1
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Rubanov ZM, Levin VV, Dilman AD. Dual Acridine/Decatungstate Photocatalysis for the Decarboxylative Radical Addition of Carboxylic Acids to Azomethines. Org Lett 2024; 26:3174-3178. [PMID: 38587457 DOI: 10.1021/acs.orglett.4c00778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
A concept for the dual use of acridine and tetrabutylammonium decatungstate photocatalysts in the reactions of carboxylic acids is proposed. Imines generated in situ from aldehydes and p-methoxyaniline, as well as other azomethines, were used as radical acceptors. The role of the decatungstate is believed to facilitate the turnover of the acridine photocatalyst by means of hydrogen atom transfer.
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Affiliation(s)
- Zakhar M Rubanov
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
| | - Vitalij V Levin
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
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2
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Lipilin DL, Zubkov MO, Kosobokov MD, Dilman AD. Direct conversion of carboxylic acids to free thiols via radical relay acridine photocatalysis enabled by N-O bond cleavage. Chem Sci 2024; 15:644-650. [PMID: 38179514 PMCID: PMC10762721 DOI: 10.1039/d3sc05513b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 12/04/2023] [Indexed: 01/06/2024] Open
Abstract
Carboxylic acids and thiols are basic chemical compounds with diverse utility and widespread reactivity. However, the direct conversion of unprotected acids to thiols is hampered due to a fundamental problem - free thiols are incompatible with the alkyl radicals formed on decarboxylation of carboxylic acids. Herein, we describe a concept for the direct photocatalytic thiolation of unprotected acids allowing unprotected thiols and their derivatives to be obtained. The method is based on the application of a thionocarbonate reagent featuring the N-O bond. The reagent serves both for the rapid trapping of alkyl radicals and for the facile regeneration of the acridine-type photocatalyst.
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Affiliation(s)
- Dmitry L Lipilin
- N. D. Zelinsky Institute of Organic Chemistry Leninsky Prosp. 47 119991 Moscow Russian Federation
| | - Mikhail O Zubkov
- N. D. Zelinsky Institute of Organic Chemistry Leninsky Prosp. 47 119991 Moscow Russian Federation
| | - Mikhail D Kosobokov
- N. D. Zelinsky Institute of Organic Chemistry Leninsky Prosp. 47 119991 Moscow Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry Leninsky Prosp. 47 119991 Moscow Russian Federation
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3
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Rubanov ZM, Levin VV, Dilman AD. One-Pot Transformation of Aldehydes to Ketones via Minisci-Type Reaction of Imines. Org Lett 2023. [PMID: 38016095 DOI: 10.1021/acs.orglett.3c03764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
A method for the conversion of aldehydes to ketones via the preliminary formation of aldiminines is described. The imines are involved in acid promoted Minisci-type reaction with alkyl radicals generated from esters of N-hydroxylphthalimide under photoredox conditions. Aminyl radical cations formed after the addition of the iminium ions are believed to be key intermediates, which determine the reaction outcome.
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Affiliation(s)
- Zakhar M Rubanov
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
- Mendeleev University of Chemical Technology, Miusskaya Sq., 9, Moscow 125047, Russian Federation
| | - Vitalij V Levin
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
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4
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Abstract
A metal-free one-pot process for the gem-difluoroolefination of amides is described. The reaction is based on interaction of generated in situ α-chloroiminium salts with difluorinated phosphorus ylide formed from difluorocarbene and triphenylphosphine. The olefination involves nucleophile-assisted dephosphorylation and proceeds within one hour at low temperature. The gem-difluoroenamines were used in further transformations leading to a variety of fluoroalkylated amines.
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Affiliation(s)
- Alexey L Trifonov
- N. D. Zelinsky Institute of Organic Chemistry, 119991, Moscow, Leninsky prosp. 47, Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry, 119991, Moscow, Leninsky prosp. 47, Russian Federation
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5
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Kostromitin VS, Sorokin AO, Levin VV, Dilman AD. C-F Activation of Fluorinated Esters Using Photocatalytically Generated Diaminoalkyl Radical. Org Lett 2023; 25:6598-6602. [PMID: 37643219 DOI: 10.1021/acs.orglett.3c02570] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
A method for hydrofluoroalkylation of alkenes with trifluoroacetic esters under visible light irradiation affording difluorinated products is described. The reaction involves readily available trimethyltriazinane as a shoichiometric reducing agent, which generates a diamino-substituted alkyl radical serving as a strong electron donor. It is believed that the cleavage of the C-F bond by a triazinane-derived radical involves single electron reduction coupled with fluoride transfer.
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Affiliation(s)
- Vladislav S Kostromitin
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russian Federation
| | - Artem O Sorokin
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russian Federation
| | - Vitalij V Levin
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
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6
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Levin VV, Dilman AD. Visible-Light Promoted Radical Fluoroalkylation of O- and N-Substituted Alkenes. CHEM REC 2023; 23:e202300038. [PMID: 37017493 DOI: 10.1002/tcr.202300038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/21/2023] [Indexed: 04/06/2023]
Abstract
Interaction of enol ethers enol acetates, enamides and enamines with fluorinated reagents may be considered as a reliable method for the synthesis of organofluorine compounds. While classic nucleophile/electrophile substitution or addition mechanisms cannot be realized for coupling of these components, their intrinsic reactivities are revealed with the aid of photoredox catalysis. A combination of these electron donating and accepting components provides a perfect balance needed for individual redox steps, which in some cases may proceed even without a photocatalyst. The same electronic factors also support the key C,C-bond forming event involving addition of fluorinated radical at the electron rich double bond.
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Affiliation(s)
- Vitalij V Levin
- N. D. Zelinsky Institute of Organic Chemistry, 119991, Moscow, Leninsky prosp. 47, Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry, 119991, Moscow, Leninsky prosp. 47, Russian Federation
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7
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Kostromitin VS, Levin VV, Dilman AD. Dual Photoredox/Copper Catalyzed Fluoroalkylative Alkene Difunctionalization. J Org Chem 2023; 88:6252-6262. [PMID: 37043633 DOI: 10.1021/acs.joc.3c00448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
A method for performing radical difunctionalization of alkenes using fluorinated halides and a nucleophilic component (thiolate and iodide anions) is described. These nucleophilic fragments serve as redox active groups for performing subsequent transformations. The difunctionalization reaction involves photoredox generation of fluorinated radicals, their addition to the double bond followed by copper-promoted C-S or C-I bond formation. The primary products can be further coupled with silyl enol ethers, α-(trifluoromethyl)styrenes, and trimethylsilyl cyanide affording a variety of fluorinated compounds.
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Affiliation(s)
- Vladislav S Kostromitin
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
- Lomonosov Moscow State University, Department of Chemistry, 119991 Moscow, Leninskie Gory 1-3, Russian Federation
| | - Vitalij V Levin
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
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8
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Gladkov AA, Levin VV, Dilman AD. Photoredox Promoted Barbier-Type Reaction of Alkyl Iodides with N-Alkyl and N-Aryl Imines. J Org Chem 2023; 88:1260-1269. [PMID: 36608025 DOI: 10.1021/acs.joc.2c02598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The reaction of organozinc reagents with unactivated imines is accelerated when performed in the presence of a photocatalyst under blue light irradiation. Coordination between Lewis acidic zinc iodide and the imine is a key factor responsible for the reaction efficiency. The method can be carried out using alkyl iodides under Barbier conditions.
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Affiliation(s)
- Anton A Gladkov
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation.,Lomonosov Moscow State University, Department of Chemistry, 119991, Moscow, Leninskie Gory 1-3, Russian Federation
| | - Vitalij V Levin
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
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9
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Kostromitin VS, Sorokin AO, Levin VV, Dilman AD. Aminals as powerful XAT-reagents: activation of fluorinated alkyl chlorides. Chem Sci 2023; 14:3229-3234. [PMID: 36970090 PMCID: PMC10034144 DOI: 10.1039/d3sc00027c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 02/20/2023] [Indexed: 02/23/2023] Open
Abstract
Readily available 1,3,5-trimethyl-1,3,5-triazinane serves as an efficient reagent for the halogen atom transfer. Under photocatalytic conditions, the triazinane generates α-aminoalkyl radical, which can activate the C-Cl bond of fluorinated alkyl...
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Affiliation(s)
- Vladislav S Kostromitin
- N. D. Zelinsky Institute of Organic Chemistry Leninsky prosp. 47 119991 Moscow Russian Federation
- Lomonosov Moscow State University, Department of Chemistry Leninskie Gory 1-3 119991 Moscow Russian Federation
| | - Artem O Sorokin
- N. D. Zelinsky Institute of Organic Chemistry Leninsky prosp. 47 119991 Moscow Russian Federation
- Lomonosov Moscow State University, Department of Chemistry Leninskie Gory 1-3 119991 Moscow Russian Federation
| | - Vitalij V Levin
- N. D. Zelinsky Institute of Organic Chemistry Leninsky prosp. 47 119991 Moscow Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry Leninsky prosp. 47 119991 Moscow Russian Federation
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10
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Panferova LI, Zubkov MO, Kosobokov MD, Dilman AD. Light-Promoted Dearylation of Perfluorinated Aryl Sulfides with N-Heterocyclic Carbene–Borane. Org Lett 2022; 24:8559-8563. [DOI: 10.1021/acs.orglett.2c03585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Liubov I. Panferova
- N.D. Zelinsky Institute of Organic Chemistry, Leninsky Prospekt 47, 119991 Moscow, Russian Federation
| | - Mikhail O. Zubkov
- N.D. Zelinsky Institute of Organic Chemistry, Leninsky Prospekt 47, 119991 Moscow, Russian Federation
| | - Mikhail D. Kosobokov
- N.D. Zelinsky Institute of Organic Chemistry, Leninsky Prospekt 47, 119991 Moscow, Russian Federation
| | - Alexander D. Dilman
- N.D. Zelinsky Institute of Organic Chemistry, Leninsky Prospekt 47, 119991 Moscow, Russian Federation
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11
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Rubanov ZM, Levin VV, Kokorekin VA, Dilman AD. Novel fluorescent difluoroboryl chelate complexes derived from N-benzothiazolyl hydrazones. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Ilin EA, Smirnov VO, Dilman AD. Generation of fluoro(thio)carbenes from Me3SiCF2SAr. J Fluor Chem 2022. [DOI: 10.1016/j.jfluchem.2022.110025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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13
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Zhilyaev K, Lipilin D, Kosobokov M, Samigullina A, Dilman AD. Preparation and Evaluation of Sterically Hindered Acridine Photocatalysts. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kirill Zhilyaev
- N.D. Zelinsky Institute of Organic Chemistry RUSSIAN FEDERATION
| | - Dmitry Lipilin
- N.D. Zelinsky Institute of Organic Chemistry RUSSIAN FEDERATION
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14
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Kostromitin VS, Levin VV, Dilman AD. Organophotoredox-Catalyzed Reductive Tetrafluoroalkylation of Alkenes. J Org Chem 2022; 88:6523-6531. [PMID: 35561256 DOI: 10.1021/acs.joc.2c00712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A method for the hydroperfluoroalkylation of alkenes with 1,2-dibromotetrafluoroethane leading to tetrafluorinated bromides is described. The reaction is conveniently performed under blue light irradiation using an organic photocatalyst and ascorbic acid as a reducing agent. Primary products can be further functionalized via radical pathways affording various tetrafluorinated compounds.
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Affiliation(s)
- Vladislav S Kostromitin
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation.,Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, 119991 Moscow, Russian Federation
| | - Vitalij V Levin
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
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15
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Abstract
Thiolation of carboxylic acids using a disulfide reagent having tetrafluoropyridinyl groups is described. The light-mediated process is performed using an acridine-type photocatalyst. Primary, secondary, tertiary, and heteroatom-substituted carboxylic acids can be thiolated, and the method can be applied to the late-stage modification of a range of naturally occurring compounds and drugs. The fluorinated pyridine fragment is believed to enable the C-S bond formation. The resulting sulfides were used as redox-active radical precursors.
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Affiliation(s)
- Mikhail O Zubkov
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
| | - Mikhail D Kosobokov
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
| | - Vitalij V Levin
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
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16
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Gladkov AA, Chernov GN, Levin VV, Kokorekin VA, Dilman AD. Photoredox Activation of Organozinc Reagents: Barbier-Type Reaction of Alkyl Halides with α-(Trifluoromethyl)styrenes. Org Lett 2021; 23:9645-9648. [PMID: 34818011 DOI: 10.1021/acs.orglett.1c03917] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Organozinc reagents may be activated under blue light irradiation using an organic photocatalyst to generate alkyl radicals. The radicals are trapped by α-(trifluoromethyl)styrenes leading to gem-difluorinated products after elimination of fluoride. The reaction can be conveniently performed under Barbier conditions starting from organic iodides and bromides and elemental zinc.
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Affiliation(s)
- Anton A Gladkov
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation.,Lomonosov Moscow State University, Department of Chemistry, Leninskie Gory 1-3, 119991 Moscow, Russian Federation
| | - Grigory N Chernov
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation.,Lomonosov Moscow State University, Department of Chemistry, Leninskie Gory 1-3, 119991 Moscow, Russian Federation
| | - Vitalij V Levin
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
| | - Vladimir A Kokorekin
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
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17
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Dmitriev IA, Levin VV, Dilman AD. Boron Chelates Derived from N-Acylhydrazones as Radical Acceptors: Photocatalyzed Coupling of Hydrazones with Carboxylic Acids. Org Lett 2021; 23:8973-8977. [PMID: 34752109 DOI: 10.1021/acs.orglett.1c03501] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Difluoroboryl complexes obtained from N-acyl hydrazones upon brief treatment with boron trifluoride and allylic silane serve as efficient acceptors of alkyl radicals. The reaction of the boryl chelates with carboxylic acids in the presence of an acridine-type photocatalyst leading to N-acyl hydrazides is described. The efficiency of addition at the C═N bond of the chelates is determined by the formation of a nitrogen-centered radical stabilized by the boron-containing heterocyclic ring.
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Affiliation(s)
- Igor A Dmitriev
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
| | - Vitalij V Levin
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
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18
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Affiliation(s)
- Vladislav S. Kostromitin
- N. D. Zelinsky Institute of Organic Chemistry 119991 Moscow Leninsky prosp. 47 Russian Federation
- Lomonosov Moscow State University Department of Chemistry 119991 Moscow Leninskie Gory 1–3 Russian Federation
| | - Artem A. Zemtsov
- N. D. Zelinsky Institute of Organic Chemistry 119991 Moscow Leninsky prosp. 47 Russian Federation
| | - Vitalij V. Levin
- N. D. Zelinsky Institute of Organic Chemistry 119991 Moscow Leninsky prosp. 47 Russian Federation
| | - Alexander D. Dilman
- N. D. Zelinsky Institute of Organic Chemistry 119991 Moscow Leninsky prosp. 47 Russian Federation
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19
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Supranovich VI, Volodin AD, Korlyukov AA, Hu J, Dilman AD. Reaction of (bromodifluoromethyl)trimethylsilane with HMPA: Structural studies. J Fluor Chem 2021. [DOI: 10.1016/j.jfluchem.2021.109881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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20
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Abstract
A diversity-oriented and C2-selective synthesis of difluoroalkyl-substituted heteroarenes from three fragments, N-methoxyazinium salts, difluorocarbene, and electrophilic or radical reagents, is described. The reaction proceeds via the addition of difluorinated phosphorus ylide to in situ methylated heteroarene N-oxides, leading to phosphonium salts, which can undergo further transformations under basic or photoinduced conditions.
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Affiliation(s)
- Alexey L Trifonov
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
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21
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Levin VV, Dilman AD. One-pot synthesis of α-trifluoromethylstyrenes from aryl ketones and the Ruppert–Prakash reagent. Mendeleev Communications 2021. [DOI: 10.1016/j.mencom.2021.09.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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22
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Lipilin DL, Frumkin AE, Tyurin AY, Levin VV, Dilman AD. Photoredox Catalyzed Dealkylative Aromatic Halogen Substitution with Tertiary Amines. Molecules 2021; 26:3323. [PMID: 34205980 PMCID: PMC8199326 DOI: 10.3390/molecules26113323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/27/2021] [Accepted: 05/29/2021] [Indexed: 11/16/2022] Open
Abstract
A reaction of aromatic halides bearing electron-withdrawing groups with tertiary amines in the presence of an iridium catalyst under blue light irradiation is described. Products of the aromatic substitution of the halide by the dialkylamino fragment are obtained. The interaction of aryl radicals with tertiary amines to generate zwitterionic radical species is believed to be the key factor responsible for the reaction efficiency.
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Affiliation(s)
| | | | | | | | - Alexander D. Dilman
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky Prosp. 47, 119991 Moscow, Russia; (D.L.L.); (A.E.F.); (A.Y.T.); (V.V.L.)
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23
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Kostromitin VS, Zemtsov AA, Kokorekin VA, Levin VV, Dilman AD. Atom-transfer radical addition of fluoroalkyl bromides to alkenes via a photoredox/copper catalytic system. Chem Commun (Camb) 2021; 57:5219-5222. [PMID: 33908970 DOI: 10.1039/d1cc01609a] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A method for the addition of fluorinated alkyl bromides to alkenes is described. The reaction proceeds under visible light irradiation in the presence of two catalysts: Ir(ppy)3 and N-heterocyclic carbene ligated copper bromide (IMesCuBr). The role of the iridium photocatalyst is to generate the fluoralkyl radical, while the copper promotes formation of the carbon-bromine bond.
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Affiliation(s)
- Vladislav S Kostromitin
- N. D. Zelinsky Institute of Organic Chemistry, Moscow 119991, Leninsky prosp. 47, Russian Federation and Lomonosov Moscow State University, Department of Chemistry, Moscow 119991, Leninskie Gory 1-3, Russian Federation
| | - Artem A Zemtsov
- N. D. Zelinsky Institute of Organic Chemistry, Moscow 119991, Leninsky prosp. 47, Russian Federation
| | - Vladimir A Kokorekin
- N. D. Zelinsky Institute of Organic Chemistry, Moscow 119991, Leninsky prosp. 47, Russian Federation
| | - Vitalij V Levin
- N. D. Zelinsky Institute of Organic Chemistry, Moscow 119991, Leninsky prosp. 47, Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry, Moscow 119991, Leninsky prosp. 47, Russian Federation
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24
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Abstract
Interaction of sulfides bearing a tetrafluoropyridinyl group with bis(catecholato)diboron followed by treatment with pinacol and triethylamine affording pinacol boronic esters is described. The reaction is promoted by an organic photocatalyst (3DPA2FBN) under irradiation with 400 nm light, and works with primary, secondary, and tertiary sulfides. The electron depleting character of the fluorinated pyridine fragment plays an important role in generating alkyl radicals.
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Affiliation(s)
- Liubov I Panferova
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
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25
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Supranovich VI, Levin VV, Kokorekin VA, Dilman AD. Generation of Alkyl Radicals from Thiols via Zinc Thiolates: Application for the Synthesis of
gem
‐Difluorostyrenes. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100088] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
| | - Vitalij V. Levin
- N. D. Zelinsky Institute of Organic Chemistry 119991 Moscow Leninsky prosp. 47 Russian Federation
| | - Vladimir A. Kokorekin
- N. D. Zelinsky Institute of Organic Chemistry 119991 Moscow Leninsky prosp. 47 Russian Federation
| | - Alexander D. Dilman
- N. D. Zelinsky Institute of Organic Chemistry 119991 Moscow Leninsky prosp. 47 Russian Federation
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26
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Worp BA, Kosobokov MD, Dilman AD. Visible‐Light‐Promoted Reversible Sulfide/Iodide Exchange in Fluoroalkyl Sulfides Enabled by Electron Donor‐Acceptor Complex Formation. CHEMPHOTOCHEM 2021. [DOI: 10.1002/cptc.202100042] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Boris A. Worp
- N. D. Zelinsky Institute of Organic Chemistry 119991 Moscow Leninsky prosp. 47 Russian Federation
- Lomonosov Moscow State University Department of Chemistry 119991 Moscow Leninskie Gory 1–3 Russian Federation
| | - Mikhail D. Kosobokov
- N. D. Zelinsky Institute of Organic Chemistry 119991 Moscow Leninsky prosp. 47 Russian Federation
| | - Alexander D. Dilman
- N. D. Zelinsky Institute of Organic Chemistry 119991 Moscow Leninsky prosp. 47 Russian Federation
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27
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Zemtsov AA, Lunkov SS, Levin VV, Dilman AD. Synthesis of Trifluoromethylated Dithiocarbamates via Photocatalyzed Substitution Reaction: Pentafluoropyridine as Activating Reagent. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001572] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Artem A. Zemtsov
- N. D. Zelinsky Institute of Organic Chemistry Leninsky prosp. 47 119991 Moscow Russian Federation
| | - Sergey S. Lunkov
- N. D. Zelinsky Institute of Organic Chemistry Leninsky prosp. 47 119991 Moscow Russian Federation
- Moscow State University Department of Chemistry Leninskie Gory 1–3 119991 Moscow Russian Federation
| | - Vitalij V. Levin
- N. D. Zelinsky Institute of Organic Chemistry Leninsky prosp. 47 119991 Moscow Russian Federation
| | - Alexander D. Dilman
- N. D. Zelinsky Institute of Organic Chemistry Leninsky prosp. 47 119991 Moscow Russian Federation
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28
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Abstract
A hydrophosphination reaction of alkenes with triphenylphosphonium triflate under photocatalytic conditions is described. The reaction is promoted by naphthalene-fused N-acylbenzimidazole and is believed to proceed through intermediate formation of a phosphinyl radical cation. The resulting phosphonium salts are directly involved in the Wittig reaction leading to homologated alkenes.
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Affiliation(s)
- Vitalij V Levin
- N. D. Zelinsky Institute of Organic Chemistry, Moscow 119991, Leninsky prosp. 47, Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry, Moscow 119991, Leninsky prosp. 47, Russian Federation
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29
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Supranovich VI, Dmitriev IA, Dilman AD. Synthesis of tetrafluorinated piperidines from nitrones via a visible-light-promoted annelation reaction. Beilstein J Org Chem 2021; 16:3104-3108. [PMID: 33437323 PMCID: PMC7783028 DOI: 10.3762/bjoc.16.260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 12/09/2020] [Indexed: 11/23/2022] Open
Abstract
A method for the one-step construction of 3,3,4,4-tetrafluorinated piperidines from nitrones and readily accessible tetrafluorinated iodobromobutane is described. The reaction requires an excess amount of ascorbic acid as the terminal reductant and is performed in the presence of an iridium photocatalyst activated by blue light. The annelation is a result of a radical addition at the nitrone, intramolecular nucleophilic substitution, and reduction of the N–O bond.
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Affiliation(s)
- Vyacheslav I Supranovich
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
| | - Igor A Dmitriev
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation.,Moscow State University, Department of Chemistry, 119991, Moscow, Leninskie Gory 1-3, Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry, 119991 Moscow, Leninsky prosp. 47, Russian Federation
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30
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Abstract
A reaction of intramolecularly disposed phosphonium and phenoxide (or thiophenoxide) fragments with difluorocarbene affording all-carbon λ5-phosphoranes is described.
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Affiliation(s)
- Vladimir O. Smirnov
- N. D. Zelinsky Institute of Organic Chemistry
- Leninsky prosp. 47
- Moscow 119991
- Russian Federation
| | - Alexander D. Volodin
- A. N. Nesmeyanov Institute of Organoelement Compounds
- Vavilov str. 28
- Moscow 119991
- Russian Federation
| | - Alexander A. Korlyukov
- A. N. Nesmeyanov Institute of Organoelement Compounds
- Vavilov str. 28
- Moscow 119991
- Russian Federation
| | - Alexander D. Dilman
- N. D. Zelinsky Institute of Organic Chemistry
- Leninsky prosp. 47
- Moscow 119991
- Russian Federation
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31
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Affiliation(s)
- Boris A. Worp
- N. D. Zelinsky Institute of Organic Chemistry 119991 Moscow Leninsky prosp. 47 Russian Federation
- Lomonosov Moscow State University Department of Chemistry 119991 Moscow Leninskie Gory 1–3 Russian Federation
| | - Mikhail D. Kosobokov
- N. D. Zelinsky Institute of Organic Chemistry 119991 Moscow Leninsky prosp. 47 Russian Federation
| | - Vitalij V. Levin
- N. D. Zelinsky Institute of Organic Chemistry 119991 Moscow Leninsky prosp. 47 Russian Federation
| | - Alexander D. Dilman
- N. D. Zelinsky Institute of Organic Chemistry 119991 Moscow Leninsky prosp. 47 Russian Federation
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32
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Panferova LI, Zubkov MO, Kokorekin VA, Levin VV, Dilman AD. Using the Thiyl Radical for Aliphatic Hydrogen-Atom Transfer: Thiolation of Unactivated C-H Bonds. Angew Chem Int Ed Engl 2020; 60:2849-2854. [PMID: 33146419 DOI: 10.1002/anie.202011400] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 10/10/2020] [Indexed: 12/18/2022]
Abstract
A metal- and catalyst-free thiyl-radical-mediated activation of alkanes is described. Tetrafluoropyridinyl disulfide is used to perform thiolation of the C-H bonds under irradiation with 400 nm light-emitting diodes. The key C-H activation step is believed to proceed via hydrogen-atom abstraction effected by the fluorinated thiyl radical. Secondary, tertiary, and heteroatom-substituted C-H bonds can be involved in the thiolation reaction. The resulting sulfides have wide potential as photoredox-active radical precursors in reactions with alkenes and heteroarenes.
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Affiliation(s)
- Liubov I Panferova
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991, Moscow, Russian Federation
| | - Mikhail O Zubkov
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991, Moscow, Russian Federation
| | - Vladimir A Kokorekin
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991, Moscow, Russian Federation
| | - Vitalij V Levin
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991, Moscow, Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991, Moscow, Russian Federation
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33
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Panferova LI, Zubkov MO, Kokorekin VA, Levin VV, Dilman AD. Using the Thiyl Radical for Aliphatic Hydrogen‐Atom Transfer: Thiolation of Unactivated C−H Bonds. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202011400] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Liubov I. Panferova
- N. D. Zelinsky Institute of Organic Chemistry Leninsky prosp. 47 119991 Moscow Russian Federation
| | - Mikhail O. Zubkov
- N. D. Zelinsky Institute of Organic Chemistry Leninsky prosp. 47 119991 Moscow Russian Federation
| | - Vladimir A. Kokorekin
- N. D. Zelinsky Institute of Organic Chemistry Leninsky prosp. 47 119991 Moscow Russian Federation
| | - Vitalij V. Levin
- N. D. Zelinsky Institute of Organic Chemistry Leninsky prosp. 47 119991 Moscow Russian Federation
| | - Alexander D. Dilman
- N. D. Zelinsky Institute of Organic Chemistry Leninsky prosp. 47 119991 Moscow Russian Federation
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34
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Supranovich VI, Levin VV, Dilman AD. Photoredox-catalyzed silyldifluoromethylation of silyl enol ethers. Beilstein J Org Chem 2020; 16:1550-1553. [PMID: 32704320 PMCID: PMC7356207 DOI: 10.3762/bjoc.16.126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 06/15/2020] [Indexed: 11/23/2022] Open
Abstract
A method for the light-mediated fluoroalkylation of silyl enol ethers with (bromodifluoromethyl)trimethylsilane followed by a reduction of the primary products with sodium borohydride is described. An 18 W, 375 nm LED was used as the light source. The reaction is performed in the presence of a gold photocatalyst, which effects the generation of a (trimethylsilyl)difluoromethyl radical via cleavage of the carbon–bromine bond.
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Affiliation(s)
- Vyacheslav I Supranovich
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
| | - Vitalij V Levin
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
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35
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Affiliation(s)
- Vladimir O. Smirnov
- N. D. Zelinsky Institute of Organic Chemistry 119991 Moscow Leninsky prosp. 47 Russian Federation
| | - Alexander D. Volodin
- A. N. Nesmeyanov Institute of Organoelement Compounds 119991 Moscow Vavilov str. 28 Russian Federation
| | - Alexander A. Korlyukov
- A. N. Nesmeyanov Institute of Organoelement Compounds 119991 Moscow Vavilov str. 28 Russian Federation
- N. I. Pirogov Russian National Research Medical University Ostrovitianov str., 1 117997 Moscow Russian Federation
| | - Alexander D. Dilman
- N. D. Zelinsky Institute of Organic Chemistry 119991 Moscow Leninsky prosp. 47 Russian Federation
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36
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Smirnov VO, Volodin AD, Korlyukov AA, Dilman AD. Trapping of Difluorocarbene by Frustrated Lewis Pairs. Angew Chem Int Ed Engl 2020; 59:12428-12431. [PMID: 32160367 DOI: 10.1002/anie.202001354] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 03/08/2020] [Indexed: 12/30/2022]
Affiliation(s)
- Vladimir O. Smirnov
- N. D. Zelinsky Institute of Organic Chemistry 119991 Moscow Leninsky prosp. 47 Russian Federation
| | - Alexander D. Volodin
- A. N. Nesmeyanov Institute of Organoelement Compounds 119991 Moscow Vavilov str. 28 Russian Federation
| | - Alexander A. Korlyukov
- A. N. Nesmeyanov Institute of Organoelement Compounds 119991 Moscow Vavilov str. 28 Russian Federation
- N. I. Pirogov Russian National Research Medical University Ostrovitianov str., 1 117997 Moscow Russian Federation
| | - Alexander D. Dilman
- N. D. Zelinsky Institute of Organic Chemistry 119991 Moscow Leninsky prosp. 47 Russian Federation
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37
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Trifonov AL, Panferova LI, Levin VV, Kokorekin VA, Dilman AD. Visible-Light-Promoted Iododifluoromethylation of Alkenes via (Phosphonio)difluoromethyl Radical Cation. Org Lett 2020; 22:2409-2413. [DOI: 10.1021/acs.orglett.0c00604] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Alexey L. Trifonov
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
- D. Mendeleev University of Chemical Technology of Russia, Higher Chemical College, Miusskaya sq. 9, 125047 Moscow, Russian Federation
| | - Liubov I. Panferova
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
| | - Vitalij V. Levin
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
| | - Vladimir A. Kokorekin
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
| | - Alexander D. Dilman
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
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38
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Ilin EA, Smirnov VO, Volodin AD, Korlyukov AA, Dilman AD. ortho-Dialkylamino arylboranes as efficient reagents for difluorocarbene trapping. Chem Commun (Camb) 2020; 56:7140-7142. [DOI: 10.1039/d0cc02567d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A readily accessible reagent bearing ortho-oriented amino and boryl groups efficiently traps difluorocarbene.
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Affiliation(s)
- Egor A. Ilin
- N. D. Zelinsky Institute of Organic Chemistry
- 119991 Moscow
- Russian Federation
- Department of Chemistry
- Lomonosov Moscow State University
| | - Vladimir O. Smirnov
- N. D. Zelinsky Institute of Organic Chemistry
- 119991 Moscow
- Russian Federation
| | - Alexander D. Volodin
- A. N. Nesmeyanov Institute of Organoelement Compounds
- 119991 Moscow
- Russian Federation
| | | | - Alexander D. Dilman
- N. D. Zelinsky Institute of Organic Chemistry
- 119991 Moscow
- Russian Federation
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39
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Kosobokov MD, Zubkov MO, Levin VV, Kokorekin VA, Dilman AD. Fluoroalkyl sulfides as photoredox-active coupling reagents for alkene difunctionalization. Chem Commun (Camb) 2020; 56:9453-9456. [DOI: 10.1039/d0cc04617e] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A visible-light-promoted fluoroalkylation-thiolation of alkenes is described.
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Affiliation(s)
- Mikhail D. Kosobokov
- N. D. Zelinsky Institute of Organic Chemistry
- 119991 Moscow, Leninsky prosp. 47
- Russian Federation
| | - Mikhail O. Zubkov
- N. D. Zelinsky Institute of Organic Chemistry
- 119991 Moscow, Leninsky prosp. 47
- Russian Federation
| | - Vitalij V. Levin
- N. D. Zelinsky Institute of Organic Chemistry
- 119991 Moscow, Leninsky prosp. 47
- Russian Federation
| | - Vladimir A. Kokorekin
- N. D. Zelinsky Institute of Organic Chemistry
- 119991 Moscow, Leninsky prosp. 47
- Russian Federation
| | - Alexander D. Dilman
- N. D. Zelinsky Institute of Organic Chemistry
- 119991 Moscow, Leninsky prosp. 47
- Russian Federation
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40
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Affiliation(s)
| | - Grigory N. Chernov
- N. D. Zelinsky Institute of Organic Chemistry; Leninsky prosp. 47 119991 Moscow Russian Federation
- Department of Chemistry; Moscow State University; Leninskie Gory 1-3 119991 Moscow Russian Federation
| | - Vitalij V. Levin
- N. D. Zelinsky Institute of Organic Chemistry; Leninsky prosp. 47 119991 Moscow Russian Federation
| | - Alexander D. Dilman
- N. D. Zelinsky Institute of Organic Chemistry; Leninsky prosp. 47 119991 Moscow Russian Federation
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41
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Zubkov MO, Kosobokov MD, Levin VV, Kokorekin VA, Korlyukov AA, Hu J, Dilman AD. A novel photoredox-active group for the generation of fluorinated radicals from difluorostyrenes. Chem Sci 2019; 11:737-741. [PMID: 34123046 PMCID: PMC8146146 DOI: 10.1039/c9sc04643g] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
A 4-tetrafluoropyridinylthio group was suggested as a new photoredox-active moiety. The group can be directly installed on difluorostyrenes in a single step by the thiolene click reaction. It proceeds upon visible light catalysis with 9-phenylacridine providing various difluorinated sulfides as radical precursors. Single electron reduction of the C–S bond with the formation of fluoroalkyl radicals is enabled by the electron-poor azine ring. The intermediate difluorinated sulfides were involved in a series of photoredox reactions with silyl enol ethers, alkenes, nitrones and an alkenyl trifluoroborate. A new photoredox-active group was applied for the generation of fluorinated radicals from difluorostyrenes under blue light irradiation.![]()
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Affiliation(s)
- Mikhail O Zubkov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences 47 Leninsky prosp. 119991 Moscow Russia .,Higher Chemical College, D. Mendeleev University of Chemical Technology of Russia 9 Miusskaya sq. 125047 Moscow Russia
| | - Mikhail D Kosobokov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences 47 Leninsky prosp. 119991 Moscow Russia
| | - Vitalij V Levin
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences 47 Leninsky prosp. 119991 Moscow Russia
| | - Vladimir A Kokorekin
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences 47 Leninsky prosp. 119991 Moscow Russia .,I. M. Sechenov First Moscow State Medical University 8-2 Trubetskaya st. 119991 Moscow Russia
| | - Alexander A Korlyukov
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences 28 Vavilova st. 119991 Moscow Russia.,Pirogov Russian National Research Medical University 1 Ostrovitianov st. 117997 Moscow Russia
| | - Jinbo Hu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences 345 Ling-Ling Road 200032 Shanghai China
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences 47 Leninsky prosp. 119991 Moscow Russia
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42
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Zemtsov AA, Ashirbaev SS, Levin VV, Kokorekin VA, Korlyukov AA, Dilman AD. Photoredox Reaction of 2-Mercaptothiazolinium Salts with Silyl Enol Ethers. J Org Chem 2019; 84:15745-15753. [PMID: 31693367 DOI: 10.1021/acs.joc.9b02478] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A method for the generation of free radicals from thiazolinium salts upon photocatalytic reduction is described. The thiazolinium salts are generated by treatment with methyl triflate of 2-mercaptothiazolines, which can be readily obtained from alkyl bromides and tosylates via a nucleophilic substitution reaction or by hydrothiolation of alkenes. Silyl enol ethers were used to trap the radicals, furnishing ketones after successive single-electron oxidation and elimination of the silyl cation.
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Affiliation(s)
- Artem A Zemtsov
- N. D. Zelinsky Institute of Organic Chemistry , Leninsky prosp. 47 , 119991 Moscow , Russian Federation
| | - Salavat S Ashirbaev
- N. D. Zelinsky Institute of Organic Chemistry , Leninsky prosp. 47 , 119991 Moscow , Russian Federation
| | - Vitalij V Levin
- N. D. Zelinsky Institute of Organic Chemistry , Leninsky prosp. 47 , 119991 Moscow , Russian Federation
| | - Vladimir A Kokorekin
- N. D. Zelinsky Institute of Organic Chemistry , Leninsky prosp. 47 , 119991 Moscow , Russian Federation.,Sechenov First Moscow State Medical University , Trubetskaya st. 8-2 , 119991 Moscow , Russian Federation
| | - Alexander A Korlyukov
- A. N. Nesmeyanov Institute of Organoelement Compounds , Vavilov str. 28 , 119991 Moscow , Russian Federation.,N. I. Pirogov Russian National Research Medical University , Ostrovitianov str. 1 , 117997 Moscow , Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry , Leninsky prosp. 47 , 119991 Moscow , Russian Federation
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43
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Aleksandrova MI, Ivanov AY, Dilman AD, Vasilyev AV. Electrophilic Activation of 1-Aryl-3-bromo-2,2-difluoropropan-1-ones by Triflic Acid in Reactions with Arenes. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Maiia I. Aleksandrova
- Department of Organic Chemistry; Institute of Chemistry; Saint Petersburg State University; Universitetskaya nab., 7/9 199034 Saint Petersburg Russia
| | - Alexander Yu. Ivanov
- Center for Magnetic Resonance; Research Park; St. Petersburg State University; Universitetskiy pr., 26 198504 Saint Petersburg Petrodvoretz Russia
| | - Alexander D. Dilman
- N. D. Zelinsky Institute of Organic Chemistry; Leninsky prosp., 47 119991 Moscow Russia
| | - Aleksander V. Vasilyev
- Department of Organic Chemistry; Institute of Chemistry; Saint Petersburg State University; Universitetskaya nab., 7/9 199034 Saint Petersburg Russia
- Department of Chemistry; Saint Petersburg State Forest Technical University; Institutsky per., 5 194021 Saint Petersburg Russia
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44
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Fedorov OV, Scherbinina SI, Levin VV, Dilman AD. Light-Mediated Dual Phosphine-/Copper-Catalyzed Atom Transfer Radical Addition Reaction. J Org Chem 2019; 84:11068-11079. [DOI: 10.1021/acs.joc.9b01649] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Oleg V. Fedorov
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
| | - Sofya I. Scherbinina
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
- Higher Chemical College, D. Mendeleev University of Chemical Technology of Russia, Miusskaya sq. 9, 125047 Moscow, Russian Federation
| | - Vitalij V. Levin
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
| | - Alexander D. Dilman
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991 Moscow, Russian Federation
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45
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Abstract
A convenient method for performing a thiol-ene reaction is described. The reaction is performed under blue-light irradiation and catalyzed by photoactive Lewis basic molecules such as acridine orange or naphthalene-fused N-acylbenzimidazole. It is believed that the process is initiated by a proton-coupled electron transfer process within the complex between the thiol and the Lewis basic catalyst.
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Affiliation(s)
- Vitalij V Levin
- N. D. Zelinsky Institute of Organic Chemistry , Leninsky Prospect 47 , Moscow 119991 , Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry , Leninsky Prospect 47 , Moscow 119991 , Russian Federation
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46
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Abstract
A method for the radical addition toward N-tosylimines based on light promoted C-H activation by tetrabutylammonium decatungstate is described. The reaction proceeds under irradiation using 400 nm light emitting diodes in conventional glassware. The method can be applied for alkylations (cycloalkanes, ethers, dimethylformamide) and acylation (primary aliphatic aldehydes) of both aromatic and aliphatic N-tosylimines.
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Affiliation(s)
- Vyacheslav I Supranovich
- N. D. Zelinsky Institute of Organic Chemistry , 119991 Moscow , Leninsky prosp. 47 , Russian Federation
| | - Vitalij V Levin
- N. D. Zelinsky Institute of Organic Chemistry , 119991 Moscow , Leninsky prosp. 47 , Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry , 119991 Moscow , Leninsky prosp. 47 , Russian Federation
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Politanskaya LV, Selivanova GA, Panteleeva EV, Tretyakov EV, Platonov VE, Nikul’shin PV, Vinogradov AS, Zonov YV, Karpov VM, Mezhenkova TV, Vasilyev AV, Koldobskii AB, Shilova OS, Morozova SM, Burgart YV, Shchegolkov EV, Saloutin VI, Sokolov VB, Aksinenko AY, Nenajdenko VG, Moskalik MY, Astakhova VV, Shainyan BA, Tabolin AA, Ioffe SL, Muzalevskiy VM, Balenkova ES, Shastin AV, Tyutyunov AA, Boiko VE, Igumnov SM, Dilman AD, Adonin NY, Bardin VV, Masoud SM, Vorobyeva DV, Osipov SN, Nosova EV, Lipunova GN, Charushin VN, Prima DO, Makarov AG, Zibarev AV, Trofimov BA, Sobenina LN, Belyaeva KV, Sosnovskikh VY, Obydennov DL, Usachev SA. Organofluorine chemistry: promising growth areas and challenges. Russ Chem Rev 2019. [DOI: 10.1070/rcr4871] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Affiliation(s)
- Igor A. Dmitriev
- N. D. Zelinsky Institute of Organic Chemistry; 119991 Moscow Leninsky prosp. 47 Russian Federation
- Moscow State University; Department of Chemistry; 119991 Moscow Leninskie Gory 1-3 Russian Federation
| | | | - Vitalij V. Levin
- N. D. Zelinsky Institute of Organic Chemistry; 119991 Moscow Leninsky prosp. 47 Russian Federation
| | - Alexander D. Dilman
- N. D. Zelinsky Institute of Organic Chemistry; 119991 Moscow Leninsky prosp. 47 Russian Federation
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Panferova LI, Levin VV, Struchkova MI, Dilman AD. Light-mediated copper-catalyzed phosphorus/halogen exchange in 1,1-difluoroalkylphosphonium salts. Chem Commun (Camb) 2019; 55:1314-1317. [DOI: 10.1039/c8cc09115c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Phosphorus/halogen exchange in fluorinated phosphonium salts is promoted by light and catalyzed by copper(i) halides.
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Affiliation(s)
- Liubov I. Panferova
- N. D. Zelinsky Institute of Organic Chemistry
- 119991 Moscow
- Russian Federation
| | - Vitalij V. Levin
- N. D. Zelinsky Institute of Organic Chemistry
- 119991 Moscow
- Russian Federation
| | | | - Alexander D. Dilman
- N. D. Zelinsky Institute of Organic Chemistry
- 119991 Moscow
- Russian Federation
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Panferova LI, Chernov GN, Levin VV, Kokorekin VA, Dilman AD. Photoredox mediated annelation of iododifluoromethylated alcohols with 1,1-diarylethylenes. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.10.062] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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