1
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Meng X, Lan S, Chen T, Luo H, Zhu L, Chen N, Liu J, Yang S, Cotman AE, Zhang Q, Fang X. Catalytic Asymmetric Transfer Hydrogenation of Acylboronates: BMIDA as the Privileged Directing Group. J Am Chem Soc 2024; 146:20357-20369. [PMID: 38869937 DOI: 10.1021/jacs.4c05924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2024]
Abstract
Developing a general, highly efficient, and enantioselective catalytic method for the synthesis of chiral alcohols is still a formidable challenge. We report in this article the asymmetric transfer hydrogenation (ATH) of N-methyliminodiacetyl (MIDA) acylboronates as a general substrate-independent entry to enantioenriched secondary alcohols. ATH of acyl-MIDA-boronates with (het)aryl, alkyl, alkynyl, alkenyl, and carbonyl substituents delivers a variety of enantioenriched α-boryl alcohols. The latter are used in a range of stereospecific transformations based on the boron moiety, enabling the synthesis of carbinols with two closely related α-substituents, which cannot be obtained with high enantioselectivities using direct asymmetric hydrogenation methods, such as the (R)-cloperastine intermediate. Computational studies illustrate that the BMIDA group is a privileged enantioselectivity-directing group in Noyori-Ikariya ATH compared to the conventionally used aryl and alkynyl groups due to the favorable CH-O attractive electrostatic interaction between the η6-arene-CH of the catalyst and the σ-bonded oxygen atoms in BMIDA. The work expands the domain of conventional ATH and shows its huge potential in addressing challenges in symmetric synthesis.
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Affiliation(s)
- Xiangjian Meng
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
- Fujian Normal University, Fuzhou 350007, China
| | - Shouang Lan
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Ting Chen
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Haotian Luo
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Lixuan Zhu
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Nanchu Chen
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Jinggong Liu
- Orthopedics Department, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou 510120, China
| | - Shuang Yang
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Andrej Emanuel Cotman
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva Cesta 7, SI-1000 Ljubljana, Slovenia
| | - Qi Zhang
- Hefei University of Technology, Hefei 230009, China
| | - Xinqiang Fang
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
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2
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Li L, Ma N, Chen Q, Sun H, Tian J, Xu Q, Li C, Zhang L. Iridium-catalyzed asymmetric transfer hydrogenation of aromatic ketones with a cinchona alkaloid derived NNP ligand. Org Biomol Chem 2022; 20:7936-7941. [PMID: 36177951 DOI: 10.1039/d2ob01422j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An iridium complex generated in situ from [Ir(COD)Cl]2 and a cinchona alkaloid derived NNP ligand has been developed for the asymmetric transfer hydrogenation of aromatic ketones. In this study, 30 aromatic ketones and heteroaryl ketones were hydrogenated to produce valuable chiral alcohols with up to 99% ee using i-PrOH as the hydrogen source and the solvent. The easily prepared Ir(L8)(COD)Cl also exhibited excellent activity and enantioselectivity in asymmetric transfer hydrogenation of aromatic ketones with a high S/C ratio (up to 2000).
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Affiliation(s)
- Linlin Li
- State Key Laboratory of Functions and Applications of Medicinal Plants & School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550004, People's Republic of China.
| | - Nana Ma
- State Key Laboratory of Functions and Applications of Medicinal Plants & School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550004, People's Republic of China.
| | - Qian Chen
- State Key Laboratory of Functions and Applications of Medicinal Plants & School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550004, People's Republic of China.
| | - Hao Sun
- State Key Laboratory of Functions and Applications of Medicinal Plants & School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550004, People's Republic of China.
| | - Jie Tian
- State Key Laboratory of Functions and Applications of Medicinal Plants & School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550004, People's Republic of China.
| | - Qian Xu
- State Key Laboratory of Functions and Applications of Medicinal Plants & School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550004, People's Republic of China.
| | - Chun Li
- State Key Laboratory of Functions and Applications of Medicinal Plants & School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550004, People's Republic of China.
| | - Lin Zhang
- State Key Laboratory of Functions and Applications of Medicinal Plants & School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550004, People's Republic of China.
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3
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Zheng Y, Wills M. Asymmetric transfer hydrogenation of boronic acid pinacol ester (Bpin)-containing acetophenones. Org Biomol Chem 2022; 20:3742-3746. [PMID: 35438123 DOI: 10.1039/d2ob00569g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A series of Bpin-containing acetophenone derivatives were reduced by asymmetric transfer hydrogenation (ATH), using Noyori-Ikariya catalysts, with formic acid/triethylamine, to alcohols in high ee when the Bpin is in the para- or meta-position. Substrates containing ortho-Bpin groups were reduced in lower ee, with formation of a cyclic boron-containing group. The products were converted to substituted derivatives using Pd-catalysed coupling reactions. The results represent the first examples of ATH of Bpin-containing ketones.
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Affiliation(s)
- Ye Zheng
- Department of Chemistry, The University of Warwick, Coventry, CV4 7AL, UK.
| | - Martin Wills
- Department of Chemistry, The University of Warwick, Coventry, CV4 7AL, UK.
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4
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Zheng Y, Martinez‐Acosta JA, Khimji M, Barbosa LCA, Clarkson GJ, Wills M. Asymmetric Transfer Hydrogenation of Aryl Heteroaryl Ketones using Noyori‐Ikariya Catalysts. ChemCatChem 2021. [DOI: 10.1002/cctc.202101027] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Ye Zheng
- Department of Chemistry The University of Warwick Coventry CV4 7AL UK
| | - Jaime A. Martinez‐Acosta
- Universidade Federal de Minas Gerais Dept Chem-ICEx Av Presidente Antonio Carlos 6627 Campus Pampulha BR-31270901 Belo Horizonte MG Brazil
| | - Mohammed Khimji
- Department of Chemistry The University of Warwick Coventry CV4 7AL UK
| | - Luiz C. A. Barbosa
- Universidade Federal de Minas Gerais Dept Chem-ICEx Av Presidente Antonio Carlos 6627 Campus Pampulha BR-31270901 Belo Horizonte MG Brazil
| | - Guy J. Clarkson
- Department of Chemistry The University of Warwick Coventry CV4 7AL UK
| | - Martin Wills
- Department of Chemistry The University of Warwick Coventry CV4 7AL UK
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5
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Gediya SK, Vyas VK, Clarkson GJ, Wills M. Asymmetric Transfer Hydrogenation of α-Keto Amides; Highly Enantioselective Formation of Malic Acid Diamides and α-Hydroxyamides. Org Lett 2021; 23:7803-7807. [PMID: 34586818 DOI: 10.1021/acs.orglett.1c02830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The asymmetric transfer hydrogenation (ATH) of α-keto-1,4-diamides using a tethered Ru/TsDPEN catalyst was achieved in high ee. Studies on derivatives identified the structural elements which lead to the highest enantioselectivities in the products. The α-keto-amide reduction products have been converted to a range of synthetically valuable derivatives.
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Affiliation(s)
- Shweta K Gediya
- Department of Chemistry, The University of Warwick, Coventry CV4 7AL, U.K
| | - Vijyesh K Vyas
- Department of Chemistry, The University of Warwick, Coventry CV4 7AL, U.K
| | - Guy J Clarkson
- Department of Chemistry, The University of Warwick, Coventry CV4 7AL, U.K
| | - Martin Wills
- Department of Chemistry, The University of Warwick, Coventry CV4 7AL, U.K
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6
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Mishra AA, Bhanage BM. Ru-TsDPEN catalysts and derivatives in asymmetric transfer hydrogenation reactions. Chirality 2021; 33:337-378. [PMID: 34010454 DOI: 10.1002/chir.23317] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 03/28/2021] [Accepted: 04/16/2021] [Indexed: 12/16/2022]
Abstract
This review summarizes current developments, novel synthetic routes for Ruthenium tethered chiral catalyst, and its derivatives along with its application in asymmetric synthesis. The review also covers derivatization in tethering unit, modification in N-monofunctionalized ligand as well as ligation of other ligand with Ru metal in chiral catalyst. Apparently, the effect of a modified tethered catalyst in the enantioselective synthesis of chiral products as well as in synthetic chemistry is also discussed in detail.
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Affiliation(s)
- Ashish A Mishra
- Department of Chemistry, Institute of Chemical Technology, Mumbai, India
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7
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Dub PA, Tkachenko NV, Vyas VK, Wills M, Smith JS, Tretiak S. Enantioselectivity in the Noyori–Ikariya Asymmetric Transfer Hydrogenation of Ketones. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00201] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Pavel A. Dub
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Nikolay V. Tkachenko
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
- Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322, United States
| | - Vijyesh K. Vyas
- Department of Chemistry, The University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Martin Wills
- Department of Chemistry, The University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Justin S. Smith
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Sergei Tretiak
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
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8
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Vyas VK, Clarkson GJ, Wills M. Enantioselective Synthesis of Bicyclopentane-Containing Alcohols via Asymmetric Transfer Hydrogenation. Org Lett 2021; 23:3179-3183. [PMID: 33819426 DOI: 10.1021/acs.orglett.1c00889] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Compounds a containing bicyclo[1.1.1]pentane (BCP) adjacent to a chiral center can be prepared with high enantiomeric excess through asymmetric transfer hydrogenation (ATH) of adjacent ketones. In the reduction step, the BCP occupies the position distant from the η6-arene of the catalyst. The reduction was applied to the synthesis of a BCP analogue of the antihistamine drug neobenodine.
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Affiliation(s)
- Vijyesh K Vyas
- Department of Chemistry, The University of Warwick, Coventry CV4 7AL, U.K
| | - Guy J Clarkson
- Department of Chemistry, The University of Warwick, Coventry CV4 7AL, U.K
| | - Martin Wills
- Department of Chemistry, The University of Warwick, Coventry CV4 7AL, U.K
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9
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Mishra AA, Bhanage BM. Ru-Tethered ( R,R)-TsDPEN with DMAB as an efficient catalytic system for high enantioselective one-pot synthesis of chiral β-aminol via asymmetric transfer hydrogenation. NEW J CHEM 2021. [DOI: 10.1039/d0nj06108e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work reflects Ru-tethered-TsDPEN as an active chiral catalyst for one pot selective synthesis of optically active α-substituted alcohols and its derivatives from α-bromo ketones in the presence of dimethylamine borane (DMAB) as the hydrogen source.
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Affiliation(s)
- Ashish A. Mishra
- Department of Chemistry
- Institute of Chemical Technology
- Nathalal Parekh Marg
- Mumbai 400019
- India
| | - Bhalchandra M. Bhanage
- Department of Chemistry
- Institute of Chemical Technology
- Nathalal Parekh Marg
- Mumbai 400019
- India
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10
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Zheng Y, Clarkson GJ, Wills M. Asymmetric Transfer Hydrogenation of o-Hydroxyphenyl Ketones: Utilizing Directing Effects That Optimize the Asymmetric Synthesis of Challenging Alcohols. Org Lett 2020; 22:3717-3721. [DOI: 10.1021/acs.orglett.0c01213] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ye Zheng
- Department of Chemistry, The University of Warwick, Coventry CV4 7AL, U.K
| | - Guy J. Clarkson
- Department of Chemistry, The University of Warwick, Coventry CV4 7AL, U.K
| | - Martin Wills
- Department of Chemistry, The University of Warwick, Coventry CV4 7AL, U.K
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11
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Mishra AA, Chaurasia SR, Bhanage BM. Ru–g-C 3N 4 as a highly active heterogeneous catalyst for transfer hydrogenation of α-keto amide into β-aminol or α-hydroxyl amide. NEW J CHEM 2020. [DOI: 10.1039/d0nj01674h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
This work reports a sustainable route for the catalytic transfer hydrogenation (CTH) of α-keto amide into β-aminol via an efficient heterogeneous catalyst wherein ruthenium is incorporated on an active graphite sheet of a carbon nitride support (Ru–g-C3N4).
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Affiliation(s)
- Ashish A. Mishra
- Department of Chemistry
- Institute of Chemical Technology
- Mumbai 400019
- India
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12
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Mishra AA, Bhanage BM. Electronic And Steric Effect Favored Selective Synthesis Of Asymmetric (‐)
N
‐Aryl Mandelamides. ChemistrySelect 2019. [DOI: 10.1002/slct.201904614] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Ashish A. Mishra
- Department of ChemistryInstitute of Chemical TechnologyNathalal Parekh Marg,Matunga Mumbai 400019 India
| | - Bhalchandra M. Bhanage
- Department of ChemistryInstitute of Chemical TechnologyNathalal Parekh Marg,Matunga Mumbai 400019 India
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13
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Zhang K, Yang Y, Liu H, Liu Q, Lv J, Zhou H. Enantioselective Synthesis of 2‐Hydroxyalkyl Diarylphosphinates by Ruthenium‐Catalyzed Asymmetric Transfer Hydrogenation. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900569] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kaili Zhang
- Research Center of Green Pharmaceutical Technology and Process, Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences China Three Gorges University Yichang 443002 People's Republic of China
| | - Yuping Yang
- Yichang Humanwell Pharmaceutical Co., Ltd. Yichang 443005 People's Republic of China
| | - Huan Liu
- Research Center of Green Pharmaceutical Technology and Process, Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences China Three Gorges University Yichang 443002 People's Republic of China
| | - Qixing Liu
- Research Center of Green Pharmaceutical Technology and Process, Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences China Three Gorges University Yichang 443002 People's Republic of China
| | - Jinliang Lv
- Yichang Humanwell Pharmaceutical Co., Ltd. Yichang 443005 People's Republic of China
| | - Haifeng Zhou
- Research Center of Green Pharmaceutical Technology and Process, Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences China Three Gorges University Yichang 443002 People's Republic of China
- Yichang Humanwell Pharmaceutical Co., Ltd. Yichang 443005 People's Republic of China
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14
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Kandasamy M, Ganesan B, Hung MY, Lin WY. Fast and Efficient Continuous Flow Method for the Synthesis of Ynones and Pyrazoles. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900468] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Mohanraj Kandasamy
- Department of Medicinal and Applied Chemistry; Kaohsiung Medical University; 807 Kaohsiung Taiwan
| | - Balaji Ganesan
- Department of Medicinal and Applied Chemistry; Kaohsiung Medical University; 807 Kaohsiung Taiwan
| | - Min-Yuan Hung
- Centre for Research Resources and Development; Kaohsiung Medical University; 807 Kaohsiung Taiwan
| | - Wei-Yu Lin
- Department of Medicinal and Applied Chemistry; Kaohsiung Medical University; 807 Kaohsiung Taiwan
- Department of Medical Research; Kaohsiung Medical University Hospital; 807 Kaohsiung Taiwan
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15
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Mishra AA, Bhanage BM. Zirconium-MOF-catalysed selective synthesis of α-hydroxyamide via the transfer hydrogenation of α-ketoamide. NEW J CHEM 2019. [DOI: 10.1039/c9nj00900k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work reports the synthesis of α-hydroxy amide and its derivatives using zirconium-based metal–organic frameworks (Zr-MOFs).
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Affiliation(s)
- Ashish A. Mishra
- Department of Chemistry
- Institute of Chemical Technology
- Mumbai 400019
- India
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16
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Luo Z, Sun G, Zhou Z, Liu G, Luan B, Lin Y, Zhang L, Wang Z. Stereogenic cis-2-substituted-N-acetyl-3-hydroxy-indolines via ruthenium(ii)-catalyzed dynamic kinetic resolution-asymmetric transfer hydrogenation. Chem Commun (Camb) 2018; 54:13503-13506. [PMID: 30338771 DOI: 10.1039/c8cc07336h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
Ruthenium(ii)-catalyzed dynamic kinetic resolution-asymmetric transfer hydrogenation of racemic 2-substituted-N-acetyl-3-oxoindolines to cis-2-substituted-N-acetyl-3-hydroxyindolines is reported. Using the homochiral {Ru[TfDPEN](p-cymene)} catalyst with S/C = 400 in a HCO2H/Et3N mixture, up to >99.9% ee and >99 : 1 dr are obtained with high yields (79-98%). This method provides the first example of preparing enantiomerically pure indolines through asymmetric transfer hydrogenation (ATH).
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Affiliation(s)
- Zhonghua Luo
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510640, P. R. China.
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17
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Knighton RC, Vyas VK, Mailey LH, Bhanage BM, Wills M. Asymmetric transfer hydrogenation of acetophenone derivatives using 2-benzyl-tethered ruthenium (II)/TsDPEN complexes bearing η6-(p-OR) (R = H, iPr, Bn, Ph) ligands. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.08.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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18
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Vyas V, Srivastava P, Bhatt P, Shende V, Ghosh P, Bhanage BM. Highly Enantioselective One-Pot Synthesis of Chiral β-Heterosubstituted Alcohols via Ruthenium-Prolinamide-Catalyzed Asymmetric Transfer Hydrogenation. ACS OMEGA 2018; 3:12737-12745. [PMID: 31458000 PMCID: PMC6644779 DOI: 10.1021/acsomega.8b01316] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 09/26/2018] [Indexed: 06/10/2023]
Abstract
The utility of a chiral Ru-prolinamide catalytic system has been demonstrated in one-pot synthesis of optically active β-triazolylethanol and β-hydroxy sulfone derivatives. The said methodology proceeds through asymmetric transfer hydrogenation of in situ formed ketones of the corresponding chiral products. Various chiral prolinamide ligands were screened, and ligand L6 with isopropyl groups substituted at the ortho position has shown excellent activity at 60 °C in aqueous medium producing up to 95% yield and 99.9% enantioselectivity.
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19
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Matsunami A, Ikeda M, Nakamura H, Yoshida M, Kuwata S, Kayaki Y. Accessible Bifunctional Oxy-Tethered Ruthenium(II) Catalysts for Asymmetric Transfer Hydrogenation. Org Lett 2018; 20:5213-5218. [PMID: 30102047 DOI: 10.1021/acs.orglett.8b02157] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
A concise synthesis of new oxy-tethered ruthenium complexes effective for the asymmetric transfer hydrogenation of aromatic ketones is described. The oxy-tether was constructed via a defluorinative etherification arising from an intramolecular nucleophilic substitution of a perfluorinated phenylsulfonyl substituent. The obtained tethered complexes exhibited desirable catalytic activity and selectivity, especially in the asymmetric transfer hydrogenation of functionalized aromatic ketones. The robustness and rigidity of the tether contribute to their superior catalytic performance relative to the nontethered prototype complex.
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Affiliation(s)
- Asuka Matsunami
- Department of Chemistry and Biological Science, College of Science and Engineering , Aoyama Gakuin University , 5-10-1 Fuchinobe, Chuo-ku , Sagamihara 252-5258 , Japan
| | - Marika Ikeda
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology , Tokyo Institute of Technology , 2-12-1-E4-1 O-okayama, Meguro-ku , Tokyo 152-8552 , Japan
| | - Hitomi Nakamura
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology , Tokyo Institute of Technology , 2-12-1-E4-1 O-okayama, Meguro-ku , Tokyo 152-8552 , Japan
| | - Minori Yoshida
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology , Tokyo Institute of Technology , 2-12-1-E4-1 O-okayama, Meguro-ku , Tokyo 152-8552 , Japan
| | - Shigeki Kuwata
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology , Tokyo Institute of Technology , 2-12-1-E4-1 O-okayama, Meguro-ku , Tokyo 152-8552 , Japan
| | - Yoshihito Kayaki
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology , Tokyo Institute of Technology , 2-12-1-E4-1 O-okayama, Meguro-ku , Tokyo 152-8552 , Japan
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20
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Zhang YM, Yuan ML, Liu WP, Xie JH, Zhou QL. Iridium-Catalyzed Asymmetric Transfer Hydrogenation of Alkynyl Ketones Using Sodium Formate and Ethanol as Hydrogen Sources. Org Lett 2018; 20:4486-4489. [PMID: 30035549 DOI: 10.1021/acs.orglett.8b01787] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A green and efficient iridium-catalyzed asymmetric transfer hydrogenation of alkynyl ketones to chiral propargylic alcohols has been developed. By using sodium formate and ethanol as hydrogen sources, a series of alkynyl ketones were hydrogenated by chiral spiro iridium catalyst ( S)-1b to provide optically active chiral propargylic alcohols with up to 98% ee under base-free conditions. This protocol provides a practical and sustainable method for the preparation of optically active propargylic alcohols.
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Affiliation(s)
- Yang-Ming Zhang
- State Key Laboratory and Institute of Elemento-organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Ming-Lei Yuan
- State Key Laboratory and Institute of Elemento-organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Wei-Peng Liu
- State Key Laboratory and Institute of Elemento-organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Jian-Hua Xie
- State Key Laboratory and Institute of Elemento-organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Qi-Lin Zhou
- State Key Laboratory and Institute of Elemento-organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
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Link A, Sparr C. Remote Central-to-Axial Chirality Conversion: Direct Atroposelective Ester to Biaryl Transformation. Angew Chem Int Ed Engl 2018; 57:7136-7139. [DOI: 10.1002/anie.201803472] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Achim Link
- Department of Chemistry; University of Basel; St. Johanns-Ring 19 4056 Basel Switzerland
| | - Christof Sparr
- Department of Chemistry; University of Basel; St. Johanns-Ring 19 4056 Basel Switzerland
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Link A, Sparr C. Remote Central-to-Axial Chirality Conversion: Direct Atroposelective Ester to Biaryl Transformation. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803472] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Achim Link
- Department of Chemistry; University of Basel; St. Johanns-Ring 19 4056 Basel Switzerland
| | - Christof Sparr
- Department of Chemistry; University of Basel; St. Johanns-Ring 19 4056 Basel Switzerland
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