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Recent Developments on Processes for Recovery of Rhodium Metal from Spent Catalysts. Catalysts 2022. [DOI: 10.3390/catal12111415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Rhodium (Rh) catalyst has played an indispensable role in many important industrial and technological applications due to its unique and valuable properties. Currently, Rh is considered as a strategic or critical metal as the scarce high-quality purity can only be supplemented by refining coarse ores with low content (2–10 ppm) and is far from meeting the fast-growing market demand. Nowadays, exploring new prospects has already become an urgent issue because of the gradual depletion of Rh resources, incidental pressure on environmental protection, and high market prices. Since waste catalyst materials, industrial equipment, and electronic instruments contain Rh with a higher concentration than that of natural minerals, recovering Rh from scrap not only offers an additional source to satisfy market demand but also reduces the risk of ore over-exploitation. Therefore, the recovery of Rh-based catalysts from scrap is of great significance. This review provides an overview of the Rh metal recovery from spent catalysts. The characteristics, advantages and disadvantages of several current recovery processes, including pyrometallurgy, hydrometallurgy, and biosorption technology, are presented and compared. Among them, the hydrometallurgical process is commonly used for Rh recovery from auto catalysts due to its technological simplicity, low cost, and short processing time, but the overall recovery rate is low due to its high remnant Rh within the insoluble residue and the unstable leaching. In contrast, higher Rh recovery and less effluent discharge can be ensured by a pyrometallurgical process which therefore is widely employed in industry to extract precious metals from spent catalysts. However, the related procedure is quite complex, leading to an expensive hardware investment, high energy consumption, long recovery cycles, and inevitable difficulties in controlling contamination in practice. Compared to conventional recovery methods, the biosorption process is considered to be a cost-effective biological route for Rh recovery owing to its intrinsic merits, e.g., low operation costs, small volume, and low amount of chemicals and biological sludge to be treated. Finally, we summarize the challenges and prospect of these three recovery processes in the hope that the community can gain more meaningful and comprehensive insights into Rh recovery.
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Li Z, Jiang H, Liu J, Ning T, Phan NTS, Zhang F. Self-Adaptive Dirhodium Complexes in a Metal-Organic Framework for Synthesis of N-H Aziridines. ACS APPLIED MATERIALS & INTERFACES 2022; 14:30714-30723. [PMID: 35785968 DOI: 10.1021/acsami.2c04603] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Conformational dynamics of active sites in enzymes enable great control over the catalytic process. Herein, we constructed a metal-organic framework with conformationally dynamic active sites (Rh2-ZIF-8). The active sites in Rh2-ZIF-8 were composed of the imidazolate-bridged bimetallic center with a catalytic dirhodium moiety and structural zinc site. Even though the coordination sphere of the dirhodium species was saturated with two circularly arranged esp groups and two axial 2-MeIm ligands, it could still effectively catalyze the direct synthesis of N-H aziridines from olefins with high activity. We found that such a self-adaptive catalytic process was based on the dynamic breakage and reformation of the rhodium-zinc imidazolate bridges. Interestingly, the in situ generated dirhodium site with a unique Rh2(esp)2(2-MeIm)1 configuration was able to exhibit obviously enhanced selectivity compared to homogeneous catalyst Rh2(esp)2. Furthermore, the surrounding zinc imidazolate groups could effectively protect the dirhodium moieties from harsh environments, and this ultimately endowed it with high stability.
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Affiliation(s)
- Zhenzhong Li
- Department of Chemistry, Shanghai Normal University, 100 Guilin Rd., Shanghai, 200234, China
| | - Huating Jiang
- Department of Chemistry, Shanghai Normal University, 100 Guilin Rd., Shanghai, 200234, China
| | - Jinxiu Liu
- Department of Chemistry, Shanghai Normal University, 100 Guilin Rd., Shanghai, 200234, China
| | - Tiantian Ning
- Department of Chemistry, Shanghai Normal University, 100 Guilin Rd., Shanghai, 200234, China
| | - Nam T S Phan
- Department of Chemical Engineering, HCMC University of Technology, Vietnam National University System-Ho Chi Minh City (VNU-HCM), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 008428, Vietnam
| | - Fang Zhang
- Department of Chemistry, Shanghai Normal University, 100 Guilin Rd., Shanghai, 200234, China
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3
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Paddlewheel dirhodium(II) complexes with N-heterocyclic carbene or phosphine ligand: New reactivity and selectivity. GREEN SYNTHESIS AND CATALYSIS 2022. [DOI: 10.1016/j.gresc.2022.03.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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4
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Loreto D, Esposito A, Demitri N, Guaragna A, Merlino A. Reactivity of a fluorine-containing dirhodium tetracarboxylate compound with proteins. Dalton Trans 2022; 51:3695-3705. [PMID: 35166290 DOI: 10.1039/d2dt00082b] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Dirhodium complexes of general formula [Rh2(O2CR)4]L2 are a well-known class of bimetallic compounds that are used as efficient catalysts for a variety of reactions and have been shown to be potent antibacterial and anticancer agents. The catalytic and biological properties of these complexes largely depend on the nature of the bridging carboxylate ligands. Trifluoroacetate (tfa)-containing dirhodium compounds have been used to build artificial metalloenzymes upon reaction with peptides and have been shown to be more cytotoxic than dirhodium tetraacetate. However, there is no structural information on the interaction between these compounds and proteins. Here, cis-Rh2(μ-O2CCH3)2(μ-O2CCF3)2 ([cis-Rh2(OAc)2(tfa)2]) has been synthesized and its reaction with bovine pancreatic ribonuclease (RNase A) and hen egg white lysozyme (HEWL) was analyzed using a combination of different techniques, including Fluorine-19 nuclear magnetic resonance spectroscopy and macromolecular X-ray crystallography, with the aim to unveil the differences in the reactivity of tfa-containing dihrodium complexes with proteins when compared to [Rh2(OAc)4]. [cis-Rh2(OAc)2(tfa)2] and [Rh2(OAc)4] bind the N atoms of His side chains of RNase A at the axial position; however the fluorine-containing compound rapidly loses its tfa ligands, while [Rh2(OAc)4] can retain the acetate ligands upon protein binding. The reactivity of [cis-Rh2(OAc)2(tfa)2] with HEWL is slightly distinct when compared to that of [Rh2(OAc)4] under the same experimental conditions; however, both [cis-Rh2(OAc)2(tfa)2] and [Rh2(OAc)4] degrade when soaked within HEWL crystals. These results provide a structural-based guide for the design of new heterogenous chiral dirhodium/peptide and dirhodium/protein adducts with application in the fields of organic synthesis and asymmetric catalysis.
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Affiliation(s)
- Domenico Loreto
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, via Cinthia 21, 80126 Naples, Italy.
| | - Anna Esposito
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, P.le V. Tecchio 80, 80125 Naples, Italy
| | - Nicola Demitri
- Elettra-Sincrotrone Trieste, S.S. 14 km 163.5 in Area Science Park, 34149 Trieste, Italy
| | - Annalisa Guaragna
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, P.le V. Tecchio 80, 80125 Naples, Italy
| | - Antonello Merlino
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario di Monte Sant'Angelo, via Cinthia 21, 80126 Naples, Italy.
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Zhang B, Reek JNH. Supramolecular Strategies for the Recycling of Homogeneous Catalysts. Chem Asian J 2021; 16:3851-3863. [PMID: 34606169 PMCID: PMC9297887 DOI: 10.1002/asia.202100968] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/29/2021] [Indexed: 11/11/2022]
Abstract
Supramolecular approaches are increasingly used in the development of homogeneous catalysts and they also provide interesting new tools for the recycling of metal-based catalysts. Various non-covalent interactions have been utilized for the immobilization homogeneous catalysts on soluble and insoluble support. By non-covalent anchoring the supported catalysts obtained can be recovered via (nano-) filtration or such catalytic materials can be used in continuous flow reactors. Specific benefits from the reversibility of catalyst immobilization by non-covalent interactions include the possibility to re-functionalize the support material and the use as "boomerang" type catalyst systems in which the catalyst is captured after a homogeneous reaction. In addition, new reactor design with implemented recycling strategies becomes possible, such as a reverse-flow adsorption reactor (RFA) that combines a homogeneous reactor with selective catalyst adsorption/desorpion. Next to these non-covalent immobilization strategies, supramolecular chemistry can also be used to generate the support, for example by generation of self-assembled gels with catalytic function. Although the stability is a challenging issue, some self-assembled gel materials have been successfully utilized as reusable heterogeneous catalysts. In addition, catalytically active coordination cages, which are frequently used to achieve specific activity or selectivity, can be bound to support by ionic interactions or can be prepared in structured solid materials. These new heterogenized cage materials also have been used successfully as recyclable catalysts.
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Affiliation(s)
- Bo Zhang
- Homogeneous, Supramolecular and Bio-Inspired Catalysis, Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Joost N H Reek
- Homogeneous, Supramolecular and Bio-Inspired Catalysis, Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
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6
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Abshire A, Moore D, Courtney J, Darko A. Heteroleptic dirhodium(II,II) paddlewheel complexes as carbene transfer catalysts. Org Biomol Chem 2021; 19:8886-8905. [PMID: 34611688 DOI: 10.1039/d1ob01414e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review highlights the applications of dirhodium(II,II) paddlewheel complexes with a heteroleptic scaffold. Dirhodium(II,II) paddlewheel complexes are well known as highly efficient and selective carbene transfer catalysts. While the majority of described complexes are homoleptic, comparatively fewer studies have concerned heteroleptic complexes. Here, we emphasise the use of heteroleptic complexes in order to highlight their benefits as carbene transfer catalysts and spur future research. Methods to synthesise heteroleptic dirhodium(II,II) paddlewheel complexes are discussed as well as a categorical review of their types of heteroleptic complexes and the carbene reactions in which they have been used.
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Affiliation(s)
- Anthony Abshire
- Department of Chemistry, University of Tennessee, Knoxville, TN 37796-1600, USA.
| | - Desiree Moore
- Department of Chemistry, University of Tennessee, Knoxville, TN 37796-1600, USA.
| | - Jobe Courtney
- Department of Chemistry, University of Tennessee, Knoxville, TN 37796-1600, USA.
| | - Ampofo Darko
- Department of Chemistry, University of Tennessee, Knoxville, TN 37796-1600, USA.
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7
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Ohnishi R, Ohta H, Mori S, Hayashi M. Cationic Dirhodium Complexes Bridged by 2-Phosphinopyridines Having an Exquisitely Positioned Axial Shielding Group: A Molecular Design for Enhancing the Catalytic Activity of the Dirhodium Core. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00314] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Ryuhei Ohnishi
- Department of Materials Science and Biotechnology, Graduate School of Science and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama 790-8577, Japan
| | - Hidetoshi Ohta
- Department of Materials Science and Biotechnology, Graduate School of Science and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama 790-8577, Japan
| | - Shigeki Mori
- Division of Material Science, Advanced Research Support Center (ADRES), Ehime University, 2-5 Bunkyo-cho, Matsuyama 790-8577, Japan
| | - Minoru Hayashi
- Department of Materials Science and Biotechnology, Graduate School of Science and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama 790-8577, Japan
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Pietruschka DS, Kumari B, Buntkowsky G, Gutmann T, Mollenhauer D. Mechanism of Heterogenization of Dirhodium Catalysts: Insights from DFT Calculations. Inorg Chem 2021; 60:6239-6248. [PMID: 33856209 DOI: 10.1021/acs.inorgchem.0c03712] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Dirhodium(II) complexes such as [Rh2(TFA)4] bound to a functionalized mesoporous SBA-15 carrier material have proven to be valuable candidates for heterogeneous catalysis in the field of pharmaceutical synthesis. However, the mechanistic steps of immobilization by linker molecules containing carboxyl or amine functionalities remain the subject of discussion. Here we present a theoretical study of possible mechanistic binding pathways for the [Rh2(TFA)4] complex through model representations of synthetically investigated linkers, namely n-butylamine and n-butyric acid. Experimentally proposed intermediates of the immobilization process are investigated and analyzed by density functional theory calculations to gain insights into structural properties and the influence of solvation. An evaluation of the thermodynamic data for all identified intermediates allowed distinguishing between two possible reaction pathways that are characterized by a first axial complexation of either n-butyric acid or n-butylamine. In agreement with results from NMR spectroscopy, singly or doubly n-butylamine-fixated complexes were found to present possible immobilization products. Initial binding through a carboxy-functionalized linker is proposed as the most favorable reaction pathway for the formation of the mixed linker pattern [Rh2(TFA)3]·(n-butylamine)·(n-butyrate). The linkers n-butyric acid and n-butyrate, respectively, are found to exhibit an unaltered binding affinity to the dirhodium complex despite their protonation states, indicating invariance to the acidic environment unlike an immobilization by n-butylamine. These results present a theoretical framework for the rationalization of observed product distributions while also providing inspiration and guidance for the preparation of functionalized heterogeneous SBA-15/dirhodium catalyst systems.
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Affiliation(s)
- Dennis S Pietruschka
- Physikalisch-Chemisches Institut, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 17, D-35392 Gießen, Germany.,Center for Materials Research (LaMa), Justus-Liebig-Universität, Heinrich-Buff-Ring 16, D-35392 Gießen, Germany
| | - Bharti Kumari
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Alarich-Weiss-Straße 8, D-64287 Darmstadt, Germany
| | - Gerd Buntkowsky
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Alarich-Weiss-Straße 8, D-64287 Darmstadt, Germany
| | - Torsten Gutmann
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Alarich-Weiss-Straße 8, D-64287 Darmstadt, Germany
| | - Doreen Mollenhauer
- Physikalisch-Chemisches Institut, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 17, D-35392 Gießen, Germany.,Center for Materials Research (LaMa), Justus-Liebig-Universität, Heinrich-Buff-Ring 16, D-35392 Gießen, Germany
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9
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Lin S, Turro C. Dirhodium Complexes as Panchromatic Sensitizers, Electrocatalysts, and Photocatalysts. Chemistry 2021; 27:5379-5387. [DOI: 10.1002/chem.202003950] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/09/2020] [Indexed: 11/09/2022]
Affiliation(s)
- Shaoyang Lin
- Department of Chemistry and Biochemistry The Ohio State University 100 W. 18th Ave. Columbus OH 43210 USA
| | - Claudia Turro
- Department of Chemistry and Biochemistry The Ohio State University 100 W. 18th Ave. Columbus OH 43210 USA
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10
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Li Z, Rösler L, Herr K, Brodrecht M, Breitzke H, Hofmann K, Limbach HH, Gutmann T, Buntkowsky G. Dirhodium Coordination Polymers for Asymmetric Cyclopropanation of Diazooxindoles with Olefins: Synthesis and Spectroscopic Analysis. Chempluschem 2020; 85:1737-1746. [PMID: 32790226 DOI: 10.1002/cplu.202000421] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/22/2020] [Indexed: 12/30/2022]
Abstract
A facile approach is reported for the preparation of dirhodium coordination polymers [Rh2 (L1)2 ]n (Rh2 -L1) and [Rh2 (L2)2 ]n (Rh2 -L2; L1=N,N'-(pyromellitoyl)-bis-L-phenylalanine diacid anion, L2=bis-N,N'-(L-phenylalanyl) naphthalene-1,4,5,8-tetracarboxylate diimide) from chiral dicarboxylic acids by ligand exchange. Multiple techniques including FTIR, XPS, and 1 H→13 C CP MAS NMR spectroscopy reveal the formation of the coordination polymers. 19 F MAS NMR was utilized to investigate the remaining TFA groups in the obtained coordination polymers, and demonstrated near-quantitative ligand exchange. DR-UV-vis and XPS confirm the oxidation state of the Rh center and that the Rh-single bond in the dirhodium node is maintained in the synthesis of Rh2 -L1 and Rh2 -L2. Both coordination polymers exhibit excellent catalytic performance in the asymmetric cyclopropanation reaction between styrene and diazooxindole. The catalysts can be easily recycled and reused without significant reduction in their catalytic efficiency.
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Affiliation(s)
- Zhenzhong Li
- Technical University of Darmstadt, Institute of Inorganic and Physical Chemistry, Alarich-Weiss-Straße 8, 64287, Darmstadt, Germany
| | - Lorenz Rösler
- Technical University of Darmstadt, Institute of Inorganic and Physical Chemistry, Alarich-Weiss-Straße 8, 64287, Darmstadt, Germany
| | - Kevin Herr
- Technical University of Darmstadt, Institute of Inorganic and Physical Chemistry, Alarich-Weiss-Straße 8, 64287, Darmstadt, Germany
| | - Martin Brodrecht
- Technical University of Darmstadt, Institute of Inorganic and Physical Chemistry, Alarich-Weiss-Straße 8, 64287, Darmstadt, Germany
| | - Hergen Breitzke
- Technical University of Darmstadt, Institute of Inorganic and Physical Chemistry, Alarich-Weiss-Straße 8, 64287, Darmstadt, Germany
| | - Kathrin Hofmann
- Technical University of Darmstadt, Institute of Inorganic and Physical Chemistry, Alarich-Weiss-Straße 8, 64287, Darmstadt, Germany
| | - Hans-Heinrich Limbach
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Takustraße 3, 14195, Berlin, Germany
| | - Torsten Gutmann
- Technical University of Darmstadt, Institute of Inorganic and Physical Chemistry, Alarich-Weiss-Straße 8, 64287, Darmstadt, Germany.,University Kassel, Institute of Chemistry and Center for Interdisciplinary Nanostructure Science and Technology, Heinrich-Plett-Straße 40, D-34132, Kassel, Germany
| | - Gerd Buntkowsky
- Technical University of Darmstadt, Institute of Inorganic and Physical Chemistry, Alarich-Weiss-Straße 8, 64287, Darmstadt, Germany
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11
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Li SJ, Li X, Mo H, Qu LB, Wei D, Lan Y. With metal or not? a computationally predicted rule for a dirhodium catalyst in [3+3] cycloadditions of triazole with thiirane. Chem Commun (Camb) 2020; 56:4732-4735. [DOI: 10.1039/d0cc01293a] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three possible pathways were explored to determine the inherent role of dirhodium in triazole transformation/functionalization.
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Affiliation(s)
- Shi-Jun Li
- College of Chemistry, and Institute of Green Catalysis
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Xue Li
- College of Chemistry, and Institute of Green Catalysis
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Huilin Mo
- College of Chemistry, and Institute of Green Catalysis
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Ling-Bo Qu
- College of Chemistry, and Institute of Green Catalysis
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Donghui Wei
- College of Chemistry, and Institute of Green Catalysis
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Yu Lan
- College of Chemistry, and Institute of Green Catalysis
- Zhengzhou University
- Zhengzhou
- P. R. China
- School of Chemistry and Chemical Engineering, and Chongqing Key Laboratory of Theoretical and Computational Chemistry
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Shende VS, Saptal VB, Bhanage BM. Recent Advances Utilized in the Recycling of Homogeneous Catalysis. CHEM REC 2019; 19:2022-2043. [PMID: 31021522 DOI: 10.1002/tcr.201800205] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Indexed: 12/14/2022]
Abstract
Homogeneous catalysts often show high activity and selectivity towards the various chemical transformations. Most of the transition metal-based active catalysts are expensive, rare, and have strict regulations for their use in pharmaceutical products. Hence, there is a requirement to develop suitable technologies for the practical separation and recycling of metal complex catalysts along with the sustainability of the process. This review focuses on the recent techniques used for the catalyst separation, their recovery, and recyclability of the homogeneous form of catalysts based on their economic compatibility and industrial applications. Various homogeneous catalysts have been reviewed on the basis of their support or media, active centres and recyclability aspects of the catalysts. This review gives brief insights into the varied examples of different recycling techniques utilized in the past 6-7 years.
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Affiliation(s)
- Vaishali S Shende
- Department of Chemistry, Institute of Chemical Technology (Autonomous), Matunga, Mumbai, 400 019, India
| | - Vitthal B Saptal
- Department of Chemistry, Institute of Chemical Technology (Autonomous), Matunga, Mumbai, 400 019, India
| | - Bhalchandra M Bhanage
- Department of Chemistry, Institute of Chemical Technology (Autonomous), Matunga, Mumbai, 400 019, India
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Levchenko V, Sundsli B, Øien-Ødegaard S, Tilset M, Hansen FK, Bonge-Hansen T. Bottom-Up Synthesis of Acrylic and Styrylic RhII
Carboxylate Polymer Beads: Solid-Supported Analogs of Rh2
(OAc)4. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800953] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Vladimir Levchenko
- Department of Chemistry; University of Oslo; P.O. Box 1033, Blindern NO-0315 Oslo Norway
| | - Bård Sundsli
- Department of Chemistry; University of Oslo; P.O. Box 1033, Blindern NO-0315 Oslo Norway
| | - Sigurd Øien-Ødegaard
- Department of Chemistry; University of Oslo; P.O. Box 1033, Blindern NO-0315 Oslo Norway
| | - Mats Tilset
- Department of Chemistry; University of Oslo; P.O. Box 1033, Blindern NO-0315 Oslo Norway
| | - Finn K. Hansen
- Department of Chemistry; University of Oslo; P.O. Box 1033, Blindern NO-0315 Oslo Norway
| | - Tore Bonge-Hansen
- Department of Chemistry; University of Oslo; P.O. Box 1033, Blindern NO-0315 Oslo Norway
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14
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Li SJ, Fang DC. DFT Studies on the Dirhodium-Catalyzed [3 + 2] and [3 + 3] Cycloaddition Reactions of Enol Diazoacetates with Isoquinolinium Methylide: Mechanism, Selectivity, and Ligand Effect. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00069] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Shi-Jun Li
- College of Chemistry, Beijing Normal University, Beijing 100875, People’s Republic of China
| | - De-Cai Fang
- College of Chemistry, Beijing Normal University, Beijing 100875, People’s Republic of China
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15
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Liu J, Xu Y, Groszewicz PB, Brodrecht M, Fasel C, Hofmann K, Tan X, Gutmann T, Buntkowsky G. Novel dirhodium coordination polymers: the impact of side chains on cyclopropanation. Catal Sci Technol 2018. [DOI: 10.1039/c8cy01493k] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Seven novel dirhodium coordination polymers (Rh2–Ln) (n = 1–7) are prepared by employing bitopic ligands to connect dirhodium nodes.
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Affiliation(s)
- Jiquan Liu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry
- College of Chemistry and Materials Science
- Northwest University
- 710127 Xi'an
- P. R. China
| | - Yeping Xu
- Eduard-Zintl-Institute for Inorganic Chemistry and Physical Chemistry
- Technical University Darmstadt
- 64287 Darmstadt
- Germany
| | - Pedro B. Groszewicz
- Eduard-Zintl-Institute for Inorganic Chemistry and Physical Chemistry
- Technical University Darmstadt
- 64287 Darmstadt
- Germany
| | - Martin Brodrecht
- Eduard-Zintl-Institute for Inorganic Chemistry and Physical Chemistry
- Technical University Darmstadt
- 64287 Darmstadt
- Germany
| | - Claudia Fasel
- FB Material- und Geowissenschaften
- Technical University Darmstadt
- 64287 Darmstadt
- Germany
| | - Kathrin Hofmann
- Eduard-Zintl-Institute for Inorganic Chemistry and Physical Chemistry
- Technical University Darmstadt
- 64287 Darmstadt
- Germany
| | - Xijuan Tan
- Laboratory of Mineralization and Dynamics
- College of Earth Sciences and Land Resources
- Chang'an University
- 710054 Xi'an
- P. R. China
| | - Torsten Gutmann
- Eduard-Zintl-Institute for Inorganic Chemistry and Physical Chemistry
- Technical University Darmstadt
- 64287 Darmstadt
- Germany
| | - Gerd Buntkowsky
- Eduard-Zintl-Institute for Inorganic Chemistry and Physical Chemistry
- Technical University Darmstadt
- 64287 Darmstadt
- Germany
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16
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Liu G, Wang Y, Zhu B, Zhang L, Su CY. A porous metal–organic aerogel based on dirhodium paddle-wheels as an efficient and stable heterogeneous catalyst towards the reduction reaction of aldehydes and ketones. NEW J CHEM 2018. [DOI: 10.1039/c8nj01784k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new mesoporous metal–organic aerogel based on dirhodium paddle-wheels has been successfully synthesized and applied in the hydrosilylation reaction of aldehydes and ketones.
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Affiliation(s)
- Gang Liu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry
- Lehn Institute of Functional Materials
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
| | - Yanhu Wang
- MOE Laboratory of Bioinorganic and Synthetic Chemistry
- Lehn Institute of Functional Materials
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
| | - Baofu Zhu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry
- Lehn Institute of Functional Materials
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
| | - Li Zhang
- MOE Laboratory of Bioinorganic and Synthetic Chemistry
- Lehn Institute of Functional Materials
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
| | - Cheng-Yong Su
- MOE Laboratory of Bioinorganic and Synthetic Chemistry
- Lehn Institute of Functional Materials
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
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Kang J, Chen L, Cui H, Zhang L, Su CY. N-H Insertion Reactions Catalyzed by a Dirhodium Metal-Organic Cage: A Facile and Recyclable Approach for C-N Bond Formation. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201600818] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jian Kang
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry; Sun Yat-sen University; Guangzhou Guangdong 510275 China
| | - Lianfen Chen
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry; Sun Yat-sen University; Guangzhou Guangdong 510275 China
| | - Hao Cui
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry; Sun Yat-sen University; Guangzhou Guangdong 510275 China
| | - Li Zhang
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry; Sun Yat-sen University; Guangzhou Guangdong 510275 China
| | - Cheng-Yong Su
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry; Sun Yat-sen University; Guangzhou Guangdong 510275 China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; Shanghai 200032 China
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19
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Ring A, Ford A, Maguire AR. Substrate and catalyst effects in C–H insertion reactions of α-diazoacetamides. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.10.081] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Liu J, Fasel C, Braga-Groszewicz P, Rothermel N, Lilly Thankamony AS, Sauer G, Xu Y, Gutmann T, Buntkowsky G. Heterogeneous self-supported dirhodium(ii) catalysts with high catalytic efficiency in cyclopropanation – a structural study. Catal Sci Technol 2016. [DOI: 10.1039/c6cy00915h] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Catalytically active dirhodium sheet-like coordination polymers are synthesized from their precursors via ligand exchange.
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Affiliation(s)
- Jiquan Liu
- Eduard-Zintl-Institute for Inorganic Chemistry and Physical Chemistry
- Technical University Darmstadt
- D-64287 Darmstadt
- Germany
| | - Claudia Fasel
- FB Material- und Geowissenschaften
- Technical University Darmstadt
- 64287 Darmstadt
- Germany
| | - Pedro Braga-Groszewicz
- Eduard-Zintl-Institute for Inorganic Chemistry and Physical Chemistry
- Technical University Darmstadt
- D-64287 Darmstadt
- Germany
| | - Niels Rothermel
- Eduard-Zintl-Institute for Inorganic Chemistry and Physical Chemistry
- Technical University Darmstadt
- D-64287 Darmstadt
- Germany
| | - Aany Sofia Lilly Thankamony
- Eduard-Zintl-Institute for Inorganic Chemistry and Physical Chemistry
- Technical University Darmstadt
- D-64287 Darmstadt
- Germany
| | - Grit Sauer
- Eduard-Zintl-Institute for Inorganic Chemistry and Physical Chemistry
- Technical University Darmstadt
- D-64287 Darmstadt
- Germany
| | - Yeping Xu
- Eduard-Zintl-Institute for Inorganic Chemistry and Physical Chemistry
- Technical University Darmstadt
- D-64287 Darmstadt
- Germany
| | - Torsten Gutmann
- Eduard-Zintl-Institute for Inorganic Chemistry and Physical Chemistry
- Technical University Darmstadt
- D-64287 Darmstadt
- Germany
| | - Gerd Buntkowsky
- Eduard-Zintl-Institute for Inorganic Chemistry and Physical Chemistry
- Technical University Darmstadt
- D-64287 Darmstadt
- Germany
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21
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Zhao L, Zhang H, Wang Y. Dirhodium(II)-Catalyzed Sulfide Oxygenations: Catalyst Removal by Coprecipitation with Sulfoxides. J Org Chem 2015; 81:129-36. [PMID: 26643580 DOI: 10.1021/acs.joc.5b02400] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The dirhodium(II) carboxylate complex Rh2(esp)2 (esp = α,α,α',α'-tetramethyl-1,3-benzenedipropanoate) was shown to catalyze the sulfoxidation of organic sulfides using tert-butyl hydroperoxide as the oxidant. Due to the unique structure of Rh2(esp)2 and its stable Rh2(II,II) catalyst resting state, the rhodium catalyst is able to precipitate as a Rh2(esp)2-sulfoxide complex following the reaction which makes separation of the catalyst from the products very convenient. The precipitated Rh2(esp)2-sulfoxide complexes could be reused to catalyze sulfide oxygenation reactions without considerable loss of activity. Mechanistic studies suggest that the axial ligands fine-tune the redox potential of the dirhodium(II,II) compounds and determine the predominant catalyst species in the oxidation reaction.
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Affiliation(s)
- Lili Zhao
- College of Chemistry, Sichuan University , Chengdu, 610064, P. R. China
| | - Hongyang Zhang
- College of Chemistry, Sichuan University , Chengdu, 610064, P. R. China
| | - Yuanhua Wang
- College of Chemistry, Sichuan University , Chengdu, 610064, P. R. China
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22
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Liu J, Plog A, Groszewicz P, Zhao L, Xu Y, Breitzke H, Stark A, Hoffmann R, Gutmann T, Zhang K, Buntkowsky G. Design of a Heterogeneous Catalyst Based on Cellulose Nanocrystals for Cyclopropanation: Synthesis and Solid-State NMR Characterization. Chemistry 2015; 21:12414-20. [DOI: 10.1002/chem.201501151] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Indexed: 11/10/2022]
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Gutmann T, Liu J, Rothermel N, Xu Y, Jaumann E, Werner M, Breitzke H, Sigurdsson ST, Buntkowsky G. Natural abundance 15N NMR by dynamic nuclear polarization: fast analysis of binding sites of a novel amine-carboxyl-linked immobilized dirhodium catalyst. Chemistry 2015; 21:3798-805. [PMID: 25620003 DOI: 10.1002/chem.201405043] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Indexed: 11/05/2022]
Abstract
A novel heterogeneous dirhodium catalyst has been synthesized. This stable catalyst is constructed from dirhodium acetate dimer (Rh2(OAc)4) units, which are covalently linked to amine- and carboxyl-bifunctionalized mesoporous silica (SBA-15-NH2-COOH). It shows good efficiency in catalyzing the cyclopropanation reaction of styrene and ethyl diazoacetate (EDA) forming cis- and trans-1-ethoxycarbonyl-2-phenylcyclopropane. To characterize the structure of this catalyst and to confirm the successful immobilization, heteronuclear solid-state NMR experiments have been performed. The high application potential of dynamic nuclear polarization (DNP) NMR for the analysis of binding sites in this novel catalyst is demonstrated. Signal-enhanced (13)C CP MAS and (15)N CP MAS techniques have been employed to detect different carboxyl and amine binding sites in natural abundance on a fast time scale. The interpretation of the experimental chemical shift values for different binding sites has been corroborated by quantum chemical calculations on dirhodium model complexes.
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Affiliation(s)
- Torsten Gutmann
- Institute of Physical Chemistry, Technical University Darmstadt, Alarich-Weiss-Straße 8, 64287 Darmstadt (Germany).
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Wang Y, Kuang Y, Wang Y. Rh2(esp)2-catalyzed allylic and benzylic oxidations. Chem Commun (Camb) 2015; 51:5852-5. [DOI: 10.1039/c4cc10336j] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The dirhodium(ii) catalyst Rh2(esp)2 allows direct solvent-free allylic and benzylic oxidation by T-HYDRO with a remarkably low catalyst loading.
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Affiliation(s)
- Yi Wang
- College of Chemistry
- Sichuan University
- Chengdu
- P. R. China
| | - Yi Kuang
- College of Chemistry
- Sichuan University
- Chengdu
- P. R. China
| | - Yuanhua Wang
- College of Chemistry
- Sichuan University
- Chengdu
- P. R. China
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Ebrahimi A, Heydari A, Esrafili A. Maghemite Supported Copper Oxide Nanocatalyst for the N–H Insertion Reaction with Ethyl Diazoacetate. Catal Letters 2014. [DOI: 10.1007/s10562-014-1391-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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26
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Ratnikov MO, Doyle MP. Dirhodium caprolactamate and tert-butyl hydro- peroxide – a universal system for selective oxidations. MENDELEEV COMMUNICATIONS 2014. [DOI: 10.1016/j.mencom.2014.06.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Liang Y, Harrell ML, Bergbreiter DE. Using Soluble Polymers to Enforce Catalyst-Phase-Selective Solubility and as Antileaching Agents to Facilitate Homogeneous Catalysis. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201402805] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Liang Y, Harrell ML, Bergbreiter DE. Using Soluble Polymers to Enforce Catalyst-Phase-Selective Solubility and as Antileaching Agents to Facilitate Homogeneous Catalysis. Angew Chem Int Ed Engl 2014; 53:8084-7. [DOI: 10.1002/anie.201402805] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Indexed: 11/09/2022]
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29
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Kornecki KP, Berry JF, Powers DC, Ritter T. MetalMetal Bond-Containing Complexes as Catalysts for CH Functionalization. PROGRESS IN INORGANIC CHEMISTRY 2014. [DOI: 10.1002/9781118792797.ch04] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Chepiga KM, Feng Y, Brunelli NA, Jones CW, Davies HML. Silica-Immobilized Chiral Dirhodium(II) Catalyst for Enantioselective Carbenoid Reactions. Org Lett 2013; 15:6136-9. [DOI: 10.1021/ol403006r] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kathryn M. Chepiga
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States, and School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30322, United States
| | - Yan Feng
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States, and School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30322, United States
| | - Nicholas A. Brunelli
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States, and School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30322, United States
| | - Christopher W. Jones
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States, and School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30322, United States
| | - Huw M. L. Davies
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States, and School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30322, United States
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Candeias NR, Carias C, Gomes LFR, André V, Duarte MT, Gois PMP, Afonso CAM. Asymmetric Intramolecular CH Insertion of α-Diazoacetamides in Water by Dirhodium(II) Catalysts Derived from Natural Amino Acids. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200101] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Barrozo A, Borstnar R, Marloie G, Kamerlin SCL. Computational protein engineering: bridging the gap between rational design and laboratory evolution. Int J Mol Sci 2012. [PMID: 23202907 PMCID: PMC3497281 DOI: 10.3390/ijms131012428] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Enzymes are tremendously proficient catalysts, which can be used as extracellular catalysts for a whole host of processes, from chemical synthesis to the generation of novel biofuels. For them to be more amenable to the needs of biotechnology, however, it is often necessary to be able to manipulate their physico-chemical properties in an efficient and streamlined manner, and, ideally, to be able to train them to catalyze completely new reactions. Recent years have seen an explosion of interest in different approaches to achieve this, both in the laboratory, and in silico. There remains, however, a gap between current approaches to computational enzyme design, which have primarily focused on the early stages of the design process, and laboratory evolution, which is an extremely powerful tool for enzyme redesign, but will always be limited by the vastness of sequence space combined with the low frequency for desirable mutations. This review discusses different approaches towards computational enzyme design and demonstrates how combining newly developed screening approaches that can rapidly predict potential mutation “hotspots” with approaches that can quantitatively and reliably dissect the catalytic step can bridge the gap that currently exists between computational enzyme design and laboratory evolution studies.
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Affiliation(s)
- Alexandre Barrozo
- Department of Cell and Molecular Biology, Uppsala Biomedical Center (BMC), Uppsala University, Box 596, S-751 24 Uppsala, Sweden; E-Mails: (A.B.); (R.B.); (G.M.)
| | - Rok Borstnar
- Department of Cell and Molecular Biology, Uppsala Biomedical Center (BMC), Uppsala University, Box 596, S-751 24 Uppsala, Sweden; E-Mails: (A.B.); (R.B.); (G.M.)
- Laboratory for Biocomputing and Bioinformatics, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia
| | - Gaël Marloie
- Department of Cell and Molecular Biology, Uppsala Biomedical Center (BMC), Uppsala University, Box 596, S-751 24 Uppsala, Sweden; E-Mails: (A.B.); (R.B.); (G.M.)
| | - Shina Caroline Lynn Kamerlin
- Department of Cell and Molecular Biology, Uppsala Biomedical Center (BMC), Uppsala University, Box 596, S-751 24 Uppsala, Sweden; E-Mails: (A.B.); (R.B.); (G.M.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +46-18-471-4423; Fax: +46-18-530-396
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Oohara T, Nambu H, Anada M, Takeda K, Hashimoto S. A Polymer-Supported Chiral Fluorinated Dirhodium(II) Complex for Asymmetric Amination of Silyl Enol Ethers. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200219] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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