1
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Kılınçarslan R, Tuncer H, Özdemir N, Çetinkaya B. Vitamin B1-based thiazol-2-ylidene-Ru(II) complexes: recyclable transfer hydrogenation catalysts in water. Dalton Trans 2024; 53:9192-9197. [PMID: 38742996 DOI: 10.1039/d4dt00445k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
The [(p-cymene)RuCl(κ2C,N-{CNHC-NH})]+X- (CNHC = thiazol-2-ylidene) complexes with a bidentate ligand (2: X = Cl and 3: X = PF6) were prepared by a one-pot reaction of vitamin B1 (VB1, 1), Ag2O and [(p-cymene)RuCl2]2. In the complexes, VB1 coordinates through C2 and the exocyclic N in the imino form with the κ2-(C,N) coordination mode. The complexes 2 and 3 are stable in the solid state, but slowly release p-cymene in solution. Furthermore, upon heating in polar solvents, 2 or 3 can be converted by ligand exchange reactions to produce [(L)3RuCl(κ2C,N-{CNHC-NH})]+PF6- (4: L = py).Robustness was improved remarkably for 4. The complex 4 is stable in the solid state and in solution. The complexes 2-4 have been identified by 1H and 13C{1H} 2D NMR spectroscopy and 2 and 4 were studied by X-ray crystallography. In an effort to develop a recyclable catalyst in water, 2-4 were evaluated for TH of ketones and aldehydes with an azeotropic mixture of HCOOH/Et3N in water. The complexes 3 and 4 exhibited very good catalytic activity and 4 could be reused nine times without significant loss of activity, giving a high turnover frequency (TOF50%(h-1) = 1286).
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Affiliation(s)
- Rafet Kılınçarslan
- Pamukkale University, Faculty of Science, Department of Chemistry, 20070, Denizli, Turkey.
| | - Hayriye Tuncer
- Pamukkale University, Faculty of Science, Department of Chemistry, 20070, Denizli, Turkey.
| | - Namık Özdemir
- Ondokuz Mayıs University, Faculty of Science, Department of Physics, 55139, Samsun, Turkey
| | - Bekir Çetinkaya
- Ege University, Faculty of Science, Department of Chemistry, 35100, İzmir, Turkey
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2
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Ojo OS, Steel HJ, Miras HN. Expeditious access to cis-β-aryl, γ-alkyl disubstituted (±)-γ-butyrolactones via nickel-hydride catalysis. Org Biomol Chem 2023; 21:6738-6742. [PMID: 37551644 DOI: 10.1039/d3ob00895a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
The 1,4-reduction of β- and γ-substituted butenolides using 5 mol% of NiCl2·6H2O and NaBH4 in MeOH for rapid access to cis-β,γ-disubstituted γ-butyrolactones is described. The reaction was selective for cis-products, which were obtained in good to excellent yields. This study showcased the influence of steric hindrance and angle strain on the diastereoselectivity outcome of conjugate reductions facilitated by in situ generated nickel-hydride.
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Affiliation(s)
- O Stephen Ojo
- WestCHEM, School of Chemistry, University of Glasgow, The Joseph Black Building, Glasgow, G12 8QQ, UK.
| | - Hannah J Steel
- WestCHEM, School of Chemistry, University of Glasgow, The Joseph Black Building, Glasgow, G12 8QQ, UK.
| | - Haralampos N Miras
- WestCHEM, School of Chemistry, University of Glasgow, The Joseph Black Building, Glasgow, G12 8QQ, UK.
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3
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Poli R. A new classification for the ever-expanding mechanistic landscape of catalyzed hydrogenations, dehydrogenations and transfer hydrogenations. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2023. [DOI: 10.1016/bs.adomc.2022.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
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4
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Tsui BTH, Sung MMH, Kinas J, Hahn FE, Morris RH. A Ruthenium Protic N-Heterocyclic Carbene Complex as a Precatalyst for the Efficient Transfer Hydrogenation of Aryl Ketones. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Brian T. H. Tsui
- Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada
| | - Molly M. H. Sung
- Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada
| | - Jenny Kinas
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 30, Münster D-48149, Germany
| | - F. Ekkehardt Hahn
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 30, Münster D-48149, Germany
| | - Robert H. Morris
- Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada
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5
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Neshat A, Mastrorilli P, Mousavizadeh Mobarakeh A. Recent Advances in Catalysis Involving Bidentate N-Heterocyclic Carbene Ligands. Molecules 2021; 27:95. [PMID: 35011327 PMCID: PMC8746573 DOI: 10.3390/molecules27010095] [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: 11/02/2021] [Revised: 12/02/2021] [Accepted: 12/13/2021] [Indexed: 11/17/2022] Open
Abstract
Since the discovery of persistent carbenes by the isolation of 1,3-di-l-adamantylimidazol-2-ylidene by Arduengo and coworkers, we witnessed a fast growth in the design and applications of this class of ligands and their metal complexes. Modular synthesis and ease of electronic and steric adjustability made this class of sigma donors highly popular among chemists. While the nature of the metal-carbon bond in transition metal complexes bearing N-heterocyclic carbenes (NHCs) is predominantly considered to be neutral sigma or dative bonds, the strength of the bond is highly dependent on the energy match between the highest occupied molecular orbital (HOMO) of the NHC ligand and that of the metal ion. Because of their versatility, the coordination chemistry of NHC ligands with was explored with almost all transition metal ions. Other than the transition metals, NHCs are also capable of establishing a chemical bond with the main group elements. The advances in the catalytic applications of the NHC ligands linked with a second tether are discussed. For clarity, more frequently targeted catalytic reactions are considered first. Carbon-carbon coupling reactions, transfer hydrogenation of alkenes and carbonyl compounds, ketone hydrosilylation, and chiral catalysis are among highly popular reactions. Areas where the efficacy of the NHC based catalytic systems were explored to a lesser extent include CO2 reduction, C-H borylation, alkyl amination, and hydroamination reactions. Furthermore, the synthesis and applications of transition metal complexes are covered.
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Affiliation(s)
- Abdollah Neshat
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran;
| | - Piero Mastrorilli
- Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica, Politecnico di Bari, Via Orabona, I-70125 Bari, Italy;
| | - Ali Mousavizadeh Mobarakeh
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran;
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6
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Mechanistic insight into the isomerization of allyl alcohol catalyzed by the Co(II)-PNP catalyst: Crucial role of spectator ligand. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Abstract
Although the application of arene-osmium(II) complexes in homogeneous catalysis has been much less studied than that of their ruthenium analogues, different works have shown that, in some instances, a comparable or even superior effectiveness can be achieved with this particular class of compounds. This review article focuses on the catalytic applications of arene-osmium(II) complexes. Among others, transfer hydrogenation, hydrogenation, oxidation, and nitrile hydration reactions, as well as different C-C bond forming processes, are comprehensively discussed.
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8
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Pasyukov DV, Chernenko AY, Shepelenko KE, Kutyrev VV, Khrustalev VN, Chernyshev VM. 3-Amino-1,2,4-triazolium salts as NHC-proligands: synthesis and postmodification of a new type of amino-functionalized Pd/NHC complexes. MENDELEEV COMMUNICATIONS 2021. [DOI: 10.1016/j.mencom.2021.03.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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9
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Kalsin AM, Peganova TA, Sinopalnikova IS, Fedyanin IV, Belkova NV, Deydier E, Poli R. Mechanistic diversity in acetophenone transfer hydrogenation catalyzed by ruthenium iminophosphonamide complexes. Dalton Trans 2020; 49:1473-1484. [PMID: 31916565 DOI: 10.1039/c9dt04532e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A series of arene ruthenium iminophosphonamide complexes, [(Arene)RuCl{R2P(NR')2}] (1), bearing various arenes and R,R' substituents on the NPN ligand have been investigated as precatalysts in acetophenone transfer hydrogenation in basic and base-free isopropanol. The results clearly demonstrate the presence of two distinct reaction mechanisms, which are controlled by the basicity of the N-atoms. Complexes 1 in which both R' substituents are aryl groups are only active once the neutral hydride complex [(Arene)RuH{R2P(NR')2}] (2) is generated in basic isopropanol, the latter being able to reduce a ketone via a stepwise hydride and proton transfer. On the other hand, complexes in which at least one R' group is Me readily catalyze the reaction in the absence of base. In the latter case, the results of kinetic studies and DFT calculations support an outer-sphere concerted asynchronous hydride and proton transfer assisted by the basic N-atom of the NPN ligand, which promotes catalysis via precoordination of an alcohol molecule by hydrogen bonding.
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Affiliation(s)
- Alexander M Kalsin
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov str., 119991 Moscow, Russia
| | - Tatyana A Peganova
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov str., 119991 Moscow, Russia
| | - Iana S Sinopalnikova
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov str., 119991 Moscow, Russia and CNRS, Laboratoire de Chimie de Coordination, Université de Toulouse, UPS, INPT, 205 Route de Narbonne, 31077 Toulouse Cedex 4, France.
| | - Ivan V Fedyanin
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov str., 119991 Moscow, Russia
| | - Natalia V Belkova
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov str., 119991 Moscow, Russia
| | - Eric Deydier
- CNRS, Laboratoire de Chimie de Coordination, Université de Toulouse, UPS, INPT, 205 Route de Narbonne, 31077 Toulouse Cedex 4, France.
| | - Rinaldo Poli
- CNRS, Laboratoire de Chimie de Coordination, Université de Toulouse, UPS, INPT, 205 Route de Narbonne, 31077 Toulouse Cedex 4, France. and Institut Universitaire de France, 1, rue Descartes, 75231 Paris Cedex 05, France
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10
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Karmakar J, Bhattacharya S. Arene-ruthenium complexes with 2-(arylazo)phenol as ancillary ligand: Synthesis, characterization, and utilization in catalytic transfer-hydrogenation. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.02.046] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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11
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Illam PM, Donthireddy SNR, Chakrabartty S, Rit A. Heteroditopic Ru(II)– and Ir(III)–NHC Complexes with Pendant 1,2,3-Triazole/Triazolylidene Groups: Stereoelectronic Impact on Transfer Hydrogenation of Unsaturated Compounds. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00156] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - S. N. R. Donthireddy
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Sayantan Chakrabartty
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Arnab Rit
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
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12
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Bauri S, Donthireddy SNR, Illam PM, Rit A. Effect of Ancillary Ligand in Cyclometalated Ru(II)-NHC-Catalyzed Transfer Hydrogenation of Unsaturated Compounds. Inorg Chem 2018; 57:14582-14593. [PMID: 30421610 DOI: 10.1021/acs.inorgchem.8b02246] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In an effort to develop efficient Ru(II)-NHC-based catalyst considering their stereoelectronic effect for hydride-transfer reaction, we found that the ancillary NHC ligand can play a significant role in its catalytic performance. This effect is demonstrated by comparing the activity of two different types of orthometalated precatalysts of general formula [( p-cymene)(NHC)RuII(X)] (NHC = an imidazolylidene-based ImNHC, compound 2a-c, or a mesoionic triazolylidene-based tzNHC, compound 4) in transfer hydrogenation of carbonyl substrates. The electron-rich precatalyst, 2c, containing p-OMe-substituted NHC ligand performed significantly better than both unsubstituted complex 2a and p-CF3 substituted electron-poor complex 2b in ketone reduction. Whereas bulky mesoionic triazolylidene ligand containing complex 4 was found to be superior catalyst for aldehyde reduction and the precatalyst 2a is more suitable for the selective transfer hydrogenation of a wide range of aromatic aldimines to amines. To the best of our knowledge, this is the first systematic study on the effect of stereoelectronic tuning of ancillary orthometalated NHC ligand in Ru(II)-catalyzed transfer hydrogenations of various types of unsaturated compounds with broad substrate scope.
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Affiliation(s)
- Somnath Bauri
- Department of Chemistry , Indian Institute of Technology Madras , Chennai 600036 , India
| | - S N R Donthireddy
- Department of Chemistry , Indian Institute of Technology Madras , Chennai 600036 , India
| | | | - Arnab Rit
- Department of Chemistry , Indian Institute of Technology Madras , Chennai 600036 , India
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13
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Hey DA, Reich RM, Baratta W, Kühn FE. Current advances on ruthenium(II) N-heterocyclic carbenes in hydrogenation reactions. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.06.005] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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14
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Temperature-dependent elongation of the H H bond in dihydrogen complexes of Ru(II) bearing an NHC ligand: Effect of the NHC and trans ligands. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.08.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Akkoç M, Öz E, Demirel S, Dorcet V, Roisnel T, Bayri A, Bruneau C, Altin S, Yaşar S, Özdemir İ. Investigation of potential hybrid capacitor property of chelated N-Heterocyclic carbene Ruthenium(II) complex. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.04.035] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Wan KY, Roelfes F, Lough AJ, Hahn FE, Morris RH. Iridium and Rhodium Complexes Containing Enantiopure Primary Amine-Tethered N-Heterocyclic Carbenes: Synthesis, Characterization, Reactivity, and Catalytic Asymmetric Hydrogenation of Ketones. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00915] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kai Y. Wan
- Department
of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada
| | - Florian Roelfes
- Institut
für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| | - Alan J. Lough
- Department
of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada
| | - F. Ekkehardt Hahn
- Institut
für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| | - Robert H. Morris
- Department
of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada
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17
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Selective Base-free Transfer Hydrogenation of α,β-Unsaturated Carbonyl Compounds using i
PrOH or EtOH as Hydrogen Source. Chemistry 2018; 24:2725-2734. [DOI: 10.1002/chem.201705423] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Indexed: 11/07/2022]
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18
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Wan KY, Sung MMH, Lough AJ, Morris RH. Half-Sandwich Ruthenium Catalyst Bearing an Enantiopure Primary Amine Tethered to an N-Heterocyclic Carbene for Ketone Hydrogenation. ACS Catal 2017. [DOI: 10.1021/acscatal.7b02346] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Kai Y. Wan
- Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada
| | - Molly M. H. Sung
- Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada
| | - Alan J. Lough
- Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada
| | - Robert H. Morris
- Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada
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19
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Singh C, Gangwar MK, Ghosh P. Mass spectrometric support for a bifunctional catalysis mechanism for the base-free Michael addition by a nickel N-heterocyclic carbene complex: Detection of the catalytic intermediates. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.06.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Pape F, Teichert JF. Dealing at Arm's Length: Catalysis with N-Heterocyclic Carbene Ligands Bearing Anionic Tethers. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700124] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Felix Pape
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 115 10623 Berlin Germany
| | - Johannes F. Teichert
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 115 10623 Berlin Germany
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21
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Ruiz J, Sol D, Van der Maelen JF, Vivanco M. Base-Promoted Transmetalation Reactions of Protic N-Heterocyclic Carbenes and Acyclic Diamino Carbenes from MnI to AuI: A Mechanistic Study. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00009] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Javier Ruiz
- Departamento de Química Orgánica e
Inorgánica and ‡Departamento
de Química Física y Analítica, Facultad
de Química, Universidad de Oviedo, E-33006 Oviedo, Spain
| | - Daniel Sol
- Departamento de Química Orgánica e
Inorgánica and ‡Departamento
de Química Física y Analítica, Facultad
de Química, Universidad de Oviedo, E-33006 Oviedo, Spain
| | - Juan F. Van der Maelen
- Departamento de Química Orgánica e
Inorgánica and ‡Departamento
de Química Física y Analítica, Facultad
de Química, Universidad de Oviedo, E-33006 Oviedo, Spain
| | - Marilín Vivanco
- Departamento de Química Orgánica e
Inorgánica and ‡Departamento
de Química Física y Analítica, Facultad
de Química, Universidad de Oviedo, E-33006 Oviedo, Spain
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22
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Shee S, Paul B, Kundu S. Counter Anion Controlled Reactivity Switch in Transfer Hydrogenation: A Case Study between Ketones and Nitroarenes. ChemistrySelect 2017. [DOI: 10.1002/slct.201601929] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sujan Shee
- Department of Chemistry, IIT Kanpur; Kanpur- 208016, UP India
| | - Bhaskar Paul
- Department of Chemistry, IIT Kanpur; Kanpur- 208016, UP India
| | - Sabuj Kundu
- Department of Chemistry, IIT Kanpur; Kanpur- 208016, UP India
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Abstract
It is well-recognized that N-heterocyclic carbene (NHC) ligands have provided a new dimension to the design of homogeneous catalysts. Part of the success of this type of ligands resides in the limitless access to a variety of topologies with tuned electronic properties, but also in the ability of a family of NHCs that are able to adapt their properties to the specific requirements of individual catalytic transformations. The term "smart" is used here to refer to switchable, multifunctional, adaptable, or tunable ligands and, in general, to all those ligands that are able to modify their steric or electronic properties to fulfill the requirements of a defined catalytic reaction. The purpose of this review is to comprehensively describe all types of smart NHC ligands by focusing attention on the catalytically relevant ligand-based reactivity.
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Affiliation(s)
- Eduardo Peris
- Institute of Advanced Materials , Universitat Jaume I , Avenida Vicente Sos Baynat s/n , Castellón E-12071 , Spain
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24
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Chen C, Ni S, Zheng Q, Yu M, Wang H. Synthesis, Structure, Biological Evaluation, and Catalysis of Two Pyrazole-Functionalized NHC-RuIIComplexes. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201601116] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Chao Chen
- College of Life Sciences; Huzhou University; East 2nd Road 313000 Huzhou China
| | - Shengliang Ni
- College of Life Sciences; Huzhou University; East 2nd Road 313000 Huzhou China
| | - Qing Zheng
- College of Life Sciences; Huzhou University; East 2nd Road 313000 Huzhou China
| | - Meifang Yu
- College of Life Sciences; Huzhou University; East 2nd Road 313000 Huzhou China
| | - Hangxiang Wang
- The First Affiliated Hospital; School of Medicine; Zhejiang University; 310003 Hangzhou China
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25
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Waldie KM, Flajslik KR, McLoughlin E, Chidsey CED, Waymouth RM. Electrocatalytic Alcohol Oxidation with Ruthenium Transfer Hydrogenation Catalysts. J Am Chem Soc 2017; 139:738-748. [DOI: 10.1021/jacs.6b09705] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Kate M. Waldie
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Kristen R. Flajslik
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Elizabeth McLoughlin
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | | | - Robert M. Waymouth
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
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26
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Strydom I, Guisado-Barrios G, Fernández I, Liles DC, Peris E, Bezuidenhout DI. A Hemilabile and Cooperative N-Donor-Functionalized 1,2,3-Triazol-5-Ylidene Ligand for Alkyne Hydrothiolation Reactions. Chemistry 2016; 23:1393-1401. [DOI: 10.1002/chem.201604567] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Indexed: 01/17/2023]
Affiliation(s)
- Ian Strydom
- Chemistry Department; University of Pretoria; Private Bag X20 Hatfield 0028, Pretoria South Africa
| | - Gregorio Guisado-Barrios
- Institute of Advanced Materials (INAM); Universitat Jaume I; Avenida Vicente Sos Baynat s/n 12071 Castellon Spain
| | - Israel Fernández
- Departamento de Química Orgánica I; Facultad de Ciencias Químicas; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - David C. Liles
- Chemistry Department; University of Pretoria; Private Bag X20 Hatfield 0028, Pretoria South Africa
| | - Eduardo Peris
- Institute of Advanced Materials (INAM); Universitat Jaume I; Avenida Vicente Sos Baynat s/n 12071 Castellon Spain
| | - Daniela I. Bezuidenhout
- Chemistry Department; University of Pretoria; Private Bag X20 Hatfield 0028, Pretoria South Africa
- Molecular Sciences Institute; School of Chemistry; University of the Witwatersrand; Johannesburg 2050 South Africa
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27
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Ibáñez S, Poyatos M, Peris E. A Ferrocenyl-Benzo-Fused Imidazolylidene Complex of Ruthenium as Redox-Switchable Catalyst for the Transfer Hydrogenation of Ketones and Imines. ChemCatChem 2016. [DOI: 10.1002/cctc.201601025] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Susana Ibáñez
- Institute of Advanced Materials (INAM); Universitat Jaume I, Avda. Sos Baynat.; E-12071- Castellón Spain
| | - Macarena Poyatos
- Institute of Advanced Materials (INAM); Universitat Jaume I, Avda. Sos Baynat.; E-12071- Castellón Spain
| | - Eduardo Peris
- Institute of Advanced Materials (INAM); Universitat Jaume I, Avda. Sos Baynat.; E-12071- Castellón Spain
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28
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Hollering M, Albrecht M, Kühn FE. Bonding and Catalytic Application of Ruthenium N-Heterocyclic Carbene Complexes Featuring Triazole, Triazolylidene, and Imidazolylidene Ligands. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00504] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Manuela Hollering
- Department of Chemistry & Catalysis Research Center, Molecular Catalysis, Technische Universität München, Lichtenbergstraße 4, D-85747 Garching bei München, Germany
- SC
XRD Laboratory, Catalysis Research Center, Technische Universität München, Ernst-Otto-Fischer-Straße 1, 85747 Garching bei München, Germany
| | - Martin Albrecht
- Department of Chemistry & Biochemistry, Universität Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
| | - Fritz E. Kühn
- Department of Chemistry & Catalysis Research Center, Molecular Catalysis, Technische Universität München, Lichtenbergstraße 4, D-85747 Garching bei München, Germany
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29
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Morris RH. Iron Group Hydrides in Noyori Bifunctional Catalysis. CHEM REC 2016; 16:2640-2654. [DOI: 10.1002/tcr.201600080] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Robert H. Morris
- Department of Chemistry; University of Toronto; 80 Saint George Street Toronto, Ontario M5S3H6 Canada
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30
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Hou C, Zhang Z, Zhao C, Ke Z. DFT Study of Acceptorless Alcohol Dehydrogenation Mediated by Ruthenium Pincer Complexes: Ligand Tautomerization Governing Metal Ligand Cooperation. Inorg Chem 2016; 55:6539-51. [DOI: 10.1021/acs.inorgchem.6b00723] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Cheng Hou
- MOE Key Laboratory of Bioinorganic
and Synthetic Chemistry, School of Chemistry and Chemical Engineering,
School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, P. R. China
| | - Zhihan Zhang
- MOE Key Laboratory of Bioinorganic
and Synthetic Chemistry, School of Chemistry and Chemical Engineering,
School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, P. R. China
| | - Cunyuan Zhao
- MOE Key Laboratory of Bioinorganic
and Synthetic Chemistry, School of Chemistry and Chemical Engineering,
School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, P. R. China
| | - Zhuofeng Ke
- MOE Key Laboratory of Bioinorganic
and Synthetic Chemistry, School of Chemistry and Chemical Engineering,
School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, P. R. China
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31
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Ramasamy B, Ghosh P. The Developing Concept of Bifunctional Catalysis with Transition Metal N-Heterocyclic Carbene Complexes. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201501429] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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32
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33
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Khusnutdinova JR, Milstein D. Metal-Ligand Cooperation. Angew Chem Int Ed Engl 2015; 54:12236-73. [DOI: 10.1002/anie.201503873] [Citation(s) in RCA: 783] [Impact Index Per Article: 87.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Indexed: 12/25/2022]
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34
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Ruthenium and osmium complexes containing 2-(aminomethyl)pyridine (Ampy)-based ligands in catalysis. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2015.04.007] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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35
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Martínez‐Olid F, Andrés R, Flores JC, Gómez‐Sal P. Trimetallic PEPPSI‐Type Palladium N‐Heterocyclic Carbene Complexes – Improved Catalyst Lifetime in the Mizoroki–Heck Coupling Reaction. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500542] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Francisco Martínez‐Olid
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá, Campus Universitario, 28871 Alcalá de Henares, Madrid, Spain
| | - Román Andrés
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá, Campus Universitario, 28871 Alcalá de Henares, Madrid, Spain
| | - Juan C. Flores
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá, Campus Universitario, 28871 Alcalá de Henares, Madrid, Spain
| | - Pilar Gómez‐Sal
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá, Campus Universitario, 28871 Alcalá de Henares, Madrid, Spain
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36
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Nakatsuka H, Yamamura T, Shuto Y, Tanaka S, Yoshimura M, Kitamura M. Mechanism of Asymmetric Hydrogenation of Aromatic Ketones Catalyzed by a Combined System of Ru(π-CH2C(CH3)CH2)2(cod) and the Chiral sp(2)N/sp(3)NH Hybrid Linear N4 Ligand Ph-BINAN-H-Py. J Am Chem Soc 2015; 137:8138-49. [PMID: 26046693 DOI: 10.1021/jacs.5b02350] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The combination of a Goodwin-Lions-type chiral N4 ligand, (R)-Ph-BINAN-H-Py ((R)-3,3'-diphenyl-N(2),N(2')-bis((pyridin-2-yl)methyl)-1,1'-binaphthyl-2,2'-diamine; L), with Ru(π-CH2C(CH3)CH2)2(cod) (A) (cod = 1,5-cyclooctadiene) catalyzes the hydrogenation of acetophenone (AP) to (R)-1-phenylethanol (PE) with a high enantiomer ratio (er). Almost no Ru complex forms, with A and L remaining intact throughout the reaction while generating PE quantitatively according to [PE] = k(obs)t(2). An infinitesimal amount of reactive and unstable RuH2L (B) with C2-Λ-cis-α stereochemistry is very slowly and irreversibly generated from A by the action of H2 and L, which rapidly catalyzes the hydrogenation of AP via Noyori's donor-acceptor bifunctional mechanism. A CH-π-stabilized Si-face selective transition state, CSi, gives (R)-PE together with an intermediary Ru amide, D, which is inhibited predominantly by formation of the Ru enolate of AP. The rate-determining hydrogenolysis of D completes the cycle. The time-squared term relates both to the preliminary step before the cycle and to the cycle itself, with a highly unusual eight-order difference in the generation and turnover frequency of B. This mechanism is fully supported by a series of experiments including a detailed kinetic study, rate law analysis, simulation of t/[PE] curves with fitting to the experimental observations at the initial reaction stage, X-ray crystallographic analyses of B-related octahedral metal complexes, and Hammett plot analyses of electronically different substrates and ligands in their enantioselectivities.
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Affiliation(s)
- Hiroshi Nakatsuka
- †Graduate School of Pharmaceutical Sciences, Graduate School of Science, and Research Center for Materials Science, Nagoya University, Chikusa, Nagoya 464-8601, Japan
| | - Tomoya Yamamura
- †Graduate School of Pharmaceutical Sciences, Graduate School of Science, and Research Center for Materials Science, Nagoya University, Chikusa, Nagoya 464-8601, Japan
| | - Yoshihiro Shuto
- †Graduate School of Pharmaceutical Sciences, Graduate School of Science, and Research Center for Materials Science, Nagoya University, Chikusa, Nagoya 464-8601, Japan
| | - Shinji Tanaka
- †Graduate School of Pharmaceutical Sciences, Graduate School of Science, and Research Center for Materials Science, Nagoya University, Chikusa, Nagoya 464-8601, Japan
| | - Masahiro Yoshimura
- ‡Division of Liberal Arts and Sciences, Aichi Gakuin University, Iwasaki, Nisshin 470-0195, Japan
| | - Masato Kitamura
- †Graduate School of Pharmaceutical Sciences, Graduate School of Science, and Research Center for Materials Science, Nagoya University, Chikusa, Nagoya 464-8601, Japan
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37
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Affiliation(s)
- Dong Wang
- ISM, Université de Bordeaux, 351 Cours de la Libération, 33405 Talence Cedex, France
| | - Didier Astruc
- ISM, Université de Bordeaux, 351 Cours de la Libération, 33405 Talence Cedex, France
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38
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Jahnke MC, Hahn FE. Complexes with protic (NH,NH and NH,NR) N-heterocyclic carbene ligands. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2015.01.014] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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39
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Coverdale JPC, Sanchez-Cano C, Clarkson GJ, Soni R, Wills M, Sadler PJ. Easy To Synthesize, Robust Organo-osmium Asymmetric Transfer Hydrogenation Catalysts. Chemistry 2015; 21:8043-6. [PMID: 25853228 PMCID: PMC4832837 DOI: 10.1002/chem.201500534] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Indexed: 11/07/2022]
Abstract
Asymmetric transfer hydrogenation (ATH) is an important process in organic synthesis for which the Noyori-type Ru(II) catalysts [(arene)Ru(Tsdiamine)] are now well established and widely used. We now demonstrate for the first time the catalytic activity of the osmium analogues. X-ray crystal structures of the 16-electron Os(II) catalysts are almost identical to those of Ru(II). Intriguingly the precursor complex was isolated as a dichlorido complex with a monodentate amine ligand. The Os(II) catalysts are readily synthesised (within 1 h) and exhibit excellent enantioselectivity in ATH reactions of ketones.
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Affiliation(s)
| | | | - Guy J Clarkson
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL (UK)
| | - Rina Soni
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL (UK)
| | - Martin Wills
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL (UK).
| | - Peter J Sadler
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL (UK).
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40
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Jahnke MC, Hahn FE. Complexes Bearing Protic N-Heterocyclic Carbenes: Synthesis and Applications. CHEM LETT 2015. [DOI: 10.1246/cl.141052] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Mareike C. Jahnke
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster
| | - F. Ekkehardt Hahn
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster
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41
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Synthesis, coordination chemistry and reactivity of transition metal complexes supported by a chelating benzimidazolylidene carboxylate ligand. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2014.11.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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42
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Menéndez-Pedregal E, Vaquero M, Lastra E, Gamasa P, Pizzano A. Highly Enantioselective Hydrogenation ofN-Aryl Imines Derived from Acetophenones by Using Ru-Pybox Complexes under Hydrogenation or Transfer Hydrogenation Conditions in Isopropanol. Chemistry 2014; 21:549-53. [DOI: 10.1002/chem.201405276] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Indexed: 11/10/2022]
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43
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Delgado-Rebollo M, Canseco-Gonzalez D, Hollering M, Mueller-Bunz H, Albrecht M. Synthesis and catalytic alcohol oxidation and ketone transfer hydrogenation activity of donor-functionalized mesoionic triazolylidene ruthenium(II) complexes. Dalton Trans 2014; 43:4462-73. [PMID: 24336900 DOI: 10.1039/c3dt53052c] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report on the synthesis of a variety of C,E-bidentate triazolylidene ruthenium complexes that comprise different donor substituents E (E = C: phenyl anion; E = O: carboxylate, alkoxide; E = N: pyridine at heterocyclic carbon or nitrogen). Introduction of these donor functionalities is greatly facilitated by the synthetic versatility of triazoles, and their facile preparation routes. Five different complexes featuring a C,E-coordinated ruthenium center with chloride/cymene spectator ligands and three analogous solvento complexes with MeCN spectator ligands were prepared and evaluated as catalyst precursors for direct base- and oxidant-free alcohol dehydrogenation, and for transfer hydrogenation using basic iPrOH as a source of dihydrogen. In both catalytic reactions, the neutral/mono-cationic complexes with chloride/cymene spectator ligands performed better than the solvento ruthenium complexes. The donor functionality had a further profound impact on catalytic activity. For alcohol dehydrogenation, the C,C-bidentate phenyl-triazolylidene ligand induced highest conversions, while carboxylate or pyridine donor sites gave only moderate activity or none at all. In contrast, transfer hydrogenation is most efficient when a pyridyl donor group is linked to the triazolylidene via the heterocyclic carbon atom, providing turnover frequencies as high as 1400 h(-1) for cyclohexanone transfer hydrogenation. The role of the donor group is discussed in mechanistic terms.
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Affiliation(s)
- Manuela Delgado-Rebollo
- School of Chemistry & Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland.
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44
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Baratta W, Baldino S, Calhorda MJ, Costa PJ, Esposito G, Herdtweck E, Magnolia S, Mealli C, Messaoudi A, Mason SA, Veiros LF. CNN Pincer Ruthenium Catalysts for Hydrogenation and Transfer Hydrogenation of Ketones: Experimental and Computational Studies. Chemistry 2014; 20:13603-17. [DOI: 10.1002/chem.201402229] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Walter Baratta
- Dipartimento di Chimica, Fisica e Ambiente, Università di Udine, Via Cotonificio 108, 33100 Udine (Italy), Fax: (+39) 0432‐558803
| | - Salvatore Baldino
- Dipartimento di Chimica, Fisica e Ambiente, Università di Udine, Via Cotonificio 108, 33100 Udine (Italy), Fax: (+39) 0432‐558803
| | - Maria José Calhorda
- Departamento de Química e Bioquímica, CQB, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749‐016 Lisboa (Portugal)
| | - Paulo J. Costa
- Departamento de Química, QOPNA and Secção Autónoma de Ciências da Saúde Universidade de Aveiro, 3810‐193 Aveiro (Portugal)
| | - Gennaro Esposito
- Dipartimento di Scienze Mediche e Biologiche, Università di Udine, P.le Kolbe 4, I‐33100 Udine (Italy)
- Current Address: Science & Math Division, New York University Abu Dhabi, Abu Dhabi (UAE)
| | - Eberhardt Herdtweck
- Anorganisch‐chemisches Institut, Technische Universität München, Lichtenbergstrasse 4, D‐85747 Garching (Germany)
| | - Santo Magnolia
- Dipartimento di Chimica, Fisica e Ambiente, Università di Udine, Via Cotonificio 108, 33100 Udine (Italy), Fax: (+39) 0432‐558803
| | - Carlo Mealli
- Istituto di Chimica dei Composti, Organometallici (ICCOM‐CNR), Via Madonna del Piano, I‐50019 Sesto Fiorentino (Italy)
| | - Abdelatif Messaoudi
- Istituto di Chimica dei Composti, Organometallici (ICCOM‐CNR), Via Madonna del Piano, I‐50019 Sesto Fiorentino (Italy)
| | - Sax A. Mason
- Institut Max von Laue ‐ Paul Langevin, 6, Rue Jules Horowitz, BP 156, 38042, Grenoble Cedex 9 (France)
| | - Luis F. Veiros
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049‐001 Lisboa (Portugal)
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45
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Nova A, Taylor DJ, Blacker AJ, Duckett SB, Perutz RN, Eisenstein O. Computational Studies Explain the Importance of Two Different Substituents on the Chelating Bis(amido) Ligand for Transfer Hydrogenation by Bifunctional Cp*Rh(III) Catalysts. Organometallics 2014. [DOI: 10.1021/om500356e] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ainara Nova
- Institut
Charles Gerhardt, UMR 5253 CNRS-UM2, cc 1501, Université Montpellier 2, Place Eugène Bataillon, 34095 Montpellier, France
- Centre
for Theoretical and Computational Chemistry (CTCC), Department of
Chemistry, University of Oslo, P.O. Box 1033, Blindern, 0315 Oslo, Norway
| | - David J. Taylor
- Department
of Chemistry, The University of York, Heslington, York, U.K. YO10 5DD
| | - A. John Blacker
- School
of Chemistry, University of Leeds, Leeds, U.K. LS2 9JT
| | - Simon B. Duckett
- Department
of Chemistry, The University of York, Heslington, York, U.K. YO10 5DD
| | - Robin N. Perutz
- Department
of Chemistry, The University of York, Heslington, York, U.K. YO10 5DD
| | - Odile Eisenstein
- Institut
Charles Gerhardt, UMR 5253 CNRS-UM2, cc 1501, Université Montpellier 2, Place Eugène Bataillon, 34095 Montpellier, France
- Centre
for Theoretical and Computational Chemistry (CTCC), Department of
Chemistry, University of Oslo, P.O. Box 1033, Blindern, 0315 Oslo, Norway
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46
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Zuo W, Tauer S, Prokopchuk DE, Morris RH. Iron Catalysts Containing Amine(imine)diphosphine P-NH-N-P Ligands Catalyze both the Asymmetric Hydrogenation and Asymmetric Transfer Hydrogenation of Ketones. Organometallics 2014. [DOI: 10.1021/om500479q] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Weiwei Zuo
- Department of Chemistry, University of Toronto, 80 Saint
George St., Toronto, Ontario M5S3H6, Canada
| | - Sebastian Tauer
- Department of Chemistry, University of Toronto, 80 Saint
George St., Toronto, Ontario M5S3H6, Canada
| | - Demyan E. Prokopchuk
- Department of Chemistry, University of Toronto, 80 Saint
George St., Toronto, Ontario M5S3H6, Canada
| | - Robert H. Morris
- Department of Chemistry, University of Toronto, 80 Saint
George St., Toronto, Ontario M5S3H6, Canada
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47
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Turek J, Panov I, Horáček M, Černošek Z, Padělková Z, Růžička A. Amino Group Functionalized N-Heterocyclic 1,2,4-Triazole-Derived Carbenes: Structural Diversity of Rhodium(I) Complexes. Organometallics 2013. [DOI: 10.1021/om400912s] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jan Turek
- Department of General
and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10 Pardubice, Czech Republic
| | - Illia Panov
- Institute of Organic Chemistry and Technology,
Faculty of Chemical Technology, University of Pardubice, Studentská
573, CZ-532 10 Pardubice, Czech Republic
| | - Michal Horáček
- J. Heyrovský
Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Dolejškova 3, 182 23 Prague, Czech Republic
| | - Zdeněk Černošek
- Department of General
and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10 Pardubice, Czech Republic
| | - Zdeňka Padělková
- Department of General
and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10 Pardubice, Czech Republic
| | - Aleš Růžička
- Department of General
and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10 Pardubice, Czech Republic
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48
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Jansen E, Jongbloed LS, Tromp DS, Lutz M, de Bruin B, Elsevier CJ. Ligand effects on the hydrogenation of biomass-inspired substrates with bifunctional Ru, Ir, and Rh complexes. CHEMSUSCHEM 2013; 6:1737-1744. [PMID: 24078180 DOI: 10.1002/cssc.201300363] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Revised: 06/21/2013] [Indexed: 06/02/2023]
Abstract
We herein report on the application and structural investigation of a new set of complexes that contain bidentate N-heterocyclic carbenes (NHCs) and primary amine moieties of the type [M(arene)Cl(L)] [M=Ru, Ir, or Rh; arene=p-cymene or pentamethylcyclopentadienyl; L=1-(2-aminophenyl)-3-(n-alkyl)imidazol-2-ylidine]. These complexes were tested and compared in the hydrogenation of acetophenone with hydrogen. Structural variations in the chelate ring size of the heteroditopic ligand revealed that smaller chelate ring sizes in combination with ring conjugation in the ligand are beneficial for the activity of this type of catalyst, favoring an inner-sphere coordination pathway. Additionally, increasing the steric bulk of the alkyl substituent on the NHC aided the reaction, showing almost no induction period and formation of a more active catalyst for the n-butyl complex relative to complexes with smaller Me and Et substituents. As is common in hydrogenation reactions, the activity of the complexes decreases in the order Ru>Ir>Rh. The application of [Ru(p-cym)Cl(L)]PF6 , which outperforms its reported analogues, has been successfully extended to the hydrogenation of more challenging biomass-inspired substrates.
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Affiliation(s)
- Eveline Jansen
- van 't Hoff Institute for Molecular Chemistry, University of Amsterdam, Science Park 904, 1098 XH Amsterdam (The Netherlands)
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49
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Witt J, Pöthig A, Kühn FE, Baratta W. Abnormal N-Heterocyclic Carbene-Phosphine Ruthenium(II) Complexes as Active Catalysts for Transfer Hydrogenation. Organometallics 2013. [DOI: 10.1021/om400400w] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Julia Witt
- Inorganic Chemistry/Molecular
Catalysis, Catalysis Research Center, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85747
Garching b. München, Germany
| | - Alexander Pöthig
- Inorganic Chemistry/Molecular
Catalysis, Catalysis Research Center, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85747
Garching b. München, Germany
| | - Fritz E. Kühn
- Inorganic Chemistry/Molecular
Catalysis, Catalysis Research Center, Technische Universität München, Ernst-Otto-Fischer-Straße 1, D-85747
Garching b. München, Germany
| | - Walter Baratta
- Dipartimento di Chimica, Fisica
e Ambiente, Università di Udine,
Via Cotonificio 108, I-33100 Udine, Italy
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50
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O WWN, Lough AJ, Morris RH. Primary Amine Functionalized N-Heterocyclic Carbene Complexes of Iridium: Synthesis, Structure, and Catalysis. Organometallics 2013. [DOI: 10.1021/om400180h] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wylie W. N. O
- Davenport Laboratory, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S
3H6, Canada
| | - Alan J. Lough
- Davenport Laboratory, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S
3H6, Canada
| | - Robert H. Morris
- Davenport Laboratory, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S
3H6, Canada
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