Carbon Nanotube–Ruthenium Hybrids for the Partial Reduction of 2‐Nitrochalcones: Easy Access to Quinoline <i>N</i>‐Oxides

Basu, Pallabita; Prakash, Praveen; Gravel, Edmond; Shah, Nimesh; Bera, Kalisankar; Doris, Eric; Namboothiri, Irishi N. N.

doi:10.1002/cctc.201600042

Cited by 21 publications

(14 citation statements)

References 41 publications

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“…Doris et al . also reported 85‐Ru , endowed with ruthenium nanoparticles, which has been used as catalyst for promoting the tandem reaction of nitrochalcones into quinoline N ‐oxides through the partial reduction of the nitro group to a hydroxylamine, followed by in situ intramolecular condensation to the carbonyl group (Scheme ) . The catalyst has been used in 0.4 mol % and resulted recyclable for 5 cycles with no losses in activity.…”

Section: Carbon Nanotubes‐based Catalystsmentioning

confidence: 99%

Modified Nanocarbons for Catalysis

2018

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Nanocarbons represent useful scaffolds in the preparation of last generation nanostructured catalysts, and their chemical functionalization through covalent or non‐covalent modification is becoming an important tool for introducing well‐distributed anchoring points and, in the meantime, could be the first step toward the assembling of hybrid nanostructured materials with a hierarchical order. In this Review are reported synthesis and catalytic applications of chemically modified nanocarbons such as fullerene, carbon nanotubes, graphene, nanohorns and nanodiamonds in organocatalytic and metal‐based (metal nanoparticles, organometallic complexes) reactions, covering major chemical reactions encompassing, the oxidation of alcohols, aldehydes, olefins, and silanes, hydrogenation reactions of aldehydes, ketones, and alkenes, dehydrogenative coupling of silanes, C−C coupling reactions, epoxidation of alkenes, CO2 fixation into cyclic carbonates, and asymmetric reactions, among others.

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Section: Carbon Nanotubes‐based Catalystsmentioning

confidence: 99%

Modified Nanocarbons for Catalysis

2018

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“…4 However, the application of nanostructured carbon forms such as carbon nanotubes (CNTs) and more recently carbon aerogels 5 are issues of interest and continuously growing. For instance, Pd/Co nanoparticles supported on multi-walled CNTs have recently reported in the microwave-assisted efficient synthesis of substituted tetrazoles 6 , Cu loadings on Ni/carbon nanotubes catalysts in the hydrodeoxygenation reaction of guaiacol 7 , and RuCNT nanohybrid in the selective catalytic reduction of nitrochalcones to quinoline N-oxides 8 . AuCNTs have been also found to be interesting catalysts in diverse chemical transformations such as oxidation reaction of silanes 9 , alcohols 10 , and phenols 11 , reductive amination 12 deoxygenation of amine N-oxides 13 , aldehydes N-formylation 14 and in the synthesis of quinoxalines 15 .…”

Section: Introductionmentioning

confidence: 99%

Cobalt oxide–carbon nanocatalysts with highly enhanced catalytic performance for the green synthesis of nitrogen heterocycles through the Friedländer condensation

et al. 2019

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“…It was reasoned that the reactant molecules were first adsorbed on the CNT surface via π-interactions next to basic oxygen moieties, which facilitated dehydrogenation with concomitant formation of surface hydroxyl groups [19]. Taking advantage of surface modification techniques, various nanoparticle as well as molecular catalysts could be anchored on carbon nanotubes [21] (Figure 1).…”

Section: Carbocatalysismentioning

confidence: 99%

Carbocatalytic Activity of Graphene Oxide in Organic Synthesis

Majumdar¹,

Sarma²,

Sarma³

2018

Graphene Oxide - Applications and Opportunities

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Nanochemistry has evolved as an important part in catalysis for both academic as well as industrial research. Traditional homogeneous catalytic systems have gained significant importance due to the molecular level analysis of their catalytic activity and the excellent homogeneity of the catalysts and the reactants. However, removal of the catalysts from the reaction mixture without product contamination requires tedious purification steps. With increasing ecological and economical demands towards sustainable chemical synthesis, the recovery and reuse of catalysts has been an important factor. In this drive, various heterogeneous catalytic systems including mesoporous materials, solid catalysts, organometallics, noble-metal nanoparticles, etc. have been developed for photochemical and electrochemical conversion, environmental remediation as well as catalyst for important chemical transformations. Carbon nanomaterial specially graphene oxide and carbon dots have received significant research importance due to their large scale availability, easy surface modification, non-toxicity and other surface properties. Here, we review the continuous progress in the development of graphene based materials and their catalytic activity in organic synthesis.

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Carbon Nanotube–Ruthenium Hybrids for the Partial Reduction of 2‐Nitrochalcones: Easy Access to Quinoline N‐Oxides

Cited by 21 publications

References 41 publications

Modified Nanocarbons for Catalysis

Modified Nanocarbons for Catalysis

Cobalt oxide–carbon nanocatalysts with highly enhanced catalytic performance for the green synthesis of nitrogen heterocycles through the Friedländer condensation

Carbocatalytic Activity of Graphene Oxide in Organic Synthesis

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