1
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Kraemer Y, Buldt JA, Kong WY, Stephens AM, Ragan AN, Park S, Haidar ZC, Patel AH, Shey R, Dagan R, McLoughlin CP, Fettinger JC, Tantillo DJ, Pitts CR. Overcoming a Radical Polarity Mismatch in Strain-Release Pentafluorosulfanylation of [1.1.0]Bicyclobutanes: An Entryway to Sulfone- and Carbonyl-Containing SF 5-Cyclobutanes. Angew Chem Int Ed Engl 2024; 63:e202319930. [PMID: 38237059 PMCID: PMC11045327 DOI: 10.1002/anie.202319930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Indexed: 04/26/2024]
Abstract
The first assortment of achiral pentafluorosulfanylated cyclobutanes (SF5-CBs) are now synthetically accessible through strain-release functionalization of [1.1.0]bicyclobutanes (BCBs) using SF5Cl. Methods for both chloropentafluorosulfanylation and hydropentafluorosulfanylation of sulfone-based BCBs are detailed herein, as well as proof-of-concept that the logic extends to tetrafluoro(aryl)sulfanylation, tetrafluoro(trifluoromethyl)sulfanylation, and three-component pentafluorosulfanylation reactions. The methods presented enable isolation of both syn and anti isomers of SF5-CBs, but we also demonstrate that this innate selectivity can be overridden in chloropentafluorosulfanylation; that is, an anti-stereoselective variant of SF5Cl addition across sulfone-based BCBs can be achieved by using inexpensive copper salt additives. Considering the SF5 group and CBs have been employed individually as nonclassical bioisosteres, structural aspects of these unique SF5-CB "hybrid isosteres" were then contextualized using SC-XRD. From a mechanistic standpoint, chloropentafluorosulfanylation ostensibly proceeds through a curious polarity mismatch addition of electrophilic SF5 radicals to the electrophilic sites of the BCBs. Upon examining carbonyl-containing BCBs, we also observed rare instances whereby radical addition to the 1-position of a BCB occurs. The nature of the key C(sp3)-SF5 bond formation step - among other mechanistic features of the methods we disclose - was investigated experimentally and with DFT calculations. Lastly, we demonstrate compatibility of SF5-CBs with various downstream functionalizations.
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Affiliation(s)
- Yannick Kraemer
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
| | - Jón Atiba Buldt
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
| | - Wang-Yeuk Kong
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
| | - Alexander M Stephens
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
| | - Abbey N Ragan
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
| | - Soojun Park
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
| | - Zane C Haidar
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
| | - Ansh Hiten Patel
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
| | - Rachel Shey
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
| | - Roee Dagan
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
| | - Connor P McLoughlin
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
| | - James C Fettinger
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
| | - Dean J Tantillo
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
| | - Cody Ross Pitts
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
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2
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Qiu W, Liao L, Xu X, Huang H, Xu Y, Zhao X. Catalytic 1,1-diazidation of alkenes. Nat Commun 2024; 15:3632. [PMID: 38684686 PMCID: PMC11058774 DOI: 10.1038/s41467-024-47854-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 04/11/2024] [Indexed: 05/02/2024] Open
Abstract
Compared to well-developed catalytic 1,2-diazidation of alkenes to produce vicinal diazides, the corresponding catalytic 1,1-diazidation of alkenes to yield geminal diazides has not been realized. Here we report an efficient approach for catalytic 1,1-diazidation of alkenes by redox-active selenium catalysis. Under mild conditions, electron-rich aryl alkenes with Z or E or Z/E mixed configuration can undergo migratory 1,1-diazidation to give a series of functionalized monoalkyl or dialkyl geminal diazides that are difficult to access by other methods. The method is also effective for the construction of polydiazides. The formed diazides are relatively safe by TGA-DSC analysis and impact sensitivity tests, and can be easily converted into various valuable molecules. In addition, interesting reactivity that geminal diazides give valuable molecules via the geminal diazidomethyl moiety as a formal leaving group in the presence of Lewis acid is disclosed. Mechanistic studies revealed that a selenenylation-deselenenylation followed by 1,2-aryl migration process is involved in the reactions, which provides a basis for the design of new reactions.
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Affiliation(s)
- Wangzhen Qiu
- Institute of Organic Chemistry and MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Lihao Liao
- Institute of Organic Chemistry and MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, Sun Yat-Sen University, Guangzhou, 510006, P. R. China.
| | - Xinghua Xu
- Institute of Organic Chemistry and MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Hongtai Huang
- Institute of Organic Chemistry and MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Yang Xu
- Institute of Organic Chemistry and MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Xiaodan Zhao
- Institute of Organic Chemistry and MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, Sun Yat-Sen University, Guangzhou, 510006, P. R. China.
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3
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Kraemer Y, Ghiazza C, Ragan AN, Ni S, Lutz S, Neumann EK, Fettinger JC, Nöthling N, Goddard R, Cornella J, Pitts CR. Strain-Release Pentafluorosulfanylation and Tetrafluoro(aryl)sulfanylation of [1.1.1]Propellane: Reactivity and Structural Insight. Angew Chem Int Ed Engl 2022; 61:e202211892. [PMID: 36137228 PMCID: PMC9828730 DOI: 10.1002/anie.202211892] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Indexed: 01/12/2023]
Abstract
We leveraged the recent increase in synthetic accessibility of SF5 Cl and Ar-SF4 Cl compounds to combine chemistry of the SF5 and SF4 Ar groups with strain-release functionalization. By effectively adding SF5 and SF4 Ar radicals across [1.1.1]propellane, we accessed structurally unique bicyclopentanes, bearing two distinct elements of bioisosterism. Upon evaluating these "hybrid isostere" motifs in the solid state, we measured exceptionally short transannular distances; in one case, the distance rivals the shortest nonbonding C⋅⋅⋅C contact reported to date. This prompted SC-XRD and DFT analyses that support the notion that a donor-acceptor interaction involving the "wing" C-C bonds is playing an important role in stabilization. Thus, these heretofore unknown structures expand the palette for highly coveted three-dimensional fluorinated building blocks and provide insight to a more general effect observed in bicyclopentanes.
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Affiliation(s)
- Yannick Kraemer
- Department of ChemistryUniversity of California, Davis1 Shields AvenueDavisCA 95616USA
| | - Clément Ghiazza
- Max-Planck-Institut für KohlenforschungKaiser-Wilhelm-Platz 145470Mülheim an der RuhrGermany
| | - Abbey N. Ragan
- Department of ChemistryUniversity of California, Davis1 Shields AvenueDavisCA 95616USA
| | - Shengyang Ni
- Max-Planck-Institut für KohlenforschungKaiser-Wilhelm-Platz 145470Mülheim an der RuhrGermany
| | - Sigrid Lutz
- Max-Planck-Institut für KohlenforschungKaiser-Wilhelm-Platz 145470Mülheim an der RuhrGermany
| | - Elizabeth K. Neumann
- Department of ChemistryUniversity of California, Davis1 Shields AvenueDavisCA 95616USA
| | - James C. Fettinger
- Department of ChemistryUniversity of California, Davis1 Shields AvenueDavisCA 95616USA
| | - Nils Nöthling
- Max-Planck-Institut für KohlenforschungKaiser-Wilhelm-Platz 145470Mülheim an der RuhrGermany
| | - Richard Goddard
- Max-Planck-Institut für KohlenforschungKaiser-Wilhelm-Platz 145470Mülheim an der RuhrGermany
| | - Josep Cornella
- Max-Planck-Institut für KohlenforschungKaiser-Wilhelm-Platz 145470Mülheim an der RuhrGermany
| | - Cody Ross Pitts
- Department of ChemistryUniversity of California, Davis1 Shields AvenueDavisCA 95616USA
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4
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Eder T, Buß F, Wilm LFB, Seidl M, Podewitz M, Dielmann F. Oxidative Fluorination of Selenium and Tellurium Compounds using a Thermally Stable Phosphonium SF 5 - Salt Accessible from SF 6. Angew Chem Int Ed Engl 2022; 61:e202209067. [PMID: 36018610 PMCID: PMC9826459 DOI: 10.1002/anie.202209067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Indexed: 01/11/2023]
Abstract
Fluorinated group 16 moieties are attractive building blocks in synthetic chemistry but only few synthetic methods are available to prepare them. Herein, we report a new oxidative fluorination reagent capable of stabilizing reactive fluorinated anions. It consists of an SF5 - anion and a chemically inert phosphonium cation and is exceptionally thermally stable. Accordingly, it was used to generate the SeF5 - and TeF5 - anions from the elemental chalcogens and to prepare the unknown tetrafluoro(phenyl)-λ5 -selenate PhSeF4 - and -tellurate PhTeF4 - from the corresponding diphenyl dichalcogenides. In addition, we show that further derivatization of [PhTeF4 ]- by oxidation to trans-PhTeF4 O- and subsequent alkylation gives access to a new class of trans-(alkoxy)(phenyl)tetrafluoro-λ6 -tellanes (trans-PhTeF4 OR), thus providing an approach to introduce the functional group into organic molecules.
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Affiliation(s)
- Tobias Eder
- Institute of GeneralInorganic and Theoretical ChemistryLeopold-Franzens-Universität InnsbruckInnrain 80–826020InnsbruckAustria
- Institute of Inorganic and Analytical ChemistryWestfälische Wilhelms-Universität MünsterCorrensstrasse 28–3048149MünsterGermany
| | - Florenz Buß
- Institute of Inorganic and Analytical ChemistryWestfälische Wilhelms-Universität MünsterCorrensstrasse 28–3048149MünsterGermany
| | - Lukas F. B. Wilm
- Institute of Inorganic and Analytical ChemistryWestfälische Wilhelms-Universität MünsterCorrensstrasse 28–3048149MünsterGermany
| | - Michael Seidl
- Institute of GeneralInorganic and Theoretical ChemistryLeopold-Franzens-Universität InnsbruckInnrain 80–826020InnsbruckAustria
| | - Maren Podewitz
- Institute of Materials ChemistryTU WienGetreidemarkt 91060ViennaAustria
| | - Fabian Dielmann
- Institute of GeneralInorganic and Theoretical ChemistryLeopold-Franzens-Universität InnsbruckInnrain 80–826020InnsbruckAustria
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5
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Eder T, Buß F, Wilm LFB, Seidl M, Podewitz M, Dielmann F. Oxidative Fluorination of Selenium and Tellurium Compounds using a Thermally Stable Phosphonium SF5‐ Salt Accessible from SF6. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Tobias Eder
- Leopold Franzens Universität für Innsbruck: Universitat Innsbruck Inorganic Chemistry AUSTRIA
| | - Florenz Buß
- Westfälische Wilhelms-Universität Münster: Westfalische Wilhelms-Universitat Munster Inorganic Chemistry GERMANY
| | - Lukas F. B. Wilm
- Westfälische Wilhelms-Universität Münster: Westfalische Wilhelms-Universitat Munster Inorganic Chemistry GERMANY
| | - Michael Seidl
- Leopold Franzens Universität für Innsbruck: Universitat Innsbruck Inorganic Chemistry AUSTRIA
| | - Maren Podewitz
- TU Wien: Technische Universitat Wien Institute of Materials Chemistry AUSTRIA
| | - Fabian Dielmann
- Universitat Innsbruck Fakultat fur Chemie und Pharmazie Institut für Allgemeine, Anorganische und Theoretische Chemie Innrain 80-82 6020 Innsbruck AUSTRIA
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6
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Wegener D, Hoffmann KF, Pérez-Bitrián A, Bayindir I, Hadi AN, Wiesner A, Riedel S. Air-stable aryl derivatives of pentafluoroorthotellurate. Chem Commun (Camb) 2022; 58:9694-9697. [PMID: 35959700 PMCID: PMC9404409 DOI: 10.1039/d2cc03936b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 08/05/2022] [Indexed: 01/04/2023]
Abstract
We report on two different sets of air-stable derivatives of pentafluoroorthotellurate containing fluorinated and non-fluorinated aryl groups. The acid cis-PhTeF4OH was obtained in gram scale and further transformed to Ag[cis-PhTeF4O], which was used as a cis-PhTeF4O transfer reagent to obtain [PPh4][cis-PhTeF4O]. Furthermore, the synthesis of trans-(C6F5)2TeF3OH was achieved by a selective hydrolysis of trans-(C6F5)2TeF4 in the presence of KF and subsequent protonation by aHF. Quantum-chemical calculations show a higher acidity and robustness against fluoride abstraction for trans-(C6F5)2TeF3OH compared to cis-PhTeF4OH.
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Affiliation(s)
- Daniel Wegener
- Fachbereich Biologie, Chemie, Pharmazie, Institut für Chemie und Biochemie - Anorganische Chemie, Freie Universität Berlin, Fabeckstraße 34/36, 14195 Berlin, Germany.
| | - Kurt F Hoffmann
- Fachbereich Biologie, Chemie, Pharmazie, Institut für Chemie und Biochemie - Anorganische Chemie, Freie Universität Berlin, Fabeckstraße 34/36, 14195 Berlin, Germany.
| | - Alberto Pérez-Bitrián
- Fachbereich Biologie, Chemie, Pharmazie, Institut für Chemie und Biochemie - Anorganische Chemie, Freie Universität Berlin, Fabeckstraße 34/36, 14195 Berlin, Germany.
| | - Ilayda Bayindir
- Fachbereich Biologie, Chemie, Pharmazie, Institut für Chemie und Biochemie - Anorganische Chemie, Freie Universität Berlin, Fabeckstraße 34/36, 14195 Berlin, Germany.
| | - Amiera N Hadi
- Fachbereich Biologie, Chemie, Pharmazie, Institut für Chemie und Biochemie - Anorganische Chemie, Freie Universität Berlin, Fabeckstraße 34/36, 14195 Berlin, Germany.
| | - Anja Wiesner
- Fachbereich Biologie, Chemie, Pharmazie, Institut für Chemie und Biochemie - Anorganische Chemie, Freie Universität Berlin, Fabeckstraße 34/36, 14195 Berlin, Germany.
| | - Sebastian Riedel
- Fachbereich Biologie, Chemie, Pharmazie, Institut für Chemie und Biochemie - Anorganische Chemie, Freie Universität Berlin, Fabeckstraße 34/36, 14195 Berlin, Germany.
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7
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Khandelwal M, Pemawat G, Khangarot RK. Recent Developments in Nucleophilic Fluorination with Potassium Fluoride (KF): A Review. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Manisha Khandelwal
- Mohanlal Sukhadia University Department of Chemistry UCOS, Durga Nursery Road 313001 Udaipur INDIA
| | - Gangotri Pemawat
- Mohanlal Sukhadia University Department of Chemistry UCOS, Durga Nursery Road 313001 Udaipur INDIA
| | - Rama Kanwar Khangarot
- Mohanlal Sukhadia University Department of Chemistry UCOS, Durga Nursery Road 313001 Udaipur INDIA
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8
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Kraemer Y, Bergman EN, Togni A, Pitts CR. Oxidative Fluorination of Heteroatoms Enabled by Trichloroisocyanuric Acid and Potassium Fluoride. Angew Chem Int Ed Engl 2022; 61:e202205088. [PMID: 35580251 PMCID: PMC9400999 DOI: 10.1002/anie.202205088] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Indexed: 12/27/2022]
Abstract
In synthetic method development, the most rewarding path is seldom a straight line. While our initial entry into pentafluorosulfanyl (SF5 ) chemistry did not go according to plan (due to inaccessibility of reagents such as SF5 Cl at the time), a "detour" led us to establish mild and inexpensive oxidative fluorination conditions that made aryl-SF5 compound synthesis more accessible. The method involved the use of potassium fluoride and trichloroisocyanuric acid (TCICA)-a common swimming pool disinfectant-as opposed to previously employed reagents such as F2 , XeF2 , HF, and Cl2 . Thereafter, curiosity led us to explore applications of TCICA/KF as a more general approach to the synthesis of fluorinated Group 15, 16, and 17 heteroatoms in organic scaffolds; this, in turn, prompted SC-XRD, VT-NMR, computational, and physical organic studies. Ultimately, it was discovered that TCICA/KF can be used to synthesize SF5 Cl, enabling SF5 chemistry in an unexpected way.
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Affiliation(s)
- Yannick Kraemer
- Department of ChemistryUniversity of California, Davis1 Shields AvenueDavisCA 95616USA
| | - Emily Nicole Bergman
- Department of ChemistryUniversity of California, Davis1 Shields AvenueDavisCA 95616USA
| | - Antonio Togni
- Department of Chemistry and Applied BiosciencesETH ZürichVladimir-Prelog-Weg 1ZürichSwitzerland
| | - Cody Ross Pitts
- Department of ChemistryUniversity of California, Davis1 Shields AvenueDavisCA 95616USA
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9
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Ragan AN, Kraemer Y, Kong WY, Prasad S, Tantillo DJ, Pitts CR. Evidence for C–F Bond Formation through Formal Reductive Elimination from Tellurium(VI). Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Abbey N. Ragan
- University of California Davis Chemistry 1 Shields Avenue 95616 Davis UNITED STATES
| | - Yannick Kraemer
- University of California Davis Chemistry 1 Shields Avenue 95616 Davis UNITED STATES
| | - Wang-Yeuk Kong
- University of California Davis Chemistry 1 Shields Avenue 95616 Davis UNITED STATES
| | - Supreeth Prasad
- University of California Davis Chemistry 1 Shields Avenue 95616 Davis UNITED STATES
| | - Dean J. Tantillo
- University of California Davis Chemistry 1 Shields Avenue 95616 Davis UNITED STATES
| | - Cody Ross Pitts
- University of California Davis Department of Chemistry One Shields Avenue 95616 Davis UNITED STATES
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10
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Ragan AN, Kraemer Y, Kong WY, Prasad S, Tantillo DJ, Pitts CR. Evidence for C-F Bond Formation through Formal Reductive Elimination from Tellurium(VI). Angew Chem Int Ed Engl 2022; 61:e202208046. [PMID: 35859267 DOI: 10.1002/anie.202208046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Indexed: 11/10/2022]
Abstract
The fundamental challenge of C-F bond formation by reductive elimination has been met by compounds of select transition metals and fewer main group elements. The work detailed herein expands the list of main group elements known to be capable of reductively eliminating a C-F bond to include tellurium. Surprising and novel modes of both sp2 and sp3 C-F bond formation were observed alongside formation of TeIV cations during two separate attempts to synthesize/characterize fluorinated organotellurium(VI) cations in superacidic media (SbF5 /SO2 ClF). Following detailed low-temperature NMR experiments, the mechanisms of the two unique reductive elimination reactions were probed and investigated using density functional theory (DFT) calculations. Ultimately, we found that an "indirect" reductive elimination pathway is likely operative whereby Sb plays a key role in fluoride abstraction and C-F bond formation, as opposed to unimolecular reductive elimination from a discrete TeVI cation.
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Affiliation(s)
- Abbey N Ragan
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
| | - Yannick Kraemer
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
| | - Wang-Yeuk Kong
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
| | - Supreeth Prasad
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
| | - Dean J Tantillo
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
| | - Cody Ross Pitts
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
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11
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Kraemer Y, Bergman EN, Togni A, Pitts CR. Oxidative Fluorination of Heteroatoms Enabled by Trichloroisocyanuric Acid and Potassium Fluoride. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yannick Kraemer
- Department of Chemistry University of California, Davis 1 Shields Avenue Davis CA 95616 USA
| | - Emily Nicole Bergman
- Department of Chemistry University of California, Davis 1 Shields Avenue Davis CA 95616 USA
| | - Antonio Togni
- Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 Zürich Switzerland
| | - Cody Ross Pitts
- Department of Chemistry University of California, Davis 1 Shields Avenue Davis CA 95616 USA
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12
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Sun N, Zheng K, Sun P, Chen Y, Jin L, Hu B, Shen Z, Hu X. Trichloroisocyanuric Acid‐Promoted Synthesis of Arylselenides and Aryltellurides from Diorganyl Dichalcogenides and Arylboronic Acids at Ambient Temperature. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Nan Sun
- College of Chemical Engineering Zhejiang University of Technology Hangzhou 310032 People's Republic of China
| | - Kai Zheng
- College of Chemical Engineering Zhejiang University of Technology Hangzhou 310032 People's Republic of China
| | - Pengyuan Sun
- College of Chemical Engineering Zhejiang University of Technology Hangzhou 310032 People's Republic of China
| | - Yang Chen
- College of Chemical Engineering Zhejiang University of Technology Hangzhou 310032 People's Republic of China
| | - Liqun Jin
- College of Chemical Engineering Zhejiang University of Technology Hangzhou 310032 People's Republic of China
| | - Baoxiang Hu
- College of Chemical Engineering Zhejiang University of Technology Hangzhou 310032 People's Republic of China
| | - Zhenlu Shen
- College of Chemical Engineering Zhejiang University of Technology Hangzhou 310032 People's Republic of China
| | - Xinquan Hu
- College of Chemical Engineering Zhejiang University of Technology Hangzhou 310032 People's Republic of China
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13
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Liebing P, Pitts CR, Reimann M, Trapp N, Rombach D, Bornemann D, Kaupp M, Togni A. The Supramolecular Structural Chemistry of Pentafluorosulfanyl and Tetrafluorosulfanylene Compounds. Chemistry 2021; 27:6086-6093. [PMID: 33544928 PMCID: PMC8048635 DOI: 10.1002/chem.202100163] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/03/2021] [Indexed: 11/17/2022]
Abstract
The analysis of crystal structures of SF5 - or SF4 -containing molecules revealed that these groups are often surrounded by hydrogen or other fluorine atoms. Even though fluorine prefers F⋅⋅⋅H over F⋅⋅⋅F contacts, the latter appeared to be important in many compounds. In a significant number of datasets, the closest F⋅⋅⋅F contacts are below 95 % of the van der Waals distance of two F atoms. Moreover, a number of repeating structural motifs formed by contacts between SF5 groups was identified, including different supramolecular dimers and infinite chains. Among SF4 -containing molecules, the study focused on SF4 Cl compounds, including the first solid-state structure analyses of these reactive species. Additionally, electrostatic potential surfaces of a series of Ph-SF5 derivatives were calculated, pointing out the substituent influence on the ability of F⋅⋅⋅X contact formation (X=F or other electronegative atom). Interaction energies were calculated for different dimeric arrangements of Ph-SF5 , which were extracted from experimental crystal structure determinations.
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Affiliation(s)
- Phil Liebing
- Institut für ChemieOtto-von-Guericke-Universität MagdeburgUniversitätsplatz 239106MagdeburgGermany
| | - Cody Ross Pitts
- Department of Chemistry and Applied BiosciencesSwiss Federal Institute of Technology, ETH ZurichVladimir-Prelog-Weg 28093ZurichSwitzerland
| | - Marc Reimann
- Institut für Chemie, Theoretische Chemie/ QuantenchemieTechnische Universität BerlinStraße des 17. Juni 13510623BerlinGermany
| | - Nils Trapp
- Department of Chemistry and Applied BiosciencesSwiss Federal Institute of Technology, ETH ZurichVladimir-Prelog-Weg 28093ZurichSwitzerland
| | - David Rombach
- Department of Chemistry and Applied BiosciencesSwiss Federal Institute of Technology, ETH ZurichVladimir-Prelog-Weg 28093ZurichSwitzerland
| | - Dustin Bornemann
- Department of Chemistry and Applied BiosciencesSwiss Federal Institute of Technology, ETH ZurichVladimir-Prelog-Weg 28093ZurichSwitzerland
| | - Martin Kaupp
- Institut für Chemie, Theoretische Chemie/ QuantenchemieTechnische Universität BerlinStraße des 17. Juni 13510623BerlinGermany
| | - Antonio Togni
- Department of Chemistry and Applied BiosciencesSwiss Federal Institute of Technology, ETH ZurichVladimir-Prelog-Weg 28093ZurichSwitzerland
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14
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Bornemann D, Brüning F, Bartalucci N, Wettstein L, Pitts CR. Examining Trichloroisocyanuric Acid and Oxalyl Chloride in Complementary Approaches to Fluorination of Group 15 Heteroatoms. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202000218] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Dustin Bornemann
- Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 2 8093 Zürich Switzerland
| | - Fabian Brüning
- Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 2 8093 Zürich Switzerland
| | - Niccolò Bartalucci
- Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 2 8093 Zürich Switzerland
| | - Lionel Wettstein
- Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 2 8093 Zürich Switzerland
| | - Cody Ross Pitts
- Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 2 8093 Zürich Switzerland
- Department of Chemistry The Scripps Research Institute 10550 N. Torrey Pines Rd La Jolla CA, 92037 USA
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15
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Wang L, Cornella J. A Unified Strategy for Arylsulfur(VI) Fluorides from Aryl Halides: Access to Ar-SOF 3 Compounds. Angew Chem Int Ed Engl 2020; 59:23510-23515. [PMID: 32940381 PMCID: PMC7756513 DOI: 10.1002/anie.202009699] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/01/2020] [Indexed: 12/20/2022]
Abstract
A convenient protocol to selectively access various arylsulfur(VI) fluorides from commercially available aryl halides in a divergent fashion is presented. Firstly, a novel sulfenylation reaction with the electrophilic N-(chlorothio)phthalimide (Cl-S-Phth) and arylzinc reagents afforded the corresponding Ar-S-Phth compounds. Subsequently, the S(II) atom was selectively oxidized to distinct fluorinated sulfur(VI) compounds under mild conditions. Slight modifications on the oxidation protocol permit the chemoselective installation of 1, 3, or 4 fluorine atoms at the S(VI) center, affording the corresponding Ar-SO2 F, Ar-SOF3 , and Ar-SF4 Cl. Of notice, this strategy enables the effective introduction of the rare and underexplored -SOF3 moiety into various (hetero)aryl groups. Reactivity studies demonstrate that such elusive Ar-SOF3 can be utilized as a linchpin for the synthesis of highly coveted aryl sulfonimidoyl fluorides (Ar-SO(NR)F).
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Affiliation(s)
- Lin Wang
- Max-Planck-Institut für KohlenforschungKaiser-Wilhelm-Platz 1Mülheim an der Ruhr45470Germany
| | - Josep Cornella
- Max-Planck-Institut für KohlenforschungKaiser-Wilhelm-Platz 1Mülheim an der Ruhr45470Germany
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16
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Bornemann D, Pitts CR, Wettstein L, Brüning F, Küng S, Guan L, Trapp N, Grützmacher H, Togni A. Desoxyfluorierung von Phosphanoxiden: Ein allgemeiner Weg zu fluorierten Organophosphor(V)‐Verbindungen und noch mehr. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010943] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Dustin Bornemann
- Departement Chemie und Angewandte Biowissenschaften ETH Zürich Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
| | - Cody Ross Pitts
- Departement Chemie und Angewandte Biowissenschaften ETH Zürich Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
- The Scripps Research Institute 10550 N. Torrey Pines Rd. La Jolla CA USA
| | - Lionel Wettstein
- Departement Chemie und Angewandte Biowissenschaften ETH Zürich Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
| | - Fabian Brüning
- Departement Chemie und Angewandte Biowissenschaften ETH Zürich Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
| | - Sebastian Küng
- Departement Chemie und Angewandte Biowissenschaften ETH Zürich Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
| | - Liangyu Guan
- Departement Chemie und Angewandte Biowissenschaften ETH Zürich Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
- The Scripps Research Institute 10550 N. Torrey Pines Rd. La Jolla CA USA
| | - Nils Trapp
- Departement Chemie und Angewandte Biowissenschaften ETH Zürich Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
| | - Hansjörg Grützmacher
- Departement Chemie und Angewandte Biowissenschaften ETH Zürich Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
| | - Antonio Togni
- Departement Chemie und Angewandte Biowissenschaften ETH Zürich Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
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17
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Bornemann D, Pitts CR, Wettstein L, Brüning F, Küng S, Guan L, Trapp N, Grützmacher H, Togni A. Deoxygenative Fluorination of Phosphine Oxides: A General Route to Fluorinated Organophosphorus(V) Compounds and Beyond. Angew Chem Int Ed Engl 2020; 59:22790-22795. [PMID: 32852879 DOI: 10.1002/anie.202010943] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Indexed: 01/23/2023]
Abstract
Fluorinated organophosphorus(V) compounds are a very versatile class of compounds, but the synthetic methods available to make them bear the disadvantages of 1) occasional handling of toxic or pyrophoric PIII starting materials and 2) a dependence on hazardous fluorinating reagents such as XeF2 . Herein, we present a simple solution and introduce a deoxygenative fluorination (DOF) approach that utilizes easy-to-handle phosphine oxides as starting materials and effectively replaces harsh fluorinating reagents by a combination of oxalyl chloride and potassium fluoride. The reaction has proven to be general, as R3 PF2 , R2 PF3 , and RPF4 compounds (as well as various cations and anions derived from these) are accessible in good yields and on up to a multi-gram scale. DFT calculations were used to bolster our observations. Notably, the discovery of this new method led to a convenient synthesis of 1) new difluorophosphonium ions, 2) hexafluorophosphate salts, and 3) fluorinated antimony- and arsenic- compounds.
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Affiliation(s)
- Dustin Bornemann
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
| | - Cody Ross Pitts
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland.,The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, CA, USA
| | - Lionel Wettstein
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
| | - Fabian Brüning
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
| | - Sebastian Küng
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
| | - Liangyu Guan
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland.,The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, CA, USA
| | - Nils Trapp
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
| | - Hansjörg Grützmacher
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
| | - Antonio Togni
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
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18
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Wang L, Cornella J. A Unified Strategy for Arylsulfur(VI) Fluorides from Aryl Halides: Access to Ar‐SOF
3
Compounds. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009699] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Lin Wang
- Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 Mülheim an der Ruhr 45470 Germany
| | - Josep Cornella
- Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 Mülheim an der Ruhr 45470 Germany
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19
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Neto JSS, Krüger R, Balaguez RA, Fronza MG, Acunha TV, Oliboni RS, Savegnago L, Iglesias BA, Alves D. Synthesis, photophysics and biomolecule interactive studies of new hybrid benzo-2,1,3-thiadiazoles. NEW J CHEM 2020. [DOI: 10.1039/c9nj05932f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
New hybrid molecules containing benzo-2,1,3-thiadiazole, benzofuran and arylselanyl moieties were synthesized and their photophysics and biomolecule interactive studies were performed.
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Affiliation(s)
- José S. S. Neto
- Laboratório de Síntese Orgânica Limpa
- Universidade Federal de Pelotas
- Pelotas
- Brazil
| | - Roberta Krüger
- Laboratório de Síntese Orgânica Limpa
- Universidade Federal de Pelotas
- Pelotas
- Brazil
| | - Renata A. Balaguez
- Laboratório de Síntese Orgânica Limpa
- Universidade Federal de Pelotas
- Pelotas
- Brazil
| | - Mariana G. Fronza
- Programa de Pós-Graduação em Biotecnologia (PPGB)
- Grupo de Pesquisa em Neurobiotecnologia – GPN
- Universidade Federal de Pelotas
- Pelotas
- Brazil
| | - Thiago V. Acunha
- Departament of Chemistry
- Laboratório de Bioinorgânica e Materiais Porfirínicos
- Universidade Federal de Santa Maria
- UFSM
- 97115-900 Santa Maria – RS
| | - Robson S. Oliboni
- Grupo de Catálise e Estudos Teóricos
- Universidade Federal de Pelotas
- Pelotas
- Brazil
| | - Lucielli Savegnago
- Programa de Pós-Graduação em Biotecnologia (PPGB)
- Grupo de Pesquisa em Neurobiotecnologia – GPN
- Universidade Federal de Pelotas
- Pelotas
- Brazil
| | - Bernardo A. Iglesias
- Departament of Chemistry
- Laboratório de Bioinorgânica e Materiais Porfirínicos
- Universidade Federal de Santa Maria
- UFSM
- 97115-900 Santa Maria – RS
| | - Diego Alves
- Laboratório de Síntese Orgânica Limpa
- Universidade Federal de Pelotas
- Pelotas
- Brazil
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20
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Brüning F, Pitts CR, Kalim J, Bornemann D, Ghiazza C, de Montmollin J, Trapp N, Billard T, Togni A. Difluoro(aryl)(perfluoroalkyl)-λ 4 -sulfanes and Selanes: Missing Links of Trichloroisocyanuric Acid/Potassium Fluoride Chemistry. Angew Chem Int Ed Engl 2019; 58:18937-18941. [PMID: 31596543 DOI: 10.1002/anie.201910594] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Indexed: 11/08/2022]
Abstract
The TCICA/KF approach to oxidative fluorination of heteroatoms has emerged as a surprisingly simple, safe, and versatile surrogate to classically challenging fluorination reactions. Although polyfluorination (or chlorofluorination) of diaryl disulfides, diaryl diselenides, diaryl ditellurides, aryl iodides, and aryl(perfluoroalkyl)tellanes has been described, the application of this TCICA/KF methodology to aryl(perfluoroalkyl)sulfanes and selanes remains an area of unexplored chemical space. Accordingly, to address the "missing links" in the developing series of chalcogen-based substrate reactivity, we report mild syntheses of metastable difluoro(aryl)(perfluoroalkyl)-λ4 -sulfanes and selanes. As only limited examples of these species exist in the current literature (accessible only by using F2 or XeF2 /HF), we have carried out detailed structural analyses, primarily using NMR and SC-XRD data. In addition, we investigate the effect of the perfluoroalkyl chain on the outcome of oxidative fluorination, and, finally, we provide preliminary evidence that difluoro(aryl)(trifluoro-methyl)-λ4 -sulfanes may act as fluorinating reagents.
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Affiliation(s)
- Fabian Brüning
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
| | - Cody Ross Pitts
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
| | - Jorna Kalim
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
| | - Dustin Bornemann
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
| | - Clément Ghiazza
- Institute of Chemistry and Biochemistry, Université de Lyon, Université Lyon 1, CNRS, 43 Bd du 11 Novembre 1918, 69622, Villeurbanne, France
| | - Jean de Montmollin
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
| | - Nils Trapp
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
| | - Thierry Billard
- Institute of Chemistry and Biochemistry, Université de Lyon, Université Lyon 1, CNRS, 43 Bd du 11 Novembre 1918, 69622, Villeurbanne, France
| | - Antonio Togni
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, 8093, Zürich, Switzerland
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21
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Brüning F, Pitts CR, Kalim J, Bornemann D, Ghiazza C, Montmollin J, Trapp N, Billard T, Togni A. Difluor(aryl)(perfluoralkyl)‐λ
4
‐Sulfane und Selane: Fehlende Bindeglieder der Trichlorisocyanursäure/Kaliumfluorid Chemie. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910594] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Fabian Brüning
- Department Chemie und Angewandte BiowissenschaftenEidgenössische Technische Hochschule Zürich (ETH) Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
| | - Cody Ross Pitts
- Department Chemie und Angewandte BiowissenschaftenEidgenössische Technische Hochschule Zürich (ETH) Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
| | - Jorna Kalim
- Department Chemie und Angewandte BiowissenschaftenEidgenössische Technische Hochschule Zürich (ETH) Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
| | - Dustin Bornemann
- Department Chemie und Angewandte BiowissenschaftenEidgenössische Technische Hochschule Zürich (ETH) Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
| | - Clément Ghiazza
- Institute of Chemistry and BiochemistryUniversité de Lyon, Université Lyon 1CNRS 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
| | - Jean Montmollin
- Department Chemie und Angewandte BiowissenschaftenEidgenössische Technische Hochschule Zürich (ETH) Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
| | - Nils Trapp
- Department Chemie und Angewandte BiowissenschaftenEidgenössische Technische Hochschule Zürich (ETH) Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
| | - Thierry Billard
- Institute of Chemistry and BiochemistryUniversité de Lyon, Université Lyon 1CNRS 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
| | - Antonio Togni
- Department Chemie und Angewandte BiowissenschaftenEidgenössische Technische Hochschule Zürich (ETH) Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
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