1
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Hervieu C, Kirillova MS, Hu Y, Cuesta-Galisteo S, Merino E, Nevado C. Chiral arylsulfinylamides as reagents for visible light-mediated asymmetric alkene aminoarylations. Nat Chem 2024; 16:607-614. [PMID: 38228849 PMCID: PMC10997517 DOI: 10.1038/s41557-023-01414-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 11/28/2023] [Indexed: 01/18/2024]
Abstract
Two- or one-electron-mediated difunctionalizations of internal alkenes represent straightforward approaches to assemble molecular complexity by the simultaneous formation of two contiguous Csp3 stereocentres. Although racemic versions have been extensively explored, asymmetric variants, especially those involving open-shell C-centred radical species, are much more limited both in number and scope. Here we describe enantioenriched arylsulfinylamides as all-in-one reagents for the efficient asymmetric, intermolecular aminoarylation of alkenes. Under mild photoredox conditions, nitrogen addition of the arylsulfinylamide onto the double bond, followed by 1,4-translocation of the aromatic ring, produce, in a single operation, the corresponding aminoarylation adducts in enantiomerically enriched form. The sulfinyl group acts here as a traceless chiral auxiliary, as it is eliminated in situ under the mild reaction conditions. Optically pure β,β-diarylethylamines, aryl-α,β-ethylenediamines and α-aryl-β-aminoalcohols, prominent motifs in pharmaceuticals, bioactive natural products and ligands for transition metals, are thereby accessible with excellent levels of regio-, relative and absolute stereocontrol.
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Affiliation(s)
- Cédric Hervieu
- Department of Chemistry, University of Zurich, Zurich, Switzerland
| | | | - Yawen Hu
- Department of Chemistry, University of Zurich, Zurich, Switzerland
| | | | - Estíbaliz Merino
- Universidad de Alcalá, Departamento de Química Orgánica y Química Inorgánica, Instituto de Investigación Andrés M. del Río (IQAR), Facultad de Farmacia, Madrid, Spain.
- Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain.
| | - Cristina Nevado
- Department of Chemistry, University of Zurich, Zurich, Switzerland.
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2
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Shi C, Guo L, Gao H, Luo M, Zhou X, Yang C, Xia W. Three-Component Aminoheteroarylation of Alkenes via Photoinduced EDA Complex Activation. Org Lett 2023; 25:7661-7666. [PMID: 37844134 DOI: 10.1021/acs.orglett.3c02988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
A catalyst-free approach for the multicomponent aminoheteroarylation reaction of alkenes with N-aminopyridinium salts and heteroarenes is herein described. The reaction shows good functional group tolerance and allows the generation of valuable β-heteroarylethylamines in satisfying yields. In this transformation, N-aminopyridinium salts and heteroarenes are utilized to generate electron donor-acceptor complexes, which undergo a single-electron transfer process upon light irradiation to form key amidyl radicals and heteroaryl radical cations. The amidyl radical is subsequently captured by alkenes, followed by a Minisci-type reaction to yield the desired β-heteroarylamines as products.
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Affiliation(s)
- Chengcheng Shi
- State Key Laboratory of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Lin Guo
- State Key Laboratory of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Han Gao
- State Key Laboratory of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Mengqi Luo
- State Key Laboratory of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Xiao Zhou
- State Key Laboratory of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Chao Yang
- State Key Laboratory of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Wujiong Xia
- State Key Laboratory of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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3
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Ogawa A, Yamamoto Y. Multicomponent Reactions between Heteroatom Compounds and Unsaturated Compounds in Radical Reactions. Molecules 2023; 28:6356. [PMID: 37687185 PMCID: PMC10488953 DOI: 10.3390/molecules28176356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/18/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
In this mini-review, we present our concepts for designing multicomponent reactions with reference to a series of sequential radical reactions that we have developed. Radical reactions are well suited for the design of multicomponent reactions due to their high functional group tolerance and low solvent sensitivity. We have focused on the photolysis of interelement compounds with a heteroatom-heteroatom single bond, which readily generates heteroatom-centered radicals, and have studied the photoinduced radical addition of interelement compounds to unsaturated compounds. First, the background of multicomponent radical reactions is described, and basic concepts and methodology for the construction of multicomponent reactions are explained. Next, examples of multicomponent reactions involving two interelement compounds and one unsaturated compound are presented, as well as examples of multicomponent reactions involving one interelement compound and two unsaturated compounds. Furthermore, multicomponent reactions involving intramolecular cyclization processes are described.
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Affiliation(s)
- Akiya Ogawa
- Organization for Research Promotion, Osaka Metropolitan University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Yuki Yamamoto
- Graduate Faculty of Interdisciplinary Research, University of Yamanashi, 4-4-37 Takeda, Kofu 400-8510, Japan;
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4
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Cai Y, Chatterjee S, Ritter T. Photoinduced Copper-Catalyzed Late-Stage Azidoarylation of Alkenes via Arylthianthrenium Salts. J Am Chem Soc 2023. [PMID: 37307146 DOI: 10.1021/jacs.3c04016] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The arylethylamine pharmacophore is conserved across a range of biologically active natural products and pharmaceuticals, particularly in molecules that act on the central nervous system. Herein, we present a photoinduced copper-catalyzed azidoarylation of alkenes at a late stage with arylthianthrenium salts, allowing access to highly functionalized acyclic (hetero)arylethylamine scaffolds that are otherwise difficult to access. A mechanistic study is consistent with a rac-BINAP-CuI-azide (2) as the photoactive catalytic species. We show the utility of the new method by the expedient synthesis of racemic melphalan in four steps through C-H functionalization.
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Affiliation(s)
- Yuan Cai
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Sagnik Chatterjee
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Tobias Ritter
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
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5
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Li Z, Zhao L, Zhang Y, Yan H, Huang X, Shen G. Cascade Nucleophilic Attack/Addition Cyclization Reactions to Synthesize Oxazolidin-2-imines via ( Z)-2-Bromo-3-phenylprop-2-en-1-ols/3-phenylprop-2-yn-1-ols and Diphenyl Carbodiimides. J Org Chem 2022; 87:12721-12732. [PMID: 36099272 DOI: 10.1021/acs.joc.2c01268] [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
Two concise strategies to synthesize oxazolidin-2-imines by cascade nucleophilic attack/addition cyclization reactions of (Z)-2-bromo-3-phenylprop-2-en-1-ols/3-phenylprop-2-yn-1-ols and diphenyl carbodiimides without a transition-metal catalyst have been developed. The reactions exhibited good substrate applicability tolerance, and a variety of substituted (Z)-4-((Z)-benzylidene)-N,3-diphenyloxazolidin-2-imines were synthesized in moderate to excellent yields with good stereoselectivity. The reports also provided a convenient strategy to synthesize 3-phenylprop-2-yn-1-ols by (Z)-2-bromo-3-phenylprop-2-en-1-ols. The economic and practical methods provide a great advantage for potential industrial synthesis of oxazolidin-2-imines.
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Affiliation(s)
- Zhanjun Li
- School of Chemistry and Chemical Engineering, School of Pharmaceutical Sciences, Liaocheng University, 1 Hunan Avenue, Liaocheng, Shandong 252000, P. R. China
| | - Lingyu Zhao
- Chemistry and Chemical Engineering, Jinan University, 106 Jiwei Road, Jinan, Shandong 250022, P. R. China
| | - Yalin Zhang
- School of Chemistry and Chemical Engineering, School of Pharmaceutical Sciences, Liaocheng University, 1 Hunan Avenue, Liaocheng, Shandong 252000, P. R. China
| | - Hui Yan
- School of Chemistry and Chemical Engineering, School of Pharmaceutical Sciences, Liaocheng University, 1 Hunan Avenue, Liaocheng, Shandong 252000, P. R. China
| | - Xianqiang Huang
- School of Chemistry and Chemical Engineering, School of Pharmaceutical Sciences, Liaocheng University, 1 Hunan Avenue, Liaocheng, Shandong 252000, P. R. China
| | - Guodong Shen
- School of Chemistry and Chemical Engineering, School of Pharmaceutical Sciences, Liaocheng University, 1 Hunan Avenue, Liaocheng, Shandong 252000, P. R. China.,Chemistry and Chemical Engineering, Jinan University, 106 Jiwei Road, Jinan, Shandong 250022, P. R. China
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6
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Mironova IA, Kirsch SF, Zhdankin V, Yoshimura A, Yusubov MS. Hypervalent Iodine‐Mediated Azidation Reactions. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Irina A. Mironova
- Tomsk Polytechnic University: Nacional'nyj issledovatel'skij Tomskij politehniceskij universitet Chemistry RUSSIAN FEDERATION
| | - Stefan F. Kirsch
- Bergische Universität Wuppertal: Bergische Universitat Wuppertal Fakultät für Mathematik und Naturwissenschaften GERMANY
| | - Viktor Zhdankin
- University of Minnesota Duluth Chemistry 1039 University Dr 55812 Duluth UNITED STATES
| | - Akira Yoshimura
- Aomori University: Aomori Daigaku Department of Pharmacy JAPAN
| | - Mekhman S. Yusubov
- Tomsk Polytechnic University: Nacional'nyj issledovatel'skij Tomskij politehniceskij universitet Chemistry RUSSIAN FEDERATION
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7
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Kwon Y, Wang Q. Recent Advances in 1,2-Amino(hetero)arylation of Alkenes. Chem Asian J 2022; 17:e202200215. [PMID: 35460596 PMCID: PMC9357224 DOI: 10.1002/asia.202200215] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/31/2022] [Indexed: 11/06/2022]
Abstract
Alkene amino(hetero)arylation presents a highly efficient and straightforward strategy for direct installation of amino groups and heteroaryl rings across a double bond simultaneously. An extensive array of practical transformations has been developed via alkene difunctionalization approach to access a broad range of medicinally valuable (hetero)arylethylamine motifs. This review presents recent progress in 1,2-amino(hetero)arylation of alkenes organized in three different modes. First, intramolecular transformations employing C, N-tethered alkenes will be introduced. Next, two-component reactions will be discussed with different combination of precursors, N-tethered alkenes and external aryl precursor, C-tethered alkenes and external amine precursor, or C, N-tethered reagents, and alkenes. Last, three-component intermolecular amino(hetero)arylation reactions will be covered.
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Affiliation(s)
- Yungeun Kwon
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Qiu Wang
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
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8
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Photoinitiated multicomponent cascade reaction of Nheteroarenes with unactivated alkenes and trimethylsilyl azide. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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9
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Mojtahedi MM, Azhari S, Abaee MS. Four-component one-pot synthesis of novel dicyanoaniline anchored triazoles. CAN J CHEM 2022. [DOI: 10.1139/cjc-2021-0263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A four-component reaction was developed by taking the advantage of the reactivity of the propargyl functional groups, residing on the primarily formed dicyanoaniline products. Various enolizable cyclic ketones were reacted with malononitrile and 4-(prop-2-yn-1-yloxy)benzaldehyde derivatives in an aqueous <i>t</i>-BuOH/NaOH medium, and the resulting dicyanoanilines were subjected to a subsequent in situ click reaction to afford the final dicyanoaniline-anchored-triazole products. The enhanced photophysical properties of the novel products are under current study.
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Affiliation(s)
- Mohammad M Mojtahedi
- Chemistry and Chemical Engineering Research Center of Iran, 113401, Department of Organic Chemistry, Tehran, Tehran, Iran (the Islamic Republic of)
| | - Saeede Azhari
- Chemistry and Chemical Engineering Research Center of Iran, 113401, Department of Organic Chemistry, Tehran, Tehran, Iran (the Islamic Republic of)
| | - Mohammad Saeed Abaee
- Chemistry and Chemical Engineering Research Center of Iran, 113401, Organic Chemistry, Tehran, Tehran, Iran (the Islamic Republic of)
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10
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Shee M, Singh NDP. Chemical versatility of azide radical: journey from a transient species to synthetic accessibility in organic transformations. Chem Soc Rev 2022; 51:2255-2312. [PMID: 35229836 DOI: 10.1039/d1cs00494h] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The generation of azide radical (N3˙) occurs from its precursors primarily via a single electron transfer (SET) process or homolytic cleavage by chemical methods or advanced photoredox/electrochemical methods. This in situ generated transient open-shell species has unique characteristic features that set its reactivity. In the past, the azide radical was widely used for various studies in radiation chemistry as a 1e- oxidant of biologically important molecules, but now it is being exploited for synthetic applications based on its addition and intermolecular hydrogen atom transfer (HAT) abilities. Due to the significant role of nitrogen-containing molecules in synthesis, drug discovery, biological, and material sciences, the direct addition onto unsaturated bonds for the simultaneous construction of C-N bond with other (C-X) bonds are indeed worth highlighting. Moreover, the ability to generate O- or C-centered radicals by N3˙ via electron transfer (ET) and intermolecular HAT processes is also well documented. The purpose of controlling the reactivity of this short-lived intermediate in organic transformations drives us to survey: (i) the history of azide radical and its structural properties (thermodynamic, spectroscopic, etc.), (ii) chemical reactivities and kinetics, (iii) methods to produce N3˙ from various precursors, (iv) several significant azide radical-mediated transformations in the field of functionalization with unsaturated bonds, C-H functionalization via HAT, tandem, and multicomponent reaction with a critical analysis of underlying mechanistic approaches and outcomes, (v) concept of taming the reactivity of azide radicals for potential opportunities, in this review.
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Affiliation(s)
- Maniklal Shee
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India.
| | - N D Pradeep Singh
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India.
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11
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Su YL, Liu GX, De Angelis L, He R, Al-Sayyed A, Schanze KS, Hu WH, Qiu H, Doyle MP. Radical Cascade Multicomponent Minisci Reactions with Diazo Compounds. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05611] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yong-Liang Su
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle, San Antonio, Texas 78249, United States
| | - Geng-Xin Liu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Luca De Angelis
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle, San Antonio, Texas 78249, United States
| | - Ru He
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle, San Antonio, Texas 78249, United States
| | - Ammar Al-Sayyed
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle, San Antonio, Texas 78249, United States
| | - Kirk S. Schanze
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle, San Antonio, Texas 78249, United States
| | - Wen-Hao Hu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Huang Qiu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Michael P. Doyle
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle, San Antonio, Texas 78249, United States
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12
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Xia D, Duan XF. Tandem vinyl radical Minisci-type annulation on pyridines: one-pot expeditious access to azaindenones. Chem Commun (Camb) 2021; 57:13570-13573. [PMID: 34846057 DOI: 10.1039/d1cc06204b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A new regiospecific alkylative/alkenylative cascade annulation of pyridines has been achieved whilst the corresponding classic Minisci alkylative annulation failed. This protocol provides a novel and expeditious access to azaindenones and related compounds via cross-dehydrogenative coupling with the long-standing problem of C2/C4 regioselectivity of pyridines being well addressed.
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Affiliation(s)
- Dong Xia
- College of Chemistry, Beijing Normal University, Beijing 100875, China.
| | - Xin-Fang Duan
- College of Chemistry, Beijing Normal University, Beijing 100875, China.
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13
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Kwon Y, Zhang W, Wang Q. Copper-Catalyzed Aminoheteroarylation of Unactivated Alkenes through Distal Heteroaryl Migration. ACS Catal 2021; 11:8807-8817. [PMID: 36381639 PMCID: PMC9648721 DOI: 10.1021/acscatal.1c01001] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We report a copper-catalyzed aminoheteroarylation of unactivated alkenes to access valuable heteroarylethylamine motif. The developed reaction features a copper-catalyzed intermolecular electrophilic amination of the alkenes followed by a migratory heteroarylation. The method applies on alcohol-, amide-, and ether-containing alkenes, overcoming the common requirement of a hydroxyl motif in previous migratory difunctionalization reactions. This reaction is effective for the introduction of diverse aliphatic amines and has good functional group tolerance, which is particularly useful for richly functionalized heteroarenes. This migration-involved reaction was found well suited as a powerful ring expansion approach for the construction of medium-sized rings that are in great demand in medicinal chemistry.
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Affiliation(s)
- Yungeun Kwon
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Wei Zhang
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Qiu Wang
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
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14
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Abstract
Minisci-type reactions have been widely known as reactions that involve the addition
of carbon-centered radicals to basic heteroarenes followed by formal hydrogen atom loss.
While the originally developed protocols for radical generation remain in active use today, in
recent years, the new array of radical generation strategies have allowed the use of a wider
variety of radical precursors that often operate under milder and more benign conditions. New
transformations based on free radical reactivity are now available to a synthetic chemist, to
utilize a Minisci-type reaction. Radical-generation methods based on photoredox catalysis
and electrochemistry, which utilize thermal cleavage or the in situ generation of reactive radical
precursors, have become popular approaches. Our review will cover the remarkable literature
that has been reported on this topic in recent 5 years, from 2015-01 to 2020-01, in an
attempt to provide guidance to the synthetic chemist on both the challenges that need to be overcome and the applications
in organic synthesis.
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Affiliation(s)
- Wengui Wang
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, China
| | - Shoufeng Wang
- Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, China
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15
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Affiliation(s)
- Paramasivam Sivaguru
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Northeast Normal University, Changchun 130024, China
| | - Yongquan Ning
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Northeast Normal University, Changchun 130024, China
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Northeast Normal University, Changchun 130024, China
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16
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Wang F, Qin J, Zhu S, Chu L. Organic-photoredox-catalyzed three-component sulfonylative pyridylation of styrenes. RSC Adv 2021; 11:142-146. [PMID: 35423008 PMCID: PMC8691066 DOI: 10.1039/d0ra10180j] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 12/03/2020] [Indexed: 12/29/2022] Open
Abstract
An efficient, metal-free protocol for the three-component sulfonylative pyridylation of styrenes via organic-photoredox catalysis is described. This metal-free process enables the direct and selective installation of sulfonyl and heteroaryl motifs and tolerates a wide array of functional groups as well as complex molecular scaffolds, that could complement previous methods and would be of interest in pharmaceutical research. An efficient, metal-free protocol for the three-component sulfonylative pyridylation of alkenes via organic-photoredox catalysis is described.![]()
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Affiliation(s)
- Fang Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Center for Advanced Low-Dimension Materials
- College of Chemistry, Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
| | - Jian Qin
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Center for Advanced Low-Dimension Materials
- College of Chemistry, Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
| | - Shengqing Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Center for Advanced Low-Dimension Materials
- College of Chemistry, Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
| | - Lingling Chu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Center for Advanced Low-Dimension Materials
- College of Chemistry, Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
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17
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Yi X, Hu X. Intermolecular oxidative amination of unactivated alkenes by dual photoredox and copper catalysis. Chem Sci 2020; 12:1901-1906. [PMID: 34163953 PMCID: PMC8179295 DOI: 10.1039/d0sc05952h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Oxidative amination of alkenes via amidyl radical addition is potentially an efficient method to generate allylic amines, which are versatile synthetic intermediates to bioactive compounds and organic materials. Here by combining photochemical generation of amidyl radicals with Cu-mediated β-H elimination of alkyl radicals, we have developed an intermolecular oxidative amination of unactivated alkenes. The reaction relies on tandem photoredox and copper catalysis, and works for both terminal and internal alkenes. The radical nature of the reaction and the mild conditions lead to high functional group tolerance. Oxidative amination via amidyl radical addition of unactivated alkenes was realized by dual photoredox and copper catalysis.![]()
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Affiliation(s)
- Xiangli Yi
- Laboratory of Inorganic Synthesis and Catalysis, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL) Lausanne 1015 Switzerland
| | - Xile Hu
- Laboratory of Inorganic Synthesis and Catalysis, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL) Lausanne 1015 Switzerland
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18
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Ge L, Chiou MF, Li Y, Bao H. Radical azidation as a means of constructing C(sp3)-N3 bonds. GREEN SYNTHESIS AND CATALYSIS 2020. [DOI: 10.1016/j.gresc.2020.07.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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19
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Yang Y, Xu CH, Xiong ZQ, Li JH. Visible light photoredox alkylazidation of alkenes with sodium azide and heteroarenium salts: entry to azido-containing 1,4-dihydropyridines. Chem Commun (Camb) 2020; 56:9549-9552. [PMID: 32691800 DOI: 10.1039/d0cc03235b] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A three-component alkene alkylazidation using sodium azide as the azido resource and heteroarenium salts as functionalized alkyl reagents for producing highly valuable 2-azido-1-(1,4-dihydropyridin-4-yl)-ethanes is described. This reaction allows the incorporation of both an azido group and a 1,4-dihydropyridin-4-yl group across C[double bond, length as m-dash]C bonds to construct two new bonds in a single reaction step, and represents a practical and mechanistically distinct alternative that harnesses an electrophilic heteroarenium ion to accomplish the alkene difunctionalization reaction.
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Affiliation(s)
- Yuan Yang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China. and Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Hunan Normal University, Changsha 410081, China
| | - Chong-Hui Xu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China. and State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
| | - Zhi-Qiang Xiong
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China.
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China. and Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Hunan Normal University, Changsha 410081, China and State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
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20
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Wei R, Xiong H, Ye C, Li Y, Bao H. Iron-Catalyzed Alkylazidation of 1,1-Disubstituted Alkenes with Diacylperoxides and TMSN 3. Org Lett 2020; 22:3195-3199. [PMID: 32227900 DOI: 10.1021/acs.orglett.0c00969] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
An iron-catalyzed radical alkylazidation of electron-deficient alkenes is reported. Alkyl diacyl peroxides work as the alkyl source, and trimethylsilyl azide acts as the azido reservoir. This method features mild reaction conditions, wide substrate scope, and good functional group tolerance, providing a range of α-azido esters, an α-azido ketone, and an α-azido cyanide in high yields. These azides can be easily transferred into many kinds of amino acid derivatives.
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Affiliation(s)
- Rongbiao Wei
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. of China.,College of Chemistry, Fuzhou University, 2 Xueyuan Road, Fuzhou, Fujian 350108, P. R. of China
| | - Haigen Xiong
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. of China
| | - Changqing Ye
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. of China
| | - Yajun Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. of China
| | - Hongli Bao
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, P. R. of China
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21
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Li T, Liang K, Zhang Y, Hu D, Ma Z, Xia C. Three-Component Minisci Reaction with 1,3-Dicarbonyl Compounds Induced by Visible Light. Org Lett 2020; 22:2386-2390. [DOI: 10.1021/acs.orglett.0c00584] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Tao Li
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), School of Chemical Science and Technology, and Yunnan University Library, Yunnan University, 2 North Cuihu Road, Kunming 650091, China
| | - Kangjiang Liang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), School of Chemical Science and Technology, and Yunnan University Library, Yunnan University, 2 North Cuihu Road, Kunming 650091, China
| | - Yang Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), School of Chemical Science and Technology, and Yunnan University Library, Yunnan University, 2 North Cuihu Road, Kunming 650091, China
| | - Dongyan Hu
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), School of Chemical Science and Technology, and Yunnan University Library, Yunnan University, 2 North Cuihu Road, Kunming 650091, China
| | - Zhixian Ma
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), School of Chemical Science and Technology, and Yunnan University Library, Yunnan University, 2 North Cuihu Road, Kunming 650091, China
| | - Chengfeng Xia
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province), School of Chemical Science and Technology, and Yunnan University Library, Yunnan University, 2 North Cuihu Road, Kunming 650091, China
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22
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Abstract
Vicinal alkene carboamination is a highly efficient and practical synthetic strategy for the straightforward preparation of diverse and valuable amine derivatives starting from simple compounds. During the last decade that approach has found continuous research interests and various practical methods have been developed using transition-metal catalysis. Driven by the renaissance of synthetic radical chemistry, intermolecular radical alkene carboamination comprising a C-C bond and a C-N bond forming step has been intensively investigated recently culminating in novel strategies and improved protocols which complement existing methodologies. Radical alkene carboamination can be achieved via three different reaction modes. Such cascades can proceed through N-radical addition to an alkene with subsequent C-C bond formation leading to 2,1-carboamination products. Alternatively, the C-C bond can be installed prior to the C-N bond via initial C-radical addition to the alkene with subsequent β-amination resulting in 1,2-carboamination. The third mode comprises initial single electron oxidation of the alkene to the corresponding alkene radical cation that gets trapped by an N-nucleophile and the cascade is terminated by radical C-C bond formation. In this review, the three different conceptual approaches will be discussed and examples from the recent literature will be presented. Further, the reader will get insights into the mechanism of the different transformations.
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Affiliation(s)
- Heng Jiang
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraße 40, 48149 Münster, Germany.
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23
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Wang P, Zhu S, Lu D, Gong Y. Intermolecular Trifluoromethyl-Hydrazination of Alkenes Enabled by Organic Photoredox Catalysis. Org Lett 2020; 22:1924-1928. [DOI: 10.1021/acs.orglett.0c00287] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Peng Wang
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Songsong Zhu
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Dengfu Lu
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Yuefa Gong
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, China
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24
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Zhang X, Cui T, Zhao X, Liu P, Sun P. Electrochemical Difunctionalization of Alkenes by a Four‐Component Reaction Cascade Mumm Rearrangement: Rapid Access to Functionalized Imides. Angew Chem Int Ed Engl 2020; 59:3465-3469. [DOI: 10.1002/anie.201913332] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 11/22/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Xiaofeng Zhang
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| | - Ting Cui
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| | - Xin Zhao
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| | - Ping Liu
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| | - Peipei Sun
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
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25
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Zhang X, Cui T, Zhao X, Liu P, Sun P. Electrochemical Difunctionalization of Alkenes by a Four‐Component Reaction Cascade Mumm Rearrangement: Rapid Access to Functionalized Imides. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913332] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Xiaofeng Zhang
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| | - Ting Cui
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| | - Xin Zhao
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| | - Ping Liu
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| | - Peipei Sun
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
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26
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Li X, Yan X, Wang Z, He X, Dai Y, Yan X, Zhao D, Xu X. Complementary Oxidative Generation of Iminyl Radicals from α-Imino-oxy Acids: Silver-Catalyzed C–H Cyanoalkylation of Heterocycles and Quinones. J Org Chem 2020; 85:2504-2511. [DOI: 10.1021/acs.joc.9b03204] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Xiaoqing Li
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Xiaoyu Yan
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Zhi Wang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Xiaoxue He
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Yuyu Dai
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Xinhuan Yan
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Deming Zhao
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Xiangsheng Xu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
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27
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Wang Z, Dong J, Hao Y, Li Y, Liu Y, Song H, Wang Q. Photoredox-Mediated Minisci C–H Alkylation Reactions between N-Heteroarenes and Alkyl Iodides with Peroxyacetate as a Radical Relay Initiator. J Org Chem 2019; 84:16245-16253. [DOI: 10.1021/acs.joc.9b02848] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhen Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Jianyang Dong
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Yanan Hao
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Yongqiang Li
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Yuxiu Liu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Hongjian Song
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, People’s Republic of China
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28
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Wang P, Luo Y, Zhu S, Lu D, Gong Y. Catalytic Azido‐Hydrazination of Alkenes Enabled by Visible Light: Mechanistic Studies and Synthetic Applications. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901041] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Peng Wang
- School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology 1037 Luoyu Rd. Wuhan, Hubei 430074 People's Republic of China
| | - Yunxuan Luo
- School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology 1037 Luoyu Rd. Wuhan, Hubei 430074 People's Republic of China
| | - Songsong Zhu
- School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology 1037 Luoyu Rd. Wuhan, Hubei 430074 People's Republic of China
| | - Dengfu Lu
- School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology 1037 Luoyu Rd. Wuhan, Hubei 430074 People's Republic of China
| | - Yuefa Gong
- School of Chemistry and Chemical EngineeringHuazhong University of Science and Technology 1037 Luoyu Rd. Wuhan, Hubei 430074 People's Republic of China
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29
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Lardy SW, Schmidt VA. Intermolecular Aminoallylation of Alkenes Using Allyl-Oxyphthalimide Derivatives: A Case Study in Radical Polarity Effects. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901071] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Samuel W. Lardy
- Department of Chemistry and Biochemistry; University of California San Diego; 9500 Gilman Dr 92093 La Jolla CA USA
| | - Valerie A. Schmidt
- Department of Chemistry and Biochemistry; University of California San Diego; 9500 Gilman Dr 92093 La Jolla CA USA
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30
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Iodine(III) reagent (ABX—N3)-induced intermolecular anti-Markovnikov hydroazidation of unactivated alkenes. Sci China Chem 2019. [DOI: 10.1007/s11426-019-9628-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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31
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Yang S, Zhu S, Lu D, Gong Y. Polarity-Reversed Addition of Enol Ethers to Imines under Visible Light: Redox-Neutral Access to Azide-Containing Amino Acids. Org Lett 2019; 21:8464-8468. [DOI: 10.1021/acs.orglett.9b03238] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sen Yang
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Shuangyu Zhu
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Dengfu Lu
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, China
| | - Yuefa Gong
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, China
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32
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Zheng D, Studer A. Asymmetric Synthesis of Heterocyclic γ-Amino-Acid and Diamine Derivatives by Three-Component Radical Cascade Reactions. Angew Chem Int Ed Engl 2019; 58:15803-15807. [PMID: 31489747 DOI: 10.1002/anie.201908987] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Indexed: 01/01/2023]
Abstract
An enantioselective three-component radical reaction of quinolines or pyridines with enamides and α-bromo carbonyl compounds by dual photoredox and chiral Brønsted acid catalysis is presented. A range of valuable chiral γ-amino-acid derivatives are accessible in high chemo-, regio-, and enantioselectivity from simple, readily available starting materials under mild reaction conditions. Using the same strategy, the asymmetric synthesis of 1,2-diamine derivatives is also reported.
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Affiliation(s)
- Danqing Zheng
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstrasse 40, 48149, Münster, Germany
| | - Armido Studer
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstrasse 40, 48149, Münster, Germany
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33
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Zheng D, Studer A. Asymmetric Synthesis of Heterocyclic γ‐Amino‐Acid and Diamine Derivatives by Three‐Component Radical Cascade Reactions. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908987] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Danqing Zheng
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Corrensstrasse 40 48149 Münster Germany
| | - Armido Studer
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Corrensstrasse 40 48149 Münster Germany
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34
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Proctor RSJ, Phipps RJ. Recent Advances in Minisci‐Type Reactions. Angew Chem Int Ed Engl 2019; 58:13666-13699. [DOI: 10.1002/anie.201900977] [Citation(s) in RCA: 298] [Impact Index Per Article: 59.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Indexed: 01/05/2023]
Affiliation(s)
- Rupert S. J. Proctor
- Department of ChemistryUniversity of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Robert J. Phipps
- Department of ChemistryUniversity of Cambridge Lensfield Road Cambridge CB2 1EW UK
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35
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Moon Y, Park B, Kim I, Kang G, Shin S, Kang D, Baik MH, Hong S. Visible light induced alkene aminopyridylation using N-aminopyridinium salts as bifunctional reagents. Nat Commun 2019; 10:4117. [PMID: 31511595 PMCID: PMC6739411 DOI: 10.1038/s41467-019-12216-3] [Citation(s) in RCA: 111] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 08/27/2019] [Indexed: 11/09/2022] Open
Abstract
The development of intermolecular alkene aminopyridylation has great potential for quickly increasing molecular complexity with two valuable groups. Here we report a strategy for the photocatalytic aminopyridylation of alkenes using a variety of N-aminopyridinium salts as both aminating and pyridylating reagents. Using Eosin Y as a photocatalyst, amino and pyridyl groups are simultaneously incorporated into alkenes, affording synthetically useful aminoethyl pyridine derivatives under mild reaction conditions. Remarkably, the C4-regioselectivity in radical trapping with N-aminopyridinium salt can be controlled by electrostatic interaction between the pyridinium nitrogen and sulfonyl group of β-amino radical. This transformation is characterized by a broad substrate scope, good functional group compatibility, and the utility of this transformation was further demonstrated by late-stage functionalization of complex biorelevant molecules. Combining experiments and DFT calculations on the mechanism of the reaction is investigated to propose a complete mechanism and regioselectivity.
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Affiliation(s)
- Yonghoon Moon
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Korea
| | - Bohyun Park
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Korea
| | - Inwon Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Korea
| | - Gyumin Kang
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Korea
| | - Sanghoon Shin
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Korea
| | - Dahye Kang
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Korea.,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Korea
| | - Mu-Hyun Baik
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Korea. .,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Korea.
| | - Sungwoo Hong
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Korea. .,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, 34141, Korea.
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36
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Wang Y, Yang L, Liu S, Huang L, Liu Z. Surgical Cleavage of Unstrained C(
sp
3
)−C(
sp
3
) Bonds in General Alcohols for Heteroaryl C−H Alkylation and Acylation. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900975] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yaxin Wang
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, College of PharmacyNanjing University of Chinese Medicine Nanjing 210023 People's Republic of China
| | - Le Yang
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, College of PharmacyNanjing University of Chinese Medicine Nanjing 210023 People's Republic of China
| | - Shuai Liu
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, College of PharmacyNanjing University of Chinese Medicine Nanjing 210023 People's Republic of China
| | - Lixia Huang
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, College of PharmacyNanjing University of Chinese Medicine Nanjing 210023 People's Republic of China
| | - Zhong‐Quan Liu
- State Key Laboratory Cultivation Base for TCM Quality and Efficacy, College of PharmacyNanjing University of Chinese Medicine Nanjing 210023 People's Republic of China
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37
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Wu D, Cui SS, Lin Y, Li L, Yu W. Visible Light-Driven Azidation/Difunctionalization of Vinyl Arenes with Azidobenziodoxole under Copper Catalysis. J Org Chem 2019; 84:10978-10989. [DOI: 10.1021/acs.joc.9b01569] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Danhua Wu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Shuang-Shuang Cui
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Yajun Lin
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Lin Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Wei Yu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, PR China
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38
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Affiliation(s)
- Rupert S. J. Proctor
- Department of ChemistryUniversity of Cambridge Lensfield Road Cambridge CB2 1EW Großbritannien
| | - Robert J. Phipps
- Department of ChemistryUniversity of Cambridge Lensfield Road Cambridge CB2 1EW Großbritannien
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39
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Buquoi JQ, Lear JM, Gu X, Nagib DA. Heteroarene Phosphinylalkylation via a Catalytic, Polarity-Reversing Radical Cascade. ACS Catal 2019; 9:5330-5335. [PMID: 31275730 PMCID: PMC6608589 DOI: 10.1021/acscatal.9b01580] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A polarity-reversing radical cascade strategy for alkene di-functionalization by vicinal C-C and C-P bond-formation has been developed. This approach to concurrently adding phosphorous and a heteroarene across an olefin is enabled by photocatalytic generation of electrophilic P-centered radicals. Upon chemoselective addition to an olefin, the resulting nucleophilic C-centered radical selectively combines with electrophilic heteroarenes, such as pyridines. This multi-component coupling scheme for phosphinylalkylation complements classic two-component methods for hydrophosphinylation of alkenes and C-H phosphinylation of arenes. Included competition and photo-quenching experiments provide insight into the selectivity and mechanism of this polarity-reversal pathway.
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Affiliation(s)
- J Quentin Buquoi
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210, United States
| | - Jeremy M Lear
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210, United States
| | - Xin Gu
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210, United States
| | - David A Nagib
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210, United States
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40
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Carlson AS, Topczewski JJ. Allylic azides: synthesis, reactivity, and the Winstein rearrangement. Org Biomol Chem 2019; 17:4406-4429. [PMID: 30969292 PMCID: PMC6530792 DOI: 10.1039/c8ob03178a] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Organic azides are useful synthetic intermediates, which demonstrate broad reactivity. Unlike most organic azides, allylic azides can spontaneously rearrange to form a mixture of isomers. This rearrangement has been named the Winstein rearrangement. Using allylic azides can result in low yields and azide racemization in some synthetic contexts due to the Winstein rearrangement. Effort has been made to understand the mechanism of the Winstein rearrangement and to take advantage of this process. Several guiding principles can be used to identify which azides will produce a mixture of isomers and which will resist rearrangement. Selective reaction conditions can be used to differentiate the azide isomers in a dynamic manner. This review covers all aspects of allylic azides including their synthesis, their reactivity, the mechanism of the Winstein rearrangement, and reactions that can selectively elaborate an azide isomer. This review covers the literature from Winstein's initial report to early 2019.
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Affiliation(s)
- Angela S Carlson
- Department of Chemistry, University of Minnesota, Minneapolis, MN 55455, USA.
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41
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Kumagai Y, Murakami N, Kamiyama F, Tanaka R, Yoshino T, Kojima M, Matsunaga S. C–H γ,γ,γ-Trifluoroalkylation of Quinolines via Visible-Light-Induced Sequential Radical Additions. Org Lett 2019; 21:3600-3605. [DOI: 10.1021/acs.orglett.9b01015] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yuhei Kumagai
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Nanami Murakami
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Futa Kamiyama
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Ryo Tanaka
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Tatsuhiko Yoshino
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Masahiro Kojima
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Shigeki Matsunaga
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
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42
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Liu S, Shen T, Luo Z, Liu ZQ. A free radical alkylation of quinones with olefins. Chem Commun (Camb) 2019; 55:4027-4030. [PMID: 30882129 DOI: 10.1039/c9cc01704f] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We demonstrated herein an Fe(iii)-mediated radical alkylation of quinones. A wide range of bioactive molecules with quinone motifs can be rapidly synthesized by using readily available and inexpensive NaBH4/NaBD4 with alkenes at room temperature under open flask conditions.
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Affiliation(s)
- Shuai Liu
- College of Chemical Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, P. R. China
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43
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Mao S, Luo K, Wang L, Zhao HY, Shergalis A, Xin M, Neamati N, Jin Y, Zhang SQ. Metal-Free C-2-H Alkylation of Quinazolin-4-ones with Alkanes via Cross-Dehydrogenative Coupling. Org Lett 2019; 21:2365-2368. [DOI: 10.1021/acs.orglett.9b00638] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Shuai Mao
- Department of Medicinal Chemistry, School of Pharmacy, Xi’an Jiaotong University, Xi’an 710061, China
- Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Kaixiu Luo
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Lu Wang
- Department of Medicinal Chemistry, School of Pharmacy, Xi’an Jiaotong University, Xi’an 710061, China
| | - Hong-Yi Zhao
- Department of Medicinal Chemistry, School of Pharmacy, Xi’an Jiaotong University, Xi’an 710061, China
| | - Andrea Shergalis
- Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Minhang Xin
- Department of Medicinal Chemistry, School of Pharmacy, Xi’an Jiaotong University, Xi’an 710061, China
| | - Nouri Neamati
- Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Yi Jin
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - San-Qi Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Xi’an Jiaotong University, Xi’an 710061, China
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44
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Wang J, Yu W. Anti‐Markovnikov Hydroazidation of Alkenes by Visible‐Light Photoredox Catalysis. Chemistry 2019; 25:3510-3514. [DOI: 10.1002/chem.201806371] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Indexed: 01/22/2023]
Affiliation(s)
- Juan‐Juan Wang
- State Key Laboratory of Applied Organic ChemistryCollege of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 P. R. China
| | - Wei Yu
- State Key Laboratory of Applied Organic ChemistryCollege of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 P. R. China
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45
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Dong J, Lyu X, Wang Z, Wang X, Song H, Liu Y, Wang Q. Visible-light-mediated Minisci C-H alkylation of heteroarenes with unactivated alkyl halides using O 2 as an oxidant. Chem Sci 2019; 10:976-982. [PMID: 30774891 PMCID: PMC6349069 DOI: 10.1039/c8sc04892d] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 11/26/2018] [Indexed: 01/07/2023] Open
Abstract
Herein, we report a protocol for direct visible-light-mediated Minisci C-H alkylation of heteroarenes with unactivated alkyl halides using molecular oxygen as an oxidant at room temperature. This mild protocol is compatible with a wide array of sensitive functional groups and has a broad substrate scope. Notably, functionalization of (iso)quinolines, pyridines, phenanthrolines, quinazoline, and other heterocyclic compounds with unactivated primary, secondary, and tertiary alkyl halides proceeds smoothly under the standard conditions. The robustness of this protocol is further demonstrated by the late-stage functionalization of complex nitrogen-containing natural products and drugs.
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Affiliation(s)
- Jianyang Dong
- State Key Laboratory of Elemento-Organic Chemistry , Research Institute of Elemento-Organic Chemistry , College of Chemistry , Nankai University , Tianjin 300071 , People's Republic of China .
| | - Xueli Lyu
- State Key Laboratory of Elemento-Organic Chemistry , Research Institute of Elemento-Organic Chemistry , College of Chemistry , Nankai University , Tianjin 300071 , People's Republic of China .
| | - Zhen Wang
- State Key Laboratory of Elemento-Organic Chemistry , Research Institute of Elemento-Organic Chemistry , College of Chemistry , Nankai University , Tianjin 300071 , People's Republic of China .
| | - Xiaochen Wang
- State Key Laboratory of Elemento-Organic Chemistry , Research Institute of Elemento-Organic Chemistry , College of Chemistry , Nankai University , Tianjin 300071 , People's Republic of China .
| | - Hongjian Song
- State Key Laboratory of Elemento-Organic Chemistry , Research Institute of Elemento-Organic Chemistry , College of Chemistry , Nankai University , Tianjin 300071 , People's Republic of China .
| | - Yuxiu Liu
- State Key Laboratory of Elemento-Organic Chemistry , Research Institute of Elemento-Organic Chemistry , College of Chemistry , Nankai University , Tianjin 300071 , People's Republic of China .
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry , Research Institute of Elemento-Organic Chemistry , College of Chemistry , Nankai University , Tianjin 300071 , People's Republic of China .
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Tianjin 300071 , People's Republic of China
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Zheng D, Studer A. Photoinitiated Three-Component α-Perfluoroalkyl-β-heteroarylation of Unactivated Alkenes via Electron Catalysis. Org Lett 2019; 21:325-329. [PMID: 30576162 PMCID: PMC6326532 DOI: 10.1021/acs.orglett.8b03849] [Citation(s) in RCA: 104] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Indexed: 01/01/2023]
Abstract
A visible-light-initiated α-perfluoroalkyl-β-heteroarylation of various alkenes with perfluoroalkyl iodides and quinoxalin-2(1 H)-ones is presented. This three-component radical cascade reaction allows an efficient synthesis of a range of perfluoroalkyl containing quinoxalin-2(1 H)-one derivatives in moderate to excellent yields under mild conditions. Reactions proceed via acidic aminyl radicals that are readily deprotonated to give the corresponding radical anions able to sustain the radical chain as single electron transfer reducing reagents. Hence, the overall cascade classifies as an electron-catalyzed process.
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Affiliation(s)
- Danqing Zheng
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraβe 40, 48149 Münster, Germany
| | - Armido Studer
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraβe 40, 48149 Münster, Germany
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47
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Lear JM, Buquoi JQ, Gu X, Pan K, Mustafa DN, Nagib DA. Multi-component heteroarene couplings via polarity-reversed radical cascades. Chem Commun (Camb) 2019; 55:8820-8823. [PMID: 31134975 DOI: 10.1039/c9cc03498f] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A multi-component radical addition strategy enables difunctionalization of alkenes with heteroarenes and a variety of radical precursors, including N3, P(O)R2, and CF3. This unified approach for coupling diverse classes of electrophilic radicals and heteroarenes to vinyl ethers allows for direct, vicinal C-C as well as C-N, C-P, and C-Rf bond formation.
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Affiliation(s)
- Jeremy M Lear
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43210, USA.
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48
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Chen J, Zhu S, Qin J, Chu L. Intermolecular, redox-neutral azidoarylation of alkenes via photoredox catalysis. Chem Commun (Camb) 2019; 55:2336-2339. [DOI: 10.1039/c9cc00241c] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
An intermolecular, redox-neutral azidoarylation of alkenes with pyridines and TMSN3 has been reported via visible light-induced photoredox catalysis.
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Affiliation(s)
- Jian Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Center for Advanced Low-Dimension Materials
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Shengqing Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Center for Advanced Low-Dimension Materials
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Jian Qin
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Center for Advanced Low-Dimension Materials
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
| | - Lingling Chu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- Center for Advanced Low-Dimension Materials
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
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49
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Ruscoe RE, Callingham M, Baker JA, Korkis SE, Lam HW. Iridium-catalyzed 1,5-(aryl)aminomethylation of 1,3-enynes by alkenyl-to-allyl 1,4-iridium(i) migration. Chem Commun (Camb) 2019; 55:838-841. [DOI: 10.1039/c8cc09238a] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A novel multicomponent coupling reaction involving the iridium-catalyzed 1,5-difunctionalization of 1,3-enynes with arylboronic acids and triazinanes is described.
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Affiliation(s)
- Rebecca E. Ruscoe
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry
- University of Nottingham
- Nottingham
- UK
- School of Chemistry
| | - Michael Callingham
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry
- University of Nottingham
- Nottingham
- UK
- School of Chemistry
| | - Joshua A. Baker
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry
- University of Nottingham
- Nottingham
- UK
- School of Chemistry
| | - Stamatis E. Korkis
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry
- University of Nottingham
- Nottingham
- UK
- School of Chemistry
| | - Hon Wai Lam
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry
- University of Nottingham
- Nottingham
- UK
- School of Chemistry
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50
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Jiang H, Studer A. Transition-Metal-Free Three-Component Radical 1,2-Amidoalkynylation of Unactivated Alkenes. Chemistry 2018; 25:516-520. [PMID: 30403422 DOI: 10.1002/chem.201805490] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Indexed: 11/10/2022]
Abstract
A transition-metal-free radical 1,2-amidoalkynylation of unactivated alkenes is presented. α-Amido-oxy acids were used as amidyl radical precursors, which were oxidized by an organic photoredox catalyst (4CzlPN). The electrophilic N-radicals chemoselectively reacted with various aliphatic alkenes and the adduct radicals were then trapped by ethynylbenziodoxolone (EBX) reagents to eventually provide the amidoalkynylation products. These transformations, which were conducted under practical and mild conditions, showed high functional group tolerance and broad substrate scope. Mechanistic studies supported the radical nature of these cascades.
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Affiliation(s)
- Heng Jiang
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraß 40, 48149, Münster, Germany
| | - Armido Studer
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraß 40, 48149, Münster, Germany
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