1
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Acosta CM, Belov DS, Lamur AH, Brantley CL, Solans-Monfort X, Rue KL, Christou G, Bukhryakov KV. Mononuclear Four-Coordinate Bis-Fluoride Bis-NHC Complexes of Chromium(II), Iron(II), and Cobalt(II). Inorg Chem 2023; 62:18108-18115. [PMID: 37876243 DOI: 10.1021/acs.inorgchem.3c02442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
The reaction between silylamido complexes of Cr(II), Fe(II), and Co(II) and IMes·2HF salt in the presence of IMes (IMes = 1,3-dimesitylimidazol-2-ylidene) led to isolation of Cr(IMes)2F2 (2-Cr), Fe(IMes)2F2 (2-Fe), and Co(IMes)2F2 (2-Co). X-ray structural studies revealed that 2-Cr adopts square planar geometry, while 2-Fe and 2-Co have distorted tetrahedral geometry. Magnetic susceptibility studies of 2-Cr, 2-Fe, and 2-Co were consistent with high-spin complexes, S = 2 for 2-Cr/2-Fe and S = 3/2 for 2-Co. We demonstrated that fluoride can be successfully exchanged for cyanide and azide using trimethylsilyl cyanide and trimethylsilyl azide (3-Fe and 4-Fe). DFT studies suggest that the preference of 2-Cr to adopt square planar geometry over tetrahedral is due to its d4 metal center, where four electrons fill the lower-lying d-orbitals.
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Affiliation(s)
- Carlos M Acosta
- Department of Chemistry and Biochemistry, Florida International University, Miami, Florida 33199, United States
| | - Dmitry S Belov
- Department of Chemistry and Biochemistry, Florida International University, Miami, Florida 33199, United States
| | - Andy H Lamur
- Department of Chemistry and Biochemistry, Florida International University, Miami, Florida 33199, United States
| | - ChristiAnna L Brantley
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | | | - Kelly L Rue
- Department of Chemistry and Biochemistry, Florida International University, Miami, Florida 33199, United States
| | - George Christou
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Konstantin V Bukhryakov
- Department of Chemistry and Biochemistry, Florida International University, Miami, Florida 33199, United States
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2
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Li M, Wang Y, Tsui GC. Palladium-Catalyzed Stereoselective C-F Bond Vinylation and Allylation of Tetrasubstituted gem-Difluoroalkenes via Stille Coupling: Synthesis of Monofluorinated 1,3- and 1,4-Dienes. Org Lett 2021; 23:8072-8076. [PMID: 34585935 DOI: 10.1021/acs.orglett.1c03096] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We herein describe a Pd-catalyzed stereoselective C-F bond vinylation and allylation reaction of tetrasubstituted gem-difluoroalkenes for the synthesis of valuable monofluorinated 1,3- and 1,4-dienes with excellent diastereoselectivities. Different from previously used Pd(PPh3)4, a catalytic system involving Pd(0) and dppe as the ligand was developed for Stille-type cross-coupling between gem-difluoroalkenes and vinyl- and allyltin reagents.
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Affiliation(s)
- Min Li
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR 999077, China
| | - Yanhui Wang
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR 999077, China
| | - Gavin Chit Tsui
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR 999077, China
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3
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Pang Y, Leutzsch M, Nöthling N, Katzenburg F, Cornella J. Catalytic Hydrodefluorination via Oxidative Addition, Ligand Metathesis, and Reductive Elimination at Bi(I)/Bi(III) Centers. J Am Chem Soc 2021; 143:12487-12493. [PMID: 34358426 PMCID: PMC8377712 DOI: 10.1021/jacs.1c06735] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Herein, we report a hydrodefluorination reaction of polyfluoroarenes catalyzed by bismuthinidenes, Phebox-Bi(I) and OMe-Phebox-Bi(I). Mechanistic studies on the elementary steps support a Bi(I)/Bi(III) redox cycle that comprises C(sp2)-F oxidative addition, F/H ligand metathesis, and C(sp2)-H reductive elimination. Isolation and characterization of a cationic Phebox-Bi(III)(4-tetrafluoropyridyl) triflate manifests the feasible oxidative addition of Phebox-Bi(I) into the C(sp2)-F bond. Spectroscopic evidence was provided for the formation of a transient Phebox-Bi(III)(4-tetrafluoropyridyl) hydride during catalysis, which decomposes at low temperature to afford the corresponding C(sp2)-H bond while regenerating the propagating Phebox-Bi(I). This protocol represents a distinct catalytic example where a main-group center performs three elementary organometallic steps in a low-valent redox manifold.
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Affiliation(s)
- Yue Pang
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr 45470, Germany
| | - Markus Leutzsch
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr 45470, Germany
| | - Nils Nöthling
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr 45470, Germany
| | - Felix Katzenburg
- 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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4
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Müller V, Ghorai D, Capdevila L, Messinis AM, Ribas X, Ackermann L. C-F Activation for C(sp 2)-C(sp 3) Cross-Coupling by a Secondary Phosphine Oxide (SPO)-Nickel Complex. Org Lett 2020; 22:7034-7040. [PMID: 32816494 DOI: 10.1021/acs.orglett.0c02609] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A secondary phosphine oxide (SPO)-nickel catalyst allowed the activation of otherwise inert C-F bonds of unactivated arenes in terms of challenging couplings with primary and secondary alkyl Grignard reagents. The C-F activation is characterized by mild reaction conditions and high levels of branched selectivity. Electron-rich and electron-deficient arenes were suitable electrophiles for this transformation. In addition, this strategy also proved suitable to heterocycles and for the activation of C-O bonds under slightly modified conditions.
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Affiliation(s)
- Valentin Müller
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| | - Debasish Ghorai
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| | - Lorena Capdevila
- Institut de Quı́mica Computacional i Catàlisi (IQCC) and Dep. Quı́mica, Universitat de Girona, Campus de Montilivi, E-17003 Girona, Catalonia, Spain
| | - Antonis M Messinis
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| | - Xavi Ribas
- Institut de Quı́mica Computacional i Catàlisi (IQCC) and Dep. Quı́mica, Universitat de Girona, Campus de Montilivi, E-17003 Girona, Catalonia, Spain
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany.,Wöhler Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
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5
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Ma Q, Liu C, Tsui GC. Palladium-Catalyzed Stereoselective Hydrodefluorination of Tetrasubstituted gem-Difluoroalkenes. Org Lett 2020; 22:5193-5197. [PMID: 32610923 DOI: 10.1021/acs.orglett.0c01813] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A highly stereoselective palladium(0)-catalyzed hydrodefluorination (HDF) of tetrasubstituted gem-difluoroalkenes is developed. By using catalytic Pd(PPh3)4 (2.5-5 mol %) and hydrosilane Me2PhSiH, various trisubstituted terminal (E)-monofluoroalkenes can be synthesized with excellent E/Z selectivity (>99:1) and good functional group tolerability. The key stereocontrol should be exerted by an ester-directed C-F bond oxidative addition step in the catalytic cycle.
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Affiliation(s)
- Qiao Ma
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR
| | - Caroline Liu
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR
| | - Gavin Chit Tsui
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR
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6
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Tomar P, Braun T, Kemnitz E. Preparation of NHC Stabilized Al(III)fluorides: Fluorination of [(SIMes)AlMe
3
] with SF
4
or Me
3
SnF. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900921] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Pooja Tomar
- Department of Chemistry Humboldt‐Universität zu Berlin Brook‐Taylor‐Str. 2 12489 Berlin Germany
| | - Thomas Braun
- Department of Chemistry Humboldt‐Universität zu Berlin Brook‐Taylor‐Str. 2 12489 Berlin Germany
| | - Erhard Kemnitz
- Department of Chemistry Humboldt‐Universität zu Berlin Brook‐Taylor‐Str. 2 12489 Berlin Germany
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7
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Xu C, Talavera M, Sander S, Braun T. C-H and C-F bond activation reactions of pentafluorostyrene at rhodium complexes. Dalton Trans 2019; 48:16258-16267. [PMID: 31617524 DOI: 10.1039/c9dt03371h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The rhodium(i) complexes [Rh(Bpin)(PEt3)3] (1), [Rh(H)(PEt3)3] (5) and [Rh(Me)(PEt3)3] (14) were employed in reactions with pentafluorostyrene affording coordination of the olefin and C-F or C-H bond activation. Control of the reaction conditions allowed for selective activation reactions at different positions at the fluorinated aromatic ring. The rhodacycle trans-[Rh(F)(CH2CH2(2-C6F4))(PEt3)2] (7) was identified as an intermediate for an activation at the 2-position. Reactivity studies of the latter with CO led to the generation of trans-[Rh(F)(CH2CH2C6F4)(CO)(PEt3)2] (10). Stoichiometric and catalytic hydroboration reactions were achieved using complexes 1 or 5 as catalysts.
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Affiliation(s)
- Conghui Xu
- Humboldt-Universität zu Berlin, Department of Chemistry, Brook-Taylor-Straße 2, 12489 Berlin, Germany.
| | - Maria Talavera
- Humboldt-Universität zu Berlin, Department of Chemistry, Brook-Taylor-Straße 2, 12489 Berlin, Germany.
| | - Stefan Sander
- Humboldt-Universität zu Berlin, Department of Chemistry, Brook-Taylor-Straße 2, 12489 Berlin, Germany.
| | - Thomas Braun
- Humboldt-Universität zu Berlin, Department of Chemistry, Brook-Taylor-Straße 2, 12489 Berlin, Germany.
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8
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Torres Ò, Pfister N, Braun T, Wittwer P. C-F activation of perfluorophenazine at nickel: selectivity and mechanistic investigations. Dalton Trans 2019; 48:6153-6161. [PMID: 30916690 DOI: 10.1039/c9dt00780f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The reactivity of [Ni(cod)2] towards perfluorophenazine in the presence of phosphines is reported. When PiPr3 and PCy3 are used, an initial κ-(N) coordination of the nickel centre to the nitrogen atom of the perfluorophenazine ring occurs, forming the dark blue complexes [Ni{κ-(N)-C12N2F8}(PiPr3)2] (1) and [Ni{κ-(N)-C12N2F8}(PCy3)2] (2). Complex 1 was structurally characterized by X-ray diffraction analysis. The complexes rearranged by regioselective C-F activation of the perfluorophenazine ring in the 2-position to yield complexes trans-[NiF(2-C12N2F7)(PiPr3)2] (5) and trans-[NiF(2-C12N2F7)(PCy3)2] (6). The structure of 6 was also determined by X-ray diffraction analysis. Kinetic measurements for the decrease of 1 at different temperatures reveal a first order reaction with ΔH‡ = 19 ± 7 kcal mol-1. Initially, small amounts of an intermediate, assigned as [Ni(η2-1,2-C12N2F8)(PiPr3)2] (3), were observed, which exhibits a 1,2-η2 coordination of the perfluorophenazine. DFT calculations on the same transformation were also computed, which suggest that both a phosphine-assisted mechanism and an oxidative addition can be operating reaction pathways. The 1,2-η2 complex [Ni(η2-1,2-C12N2F8)(PEt3)2] (4) was obtained when PEt3 was used as ligand, and an unstable dark red complex trans-[NiF(2-C12N2F7)(PEt3)2] (7) formed rapidly by C-F activation. The reactivity of the perfluorophenazine was compared with those of perfluorodibenzo-p-dioxin. In this case, no prior coordination was observed and the C-F activation took place in a less selective manner forming trans-[NiF(1-C12O2F7)(PiPr3)2] (8) and trans-[NiF(2-C12O2F7)(PiPr3)2] (9), outlining the role of the nitrogen for the selectivity of the process. Treatment of two equivalents of [Ni(cod)2] and four equivalents of PiPr3 with perfluorophenazine afforded a double C-F activation to give [{trans-(PiPr3)2NiF}2(2,7-C12N2F6)] (10).
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Affiliation(s)
- Òscar Torres
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany.
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9
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Cao D, Pan P, Zeng H, Li CJ. Umpolung cross-coupling of polyfluoroarenes with hydrazones via activation of C–F bonds. Chem Commun (Camb) 2019; 55:9323-9326. [DOI: 10.1039/c9cc04299g] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
An umpolung strategy for the cross-coupling of polyfluoroarenes with various substituted hydrazones to construct C(sp2)–C(sp3) bonds is developed.
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Affiliation(s)
- Dawei Cao
- The State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- P. R. China
| | - Pan Pan
- The State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- P. R. China
| | - Huiying Zeng
- The State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- P. R. China
| | - Chao-Jun Li
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis
- McGill University
- Montreal
- Canada
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10
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Ho YA, Leiendecker M, Liu X, Wang C, Alandini N, Rueping M. Nickel-Catalyzed Csp 2-Csp 3 Bond Formation via C-F Bond Activation. Org Lett 2018; 20:5644-5647. [PMID: 30168331 DOI: 10.1021/acs.orglett.8b02351] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A nickel-catalyzed cross coupling of aryl fluorides via C-F bond activation has been developed. The alkylation method allows selective replacement of aryl fluorides by alkyl groups and enables the synthesis of diverse and otherwise difficult to access scaffolds in good yields.
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Affiliation(s)
- Yee Ann Ho
- Institute of Organic Chemistry , RWTH Aachen University , Landoltweg 1 , D-52074 Aachen , Germany
| | - Matthias Leiendecker
- Institute of Organic Chemistry , RWTH Aachen University , Landoltweg 1 , D-52074 Aachen , Germany
| | - Xiangqian Liu
- Institute of Organic Chemistry , RWTH Aachen University , Landoltweg 1 , D-52074 Aachen , Germany
| | - Chengming Wang
- Institute of Organic Chemistry , RWTH Aachen University , Landoltweg 1 , D-52074 Aachen , Germany
| | - Nurtalya Alandini
- Institute of Organic Chemistry , RWTH Aachen University , Landoltweg 1 , D-52074 Aachen , Germany
| | - Magnus Rueping
- Institute of Organic Chemistry , RWTH Aachen University , Landoltweg 1 , D-52074 Aachen , Germany.,KAUST Catalysis Center , King Abdullah University of Science and Technology (KAUST) , Thuwal 23955-6900 , Saudi Arabia
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11
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Matsunami A, Kayaki Y, Kuwata S, Ikariya T. Nucleophilic Aromatic Substitution in Hydrodefluorination Exemplified by Hydridoiridium(III) Complexes with Fluorinated Phenylsulfonyl-1,2-diphenylethylenediamine Ligands. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00242] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Asuka Matsunami
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, O-okayama 2-12-1-E4-1, Meguro-ku, Tokyo 152-8552, Japan
| | - Yoshihito Kayaki
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, O-okayama 2-12-1-E4-1, Meguro-ku, Tokyo 152-8552, Japan
| | - Shigeki Kuwata
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, O-okayama 2-12-1-E4-1, Meguro-ku, Tokyo 152-8552, Japan
- PRESTO, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Takao Ikariya
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, O-okayama 2-12-1-E4-1, Meguro-ku, Tokyo 152-8552, Japan
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12
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Ellwanger MA, von Randow C, Steinhauer S, Zhou Y, Wiesner A, Beckers H, Braun T, Riedel S. Tuning the Lewis acidity of difluorido gold(iii) complexes: the synthesis of [AuClF2(SIMes)] and [AuF2(OTeF5)(SIMes)]. Chem Commun (Camb) 2018; 54:9301-9304. [DOI: 10.1039/c8cc05233f] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A route to [AuIIIClF2(SIMes)] and [AuIIIF2(OTeF5)(SIMes)] including structural characterization to tune the ligand arrangement and Lewis acidity of gold(iii) centres was developed.
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Affiliation(s)
- Mathias A. Ellwanger
- Institut für Chemie und Biochemie – Anorganische Chemie
- Freie Universität Berlin
- 14195 Berlin
- Germany
| | - Clara von Randow
- Institut für Chemie und Biochemie – Anorganische Chemie
- Freie Universität Berlin
- 14195 Berlin
- Germany
| | - Simon Steinhauer
- Institut für Chemie und Biochemie – Anorganische Chemie
- Freie Universität Berlin
- 14195 Berlin
- Germany
| | - Yunfei Zhou
- Institut für Chemie und Biochemie – Anorganische Chemie
- Freie Universität Berlin
- 14195 Berlin
- Germany
| | - Anja Wiesner
- Institut für Chemie und Biochemie – Anorganische Chemie
- Freie Universität Berlin
- 14195 Berlin
- Germany
| | - Helmut Beckers
- Institut für Chemie und Biochemie – Anorganische Chemie
- Freie Universität Berlin
- 14195 Berlin
- Germany
| | - Thomas Braun
- Institut für Chemie
- Humboldt-Universität zu Berlin
- 12489 Berlin
- Germany
| | - Sebastian Riedel
- Institut für Chemie und Biochemie – Anorganische Chemie
- Freie Universität Berlin
- 14195 Berlin
- Germany
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13
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Kikushima K, Grellier M, Ohashi M, Ogoshi S. Transition-Metal-Free Catalytic Hydrodefluorination of Polyfluoroarenes by Concerted Nucleophilic Aromatic Substitution with a Hydrosilicate. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708003] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Kotaro Kikushima
- Department of Applied Chemistry; Faculty of Engineering; Osaka University; Suita Osaka 565-0871 Japan
- Daikin Research Alliance Laboratories; Faculty of Engineering; Osaka University; Suita Osaka 565-0871 Japan
| | - Mary Grellier
- Laboratoire de Chimie de Coordination (LCC); CNRS; 205 route de Narbonne 31077 Toulouse Cedex 4 France
- Université de Toulouse; UPS, INPT; 31077 Toulouse Cedex 4 France
| | - Masato Ohashi
- Department of Applied Chemistry; Faculty of Engineering; Osaka University; Suita Osaka 565-0871 Japan
| | - Sensuke Ogoshi
- Department of Applied Chemistry; Faculty of Engineering; Osaka University; Suita Osaka 565-0871 Japan
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14
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Kikushima K, Grellier M, Ohashi M, Ogoshi S. Transition-Metal-Free Catalytic Hydrodefluorination of Polyfluoroarenes by Concerted Nucleophilic Aromatic Substitution with a Hydrosilicate. Angew Chem Int Ed Engl 2017; 56:16191-16196. [PMID: 29072350 DOI: 10.1002/anie.201708003] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Indexed: 12/14/2022]
Abstract
A transition-metal-free catalytic hydrodefluorination (HDF) reaction of polyfluoroarenes is described. The reaction involves direct hydride transfer from a hydrosilicate as the key intermediate, which is generated from a hydrosilane and a fluoride salt. The eliminated fluoride regenerates the hydrosilicate to complete the catalytic cycle. Dispersion-corrected DFT calculations indicated that the HDF reaction proceeds through a concerted nucleophilic aromatic substitution (CSN Ar) process.
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Affiliation(s)
- Kotaro Kikushima
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan.,Daikin Research Alliance Laboratories, Faculty of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Mary Grellier
- Laboratoire de Chimie de Coordination (LCC), CNRS, 205 route de Narbonne, 31077, Toulouse Cedex 4, France.,Université de Toulouse, UPS, INPT, 31077, Toulouse Cedex 4, France
| | - Masato Ohashi
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Sensuke Ogoshi
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan
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15
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Chen W, Hooper TN, Ng J, White AJP, Crimmin MR. Palladium‐Catalyzed Carbon–Fluorine and Carbon–Hydrogen Bond Alumination of Fluoroarenes and Heteroarenes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201706378] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Wenyi Chen
- Department of Chemistry Imperial College London South Kensington London SW7 2AZ UK
| | - Thomas N. Hooper
- Department of Chemistry Imperial College London South Kensington London SW7 2AZ UK
| | - Jamues Ng
- Department of Chemistry Imperial College London South Kensington London SW7 2AZ UK
| | - Andrew J. P. White
- Department of Chemistry Imperial College London South Kensington London SW7 2AZ UK
| | - Mark R. Crimmin
- Department of Chemistry Imperial College London South Kensington London SW7 2AZ UK
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16
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Chen W, Hooper TN, Ng J, White AJP, Crimmin MR. Palladium‐Catalyzed Carbon–Fluorine and Carbon–Hydrogen Bond Alumination of Fluoroarenes and Heteroarenes. Angew Chem Int Ed Engl 2017; 56:12687-12691. [DOI: 10.1002/anie.201706378] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 07/31/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Wenyi Chen
- Department of Chemistry Imperial College London South Kensington London SW7 2AZ UK
| | - Thomas N. Hooper
- Department of Chemistry Imperial College London South Kensington London SW7 2AZ UK
| | - Jamues Ng
- Department of Chemistry Imperial College London South Kensington London SW7 2AZ UK
| | - Andrew J. P. White
- Department of Chemistry Imperial College London South Kensington London SW7 2AZ UK
| | - Mark R. Crimmin
- Department of Chemistry Imperial College London South Kensington London SW7 2AZ UK
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17
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Kohlmann J, Braun T, Laubenstein R, Herrmann R. Suzuki-Miyaura Cross-Coupling Reactions of Highly Fluorinated Arylboronic Esters: Catalytic Studies and Stoichiometric Model Reactions on the Transmetallation Step. Chemistry 2017; 23:12218-12232. [DOI: 10.1002/chem.201700549] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Indexed: 12/23/2022]
Affiliation(s)
- Johannes Kohlmann
- Department of Chemistry; Humboldt-Universität zu Berlin; Brook-Taylor-Straße 2 12489 Berlin Germany
| | - Thomas Braun
- Department of Chemistry; Humboldt-Universität zu Berlin; Brook-Taylor-Straße 2 12489 Berlin Germany
| | - Reik Laubenstein
- Department of Chemistry; Humboldt-Universität zu Berlin; Brook-Taylor-Straße 2 12489 Berlin Germany
| | - Roy Herrmann
- Department of Chemistry; Humboldt-Universität zu Berlin; Brook-Taylor-Straße 2 12489 Berlin Germany
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18
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Zheng T, Li J, Zhang S, Xue B, Sun H, Li X, Fuhr O, Fenske D. Selective C–F and C–H Activation of Fluoroarenes by Fe(PMe3)4 and Catalytic Performance of Iron Hydride in Hydrosilylation of Carbonyl Compounds. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00546] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Tingting Zheng
- School
of Chemistry and Chemical Engineering, Key Laboratory of Special Functional
Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, 250199 Jinan, People’s Republic of China
- Department
of Chemistry, Capital Normal University, 100037 Beijing, People’s Republic of China
| | - Junye Li
- School
of Chemistry and Chemical Engineering, Key Laboratory of Special Functional
Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, 250199 Jinan, People’s Republic of China
- Department
of Pharmaceutical Engineering, Heze University, DaXue Road, 274015 Heze, People’s Republic of China
| | - Shumiao Zhang
- School
of Chemistry and Chemical Engineering, Key Laboratory of Special Functional
Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, 250199 Jinan, People’s Republic of China
- School
of Chemistry and Chemical Engineering, Qufu Normal University, 273165 Qufu, People’s Republic of China
| | - Benjing Xue
- School
of Chemistry and Chemical Engineering, Key Laboratory of Special Functional
Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, 250199 Jinan, People’s Republic of China
| | - Hongjian Sun
- School
of Chemistry and Chemical Engineering, Key Laboratory of Special Functional
Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, 250199 Jinan, People’s Republic of China
| | - Xiaoyan Li
- School
of Chemistry and Chemical Engineering, Key Laboratory of Special Functional
Aggregated Materials, Ministry of Education, Shandong University, Shanda Nanlu 27, 250199 Jinan, People’s Republic of China
| | - Olaf Fuhr
- Institut
für Nanotechnologie (INT) und Karlsruher Nano-Micro-Facility
(KNMF), Karlsruher Institut für Technologie (KIT), Hermann-von-Helmholtz-Platz
1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Dieter Fenske
- Institut
für Nanotechnologie (INT) und Karlsruher Nano-Micro-Facility
(KNMF), Karlsruher Institut für Technologie (KIT), Hermann-von-Helmholtz-Platz
1, 76344 Eggenstein-Leopoldshafen, Germany
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19
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Zhou J, Berthel JHJ, Kuntze-Fechner MW, Friedrich A, Marder TB, Radius U. NHC Nickel-Catalyzed Suzuki–Miyaura Cross-Coupling Reactions of Aryl Boronate Esters with Perfluorobenzenes. J Org Chem 2016; 81:5789-94. [DOI: 10.1021/acs.joc.6b01041] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jing Zhou
- Institut
für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Johannes H. J. Berthel
- Institut
für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | | | - Alexandra Friedrich
- Institut
für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Todd B. Marder
- Institut
für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Udo Radius
- Institut
für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
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20
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Hu JY, Zhang J, Wang GX, Sun HL, Zhang JL. Constructing a Catalytic Cycle for C-F to C-X (X = O, S, N) Bond Transformation Based on Gold-Mediated Ligand Nucleophilic Attack. Inorg Chem 2016; 55:2274-83. [PMID: 26872251 DOI: 10.1021/acs.inorgchem.5b02634] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A tricoordinated gold(I) chloride complex, tBuXantphosAuCl, supported by a sterically bulky 9,9-dimethyl-4,5-bis(di-tert-butylphosphino)xanthene ligand (tBuXantphos) was synthesized. This complex features a remarkably longer Au-Cl bond length [2.632(1) Å] than bicoordinated linear gold complexes (2.27-2.30 Å) and tricoordinated XantphosAuCl [2.462(1) Å]. Single-crystal X-ray diffraction analysis of a cocrystal of tBuXantphosAuCl and pentafluoronitrobenzene (PFNB) and UV-vis spectroscopic titration experiments revealed the existence of an anion-π interaction between the Cl anion ligand and PFNB. Stoichiometric reaction between PFNB and tBuXantphosAuOtBu, after replacement of Cl by a more nucleophilic tBuO anion ligand, showed higher reactivity and para selectivity in the transformation of C-F to C-OtBu bond, distinctively different from that when only KOtBu was used (ortho selectivity) under the identical condition. Mechanistic studies including density functional theory calculations suggested a gold-mediated nucleophilic ligand attack of the C-F bond pathway via an SNAr process. On the basis of these results, using trimethylsilyl derivatives TMS-X (X = OMe, SEt, NEt2) as the nucleophilic ligand source and the fluorine acceptor, catalytic transformation of the C-F bond of aromatic substrates to the C-X (X = O, S, N) bond was achieved with tBuXantphosAuCl as the catalyst (up to 20 turnover numbers).
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Affiliation(s)
- Ji-Yun Hu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, P. R. China
| | - Jing Zhang
- College of Materials Science and Optoelectronics Technology, Graduate University of Chinese Academy of Sciences , Beijing 100049, P. R. China
| | - Gao-Xiang Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, P. R. China
| | - Hao-Ling Sun
- Department of Chemistry and Beijing Key Laboratory of Energy Conversion and Storage Materials, Beijing Normal University , Beijing 100875, P. R. China
| | - Jun-Long Zhang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, P. R. China
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21
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Gadsby JM, McPake CB, Murray CB, Sandford G. Synthesis of polyfluorinated terphenyl and styrene derivatives by palladium catalysed CF bond activation of polyfluoronitroaromatic substrates. J Fluor Chem 2016. [DOI: 10.1016/j.jfluchem.2015.10.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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22
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Ahrens T, Ahrens M, Braun T, Braun B, Herrmann R. Synthesis of a rhodium(i) germyl complex: a useful tool for C–H and C–F bond activation reactions. Dalton Trans 2016; 45:4716-28. [DOI: 10.1039/c5dt04845a] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The rhodium(i) germyl complex [Rh(GePh3)(PEt3)3] is a useful tool for C–F and C–H bond activation reactions. For instance, treatment with hexafluoropropene results in the formation of two isomeric C–F activation products [Rh{(E)-CFCF(CF3)}(PEt3)3] and [Rh{(Z)-CFCF(CF3)}(PEt3)3] in a 3 : 1 ratio.
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Affiliation(s)
- Theresia Ahrens
- Humboldt-Universität zu Berlin
- Department of Chemistry
- D-12489 Berlin
- Germany
| | - Mike Ahrens
- Humboldt-Universität zu Berlin
- Department of Chemistry
- D-12489 Berlin
- Germany
| | - Thomas Braun
- Humboldt-Universität zu Berlin
- Department of Chemistry
- D-12489 Berlin
- Germany
| | - Beatrice Braun
- Humboldt-Universität zu Berlin
- Department of Chemistry
- D-12489 Berlin
- Germany
| | - Roy Herrmann
- Humboldt-Universität zu Berlin
- Department of Chemistry
- D-12489 Berlin
- Germany
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23
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Li L, Miao H, Ding Y. Iridium and phosphine promoted C–F bond activation: the C–S cross-coupling of aryl fluorides with diaryl disulfides to synthesize thioethers. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.09.133] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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24
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Zámostná L, Braun T. Catalytic Degradation of Sulfur Hexafluoride by Rhodium Complexes. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505462] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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25
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Zámostná L, Braun T. Catalytic Degradation of Sulfur Hexafluoride by Rhodium Complexes. Angew Chem Int Ed Engl 2015; 54:10652-6. [DOI: 10.1002/anie.201505462] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2015] [Indexed: 11/10/2022]
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26
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Kalläne SI, Teltewskoi M, Braun T, Braun B. C–H and C–F Bond Activations at a Rhodium(I) Boryl Complex: Reaction Steps for the Catalytic Borylation of Fluorinated Aromatics. Organometallics 2015. [DOI: 10.1021/om500952x] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Sabrina I. Kalläne
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany
| | - Michael Teltewskoi
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany
| | - Thomas Braun
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany
| | - Beatrice Braun
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany
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27
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28
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Fujita T, Arita T, Ichitsuka T, Ichikawa J. Catalytic defluorinative [3 + 2] cycloaddition of trifluoromethylalkenes with alkynes via reduction of nickel(ii) fluoride species. Dalton Trans 2015; 44:19460-3. [DOI: 10.1039/c5dt02160j] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A catalytic synthesis of 2-fluoro-1,3-cyclopentadienes was achieved via [3 + 2] cycloaddition of 2-trifluoromethyl-1-alkenes and alkynes using a nickel catalyst and a diboron-based ternary additive system.
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Affiliation(s)
- Takeshi Fujita
- Division of Chemistry
- Pure and Applied Sciences
- University of Tsukuba
- Tsukuba
- Japan
| | - Tomohiro Arita
- Division of Chemistry
- Pure and Applied Sciences
- University of Tsukuba
- Tsukuba
- Japan
| | - Tomohiro Ichitsuka
- Division of Chemistry
- Pure and Applied Sciences
- University of Tsukuba
- Tsukuba
- Japan
| | - Junji Ichikawa
- Division of Chemistry
- Pure and Applied Sciences
- University of Tsukuba
- Tsukuba
- Japan
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29
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Ahrens T, Kohlmann J, Ahrens M, Braun T. Functionalization of fluorinated molecules by transition-metal-mediated C-F bond activation to access fluorinated building blocks. Chem Rev 2014; 115:931-72. [PMID: 25347593 DOI: 10.1021/cr500257c] [Citation(s) in RCA: 610] [Impact Index Per Article: 61.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Theresia Ahrens
- Humboldt-Universität zu Berlin , Department of Chemistry, Brook-Taylor-Straße 2, 12489 Berlin, Germany
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30
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31
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Sun AD, Leung K, Restivo AD, LaBerge NA, Takasaki H, Love JA. Nickel-Catalyzed Csp2Csp3Bond Formation by CarbonFluorine Activation. Chemistry 2014; 20:3162-8. [DOI: 10.1002/chem.201303809] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Indexed: 11/07/2022]
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32
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Albéniz AC, Casares JA. Palladium-Mediated Organofluorine Chemistry. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2014. [DOI: 10.1016/b978-0-12-800976-5.00001-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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33
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Raza AL, Panetier JA, Teltewskoi M, Macgregor SA, Braun T. Rhodium(I) Silyl Complexes for C–F Bond Activation Reactions of Aromatic Compounds: Experimental and Computational Studies. Organometallics 2013. [DOI: 10.1021/om400150p] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Anna Lena Raza
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489 Berlin, Germany
| | - Julien A. Panetier
- Institute of Chemical Sciences, School of Engineering
and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
| | - Michael Teltewskoi
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489 Berlin, Germany
| | - Stuart A. Macgregor
- Institute of Chemical Sciences, School of Engineering
and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
| | - Thomas Braun
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489 Berlin, Germany
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34
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Chen Z, He CY, Yin Z, Chen L, He Y, Zhang X. Palladium-CatalyzedOrtho-Selective CF Activation of Polyfluoroarenes with Triethylsilane: A Facile Access to Partially Fluorinated Aromatics. Angew Chem Int Ed Engl 2013; 52:5813-7. [DOI: 10.1002/anie.201300400] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Revised: 02/27/2013] [Indexed: 11/08/2022]
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35
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Chen Z, He CY, Yin Z, Chen L, He Y, Zhang X. Palladium-CatalyzedOrtho-Selective CF Activation of Polyfluoroarenes with Triethylsilane: A Facile Access to Partially Fluorinated Aromatics. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201300400] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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36
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Yu D, Lu L, Shen Q. Palladium-Catalyzed Coupling of Polyfluorinated Arenes with Heteroarenes via C–F/C–H Activation. Org Lett 2013; 15:940-3. [DOI: 10.1021/ol303567t] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Daohong Yu
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People’s Republic of China
| | - Long Lu
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People’s Republic of China
| | - Qilong Shen
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People’s Republic of China
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37
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Kuehnel MF, Lentz D, Braun T. Synthesis of Fluorinated Building Blocks by Transition-Metal-Mediated Hydrodefluorination Reactions. Angew Chem Int Ed Engl 2013; 52:3328-48. [DOI: 10.1002/anie.201205260] [Citation(s) in RCA: 313] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2012] [Indexed: 11/06/2022]
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38
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Kuehnel MF, Lentz D, Braun T. Synthese fluorierter Bausteine durch Übergangsmetall-vermittelte Hydrodefluorierungsreaktionen. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201205260] [Citation(s) in RCA: 117] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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39
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Cargill MR, Sandford G, Kilickiran P, Nelles G. Pd-catalyzed sp2–sp cross-coupling reactions involving C–F bond activation in highly fluorinated nitrobenzene systems. Tetrahedron 2013. [DOI: 10.1016/j.tet.2012.11.031] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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40
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Li J, Zheng T, Sun H, Li X. Selectively catalytic hydrodefluorination of perfluoroarenes by Co(PMe3)4 with sodium formate as reducing agent and mechanism study. Dalton Trans 2013; 42:13048-53. [DOI: 10.1039/c3dt50409c] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Li J, Zheng T, Sun H, Xu W, Li X. Selective C–F/C–H bond activation of fluoroarenes by cobalt complex supported with phosphine ligands. Dalton Trans 2013; 42:5740-8. [DOI: 10.1039/c3dt33074e] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Breyer D, Berger J, Braun T, Mebs S. Nickel fluoro complexes as intermediates in catalytic cross-coupling reactions. J Fluor Chem 2012. [DOI: 10.1016/j.jfluchem.2012.06.025] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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43
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Kuehnel MF, Holstein P, Kliche M, Krüger J, Matthies S, Nitsch D, Schutt J, Sparenberg M, Lentz D. Titanium-Catalyzed Vinylic and Allylic CF Bond Activation-Scope, Limitations and Mechanistic Insight. Chemistry 2012; 18:10701-14. [DOI: 10.1002/chem.201201125] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2012] [Indexed: 11/09/2022]
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44
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Yu D, Shen Q, Lu L. Selective Palladium-Catalyzed C–F Activation/Carbon–Carbon Bond Formation of Polyfluoroaryl Oxazolines. J Org Chem 2012; 77:1798-804. [DOI: 10.1021/jo2023262] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Daohong Yu
- Key Laboratory of Organofluorine
Chfigemistry, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People’s Republic of
China
| | - Qilong Shen
- Key Laboratory of Organofluorine
Chfigemistry, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People’s Republic of
China
| | - Long Lu
- Key Laboratory of Organofluorine
Chfigemistry, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, People’s Republic of
China
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45
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Aboulkacem S, Naumann D, Tyrra W, Pantenburg I. 4-Tetrafluoropyridyl Silver(I), AgC5F4N, in Redox Transmetalations with Selenium and Tellurium. Organometallics 2012. [DOI: 10.1021/om201195j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Said Aboulkacem
- Institut für Anorganische Chemie, Department
für Chemie, Universität zu Köln, Greinstr. 6, D-50939 Köln, Germany
| | - Dieter Naumann
- Institut für Anorganische Chemie, Department
für Chemie, Universität zu Köln, Greinstr. 6, D-50939 Köln, Germany
| | - Wieland Tyrra
- Institut für Anorganische Chemie, Department
für Chemie, Universität zu Köln, Greinstr. 6, D-50939 Köln, Germany
| | - Ingo Pantenburg
- Institut für Anorganische Chemie, Department
für Chemie, Universität zu Köln, Greinstr. 6, D-50939 Köln, Germany
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46
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Breyer D, Braun T, Kläring P. Synthesis and Reactivity of the Fluoro Complex trans-[Pd(F)(4-C5NF4)(iPr2PCH2CH2OCH3)2]: C–F Bond Formation and Catalytic C–F Bond Activation Reactions. Organometallics 2012. [DOI: 10.1021/om200998d] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- David Breyer
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin,
Germany
| | - Thomas Braun
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin,
Germany
| | - Paul Kläring
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin,
Germany
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47
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Kläring P, Jungton AK, Braun T, Müller C. Synthesis, Structure and Reactivity of Iridium Hydrido Fluorido Complexes. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100917] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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48
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Sun AD, Love JA. Nickel-Catalyzed Selective Defluorination to Generate Partially Fluorinated Biaryls. Org Lett 2011; 13:2750-3. [DOI: 10.1021/ol200860t] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alex D. Sun
- Department of Chemistry, 2036 Main Mall, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - Jennifer A. Love
- Department of Chemistry, 2036 Main Mall, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
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49
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Ohashi M, Kambara T, Hatanaka T, Saijo H, Doi R, Ogoshi S. Palladium-Catalyzed Coupling Reactions of Tetrafluoroethylene with Arylzinc Compounds. J Am Chem Soc 2011; 133:3256-9. [DOI: 10.1021/ja109911p] [Citation(s) in RCA: 148] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Masato Ohashi
- Department of Applied Chemistry, Faculty of Engineering, and ‡Center for Atomic and Molecular Technologies, Osaka University, Suita, Osaka 565-0871, Japan
| | - Tadashi Kambara
- Department of Applied Chemistry, Faculty of Engineering, and ‡Center for Atomic and Molecular Technologies, Osaka University, Suita, Osaka 565-0871, Japan
| | - Tsubasa Hatanaka
- Department of Applied Chemistry, Faculty of Engineering, and ‡Center for Atomic and Molecular Technologies, Osaka University, Suita, Osaka 565-0871, Japan
| | - Hiroki Saijo
- Department of Applied Chemistry, Faculty of Engineering, and ‡Center for Atomic and Molecular Technologies, Osaka University, Suita, Osaka 565-0871, Japan
| | - Ryohei Doi
- Department of Applied Chemistry, Faculty of Engineering, and ‡Center for Atomic and Molecular Technologies, Osaka University, Suita, Osaka 565-0871, Japan
| | - Sensuke Ogoshi
- Department of Applied Chemistry, Faculty of Engineering, and ‡Center for Atomic and Molecular Technologies, Osaka University, Suita, Osaka 565-0871, Japan
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50
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[Ru(NHC)(P–P)(CO)HF] (NHC = N-heterocyclic carbene; P–P = xantphos, dppf) complexes: Efforts to prepare new hydrodefluorination catalysts. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2010.09.077] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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