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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Mayr J, Reich RM, Kühn FE. Ru(II) complexes with phosphine-functionalized NHC ligands in catalytic transfer hydrogenations. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2023. [DOI: 10.1016/bs.adomc.2022.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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3
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Karakaş H, Güzel M, Ak M, Kılınçarslan R, Özdemir N. N,S-heterocyclic carbene containing benzothiazol-2-ylidene-Ru(II) and Pd(II) new complexes functionalized with butyl linked carbazole moiety: Synthesis, characterization and their catalytic efficiency and electropolymerizations. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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4
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Zhang J, Li X, Li T, Zhang G, Wan K, Ma Y, Fang R, Szostak R, Szostak M. Copper(I)–Thiazol-2-ylidenes: Highly Reactive N-Heterocyclic Carbenes for the Hydroboration of Terminal and Internal Alkynes. Ligand Development, Synthetic Utility, and Mechanistic Studies. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Affiliation(s)
- Jin Zhang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an710021, China
| | - Xue Li
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an710021, China
| | - Tao Li
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an710021, China
| | - Gaopeng Zhang
- Kaili Catalyst & New Materials Co., Limited, Xi’an710299, China
| | - Kerou Wan
- Kaili Catalyst & New Materials Co., Limited, Xi’an710299, China
| | - Yangmin Ma
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an710021, China
| | - Ran Fang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an710021, China
| | - Roman Szostak
- Department of Chemistry, Wroclaw University, F. Joliot-Curie 14, Wroclaw50-383, Poland
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey07102, United States
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5
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Thiazol-2-ylidenes as N-Heterocyclic carbene ligands with enhanced electrophilicity for transition metal catalysis. Commun Chem 2022; 5:60. [PMID: 36697942 PMCID: PMC9814509 DOI: 10.1038/s42004-022-00675-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 04/21/2022] [Indexed: 01/28/2023] Open
Abstract
Over the last 20 years, N-heterocyclic carbenes (NHCs) have emerged as a dominant direction in ligand development in transition metal catalysis. In particular, strong σ-donation in combination with tunable steric environment make NHCs to be among the most common ligands used for C-C and C-heteroatom bond formation. Herein, we report the study on steric and electronic properties of thiazol-2-ylidenes. We demonstrate that the thiazole heterocycle and enhanced π-electrophilicity result in a class of highly active carbene ligands for electrophilic cyclization reactions to form valuable oxazoline heterocycles. The evaluation of steric, electron-donating and π-accepting properties as well as structural characterization and coordination chemistry is presented. This mode of catalysis can be applied to late-stage drug functionalization to furnish attractive building blocks for medicinal chemistry. Considering the key role of N-heterocyclic ligands, we anticipate that N-aryl thiazol-2-ylidenes will be of broad interest as ligands in modern chemical synthesis.
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6
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Yadav S, Vijayan P, Yadav S, Gupta R. Ruthenium complexes of phosphine-amide based ligands as efficient catalysts for transfer hydrogenation reactions. Dalton Trans 2021; 50:3269-3279. [PMID: 33587074 DOI: 10.1039/d0dt04401f] [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 work presents three mononuclear Ru(ii) complexes of tridentate phosphine-carboxamide based ligands providing a NNP coordination environment. The octahedral Ru(ii) ion shows additional coordination with co-ligands; CO, Cl and CH3OH. All three Ru(ii) complexes were thoroughly characterized including their crystal structures. These Ru(ii) complexes were utilized as catalysts for the transfer hydrogenation of assorted carbonyl compounds, including some challenging biologically relevant substrates, using isopropanol as the hydrogen source. The binding studies illustrated the coordination of the isopropoxide ion by replacing a Ru-ligated chloride ion followed by the generation of the Ru-H intermediate that was isolated and characterized and was found to be involved in the catalysis.
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Affiliation(s)
- Samanta Yadav
- Department of Chemistry, University of Delhi, Delhi - 110 007, India.
| | | | - Sunil Yadav
- Department of Chemistry, University of Delhi, Delhi - 110 007, India.
| | - Rajeev Gupta
- Department of Chemistry, University of Delhi, Delhi - 110 007, India.
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7
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8
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Oswal P, Arora A, Singh S, Nautiyal D, Kumar S, Rao GK, Kumar A. Organochalcogen ligands in catalysis of oxidation of alcohols and transfer hydrogenation. Dalton Trans 2020; 49:12503-12529. [PMID: 32804180 DOI: 10.1039/d0dt01201g] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Organochalcogen compounds have been used as the building blocks for the development of a variety of catalysts that have been studied comprehensively during the last two decades for several chemical transformations. Transfer hydrogenation (reduction of carbonyl compounds to alcohols) and oxidation of alcohols (conversion of alcohols to their respective ketones and aldehydes) are also among such chemical transformations. Some compilations are available in the literature on the development of catalysts, based on organochalcogen ligands, and their applications in Heck reaction, Suzuki reaction, and other related aspects. Some review articles have also been published on different aspects of oxidation of alcohols and transfer hydrogenation. However, no such article is available in the literature on the syntheses and use of organochalcogen ligated catalysts for these two reactions. In this perspective, a survey of developments pertaining to the synthetic aspects of such organochalcogen (S/Se/Te) based catalysts for the two reactions has been made. In addition to covering the syntheses of chalcogen ligands, their metal complexes and nanoparticles (NPs), emphasis has also been placed on the efficient conversion of different substrates during catalytic reactions, diversity in catalytic potential and mechanistic aspects of catalysis. It also includes the analysis of comparison (in terms of efficiency) between this unique class of catalysts and efficient catalysts without a chalcogen donor. The future scope of this area has also been highlighted.
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Affiliation(s)
- Preeti Oswal
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, 248012, India.
| | - Aayushi Arora
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, 248012, India.
| | - Siddhant Singh
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, 248012, India.
| | - Divyanshu Nautiyal
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, 248012, India.
| | - Sushil Kumar
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, 248012, India.
| | - Gyandshwar Kumar Rao
- Department of Chemistry Biochemistry and Forensic Science, Amity School of Applied Sciences, Amity University Haryana, Gurgaon, Haryana 122413, India
| | - Arun Kumar
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, 248012, India.
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9
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Zhang L, Han YF. A macrocyclic silver polycarbene complex based on 1,2,4-triazole units: synthesis and postsynthetic modification. Dalton Trans 2018; 47:4267-4272. [DOI: 10.1039/c8dt00169c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A method for the synthesis of a new rectangular 1,2,4-triazole-containing macrocycle via photochemical [2 + 2] cycloaddition with a metal–carbene template was developed.
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Affiliation(s)
- Le Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education
- College of Chemistry and Materials Science
- FM & EM International Joint Laboratory
- Northwest University
- Xi'an 710127
| | - Ying-Feng Han
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education
- College of Chemistry and Materials Science
- FM & EM International Joint Laboratory
- Northwest University
- Xi'an 710127
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10
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Olguín J, Paz-Sandoval MÁ. Synthesis and transfer hydrogenation catalysis of chelating triazolylidene ruthenium(II) complexes: Effect of the pendant arm, p-cymene, acetonitrile and butadienesulfonyl co-ligands. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.08.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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Xia YT, Sun XT, Zhang L, Luo K, Wu L. Metal-Free Hydrogen Atom Transfer from Water: Expeditious Hydrogenation of N-Heterocycles Mediated by Diboronic Acid. Chemistry 2016; 22:17151-17155. [DOI: 10.1002/chem.201604503] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Indexed: 01/28/2023]
Affiliation(s)
- Yun-Tao Xia
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry; College of Sciences; Nanjing Agricultural University; Nanjing 210095 P. R. China
| | - Xiao-Tao Sun
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry; College of Sciences; Nanjing Agricultural University; Nanjing 210095 P. R. China
| | - Ling Zhang
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry; College of Sciences; Nanjing Agricultural University; Nanjing 210095 P. R. China
| | - Kai Luo
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry; College of Sciences; Nanjing Agricultural University; Nanjing 210095 P. R. China
| | - Lei Wu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry; College of Sciences; Nanjing Agricultural University; Nanjing 210095 P. R. China
- Beijing National Laboratory for Molecular Sciences and Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
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12
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Ng CK, Wu J, Hor TSA, Luo HK. A binary catalyst system of a cationic Ru-CNC pincer complex with an alkali metal salt for selective hydroboration of carbon dioxide. Chem Commun (Camb) 2016; 52:11842-11845. [PMID: 27711420 DOI: 10.1039/c6cc06278d] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Binary catalyst systems comprising a cationic Ru-CNC pincer complex and an alkali metal salt were developed for selective hydroboration of CO2 utilizing pinacolborane at r.t. and 1 atm CO2, with the combination of [Ru(CNCBn)(CO)2(H)][PF6] and KOCO2tBu producing formoxyborane in 76% yield. A bicyclic catalytic mechanism was proposed and discussed.
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Affiliation(s)
- Chee Koon Ng
- NUS Graduate School for Integrative Sciences and Engineering, Center for Life Sciences, #05-01, 28 Medical Drive Singapore 117456, Singapore and Institute of Materials Research and Engineering, Agency for Science, Technology and Research, #08-03, 2 Fusionopolis Way, Innovis, Singapore 138634, Singapore.
| | - Jie Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.
| | - T S Andy Hor
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research, #08-03, 2 Fusionopolis Way, Innovis, Singapore 138634, Singapore. and Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore. and Department of Chemistry, The University of Hong Kong, Pokfulam, Hong Kong SAR, China.
| | - He-Kuan Luo
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research, #08-03, 2 Fusionopolis Way, Innovis, Singapore 138634, Singapore.
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13
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Piano-stool benzothiazol-2-ylidene Ru(II) complexes for effective transfer hydrogenation of carbonyls. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.02.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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Schleicher D, Tronnier A, Leopold H, Borrmann H, Strassner T. Unusual dimer formation of cyclometalated ruthenium NHC p-cymene complexes. Dalton Trans 2016; 45:3260-3. [DOI: 10.1039/c6dt00100a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Abstraction of a chloride ion in p-cymene ruthenium(ii) complexes bearing cyclometalated NHC ligands selectively leads to the formation of mono-ion-bridged ruthenium dimers.
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Affiliation(s)
- David Schleicher
- Physikalische Organische Chemie
- Technische Universität Dresden
- 01069 Dresden
- Germany
| | - Alexander Tronnier
- Physikalische Organische Chemie
- Technische Universität Dresden
- 01069 Dresden
- Germany
| | - Hendrik Leopold
- Physikalische Organische Chemie
- Technische Universität Dresden
- 01069 Dresden
- Germany
| | - Horst Borrmann
- Max-Planck-Institut für Chemische Physik fester Stoffe
- 01187 Dresden
- Germany
| | - Thomas Strassner
- Physikalische Organische Chemie
- Technische Universität Dresden
- 01069 Dresden
- Germany
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15
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Castellanos-Blanco N, Arévalo A, García JJ. Nickel-catalyzed transfer hydrogenation of ketones using ethanol as a solvent and a hydrogen donor. Dalton Trans 2016; 45:13604-14. [DOI: 10.1039/c6dt02725c] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a nickel(0)-catalyzed direct transfer hydrogenation (TH) of a variety of alkyl–aryl, diaryl, and aliphatic ketones with ethanol.
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Affiliation(s)
- Nahury Castellanos-Blanco
- Facultad de Química
- Universidad Nacional Autónoma de México
- Circuito Interior
- Ciudad Universitaria
- Mexico City 04510
| | - Alma Arévalo
- Facultad de Química
- Universidad Nacional Autónoma de México
- Circuito Interior
- Ciudad Universitaria
- Mexico City 04510
| | - Juventino J. García
- Facultad de Química
- Universidad Nacional Autónoma de México
- Circuito Interior
- Ciudad Universitaria
- Mexico City 04510
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16
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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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17
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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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18
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Li H, Zheng B, Huang KW. A new class of PN3-pincer ligands for metal–ligand cooperative catalysis. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2014.11.010] [Citation(s) in RCA: 124] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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19
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N-Propylphthalimide-Substituted Silver(I) N-Heterocyclic Carbene Complexes and Ruthenium(II) N-Heterocyclic Carbene Complexes: Synthesis and Transfer Hydrogenation of Ketones. Catal Letters 2014. [DOI: 10.1007/s10562-014-1453-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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20
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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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21
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4-Vinylbenzyl-substituted silver(I) N-heterocyclic carbene complexes and ruthenium(II) N-heterocyclic carbene complexes: synthesis and transfer hydrogenation of ketones. TRANSIT METAL CHEM 2014. [DOI: 10.1007/s11243-014-9877-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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22
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Gutiérrez A, Gimeno MC, Marzo I, Metzler-Nolte N. Synthesis, Characterization, and Cytotoxic Activity of AuIN,S-Heterocyclic Carbenes Derived from Peptides ContainingL-Thiazolylalanine. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402103] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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23
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Han X, Weng Z, Young DJ, Jin GX, Andy Hor TS. Stoichiometric sensitivity and structural diversity in click-active copper(i) N,S-heterocyclic carbene complexes. Dalton Trans 2014; 43:1305-12. [DOI: 10.1039/c3dt52059e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Gülcemal S, Gökçe AG, Çetinkaya B. N-Benzyl Substituted N-Heterocyclic Carbene Complexes of Iridium(I): Assessment in Transfer Hydrogenation Catalyst. Inorg Chem 2013; 52:10601-9. [DOI: 10.1021/ic401626e] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Süleyman Gülcemal
- Department of Chemistry, Ege University, TR-35100, Bornova, Izmir, Turkey
| | - Aytaç Gürhan Gökçe
- Department
of Physics, Dokuz Eylul University, TR-35160, Buca, Izmir, Turkey
| | - Bekir Çetinkaya
- Department of Chemistry, Ege University, TR-35100, Bornova, Izmir, Turkey
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25
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Yoshimura M, Kamisue R, Sakaguchi S. Synthesis of Ru(II) complexes containing N-heterocyclic carbenes functionalized with secondary donor groups: Catalytic activity toward enantioselective transfer hydrogenation. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.04.028] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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26
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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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27
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28
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Lai YB, Lee CS, Lin WJ, Naziruddin AR, Hwang WS. Bis-chelate N-heterocyclic tetracarbene Ru(II) complexes: Synthesis, structure, and catalytic activity toward transfer hydrogenation of ketones. Polyhedron 2013. [DOI: 10.1016/j.poly.2013.01.042] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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29
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Naziruddin AR, Huang ZJ, Lai WC, Lin WJ, Hwang WS. Ruthenium(ii) carbonyl complexes bearing CCC-pincer bis-(carbene) ligands: synthesis, structures and activities toward recycle transfer hydrogenation reactions. Dalton Trans 2013; 42:13161-71. [DOI: 10.1039/c3dt51161h] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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30
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Fernández FE, Puerta MC, Valerga P. Ruthenium(II) Picolyl-NHC Complexes: Synthesis, Characterization, and Catalytic Activity in Amine N-alkylation and Transfer Hydrogenation Reactions. Organometallics 2012. [DOI: 10.1021/om300692a] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Francys E. Fernández
- Departamento de
Ciencia de los Materiales e Ingenierı́a Metalúrgica
y Quı́mica Inorgánica, Facultad de
Ciencias, Universidad de Cádiz,
11510 Puerto Real, Cádiz, Spain
| | - M. Carmen Puerta
- Departamento de
Ciencia de los Materiales e Ingenierı́a Metalúrgica
y Quı́mica Inorgánica, Facultad de
Ciencias, Universidad de Cádiz,
11510 Puerto Real, Cádiz, Spain
| | - Pedro Valerga
- Departamento de
Ciencia de los Materiales e Ingenierı́a Metalúrgica
y Quı́mica Inorgánica, Facultad de
Ciencias, Universidad de Cádiz,
11510 Puerto Real, Cádiz, Spain
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Ding N, Zhang W, Hor TSA. One-step entry to olefin-tethered N,S-heterocyclic carbene complexes of ruthenium with mixed ligands. Dalton Trans 2012; 41:5988-94. [PMID: 22481574 DOI: 10.1039/c2dt12354a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of Ru(II) mixed-ligand complexes RuBr(2)(PPh(3))(2)(N-AyBzTh) (Ay = prop-2-enyl; BzTh = benzothiazol-2-ylidene) (4), RuBr(OAc)(PPh(3))(N-MeAyBzTh) (5), RuBr(OAc)(PPh(3))(N-MeBnBzTh)(2) (MeBn = 3-methylbut-2-enyl) (6) and RuCl(OAc)(PPh(3))(N-MeBnBzTh) (7) have been synthesized from Ru(OAc)(2)(PPh(3))(2) in one-pot condensation and ligand exchange reactions. X-ray single-crystal diffraction analysis revealed that they are neutral octahedral Ru(II) complexes with one or two N,S-heterocyclic carbene (NSHC) ligands and a coordinated (4, 5 and 7) or dangling (6) olefin arm. The system displays a range of self-selecting structural variations. Entry of the hybrid olefin-NSHC and halide ligands ejects either one (5, 6 and 7) phosphine ligand or keeps both phosphines (4) by replacing the acetate. It is also possible to accommodate two NSHC ligands by keeping the olefin pendant (6). Complexes 5 and 7 are isostructural with all different ligands on the coordination sphere. Complexes 4-6 are active towards transfer hydrosilylation showing good β(Z) selectivity, with the Ru(II) bearing acetate giving higher yields.
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Affiliation(s)
- Nini Ding
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore
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Korotkikh NI, Saberov VS, Kiselev AV, Glinyanaya NV, Marichev KA, Pekhtereva TM, Dudarenko GV, Bumagin NA, Shvaika OP. Heterocyclic carbene complexes of nickel, palladium, and copper(I) as effective catalysts for the reduction of ketones*. Chem Heterocycl Compd (N Y) 2012. [DOI: 10.1007/s10593-012-0947-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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33
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He LP, Chen T, Xue DX, Eddaoudi M, Huang KW. Efficient transfer hydrogenation reaction Catalyzed by a dearomatized PN3P ruthenium pincer complex under base-free Conditions. J Organomet Chem 2012. [DOI: 10.1016/j.jorganchem.2011.10.017] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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34
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Yiğit B, Yiğit M, Özdemir İ, Çetinkaya E. Synthesis of ruthenium(II) N-heterocyclic carbene complexes and their catalytic activities in transfer hydrogenation of ketones. TRANSIT METAL CHEM 2012. [DOI: 10.1007/s11243-012-9589-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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35
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Guo XQ, Wang YN, Wang D, Cai LH, Chen ZX, Hou XF. Palladium, iridium and ruthenium complexes with acyclic imino-N-heterocyclic carbenes and their application in aqua-phase Suzuki–Miyaura cross-coupling reaction and transfer hydrogenation. Dalton Trans 2012; 41:14557-67. [DOI: 10.1039/c2dt31989f] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Fernández FE, Puerta MC, Valerga P. Half-Sandwich Ruthenium(II) Picolyl-NHC Complexes: Synthesis, Characterization, and Catalytic Activity in Transfer Hydrogenation Reactions. Organometallics 2011. [DOI: 10.1021/om200665f] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Francys E. Fernández
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, 11510 Puerto Real, Cádiz, España
| | - M. Carmen Puerta
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, 11510 Puerto Real, Cádiz, España
| | - Pedro Valerga
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, 11510 Puerto Real, Cádiz, España
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Piel I, Pawelczyk MD, Hirano K, Fröhlich R, Glorius F. A Family of Thiazolium Salt Derived N-Heterocyclic Carbenes (NHCs) for Organocatalysis: Synthesis, Investigation and Application in Cross-Benzoin Condensation. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100870] [Citation(s) in RCA: 128] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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38
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Ding N, Hor TSA. Syntheses and Structures of Ruthenium(II) N,S-Heterocyclic Carbene Diphosphine Complexes and their Catalytic Activity towards Transfer Hydrogenation. Chem Asian J 2011; 6:1485-91. [DOI: 10.1002/asia.201000930] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2010] [Indexed: 11/08/2022]
Affiliation(s)
- Nini Ding
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore
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