1
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Lee SB, Chun S, Choi SH, Hong J, Oh DC, Hong S. Iron-Catalyzed Oxidative Cyclization of 2-Amino Styrenes with Alcohols and Methyl Arenes for the Synthesis of Polysubstituted Quinolines. J Org Chem 2023. [PMID: 37285286 DOI: 10.1021/acs.joc.3c00095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Herein, we present the iron-catalyzed oxidative cyclization of alcohol/methyl arene with 2-amino styrene to synthesize polysubstituted quinoline. Low-oxidation level substrates such as alcohols and methyl arenes are converted to aldehydes in the presence of an iron catalyst and di-t-butyl peroxide. Then, the quinoline scaffold is synthesized through imine condensation/radical cyclization/oxidative aromatization. Our protocol showed a broad substrate scope, and various functionalization and fluorescence applications of quinoline products demonstrated its synthetic ability.
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Affiliation(s)
- Seok Beom Lee
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Simin Chun
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Seung Hyun Choi
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Junhwa Hong
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Dong-Chan Oh
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Suckchang Hong
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
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2
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Liu X, Chu X. Metal-Free Synthesis of Functionalized Quinolines from 2-Styrylanilines and 2-Methylbenzothiazoles/2-Methylquinolines. ACS OMEGA 2023; 8:6940-6944. [PMID: 36844512 PMCID: PMC9948197 DOI: 10.1021/acsomega.2c07736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 01/19/2023] [Indexed: 06/18/2023]
Abstract
A facile functionalization of C(sp3)-H bonds and tandem cyclization strategy to synthesize quinoline derivatives from 2-methylbenzothiazoles or 2-methylquinolines and 2-styrylanilines has been developed. This work avoids the requirement for transition metals, offering a mild approach to activation of C(sp3)-H bonds and formation of new C-C and C-N bonds. This strategy features excellent functional group tolerance and scaled-up synthetic capability, thus providing an efficient and environmentally friendly access to medicinally valuable quinolines.
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3
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Sherborne GJ, Kemmitt P, Prentice C, Zysman-Colman E, Smith AD, Fallan C. Visible Light-Mediated Cyclisation Reaction for the Synthesis of Highly-Substituted Tetrahydroquinolines and Quinolines. Angew Chem Int Ed Engl 2023; 62:e202207829. [PMID: 36342443 DOI: 10.1002/anie.202207829] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Indexed: 11/09/2022]
Abstract
Condensation of 2-vinylanilines and conjugated aldehydes followed by an efficient light-mediated cyclisation selectively yields either substituted tetrahydroquinolines with typically high dr, or in the presence of an iridium photocatalyst the synthesis of quinoline derivatives is demonstrated. These atom economical processes require mild conditions, with the substrate scope demonstrating excellent site selectivity and functional group tolerance, including azaarene-bearing substrates. A thorough experimental mechanistic investigation explores multiple pathways and the key role that imine and iminium intermediates play in the absorption of visible light to generate reactive excited states. The synthetic utility of the reactions is demonstrated on gram scale quantities in both batch and flow, alongside further manipulation of the medicinally relevant products.
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Affiliation(s)
- Grant J Sherborne
- Medicinal Chemistry Oncology R&D, Research and Early Development, AstraZeneca, Cambridge Science Park, Unit 310, Darwin Building, Cambridge, CB4 0WG, UK
| | - Paul Kemmitt
- Medicinal Chemistry Oncology R&D, Research and Early Development, AstraZeneca, Cambridge Science Park, Unit 310, Darwin Building, Cambridge, CB4 0WG, UK
| | - Callum Prentice
- Organic Semiconductor Centre, EaStCHEM School of Chemistry, University of St Andrews, St Andrews, Fife, KY16 9ST, UK.,EaStCHEM School of Chemistry, University of St Andrews, St Andrews, Fife, KY16 9ST, UK
| | - Eli Zysman-Colman
- Organic Semiconductor Centre, EaStCHEM School of Chemistry, University of St Andrews, St Andrews, Fife, KY16 9ST, UK
| | - Andrew D Smith
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, Fife, KY16 9ST, UK
| | - Charlene Fallan
- Medicinal Chemistry Oncology R&D, Research and Early Development, AstraZeneca, Cambridge Science Park, Unit 310, Darwin Building, Cambridge, CB4 0WG, UK
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4
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Vchislo NV, Verochkina EA. Syntheses of quinolines and their derivatives from α,β-unsaturated aldehydes. Chem Heterocycl Compd (N Y) 2022. [DOI: 10.1007/s10593-022-03102-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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5
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Vera DR, Mantilla JP, Palma A, Cobo J, Glidewell C. Synthesis and spectroscopic and structural characterization of three new 2-methyl-4-styrylquinolines formed using Friedländer reactions between (2-aminophenyl)chalcones and acetone. Acta Crystallogr C 2022; 78:524-530. [PMID: 36196785 PMCID: PMC9533309 DOI: 10.1107/s2053229622008634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 08/29/2022] [Indexed: 11/17/2022] Open
Abstract
The syntheses and structures are reported for three 4-styrylquinoline derivatives formed by reactions between (2-aminophenyl)chalcones and acetone. Three new 2-methyl-4-styrylquinoline derivatives have been synthesized in high yields using Friedländer reactions between chalcones [1-(2-aminophenyl)-3-arylprop-2-en-1-ones] and acetone, and characterized using IR, 1H and 13C NMR spectroscopy, and mass spectrometry, and by crystal structure analysis. In (E)-4-(4-fluorostyryl)-2-methylquinoline, C18H14FN, (I), the molecules are joined into cyclic centrosymmetric dimers by C—H⋯N hydrogen bonds and these dimers are linked into sheets by π–π stacking interactions. The molecules of (E)-2-methyl-4-[4-(trifluoromethyl)styryl]quinoline, C19H14F3N, (II), are linked into cyclic centrosymmetric dimers by C—H⋯π hydrogen bonds and these dimers are linked into chains by a single π–π stacking interaction. There are no significant hydrogen bonds in the structure of (E)-4-(2,6-dichlorostyryl)-2-methylquinoline, C18H13Cl2N, (III), but molecules related by translation along [010] form stacks with an intermolecular spacing of only 3.8628 (2) Å. Comparisons are made with the structures of some related compounds.
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Affiliation(s)
- Diana Rocío Vera
- Laboratorio de Síntesis Orgánica, Escuela de Química, Universidad Industrial de Santander, AA 678, Bucaramanga, Colombia
| | - Juan P Mantilla
- Laboratorio de Síntesis Orgánica, Escuela de Química, Universidad Industrial de Santander, AA 678, Bucaramanga, Colombia
| | - Alirio Palma
- Laboratorio de Síntesis Orgánica, Escuela de Química, Universidad Industrial de Santander, AA 678, Bucaramanga, Colombia
| | - Justo Cobo
- Departamento de Química Inorgánica y Orgánica, Universidad de Jaén, 23071 Jaén, Spain
| | - Christopher Glidewell
- School of Chemistry, University of St Andrews, St Andrews, Fife KY16 9ST, United Kingdom
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6
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Kralova P, Žáková K, Pospíšilová L, Soural M. Synthesis of 2,3‐Disubstituted Quinoline‐4‐carbonitriles via Truce–Smiles Rearrangement of Phenacyl‐4‐nitrobenzenesulfonamides. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200531] [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)
- Petra Kralova
- Palacky University Olomouc: Univerzita Palackeho v Olomouci Organic chemistry CZECH REPUBLIC
| | - Kateřina Žáková
- Palacky University Olomouc: Univerzita Palackeho v Olomouci Organic chemistry CZECH REPUBLIC
| | - Lenka Pospíšilová
- Palacky University Olomouc: Univerzita Palackeho v Olomouci Organic chemistry CZECH REPUBLIC
| | - Miroslav Soural
- Palacky University Olomouc Organic Chemistry 17.listopadu 12 77146 Olomouc CZECH REPUBLIC
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7
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Liu L, Lin J, Pang M, Jin H, Yu X, Wang S. Photo-Thermo-Mechanochemical Approach to Synthesize Quinolines via Addition/Cyclization of Sulfoxonium Ylides with 2-Vinylanilines Catalyzed by Iron(II) Phthalocyanine. Org Lett 2022; 24:1146-1151. [PMID: 35112867 DOI: 10.1021/acs.orglett.1c04220] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A novel photo-thermo-mechanochemical approach to assembling quinolines catalyzed by iron(II) phthalocyanine has been realized for the first time. This transformation features a cost-efficient catalytic system and operational simplicity, is free of solvent, and shows good substrate tolerance, providing a green alternative to existing thermal approaches. Mechanistic experiments demonstrate that the in-situ-formed secondary amine may be the key intermediate for the further cyclization/aromatization process.
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Affiliation(s)
- Luyao Liu
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Jingyang Lin
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Mingxuan Pang
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Huile Jin
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Xiaochun Yu
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Shun Wang
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
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8
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Talvitie J, Alanko I, Bulatov E, Koivula J, Pöllänen T, Helaja J. Phenanthrenequinone-Sensitized Photocatalytic Synthesis of Polysubstituted Quinolines from 2-Vinylarylimines. Org Lett 2021; 24:274-278. [PMID: 34928166 PMCID: PMC8762703 DOI: 10.1021/acs.orglett.1c03934] [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] [Indexed: 11/30/2022]
Abstract
![]()
Visible-light-excited
9,10-phenanthrenequinone (PQ*) was used as
a photocatalyst for the synthesis of polysubstituted quinolines via
the electrocyclization of 2-vinylarylimines. Up to quantitative yields
of 2,4-disubstituted quinolines were received after 1 h of excitation
with blue LEDs at room temperature when MgCO3 was used
as an additive in DCM. On the basis of experimental and DFT studies,
we propose that PQ* induces one-electron oxidation of the imine substrate
that triggers the electrocyclization mechanism.
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Affiliation(s)
- Juulia Talvitie
- Department of Chemistry, University of Helsinki, A. I. Virtasen aukio 1, 00014 Helsinki, Finland
| | - Iida Alanko
- Department of Chemistry, University of Helsinki, A. I. Virtasen aukio 1, 00014 Helsinki, Finland
| | - Evgeny Bulatov
- Department of Chemistry, University of Helsinki, A. I. Virtasen aukio 1, 00014 Helsinki, Finland
| | - Juho Koivula
- Department of Chemistry, University of Helsinki, A. I. Virtasen aukio 1, 00014 Helsinki, Finland
| | - Topias Pöllänen
- Department of Chemistry, University of Helsinki, A. I. Virtasen aukio 1, 00014 Helsinki, Finland
| | - Juho Helaja
- Department of Chemistry, University of Helsinki, A. I. Virtasen aukio 1, 00014 Helsinki, Finland
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9
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Enders L, Casadio DS, Aikonen S, Lenarda A, Wirtanen T, Hu T, Hietala S, Ribeiro LS, Pereira MFR, Helaja J. Air oxidized activated carbon catalyst for aerobic oxidative aromatizations of N-heterocycles. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00878a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Air oxidized activated carbon offers a robust, efficient, metal-free and recyclable catalyst for aromatizations of N-heterocycles, O2 being the terminal oxidant.
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Affiliation(s)
- Lukas Enders
- Department of Chemistry, University of Helsinki, A. I. Virtasen aukio 1, P.O. Box 55, 00014 Finland
| | - David S. Casadio
- Department of Chemistry, University of Helsinki, A. I. Virtasen aukio 1, P.O. Box 55, 00014 Finland
| | - Santeri Aikonen
- Department of Chemistry, University of Helsinki, A. I. Virtasen aukio 1, P.O. Box 55, 00014 Finland
| | - Anna Lenarda
- Department of Chemistry, University of Helsinki, A. I. Virtasen aukio 1, P.O. Box 55, 00014 Finland
| | - Tom Wirtanen
- Department of Chemistry, University of Helsinki, A. I. Virtasen aukio 1, P.O. Box 55, 00014 Finland
| | - Tao Hu
- Research Unit of Sustainable Chemistry, Faculty of Technology, University of Oulu, 90014 Oulu, Finland
| | - Sami Hietala
- Department of Chemistry, University of Helsinki, A. I. Virtasen aukio 1, P.O. Box 55, 00014 Finland
| | - Lucília S. Ribeiro
- Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials (LSRE-LCM), Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
| | - Manuel Fernando R. Pereira
- Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials (LSRE-LCM), Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
| | - Juho Helaja
- Department of Chemistry, University of Helsinki, A. I. Virtasen aukio 1, P.O. Box 55, 00014 Finland
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