1
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Duan Y, Zhong W, Zeng Z, Feng J, Xu J, Yang F, Liu J. Iodine-promoted transfer of dihydrogen from ketones to alkenes, triphenylmethyl, and diphenylmethyl derivatives. Chem Commun (Camb) 2023; 60:75-78. [PMID: 38018515 DOI: 10.1039/d3cc03409g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
Herein, a novel class of transfer hydrogenation agent, cycloheptanone, was successfully employed in metal-free hydrogenation facilitated by iodine. A series of alkenes, triphenylmethyl derivatives, and diphenylmethyl derivatives were reduced to the desired compounds in moderate to excellent yields. The transfer hydrodeuteration of alkenes using α-deuterated cyclododecanone exhibited high regioselectivity. Preliminary mechanism studies confirmed the origins of the two hydrogen atoms involved in the reduction of alkenes. The current study paves the way for the use of ketones as unique transfer hydrogenation agents in chemical synthesis.
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Affiliation(s)
- Yiping Duan
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Wenyi Zhong
- Department of Organic Chemistry, School of Science, China Pharmaceutical University, Nanjing, 210009, P. R. China.
| | - Zhaolan Zeng
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Jiajie Feng
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Jinyi Xu
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Fulai Yang
- Department of Organic Chemistry, School of Science, China Pharmaceutical University, Nanjing, 210009, P. R. China.
| | - Jie Liu
- Department of Organic Chemistry, School of Science, China Pharmaceutical University, Nanjing, 210009, P. R. China.
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2
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Nilova A, Mannchen MD, Noel AN, Semenova E, Grenning AJ. Vicinal stereocenters via asymmetric allylic alkylation and Cope rearrangement: a straightforward route to functionally and stereochemically rich heterocycles. Chem Sci 2023; 14:2755-2762. [PMID: 36908968 PMCID: PMC9993902 DOI: 10.1039/d2sc07021a] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 02/13/2023] [Indexed: 02/16/2023] Open
Abstract
An asymmetric allylic alkylation/Cope rearrangement (AAA/[3,3]) capable of stereoselectively constructing vicinal stereocenters has been developed. Strategically integrated 4-methylation on the 3,3-dicyano-1,5-diene controls stereoselectivity and drives Cope rearrangement equilibrium in the forward direction. The AAA/[3,3] sequence rapidly converts abundant achiral and racemic starting materials into valuable (hetero)cycloalkane building blocks bearing significant functional and stereochemical complexity, highlighting the value of (hetero)cyclohexylidenemalononitriles as launching points for complex heterocycle synthesis. On this line, the resulting alkylidenemalononitrile moiety can be readily converted into amides via Hayashi-Lear amidation to ultimately yield amido-piperidines, tropanes, and related scaffolds with 3-5 stereocenters and drug-like functionality.
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Affiliation(s)
- Aleksandra Nilova
- Department of Chemistry, University of Florida PO Box 117200 Gainesville 32611 FL USA
| | - Michael D Mannchen
- Department of Chemistry, University of Florida PO Box 117200 Gainesville 32611 FL USA
| | - Abdias N Noel
- Department of Chemistry, University of Florida PO Box 117200 Gainesville 32611 FL USA
| | - Evgeniya Semenova
- Department of Chemistry, University of Florida PO Box 117200 Gainesville 32611 FL USA
| | - Alexander J Grenning
- Department of Chemistry, University of Florida PO Box 117200 Gainesville 32611 FL USA
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3
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Harawa V, Thorpe TW, Marshall JR, Sangster JJ, Gilio AK, Pirvu L, Heath RS, Angelastro A, Finnigan JD, Charnock SJ, Nafie JW, Grogan G, Whitehead RC, Turner NJ. Synthesis of Stereoenriched Piperidines via Chemo-Enzymatic Dearomatization of Activated Pyridines. J Am Chem Soc 2022; 144:21088-21095. [DOI: 10.1021/jacs.2c07143] [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)
- Vanessa Harawa
- Department of Chemistry, University of Manchester, Manchester Institute of Biotechnology, 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - Thomas W. Thorpe
- Department of Chemistry, University of Manchester, Manchester Institute of Biotechnology, 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - James R. Marshall
- Department of Chemistry, University of Manchester, Manchester Institute of Biotechnology, 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - Jack J. Sangster
- Department of Chemistry, University of Manchester, Manchester Institute of Biotechnology, 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - Amelia K. Gilio
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
| | - Lucian Pirvu
- Department of Chemistry, University of Manchester, Manchester Institute of Biotechnology, 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - Rachel S. Heath
- Department of Chemistry, University of Manchester, Manchester Institute of Biotechnology, 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - Antonio Angelastro
- Department of Chemistry, University of Manchester, Manchester Institute of Biotechnology, 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - James D. Finnigan
- Prozomix, Building 4, West End Ind. Estate, Haltwhistle NE49 9HA, United Kingdom
| | - Simon J. Charnock
- Prozomix, Building 4, West End Ind. Estate, Haltwhistle NE49 9HA, United Kingdom
| | - Jordan W. Nafie
- BioTools, Inc., 17546 Bee Line Highway, Jupiter, Florida 33478, United States
| | - Gideon Grogan
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
| | - Roger C. Whitehead
- Department of Chemistry, University of Manchester, Manchester Institute of Biotechnology, 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - Nicholas J. Turner
- Department of Chemistry, University of Manchester, Manchester Institute of Biotechnology, 131 Princess Street, Manchester M1 7DN, United Kingdom
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4
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Choi A, Meijer AJHM, Silvestri IP, Coldham I. Kinetic Resolution of 2-Aryl-4-methylenepiperidines toward Enantioenriched Functionalizable Piperidine Fragments. J Org Chem 2022; 87:8819-8823. [PMID: 35699313 PMCID: PMC9490820 DOI: 10.1021/acs.joc.2c00862] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
![]()
The
base n-BuLi with sparteine allows a kinetic
resolution of N-Boc-2-aryl-4-methylenepiperidines.
The 2,2-disubstituted products and recovered starting materials were
isolated with high enantiomeric ratios. From VT-NMR spectroscopy and
DFT studies, the rate of rotation of the N-Boc group
is fast. Lithiation and trapping of the enantioenriched starting materials
gave 2,2-disubstituted piperidines with retention of stereochemistry.
Functionalization of the 4-methylene group led to a variety of 2,4-disubstituted
piperidines without loss of enantiopurity that could be useful building
blocks for drug discovery.
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Affiliation(s)
- Anthony Choi
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, U.K
| | - Anthony J H M Meijer
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, U.K
| | | | - Iain Coldham
- Department of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, U.K
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5
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Yin C, Pan Y, Zhang X, Yin Q. Catalytic Asymmetric Hydrogenation of Tetrasubstituted Unsaturated Lactams: An Efficient Approach to Enantioenriched 3,4-Disubstituted Piperidines. Org Lett 2022; 24:675-680. [PMID: 35005963 DOI: 10.1021/acs.orglett.1c04132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Asymmetric hydrogenation of tetrasubstituted alkenes remains a formidable challenge in asymmetric catalysis. We report herein an unprecedented Rh-catalyzed enantioselective and diastereoselective hydrogenation of easily accessed α,β-disubstituted unsaturated lactams to afford synthetically valuable chiral lactams with 1,2-consecutive stereocenters. The reaction could be performed on the gram scale, and the products could be concisely transformed to enantiomerically pure trans-3,4-disubstituted piperidines, which are prevalent structural units in medicinal agents.
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Affiliation(s)
- Congcong Yin
- Guangdong Provincial Key Laboratory of Catalysis, Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Yingmin Pan
- Guangdong Provincial Key Laboratory of Catalysis, Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Xumu Zhang
- Guangdong Provincial Key Laboratory of Catalysis, Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Qin Yin
- Shenzhen Institute of Advanced Technology, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shenzhen, Guangdong 518055, China
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6
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Li M, Zhang J, Zou Y, Zhou F, Zhang Z, Zhang W. Asymmetric hydrogenation for the synthesis of 2-substituted chiral morpholines. Chem Sci 2021; 12:15061-15066. [PMID: 34909146 PMCID: PMC8612400 DOI: 10.1039/d1sc04288b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 10/26/2021] [Indexed: 12/17/2022] Open
Abstract
Asymmetric hydrogenation of unsaturated morpholines has been developed by using a bisphosphine-rhodium catalyst bearing a large bite angle. With this approach, a variety of 2-substituted chiral morpholines could be obtained in quantitative yields and with excellent enantioselectivities (up to 99% ee). The hydrogenated products could be transformed into key intermediates for bioactive compounds. 2-Substituted chiral morpholines were synthesized via a newly developed asymmetric hydrogenation of dehydromorpholines catalyzed by a bisphosphine–rhodium complex bearing a large bite angle.![]()
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Affiliation(s)
- Mingxu Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Jian Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Yashi Zou
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Fengfan Zhou
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Zhenfeng Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmacy, Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China .,Frontier Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
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7
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Sen A, Chikkali SH. C 1-Symmetric diphosphorus ligands in metal-catalyzed asymmetric hydrogenation to prepare chiral compounds. Org Biomol Chem 2021; 19:9095-9137. [PMID: 34617539 DOI: 10.1039/d1ob01207j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Asymmetric hydrogenation has remained an important and challenging research area in industry as well as academia due to its high atom economy and ability to induce chirality. Among several types of ligands, chiral bidentate phosphine ligands have played a pivotal role in developing asymmetric hydrogenation. Although C2-symmetric chiral bidentate phosphine ligands have dominated the field, it has been found that several C1-symmetric ligands are equally effective and, in many cases, have outperformed their C2-symmetric counterparts. This review evaluates the possibility of the use of C1-symmetric diphosphorus ligands in asymmetric hydrogenation to produce chiral compounds. The recent strategies and advances in the application of C1-symmetric diphosphorus ligands in the metal-catalyzed asymmetric hydrogenation of a variety of CC bonds have been summarized. The potential of diphosphorus ligands in asymmetric hydrogenation to produce pharmaceutical intermediates, bioactive molecules, drug molecules, agrochemicals, and fragrances is discussed. Although asymmetric hydrogenation appears to be a problem that has been resolved, a deep dive into the recent literature reveals that there are several challenges that are yet to be addressed. The current asymmetric hydrogenation methods mostly employ precious metals, which are depleting at a fast pace. Therefore, scientific interventions to perform asymmetric hydrogenation using base metals or earth-abundant metals that can compete with established precious metals hold significant potential.
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Affiliation(s)
- Anirban Sen
- Polyolefin Lab, Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune 411008, India. .,Academy of Scientific and Innovative Research (AcSIR), Sector 19, Kamla Nehru Nagar, Ghaziabad 201002, U. P., India
| | - Samir H Chikkali
- Polyolefin Lab, Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune 411008, India. .,Academy of Scientific and Innovative Research (AcSIR), Sector 19, Kamla Nehru Nagar, Ghaziabad 201002, U. P., India
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8
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Zhao Y, Ding YX, Wu B, Zhou YG. Nickel-Catalyzed Asymmetric Hydrogenation for Kinetic Resolution of [2.2]Paracyclophane-Derived Cyclic N-Sulfonylimines. J Org Chem 2021; 86:10788-10798. [PMID: 34264081 DOI: 10.1021/acs.joc.1c01011] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Nickel-catalyzed asymmetric hydrogenation for kinetic resolution of [2.2]paracyclophane-derived cyclic N-sulfonylimines was successfully developed. High selectivity factors were observed in most cases (s up to 89), providing the recovered materials and hydrogenation products in good yields with high levels of enantiopurity. The recovered materials and hydrogenation products are useful synthetic intermediates for the synthesis of planar chiral [2.2]paracyclophane-based compounds.
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Affiliation(s)
- Yang Zhao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People's Republic of China.,University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Yi-Xuan Ding
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People's Republic of China
| | - Bo Wu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People's Republic of China
| | - Yong-Gui Zhou
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People's Republic of China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People's Republic of China
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9
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Zhou S, Sun ZY, Zhu K, Zhao W, Tang X, Guo M, Wang G. Metal-Free Difunctionalization of Pyridines: Selective Construction of N-CF 2H and N-CHO Dihydropyridines. Org Lett 2021; 23:2205-2211. [PMID: 33635677 DOI: 10.1021/acs.orglett.1c00352] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The reactivity of N-difluoromethylpyridinium salts is seldom explored because of their instability and low availability. Here we present a novel nucleophilic addition of N-difluoromethylpyridinium salts with nitroalkanes to synthesize N-CF2H-dihydropyridines and N-CHO-dihydropyridines in a highly efficient and regioselective pathway. This protocol exhibits good functional group tolerance and good to excellent yields.
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Affiliation(s)
- Sen Zhou
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Ze-Ying Sun
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Kongying Zhu
- Nuclear Magnetic Resonance Testing Center, Tianjin University, Tianjin 300072, P. R. China
| | - Wentao Zhao
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Xiangyang Tang
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China
| | - Minjie Guo
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Guangwei Wang
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, P. R. China
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10
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Mu QQ, Nie YX, Li H, Bai XF, Liu XW, Xu Z, Xu LW. Catalytic asymmetric oxidative carbonylation-induced kinetic resolution of sterically hindered benzylamines to chiral isoindolinones. Chem Commun (Camb) 2021; 57:1778-1781. [PMID: 33475103 DOI: 10.1039/d0cc07218d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A highly enantioselective kinetic resolution of sterically hindered benzylamines has been achieved for the first time through transition-metal-catalyzed oxidative carbonylation, in which the new KR strategy offered a new approach to afford chiral isoindolinones (er up to 97 : 3) and the origin of chemoselectivity and stereoselectivity was confirmed by density functional theory (DFT) calculations.
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Affiliation(s)
- Qiu-Qi Mu
- Institute of Advanced Synthesis (IAS), Northwestern Polytechnical University (NPU), Xi'an 710072, China, Yangtze River Delta Research Institute of NPU, Taicang, Jiangsu 215400, China
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11
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Koay WL, Mei GJ, Lu Y. Facile access to benzofuran-fused tetrahydropyridines via catalytic asymmetric [4 + 2] cycloaddition of aurone-derived 1-azadienes with 3-vinylindoles. Org Chem Front 2021. [DOI: 10.1039/d0qo01236j] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly enantioselective [4 + 2] cycloaddition reaction of 1-azadienes with 3-vinylindoles, catalyzed by chiral phosphoric acid has been developed to furnish a range of benzofuran-fused tetrahydropyridines with three contiguous stereogenic centers.
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Affiliation(s)
- Wai Lean Koay
- Department of Chemistry
- National University of Singapore
- Singapore
- NUS Graduate School for Integrative Sciences & Engineering (NGS)
- National University of Singapore
| | - Guang-Jian Mei
- Department of Chemistry
- National University of Singapore
- Singapore
| | - Yixin Lu
- Department of Chemistry
- National University of Singapore
- Singapore
- NUS Graduate School for Integrative Sciences & Engineering (NGS)
- National University of Singapore
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12
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13
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Phansavath P, Ratovelomanana-Vidal V, Ponra S, Boudet B. Recent Developments in Transition-Metal-Catalyzed Asymmetric Hydrogenation of Enamides. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0040-1705939] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
AbstractThe catalytic asymmetric hydrogenation of prochiral olefins is one of the most widely studied and utilized transformations in asymmetric synthesis. This straightforward, atom economical, inherently direct and sustainable strategy induces chirality in a broad range of substrates and is widely relevant for both industrial applications and academic research. In addition, the asymmetric hydrogenation of enamides has been widely used for the synthesis of chiral amines and their derivatives. In this review, we summarize the recent work in this field, focusing on the development of new catalytic systems and on the extension of these asymmetric reductions to new classes of enamides.1 Introduction2 Asymmetric Hydrogenation of Trisubstituted Enamides2.1 Ruthenium Catalysts2.2 Rhodium Catalysts2.3 Iridium Catalysts2.4 Nickel Catalysts2.5 Cobalt Catalysts3 Asymmetric Hydrogenation of Tetrasubstituted Enamides3.1 Ruthenium Catalysts3.2 Rhodium Catalysts3.3 Nickel Catalysts4 Asymmetric Hydrogenation of Terminal Enamides4.1 Rhodium Catalysts4.2 Cobalt Catalysts5 Rhodium-Catalyzed Asymmetric Hydrogenation of Miscellaneous Enamides6 Conclusions
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Affiliation(s)
- Phannarath Phansavath
- PSL University, Chimie ParisTech-CNRS, Institute of Chemistry for Life & Health Sciences, CSB2D Team
| | | | - Sudipta Ponra
- PSL University, Chimie ParisTech-CNRS, Institute of Chemistry for Life & Health Sciences, CSB2D Team
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