Palladium-modified functionalized cyclodextrin as an efficient and recyclable catalyst for reduction of nitroarenes

Guo, Yafei; Li, Jiuling; Zhao, Fei; Lan, Guineng; Li, Liang; Liu, Yuqi; Si, Yunsen; Jiang, Yubo; Yang, Bo; Yang, Rui

doi:10.1039/c5ra23271f

Cited by 27 publications

(16 citation statements)

References 39 publications

(2 reference statements)

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“…Thus, this method for studying heterogeneous catalysis could be used to rapidly screen the activity of different nanocatalysts for a given reaction. Once again, the approximately 42 % yield within 30 s (Figure f) represents a significantly faster rate of reduction of 4‐nitrophenol on the Pd‐NP‐doped paper when compared with conventional bulk‐phase methods, which require minutes to hours …”

Section: Figuresupporting

confidence: 89%

A Study of Heterogeneous Catalysis by Nanoparticle‐Embedded Paper‐Spray Ionization Mass Spectrometry

2016

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We have developed nanoparticle‐embedded paper‐spray mass spectrometry for studying three types of heterogeneously catalyzed reactions: 1) Palladium‐nanoparticle‐catalyzed Suzuki cross‐coupling reactions, 2) palladium‐ or silver‐nanoparticle‐catalyzed 4‐nitrophenol reduction, and 3) gold‐nanoparticle‐catalyzed glucose oxidation. These reactions were almost instantaneous on the nanocatalyst‐embedded paper, which subsequently transferred the transient intermediates and products to a mass spectrometer for their detection. This in situ method of capturing transient intermediates and products from heterogeneous catalysis is highly promising for investigating the mechanism of catalysis and rapidly screening catalytic activity under ambient conditions.

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Section: Figuresupporting

confidence: 89%

A Study of Heterogeneous Catalysis by Nanoparticle‐Embedded Paper‐Spray Ionization Mass Spectrometry

2016

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“…Once again, the approximately 42 %y ield within 30 s ( Figure 3f) represents as ignificantly faster rate of reduction of 4-nitrophenol on the Pd-NP-doped paper when compared with conventional bulk-phase methods,w hich require minutes to hours. [16] Oxidation of organic molecules by an eco-friendly catalytic method is of growing interest for developing sustainable chemical processes. [17] Particularly,the oxidation of glucose is important in biosensor development.…”

Section: Angewandte Chemiementioning

confidence: 99%

A Study of Heterogeneous Catalysis by Nanoparticle‐Embedded Paper‐Spray Ionization Mass Spectrometry

2016

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We have developed nanoparticle-embedded paper-spray mass spectrometry for studying three types of heterogeneously catalyzed reactions: 1) Palladium-nanoparticle-catalyzed Suzuki cross-coupling reactions, 2) palladium- or silver-nanoparticle-catalyzed 4-nitrophenol reduction, and 3) gold-nanoparticle-catalyzed glucose oxidation. These reactions were almost instantaneous on the nanocatalyst-embedded paper, which subsequently transferred the transient intermediates and products to a mass spectrometer for their detection. This in situ method of capturing transient intermediates and products from heterogeneous catalysis is highly promising for investigating the mechanism of catalysis and rapidly screening catalytic activity under ambient conditions.

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“…Aromatic amines are crucial intermediates in the preparation of several nitrogen‐containing biologically active compounds, agrochemicals, dyes, polymers, etc . They are the precursors for many important intermediates like amides, imines, azo compounds, isocyanates and diazonium salts which can be converted to other functional groups . The importance of aryl amines as raw materials for these applications has spurred extensive research in developing new and sustainable processes for the reduction of nitroarenes …”

Section: Introductionmentioning

confidence: 99%

Heteroatom‐Doped Carbon Nanomaterials as Metal‐Free Catalysts for the Reduction of 4‐Nitrophenol

2018

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In this work it is described the preparation and characterization of multi-walled carbon nanotubes and graphene flakes doped with heteroatoms, namely N, P, B, and S, through simple ball milling procedures with adequate precursors, followed by thermal treatments. Ball milling the carbon nanomaterials with melamine resulted in the introduction of pyrrolic, pyridinic and quaternary N atoms on the graphitic structure. Using triphenylphosphine as the phosphorous precursor induced the formation of RÀO-PO(OH) 2 functionalities. Materials prepared with boric acid showed the presence of boronic groups (C-BO 2 ) and B atoms in B 2 O 3 . S-doped materials presented tiophene-S type atoms. The catalytic studies showed that all the doped carbon materials were active catalysts in the reduction of 4-nitrophenol (4-NP), and that the modifications introduced by the doping procedures, overall yielded catalysts with superior activity in regard to their pristine counterparts. Reusability experiments revealed no loss of catalytic activity up to three catalytic cycles for the doped carbon nanotubes, whereas the graphene flake materials showed some deterioration of catalytic performance.

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Palladium-modified functionalized cyclodextrin as an efficient and recyclable catalyst for reduction of nitroarenes

Abstract: A kind of palladium-modified functionalized cyclodextrin catalytic system was synthesized and characterized. It showed high activity in the reduction of nitroarenes with the absence of sodium borohydride in water at room temperature.

Cited by 27 publications

References 39 publications

A Study of Heterogeneous Catalysis by Nanoparticle‐Embedded Paper‐Spray Ionization Mass Spectrometry

A Study of Heterogeneous Catalysis by Nanoparticle‐Embedded Paper‐Spray Ionization Mass Spectrometry

A Study of Heterogeneous Catalysis by Nanoparticle‐Embedded Paper‐Spray Ionization Mass Spectrometry

Heteroatom‐Doped Carbon Nanomaterials as Metal‐Free Catalysts for the Reduction of 4‐Nitrophenol

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