1
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Zhou Y, Wensink NH, Pécharman AF, Miloserdov FM. Synthesis and Reactivity of Ruthenium(BINAP)(PPh 3). Angew Chem Int Ed Engl 2024; 63:e202318684. [PMID: 38334325 DOI: 10.1002/anie.202318684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 02/06/2024] [Accepted: 02/08/2024] [Indexed: 02/10/2024]
Abstract
Ru(BINAP)(PPh3)HCl cleanly reacts with LiCH2TMS to give Ru(BINAP)(PPh3) (1) that has been fully characterized, including by X-ray diffraction (BINAP and TMS stand for (2,2'-bis(diphenylphosphino)-1,1'-binaphthyl and trimethylsilyl respectively). In sharp contrast with other carbonyl-free phosphine complexes of Ru(0), 1 demonstrates a strikingly high thermal stability and no propensity for intramolecular C-H activation (cyclometalation). Yet 1 coordinates acetonitrile and readily exchanges its PPh3 ligand with alkenes and dienes, thus behaving like a "masked" 16-e Ru(0) species. Electron-poor alkenes coordinate more readily than electron-rich ones, which testifies for the nucleophilic character of the Ru(0)-BINAP fragment. While being thermally stable, 1 is highly reactive and is capable of activating C-H and N-H bonds, and even of cleaving an inert N-Et bond. The combination of high reactivity and stability originates from the P,arene-chelation by the BINAP ligand, i.e., the coordinated π-arene stabilizes Ru(0) to prevent cyclometalation, yet it can slide upon substrate coordination, thereby enabling a variety of inert bond activation reactions to occur under mild conditions.
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Affiliation(s)
- Yifei Zhou
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, Wageningen, 6708 WE, The Netherlands
| | - Niels H Wensink
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, Wageningen, 6708 WE, The Netherlands
| | | | - Fedor M Miloserdov
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, Wageningen, 6708 WE, The Netherlands
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2
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Gridnev ID. Co-Catalyzed Asymmetric Hydrogenation. The Same Enantioselection Pattern for Different Mechanisms. Int J Mol Sci 2023; 24:5568. [PMID: 36982642 PMCID: PMC10057697 DOI: 10.3390/ijms24065568] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 03/03/2023] [Accepted: 03/07/2023] [Indexed: 03/17/2023] Open
Abstract
The mechanism of the recently reported catalyzed asymmetric hydrogenation of enyne 1 catalyzed by the Co-(R,R)-QuinoxP* complex was studied by DFT. Conceivable pathways for the Co(I)-Co(III) mechanism were computed together with a Co(0)-Co(II) catalytic cycle. It is commonly assumed that the exact nature of the chemical transformations taking place along the actually operating catalytic pathway determine the sense and level of enantioselection of the catalytic reaction. In this work, two chemically different mechanisms reproduced the experimentally observed perfect stereoselection of the same handedness. Moreover, the relative stabilities of the transition states of the stereo induction stages were controlled via exactly the same weak disperse interactions between the catalyst and the substrate.
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Affiliation(s)
- Ilya D Gridnev
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, 119911 Moscow, Russia
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3
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Ruthenium‐Catalyzed Enantioselective Hydrogenation of 9‐Phenanthrols. Angew Chem Int Ed Engl 2022; 61:e202205739. [DOI: 10.1002/anie.202205739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Indexed: 11/07/2022]
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4
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Pavlovic L, Mendelsohn LN, Zhong H, Chirik PJ, Hopmann KH. Cobalt-Catalyzed Asymmetric Hydrogenation of Enamides: Insights into Mechanisms and Solvent Effects. Organometallics 2022; 41:1872-1882. [PMID: 35915664 PMCID: PMC9335863 DOI: 10.1021/acs.organomet.2c00180] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Indexed: 11/28/2022]
Abstract
The mechanistic details of the (PhBPE)Co-catalyzed asymmetric hydrogenation of enamides are investigated using computational and experimental approaches. Four mechanistic possibilities are compared: a direct Co(0)/Co(II) redox path, a metathesis pathway, a nonredox Co(II) mechanism featuring an aza-metallacycle, and a possible enamide-imine tautomerization pathway. The results indicate that the operative mechanism may depend on the type of enamide. Explicit solvent is found to be crucial for the stabilization of transition states and for a proper estimation of the enantiomeric excess. The combined results highlight the complexity of base-metal-catalyzed hydrogenations but do also provide guiding principles for a mechanistic understanding of these systems, where protic substrates can be expected to open up nonredox hydrogenation pathways.
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Affiliation(s)
- Ljiljana Pavlovic
- Department
of Chemistry, UiT - The Arctic University
of Norway, N-9037 Tromsø, Norway
| | - Lauren N. Mendelsohn
- Department
of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Hongyu Zhong
- Department
of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Paul J. Chirik
- Department
of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Kathrin H. Hopmann
- Department
of Chemistry, UiT - The Arctic University
of Norway, N-9037 Tromsø, Norway
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5
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Fan QH, Zhang SX, Xu C, Yi N, Li S, He YM, Feng Y. Ruthenium‐Catalyzed Enantioselective Hydrogenation of 9‐Phenanthrols. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Qing-Hua Fan
- Institute of Chemistry, Chinese Academy of Sciences No.2 First North Street, Zhongguan Cun 100190 Beijing CHINA
| | - Shu-Xin Zhang
- Institute of Chemistry Chinese Academy of Sciences CAS key laboratory of molecular recognition and function 100190 Beijing CHINA
| | - Cong Xu
- Institute of Chemistry Chinese Academy of Sciences CAS key laboratory of molecular recognition and function 100190 Beijing CHINA
| | - Niannian Yi
- Institute of Chemistry CAS: Institute of Chemistry Chinese Academy of Sciences CAS key laboratory of molecular recognition and function 100190 Beijing CHINA
| | - Shan Li
- Institute of Chemistry CAS: Institute of Chemistry Chinese Academy of Sciences CAS key laboratory of molecular recognition and function 100190 Beijing CHINA
| | - Yan-Mei He
- Institute of Chemistry Chinese Academy of Sciences CAS key laboratory of molecular recognition and function 100190 Beijing CHINA
| | - Yu Feng
- Institute of Chemistry Chinese Academy of Sciences CAS key laboratory of molecular recognition and function 100190 Beijing CHINA
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6
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Hao W, Joe CL, Ayers S, Darù A, Daley RA, Chen JS, Domanski M, Schmidt MA, Blackmond DG. Ru-Catalyzed Enantioselective Hydrogenation of 2-Pyridyl-Substituted Alkenes and Substrate-Mediated H/D Exchange. ACS Catal 2022; 12:1150-1160. [PMID: 36386561 PMCID: PMC9648516 DOI: 10.1021/acscatal.1c05061] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A highly efficient and enantioselective asymmetric hydrogenation catalyzed by Ru-DTBM-segphos is reported for a broad range of pyridine-pyrroline tri-substituted alkenes. Kinetic, spectroscopic, and computational studies suggest that addition of H2 is rate-determining and that alkene insertion is the enantio-determining step. These studies also reveal an intriguing Ru-catalyzed H/D exchange process that is facilitated by the substrate at room temperature and low pressure where hydrogenation activity is suppressed. These studies lead to a mechanistic proposal that further defines the roles of hydrogen gas, Ru-H species, and protic solvents in this catalytic system.
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Affiliation(s)
- Wei Hao
- Department of Chemistry, Scripps Research, La Jolla, CA 92037 USA
| | - Candice L. Joe
- Chemical Development, Bristol Myers Squibb Corp., New Brunswick, NJ 08903 USA
| | - Sloan Ayers
- Chemical Development, Bristol Myers Squibb Corp., New Brunswick, NJ 08903 USA
| | - Andrea Darù
- Department of Chemistry, Scripps Research, La Jolla, CA 92037 USA
| | - Ryan A. Daley
- Department of Chemistry, Scripps Research, La Jolla, CA 92037 USA
| | - Jason S. Chen
- Department of Chemistry, Scripps Research, La Jolla, CA 92037 USA
- Automated Synthesis Facility, Scripps Research, La Jolla, CA 92037, USA
| | - Michal Domanski
- Department of Chemistry, Scripps Research, La Jolla, CA 92037 USA
| | - Michael A. Schmidt
- Chemical Development, Bristol Myers Squibb Corp., New Brunswick, NJ 08903 USA
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7
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Hey DA, Sauer MJ, Fischer PJ, Esslinger EHJ, Kühn FE, Baratta W. Acetate Acetylacetonate Ampy Ruthenium(II) Complexes as Efficient Catalysts for Ketone Transfer Hydrogenation. ChemCatChem 2020. [DOI: 10.1002/cctc.202000542] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Daniela A. Hey
- Molecular Catalysis, Catalysis Research Center and Department of CatalysisTechnische Universität München Lichtenbergstr. 4 85748 Garching München Germany
| | - Michael J. Sauer
- Molecular Catalysis, Catalysis Research Center and Department of CatalysisTechnische Universität München Lichtenbergstr. 4 85748 Garching München Germany
| | - Pauline J. Fischer
- Molecular Catalysis, Catalysis Research Center and Department of CatalysisTechnische Universität München Lichtenbergstr. 4 85748 Garching München Germany
| | - Eva‐Maria H. J. Esslinger
- Molecular Catalysis, Catalysis Research Center and Department of CatalysisTechnische Universität München Lichtenbergstr. 4 85748 Garching München Germany
| | - Fritz E. Kühn
- Molecular Catalysis, Catalysis Research Center and Department of CatalysisTechnische Universität München Lichtenbergstr. 4 85748 Garching München Germany
| | - Walter Baratta
- Dipartimento di Scienze AgroAlimentari, Ambientali e Animali (DI4 A)Università di Udine Via Cotonificio 108 33100 Udine Italy
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8
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Guan YQ, Han Z, Li X, You C, Tan X, Lv H, Zhang X. A cheap metal for a challenging task: nickel-catalyzed highly diastereo- and enantioselective hydrogenation of tetrasubstituted fluorinated enamides. Chem Sci 2019; 10:252-256. [PMID: 30746080 PMCID: PMC6335620 DOI: 10.1039/c8sc04002h] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 10/03/2018] [Indexed: 12/19/2022] Open
Abstract
Nickel-catalyzed asymmetric hydrogenation of challenging tetrasubstituted fluorinated enamides has been achieved, affording chiral α-fluoro-β-amino esters in high yields with excellent diastereo- and enantioselectivities (up to 98% yield, >99 : 1 dr, up to >99% ee). Deuterium-labeling experiments and control experiments were conducted to probe the mechanism, and the results indicated that the acidity of the solvent plays a critical role in the control of diastereoselectivity by trapping the adduct of nickel hydride to C[double bond, length as m-dash]C bonds via protonolysis, giving the hydrogenation product with stereospecific syn-selectivity. This protocol provides efficient access to chiral α-fluoro-β-amino esters which have important potential applications in organic synthesis and medicinal chemistry.
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Affiliation(s)
- Yu-Qing Guan
- Key Laboratory of Biomedical Polymers of Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China .
| | - Zhengyu Han
- Key Laboratory of Biomedical Polymers of Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China .
| | - Xiuxiu Li
- Key Laboratory of Biomedical Polymers of Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China .
| | - Cai You
- Key Laboratory of Biomedical Polymers of Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China .
| | - Xuefeng Tan
- Department of Chemistry , Shenzhen Grubbs Institute , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , P. R. China
| | - Hui Lv
- Key Laboratory of Biomedical Polymers of Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China .
- Engineering Research Center of Organosilicon Compounds & Materials , Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , 430072 , China
- Beijing National Laboratory for Molecular Sciences , CAS Key Laboratory of Molecular Recognition and Function , Institute of Chemistry , Chinese Academy of Sciences , Beijing , 100190 , P. R. China
| | - Xumu Zhang
- Department of Chemistry , Shenzhen Grubbs Institute , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , P. R. China
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9
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Hey DA, Fischer PJ, Baratta W, Kühn FE. Ru(O2CCF3)2(PPh3)2 and ruthenium phosphine complexes bearing fluoroacetate ligands: synthesis, characterization and catalytic activity. Dalton Trans 2019; 48:4625-4635. [DOI: 10.1039/c9dt00334g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The versatile precursor Ru(O2CCF3)2(PPh3)2 was isolated and used for the synthesis of ruthenium(ii) trifluoroacetate complexes, active in ketone transfer hydrogenation.
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Affiliation(s)
- Daniela A. Hey
- Molecular Catalysis
- Catalysis Research Center and Department of Chemistry
- Technische Universität München
- 85747 Garching bei München
- Germany
| | - Pauline J. Fischer
- Molecular Catalysis
- Catalysis Research Center and Department of Chemistry
- Technische Universität München
- 85747 Garching bei München
- Germany
| | - Walter Baratta
- Dipartimento di Scienze AgroAlimentari
- Ambientali e Animali (DI4A)
- Università di Udine
- I-33100 Udine
- Italy
| | - Fritz E. Kühn
- Molecular Catalysis
- Catalysis Research Center and Department of Chemistry
- Technische Universität München
- 85747 Garching bei München
- Germany
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10
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Nakane S, Yamamura T, Manna SK, Tanaka S, Kitamura M. Mechanistic Study of the Ru-Catalyzed Asymmetric Hydrogenation of Nonchelatable and Chelatable tert-Alkyl Ketones Using the Linear Tridentate sp 3P/sp 3NH/sp 2N-Combined Ligand PN(H)N: RuNH- and RuNK-Involved Dual Catalytic Cycle. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02671] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Satoshi Nakane
- Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan
| | - Tomoya Yamamura
- Graduate School of Science and Research Center for Materials Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan
| | - Sudipta Kumar Manna
- Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan
| | - Shinji Tanaka
- Graduate School of Science and Research Center for Materials Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan
| | - Masato Kitamura
- Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan
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11
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Corrêa BK, Silva TR, Raminelli C. Total syntheses of (+)-bernumidine and its unnatural enantiomer. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.08.046] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Yoshioka S, Saito S. Catalytic hydrogenation of carboxylic acids using low-valent and high-valent metal complexes. Chem Commun (Camb) 2018; 54:13319-13330. [DOI: 10.1039/c8cc06543h] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carboxylic acids are ubiquitous in bio-renewable and petrochemical sources of carbon.
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Affiliation(s)
| | - Susumu Saito
- Graduate School of Science
- Nagoya University
- Nagoya
- Japan
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13
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Gao W, Lv H, Zhang T, Yang Y, Chung LW, Wu YD, Zhang X. Nickel-catalyzed asymmetric hydrogenation of β-acylamino nitroolefins: an efficient approach to chiral amines. Chem Sci 2017; 8:6419-false. [PMID: 29163927 PMCID: PMC5632792 DOI: 10.1039/c7sc02669b] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 07/02/2017] [Indexed: 12/16/2022] Open
Abstract
An efficient approach for synthesizing chiral β-amino nitroalkanes has been developed via the Ni-catalyzed asymmetric hydrogenation of challenging β-amino nitroolefins under mild conditions, affording the desired products in excellent yields and with high enantioselectivities. This protocol had good compatibility with the wide substrate scope and a range of functional groups. The synthesis of chiral β-amino nitroalkanes on a gram scale has also been achieved. In addition, the reaction mechanism was elucidated using a combined experimental and computational study, and it involved acetate-assisted heterolytic H2 cleavage followed by 1,4-hydride addition and protonation to achieve the nitroalkanes.
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Affiliation(s)
- Wenchao Gao
- Key Laboratory of Biomedical Polymers of Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , 430072 , China .
| | - Hui Lv
- Key Laboratory of Biomedical Polymers of Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , 430072 , China .
- Engineering Research Center of Organosilicon Compounds & Materials , Ministry of Education , Wuhan , 430072 , China
| | - Tonghuan Zhang
- Department of Chemistry , South University of Science and Technology of China , Shenzhen , 518055 , China . ;
- Lab of Computational Chemistry and Drug Design , Laboratory of Chemical Genomics , Peking University Shenzhen Graduate School , Shenzhen 518055 , China
| | - Yuhong Yang
- Department of Chemistry , South University of Science and Technology of China , Shenzhen , 518055 , China . ;
| | - Lung Wa Chung
- Department of Chemistry , South University of Science and Technology of China , Shenzhen , 518055 , China . ;
| | - Yun-Dong Wu
- Lab of Computational Chemistry and Drug Design , Laboratory of Chemical Genomics , Peking University Shenzhen Graduate School , Shenzhen 518055 , China
| | - Xumu Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , 430072 , China .
- Department of Chemistry , South University of Science and Technology of China , Shenzhen , 518055 , China . ;
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14
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Kraft S, Ryan K, Kargbo RB. Recent Advances in Asymmetric Hydrogenation of Tetrasubstituted Olefins. J Am Chem Soc 2017; 139:11630-11641. [DOI: 10.1021/jacs.7b07188] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Stefan Kraft
- Drug Discovery Services,
Medicinal Chemistry, Albany Molecular Research Inc., 26 Corporate Circle, Albany, New York 12201-5098, United States
| | - Kristen Ryan
- Drug Discovery Services,
Medicinal Chemistry, Albany Molecular Research Inc., 26 Corporate Circle, Albany, New York 12201-5098, United States
| | - Robert B. Kargbo
- Drug Discovery Services,
Medicinal Chemistry, Albany Molecular Research Inc., 26 Corporate Circle, Albany, New York 12201-5098, United States
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15
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Wang Q, Zhang Z, Chen C, Yang H, Han Z, Dong XQ, Zhang X. Iridium catalysts with modular axial-unfixed biphenyl phosphine–oxazoline ligands: asymmetric hydrogenation of α,β-unsaturated carboxylic acids. Org Chem Front 2017. [DOI: 10.1039/c6qo00677a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Axial-unfixed biphenyl phosphine–oxazoline ligands were successfully applied to Ir-catalyzed asymmetric hydrogenation of α,β-unsaturated carboxylic acids.
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Affiliation(s)
- Qian Wang
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Zongpeng Zhang
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Caiyou Chen
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Hailong Yang
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Zhengyu Han
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Xiu-Qin Dong
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Xumu Zhang
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
- Department of Chemistry
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16
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Yu Z, Qi X, Li Y, Liu S, Lan Y. Mechanism, chemoselectivity and enantioselectivity for the rhodium-catalyzed desymmetric synthesis of hydrobenzofurans: a theoretical study. Org Chem Front 2016. [DOI: 10.1039/c5qo00334b] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A theoretical study of Rhodium-catalyzed desymmetrization of cyclohexadienones.
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Affiliation(s)
- Zhaoyuan Yu
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400044
- P. R. China
| | - Xiaotian Qi
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400044
- P. R. China
| | - Yingzi Li
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400044
- P. R. China
| | - Song Liu
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400044
- P. R. China
| | - Yu Lan
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400044
- P. R. China
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17
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Amenuvor G, Obuah C, Nordlander E, Darkwa J. Novel pyrazolylphosphite– and pyrazolylphosphinite–ruthenium(ii) complexes as catalysts for hydrogenation of acetophenone. Dalton Trans 2016; 45:13514-24. [DOI: 10.1039/c6dt02164f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New pyrazolylphosphite– and pyrazolylphosphinite–ruthenium(ii) complexes that are effective hydrogenation catalysts for acetophenone.
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Affiliation(s)
| | - Collins Obuah
- Department of Chemistry
- University of Johannesburg
- South Africa
| | - Ebbe Nordlander
- Inorganic Chemistry Research Group
- Chemical Physics
- Centre for Chemistry and Chemical Engineering
- Lund University
- SE-221 00 Lund
| | - James Darkwa
- Department of Chemistry
- University of Johannesburg
- South Africa
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18
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Cationic mononuclear ruthenium carboxylates as catalyst prototypes for self-induced hydrogenation of carboxylic acids. Nat Commun 2015; 6:8140. [PMID: 26314266 PMCID: PMC4560812 DOI: 10.1038/ncomms9140] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 07/22/2015] [Indexed: 11/09/2022] Open
Abstract
Carboxylic acids are ubiquitous in bio-renewable and petrochemical sources of carbon. Hydrogenation of carboxylic acids to yield alcohols produces water as the only byproduct, and thus represents a possible next generation, sustainable method for the production of these alternative energy carriers/platform chemicals on a large scale. Reported herein are molecular insights into cationic mononuclear ruthenium carboxylates ([Ru(OCOR)]+) as prototypical catalysts for the hydrogenation of carboxylic acids. The substrate-derived coordinated carboxylate was found to function initially as a proton acceptor for the heterolytic cleavage of dihydrogen, and subsequently also as an acceptor for the hydride from [Ru–H]+, which was generated in the first step (self-induced catalysis). The hydrogenation proceeded selectively and at high levels of functional group tolerance, a feature that is challenging to achieve with existing heterogeneous/homogeneous catalyst systems. These fundamental insights are expected to significantly benefit the future development of metal carboxylate-catalysed hydrogenation processes of bio-renewable resources. Many structurally diverse carboxylic acids are available from renewable and petrochemical sources. Here, the authors report a method to reduce carboxylic acids to alcohols using hydrogen, with high selectivity, wherein the carboxylates form active and hydrogen-accepting parts of the catalyst system.
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19
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Huang L, Wang W, Wei H. A computational study on high-valent mono-oxo-rhenium(V) complex-catalyzed hydrosilylation of carbonyls: What a difference an oxo ligand makes. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcata.2015.01.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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20
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Pranckevicius C, Fan L, Stephan DW. Cyclic bent allene hydrido-carbonyl complexes of ruthenium: highly active catalysts for hydrogenation of olefins. J Am Chem Soc 2015; 137:5582-9. [PMID: 25855868 DOI: 10.1021/jacs.5b02203] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A new family of ruthenium complexes bearing the carbodicarbene-type ligand "cyclic bent allene" (CBA) have been synthesized from the common precursor RuHCl(CO)(PPh3)3. Complexes were evaluated for catalytic activity in the room-temperature hydrogenation of unactivated olefins and were found to be significantly more active than known ruthenium hydrido-carbonyl phosphine or NHC complexes. In particular, RuH(OSO2CF3)(CO)(SIMes)(CBA) was found to be among the most active hydrogenation catalysts, achieving comparable activity to Crabtree's catalyst in the hydrogenation of unactivated trisubstituted olefins and superior activity in the hydrogenation of styrene derivatives in side-by-side catalytic runs. RuH(OSO2CF3)(CO)(SIMes)(CBA) was also found to be highly active in olefin selective hydrogenation in the presence of a variety of unsaturated functional groups, and can achieve exceptional diastereoselectivity in functional-group-directed hydrogenations at very low catalyst loadings.
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Affiliation(s)
- Conor Pranckevicius
- Department of Chemistry, University of Toronto. Toronto, Ontario M5S 3H6, Canada
| | - Louie Fan
- Department of Chemistry, University of Toronto. Toronto, Ontario M5S 3H6, Canada
| | - Douglas W Stephan
- Department of Chemistry, University of Toronto. Toronto, Ontario M5S 3H6, Canada
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21
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Singh VK, Puerta MC, Valerga P. Differential Reactivity of [TpRu(κ
2
P
,
N
‐
i
Pr
2
PXPy)Cl] (X = NH, S) Bearing Hemilabile Coligands Towards NaBAr
F
4
, Lithium Acetylide, and Acetylenes. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500082] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Vinay K. Singh
- Department of Chemistry, Faculty of Science, The M. S. University of Baroda, Vadodara‐390002 (Guj.), India
| | - M. Carmen Puerta
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica‐INBIO, Facultad de Ciencias, Universidad de Cádiz, 11510 Puerto Real, Cádiz, Spain
| | - Pedro Valerga
- Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica‐INBIO, Facultad de Ciencias, Universidad de Cádiz, 11510 Puerto Real, Cádiz, Spain
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22
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Guo S, Yang P, Zhou J(S. Nickel-catalyzed asymmetric transfer hydrogenation of conjugated olefins. Chem Commun (Camb) 2015; 51:12115-7. [DOI: 10.1039/c5cc01632k] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A nickel catalyst is used for asymmetric hydrogenation of electron-deficient olefins using formic acid as hydrogen source.
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Affiliation(s)
- Siyu Guo
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
| | - Peng Yang
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
| | - Jianrong (Steve) Zhou
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
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23
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Kitamura M, Tanaka S, Yoshimura M. Donor-Acceptor Bifunctional Molecular Catalyst: Its Development, Application, and Analysis. J SYN ORG CHEM JPN 2015. [DOI: 10.5059/yukigoseikyokaishi.73.690] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Masato Kitamura
- Graduate School of Pharmaceutical Sciences, Nagoya University
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24
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Yang P, Xu H, Zhou JS. Nickel-Catalyzed Asymmetric Transfer Hydrogenation of Olefins for the Synthesis of α- and β-Amino Acids. Angew Chem Int Ed Engl 2014; 53:12210-3. [DOI: 10.1002/anie.201407744] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 08/26/2014] [Indexed: 11/10/2022]
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25
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Yang P, Xu H, Zhou JS. Nickel-Catalyzed Asymmetric Transfer Hydrogenation of Olefins for the Synthesis of α- and β-Amino Acids. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201407744] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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26
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Huang WL, Hung GJ, Lo YH. Unprecedented formation of ruthenium 2-mercaptobenzothiazole complex. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2014.05.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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27
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Chakraborty S, Blacque O, Fox T, Berke H. Hydrogenation of Imines Catalyzed by Trisphosphine-Substituted Molybdenum and Tungsten Nitrosyl Hydrides and Co-Catalytic Acid. Chem Asian J 2014; 9:2896-907. [DOI: 10.1002/asia.201402280] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Indexed: 11/10/2022]
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28
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Duan Y, Li L, Chen MW, Yu CB, Fan HJ, Zhou YG. Homogenous Pd-Catalyzed Asymmetric Hydrogenation of Unprotected Indoles: Scope and Mechanistic Studies. J Am Chem Soc 2014; 136:7688-700. [DOI: 10.1021/ja502020b] [Citation(s) in RCA: 147] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Ying Duan
- State
Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of
Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Lu Li
- State Key
Laboratory of Fine Chemicals, Institute of Coal Chemical Engineering,
School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Mu-Wang Chen
- State
Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of
Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Chang-Bin Yu
- State
Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of
Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Hong-Jun Fan
- State
Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of
Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yong-Gui Zhou
- State
Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of
Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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29
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Genet JP, Ayad T, Ratovelomanana-Vidal V. Electron-Deficient Diphosphines: The Impact of DIFLUORPHOS in Asymmetric Catalysis. Chem Rev 2014; 114:2824-80. [DOI: 10.1021/cr4003243] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Jean-Pierre Genet
- Laboratoire Charles Friedel
(LCF), ENSCP Chimie ParisTech, CNRS UMR 7223, 11 rue Pierre et
Marie Curie, 75005, Paris, France
| | - Tahar Ayad
- Laboratoire Charles Friedel
(LCF), ENSCP Chimie ParisTech, CNRS UMR 7223, 11 rue Pierre et
Marie Curie, 75005, Paris, France
| | - Virginie Ratovelomanana-Vidal
- Laboratoire Charles Friedel
(LCF), ENSCP Chimie ParisTech, CNRS UMR 7223, 11 rue Pierre et
Marie Curie, 75005, Paris, France
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30
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Verendel JJ, Pàmies O, Diéguez M, Andersson PG. Asymmetric Hydrogenation of Olefins Using Chiral Crabtree-type Catalysts: Scope and Limitations. Chem Rev 2013; 114:2130-69. [DOI: 10.1021/cr400037u] [Citation(s) in RCA: 355] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- J. Johan Verendel
- Department
of Chemistry - BMC, Uppsala University, Husargatan 3, Box
576, SE-751 23, Uppsala, Sweden
| | - Oscar Pàmies
- Departament
de Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcelli Domingo, s/n, 43007, Tarragona, Spain
| | - Montserrat Diéguez
- Departament
de Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcelli Domingo, s/n, 43007, Tarragona, Spain
| | - Pher G. Andersson
- Department
of Chemistry - BMC, Uppsala University, Husargatan 3, Box
576, SE-751 23, Uppsala, Sweden
- Department
of Organic Chemistry, Stockholm University Arrhenius Laboratory, SE-106
91, Stockholm, Sweden
- School
of Chemistry, University of KwaZulu-Natal, University Road, Westville, Durban 4041, South Africa
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31
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Noyori R. Facts are the Enemy of Truth-Reflections on Serendipitous Discovery and Unforeseen Developments in Asymmetric Catalysis. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/anie.201205537] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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32
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Noyori R. Fakten sind der Feind der Wahrheit - Betrachtungen über Zufallsentdeckungen und ungeahnte Entwicklungen der asymmetrischen Katalyse. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201205537] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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33
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Abstract
The first example of a 2,2',6,6'-tetraphosphinobiphenyl was prepared and used as a ligand in a dinuclear palladium(II) complex. The close proximity of the two complex fragments induces a coupling pathway allowing the allosteric communication between the two palladium complex fragments.
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Affiliation(s)
- Holm Petzold
- Inst. für Chemie, Strasse der Nationen 62, D-09111 Chemnitz, Germany.
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34
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Yoshimura M, Tsuda K, Nakatsuka H, Yamamura T, Kitamura M. Desymmetric hydrogenation of a meso-cyclic acid anhydride toward biotin synthesis. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.09.065] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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35
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36
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Erb J, Paull DH, Dudding T, Belding L, Lectka T. From bifunctional to trifunctional (tricomponent nucleophile-transition metal-lewis acid) catalysis: the catalytic, enantioselective α-fluorination of acid chlorides. J Am Chem Soc 2011; 133:7536-46. [PMID: 21513338 PMCID: PMC3432319 DOI: 10.1021/ja2014345] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report in full detail our studies on the catalytic, asymmetric α-fluorination of acid chlorides, a practical method that produces an array of α-fluorocarboxylic acid derivatives in which improved yield and virtually complete enantioselectivity are controlled through electrophilic fluorination of a ketene enolate intermediate. We discovered, for the first time, that a third catalyst, a Lewis acidic lithium salt, could be introduced into a dually activated system to amplify yields of aliphatic products, primarily through activation of the fluorinating agent. Through our mechanistic studies (based on kinetic data, isotopic labeling, spectroscopic measurements, and theoretical calculations) we were able to utilize our understanding of this "trifunctional" reaction to optimize the conditions and obtain new products in good yield and excellent enantioselectivity.
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Affiliation(s)
- Jeremy Erb
- Department of Chemistry, New Chemistry Building, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland, 21218
| | - Daniel H. Paull
- Department of Chemistry, New Chemistry Building, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland, 21218
| | - Travis Dudding
- Department of Chemistry, Brock University, 500 Glenridge Avenue, St. Catharines, Ontario, Canada L2S 3A1
| | - Lee Belding
- Department of Chemistry, Brock University, 500 Glenridge Avenue, St. Catharines, Ontario, Canada L2S 3A1
| | - Thomas Lectka
- Department of Chemistry, Brock University, 500 Glenridge Avenue, St. Catharines, Ontario, Canada L2S 3A1
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37
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Gómez-Gallego M, Sierra MA. Kinetic isotope effects in the study of organometallic reaction mechanisms. Chem Rev 2011; 111:4857-963. [PMID: 21545118 DOI: 10.1021/cr100436k] [Citation(s) in RCA: 527] [Impact Index Per Article: 40.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Mar Gómez-Gallego
- Departamento de Química Orgánica I, Facultad de Química, Universidad Complutense, 28040 Madrid, Spain.
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38
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Sung HL, Hsu HL. The reactivity of TMSN3 with ruthenium cyclopropenyl complexes containing different ligands and different substituent at Cγ. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2010.12.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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39
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O WWN, Lough AJ, Morris RH. Mechanistic Investigation of the Hydrogenation of Ketones Catalyzed by a Ruthenium(II) Complex Featuring an N-Heterocyclic Carbene with a Tethered Primary Amine Donor: Evidence for an Inner Sphere Mechanism. Organometallics 2011. [DOI: 10.1021/om101152m] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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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40
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Cui X, Zhang Y, Shi F, Deng Y. Ruthenium-Catalyzed Nitro and Nitrile Compounds Coupling with Alcohols: Alternative Route for N-Substituted Amine Synthesis. Chemistry 2011; 17:2587-91. [DOI: 10.1002/chem.201003095] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2010] [Indexed: 11/10/2022]
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41
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Hu TC, Hsiao PI, Wang TH, Yang YW, Chang CY, Wu YH, Sun WC, Yu MS, Lee CY, Lo YH. Ruthenium-catalyzed oxidation of a carbon–carbon triple bond: facile syntheses of alkenyl 1,2-diketones from alkynes. Dalton Trans 2011; 40:12663-6. [DOI: 10.1039/c1dt11642h] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Lo YH, Chen HG, Kuo TS. Proton-induced reactivities of ruthenium azido complexes: the first example of boron–carbon bond formation by methylene insertion into a B–H bond. Dalton Trans 2011; 40:2711-5. [DOI: 10.1039/c0dt01091j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Kitamura M, Nakatsuka H. Mechanistic insight into NOYORI asymmetric hydrogenations. Chem Commun (Camb) 2011; 47:842-6. [DOI: 10.1039/c0cc01390k] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Kakiuchi F, Kochi T, Mizushima E, Murai S. Room-temperature regioselective C-H/olefin coupling of aromatic ketones using an activated ruthenium catalyst with a carbonyl ligand and structural elucidation of key intermediates. J Am Chem Soc 2010; 132:17741-50. [PMID: 21114294 DOI: 10.1021/ja104918f] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Mechanistic studies of the ruthenium-catalyzed reaction of aromatic ketones with olefins are presented. Treatment of the original catalyst, RuH(2)(CO)(PPh(3))(3), with trimethylvinylsilane at 90 °C for 1-1.5 h afforded an activated ruthenium catalyst, Ru(o-C(6)H(4)PPh(2))(H)(CO)(PPh(3))(2), as a mixture of four geometric isomers. The activated complex showed high catalytic activity for C-H/olefin coupling, and the reaction of 2'-methylacetophenone with trimethylvinylsilane at room temperature for 48 h gave the corresponding ortho-alkylation product in 99% isolated yield. The activated catalyst was thermally robust and showed excellent catalytic activity under refluxing toluene conditions. (1)H and (31)P NMR studies of the C-H/olefin coupling at room temperature suggested that an ortho-ruthenated complex, P,P'-cis-C,H-cis-Ru(2'-(6'-MeC(6)H(4)C(O)Me))(H)(CO)(PPh(3))(2), participated in the reaction as a key intermediate. Isotope labeling studies using acetophenone-d(5) indicated that the rate-limiting step was the C-C bond formation, not the C-H bond cleavage, and that each step prior to the reductive elimination was reversible. The rate of C-H/olefin coupling was found to exhibit pseudo first-order kinetics and to show first-order dependence on the ruthenium complex concentration.
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Affiliation(s)
- Fumitoshi Kakiuchi
- Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan.
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45
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Wassenaar J, Kuil M, Lutz M, Spek A, Reek J. Asymmetric Hydrogenation with Highly Active IndolPhos-Rh Catalysts: Kinetics and Reaction Mechanism. Chemistry 2010; 16:6509-17. [DOI: 10.1002/chem.200903476] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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46
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Sandoval C, Bie F, Matsuoka A, Yamaguchi Y, Naka H, Li Y, Kato K, Utsumi N, Tsutsumi K, Ohkuma T, Murata K, Noyori R. Chiral η6-Arene/N-Tosylethylenediamine-Ruthenium(II) Complexes: Solution Behavior and Catalytic Activity for Asymmetric Hydrogenation. Chem Asian J 2010; 5:806-16. [DOI: 10.1002/asia.200900461] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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47
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Miller KL, Williams BN, Benitez D, Carver CT, Ogilby KR, Tkatchouk E, Goddard WA, Diaconescu PL. Dearomatization Reactions of N-Heterocycles Mediated by Group 3 Complexes. J Am Chem Soc 2009; 132:342-55. [DOI: 10.1021/ja908489p] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kevin L. Miller
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095, and Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125
| | - Bryan N. Williams
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095, and Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125
| | - Diego Benitez
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095, and Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125
| | - Colin T. Carver
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095, and Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125
| | - Kevin R. Ogilby
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095, and Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125
| | - Ekaterina Tkatchouk
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095, and Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125
| | - William A. Goddard
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095, and Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125
| | - Paula L. Diaconescu
- Department of Chemistry & Biochemistry, University of California, Los Angeles, California 90095, and Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125
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48
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Gavrilov KN, Zheglov SV, Vologzhanin PA, Rastorguev EA, Shiryaev AA, Maksimova MG, Lyubimov SE, Benetsky EB, Safronov AS, Petrovskii PV, Davankov VA, Schäffner B, Börner A. Diastereomeric P*-mono- and P*,P*-bidentate diamidophosphite ligands based on 1,4:3,6-dianhydro-d-mannitol in asymmetric metallocomplex catalysis. Russ Chem Bull 2009. [DOI: 10.1007/s11172-008-0327-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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49
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Lee J, Bernard S, Liu XC. Nanostructured Biomimetic Catalysts for Asymmetric Hydrogenation of Enamides using Molecular Imprinting Technology. REACT FUNCT POLYM 2009; 69:650-654. [PMID: 20161044 PMCID: PMC2746628 DOI: 10.1016/j.reactfunctpolym.2009.04.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
A new class of heterogeneous catalysts for asymmetric hydrogenation of enamides was synthesized using molecular imprinting technology. These new catalysts are molecularly imprinted polymers (MIPs) made from rhodium (I) and copper (II) complexes with the bis(oxazoline) chiral ligands. One of the Rh-MIPs showed 87% ee toward L-enantiomeric product while the Cu-MIP showed 82% ee toward D-enantiomeric product. Both MIPs are easy to separate and reusable.
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Affiliation(s)
- Justine Lee
- Department of Chemistry, California State Polytechnic University, 3801 West Temple Avenue, Pomona, CA 91768, Fax: (909) 869-4344,
| | - Steven Bernard
- Department of Chemistry, California State Polytechnic University, 3801 West Temple Avenue, Pomona, CA 91768, Fax: (909) 869-4344,
| | - Xiao-Chuan Liu
- Department of Chemistry, California State Polytechnic University, 3801 West Temple Avenue, Pomona, CA 91768, Fax: (909) 869-4344,
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50
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Zimmer-De Iuliis M, Morris RH. Kinetic Hydrogen/Deuterium Effects in the Direct Hydrogenation of Ketones Catalyzed by a Well-Defined Ruthenium Diphosphine Diamine Complex. J Am Chem Soc 2009; 131:11263-9. [DOI: 10.1021/ja9043104] [Citation(s) in RCA: 99] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marco Zimmer-De Iuliis
- Davenport Laboratory, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Robert H. Morris
- Davenport Laboratory, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
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