1
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Colliere V, Verelst M, Lecante P, Axet MR. Colloidal ruthenium catalysts for selective quinaldine hydrogenation: Ligand and solvent effects. Chemistry 2023:e202302131. [PMID: 38133951 DOI: 10.1002/chem.202302131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 12/10/2023] [Accepted: 12/22/2023] [Indexed: 12/24/2023]
Abstract
Colloidal Ru nanoparticles (NP) display interesting catalytic properties for the hydrogenation of (hetero)arenes as they proceed efficiently in mild reaction conditions. In this work, a series of Ru based materials was used in order to selectively hydrogenate quinaldine and assess the impact of the stabilizing agent on their catalytic performances. Ru nanoparticles stabilized with polyvinylpyrrolidone (PVP) and 1-adamantanecarboxylic acid (AdCOOH) allowed to obtain 5,6,7,8-tetrahydroquinaldine with a remarkable selectivity in mild reaction conditions by choosing the suitable solvent. The presence of a carboxylate ligand on the surface of the Ru NP led to an increase in the activity when compared to Ru/PVP catalyst. The stabilizing agent had also an impact on the selectivity, as carboxylate ligand modified catalysts promoted the selectivity towards 1,2,3,4-tetrahydroquinaldine, with bulky carboxylate displaying the highest ones.
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Affiliation(s)
- Vincent Colliere
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205 route de Narbonne, BP 44099, F-31077, Toulouse Cedex 4, France
| | - Marc Verelst
- Centre d'Elaboration de Matériaux et d'Etudes Structurales, Université de Toulouse-UPS, 29 rue Jeanne Marvig, Cedex 4, 31055, Toulouse, BP 94347, France
| | - Pierre Lecante
- Centre d'Elaboration de Matériaux et d'Etudes Structurales, Université de Toulouse-UPS, 29 rue Jeanne Marvig, Cedex 4, 31055, Toulouse, BP 94347, France
| | - M Rosa Axet
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205 route de Narbonne, BP 44099, F-31077, Toulouse Cedex 4, France
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2
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Ballesteros-Soberanas J, Leyva-Pérez A. Electron-Poor Phosphines Enable the Selective Semihydrogenation Reaction of Alkynes with Pd on Carbon Catalysts. J Phys Chem Lett 2023; 14:965-970. [PMID: 36689618 PMCID: PMC9900635 DOI: 10.1021/acs.jpclett.2c03428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 01/20/2023] [Indexed: 06/17/2023]
Abstract
An alternative to the Lindlar catalyst for the semihydrogenation reaction of alkynes to alkenes is of high interest. Here we show that palladium on carbon (Pd/C), i.e., a widely available supported Pd catalyst, is converted from an unselective to a chemoselective catalyst during the semihydrogenation reaction of alkynes, after the addition of catalytic amounts of commercially available electron-poor phosphines. The catalytic activity is ≤7 times greater, and the selectivity is comparable to that of the industrial benchmark Lindlar catalyst.
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3
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Wu D, Han D, Zhou W, Streiff S, Khodakov AY, Ordomsky VV. Surface modification of metallic catalysts for the design of selective processes. CATALYSIS REVIEWS 2022. [DOI: 10.1080/01614940.2022.2079809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Dan Wu
- UCCS–Unité de Catalyse et Chimie du Solide, Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ, Artois, France
- Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464 CNRS-Solvay, Shanghai, Jiangsu, People’s Republic of China
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan, China
| | - Dandan Han
- College of Science, Henan Agricultural University, Zhengzhou, Henan, China
| | - Wenjuan Zhou
- Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464 CNRS-Solvay, Shanghai, Jiangsu, People’s Republic of China
| | - Stephane Streiff
- Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464 CNRS-Solvay, Shanghai, Jiangsu, People’s Republic of China
| | - Andrei Y. Khodakov
- UCCS–Unité de Catalyse et Chimie du Solide, Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ, Artois, France
| | - Vitaly V. Ordomsky
- UCCS–Unité de Catalyse et Chimie du Solide, Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ, Artois, France
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4
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Miyamura H, Kobayashi S. Reaction Rate Acceleration of Cooperative Catalytic Systems: Metal Nanoparticles and Lewis Acids in Arene Hydrogenation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hiroyuki Miyamura
- The University of Tokyo: Tokyo Daigaku Department of Chemistry JAPAN
| | - Shu Kobayashi
- The University of Tokyo Department of Chemistry, School of Science 7-3-1 Hongo, Bunkyo-ku 113-0033 Tokyo JAPAN
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5
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Miyamura H, Kobayashi S. Reaction Rate Acceleration of Cooperative Catalytic Systems: Metal Nanoparticles and Lewis Acids in Arene Hydrogenation. Angew Chem Int Ed Engl 2022; 61:e202201203. [PMID: 35358361 DOI: 10.1002/anie.202201203] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Indexed: 11/07/2022]
Abstract
Employing two distinct catalysts in one reaction medium synergistically is a powerful strategy for activating less reactive substrates. Although the approach has been well-developed in homogeneous conditions, it remains challenging and rare in heterogeneous catalysis, especially under gas-liquid-solid multiphase reaction conditions. Here, we describe the development of cooperative and synergistic catalyst systems of heterogeneous Rh-Pt bimetallic nanoparticle catalysts, Rh-Pt/DMPSi-Al2 O3 , and Sc(OTf)3 in the liquid phase for the hydrogenation of arenes under very mild conditions. Dramatic rate acceleration was achieved with cooperative activation. Remarkably, more challenging substrates that contained strong electron-donating groups and sterically hindered substituents were smoothly hydrogenated. Mechanistic insights into the cooperative activation of an aromatic substrate by heterogeneous metal nanoparticles and a soluble Lewis acid was obtained by kinetic studies and by direct observation of 1 H and 45 Sc NMR spectra.
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Affiliation(s)
- Hiroyuki Miyamura
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Shū Kobayashi
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
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6
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Zaera F. Designing Sites in Heterogeneous Catalysis: Are We Reaching Selectivities Competitive With Those of Homogeneous Catalysts? Chem Rev 2022; 122:8594-8757. [PMID: 35240777 DOI: 10.1021/acs.chemrev.1c00905] [Citation(s) in RCA: 69] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A critical review of different prominent nanotechnologies adapted to catalysis is provided, with focus on how they contribute to the improvement of selectivity in heterogeneous catalysis. Ways to modify catalytic sites range from the use of the reversible or irreversible adsorption of molecular modifiers to the immobilization or tethering of homogeneous catalysts and the development of well-defined catalytic sites on solid surfaces. The latter covers methods for the dispersion of single-atom sites within solid supports as well as the use of complex nanostructures, and it includes the post-modification of materials via processes such as silylation and atomic layer deposition. All these methodologies exhibit both advantages and limitations, but all offer new avenues for the design of catalysts for specific applications. Because of the high cost of most nanotechnologies and the fact that the resulting materials may exhibit limited thermal or chemical stability, they may be best aimed at improving the selective synthesis of high value-added chemicals, to be incorporated in organic synthesis schemes, but other applications are being explored as well to address problems in energy production, for instance, and to design greener chemical processes. The details of each of these approaches are discussed, and representative examples are provided. We conclude with some general remarks on the future of this field.
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Affiliation(s)
- Francisco Zaera
- Department of Chemistry and UCR Center for Catalysis, University of California, Riverside, California 92521, United States
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7
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Hong JC, Kuo TC, Yang GL, Hsieh CT, Shen MH, Chao TH, Lu Q, Cheng MJ. Atomistic Insights into Cl –-Triggered Highly Selective Ethylene Electrochemical Oxidation to Epoxide on RuO 2: Unexpected Role of the In Situ Generated Intermediate to Achieve Active Site Isolation. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03574] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Jia-Cheng Hong
- Department of Chemistry, National Cheng Kung University, Tainan 701, Taiwan
| | - Tung-Chun Kuo
- Department of Chemistry, National Cheng Kung University, Tainan 701, Taiwan
| | - Guo-Lin Yang
- Department of Chemistry, National Cheng Kung University, Tainan 701, Taiwan
| | - Chi-Tien Hsieh
- Department of Chemistry, National Cheng Kung University, Tainan 701, Taiwan
| | - Min-Hsiu Shen
- Department of Chemistry, National Cheng Kung University, Tainan 701, Taiwan
| | - Tzu-Hsuan Chao
- Department of Chemistry, National Cheng Kung University, Tainan 701, Taiwan
| | - Qi Lu
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 10084, China
| | - Mu-Jeng Cheng
- Department of Chemistry, National Cheng Kung University, Tainan 701, Taiwan
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8
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Wu D, Wang Q, Safonova OV, Peron DV, Zhou W, Yan Z, Marinova M, Khodakov AY, Ordomsky VV. Lignin Compounds to Monoaromatics: Selective Cleavage of C-O Bonds over a Brominated Ruthenium Catalyst. Angew Chem Int Ed Engl 2021; 60:12513-12523. [PMID: 33730419 DOI: 10.1002/anie.202101325] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Indexed: 11/09/2022]
Abstract
The cleavage of C-O linkages in aryl ethers in biomass-derived lignin compounds without hydrogenation of the aromatic rings is a major challenge for the production of sustainable mono-aromatics. Conventional strategies over the heterogeneous metal catalysts require the addition of homogeneous base additives causing environmental problems. Herein, we propose a heterogeneous Ru/C catalyst modified by Br atoms for the selective direct cleavage of C-O bonds in diphenyl ether without hydrogenation of aromatic rings reaching the yield of benzene and phenol as high as 90.3 % and increased selectivity to mono-aromatics (97.3 vs. 46.2 % for initial Ru) during depolymerization of lignin. Characterization of the catalyst indicates selective poisoning by Br of terrace sites over Ru nanoparticles, which are active in the hydrogenation of aromatic rings, while the defect sites on the edges and corners remain available and provide higher intrinsic activity in the C-O bond cleavage.
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Affiliation(s)
- Dan Wu
- Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464, CNRS-Solvay, 201108, Shanghai, P. R. China.,Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, 59000, Lille, France
| | - Qiyan Wang
- Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464, CNRS-Solvay, 201108, Shanghai, P. R. China.,Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, 59000, Lille, France
| | | | - Deizi V Peron
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, 59000, Lille, France
| | - Wenjuan Zhou
- Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464, CNRS-Solvay, 201108, Shanghai, P. R. China
| | - Zhen Yan
- Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464, CNRS-Solvay, 201108, Shanghai, P. R. China
| | - Maya Marinova
- Univ. Lille, CNRS, INRAE, Centrale Lille, Univ. Artois, FR 2638 - IMEC - Institut Michel-Eugène Chevreul, 59000, Lille, France
| | - Andrei Y Khodakov
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, 59000, Lille, France
| | - Vitaly V Ordomsky
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, 59000, Lille, France
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9
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Wu D, Wang Q, Safonova OV, Peron DV, Zhou W, Yan Z, Marinova M, Khodakov AY, Ordomsky VV. Lignin Compounds to Monoaromatics: Selective Cleavage of C−O Bonds over a Brominated Ruthenium Catalyst. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101325] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Dan Wu
- Eco-Efficient Products and Processes Laboratory (E2P2L) UMI 3464 CNRS-Solvay 201108 Shanghai P. R. China
- Univ. Lille CNRS Centrale Lille ENSCL Univ. Artois UMR 8181 – UCCS – Unité de Catalyse et Chimie du Solide 59000 Lille France
| | - Qiyan Wang
- Eco-Efficient Products and Processes Laboratory (E2P2L) UMI 3464 CNRS-Solvay 201108 Shanghai P. R. China
- Univ. Lille CNRS Centrale Lille ENSCL Univ. Artois UMR 8181 – UCCS – Unité de Catalyse et Chimie du Solide 59000 Lille France
| | | | - Deizi V. Peron
- Univ. Lille CNRS Centrale Lille ENSCL Univ. Artois UMR 8181 – UCCS – Unité de Catalyse et Chimie du Solide 59000 Lille France
| | - Wenjuan Zhou
- Eco-Efficient Products and Processes Laboratory (E2P2L) UMI 3464 CNRS-Solvay 201108 Shanghai P. R. China
| | - Zhen Yan
- Eco-Efficient Products and Processes Laboratory (E2P2L) UMI 3464 CNRS-Solvay 201108 Shanghai P. R. China
| | - Maya Marinova
- Univ. Lille CNRS INRAE Centrale Lille Univ. Artois FR 2638 – IMEC – Institut Michel-Eugène Chevreul 59000 Lille France
| | - Andrei Y. Khodakov
- Univ. Lille CNRS Centrale Lille ENSCL Univ. Artois UMR 8181 – UCCS – Unité de Catalyse et Chimie du Solide 59000 Lille France
| | - Vitaly V. Ordomsky
- Univ. Lille CNRS Centrale Lille ENSCL Univ. Artois UMR 8181 – UCCS – Unité de Catalyse et Chimie du Solide 59000 Lille France
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10
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Wang H, Fiore AM, Fliedel C, Manoury E, Philippot K, Dell'Anna MM, Mastrorilli P, Poli R. Rhodium nanoparticles inside well-defined unimolecular amphiphilic polymeric nanoreactors: synthesis and biphasic hydrogenation catalysis. NANOSCALE ADVANCES 2021; 3:2554-2566. [PMID: 36134168 PMCID: PMC9419193 DOI: 10.1039/d1na00028d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 03/18/2021] [Indexed: 06/16/2023]
Abstract
Rhodium nanoparticles (Rh NPs) embedded in different amphiphilic core-crosslinked micelle (CCM) latexes (RhNP@CCM) have been synthesized by [RhCl(COD)(TPP@CCM)] reduction with H2 (TPP@CCM = core-anchored triphenylphosphine). The reduction rate depends on temperature, on the presence of base (NEt3) and on the P/Rh ratio. For CCMs with outer shells made of neutral P(MAA-co-PEOMA) copolymer chains (RhNP@CCM-N), the core-generated Rh NPs tend to migrate toward the hydrophilic shell and to agglomerate depending on the P/Rh ratio and core TPP density, whereas the MAA protonation state has a negligible effect. Conversely, CCMs with outer shells made of polycationic P(4VPMe+I-) chains (RhNP@CCM-C) maintain core-confined and well dispersed Rh NPs. All RhNP@CCMs were used as catalytic nanoreactors under aqueous biphasic conditions for acetophenone, styrene and 1-octene hydrogenation. Styrene was efficiently hydrogenated by all systems with high selectivity for vinyl reduction. For acetophenone, competition between benzene ring and carbonyl reduction was observed as well as a limited access to the catalytic sites when using CCM-C. Neat 1-octene was also converted, but the activity increased when the substrate was diluted in 1-nonanol, which is a better core-swelling solvent. Whereas the molecular RhI center was more active than the Rh0 NPs in 1-octene hydrogenation, the opposite trend was observed for styrene hydrogenation. Although Rh NP migration and agglomeration occurred for RhNP@CCM-N, even at high P/Rh, the NPs remained core-confined for RhNP@CCM-C, but only when toluene rather than diethyl ether was used for product extraction before recycling.
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Affiliation(s)
- Hui Wang
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT 205 route de Narbonne, BP 44099 F-31077 Toulouse Cedex 4 France
| | - Ambra Maria Fiore
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT 205 route de Narbonne, BP 44099 F-31077 Toulouse Cedex 4 France
- DICATECh, Politecnico di Bari via Orabona, 4 70125 Bari Italy
| | - Christophe Fliedel
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT 205 route de Narbonne, BP 44099 F-31077 Toulouse Cedex 4 France
| | - Eric Manoury
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT 205 route de Narbonne, BP 44099 F-31077 Toulouse Cedex 4 France
| | - Karine Philippot
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT 205 route de Narbonne, BP 44099 F-31077 Toulouse Cedex 4 France
| | | | | | - Rinaldo Poli
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT 205 route de Narbonne, BP 44099 F-31077 Toulouse Cedex 4 France
- Institut Universitaire de France 1 rue Descartes 75231 Paris Cedex 05 France
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11
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Wang H, Vendrame L, Fliedel C, Chen S, Gayet F, D'Agosto F, Lansalot M, Manoury E, Poli R. Triphenylphosphine-Functionalized Core-Cross-Linked Micelles and Nanogels with a Polycationic Outer Shell: Synthesis and Application in Rhodium-Catalyzed Biphasic Hydrogenations. Chemistry 2021; 27:5205-5214. [PMID: 33325110 DOI: 10.1002/chem.202004689] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 12/12/2020] [Indexed: 01/25/2023]
Abstract
Unimolecular amphiphilic nanoreactors with a poly(4-vinyl-N-methylpyridinium iodide) (P4VPMe+ I- ) polycationic outer shell and two different architectures (core-cross-linked micelles, CCM, and nanogels, NG), with narrow size distributions around 130-150 nm in diameter, were synthesized by RAFT polymerization from an R0 -4VPMe+ I- 140 -b-S50 -SC(S)SPr macroRAFT agent by either chain extension with a long (300 monomer units) hydrophobic polystyrene-based block followed by cross-linking with diethylene glycol dimethacrylate (DEGDMA) for the CCM particles, or by simultaneous chain extension and cross-linking for the NG particles. A core-anchored triphenylphosphine (TPP) ligand functionality was introduced by using 4-diphenylphosphinostyrene (DPPS) as a comonomer (5-20 % mol mol-1 ) in the chain extension (for CCM) or chain extension/cross-linking (for NG) step. The products were directly obtained as stable colloidal dispersions in water (latexes). After loading with [RhCl(COD)]2 to yield [RhCl(COD)(TPP@CCM)] or [RhCl(COD)(TPP@NG)], respectively, the polymers were used as polymeric nanoreactors in Rh-catalyzed aqueous biphasic hydrogenation of the model substrates styrene and 1-octene, either neat (for styrene) or in an organic solvent (toluene or 1-nonanol). All hydrogenations were rapid (TOF up to 300 h-1 ) at 25 °C and 20 bar of H2 pressure, the biphasic mixture rapidly decanted at the end of the reaction (<2 min), the Rh loss was negligible (<0.1 ppm in the recovered organic phase), and the catalyst phase could be recycled 10 times without significant loss of catalytic activity.
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Affiliation(s)
- Hui Wang
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France
| | - Lorenzo Vendrame
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France
| | - Christophe Fliedel
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France
| | - Si Chen
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France
| | - Florence Gayet
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France
| | - Franck D'Agosto
- Chemistry, Catalysis, Polymers and Processes (C2P2), CNRS, UMR 5265, Univ Lyon, Université Claude Bernard Lyon 1, CPE Lyon, 43 Bd du 11 Novembre 1918, 69616, Villeurbanne, France
| | - Muriel Lansalot
- Chemistry, Catalysis, Polymers and Processes (C2P2), CNRS, UMR 5265, Univ Lyon, Université Claude Bernard Lyon 1, CPE Lyon, 43 Bd du 11 Novembre 1918, 69616, Villeurbanne, France
| | - Eric Manoury
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France
| | - Rinaldo Poli
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205 route de Narbonne, BP 44099, 31077, Toulouse Cedex 4, France.,Institut Universitaire de France, 1 rue Descartes, 75231, Paris Cedex 05, France
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12
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Li K, An H, Yan P, Yang C, Xiao T, Wang J, Zhou S. Hydrogenation of Toluene to Methyl Cyclohexane over PtRh Bimetallic Nanoparticle-Encaged Hollow Mesoporous Silica Catalytic Nanoreactors. ACS OMEGA 2021; 6:5846-5855. [PMID: 33681623 PMCID: PMC7931421 DOI: 10.1021/acsomega.0c06268] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 02/03/2021] [Indexed: 06/12/2023]
Abstract
PtRh bimetallic nanoparticle (NP)-encaged hollow mesoporous silica nanoreactors (PtRh@HMSNs) are prepared by employing metal-ion-containing charge-driven polymer micelles as templates. These nanoreactors feature ∼1-2 nm PtRh NPs in ∼11 nm hollow cavities of HMSNs. Among various Pt x Rh y @HMSNs, Pt0.77Rh1@HMSNs show the best catalytic performance for toluene hydrogenation. Under 30 °C, atmospheric H2 pressure, and a toluene/(Pt+Rh) molar ratio of 200/1, Pt0.77Rh1@HMSNs reach 100.0% of methyl cyclohexane yield and demonstrate a much better catalytic performance than monometallic Pt@HMSNs and Rh@HMSNs and their physical mixtures. Moreover, Pt0.77Rh1@HMSNs exhibit a good catalytic stability during recycling experiments. The enhanced performance of Pt0.77Rh1@HMSNs is ascribed to the interaction between Pt and Rh, the beneficial effect of the relatively large mesoporous channels for mass transfer, as well as the confinement effect of functional NPs inside hollow cavities.
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Affiliation(s)
| | | | - Peijian Yan
- Shanghai Key Laboratory of
Multiphase Materials Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Caoping Yang
- Shanghai Key Laboratory of
Multiphase Materials Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Tao Xiao
- Shanghai Key Laboratory of
Multiphase Materials Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Junyou Wang
- Shanghai Key Laboratory of
Multiphase Materials Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Shenghu Zhou
- Shanghai Key Laboratory of
Multiphase Materials Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
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13
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Uygun MT, Amudi K, Turaçlı İD, Menges N. A new synthetic approach for pyrazolo[1,5-a]pyrazine-4(5H)-one derivatives and their antiproliferative effects on lung adenocarcinoma cell line. Mol Divers 2021; 26:113-124. [PMID: 33387184 DOI: 10.1007/s11030-020-10161-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Accepted: 11/20/2020] [Indexed: 01/26/2023]
Abstract
Starting from the 3,5-dimethyl pyrazole ring and acetophenone derivatives, five different N-propargylated C-3 substituted pyrazoles were obtained. These derivatives were reacted with different amine derivatives using Cs2CO3 in methanol and 11 different pyrazolo [1,5-a] pyrazine-4(5H)-one derivatives were obtained, which are not found in the literature. The cytotoxic effects of these derivatives in the A549 cell line were investigated. The 160 µM concentration of two derivatives was found to increase cell death rate to 50%, and two derivatives increased cell death rate by up to 40%. The structure-activity relationship (SAR) study revealed an amide group with a long alkyl chain and benzene ring with a p-CF3 group could be important for efficiency. With theoretical ADMET studies of pyrazolopyrazine derivatives, pharmacokinetic phases were predicted to be suitable.
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Affiliation(s)
- Meltem Tan Uygun
- Pharmaceutical Chemistry Section, Van Yuzuncu Yil University, 65080, Van, Turkey.,SAFF Chemical Reagent RδD Laboratory, VAN-TEKNOKENT, 65080, Van, Turkey
| | - Karina Amudi
- Pharmaceutical Chemistry Section, Van Yuzuncu Yil University, 65080, Van, Turkey.,SAFF Chemical Reagent RδD Laboratory, VAN-TEKNOKENT, 65080, Van, Turkey
| | - İrem Doğan Turaçlı
- Department of Medical Biology, Faculty of Medicine, Ufuk University, 06520, Ankara, Turkey
| | - Nurettin Menges
- Pharmaceutical Chemistry Section, Van Yuzuncu Yil University, 65080, Van, Turkey. .,SAFF Chemical Reagent RδD Laboratory, VAN-TEKNOKENT, 65080, Van, Turkey.
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14
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Chakrabortty S, Rockstroh N, Bartling S, Lund H, Müller BH, Kamer PCJ, de Vries JG. The solvent determines the product in the hydrogenation of aromatic ketones using unligated RhCl 3 as catalyst precursor. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01504d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
RhCl3-catalysed hydrogenation/hydrodeoxygenation of aromatic ketones produced alkylcyclohexanes in TFE and cyclohexyl alkyl alcohols in water at moderate temperatures. Rh-nanoparticles were found to be the true catalysts.
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Affiliation(s)
| | - Nils Rockstroh
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Stephan Bartling
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Henrik Lund
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Bernd H. Müller
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Paul C. J. Kamer
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Johannes G. de Vries
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Straße 29a, 18059 Rostock, Germany
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15
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Schiwek CH, Jandl C, Bach T. Diastereoselective Rhodium-Catalyzed Hydrogenation of 2-Oxindoles and 3,4-Dihydroquinolones. Org Lett 2020; 22:9468-9472. [PMID: 33200605 DOI: 10.1021/acs.orglett.0c03427] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The benzene ring of indolin-2-ones (2-oxindoles) and 3,4-dihydroquinol-2-ones was converted to a saturated cyclohexane ring by hydrogenation in the presence of the rhodium complex Cy(CAAC)Rh(cod)Cl. The stereoselectivity of the process was found to be high with respect to both external substituent R1 within the saturated part of the heterocyclic ring and substituent X on the benzene ring. Twenty-one hexahydroindolin-2(3H)-ones (70-99% yield, dr = 83/17 to >99/1) and twelve octahydro-2(1H)-quinolinones (87-96% yield, dr = 64/36 to >99/1) were obtained with the major diastereoisomer exhibiting the hydrogen atoms in an all-cis arrangement. The high tolerance toward functional groups and the compatibility with existing stereogenic centers are key features of the hydrogenation protocol presented here.
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Affiliation(s)
- Christian H Schiwek
- Department Chemie and Catalysis Research Center (CRC), Technische Universität München, 85747 Garching, Germany
| | - Christian Jandl
- Department Chemie and Catalysis Research Center (CRC), Technische Universität München, 85747 Garching, Germany
| | - Thorsten Bach
- Department Chemie and Catalysis Research Center (CRC), Technische Universität München, 85747 Garching, Germany
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16
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Wollenburg M, Heusler A, Bergander K, Glorius F. trans-Selective and Switchable Arene Hydrogenation of Phenol Derivatives. ACS Catal 2020; 10:11365-11370. [PMID: 33133752 PMCID: PMC7594304 DOI: 10.1021/acscatal.0c03423] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 09/09/2020] [Indexed: 01/28/2023]
Abstract
![]()
A trans-selective arene hydrogenation of abundant
phenol derivatives catalyzed by a commercially available heterogeneous
palladium catalyst is reported. The described method tolerates a variety
of functional groups and provides access to a broad scope of trans-configurated cyclohexanols as potential building blocks
for life sciences and beyond in a one-step procedure. The transformation
is strategically important because arene hydrogenation preferentially
delivers the opposite cis-isomers. The diastereoselectivity
of the phenol hydrogenation can be switched to the cis-isomers by employing rhodium-based catalysts. Moreover, a protocol
for the chemoselective hydrogenation of phenols to cyclohexanones
was developed.
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Affiliation(s)
- Marco Wollenburg
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Arne Heusler
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Klaus Bergander
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
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17
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Sulfonated Phosphine Ligands in the Ruthenium Catalyzed Biphasic Hydrogenation of Unsaturated Hydrocarbons. Catal Letters 2020. [DOI: 10.1007/s10562-020-03148-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Abstract
The hydrogenation of monocyclic aromatic hydrocarbons by ruthenium catalysts has been investigated in the presence of sulfonated monophosphine ligands with different stereoelectronic properties under biphasic conditions. The effects of (i) the number of sulfonate groups, (ii) the steric demand of the ligand and (iii) the σ-donor ability of the phosphorus atom have been investigated in the catalytic reactions. The TEM analysis of the catalytically active systems revealed that in situ formed soluble ruthenium nanoparticles (RuNPs) are responsible for the catalytic turnover. The Ru/sulfonated phosphine system with the properly tuned ligand exhibited high activity (8800 h−1) and selectivity in the hydrogenation of benzene to cyclohexane. Furthermore, the aqueous phase containing RuNPs could be recycled four times without a considerable loss of activity.
Graphic Abstract
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18
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Rebuffi L, Mukherjee B, Siboni S, Young AP, Williams BP, Tsung CK, Scardi P. Surface softening in palladium nanoparticles: effects of a capping agent on vibrational properties. NANOSCALE 2020; 12:5876-5887. [PMID: 32104854 DOI: 10.1039/d0nr00182a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The presence of a capping agent (CTAB) on Pd nanoparticles produces a strong static disorder in the surface region. This results in a surface softening, which contributes to an overall increase in the Debye-Waller coefficient measured by X-ray powder diffraction. Molecular dynamics and density functional theory simulations show that the adsorption-induced surface disorder is strong enough to overcome the effects of nanoparticle size and shape.
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Affiliation(s)
- Luca Rebuffi
- Advanced Photon Source, Argonne National Laboratory, 9700 S. Cass Avenue, Lemont, IL 60439, USA
| | - Binayak Mukherjee
- Department of Civil, Environmental and Mechanical Engineering, University of Trento, Via Mesiano 77, 38123 Trento, Italy.
| | - Stefano Siboni
- Department of Civil, Environmental and Mechanical Engineering, University of Trento, Via Mesiano 77, 38123 Trento, Italy.
| | - Allison P Young
- Boston College, Merkert Chemistry Center, Department of Chemistry, 2609 Beacon St., Chestnut Hill, Massachusetts 02467, USA
| | - Benjamin P Williams
- Boston College, Merkert Chemistry Center, Department of Chemistry, 2609 Beacon St., Chestnut Hill, Massachusetts 02467, USA
| | - Chia-Kuang Tsung
- Boston College, Merkert Chemistry Center, Department of Chemistry, 2609 Beacon St., Chestnut Hill, Massachusetts 02467, USA
| | - Paolo Scardi
- Department of Civil, Environmental and Mechanical Engineering, University of Trento, Via Mesiano 77, 38123 Trento, Italy.
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19
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Gao S, Wang Z, Ma L, Liu Y, Gao J, Jiang Y. Mesoporous Core–Shell Nanostructures Bridging Metal and Biocatalyst for Highly Efficient Cascade Reactions. ACS Catal 2019. [DOI: 10.1021/acscatal.9b04877] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Shiqi Gao
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Zihan Wang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Li Ma
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Yunting Liu
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Jing Gao
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Yanjun Jiang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
- National Local Joint Engineering Laboratory for Energy Conservation of Chemical Process Integration and Resources Utilization, Hebei University of Technology, Tianjin 300130, China
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20
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Mahdaly M, Zhu JS, Nguyen V, Shon YS. Colloidal Palladium Nanoparticles for Selective Hydrogenation of Styrene Derivatives with Reactive Functional Groups. ACS OMEGA 2019; 4:20819-20828. [PMID: 31858068 PMCID: PMC6906945 DOI: 10.1021/acsomega.9b03335] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 11/13/2019] [Indexed: 05/20/2023]
Abstract
This article presents the catalysis investigation of octanethiolate-capped palladium nanoparticles (C8 PdNP) and phenylethanethiolate-capped palladium nanoparticles (PhC2 PdNP) for chemoselective catalytic hydrogenation reactions of styrene derivatives in the presence of other reducible functionalities. The results show that the C8 PdNP is highly active under mild reaction conditions (room temperature and atmospheric pressure) and selective for hydrogenating monosubstituted alkene groups without reducing other reactive functional groups such as nitro, halo, carbonyls, and so forth. In comparison, the noncovalent interactions between surface phenyl ligands and aromatic substrates are found to hinder the hydrogenation activity of PhC2 PdNP.
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Affiliation(s)
- Mohammed
A. Mahdaly
- Department
of Chemistry and Biochemistry and Keck Energy Materials Program, California State University Long Beach, 1250 Bellflower Blvd., Long Beach, California 90840, United States
| | - Jie S. Zhu
- Department
of Chemistry and Biochemistry and Keck Energy Materials Program, California State University Long Beach, 1250 Bellflower Blvd., Long Beach, California 90840, United States
| | - Vincent Nguyen
- Department
of Chemistry and Biochemistry and Keck Energy Materials Program, California State University Long Beach, 1250 Bellflower Blvd., Long Beach, California 90840, United States
| | - Young-Seok Shon
- Department
of Chemistry and Biochemistry and Keck Energy Materials Program, California State University Long Beach, 1250 Bellflower Blvd., Long Beach, California 90840, United States
- E-mail: . Phone: 562-985-4466. Fax: 562-985-8547
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21
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Wiesenfeldt MP, Nairoukh Z, Dalton T, Glorius F. Selective Arene Hydrogenation for Direct Access to Saturated Carbo- and Heterocycles. Angew Chem Int Ed Engl 2019; 58:10460-10476. [PMID: 30701650 PMCID: PMC6697539 DOI: 10.1002/anie.201814471] [Citation(s) in RCA: 160] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Indexed: 01/08/2023]
Abstract
Arene hydrogenation provides direct access to saturated carbo- and heterocycles and thus its strategic application may be used to shorten synthetic routes. This powerful transformation is widely applied in industry and is expected to facilitate major breakthroughs in the applied sciences. The ability to overcome aromaticity while controlling diastereo-, enantio-, and chemoselectivity is central to the use of hydrogenation in the preparation of complex molecules. In general, the hydrogenation of multisubstituted arenes yields predominantly the cis isomer. Enantiocontrol is imparted by chiral auxiliaries, Brønsted acids, or transition-metal catalysts. Recent studies have demonstrated that highly chemoselective transformations are possible. Such methods and the underlying strategies are reviewed herein, with an emphasis on synthetically useful examples that employ readily available catalysts.
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Affiliation(s)
- Mario P. Wiesenfeldt
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstrasse 4048149MünsterGermany
| | - Zackaria Nairoukh
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstrasse 4048149MünsterGermany
| | - Toryn Dalton
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstrasse 4048149MünsterGermany
| | - Frank Glorius
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstrasse 4048149MünsterGermany
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22
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Attia S, Spadafora EJ, Hartmann J, Freund HJ, Schauermann S. Molecular beam/infrared reflection-absorption spectroscopy apparatus for probing heterogeneously catalyzed reactions on functionalized and nanostructured model surfaces. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2019; 90:053903. [PMID: 31153295 DOI: 10.1063/1.5093487] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 05/06/2019] [Indexed: 06/09/2023]
Abstract
A new custom-designed ultrahigh vacuum (UHV) apparatus combining molecular beam techniques and in situ surface spectroscopy for reactivity measurements on complex nanostructured model surfaces is described. It has been specifically designed to study the mechanisms, kinetics, and dynamics of heterogeneously catalyzed reactions over well-defined model catalysts consisting of metal nanoparticles supported on thin oxide films epitaxially grown on metal single crystals. The reactivity studies can be performed in a broad pressure range starting from UHV up to the ambient pressure conditions. The UHV system includes (i) a preparation chamber providing the experimental techniques required for the preparation and structural characterization of single-crystal based model catalysts such as oxide supported metal particles or ordered oxide surfaces and (ii) the reaction chamber containing three molecular beams-two effusive and one supersonic, which are crossed at the same point on the sample surface, infrared reflection-absorption spectroscopy for the detection of surface-adsorbed species, and quadrupole mass spectrometry for gas phase analysis. The supersonic beam is generated in a pulsed supersonic expansion and can be modulated via a variable duty-cycle chopper. The effusive beams are produced by newly developed compact differentially pumped sources based on multichannel glass capillary arrays. Both effusive sources can be modulated by a vacuum-motor driven chopper and are capable of providing high flux and high purity beams. The apparatus contains an ambient pressure cell, which is connected to the preparation chamber via an in situ sample transfer system and provides an experimental possibility to study the reactivity of well-defined nanostructured model catalysts in a broad range of pressure conditions-up to ambient pressure-with the gas phase analysis based on gas chromatography. Additionally, a dedicated deposition chamber is connected to the preparation chamber, which is employed for the in situ functionalization of model surfaces with large organic molecules serving as promoters or modifiers of chemical reactions. We present a general overview of the apparatus as well as a description of the individual components and their interplay. The results of the test measurements involving the most important components are presented and discussed.
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Affiliation(s)
- Smadar Attia
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Evan J Spadafora
- Institut für Physikalische Chemie, Christian-Albrechts-Universität zu Kiel, Max-Eyth-Straße 2, 24118 Kiel, Germany
| | - Jens Hartmann
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Hans-Joachim Freund
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Swetlana Schauermann
- Institut für Physikalische Chemie, Christian-Albrechts-Universität zu Kiel, Max-Eyth-Straße 2, 24118 Kiel, Germany
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23
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Wiesenfeldt MP, Nairoukh Z, Dalton T, Glorius F. Die selektive Arenhydrierung bietet einen direkten Zugang zu gesättigten Carbo‐ und Heterocyclen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814471] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Mario P. Wiesenfeldt
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Zackaria Nairoukh
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Toryn Dalton
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Frank Glorius
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
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24
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Doherty S, Knight JG, Backhouse T, Summers RJ, Abood E, Simpson W, Paget W, Bourne RA, Chamberlain TW, Stones R, Lovelock KRJ, Seymour JM, Isaacs MA, Hardacre C, Daly H, Rees NH. Highly Selective and Solvent-Dependent Reduction of Nitrobenzene to N-Phenylhydroxylamine, Azoxybenzene, and Aniline Catalyzed by Phosphino-Modified Polymer Immobilized Ionic Liquid-Stabilized AuNPs. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00347] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Simon Doherty
- NUCAT, School of Chemistry, Newcastle University, Bedson Building, Newcastle upon Tyne NE1 7RU, U.K
| | - Julian G. Knight
- NUCAT, School of Chemistry, Newcastle University, Bedson Building, Newcastle upon Tyne NE1 7RU, U.K
| | - Tom Backhouse
- NUCAT, School of Chemistry, Newcastle University, Bedson Building, Newcastle upon Tyne NE1 7RU, U.K
| | - Ryan J. Summers
- NUCAT, School of Chemistry, Newcastle University, Bedson Building, Newcastle upon Tyne NE1 7RU, U.K
| | - Einas Abood
- NUCAT, School of Chemistry, Newcastle University, Bedson Building, Newcastle upon Tyne NE1 7RU, U.K
| | - William Simpson
- NUCAT, School of Chemistry, Newcastle University, Bedson Building, Newcastle upon Tyne NE1 7RU, U.K
| | - William Paget
- NUCAT, School of Chemistry, Newcastle University, Bedson Building, Newcastle upon Tyne NE1 7RU, U.K
| | - Richard A. Bourne
- Institute of Process Research & Development, School of Chemistry and School of Chemical and Process Engineering, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Thomas W. Chamberlain
- Institute of Process Research & Development, School of Chemistry and School of Chemical and Process Engineering, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Rebecca Stones
- Institute of Process Research & Development, School of Chemistry and School of Chemical and Process Engineering, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Kevin R. J. Lovelock
- School of Chemistry, Food and Pharmacy, University of Reading, Reading RG6 6AT, U.K
| | - Jake M. Seymour
- School of Chemistry, Food and Pharmacy, University of Reading, Reading RG6 6AT, U.K
| | - Mark A. Isaacs
- EPSRC National Facility for XPS (HarwellXPS),
Research Complex at Harwell (RCaH), Rutherford Appleton
Laboratory, Room G.63, Harwell, Didcot, Oxfordshire OX11 0FA, U.K
| | - Christopher Hardacre
- School of Chemical Engineering and Analytical Science, The University of Manchester, The Mill, Sackville Street Campus, Manchester M13 9PL, U.K
| | - Helen Daly
- School of Chemical Engineering and Analytical Science, The University of Manchester, The Mill, Sackville Street Campus, Manchester M13 9PL, U.K
| | - Nicholas H. Rees
- Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QR, U.K
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25
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Serrano‐Maldonado A, Martin E, Guerrero‐Ríos I. Pyridine‐Stabilized Rhodium Nanoparticles in Ionic Liquids as Selective Hydrogenation and Transfer Hydrogenation Catalysts. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900223] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Alejandro Serrano‐Maldonado
- Departamento de Química Inorgánica Facultad de Química Universidad Nacional Autónoma de México Av. Universidad 3000 04510 CDMX Mexico
| | - Erika Martin
- Departamento de Química Inorgánica Facultad de Química Universidad Nacional Autónoma de México Av. Universidad 3000 04510 CDMX Mexico
| | - Itzel Guerrero‐Ríos
- Departamento de Química Inorgánica Facultad de Química Universidad Nacional Autónoma de México Av. Universidad 3000 04510 CDMX Mexico
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26
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Miyamura H, Suzuki A, Yasukawa T, Kobayashi S. Polysilane-Immobilized Rh-Pt Bimetallic Nanoparticles as Powerful Arene Hydrogenation Catalysts: Synthesis, Reactions under Batch and Flow Conditions and Reaction Mechanism. J Am Chem Soc 2018; 140:11325-11334. [PMID: 30080963 DOI: 10.1021/jacs.8b06015] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Hydrogenation of arenes is an important reaction not only for hydrogen storage and transport but also for the synthesis of functional molecules such as pharmaceuticals and biologically active compounds. Here, we describe the development of heterogeneous Rh-Pt bimetallic nanoparticle catalysts for the hydrogenation of arenes with inexpensive polysilane as support. The catalysts could be used in both batch and continuous-flow systems with high performance under mild conditions and showed wide substrate generality. In the continuous-flow system, the product could be obtained by simply passing the substrate and 1 atm H2 through a column packed with the catalyst. Remarkably, much higher catalytic performance was observed in the flow system than in the batch system, and extremely strong durability under continuous-flow conditions was demonstrated (>50 days continuous run; turnover number >3.4 × 105). Furthermore, details of the reaction mechanisms and the origin of different kinetics in batch and flow were studied, and the obtained knowledge was applied to develop completely selective arene hydrogenation of compounds containing two aromatic rings toward the synthesis of an active pharmaceutical ingredient.
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Affiliation(s)
- Hiroyuki Miyamura
- Department of Chemistry, School of Science , The University of Tokyo , Hongo, Bunkyo-ku, Tokyo 113-0033 , Japan
| | - Aya Suzuki
- Department of Chemistry, School of Science , The University of Tokyo , Hongo, Bunkyo-ku, Tokyo 113-0033 , Japan
| | - Tomohiro Yasukawa
- Department of Chemistry, School of Science , The University of Tokyo , Hongo, Bunkyo-ku, Tokyo 113-0033 , Japan
| | - Shu Kobayashi
- Department of Chemistry, School of Science , The University of Tokyo , Hongo, Bunkyo-ku, Tokyo 113-0033 , Japan
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27
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Zhang H, Han A, Okumura K, Zhong L, Li S, Jaenicke S, Chuah GK. Selective hydrogenation of phenol to cyclohexanone by SiO2-supported rhodium nanoparticles under mild conditions. J Catal 2018. [DOI: 10.1016/j.jcat.2018.06.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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28
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29
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Serrano-Maldonado A, Rozenel SS, Jimenez-Santiago JL, Guerrero-Ríos I, Martin E. Rh nanoparticles from thiolate dimers: selective and reusable hydrogenation catalysts in ionic liquids. Catal Sci Technol 2018. [DOI: 10.1039/c8cy00227d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Thiolate-capped RhNPs in imidazolium-based ionic liquids were synthesized from [Rh(μ-SR)(COD)]2 dimmers under H2 pressure without external addition of ligand stabilizers, preserving thiolate integrity on the nanoparticle surface. This nanoparticulated systems showed a remarkable selectivity that led to their application in the one pot reductive N-alkylation to produce amines.
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Affiliation(s)
- A. Serrano-Maldonado
- Depto. de Química Inorgánica
- Facultad de Química
- Universidad Nacional Autónoma de México
- 04510 CDMX
- Mexico
| | - S. S. Rozenel
- Depto. de Química Inorgánica
- Facultad de Química
- Universidad Nacional Autónoma de México
- 04510 CDMX
- Mexico
| | - J. L. Jimenez-Santiago
- Depto. de Química Inorgánica
- Facultad de Química
- Universidad Nacional Autónoma de México
- 04510 CDMX
- Mexico
| | - I. Guerrero-Ríos
- Depto. de Química Inorgánica
- Facultad de Química
- Universidad Nacional Autónoma de México
- 04510 CDMX
- Mexico
| | - E. Martin
- Depto. de Química Inorgánica
- Facultad de Química
- Universidad Nacional Autónoma de México
- 04510 CDMX
- Mexico
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30
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Ghosh S, Debnath S, Das UK, Maiti DK. Fabrication and Diverse Ring-Expansion Nanocatalysis of Functionalized Pt-Nanoparticles to a General Synthesis of Pyrrolines: A 3D-Mid-IR Study. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b02441] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Subhadeep Ghosh
- Department
of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, India
| | - Sudipto Debnath
- Department
of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, India
| | - Uttam K. Das
- Department
of Chemistry, School of Physical and Material Sciences, Mahatma Gandhi Central University, East Champaran, Motihari, Bihar 845401, India
| | - Dilip K. Maiti
- Department
of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata 700009, India
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31
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Catalytic Hydrogenation of Arenes in Water Over In Situ Generated Ruthenium Nanoparticles Immobilized on Carbon. ChemCatChem 2017. [DOI: 10.1002/cctc.201700056] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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32
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Jayakumar S, Modak A, Guo M, Li H, Hu X, Yang Q. Ultrasmall Platinum Stabilized on Triphenylphosphine-Modified Silica for Chemoselective Hydrogenation. Chemistry 2017; 23:7791-7797. [DOI: 10.1002/chem.201700980] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Sanjeevi Jayakumar
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457-Zhongshan Road Dalian 116023 P.R. China
- International College; University of Chinese Academy of Sciences; Beijing 100049 P.R. China
| | - Arindam Modak
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457-Zhongshan Road Dalian 116023 P.R. China
| | - Miao Guo
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457-Zhongshan Road Dalian 116023 P.R. China
- University of Chinese Academy of Sciences; Beijing 100049 P.R. China
| | - He Li
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457-Zhongshan Road Dalian 116023 P.R. China
| | - Xiangping Hu
- Laboratory of Fine Chemicals; Dalian Institute of Chemical Physics; P.R. China
| | - Qihua Yang
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457-Zhongshan Road Dalian 116023 P.R. China
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33
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Amiens C, Ciuculescu-Pradines D, Philippot K. Controlled metal nanostructures: Fertile ground for coordination chemists. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.07.013] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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34
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Ibrahim M, Garcia MAS, Vono LLR, Guerrero M, Lecante P, Rossi LM, Philippot K. Polymer versus phosphine stabilized Rh nanoparticles as components of supported catalysts: implication in the hydrogenation of cyclohexene model molecule. Dalton Trans 2016; 45:17782-17791. [DOI: 10.1039/c6dt03104h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The influence of stabilizers on the catalytic performance of small rhodium nanoparticles was studied through a model hydrogenation reaction.
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Affiliation(s)
- M. Ibrahim
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077-Toulouse Cedex 4
- France
- Université de Toulouse
| | - M. A. S. Garcia
- Department of Fundamental Chemistry
- Institute of Chemistry
- University of São Paulo
- São Paulo
- Brazil
| | - L. L. R. Vono
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077-Toulouse Cedex 4
- France
- Université de Toulouse
| | - M. Guerrero
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077-Toulouse Cedex 4
- France
- Université de Toulouse
| | - P. Lecante
- CNRS UPR 8011
- CEMES (Centre d'Elaboration des Matériaux et d'Etudes Structurales)
- F-31055 Toulouse
- France
| | - L. M. Rossi
- Department of Fundamental Chemistry
- Institute of Chemistry
- University of São Paulo
- São Paulo
- Brazil
| | - K. Philippot
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- F-31077-Toulouse Cedex 4
- France
- Université de Toulouse
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35
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Wang Y, De S, Yan N. Rational control of nano-scale metal-catalysts for biomass conversion. Chem Commun (Camb) 2016; 52:6210-24. [DOI: 10.1039/c6cc00336b] [Citation(s) in RCA: 165] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This feature article discusses the rational control of nano-scale metal catalysts for catalytic biomass transformation.
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Affiliation(s)
- Yunzhu Wang
- Department of Chemical and Biomolecular Engineering
- National University of Singapore
- Singapore
| | - Sudipta De
- Department of Chemical and Biomolecular Engineering
- National University of Singapore
- Singapore
| | - Ning Yan
- Department of Chemical and Biomolecular Engineering
- National University of Singapore
- Singapore
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36
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McManus I, Daly H, Thompson J, Connor E, Hardacre C, Wilkinson S, Sedaie Bonab N, ten Dam J, Simmons M, Stitt E, D’Agostino C, McGregor J, Gladden L, Delgado J. Effect of solvent on the hydrogenation of 4-phenyl-2-butanone over Pt based catalysts. J Catal 2015. [DOI: 10.1016/j.jcat.2015.06.008] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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37
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Wei Y, Rao B, Cong X, Zeng X. Highly Selective Hydrogenation of Aromatic Ketones and Phenols Enabled by Cyclic (Amino)(alkyl)carbene Rhodium Complexes. J Am Chem Soc 2015; 137:9250-3. [DOI: 10.1021/jacs.5b05868] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Yu Wei
- Center
for Organic Chemistry, Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an 710054, China
| | - Bin Rao
- Center
for Organic Chemistry, Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an 710054, China
| | - Xuefeng Cong
- Center
for Organic Chemistry, Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an 710054, China
| | - Xiaoming Zeng
- Center
for Organic Chemistry, Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an 710054, China
- State
Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
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38
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Bulut S, Fei Z, Siankevich S, Zhang J, Yan N, Dyson PJ. Aqueous-phase hydrogenation of alkenes and arenes: The growing role of nanoscale catalysts. Catal Today 2015. [DOI: 10.1016/j.cattod.2014.09.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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39
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Stability of self-assembled monolayer coated Pt/Al2O3 catalysts for liquid phase hydrogenation. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcata.2014.10.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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40
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Castelbou JL, Blondeau P, Claver C, Godard C. Surface characterisation of phosphine and phosphite stabilised Rh nanoparticles: a model study. RSC Adv 2015. [DOI: 10.1039/c5ra21835g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The surface characterisation of Rh nanoparticles stabilized by triphenylphosphine and triphenylphosphite shows differences that were correlated with distinct selectivities in catalytic styrene hydrogenation.
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Affiliation(s)
| | - Pascal Blondeau
- Departament de Química Analitica i Orgànica
- Universitat Rovira I Virgili
- Tarragona
- Spain
| | - Carmen Claver
- Departament de Química Física I Inorgànica
- Universitat Rovira I Virgili
- Tarragona
- Spain
| | - Cyril Godard
- Departament de Química Física I Inorgànica
- Universitat Rovira I Virgili
- Tarragona
- Spain
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41
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Bresó-Femenia E, Chaudret B, Castillón S. Selective catalytic hydrogenation of polycyclic aromatic hydrocarbons promoted by ruthenium nanoparticles. Catal Sci Technol 2015. [DOI: 10.1039/c4cy01758g] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Naphthalene, anthracene, triphenylene and pyrene were partially hydrogenated with selectivities between 80% and 100% under mild conditions using ruthenium NPs.
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Affiliation(s)
- Emma Bresó-Femenia
- Laboratoire de Physique et Chimie des Nano-Objets
- LPCNO
- UMR5215
- CNRS- INSA-UPS
- Université de Toulouse
| | - Bruno Chaudret
- Laboratoire de Physique et Chimie des Nano-Objets
- LPCNO
- UMR5215
- CNRS- INSA-UPS
- Université de Toulouse
| | - Sergio Castillón
- Departament de Química Analítica i Química Orgànica
- Universitat Rovira i Virgili
- C/ Marcellí Domingo s/n
- 43007 Tarragona
- Spain
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42
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Bresó-Femenia E, Godard C, Claver C, Chaudret B, Castillón S. Selective catalytic deuteration of phosphorus ligands using ruthenium nanoparticles: a new approach to gain information on ligand coordination. Chem Commun (Camb) 2015; 51:16342-5. [DOI: 10.1039/c5cc06984j] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Selective deuteration of phenyl rings in phenyl-alkyl phosphines, including diphosphines, was achieved using Ru/PVP nanoparticles and D2, which enables the comprehension of how different phosphorus ligands coordinate to the nanoparticle surface.
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Affiliation(s)
- Emma Bresó-Femenia
- Departament de Química Analítica i Orgànica
- Universitat Rovira I Virgili
- 43007 Tarragona
- Spain
- Laboratoire de Physique et Chimie des Nano Objets
| | - Cyril Godard
- Departament de Química Física i Inorgànica
- Universitat Rovira i Virgili
- 43007 Tarragona
- Spain
| | - Carmen Claver
- Departament de Química Física i Inorgànica
- Universitat Rovira i Virgili
- 43007 Tarragona
- Spain
- Centre de Tecnologia Química de Catalunya (CTQC)
| | - Bruno Chaudret
- Laboratoire de Physique et Chimie des Nano Objets
- LPCNO
- UMR 5215 INSA-UPS-CNRS
- Université de Toulouse
- Institut National des Sciences Appliquées
| | - Sergio Castillón
- Departament de Química Analítica i Orgànica
- Universitat Rovira I Virgili
- 43007 Tarragona
- Spain
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43
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Llop Castelbou J, Bresó-Femenia E, Blondeau P, Chaudret B, Castillón S, Claver C, Godard C. Tuning the Selectivity in the Hydrogenation of Aromatic Ketones Catalyzed by Similar Ruthenium and Rhodium Nanoparticles. ChemCatChem 2014. [DOI: 10.1002/cctc.201402524] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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44
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Wen X, Zhao Z, Cao Y, Dong H, Liu C, Chu H, Bai G. Selective hydrogenation of ethyl benzoate over Ni–B amorphous alloys supported on γ-Al2O3. RESEARCH ON CHEMICAL INTERMEDIATES 2014. [DOI: 10.1007/s11164-014-1744-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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45
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Zhu H, Zhang M, Cai S, Cai Y, Wang P, Bao S, Zou M, Du M. Insitu growth of Rh nanoparticles with controlled sizes and dispersions on the cross-linked PVA–PEI nanofibers and their electrocatalytic properties towards H2O2. RSC Adv 2014. [DOI: 10.1039/c3ra44834g] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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46
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Abstract
The selective hydrogenation of phenol and related derivatives to the corresponding cycloketones requires rationally designed catalysts, which have attracted significant attention.
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Affiliation(s)
- Jiawei Zhong
- CAS Key Laboratory of Renewable Energy
- Guangzhou Institute of Energy Conversion
- Chinese Academy of Sciences
- Guangzhou 510640, PR China
- University of Chinese Academy of Sciences
| | - Jinzhu Chen
- CAS Key Laboratory of Renewable Energy
- Guangzhou Institute of Energy Conversion
- Chinese Academy of Sciences
- Guangzhou 510640, PR China
| | - Limin Chen
- College of Environment and Energy
- South China University of Technology
- Guangzhou 510006, PR China
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47
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Bai G, Zhao Z, Dong H, Niu L, Wang Y, Chen Q. A NiPdB-PEG(800) Amorphous Alloy Catalyst for the Chemoselective Hydrogenation of Electron-Deficient Aromatic Substrates. ChemCatChem 2013. [DOI: 10.1002/cctc.201300865] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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48
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Kahsar KR, Schwartz DK, Medlin JW. Control of metal catalyst selectivity through specific noncovalent molecular interactions. J Am Chem Soc 2013; 136:520-6. [PMID: 24320969 DOI: 10.1021/ja411973p] [Citation(s) in RCA: 180] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The specificity of chemical reactions conducted over solid catalysts can potentially be improved by utilizing noncovalent interactions to direct reactant binding geometry. Here we apply thiolate self-assembled monolayers (SAMs) with an appropriate structure to Pt/Al2O3 catalysts to selectively orient the reactant molecule cinnamaldehyde in a configuration associated with hydrogenation to the desired product cinnamyl alcohol. While nonspecific effects on the surface active site were shown to generally enhance selectivity, specific aromatic stacking interactions between the phenyl ring of cinnamaldehyde and phenylated SAMs allowed tuning of reaction selectivity without compromising the rate of desired product formation. Infrared spectroscopy showed that increased selectivity was a result of favorable orientation of the reactant on the catalyst surface. In contrast, hydrogenation of an unsaturated aldehyde without a phenyl ring showed a nontunable improvement in selectivity, indicating that thiol SAMs can improve reaction selectivity through a combination of nonspecific surface effects and ligand-specific near-surface effects.
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Affiliation(s)
- Karl R Kahsar
- Department of Chemical and Biological Engineering, University of Colorado Boulder , Boulder, Colorado 80309-0596, United States
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49
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Kahsar KR, Schwartz DK, Medlin JW. Selective Hydrogenation of Polyunsaturated Fatty Acids Using Alkanethiol Self-Assembled Monolayer-Coated Pd/Al2O3 Catalysts. ACS Catal 2013. [DOI: 10.1021/cs4004563] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Karl R. Kahsar
- Department of Chemical and Biological
Engineering, University of Colorado Boulder, Boulder, Colorado 80309-0596,
United States
| | - Daniel K. Schwartz
- Department of Chemical and Biological
Engineering, University of Colorado Boulder, Boulder, Colorado 80309-0596,
United States
| | - J. Will Medlin
- Department of Chemical and Biological
Engineering, University of Colorado Boulder, Boulder, Colorado 80309-0596,
United States
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50
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Yan N, Yuan Y, Dyson PJ. Nanometallic chemistry: deciphering nanoparticle catalysis from the perspective of organometallic chemistry and homogeneous catalysis. Dalton Trans 2013; 42:13294-304. [PMID: 23770799 DOI: 10.1039/c3dt51180d] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nanoparticle (NP) catalysis is traditionally viewed as a sub-section of heterogeneous catalysis. However, certain properties of NP catalysts, especially NPs dispersed in solvents, indicate that there could be benefits from viewing them from the perspective of homogeneous catalysis. By applying the fundamental approaches and concepts routinely used in homogeneous catalysis to NP catalysts it should be possible to rationally design new nanocatalysts with superior properties to those currently in use.
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Affiliation(s)
- Ning Yan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117576 Singapore, Singapore.
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