A PdAg bimetallic nanocatalyst for selective reductive amination of nitroarenes

Li, Linsen; Niu, Zhiqiang; Cai, Shuangfei; Zhi, Yun; Li, Hao; Rong, Hongpan; Liu, Lichen; Liu, Lei; He, Wei; Li, Yadong

doi:10.1039/c3cc00249g

Cited by 67 publications

(33 citation statements)

References 39 publications

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“…The conditions applied herein for the amination or amidation reaction of aryl halides lead to a convenient procedure and better yields in overall shorter reaction times than in previous studies with other heterogeneous or homogeneous catalyst systems. [37][38][39][40][41][42][43][44] Therefore, because of its mild reaction conditions and its compliance with green chemistry principles, our methodology has the potential to be used in the CÀN bond formation whether in a laboratory or an industrial process. In addition, complete removal of the metalbased catalyst from the reaction media makes it possible to use this method in pharmaceutical and other sensitive synthetic procedures.…”

Section: Discussionmentioning

confidence: 99%

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CN Bond Formation Using Highly Effective and Reusable Nickel Ferrite Nanoparticles in Water

et al. 2014

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The inside cover picture, by Kerr and co‐workers, depicts a series of robust, yet highly active Ir(I) complexes bearing specifically encumbered N‐heterocyclic carbene and phosphine ligands. These complexes are extremely effective in hydrogen isotope exchange processes (with D or T), with low catalyst loadings, good levels of selectivity, and broad directing group applicability. The labelling of several complex drug molecules further highlights the catalysts utility. Mechanistic insight into the operation of these catalysts has also been provided by a combination of NMR and theoretical DFT studies. Details of this work can be found in the full paper on .

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Section: Discussionmentioning

confidence: 99%

“…[ [37][38][39][40] In 2013, Kumar et al reported a copper ferrite catalyst system for the same reaction. [41] These copper ferrite nanoparticles were previously used by Sun et al in the CÀO bond formation reaction.…”

Section: Introductionmentioning

confidence: 99%

CN Bond Formation Using Highly Effective and Reusable Nickel Ferrite Nanoparticles in Water

et al. 2014

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“…It is known that the use of amine-borane complex as reductant is very effective for the preparation of monodispersable NPs. For example, Li and coworkers [29] reported that uniform PdAg NPs could be synthesized by borane-tert-butylamine complex. Sun et al [30] reported that monodisperse Pd NPs could be synthesized by tributylamine-borane complex.…”

Section: Synthesis and Characterization Of Aupd Alloy Npsmentioning

confidence: 98%

Monodispersed AuPd nanoalloy: composition control synthesis and catalytic properties in the oxidative dehydrogenative coupling of aniline

Yang

et al. 2015

Sci. China Chem.

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A series of AuPd@C nanoalloy catalysts with tunable compositions were successfully prepared by a co-reduction method. The use of borane-tert-butylamine complex as reductant and oleylamine as both solvent and reductant was very effective for the preparation of the monodispersed nanoalloy. We evaluated the catalytic activity of these AuPd@C nanoalloys for oxidative dehydrogenative coupling of aniline, which showed better catalytic activity than equal amounts of sole Au@C or Pd@C catalyst. The Au 1 Pd 3 @C catalyst exhibited the best performance, indicating that the conversion and selectivity were improved along with the increase of Pd composition. However if the Pd composition was too high in the AuPd alloy, Au 1 Pd 7 @C achieved only 81% conversion in this reaction.

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“…Recently, bimetallic nanomaterials (e.g., NPs) have emerged as a promising class of catalysts for a variety of chemical reactions . In many cases, bi‐MNPs may show higher catalytic efficiency compared to their monometallic counterparts, most likely because of the strong synergistic effects of two integrated metals in one particle .…”

Section: Applications Of Bi‐mncsmentioning

confidence: 99%

Recent Advances in the Synthesis and Applications of Ultrasmall Bimetallic Nanoclusters

Yuan

Dou

Zheng

et al. 2015

Part & Part Syst Charact

107

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1wileyonlinelibrary.com www.particle-journal.com www.MaterialsViews.com REVIEWUltrasmall bimetallic nanoclusters (or bi-MNCs for short) have recently emerged as a new class of multi-functional nanoparticles due to their ultrasmall size (typically below 2 nm), unique molecular-like properties (e.g., quantized charging and strong luminescence), controlled cluster compositions (at the atomic level), synergistic physicochemical properties, and rich surface chemistry. Such intriguing properties have motivated the cluster community to develop effi cient methods for the synthesis of high-quality bi-MNCs, which can also be seen from the quantum increase of reported synthetic protocols for bi-MNCs. Recent advances in the development of effi cient synthesis methods for high-quality bi-MNCs also facilitate the application explorations of bi-MNCs in diverse fi elds like catalysis, sensors, and biomedicine. This Review article fi rst surveys current progress in the synthesis of bi-MNCs, especially for those NCs with good control of cluster size and composition, followed by a detailed discussion on some unique physicochemical properties of bi-MNCs. The intriguing properties of bi-MNCs have made them ideal platforms for application explorations in catalysis, sensors, and biomedicine, which are discussed in the second section. In the last section, a brief outlook on future developments of functional bi-MNCs is presented, with a particular focus on the controlled synthesis and practical applications of bi-MNCs. IntroductionNoble metal nanoclusters (MNCs), such as Au and Ag NCs, typically comprising of a hundred metal atoms or less, are a subclass of metal nanoparticles (MNPs). [ 1,2 ] MNCs contain a small metal core with sizes below 2 nm and an organic ligand shell. [3][4][5] Particles in this sub-2-nm size region show characteristic quantum confi nement effects, which leads to their discrete and size-dependent electronic transitions. Sub-2-nm MNCs also feature with unique geometric cluster structures. These properties are distinctively different from their larger counterparts-MNPs with core sizes above 2 nm. For example, MNPs show quasi-continuous electronic states and typically adopt a face centered cubic ( fcc) atomic packing. [ 2,6 ] as magnetism, [ 7,8 ] HOMO-LUMO transitions, [9][10][11] quantized charging, [ 10,12 ] and strong luminescence. [13][14][15][16] Such intriguing physicochemical properties have made MNCs good platforms to address some key challenges in the fi elds of catalysis, energy conversion, drug delivery, sensor development, biomedicine, and nanophotonics. [17][18][19][20][21][22][23][24][25][26][27][28][29] The diverse yet promising applications of MNCs have also motivated rapid progress in the development of functional MNCs. [30][31][32][33] In the wake of extensive development of mono-metallic NCs (mono-MNCs for short), more recently, the cluster community has begun to investigate functional NCs comprising of two or more metal species, and such bi-or multi-metallic NCs (bi-or multi-MNCs for short) have ...

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A PdAg bimetallic nanocatalyst for selective reductive amination of nitroarenes

Cited by 67 publications

References 39 publications

CN Bond Formation Using Highly Effective and Reusable Nickel Ferrite Nanoparticles in Water

CN Bond Formation Using Highly Effective and Reusable Nickel Ferrite Nanoparticles in Water

Monodispersed AuPd nanoalloy: composition control synthesis and catalytic properties in the oxidative dehydrogenative coupling of aniline

Recent Advances in the Synthesis and Applications of Ultrasmall Bimetallic Nanoclusters

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