Phosphine/phenylacetylide-ligated Au clusters for multicomponent coupling reactions

Chen, Yongdong; Liu, Chao; Abroshan, Hadi; Li, Zhimin; Wang, Jin; Li, Gao; Haruta, Masatake

doi:10.1016/j.jcat.2016.05.023

Cited by 48 publications

(48 citation statements)

References 56 publications

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“…In fact, the dehydrogenation/hydrogenation catalysts for the ammonolysis of alcohols have been extensively studied. The active components are usually transition metals such as Ni, Cu, Co, Au, Ir, Pt and Pd [10,[16][17][18][19][20]. Ni has been widely studied for the reaction due to its high activity, abundance and low price.…”

Section: Introductionmentioning

confidence: 99%

Amination of isopropanol to isopropylamine over a highly basic and active Ni/LaAlSiO catalyst

Wen

Chen

et al. 2017

Journal of Catalysis

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Section: Introductionmentioning

confidence: 99%

Amination of isopropanol to isopropylamine over a highly basic and active Ni/LaAlSiO catalyst

Wen

Chen

et al. 2017

Journal of Catalysis

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“…Because Haruta et al found the preparation method of highly active gold nanoparticle catalyst on the active support surface in 1987, a large number, extensive and in‐depth of researches about nanoscale gold catalysts were published in the next 230 years . In recent years, with the consciousness improvement in energy crisis and environmental protection, there is more attention paid to energy, chemical industry, and environmental problems .…”

Section: Introductionmentioning

confidence: 90%

“…Because Haruta et al 1 found the preparation method of highly active gold nanoparticle catalyst on the active support surface in 1987, a large number, extensive and in-depth of researches about nanoscale gold catalysts were published in the next 230 years. 2,3 In recent years, with the consciousness improvement in energy crisis and environmental protection, [4][5][6][7][8] there is more attention paid to energy, chemical industry, and environmental problems. [9][10][11][12][13][14][15][16] Since we found that gold catalysts exhibited catalytic activity to CO oxidation at a low temperature, the applications of gold catalysts to solve energy and environmental problems have appeared substantially.…”

Section: Introductionmentioning

confidence: 99%

Structure‐activity relationship of supported Au catalysts with high catalytic activity by modifying the inactive supports

Wang

Huo

et al. 2018

Surface & Interface Analysis

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Three supported Au catalysts have been prepared by the deposition‐precipitation method by using the active carbon (AC), SiO2‐AC, and SiO2‐AC‐hollowed. The 3 supports were characterized by Brunauer‐Emmett‐Teller and scanning electron microscopy. Meanwhile, the supported Au nanoparticles were also characterized in detail by X‐ray powder diffraction, transmission electron microscopy, H2‐TRP, and X‐ray photoelectron spectroscopy, and their catalytic activity and stability in CO oxidation was evaluated. The results demonstrated that Au supported on SiO2‐AC‐hollowed exhibited much higher catalytic activity with acceptable stability for 72 hours than the other 2. We attributed to finer supported Au nanoparticles with abundant low‐coordinated Au atoms on the surfaces of hollowed supports with large special surface area and abundant pore structure. In summary, we successfully found an efficient and cheap method to prepare catalysts with high catalytic activity and acceptable stability by modifying the inactive supports.

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“…The catalytic performance of the Au 25 (PPh 3 ) 10 (PA) 5 X 2 was investigated in different solvents and reaction temperatures [62]. The most prominent feature was that the polarity of the solvent had a great influence on catalytic activity.…”

Section: Catalytic Propertiesmentioning

confidence: 99%

“…An induction period (0 to 3 h) appeared and the conversion slightly increased during the induction period. After the induction period, the reaction conversion of gold clusters significantly increased in the time evolution for A 3 -coupling [62]. The results showed that some phosphine ligands are removed to generate catalytic active sites, which associates with the surface gold atoms.…”

Section: Catalytic Propertiesmentioning

confidence: 99%

Heterogeneous Cross-Coupling over Gold Nanoclusters

Shi

Qin

et al. 2019

Nanomaterials

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Au clusters with the precise numbers of gold atoms, a novel nanogold material, have recently attracted increasing interest in the nanoscience because of very unique and unexpected properties. The unique interaction and electron transfer between gold clusters and reactants make the clusters promising catalysts during organic transformations. The AunLm nanoclusters (where L represents organic ligands and n and m mean the number of gold atoms and ligands, respectively) have been well investigated and developed for selective oxidation, hydrogenation, photo-catalysis, and so on. These gold clusters possess unique frameworks, providing insights into the catalytic processes and an excellent arena to correlate the atomic frameworks with their intrinsic catalytic properties and to further investigate the tentative reaction mechanisms. This review comprehensively summarizes the very latest advances in the catalytic applications of the Au nanoclusters for the C−C cross-coupling reactions, e.g., Ullmann, Sonogashira, Suzuki cross-couplings, and A3−coupling reactions. It is found that the proposed catalytically active sites are associated with the exposure of gold atoms on the surface of the metal core when partial capping organic ligands are selectively detached under the reaction conditions. Finally, the tentative catalytic mechanisms over the ligand-capped Au nanoclusters and the relationship of structure and catalytic performances at the atomic level using computational methods are explored in detail.

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Phosphine/phenylacetylide-ligated Au clusters for multicomponent coupling reactions

Cited by 48 publications

References 56 publications

Amination of isopropanol to isopropylamine over a highly basic and active Ni/LaAlSiO catalyst

Amination of isopropanol to isopropylamine over a highly basic and active Ni/LaAlSiO catalyst

Structure‐activity relationship of supported Au catalysts with high catalytic activity by modifying the inactive supports

Heterogeneous Cross-Coupling over Gold Nanoclusters

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