: volume ratio. Additionally, graphene oxide via result of tunable electrical properties has also been developed as a catalytic support for metal and metal oxide nanofillers. Moreover, the possession of higher chemical stability followed by ultrahigh thermal conductivity plays a prominent role in promoting higher reinforcement of catalytically active sites. In this review we have started with an overview of carbon nanofillers as catalyst support, their main characteristics and applications for their use in heterogeneous catalysis. The review article also critically focusses on the catalytic properties originating from both functional groups as well as doping. An in‐depth literature on the various reaction catalysed by metal oxide based nanoparticles supported on GO/rGO has also been incorporated with a special focus on the overall catalytic efficiency with respect to graphene contribution. The future research prospective in the aforementioned field has also been discussed.

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Efficient preparation of acidic ionic liquid-functionalized reduced graphene oxide and its catalytic performance in synthesis of benzimidazole derivatives

Cited by 27 publications

References 48 publications

Recent advances in the catalytic applications of GO/rGO for green organic synthesis

Recent advances in the catalytic applications of GO/rGO for green organic synthesis

A Magnetic Fe₃O₄/Modified Bentonite Composite as Recyclable Heterogeneous Catalyst for Synthesizing 2‐Substituted Benzimidazoles

Graphene‐Based Catalysts: Emerging Applications and Potential Impact

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Efficient preparation of acidic ionic liquid-functionalized reduced graphene oxide and its catalytic performance in synthesis of benzimidazole derivatives

Cited by 27 publications

References 48 publications

Recent advances in the catalytic applications of GO/rGO for green organic synthesis

Recent advances in the catalytic applications of GO/rGO for green organic synthesis

A Magnetic Fe3O4/Modified Bentonite Composite as Recyclable Heterogeneous Catalyst for Synthesizing 2‐Substituted Benzimidazoles

Graphene‐Based Catalysts: Emerging Applications and Potential Impact

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A Magnetic Fe₃O₄/Modified Bentonite Composite as Recyclable Heterogeneous Catalyst for Synthesizing 2‐Substituted Benzimidazoles