1
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Xu A, Ren L, Huang J, Zhu Y, Wang G, Li C, Sun Y, Song L, You H, Chen FE. Highly enantioselective synthesis of both enantiomers of tetrahydroquinoxaline derivatives via Ir-catalyzed asymmetric hydrogenation. Chem Sci 2024:d4sc04222k. [PMID: 39246375 PMCID: PMC11376201 DOI: 10.1039/d4sc04222k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Accepted: 08/20/2024] [Indexed: 09/10/2024] Open
Abstract
A novel Ir-catalyzed asymmetric hydrogenation protocol for the synthesis of chiral tetrahydroquinoxaline (THQ) derivatives has been developed. By simply adjusting the reaction solvent, both enantiomers of mono-substituted chiral THQs could be selectively obtained in high yields with excellent enantioselectivities (toluene/dioxane: up to 93% yield and 98% ee (R); EtOH: up to 83% yield and 93% ee (S)). For 2,3-disubstituted chiral THQs, the cis-hydrogenation products were obtained with up to 95% yield, 20 : 1 dr, and 94% ee. Remarkably, this methodology was also applicable under continuous flow conditions, yielding gram-scale products with comparable yields and enantioselectivities (dioxane: 91% yield and 93% ee (R); EtOH: 90% yield and 87% ee (S)). Unlike previously reported Ir-catalyzed asymmetric hydrogenation protocols, this system exhibited a significant improvement as it required no additional additives. Furthermore, comprehensive mechanistic studies including deuterium-labeling experiments, control experiments, kinetic studies, and density functional theory (DFT) calculations were conducted to reveal the underlying mechanism of enantioselectivities for both enantiomers.
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Affiliation(s)
- Ana Xu
- School of Science, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
| | - Lanxing Ren
- School of Science, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
- School of Chemistry and Chemical Engineering, Hunan Province Key Laboratory for the Design and Application of Actinide Complexes, University of South China Hengyang City Hunan Province 421001 P.R. China
| | - Junrong Huang
- School of Science, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
| | - Yuxiang Zhu
- School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University Shenzhen 518107 China
| | - Gang Wang
- School of Science, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
| | - Chaoyi Li
- School of Science, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
| | - Yongqiang Sun
- School of Science, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
| | - Lijuan Song
- School of Science, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
| | - Hengzhi You
- School of Science, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
- Green Pharmaceutical Engineering Research Center, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
| | - Fen-Er Chen
- School of Science, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
- Green Pharmaceutical Engineering Research Center, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
- Department of Chemistry, Engineering Center of Catalysis and Synthesis for Chiral Molecules, Fudan University Shanghai 200433 China
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2
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Wei Z, Ke Z, Wang Y, Liu Q. Manganese-catalyzed Efficient Synthesis of N-heterocycles and Aminoketones Using Glycerol as a C3 Synthon. Chemistry 2024; 30:e202303481. [PMID: 38239082 DOI: 10.1002/chem.202303481] [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: 10/23/2023] [Indexed: 03/10/2024]
Abstract
Glycerol is one of the important biomass-derived feedstocks and the high-value utilizations of glycerol have attracted much attentions in recent years. Herein, we report a manganese catalyzed dehydrogenative coupling of glycerol with amines for the synthesis of substituted 2-methylquinoxalines, 2-ethylbenzimidazoles, and α-aminoketones without any external oxidant. In these reactions, NHC-based pincer manganese complex featuring a pyridine backbone displayed high catalytic activity and selectivity, in which hydrogen and water were produced as the only by-products using glycerol as a C3 synthon.
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Affiliation(s)
- Zeyuan Wei
- Engineering Research Center of Advanced Rare Earth Materials (Ministry of Education), Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Zhuofeng Ke
- School of Materials Science and Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou, 510006, China
| | - Yujie Wang
- Engineering Research Center of Advanced Rare Earth Materials (Ministry of Education), Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing, 100084, China
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, Henan Normal University, Xinxiang, Henan, 453007, P. R. China
| | - Qiang Liu
- Engineering Research Center of Advanced Rare Earth Materials (Ministry of Education), Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing, 100084, China
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3
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Han Z, Feng X, Du H. Asymmetric Transfer Hydrogenation of 2-Substituted Quinoxalines with Regenerable Dihydrophenanthridine. J Org Chem 2024; 89:3666-3671. [PMID: 38357876 DOI: 10.1021/acs.joc.3c02954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
The asymmetric hydrogenation of quinoxalines represents one of the most efficient approaches for the synthesis of optically active tetrahyroquinoxalines. In this paper, we demonstrate a metal-free asymmetric transfer hydrogenation of 2-substituted quinoxalines with regenerable dihydrophenanthridine under H2 using a combination of chiral phosphoric acid and achiral borane as catalysts. A wide range of optically active 2-substituted tetrahydroquinoxalines were produced in high yields with ≤98% ee.
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Affiliation(s)
- Zaiqi Han
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- College of Pharmacy, Jilin Medical University, Jilin 132013, China
| | - Xiangqing Feng
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Haifeng Du
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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4
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Xu A, Li C, Huang J, Pang H, Zhao C, Song L, You H, Zhang X, Chen FE. Highly enantioselective synthesis of both tetrahydroquinoxalines and dihydroquinoxalinones via Rh-thiourea catalyzed asymmetric hydrogenation. Chem Sci 2023; 14:9024-9032. [PMID: 37655018 PMCID: PMC10466277 DOI: 10.1039/d3sc00803g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 07/03/2023] [Indexed: 09/02/2023] Open
Abstract
Chiral tetrahydroquinoxalines and dihydroquinoxalinones represent the core structure of many bioactive molecules. Herein, a simple and efficient Rh-thiourea-catalyzed asymmetric hydrogenation for enantiopure tetrahydroquinoxalines and dihydroquinoxalinones was developed under 1 MPa H2 pressure at room temperature. The reaction was magnified to the gram scale furnishing the desired products with undamaged yield and enantioselectivity. Application of this methodology was also conducted successfully under continuous flow conditions. In addition, 1H NMR experiments revealed that the introduction of a strong Brønsted acid, HCl, not only activated the substrate but also established anion binding between the substrate and the ligand. More importantly, the chloride ion facilitated heterolytic cleavage of dihydrogen to regenerate the active dihydride species and HCl, which was computed to be the rate-determining step. Further deuterium labeling experiments and density functional theory (DFT) calculations demonstrated that this reaction underwent a plausible outer-sphere mechanism in this new catalytic transformation.
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Affiliation(s)
- Ana Xu
- School of Science, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
| | - Chaoyi Li
- School of Science, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
| | - Junrong Huang
- School of Science, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
| | - Heng Pang
- School of Science, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
| | - Chengyao Zhao
- School of Science, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
| | - Lijuan Song
- School of Science, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
| | - Hengzhi You
- School of Science, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
- Green Pharmaceutical Engineering Research Center, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
| | - Xumu Zhang
- Department of Chemistry, Shenzhen Grubbs Institute, Southern University of Science and Technology Shenzhen 518055 China
| | - Fen-Er Chen
- School of Science, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
- Green Pharmaceutical Engineering Research Center, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University Shanghai 200433 China
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5
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Li L, Chen XS, Hu XP. Intramolecular Copper-Catalyzed Asymmetric Propargylic [4 + 2]- Cycloaddition toward Optically Active Tetrahydroisoindolo[2,1- a]quinoxalines. Org Lett 2022; 24:5433-5438. [PMID: 35856718 DOI: 10.1021/acs.orglett.2c02155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An intramolecular Cu-catalyzed asymmetric propargylic [4 + 2] cycloaddition of bis-N-nucleophile-functionalized propargylic esters has been realized in the support of a chiral tridentate N-ligand, (S,S)-Pybox-diOAc, leading to chiral tetrahydroisoindolo[2,1-a]quinoxalines in high yields and with good to excellent enantioselectivities. The reaction features high efficiency, simplicity, and broad substrate scope, thus providing a powerful and concise strategy for stereoselective access to optically active polycyclic heterocycle frameworks that are otherwise difficult to synthesize.
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Affiliation(s)
- Ling Li
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiu-Shuai Chen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Xiang-Ping Hu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
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6
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Shao BR, Shi L, Zhou YG. Asymmetric hydrogenation of O-/N-functional group substituted arenes. Chem Commun (Camb) 2021; 57:12741-12753. [PMID: 34762082 DOI: 10.1039/d1cc04722a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Asymmetric hydrogenation of aromatic compounds represents one of the most straightforward synthetic methods to construct important chiral cyclic skeletons that are often found in biologically active agents and natural products. So far, the most successful examples in this field are largely limited to aromatics containing alkyl and aryl substituted groups due to the poor functional-group tolerance of hydrogenation. Direct asymmetric hydrogenation of functionalized aromatics provides enormous potential for expanding the structural diversity of reductive products of planar aromatic compounds, which is highly desirable and has not been well studied. This feature article focuses on the progress in catalytic asymmetric hydrogenation and transfer hydrogenation of O/N substituted arenes.
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Affiliation(s)
- Bing-Ru Shao
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China.
| | - Lei Shi
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China.
| | - Yong-Gui Zhou
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China.
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7
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Genêt J, Phansavath P, Ratovelomanana‐Vidal V. Asymmetric Hydrogenation: Design of Chiral Ligands and Transition Metal Complexes. Synthetic and Industrial Applications. Isr J Chem 2021. [DOI: 10.1002/ijch.202100023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jean‐Pierre Genêt
- Chimie ParisTech PSL University CNRS Institute of Chemistry for Life & Health Sciences CSB2D Team 75005 Paris France
| | - Phannarath Phansavath
- Chimie ParisTech PSL University CNRS Institute of Chemistry for Life & Health Sciences CSB2D Team 75005 Paris France
| | - Virginie Ratovelomanana‐Vidal
- Chimie ParisTech PSL University CNRS Institute of Chemistry for Life & Health Sciences CSB2D Team 75005 Paris France
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8
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Huang J, Li GX, Yang GF, Fu DQ, Nie XK, Cui X, Zhao JZ, Tang Z. Catalytic asymmetric synthesis of N-substituted tetrahydroquinoxalines via regioselective Heyns rearrangement and stereoselective transfer hydrogenation in one pot. Chem Sci 2021; 12:4789-4793. [PMID: 34168757 PMCID: PMC8179646 DOI: 10.1039/d0sc06264b] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
N-Substituted tetrahydroquinoxalines (37 examples) were step-economically obtained in good yield (<97%) and ee (<99%) with readily available substrates. The reaction proceeds through an interesting regioselective Heyns rearrangement/enantioselective transfer hydrogenation in one pot. The substrate scope and the reaction mechanism were systematically investigated. N-Substituted tetrahydroquinoxalines were step-economically obtained in good yield and ee with readily available substrates.![]()
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Affiliation(s)
- Jin Huang
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science Chengdu Sichuan 610041 China .,University of Chinese Academy of Sciences China
| | - Guang-Xun Li
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science Chengdu Sichuan 610041 China
| | - Gao-Feng Yang
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science Chengdu Sichuan 610041 China
| | - Ding-Qiang Fu
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science Chengdu Sichuan 610041 China
| | - Xiao-Kang Nie
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science Chengdu Sichuan 610041 China
| | - Xin Cui
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science Chengdu Sichuan 610041 China
| | - Jin-Zhong Zhao
- College of Art and Sciences, Shanxi Agricultural University Taigu Shanxi 030800 China
| | - Zhuo Tang
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science Chengdu Sichuan 610041 China
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9
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Cui X, Huang W, Wu L. Zirconium-hydride-catalyzed transfer hydrogenation of quinolines and indoles with ammonia borane. Org Chem Front 2021. [DOI: 10.1039/d1qo00672j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Herein, by applying zirconium-hydride complex as the catalyst, the transfer hydrogenation of quinoline and indole derivatives with ammonia borane as a proton and hydride source is achieved.
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Affiliation(s)
- Xin Cui
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
| | - Wei Huang
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, P. R. China
| | - Lipeng Wu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
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10
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11
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Xu G, Yang G, Wang Y, Shao PL, Yau JNN, Liu B, Zhao Y, Sun Y, Xie X, Wang S, Zhang Y, Xia L, Zhao Y. Stereoconvergent, Redox-Neutral Access to Tetrahydroquinoxalines through Relay Epoxide Opening/Amination of Alcohols. Angew Chem Int Ed Engl 2019; 58:14082-14088. [PMID: 31270918 DOI: 10.1002/anie.201906199] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 06/27/2019] [Indexed: 12/19/2022]
Abstract
We present an economical catalytic procedure to convert readily available 1,2-diaminobenzenes and terminal epoxides into valuable 1,2,3,4-tetrahydroquinoxalines in a highly enantioselective fashion. This procedure operates through relay zinc and iridium catalysis, and achieves redox-neutral and stereoconvergent production of valuable chiral heterocycles from racemic starting materials with water as the only side product. The use of commercially available reagents and catalysts and a convenient procedure also make this catalytic method attractive for practical application.
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Affiliation(s)
- Guangda Xu
- College of Chemistry, Liaoning University, Shenyang, 110036, P. R. China
| | - Guoqiang Yang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
| | - Yue Wang
- College of Chemistry, Liaoning University, Shenyang, 110036, P. R. China
| | - Pan-Lin Shao
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
| | - Jia Ning Nicolette Yau
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
| | - Bing Liu
- College of Chemistry, Liaoning University, Shenyang, 110036, P. R. China
| | - Yunbo Zhao
- College of Chemistry, Liaoning University, Shenyang, 110036, P. R. China
| | - Ye Sun
- College of Chemistry, Liaoning University, Shenyang, 110036, P. R. China
| | - Xinxin Xie
- College of Chemistry, Liaoning University, Shenyang, 110036, P. R. China
| | - Shuo Wang
- College of Chemistry, Liaoning University, Shenyang, 110036, P. R. China
| | - Yao Zhang
- College of Chemistry, Liaoning University, Shenyang, 110036, P. R. China
| | - Lixin Xia
- College of Chemistry, Liaoning University, Shenyang, 110036, P. R. China
| | - Yu Zhao
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
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12
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Xu G, Yang G, Wang Y, Shao P, Yau JNN, Liu B, Zhao Y, Sun Y, Xie X, Wang S, Zhang Y, Xia L, Zhao Y. Stereoconvergent, Redox‐Neutral Access to Tetrahydroquinoxalines through Relay Epoxide Opening/Amination of Alcohols. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906199] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Guangda Xu
- College of Chemistry Liaoning University Shenyang 110036 P. R. China
| | - Guoqiang Yang
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Yue Wang
- College of Chemistry Liaoning University Shenyang 110036 P. R. China
| | - Pan‐Lin Shao
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Jia Ning Nicolette Yau
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Bing Liu
- College of Chemistry Liaoning University Shenyang 110036 P. R. China
| | - Yunbo Zhao
- College of Chemistry Liaoning University Shenyang 110036 P. R. China
| | - Ye Sun
- College of Chemistry Liaoning University Shenyang 110036 P. R. China
| | - Xinxin Xie
- College of Chemistry Liaoning University Shenyang 110036 P. R. China
| | - Shuo Wang
- College of Chemistry Liaoning University Shenyang 110036 P. R. China
| | - Yao Zhang
- College of Chemistry Liaoning University Shenyang 110036 P. R. China
| | - Lixin Xia
- College of Chemistry Liaoning University Shenyang 110036 P. R. China
| | - Yu Zhao
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
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13
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Feng GS, Shi L, Meng FJ, Chen MW, Zhou YG. Iridium-Catalyzed Asymmetric Hydrogenation of 4,6-Disubstituted 2-Hydroxypyrimidines. Org Lett 2018; 20:6415-6419. [PMID: 30270629 DOI: 10.1021/acs.orglett.8b02723] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
An efficient iridium-catalyzed hydrogenation of 4,6-disubstituted 2-hydroxypyrimidines has been achieved, giving chiral cyclic ureas with excellent diastereoselectivities and up to 96% ee of enantioselectivities. In the presence of the in situ generated hydrogen halide, the equilibrium of the lactame-lactime tautomerism of 2-hydroxypyrimidine is more toward the oxo form with lower aromaticity, which effectively improves the reactivity to facilitate hydrogenation. Moreover, the cyclic ureas could be readily converted into chiral 1,3-diamine derivatives without loss of optical purity.
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Affiliation(s)
- Guang-Shou Feng
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , P. R. China
| | - Lei Shi
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , P. R. China
| | - Fan-Jie Meng
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , P. R. China
| | - Mu-Wang Chen
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , P. R. China
| | - Yong-Gui Zhou
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , P. R. China.,Collaborative Innovation Centre of Chemical Science and Engineering , Tianjin 300071 , P. R. China
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14
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Yang P, Lim LH, Chuanprasit P, Hirao H, Zhou JS. Nickel-Catalyzed Enantioselective Reductive Amination of Ketones with Both Arylamines and Benzhydrazide. Angew Chem Int Ed Engl 2016; 55:12083-7. [DOI: 10.1002/anie.201606821] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Indexed: 01/01/2023]
Affiliation(s)
- Peng Yang
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Li Hui Lim
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Pratanphorn Chuanprasit
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Hajime Hirao
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Jianrong Steve Zhou
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
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15
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Yang P, Lim LH, Chuanprasit P, Hirao H, Zhou JS. Nickel-Catalyzed Enantioselective Reductive Amination of Ketones with Both Arylamines and Benzhydrazide. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201606821] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Peng Yang
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Li Hui Lim
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Pratanphorn Chuanprasit
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Hajime Hirao
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Jianrong Steve Zhou
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
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16
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Makida Y, Saita M, Kuramoto T, Ishizuka K, Kuwano R. Asymmetric Hydrogenation of Azaindoles: Chemo- and Enantioselective Reduction of Fused Aromatic Ring Systems Consisting of Two Heteroarenes. Angew Chem Int Ed Engl 2016; 55:11859-62. [DOI: 10.1002/anie.201606083] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Yusuke Makida
- Department of Chemistry; Faculty of Science, and International Research Center for Molecular Systems (IRCMS); Kyushu University; 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Masahiro Saita
- Department of Chemistry; Faculty of Science, and International Research Center for Molecular Systems (IRCMS); Kyushu University; 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Takahiro Kuramoto
- Department of Chemistry; Faculty of Science, and International Research Center for Molecular Systems (IRCMS); Kyushu University; 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Kentaro Ishizuka
- Department of Chemistry; Faculty of Science, and International Research Center for Molecular Systems (IRCMS); Kyushu University; 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Ryoichi Kuwano
- Department of Chemistry; Faculty of Science, and International Research Center for Molecular Systems (IRCMS); Kyushu University; 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
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17
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Makida Y, Saita M, Kuramoto T, Ishizuka K, Kuwano R. Asymmetric Hydrogenation of Azaindoles: Chemo- and Enantioselective Reduction of Fused Aromatic Ring Systems Consisting of Two Heteroarenes. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201606083] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yusuke Makida
- Department of Chemistry; Faculty of Science, and International Research Center for Molecular Systems (IRCMS); Kyushu University; 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Masahiro Saita
- Department of Chemistry; Faculty of Science, and International Research Center for Molecular Systems (IRCMS); Kyushu University; 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Takahiro Kuramoto
- Department of Chemistry; Faculty of Science, and International Research Center for Molecular Systems (IRCMS); Kyushu University; 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Kentaro Ishizuka
- Department of Chemistry; Faculty of Science, and International Research Center for Molecular Systems (IRCMS); Kyushu University; 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Ryoichi Kuwano
- Department of Chemistry; Faculty of Science, and International Research Center for Molecular Systems (IRCMS); Kyushu University; 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
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18
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Ikeda R, Kuwano R. Asymmetric Hydrogenation of Isoxazolium Triflates with a Chiral Iridium Catalyst. Chemistry 2016; 22:8610-8. [DOI: 10.1002/chem.201600732] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Indexed: 12/13/2022]
Affiliation(s)
- Ryuhei Ikeda
- Department of Chemistry, Faculty of Science and; International Research Center for Molecular Systems (IRCMS); Kyushu University; 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
| | - Ryoichi Kuwano
- Department of Chemistry, Faculty of Science and; International Research Center for Molecular Systems (IRCMS); Kyushu University; 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan
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19
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More GV, Bhanage BM. Chiral phosphoric acid catalyzed asymmetric transfer hydrogenation of quinolines in a sustainable solvent. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.tetasy.2015.09.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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21
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Iridium-catalyzed asymmetric reductive amination of ketones using an amidophosphite ligand. Russ Chem Bull 2015. [DOI: 10.1007/s11172-015-0861-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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22
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Zhang L, Qiu R, Xue X, Pan Y, Xu C, Li H, Xu L. Versatile (Pentamethylcyclopentadienyl)rhodium-2,2′-Bipyridine (Cp*Rh-bpy) Catalyst for Transfer Hydrogenation of N-Heterocycles in Water. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500491] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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23
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Balakrishna B, Núñez-Rico JL, Vidal-Ferran A. Substrate Activation in the Catalytic Asymmetric Hydrogenation ofN-Heteroarenes. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500588] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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24
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Ozolin DV, Lyubimov SE, Davankov VA. Assymmetric Ir-catalyzed hydrogenation of 2-methylindole using phosphite-type ligands. Russ Chem Bull 2015. [DOI: 10.1007/s11172-014-0754-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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25
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Kita Y, Yamaji K, Higashida K, Sathaiah K, Iimuro A, Mashima K. Enhancing Effects of Salt Formation on Catalytic Activity and Enantioselectivity for Asymmetric Hydrogenation of Isoquinolinium Salts by Dinuclear Halide-Bridged Iridium Complexes Bearing Chiral Diphosphine Ligands. Chemistry 2014; 21:1915-27. [DOI: 10.1002/chem.201405408] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Indexed: 01/17/2023]
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26
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Hopmann KH, Bayer A. Enantioselective imine hydrogenation with iridium-catalysts: Reactions, mechanisms and stereocontrol. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.01.023] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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27
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28
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Wysocki J, Ortega N, Glorius F. Asymmetrische Hydrierung disubstituierter Furane. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201310985] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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29
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Wysocki J, Ortega N, Glorius F. Asymmetric Hydrogenation of Disubstituted Furans. Angew Chem Int Ed Engl 2014; 53:8751-5. [DOI: 10.1002/anie.201310985] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Indexed: 12/14/2022]
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30
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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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31
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Hopkins BA, Wolfe JP. Enantioselective Synthesis of Tetrahydroquinolines, Tetrahydroquinoxalines, and Tetrahydroisoquinolines via Pd-Catalyzed Alkene Carboamination Reactions. Chem Sci 2014; 5:4840-4844. [PMID: 25431650 DOI: 10.1039/c4sc01327a] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
A catalyst composed of Pd2(dba)3 and (S)-Siphos-PE provides excellent results in Pd-catalyzed alkene carboamination reactions between aniline derivatives bearing pendant alkenes and aryl or alkenyl halides. These transformations generate tetrahydroquinolines and tetrahydroquinoxalines that contain quaternary carbon stereocenters with high levels of asymmetric induction. In addition this catalyst also effects the asymmetric synthesis of tetrahydroisoquinolines via related transformations of 2-allylbenzylamines. In contrast to most other approaches to the asymmetric synthesis of these compounds, which frequently involve functional group interconversion or a single C-C or C-N bond-forming event, the carboamination reactions generate both a C-N bond, a C-C bond, and a stereocenter.
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Affiliation(s)
- B A Hopkins
- University of Michigan, Department of Chemistry, 930 N. University Ave., Ann Arbor, MI 48109-1055, USA
| | - J P Wolfe
- University of Michigan, Department of Chemistry, 930 N. University Ave., Ann Arbor, MI 48109-1055, USA
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32
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Mashima K, Nagano T, Iimuro A, Yamaji K, Kita Y. Additive Effects on Asymmetric Hydrogenation of N-Heteroaromatics. HETEROCYCLES 2014. [DOI: 10.3987/rev-13-sr(s)2] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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33
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Shi F, Tan W, Zhang H, Li M, Ye Q, Ma G, Tu S, Li G. Asymmetric Organocatalytic Tandem Cyclization/Transfer Hydrogenation: A Synthetic Strategy for Enantioenriched Nitrogen Heterocycles. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300576] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Feng Shi
- School of Chemistry & Chemical Engineering, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
| | - Wei Tan
- School of Chemistry & Chemical Engineering, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
| | - Hong‐Hao Zhang
- School of Chemistry & Chemical Engineering, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
| | - Mei Li
- School of Chemistry & Chemical Engineering, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
| | - Qin Ye
- School of Chemistry & Chemical Engineering, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
| | - Guan‐Hua Ma
- School of Chemistry & Chemical Engineering, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
| | - Shu‐Jiang Tu
- School of Chemistry & Chemical Engineering, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, People's Republic of China
| | - Guigen Li
- Institute of Chemistry & BioMedical Sciences, Nanjing University, Nanjing 210093, People's Republic of China
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409‐1061, USA
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34
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Lyubimov SE, Ozolin DV, Ivanov PY, Melman A, Velezheva VS, Davankov VA. The Use of Phosphite-Type Ligands in the Ir-Catalyzed Asymmetric Hydrogenation of Heterocyclic Compounds. Chirality 2013; 26:56-60. [DOI: 10.1002/chir.22267] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Accepted: 10/08/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Sergey E. Lyubimov
- Institute of Organoelement Compounds; Russian Academy of Sciences; Moscow Russia
| | - Dmitry V. Ozolin
- Institute of Organoelement Compounds; Russian Academy of Sciences; Moscow Russia
| | - Pavel Yu Ivanov
- Institute of Organoelement Compounds; Russian Academy of Sciences; Moscow Russia
| | | | | | - Vadim A. Davankov
- Institute of Organoelement Compounds; Russian Academy of Sciences; Moscow Russia
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35
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Synthesis of new chiral 2-functionalized-1,2,3,4-tetrahydroquinoline derivatives via asymmetric hydrogenation of substituted quinolines. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.07.090] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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36
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Arai N, Saruwatari Y, Isobe K, Ohkuma T. Asymmetric Hydrogenation of Quinoxalines, Benzoxazines, and a Benzothiazine Catalyzed by Chiral Ruthenabicyclic Complexes. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300604] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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37
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Ortega N, Tang DTD, Urban S, Zhao D, Glorius F. Ruthenium-NHC-Catalyzed Asymmetric Hydrogenation of Indolizines: Access to Indolizidine Alkaloids. Angew Chem Int Ed Engl 2013; 52:9500-3. [DOI: 10.1002/anie.201302218] [Citation(s) in RCA: 95] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Revised: 05/08/2013] [Indexed: 11/06/2022]
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38
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Ortega N, Tang DTD, Urban S, Zhao D, Glorius F. Ruthenium-NHC-katalysierte asymmetrische Hydrierung von Indolizinen: Zugang zu Indolizidin-Alkaloiden. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302218] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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39
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Lee SH, Gutsulyak DV, Nikonov GI. Chemo- and Regioselective Catalytic Reduction of N-Heterocycles by Silane. Organometallics 2013. [DOI: 10.1021/om400269q] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Sun-Hwa Lee
- Chemistry Department, Brock University, 500 Glenridge Avenue,
St. Catharines, Ontario L2S 3A1, Canada
| | - Dmitry V. Gutsulyak
- Chemistry Department, Brock University, 500 Glenridge Avenue,
St. Catharines, Ontario L2S 3A1, Canada
| | - Georgii I. Nikonov
- Chemistry Department, Brock University, 500 Glenridge Avenue,
St. Catharines, Ontario L2S 3A1, Canada
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40
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Wang T, Chen F, Qin J, He YM, Fan QH. Asymmetric Ruthenium-Catalyzed Hydrogenation of 2- and 2,9-Substituted 1,10-Phenanthrolines. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201301830] [Citation(s) in RCA: 28] [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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41
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Wang T, Chen F, Qin J, He YM, Fan QH. Asymmetric Ruthenium-Catalyzed Hydrogenation of 2- and 2,9-Substituted 1,10-Phenanthrolines. Angew Chem Int Ed Engl 2013; 52:7172-6. [DOI: 10.1002/anie.201301830] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Revised: 04/14/2013] [Indexed: 11/05/2022]
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42
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Lyubimov SE, Ozolin DV, Pavlov AA, Fedorova IN, Velezheva VS, Davankov VA. Synthesis of new amidophosphite ligand and its application in Ir-catalyzed asymmetric hydrogenation of heterocyclic compounds. Russ Chem Bull 2013. [DOI: 10.1007/s11172-013-0202-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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43
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Bartoszewicz A, Ahlsten N, Martín-Matute B. Enantioselective Synthesis of Alcohols and Amines by Iridium-Catalyzed Hydrogenation, Transfer Hydrogenation, and Related Processes. Chemistry 2013; 19:7274-302. [DOI: 10.1002/chem.201202836] [Citation(s) in RCA: 138] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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44
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Fleischer S, Zhou S, Werkmeister S, Junge K, Beller M. Cooperative Iron-Brønsted Acid Catalysis: Enantioselective Hydrogenation of Quinoxalines and 2 H-1,4-Benzoxazines. Chemistry 2013; 19:4997-5003. [DOI: 10.1002/chem.201204236] [Citation(s) in RCA: 121] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Indexed: 11/06/2022]
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45
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Iimuro A, Yamaji K, Kandula S, Nagano T, Kita Y, Mashima K. Asymmetric Hydrogenation of Isoquinolinium Salts Catalyzed by Chiral Iridium Complexes: Direct Synthesis for Optically Active 1,2,3,4-Tetrahydroisoquinolines. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201207748] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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46
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Iimuro A, Yamaji K, Kandula S, Nagano T, Kita Y, Mashima K. Asymmetric hydrogenation of isoquinolinium salts catalyzed by chiral iridium complexes: direct synthesis for optically active 1,2,3,4-tetrahydroisoquinolines. Angew Chem Int Ed Engl 2013; 52:2046-50. [PMID: 23303624 DOI: 10.1002/anie.201207748] [Citation(s) in RCA: 132] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Revised: 11/12/2012] [Indexed: 11/05/2022]
Affiliation(s)
- Atsuhiro Iimuro
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, CREST, Toyonaka, Osaka 560-8531, Japan
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47
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Advances in Transition Metal-Catalyzed Asymmetric Hydrogenation of Heteroaromatic Compounds. STEREOSELECTIVE FORMATION OF AMINES 2013; 343:145-90. [DOI: 10.1007/128_2013_480] [Citation(s) in RCA: 103] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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48
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Urban S, Beiring B, Ortega N, Paul D, Glorius F. Asymmetric hydrogenation of thiophenes and benzothiophenes. J Am Chem Soc 2012; 134:15241-4. [PMID: 22934527 DOI: 10.1021/ja306622y] [Citation(s) in RCA: 102] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An efficient and highly asymmetric ruthenium-N-heterocyclic carbene-catalyzed hydrogenation of substituted thiophenes and benzothiophenes is described, providing a new strategy for the formation of valuable enantiomerically pure tetrahydrothiophenes and 2,3-dihydrobenzothiophenes.
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Affiliation(s)
- Slawomir Urban
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
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49
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Nagano T, Iimuro A, Schwenk R, Ohshima T, Kita Y, Togni A, Mashima K. Additive Effects of Amines on Asymmetric Hydrogenation of Quinoxalines Catalyzed by Chiral Iridium Complexes. Chemistry 2012; 18:11578-92. [DOI: 10.1002/chem.201201366] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2012] [Indexed: 11/06/2022]
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50
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Shi L, Ye ZS, Cao LL, Guo RN, Hu Y, Zhou YG. Enantioselective Iridium-Catalyzed Hydrogenation of 3,4-Disubstituted Isoquinolines. Angew Chem Int Ed Engl 2012; 51:8286-9. [DOI: 10.1002/anie.201203647] [Citation(s) in RCA: 103] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Indexed: 11/08/2022]
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