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Zubkov MO, Dilman AD. Radical reactions enabled by polyfluoroaryl fragments: photocatalysis and beyond. Chem Soc Rev 2024; 53:4741-4785. [PMID: 38536104 DOI: 10.1039/d3cs00889d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Polyfluoroarenes have been known for a long time, but they are most often used as fluorinated building blocks for the synthesis of aromatic compounds. At the same time, due to peculiar fluorine effect, they have unique properties that provide applications in various fields ranging from synthesis to materials science. This review summarizes advances in the radical chemistry of polyfluoroarenes, which have become possible mainly with the advent of photocatalysis. Transformations of the fluorinated ring via the C-F bond activation, as well as use of fluoroaryl fragments as activating groups and hydrogen atom transfer agents are discussed. The ability of fluoroarenes to serve as catalysts is also considred.
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Affiliation(s)
- Mikhail O Zubkov
- 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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Budnikov AS, Krylov IB, Ushakov IE, Subbotina IR, Monin FK, Nikishin GI, Efimov NN, Gorbunov DE, Gritsan NP, Tretyakov EV, Yu B, Terent'ev AO. Two Discoveries in One Crystal: σ-Type Oxime Radical as an Unforeseen Building Block in Molecular Magnetics and Its Spatial Structure. Inorg Chem 2023. [PMID: 37399244 DOI: 10.1021/acs.inorgchem.3c00947] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
In the present work, the study of the unusual interaction between copper hexafluoroacetylacetonate and the diacetyliminoxyl radical resulted in two discoveries from different fields: the determination of the oxime radical spatial structure and the introduction of an oxime radical into the field of molecular magnetic material design. Oxime radicals are key plausible intermediates in the processes of oxidative CH-functionalization and in the synthesis of functionalized isoxazolines from oximes. Due to the lack of X-ray diffraction data for oxime radicals, the knowledge about their structure is based mainly on indirect approaches, spectroscopic methods (electron paramagnetic resonance and IR), and quantum chemical calculations. The structure of the oxime radical was determined for the first time by stabilizing the diacetyliminoxyl radical in the form of its complex with copper (II) hexafluoroacetylacetonate (Cu(hfac)2), followed by single-crystal X-ray diffraction analysis. Although oxime radicals are known to undergo oxidative coupling with acetylacetonate ligands in transition-metal complexes, a complex is formed with intact hfac ligands. X-ray diffraction studies have shown that the oxime radical is coordinated with copper ions through the oxygen atoms of the carbonyl groups without the direct involvement of the C═N-O• radical moiety. The structure of the coordinated diacetyliminoxyl is in good agreement with the density functional theory (DFT) prediction for free diacetyliminoxyl due to the very weak interaction of the radical molecule with copper ions. Remarkably, both weak ferromagnetic and antiferromagnetic interactions between Cu (II) and oxime radicals have been revealed by modeling the temperature dependence of magnetic susceptibility and confirmed by DFT calculations, rendering diacetyliminoxyl a promising building block for the design of molecular magnets.
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Affiliation(s)
- Alexander S Budnikov
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, 47 Leninsky prosp., Moscow 119991, Russian Federation
| | - Igor B Krylov
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, 47 Leninsky prosp., Moscow 119991, Russian Federation
| | - Ivan E Ushakov
- A. N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, 28 Vavilova Str., Moscow 119991, Russian Federation
| | - Irina R Subbotina
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, 47 Leninsky prosp., Moscow 119991, Russian Federation
| | - Fedor K Monin
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, 47 Leninsky prosp., Moscow 119991, Russian Federation
| | - Gennady I Nikishin
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, 47 Leninsky prosp., Moscow 119991, Russian Federation
| | - Nikolay N Efimov
- N. S. Kurnakov Institute of General and Inorganic Chemistry, Leninsky Prospect 31, Moscow 119991, Russia
| | - Dmitry E Gorbunov
- V. V. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russian Federation
| | - Nina P Gritsan
- V. V. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russian Federation
| | - Evgeny V Tretyakov
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, 47 Leninsky prosp., Moscow 119991, Russian Federation
| | - Bing Yu
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Alexander O Terent'ev
- N. D. Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences, 47 Leninsky prosp., Moscow 119991, Russian Federation
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Fedyushin PA, Serykh AA, Vinogradov AS, Mezhenkova TV, Platonov VE, Nasyrova DI, Samigullina AI, Fedin MV, Zayakin IA, Tretyakov EV. Biradical with a polyfluorinated terphenylene backbone. Russ Chem Bull 2022. [DOI: 10.1007/s11172-022-3577-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Fedyushin PA, Akyeva AY, Syroeshkin MA, Rybalova TV, Stass DV, Korolev VA, Tretyakov EV, Egorov MP. Synthesis, structure, and properties of tert-butyl perfluorobiphenyl nitroxide. Russ Chem Bull 2022. [DOI: 10.1007/s11172-022-3553-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Burykina JV, Kobelev AD, Shlapakov NS, Kostyukovich AY, Fakhrutdinov AN, König B, Ananikov VP. Intermolecular Photocatalytic Chemo‐, Stereo‐ and Regioselective Thiol–Yne–Ene Coupling Reaction. Angew Chem Int Ed Engl 2022; 61:e202116888. [PMID: 35147284 PMCID: PMC9313788 DOI: 10.1002/anie.202116888] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Indexed: 11/11/2022]
Abstract
The first example of an intermolecular thiol–yne–ene coupling reaction is reported for the one‐pot construction of C−S and C−C bonds. Thiol–yne–ene coupling opens a new dimension in building molecular complexity to access densely functionalized products. The employment of Eosin Y/DBU/MeOH photocatalytic system suppresses hydrogen atom transfer (HAT) and associative reductant upconversion (via C−S three‐electron σ‐bond formation). Investigation of the reaction mechanism by combining online ESI‐UHRMS, EPR spectroscopy, isotope labeling, determination of quantum yield, cyclic voltammetry, Stern–Volmer measurements and computational modeling revealed a unique photoredox cycle with four radical‐involving stages. As a result, previously unavailable products of the thiol–yne–ene reaction were obtained in good yields with high selectivity. They can serve as stable precursors for synthesizing synthetically demanding activated 1,3‐dienes.
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Affiliation(s)
- Julia V. Burykina
- Zelinsky Institute of Organic Chemistry Russian Academy of Sciences Leninsky Prospect, 47 Moscow 119991 Russia
| | - Andrey D. Kobelev
- Zelinsky Institute of Organic Chemistry Russian Academy of Sciences Leninsky Prospect, 47 Moscow 119991 Russia
- Lomonosov Moscow State University Leninskie Gory GSP-1, 1-3 Moscow 119991 Russia
| | - Nikita S. Shlapakov
- Zelinsky Institute of Organic Chemistry Russian Academy of Sciences Leninsky Prospect, 47 Moscow 119991 Russia
- Institut für Organische Chemie Universität Regensburg Universitätstrasse 31 93053 Regensburg Germany
| | - Alexander Yu. Kostyukovich
- Zelinsky Institute of Organic Chemistry Russian Academy of Sciences Leninsky Prospect, 47 Moscow 119991 Russia
| | - Artem N. Fakhrutdinov
- Zelinsky Institute of Organic Chemistry Russian Academy of Sciences Leninsky Prospect, 47 Moscow 119991 Russia
| | - Burkhard König
- Institut für Organische Chemie Universität Regensburg Universitätstrasse 31 93053 Regensburg Germany
| | - Valentine P. Ananikov
- Zelinsky Institute of Organic Chemistry Russian Academy of Sciences Leninsky Prospect, 47 Moscow 119991 Russia
- Lomonosov Moscow State University Leninskie Gory GSP-1, 1-3 Moscow 119991 Russia
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Burykina JV, Kobelev AD, Shlapakov NS, Kostyukovich AY, Fakhrutdinov AN, König B, Ananikov VP. Intermolecular Photocatalytic Chemo‐, Stereo‐ and Regioselective Thiol‐yne‐ene Coupling Reaction. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202116888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Julia. V. Burykina
- Zelinsky Institute of Organic Chemistry RAS: Institut organiceskoj himii imeni N D Zelinskogo RAN Catalysis RUSSIAN FEDERATION
| | - Andrey D. Kobelev
- Zelinsky Institute of Organic Chemistry RAS: Institut organiceskoj himii imeni N D Zelinskogo RAN Catalysis RUSSIAN FEDERATION
| | - Nikita S. Shlapakov
- Zelinsky Institute of Organic Chemistry RAS: Institut organiceskoj himii imeni N D Zelinskogo RAN Catalysis RUSSIAN FEDERATION
| | - Alexander Yu. Kostyukovich
- Zelinsky Institute of Organic Chemistry RAS: Institut organiceskoj himii imeni N D Zelinskogo RAN Catalysis RUSSIAN FEDERATION
| | - Artem N. Fakhrutdinov
- Zelinsky Institute of Organic Chemistry RAS: Institut organiceskoj himii imeni N D Zelinskogo RAN Catalysis RUSSIAN FEDERATION
| | - Burkhard König
- University of Regensburg: Universitat Regensburg Organic GERMANY
| | - Valentine P. Ananikov
- Zelinsky Institute of Organic Chemistry Russian Academy of Sciences Leninsky Prospekt 47 119991 Moscow RUSSIAN FEDERATION
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Tretyakov EV, Ovcharenko VI, Terent'ev AO, Krylov IB, Magdesieva TV, Mazhukin DG, Gritsan NP. Conjugated nitroxide radicals. RUSSIAN CHEMICAL REVIEWS 2022. [DOI: 10.1070/rcr5025] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Politanskaya LV, Fedyushin PA, Rybalova TV, Bogomyakov AS, Asanbaeva NB, Tretyakov EV. Fluorinated Organic Paramagnetic Building Blocks for Cross-Coupling Reactions. Molecules 2020; 25:molecules25225427. [PMID: 33228185 PMCID: PMC7699513 DOI: 10.3390/molecules25225427] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/15/2020] [Accepted: 11/18/2020] [Indexed: 12/03/2022] Open
Abstract
New stable polyfluorinated nitroxide radicals for use in cross-coupling reactions, namely, N-tert-butyl-N-oxyamino-2,3,5,6-tetrafluoro-4-iodobenzene and N-tert-butyl-N-oxyamino-2,3,5,6-tetrafluoro-4-ethynylbenzene, were prepared from perfluoroiodobenzene. The reaction of the polyfluoro derivative with tert-butylamine under autoclaving conditions leading to the formation of N-tert-butyl-2,3,5,6-tetrafluoro-4-iodoaniline proved to be the key stage of the whole process. The fluorinated tert-butyl iodophenyl nitroxide was found to form in a solid state via N–O···I halogen bonds, a one-dimensional assembly of the radicals. The acceptor role of the nitroxide group in the halogen bonding changes to a donor role when the nitroxide reacts with Cu(hfac)2. In the last case, zero-dimensional assembly prevails, giving a three-spin complex with axial coordinated nitroxide groups and, as a consequence, causing ferromagnetic intramolecular exchange interactions between Cu(II) and radical spins.
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Affiliation(s)
- Larisa V. Politanskaya
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, 9 Ac. Lavrentiev Avenue, 630090 Novosibirsk, Russia; (L.V.P.); (P.A.F.); (T.V.R.); (N.B.A.)
| | - Pavel A. Fedyushin
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, 9 Ac. Lavrentiev Avenue, 630090 Novosibirsk, Russia; (L.V.P.); (P.A.F.); (T.V.R.); (N.B.A.)
| | - Tatyana V. Rybalova
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, 9 Ac. Lavrentiev Avenue, 630090 Novosibirsk, Russia; (L.V.P.); (P.A.F.); (T.V.R.); (N.B.A.)
| | - Artem S. Bogomyakov
- International Tomography Center, Siberian Branch of Russian Academy of Sciences, 3a Institutskaya Str., 630090 Novosibirsk, Russia;
| | - Nargiz B. Asanbaeva
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, 9 Ac. Lavrentiev Avenue, 630090 Novosibirsk, Russia; (L.V.P.); (P.A.F.); (T.V.R.); (N.B.A.)
| | - Evgeny V. Tretyakov
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, 9 Ac. Lavrentiev Avenue, 630090 Novosibirsk, Russia; (L.V.P.); (P.A.F.); (T.V.R.); (N.B.A.)
- N.D. Zelinsky Institute of Organic Chemistry, Leninsky Prospect, 47, 119991 Moscow, Russia
- Correspondence:
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Synthesis of Nitroxide Diradical Using a New Approach. Molecules 2020; 25:molecules25112701. [PMID: 32545156 PMCID: PMC7321179 DOI: 10.3390/molecules25112701] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 06/06/2020] [Accepted: 06/09/2020] [Indexed: 11/28/2022] Open
Abstract
A new synthetic pathway to diradical organic systems is proposed. The effectiveness of this approach was exemplified by the synthesis of a new nitroxide diradical. An interaction of perfluorobiphenyl with lithium tert-butylamide, followed by oxidation of the thusly formed N4,N4′-di-tert-butyl-2,2′,3,3′,5,5′,6,6′-octafluorobiphenyl-4,4′-diamine with meta-chloroperoxybenzoic acid, led to the polyfluorinated nitroxide diradical, N,N′-(perfluorobiphenyl-4,4′-diyl)bis(N-tert-butyl(oxyl)amine), with a good total yield. The polyfluorinated diradical is stable and can be isolated in free form and completely characterized. The structure of the nitroxide diradical was proved by single-crystal X-ray diffraction analysis. According to the X-ray diffraction data, the diradical is considerably twisted: dihedral angles between the planes of the nitroxide groups and aromatic cycles are 65.1° and 69.5°, and between aromatic cycles 52.6°. Quantum chemical calculations predict well-balanced size of both intramolecular and intermolecular exchange interactions with J from −2.65 to −1.14 cm−1.
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