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Sterligov G, Ageshina AA, Rzhevskiy SA, Shurupova OV, Topchiy MA, Minaeva LI, Asachenko AF. One-Pot Modified Madelung Synthesis of 3-Tosyl- and 3-Cyano-1,2-disubstituted Indoles. ACS OMEGA 2022; 7:38505-38511. [PMID: 36340104 PMCID: PMC9631411 DOI: 10.1021/acsomega.2c03754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
A One-pot, two-step procedure for the synthesis of 1,2-disubstituted-3-tosyl and 1,2-disubstituted-3-cyanoindoles from the corresponding N-(o-tolyl)benzamides is reported. The developed procedure is operationally simple, does not utilize any transition metals, and provides variably substituted indoles in good yields from readily available starting materials.
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Jang J, Kim DY. Synthesis of trifluoromethylated 4H‐1‐benzopyran derivatives via photocatalytic trifluoromethylation/oxidation/conjugate addition, and cyclization sequences of vinyl phenols. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jihoon Jang
- Soonchunhyang University Department of Chemistry and Department of ICT Environmental Health System KOREA, REPUBLIC OF
| | - Dae Young Kim
- Soonchunhyang University Department of Chemistry and Department of ICT Environmental Health Syntem Asan 336745 Chungnam KOREA, REPUBLIC OF
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Gao X, Pan X, Wang P, Jin Z. Visible Light-induced Phosphine-Catalyzed Perfluoroalkylation of Indoles. Org Chem Front 2022. [DOI: 10.1039/d2qo01091g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A photo-induced, catalytic phosphine-promoted perfluoroalkylation reaction of indole molecules is developed. Inexpensive and readily available PPh3 is used in a catalytic amount as the sole reaction initiator in this protocol....
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Debrauwer V, Leito I, Lõkov M, Tshepelevitsh S, Parmentier M, Blanchard N, Bizet V. Synthesis and Physicochemical Properties of 2-SF 5-(Aza)Indoles, a New Family of SF 5 Heterocycles. ACS ORGANIC & INORGANIC AU 2021; 1:43-50. [PMID: 36855754 PMCID: PMC9954346 DOI: 10.1021/acsorginorgau.1c00010] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Structural diversity in heterocyclic chemistry is key to unlocking new properties and modes of action. In this regard, heterocycles embedding emerging fluorinated substituents hold great promise. Herein is described a strategy to access 2-SF5-(aza)indoles for the first time. The sequence relies on the radical addition of SF5Cl to the alkynyl π-system of 2-ethynyl anilines followed by a cyclization reaction. A telescoped sequence is proposed, making this strategy very appealing and reproducible on a gram scale. Downstream functionalizations are also demonstrated, allowing an easy diversification of N- and C3-positions. Ames test, pK a, log P, and differential scanning calorimetry measurements of several fluorinated 2-Rf-indoles are also disclosed. These studies highlight the strategic advantages that a C2-pentafluorosulfanylated motif impart to a privileged scaffold such as an indole.
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Affiliation(s)
- Vincent Debrauwer
- Université
de Haute-Alsace, Université de Strasbourg, CNRS, LIMA, UMR 7042, 68000 Mulhouse, France
| | - Ivo Leito
- Institute
of Chemistry, University of Tartu, Tartu 50411, Estonia
| | - Märt Lõkov
- Institute
of Chemistry, University of Tartu, Tartu 50411, Estonia
| | | | - Michael Parmentier
- Chemical
and Analytical Development, Novartis Pharma
AG, CH-4056 Basel, Switzerland
| | - Nicolas Blanchard
- Université
de Haute-Alsace, Université de Strasbourg, CNRS, LIMA, UMR 7042, 68000 Mulhouse, France,
| | - Vincent Bizet
- Université
de Haute-Alsace, Université de Strasbourg, CNRS, LIMA, UMR 7042, 68000 Mulhouse, France,
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Jang J, Kim DY. Visible Light Photocatalytic Trifluoromethylation/SET Oxidation/Cycloaddition Sequences of 2‐Vinyl Phenols: Multicomponent Synthesis of 4
H
‐Chromenes. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100118] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Jihoon Jang
- Department of Chemistry and Department of ICT Environmental Health System Soonchunhyang University Asan 31538, Chungnam Republic of Korea
| | - Dae Young Kim
- Department of Chemistry and Department of ICT Environmental Health System Soonchunhyang University Asan 31538, Chungnam Republic of Korea
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Electrophilic reactions as methods of modification of pyrrolobenzimidazolones and pyrroloquinazolinones. Chem Heterocycl Compd (N Y) 2020. [DOI: 10.1007/s10593-020-02751-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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8
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Effect of solvent polarity on the regioselective hydroxyalkylation of indole with trifluoroacetaldehyde hemiacetals. Struct Chem 2019. [DOI: 10.1007/s11224-019-01386-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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9
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Mestre J, Lishchynskyi A, Castillón S, Boutureira O. Trifluoromethylation of Electron-Rich Alkenyl Iodides with Fluoroform-Derived "Ligandless" CuCF 3. J Org Chem 2018; 83:8150-8160. [PMID: 29916255 DOI: 10.1021/acs.joc.8b00927] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
We herein present a flexible approach for the incorporation of CF3 units into a predefined site of electron-rich alkenes that exploits the regiocontrolled introduction of an iodine handle and subsequent trifluoromethylation of the C(sp2)-I bond using fluoroform-derived "ligandless" CuCF3. The broad substrate scope and functional group tolerance together with the scalability and purity of the resulting products enabled the controlled, late-stage synthesis of single regioisomers of complex CF3-scaffolds, such as sugars, nucleosides (antivirals), and heterocycles (indoles and chromones), with potential for academic and industrial applications.
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Affiliation(s)
- Jordi Mestre
- Departament de Química Analítica i Química Orgànica , Universitat Rovira i Virgili , C/Marcel·lí Domingo 1 , 43007 Tarragona , Spain.,Institute of Chemical Research of Catalonia (ICIQ) , The Barcelona Institute of Science and Technology (BIST) , Av. Països Catalans 16 , 43007 Tarragona , Spain
| | - Anton Lishchynskyi
- Institute of Chemical Research of Catalonia (ICIQ) , The Barcelona Institute of Science and Technology (BIST) , Av. Països Catalans 16 , 43007 Tarragona , Spain
| | - Sergio Castillón
- Departament de Química Analítica i Química Orgànica , Universitat Rovira i Virgili , C/Marcel·lí Domingo 1 , 43007 Tarragona , Spain
| | - Omar Boutureira
- Departament de Química Analítica i Química Orgànica , Universitat Rovira i Virgili , C/Marcel·lí Domingo 1 , 43007 Tarragona , Spain
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Mphahlele MJ, Parbhoo N. Synthesis, Evaluation of Cytotoxicity and Molecular Docking Studies of the 7-Acetamido Substituted 2-Aryl-5-bromo-3-trifluoroacetylindoles as Potential Inhibitors of Tubulin Polymerization. Pharmaceuticals (Basel) 2018; 11:ph11020059. [PMID: 29891753 PMCID: PMC6027433 DOI: 10.3390/ph11020059] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 05/22/2018] [Accepted: 05/25/2018] [Indexed: 02/07/2023] Open
Abstract
The 3-trifluoroacetyl⁻substituted 7-acetamido-2-aryl-5-bromoindoles 5a⁻h were prepared and evaluated for potential antigrowth effect in vitro against human lung cancer (A549) and cervical cancer (HeLa) cells and for the potential to inhibit tubulin polymerization. The corresponding intermediates, namely, the 3-unsubstituted 7-acetyl-2-aryl-5-bromoindole 2a⁻d and 7-acetamido-2-aryl-5-bromoindole 4a⁻d were included in the assays in order to correlate both structural variations and cytotoxicity. No cytotoxicity was observed for compounds 2a⁻d and their 3-trifluoroacetyl⁻substituted derivatives 5a⁻d against both cell lines. The 7-acetamido derivatives 4⁻d exhibited modest cytotoxicity against both cell lines. All of the 3-trifluoroacetyl⁻substituted 7-acetamido-2-aryl-5-bromoindoles 5e⁻h were found to be more active against both cell lines when compared to the chemotherapeutic drug, Melphalan. The most active compound, 5g, induced programmed cell death (apoptosis) in a caspase-dependent manner for both A549 and HeLa cells. Compounds 5e⁻h were found to significantly inhibit tubulin polymerization against indole-3-carbinol and colchicine as reference standards. Molecular docking of 5g into the colchicine-binding site suggests that the compounds bind to tubulin by different type of interactions including pi-alkyl, amide-pi stacked and alkyl interactions as well as hydrogen bonding with the protein residues to elicit anticancer activity.
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Affiliation(s)
- Malose J Mphahlele
- Department of Chemistry, College of Science, Engineering and Technology, University of South Africa, Private Bag X06, Florida 1710, South Africa.
| | - Nishal Parbhoo
- Department of Life & Consumer Sciences, College of Agriculture and Environmental Sciences, University of South Africa, Private Bag X06, Florida 1710, South Africa.
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Sathiyaraj S, Shanavas A, Kumar KA, Sathiyaseelan A, Senthilselvan J, Kalaichelvan P, Nasar AS. The first example of bis(indolyl)methane based hyperbranched polyurethanes: Synthesis, solar cell application and anti-bacterial and anti-oxidant properties. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.08.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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13
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Yamamoto Y, Ohkubo E, Shibuya M. Synthesis of 3-Aryl-2-(trifluoromethyl)indoles via Copper-Catalyzed Hydroarylation and Subsequent Cadogan Cyclization. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700122] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yoshishiko Yamamoto
- Department of Basic Medicinal Sciences; Graduate School of Pharmaceutical Sciences; Nagoya University; Chikusa Nagoya 464-8601 Japan
| | - Erina Ohkubo
- Department of Basic Medicinal Sciences; Graduate School of Pharmaceutical Sciences; Nagoya University; Chikusa Nagoya 464-8601 Japan
| | - Masatoshi Shibuya
- Department of Basic Medicinal Sciences; Graduate School of Pharmaceutical Sciences; Nagoya University; Chikusa Nagoya 464-8601 Japan
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Gao GL, Yang C, Xia W. Selective C–H trifluoromethylation of benzimidazoles through photoredox catalysis. Chem Commun (Camb) 2017; 53:1041-1044. [DOI: 10.1039/c6cc08975e] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
This protocol presented a new strategy for visible light induced C–H trifluoromethylation at the C4 of benzimidazoles using Togni's reagent in the presence of fac-Ir(ppy)3.
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Affiliation(s)
- Guo-Lin Gao
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- State Key Laboratory of Urban Water Resource and Environment
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150080
| | - Chao Yang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- State Key Laboratory of Urban Water Resource and Environment
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150080
| | - Wujiong Xia
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- State Key Laboratory of Urban Water Resource and Environment
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150080
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15
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Mphahlele MJ, Maluleka MM. Trifluoroacetylation of indole-chalcones derived from the 2-amino-3-(arylethynyl)-5-bromo-iodochalcones. J Fluor Chem 2016. [DOI: 10.1016/j.jfluchem.2016.07.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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