1
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Zhang YY, Zhang Y, Xue XS, Qing FL. Reversal of the Regioselectivity of Iron-Promoted Hydrogenation and Hydrohalogenation of gem-Difluoroalkenes. Angew Chem Int Ed Engl 2024; 63:e202406324. [PMID: 38637292 DOI: 10.1002/anie.202406324] [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: 04/03/2024] [Accepted: 04/17/2024] [Indexed: 04/20/2024]
Abstract
The reaction regioselectivity of gem-difluoroalkenes is dependent on the intrinsic polarity. Thus, the reversal of the regioselectivity of the addition reaction of gem-difluoroalkenes remains a formidable challenge. Herein, we described an unprecedented reversal of regioselectivity of hydrogen atom transfer (HAT) to gem-difluoroalkenes triggered by Fe-H species for the formation of difluoroalkyl radicals. Hydrogenation of the in situ generated radicals gave difluoromethylated products. Mechanism experiments and theoretical studies revealed that the kinetic effect of the irreversible HAT process resulted in the reversal of the regioselectivity of this scenario, leading to the formation of a less stable α-difluoroalkyl radical regioisomer. On basis of this new reaction of gem-difluoroalkene, the iron-promoted hydrohalogenation of gem-difluoroalkenes for the efficient synthesis of aliphatic chlorodifluoromethyl-, bromodifluoromethyl- and iododifluoromethyl-containing compounds was developed. Particularly, this novel hydrohalogenation of gem-difluoroalkenes provided an effect and large-scale access to various iododifluoromethylated compounds of high value for synthetic application.
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Affiliation(s)
- Yu-Yang Zhang
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Science, 345 Lingling Road, Shanghai, 200032, China
| | - Yuchen Zhang
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Science, 345 Lingling Road, Shanghai, 200032, China
| | - Xiao-Song Xue
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Science, 345 Lingling Road, Shanghai, 200032, China
| | - Feng-Ling Qing
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Science, 345 Lingling Road, Shanghai, 200032, China
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2
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Normand AT, Wu Y, Régnier T, Fleurat-Lessard P, Rousselin Y, Théron B, Le Gendre P, Carta M. Poly(vinyl chloride) Dechlorination Catalyzed by Zirconium. Chemistry 2024; 30:e202304005. [PMID: 38314958 DOI: 10.1002/chem.202304005] [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: 12/01/2023] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/07/2024]
Abstract
Poly(vinyl chloride) undergoes dechlorination in the presence of triethylsilane (Et3SiH) and a catalytic amount of [Cp2Zr(NPh2)][CH3B(C6F5)3] (1 b) at 40-80 °C, with up to 91 % efficiency. Stoichiometric reactivity studies conducted on cyclohexyl chloride as a model suggest that 1 b dechlorinates PVC by initial chloride abstraction, followed by hydride transfer to the cationic PVC chain from Et3SiH. Consumer items such as pipe fitting, vinyl disc or electric cable insulation undergo either dechlorination or hydrosilylation of the carbonyl-containing copolymer (polyvinyl acetate) or plasticizer (phthalate).
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Affiliation(s)
- Adrien T Normand
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), 9 avenue Alain Savary, 21078, Dijon Cedex, France
| | - Yue Wu
- Department of Chemistry, Faculty of Science and Engineering, Swansea University, Singleton Park, SA2 8 PP, Swansea, Wales
| | - Tiffanie Régnier
- Plateforme d'Analyse de l'Institut de Chimie Moléculaire de l'Université de Bourgogne (PACSMUB), 9 avenue Alain Savary, 21078, Dijon Cedex, France
| | - Paul Fleurat-Lessard
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), 9 avenue Alain Savary, 21078, Dijon Cedex, France
| | - Yoann Rousselin
- Plateforme d'Analyse de l'Institut de Chimie Moléculaire de l'Université de Bourgogne (PACSMUB), 9 avenue Alain Savary, 21078, Dijon Cedex, France
| | - Benjamin Théron
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), 9 avenue Alain Savary, 21078, Dijon Cedex, France
| | - Pierre Le Gendre
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), 9 avenue Alain Savary, 21078, Dijon Cedex, France
| | - Mariolino Carta
- Department of Chemistry, Faculty of Science and Engineering, Swansea University, Singleton Park, SA2 8 PP, Swansea, Wales
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3
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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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4
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Novák Z, Kotschy A, Varga B, Csenki JT, Tóth BL, Béke F. Application of Industrially Relevant HydroFluoroOlefin (HFO) Gases in Organic Syntheses. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1538-8344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractHydrofluoroolefin (HFO) gases are state-of-the-art cooling agents with widespread household and industrial applications. Considering their structural benefits these fluorous feedstocks have gained the attention of organic chemists in the last couple of years. In this short review we summarized the existing synthetic transformations of these gaseous starting material and present their applicability in the synthesis of fluorine-containing organic molecules, which have potential importance as building blocks and reagents for diverse syntheses.1 Introduction2 Addition Reactions3 Substitutions4 Organometallic Chemistry4.1 Organolithium Compounds4.2 Organometallic Complexes4.3 Silicon Organic Chemistry4.4 Boron Organic Chemistry4.5 Palladium-Catalyzed Transformations4.6 Metathesis4.7 Hydroesterification, Hydroformylation5 Conclusions
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Affiliation(s)
- Zoltán Novák
- ELTE ‘Lendület’ Catalysis and Organic Synthesis Research Group, Institute of Chemistry, Faculty of Science, Eötvös Loránd University
| | | | - Bálint Varga
- ELTE ‘Lendület’ Catalysis and Organic Synthesis Research Group, Institute of Chemistry, Faculty of Science, Eötvös Loránd University
| | - János T. Csenki
- ELTE ‘Lendület’ Catalysis and Organic Synthesis Research Group, Institute of Chemistry, Faculty of Science, Eötvös Loránd University
| | - Balázs L. Tóth
- ELTE ‘Lendület’ Catalysis and Organic Synthesis Research Group, Institute of Chemistry, Faculty of Science, Eötvös Loránd University
| | - Ferenc Béke
- ELTE ‘Lendület’ Catalysis and Organic Synthesis Research Group, Institute of Chemistry, Faculty of Science, Eötvös Loránd University
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5
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Pavlenko NV, Peng S, Petrov V, Jackson A, Sun X, Sprague L, Yagupolskii YL. Catalytic Hydrosilylation of Hydrofluoroolefins (HFOs): Synthesis of New Fluorinated Silanes and Diversity of their Synthetic Character. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000853] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Natalia V. Pavlenko
- Institute of Organic Chemistry National Academy of Sciences of Ukraine Murmanska St. 5 02660 Kiev Ukraine
| | - Sheng Peng
- The Chemours Company, Experimental Station Bldg. 262 Wilmington De 19880 USA
| | - Viacheslav Petrov
- The Chemours Company, Experimental Station Bldg. 262 Wilmington De 19880 USA
| | - Andrew Jackson
- The Chemours Company, Experimental Station Bldg. 262 Wilmington De 19880 USA
| | - Xuehui Sun
- The Chemours Company, Experimental Station Bldg. 262 Wilmington De 19880 USA
| | - Lee Sprague
- The Chemours Company, Experimental Station Bldg. 262 Wilmington De 19880 USA
| | - Yurii L. Yagupolskii
- Institute of Organic Chemistry National Academy of Sciences of Ukraine Murmanska St. 5 02660 Kiev Ukraine
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6
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Dankert F, Deubner HL, Müller M, Buchner MR, Kraus F, von Hänisch C. C–F Bond Cleavage Reactions with Beryllium, Magnesium, Gallium, Hafnium, and Thorium Halides. Z Anorg Allg Chem 2020. [DOI: 10.1002/zaac.201900297] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Fabian Dankert
- Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften (WZMW) Philipps‐Universität Marburg Hans‐Meerwein Str. 4 35032 Marburg Germany
| | - H. Lars Deubner
- Fachbereich Chemie: Anorganische Chemie Fluorchemie Philipps‐Universität Marburg Hans‐Meerwein Str. 4 35032 Marburg Germany
| | - Matthias Müller
- Fachbereich Chemie: Anorganische Chemie Nachwuchsgruppe Berylliumchemie Philipps‐Universität Marburg Hans‐Meerwein Str. 4 35032 Marburg Germany
| | - Magnus R. Buchner
- Fachbereich Chemie: Anorganische Chemie Nachwuchsgruppe Berylliumchemie Philipps‐Universität Marburg Hans‐Meerwein Str. 4 35032 Marburg Germany
| | - Florian Kraus
- Fachbereich Chemie: Anorganische Chemie Fluorchemie Philipps‐Universität Marburg Hans‐Meerwein Str. 4 35032 Marburg Germany
| | - Carsten von Hänisch
- Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften (WZMW) Philipps‐Universität Marburg Hans‐Meerwein Str. 4 35032 Marburg Germany
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7
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Dunlop D, Pinkas J, Horáček M, Žilková N, Lamač M. Hydrodehalogenation of organohalides by Et3SiH catalysed by group 4 metal complexes and B(C6F5)3. Dalton Trans 2020; 49:2771-2775. [DOI: 10.1039/d0dt00360c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The use of the Et3SiH/B(C6F5)3 system for the activation of group 4 metal catalysts allows the efficient and selective catalytic hydrodefluorination of trifluorotoluenes.
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Affiliation(s)
- David Dunlop
- J. Heyrovský Institute of Physical Chemistry
- The Czech Academy of Sciences
- 18223 Prague 8
- Czech Republic
| | - Jiří Pinkas
- J. Heyrovský Institute of Physical Chemistry
- The Czech Academy of Sciences
- 18223 Prague 8
- Czech Republic
| | - Michal Horáček
- J. Heyrovský Institute of Physical Chemistry
- The Czech Academy of Sciences
- 18223 Prague 8
- Czech Republic
| | - Naděžda Žilková
- J. Heyrovský Institute of Physical Chemistry
- The Czech Academy of Sciences
- 18223 Prague 8
- Czech Republic
| | - Martin Lamač
- J. Heyrovský Institute of Physical Chemistry
- The Czech Academy of Sciences
- 18223 Prague 8
- Czech Republic
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8
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Manßen M, Schafer LL. Titanium catalysis for the synthesis of fine chemicals – development and trends. Chem Soc Rev 2020; 49:6947-6994. [DOI: 10.1039/d0cs00229a] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Atlas as a Titan(ium) is holding the earth-abundant chemistry world. Titanium is the second most abundant transition metal, is a key player in important industrial processes (e.g. polyethylene) and shows much promise for diverse applications in the future.
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Affiliation(s)
- Manfred Manßen
- The Department of Chemistry
- The University of British Columbia
- Vancouver
- Canada
| | - Laurel L. Schafer
- The Department of Chemistry
- The University of British Columbia
- Vancouver
- Canada
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9
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Talavera M, Müller R, Ahrens T, von Hahmann CN, Braun-Cula B, Kaupp M, Braun T. Activation of tetrafluoropropenes by rhodium(i) germyl and silyl complexes. Faraday Discuss 2019; 220:328-349. [PMID: 31538175 DOI: 10.1039/c9fd00059c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of the rhodium(i) complexes [Rh(E)(PEt3)3] (E = GePh3 (1), Si(OEt)3 (5)) with HFO-1234yf (2,3,3,3-tetrafluoropropene) afforded [Rh(F)(PEt3)3] (2) and the functionalized olefins Z-CF3CH[double bond, length as m-dash]CH(E) (E = GePh3 (4a), Si(OEt)3 (7)). Conceivable reaction pathways were assessed using DFT calculations. Reactions of [Rh(E)(PEt3)3] with HFO-1234ze (E-1,3,3,3-tetrafluoropropene) yielded the rhodium fluorido complex 2 and [Rh{(E)-CH[double bond, length as m-dash]CH(CF3)}(PEt3)3] (9) via two different reaction pathways. Using complexes 1 and 5 as catalysts, functionalized building blocks were obtained.
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Affiliation(s)
- Maria Talavera
- Humboldt-Universität zu Berlin, Department of Chemistry, Brook-Taylor-Straße 2, 12489 Berlin, Germany.
| | - Robert Müller
- Institut für Chemie, Theoretische Chemie/Quantenchemie, Technische Universität Berlin, Sekr. C7, Straße des 17. Juni 135, 10623 Berlin, Germany.
| | - Theresia Ahrens
- Humboldt-Universität zu Berlin, Department of Chemistry, Brook-Taylor-Straße 2, 12489 Berlin, Germany.
| | - Cortney N von Hahmann
- Humboldt-Universität zu Berlin, Department of Chemistry, Brook-Taylor-Straße 2, 12489 Berlin, Germany.
| | - Beatrice Braun-Cula
- Humboldt-Universität zu Berlin, Department of Chemistry, Brook-Taylor-Straße 2, 12489 Berlin, Germany.
| | - Martin Kaupp
- Institut für Chemie, Theoretische Chemie/Quantenchemie, Technische Universität Berlin, Sekr. C7, Straße des 17. Juni 135, 10623 Berlin, Germany.
| | - Thomas Braun
- Humboldt-Universität zu Berlin, Department of Chemistry, Brook-Taylor-Straße 2, 12489 Berlin, Germany.
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10
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Il’in EG, Parshakov AS, Privalov VI, Goryunov EI, Goryunova IB, Nifant’ev EE. Stereochemistry of Octahedral cis-Tetrafluoro Titanium Complexes with Ph2P(O)CH(Me)CH2C(O)Et Enantiomers in CH2Cl2. RUSS J COORD CHEM+ 2019. [DOI: 10.1134/s1070328419090057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Talavera M, von Hahmann CN, Müller R, Ahrens M, Kaupp M, Braun T. C−H and C−F Bond Activation Reactions of Fluorinated Propenes at Rhodium: Distinctive Reactivity of the Refrigerant HFO‐1234yf. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201902872] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Maria Talavera
- Department of ChemistryHumboldt Universität zu Berlin Brook-Taylor-Strasse 2 12489 Berlin Germany
| | - Cortney N. von Hahmann
- Department of ChemistryHumboldt Universität zu Berlin Brook-Taylor-Strasse 2 12489 Berlin Germany
| | - Robert Müller
- Institut für Chemie, Theoretische Chemie/Quantenchemie, Sekr. C7Technische Universität Berlin Strasse des 17. Juni 135 10623 Berlin Germany
| | - Mike Ahrens
- Department of ChemistryHumboldt Universität zu Berlin Brook-Taylor-Strasse 2 12489 Berlin Germany
| | - Martin Kaupp
- Institut für Chemie, Theoretische Chemie/Quantenchemie, Sekr. C7Technische Universität Berlin Strasse des 17. Juni 135 10623 Berlin Germany
| | - Thomas Braun
- Department of ChemistryHumboldt Universität zu Berlin Brook-Taylor-Strasse 2 12489 Berlin Germany
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12
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Talavera M, von Hahmann CN, Müller R, Ahrens M, Kaupp M, Braun T. C-H and C-F Bond Activation Reactions of Fluorinated Propenes at Rhodium: Distinctive Reactivity of the Refrigerant HFO-1234yf. Angew Chem Int Ed Engl 2019; 58:10688-10692. [PMID: 31102565 DOI: 10.1002/anie.201902872] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 04/28/2019] [Indexed: 02/02/2023]
Abstract
The reaction of [Rh(H)(PEt3 )3 ] (1) with the refrigerant HFO-1234yf (2,3,3,3-tetrafluoropropene) affords an efficient route to obtain [Rh(F)(PEt3 )3 ] (3) by C-F bond activation. Catalytic hydrodefluorinations were achieved in the presence of the silane HSiPh3 . In the presence of a fluorosilane, 3 provides a C-H bond activation followed by a 1,2-fluorine shift to produce [Rh{(E)-C(CF3 )=CHF}(PEt3 )3 ] (4). Similar rearrangements of HFO-1234yf were observed at [Rh(E)(PEt3 )3 ] [E=Bpin (6), C7 D7 (8), Me (9)]. The ability to favor C-H bond activation using 3 and fluorosilane is also demonstrated with 3,3,3-trifluoropropene. Studies are supported by DFT calculations.
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Affiliation(s)
- Maria Talavera
- Department of Chemistry, Humboldt Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Cortney N von Hahmann
- Department of Chemistry, Humboldt Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Robert Müller
- Institut für Chemie, Theoretische Chemie/Quantenchemie, Sekr. C7, Technische Universität Berlin, Strasse des 17. Juni 135, 10623, Berlin, Germany
| | - Mike Ahrens
- Department of Chemistry, Humboldt Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Martin Kaupp
- Institut für Chemie, Theoretische Chemie/Quantenchemie, Sekr. C7, Technische Universität Berlin, Strasse des 17. Juni 135, 10623, Berlin, Germany
| | - Thomas Braun
- Department of Chemistry, Humboldt Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
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13
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Fisher SP, Tomich AW, Lovera SO, Kleinsasser JF, Guo J, Asay MJ, Nelson HM, Lavallo V. Nonclassical Applications of closo-Carborane Anions: From Main Group Chemistry and Catalysis to Energy Storage. Chem Rev 2019; 119:8262-8290. [PMID: 30707011 DOI: 10.1021/acs.chemrev.8b00551] [Citation(s) in RCA: 173] [Impact Index Per Article: 34.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Classically closo-carborane anions, particularly [HCB11H11]- and [HCB9H9]-, and their derivatives have primarily been used as weakly coordinating anions to isolate reactive intermediates, platforms for stoichiometric and catalytic functionalization, counteranions for simple Lewis acid catalysis, and components of materials like liquid crystals. The aim of this article is to educate the reader on the contemporary nonclassical applications of these anions. Specifically, this review will cover new directions in main group catalysis utilized to achieve some of the most challenging catalytic reactions such as C-F, C-H, and C-C functionalizations that are difficult or impossible to realize with transition metals. In addition, the review will cover the utilization of the clusters as dianionic C σ-bound ligands for coordination chemistry, ligand substituents for coordination chemistry and advanced catalyst design, and covalently bound spectator substituents to stabilize radicals. Furthermore, their applications as solution-based and solid-state electrolytes for Li, Na, and Mg batteries will be discussed.
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Affiliation(s)
- S P Fisher
- Department of Chemistry , University of California, Riverside , 501 Big Springs Road , Riverside , California 92521 , United States
| | - A W Tomich
- Department of Chemistry , University of California, Riverside , 501 Big Springs Road , Riverside , California 92521 , United States
| | - S O Lovera
- Department of Chemistry , University of California, Riverside , 501 Big Springs Road , Riverside , California 92521 , United States
| | - J F Kleinsasser
- Department of Chemistry , University of California, Riverside , 501 Big Springs Road , Riverside , California 92521 , United States
| | - J Guo
- Department of Chemical and Environmental Engineering , University of California, Riverside , Riverside , California 92521 , United States
| | - M J Asay
- Department of Chemistry and Biochemistry , University of California , Los Angeles , California 90095 , United States
| | - H M Nelson
- Department of Chemistry and Biochemistry , University of California , Los Angeles , California 90095 , United States
| | - V Lavallo
- Department of Chemistry , University of California, Riverside , 501 Big Springs Road , Riverside , California 92521 , United States
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14
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Fujita T, Fuchibe K, Ichikawa J. Transition-Metal-Mediated and -Catalyzed C−F Bond Activation by Fluorine Elimination. Angew Chem Int Ed Engl 2018; 58:390-402. [DOI: 10.1002/anie.201805292] [Citation(s) in RCA: 241] [Impact Index Per Article: 40.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Indexed: 01/29/2023]
Affiliation(s)
- Takeshi Fujita
- Division of Chemistry; Faculty of Pure and Applied Sciences; University of Tsukuba; Tsukuba Ibaraki 305-8571 Japan
| | - Kohei Fuchibe
- Division of Chemistry; Faculty of Pure and Applied Sciences; University of Tsukuba; Tsukuba Ibaraki 305-8571 Japan
| | - Junji Ichikawa
- Division of Chemistry; Faculty of Pure and Applied Sciences; University of Tsukuba; Tsukuba Ibaraki 305-8571 Japan
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15
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Fujita T, Fuchibe K, Ichikawa J. Übergangsmetallvermittelte und -katalysierte C-F-Bindungsaktivierung durch Fluoreliminierung. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805292] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Takeshi Fujita
- Division of Chemistry; Faculty of Pure and Applied Sciences; University of Tsukuba; Tsukuba Ibaraki 305-8571 Japan
| | - Kohei Fuchibe
- Division of Chemistry; Faculty of Pure and Applied Sciences; University of Tsukuba; Tsukuba Ibaraki 305-8571 Japan
| | - Junji Ichikawa
- Division of Chemistry; Faculty of Pure and Applied Sciences; University of Tsukuba; Tsukuba Ibaraki 305-8571 Japan
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17
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Chen WJ, Xu RN, Lin W, Sun X, Wang B, Wu QH, Huang X. DFT Studies on Ni-Mediated C-F Cleavage for the Synthesis of Cyclopentadiene Derivatives. Front Chem 2018; 6:319. [PMID: 30151361 PMCID: PMC6099089 DOI: 10.3389/fchem.2018.00319] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 07/10/2018] [Indexed: 11/13/2022] Open
Abstract
Density functional theory calculations have been performed to study the detailed mechanism of Ni-mediated [3+2] cycloaddition of 2-trifluoromethyl-1-alkenes with alkynes via cleavage of two C-F bonds. It was found that the reaction pathway involves oxidative cyclization, the first β-fluorine elimination, and then intramolecular 5-endo insertion of difluoroalkene, followed by the second cleavage of C-F bond, and finally the dissociation of difluorides yields the fluorine-containing product cyclopentadienes in sequence. The overall rate-determining step is the combined processes of the β-fluorine elimination and the 5-endo insertion. Furthermore, we investigated the effect of different ligands and the regioselectivity of asymmetric alkynes. The detailed energy profiles and structures are presented in this study.
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Affiliation(s)
- Wen-Jie Chen
- Department of Material Chemistry, College of Chemical Engineering and Materials Science Quanzhou Normal University, Quanzhou, China
| | - Ruo-Nan Xu
- Department of Chemistry, College of Chemistry Fuzhou University, Fuzhou, China
| | - Weimin Lin
- Department of Material Chemistry, College of Chemical Engineering and Materials Science Quanzhou Normal University, Quanzhou, China
| | - Xuejiao Sun
- Department of Material Chemistry, College of Chemical Engineering and Materials Science Quanzhou Normal University, Quanzhou, China
| | - Bin Wang
- Department of Chemistry, College of Chemistry Fuzhou University, Fuzhou, China
| | - Qi-Hui Wu
- Department of Material Chemistry, College of Chemical Engineering and Materials Science Quanzhou Normal University, Quanzhou, China
| | - Xin Huang
- Department of Chemistry, College of Chemistry Fuzhou University, Fuzhou, China
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18
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Sander P, Geibel I, Witte C, Hüller S, Schmidtmann M, Beckhaus R. Self‐Assembly Reactions To Form Multinuclear Zirconium(III) and Titanium(III) Complexes with Imidazole Derivatives as Bridging Ligands. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800840] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Pia Sander
- Institut für Chemie Fakultät für Mathematik und Naturwissenschaften Carl von Ossietzky Universität Oldenburg Postfach 2503 26111 Oldenburg Germany
| | - Irina Geibel
- Institut für Chemie Fakultät für Mathematik und Naturwissenschaften Carl von Ossietzky Universität Oldenburg Postfach 2503 26111 Oldenburg Germany
| | - Carina Witte
- Institut für Chemie Fakultät für Mathematik und Naturwissenschaften Carl von Ossietzky Universität Oldenburg Postfach 2503 26111 Oldenburg Germany
| | - Sascha Hüller
- Institut für Chemie Fakultät für Mathematik und Naturwissenschaften Carl von Ossietzky Universität Oldenburg Postfach 2503 26111 Oldenburg Germany
| | - Marc Schmidtmann
- Institut für Chemie Fakultät für Mathematik und Naturwissenschaften Carl von Ossietzky Universität Oldenburg Postfach 2503 26111 Oldenburg Germany
| | - Rüdiger Beckhaus
- Institut für Chemie Fakultät für Mathematik und Naturwissenschaften Carl von Ossietzky Universität Oldenburg Postfach 2503 26111 Oldenburg Germany
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19
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Kučnirová K, Šimůnek O, Rybáčková M, Kvíčala J. Structural Assignment of Fluorocyclobutenes by 19
F NMR Spectroscopy - Comparison of Calculated 19
F NMR Shielding Constants with Experimental 19
F NMR Shifts. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kateřina Kučnirová
- Department of Organic Chemistry; University of Chemistry and Technology, Prague; Technická 5 166 28 Prague 6 Czech Republic
| | - Ondřej Šimůnek
- Department of Organic Chemistry; University of Chemistry and Technology, Prague; Technická 5 166 28 Prague 6 Czech Republic
| | - Markéta Rybáčková
- Department of Organic Chemistry; University of Chemistry and Technology, Prague; Technická 5 166 28 Prague 6 Czech Republic
| | - Jaroslav Kvíčala
- Department of Organic Chemistry; University of Chemistry and Technology, Prague; Technická 5 166 28 Prague 6 Czech Republic
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20
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Gushchin AL, Laricheva YA, Sokolov MN, Llusar R. Tri- and tetranuclear molybdenum and tungsten chalcogenide clusters: on the way to new materials and catalysts. RUSSIAN CHEMICAL REVIEWS 2018. [DOI: 10.1070/rcr4800] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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21
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Kučnirová K, Šimůnek O, Rybáčková M, Kvíčala J. Structural Assignment of Fluorocyclobutenes by 19
F NMR Spectroscopy - Comparison of Calculated 19
F NMR Shielding Constants with Experimental 19
F NMR Shifts. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800482] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Kateřina Kučnirová
- Department of Organic Chemistry; University of Chemistry and Technology, Prague; Technická 5 166 28 Prague 6 Czech Republic
| | - Ondřej Šimůnek
- Department of Organic Chemistry; University of Chemistry and Technology, Prague; Technická 5 166 28 Prague 6 Czech Republic
| | - Markéta Rybáčková
- Department of Organic Chemistry; University of Chemistry and Technology, Prague; Technická 5 166 28 Prague 6 Czech Republic
| | - Jaroslav Kvíčala
- Department of Organic Chemistry; University of Chemistry and Technology, Prague; Technická 5 166 28 Prague 6 Czech Republic
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22
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Takahashi K, Ogiwara Y, Sakai N. Palladium-Catalyzed Reductive Coupling Reaction of Terminal Alkynes with Aryl Iodides Utilizing Hafnocene Difluoride as a Hafnium Hydride Precursor Leading to trans-Alkenes. Chem Asian J 2018; 13:809-814. [PMID: 29377507 DOI: 10.1002/asia.201701775] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 01/25/2018] [Indexed: 12/15/2022]
Abstract
Herein, we describe a reductive cross-coupling of alkynes and aryl iodides by using a novel catalytic system composed of a catalytic amount of palladium dichloride and a promoter precursor, hafnocene difluoride (Cp2 HfF2 , Cp=cyclopentadienyl anion), in the presence of a mild reducing reagent, a hydrosilane, leading to a one-pot preparation of trans-alkenes. In this process, a series of coupling reactions efficiently proceeds through the following three steps: (i) an initial formation of hafnocene hydride from hafnocene difluoride and the hydrosilane, (ii) a subsequent hydrohafnation toward alkynes, and (iii) a final transmetalation of the alkenyl hafnium species to a palladium complex. This reductive coupling could be chemoselectively applied to the preparation of trans-alkenes with various functional groups, such as an alkyl group, a halogen, an ester, a nitro group, a heterocycle, a boronic ester, and an internal alkyne.
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Affiliation(s)
- Keita Takahashi
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science (RIKADAI), Noda, Chiba, 278-8510, Japan
| | - Yohei Ogiwara
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science (RIKADAI), Noda, Chiba, 278-8510, Japan
| | - Norio Sakai
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science (RIKADAI), Noda, Chiba, 278-8510, Japan
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23
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Jaeger AD, Ehm C, Lentz D. Organocatalytic C−F Bond Activation with Alanes. Chemistry 2018; 24:6769-6777. [DOI: 10.1002/chem.201706061] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 02/13/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Alma D. Jaeger
- Freie Universität Berlin; Institut für Chemie und Biochemie, Anorganische Chemie; Fabeckstr. 34-36 14195 Berlin Germany
| | - Christian Ehm
- Università di Napoli Federico II; Dipartimento di Scienze Chimiche; Via Cintia 80126 Napoli Italy
| | - Dieter Lentz
- Freie Universität Berlin; Institut für Chemie und Biochemie, Anorganische Chemie; Fabeckstr. 34-36 14195 Berlin Germany
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24
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Wozniak M, Braun T, Ahrens M, Braun-Cula B, Wittwer P, Herrmann R, Laubenstein R. Activation of SF6 at a Xantphos-Type Rhodium Complex. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00858] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Martin Wozniak
- 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
| | - Mike Ahrens
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany
| | - Beatrice Braun-Cula
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany
| | - Philipp Wittwer
- 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
| | - Reik Laubenstein
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany
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25
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Chen H, He Y, Zhou L. A photocatalytic decarboxylative/defluorinative [4 + 3] annulation of o-hydroxyphenylacetic acids and trifluoromethyl alkenes: synthesis of fluorinated dihydrobenzoxepines. Org Chem Front 2018. [DOI: 10.1039/c8qo00970h] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A photocatalytic decarboxylative/defluorinative [4 + 3] annulation of o-hydroxyphenylacetic acids and trifluoromethyl alkenes was developed. The reaction led to fluorinated dihydrobenzoxepines through two consecutive C–F substitutions in a CF3 group.
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Affiliation(s)
- Haoguo Chen
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Yuwei He
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Lei Zhou
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
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26
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Hu J, Han X, Yuan Y, Shi Z. Stereoselective Synthesis of Z Fluoroalkenes through Copper-Catalyzed Hydrodefluorination of gem
-Difluoroalkenes with Water. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708224] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jiefeng Hu
- State Key Laboratory of Coordination Chemistry; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Xiaowei Han
- State Key Laboratory of Coordination Chemistry; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
- College of Chemistry and Chemical Engineering; Yangzhou University; Yangzhou 225002 China
| | - Yu Yuan
- College of Chemistry and Chemical Engineering; Yangzhou University; Yangzhou 225002 China
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination Chemistry; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
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27
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Hu J, Han X, Yuan Y, Shi Z. Stereoselective Synthesis of Z Fluoroalkenes through Copper-Catalyzed Hydrodefluorination of gem
-Difluoroalkenes with Water. Angew Chem Int Ed Engl 2017; 56:13342-13346. [DOI: 10.1002/anie.201708224] [Citation(s) in RCA: 117] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Jiefeng Hu
- State Key Laboratory of Coordination Chemistry; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Xiaowei Han
- State Key Laboratory of Coordination Chemistry; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
- College of Chemistry and Chemical Engineering; Yangzhou University; Yangzhou 225002 China
| | - Yu Yuan
- College of Chemistry and Chemical Engineering; Yangzhou University; Yangzhou 225002 China
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination Chemistry; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
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28
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Berger J, Braun T, Ahrens T, Kläring P, Laubenstein R, Braun-Cula B. The Versatile Behavior of Platinum Alkyne Complexes towards XeF 2 : Formation of Fluorovinyl and Fluorido Complexes. Chemistry 2017; 23:8886-8900. [PMID: 28472555 DOI: 10.1002/chem.201700403] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Indexed: 12/31/2022]
Abstract
Reactions of platinum(0) tolane complexes, bearing a chelating ligand with P and N donor atoms, with the electrophilic fluorinating agent XeF2 give facile access to platinum(II) β-fluorovinyl fluorido complexes. A series of new platinum(II) β-fluorovinyl complexes have been synthesized and were structurally characterized. Further oxidation with XeF2 led to ortho-metalated platinum(IV) fluorido compounds. Additional reactions of platinum(0) tolane complexes, bearing a chelating P,P donor ligand, with XeF2 led to a variety of fluorido and fluorovinyl complexes.
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Affiliation(s)
- Josefine Berger
- 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
| | - Theresia Ahrens
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor Str. 2, 12489, Berlin, Germany
| | - Paul Kläring
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor Str. 2, 12489, Berlin, Germany
| | - Reik Laubenstein
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor Str. 2, 12489, Berlin, Germany
| | - Beatrice Braun-Cula
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor Str. 2, 12489, Berlin, Germany
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29
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Adler C, Diekmann M, Schmidtmann M, Beckhaus R. Activation of Molecular Hydrogen by Bis(η5
,η1
-pentafulvene)-titanium Complexes - Efficient Formation of Titanium(III)hydrides. Z Anorg Allg Chem 2017. [DOI: 10.1002/zaac.201700095] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Christian Adler
- Institut für Chemie; Fakultät für Mathematik und Naturwissenschaften; Carl von Ossietzky Universität Oldenburg; Postfach 2503 26111 Oldenburg Germany
| | - Mira Diekmann
- Institut für Chemie; Fakultät für Mathematik und Naturwissenschaften; Carl von Ossietzky Universität Oldenburg; Postfach 2503 26111 Oldenburg Germany
| | - Marc Schmidtmann
- Institut für Chemie; Fakultät für Mathematik und Naturwissenschaften; Carl von Ossietzky Universität Oldenburg; Postfach 2503 26111 Oldenburg Germany
| | - Rüdiger Beckhaus
- Institut für Chemie; Fakultät für Mathematik und Naturwissenschaften; Carl von Ossietzky Universität Oldenburg; Postfach 2503 26111 Oldenburg Germany
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30
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Giffin KA, Pua LA, Piotrkowski S, Gabidullin BM, Korobkov I, Hughes RP, Baker RT. Generation of Hydrofluoronickelacycles from Trifluoroethylene and Ni(0): Ligand Effects on Regio-/Stereoselectivity and Reactivity. J Am Chem Soc 2017; 139:4075-4086. [DOI: 10.1021/jacs.6b12607] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Kaitie A. Giffin
- Department
of Chemistry and Biomolecular Sciences and Centre for Catalysis Research
and Innovation, University of Ottawa, 30 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Lorraine A. Pua
- Department
of Chemistry and Biomolecular Sciences and Centre for Catalysis Research
and Innovation, University of Ottawa, 30 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Sarah Piotrkowski
- Department
of Chemistry and Biomolecular Sciences and Centre for Catalysis Research
and Innovation, University of Ottawa, 30 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Bulat M. Gabidullin
- Department
of Chemistry and Biomolecular Sciences and Centre for Catalysis Research
and Innovation, University of Ottawa, 30 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Ilia Korobkov
- Department
of Chemistry and Biomolecular Sciences and Centre for Catalysis Research
and Innovation, University of Ottawa, 30 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Russell P. Hughes
- Department
of Chemistry, Dartmouth College, 6128 Burke Laboratories, Hanover, New Hampshire 03755, United States
| | - R. Tom Baker
- Department
of Chemistry and Biomolecular Sciences and Centre for Catalysis Research
and Innovation, University of Ottawa, 30 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
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31
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Zhang X, Cao S. Recent advances in the synthesis and CF functionalization of gem-difluoroalkenes. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2016.12.054] [Citation(s) in RCA: 190] [Impact Index Per Article: 27.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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32
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Ohashi M, Ueda Y, Ogoshi S. Nickel(0)-Mediated Transformation of Tetrafluoroethylene and Vinylarenes into Fluorinated Cyclobutyl Compounds. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201610047] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Masato Ohashi
- Department of Applied Chemistry; Faculty of Engineering; Osaka University; Suita, Osaka 565-0871 Japan
| | - Yuta Ueda
- 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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33
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Ohashi M, Ueda Y, Ogoshi S. Nickel(0)-Mediated Transformation of Tetrafluoroethylene and Vinylarenes into Fluorinated Cyclobutyl Compounds. Angew Chem Int Ed Engl 2017; 56:2435-2439. [DOI: 10.1002/anie.201610047] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 11/30/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Masato Ohashi
- Department of Applied Chemistry; Faculty of Engineering; Osaka University; Suita, Osaka 565-0871 Japan
| | - Yuta Ueda
- 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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34
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Meißner G, Dirican D, Jäger C, Braun T, Kemnitz E. Et3GeH versus Et3SiH: controlling reaction pathways in catalytic C–F bond activations at a nanoscopic aluminum chlorofluoride. Catal Sci Technol 2017. [DOI: 10.1039/c7cy00845g] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Catalytic C–F activations at Lewis-acidic amorphous aluminum chlorofluoride (ACF) with Et3GeH and Et3SiH for reaction pathway control are presented.
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Affiliation(s)
- G. Meißner
- Department of Chemistry
- Humboldt-Universität zu Berlin
- 12489 Berlin
- Germany
| | - D. Dirican
- Department of Chemistry
- Humboldt-Universität zu Berlin
- 12489 Berlin
- Germany
| | - C. Jäger
- Bundesanstalt für Materialforschung und -prüfung
- 12489 Berlin
- Germany
| | - T. Braun
- Department of Chemistry
- Humboldt-Universität zu Berlin
- 12489 Berlin
- Germany
| | - E. Kemnitz
- Department of Chemistry
- Humboldt-Universität zu Berlin
- 12489 Berlin
- Germany
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35
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Kojima R, Kubota K, Ito H. Stereodivergent hydrodefluorination of gem-difluoroalkenes: selective synthesis of (Z)- and (E)-monofluoroalkenes. Chem Commun (Camb) 2017; 53:10688-10691. [DOI: 10.1039/c7cc05225a] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have developed a novel approach for the stereodivergent hydrodefluorination of gem-difluoroalkenes using copper(i) catalysts to obtain stereodefined monofluoroalkenes. Both (Z)- and (E)-terminal monofluoroalkenes were obtained by hydrodefluorination of gem-difluoroalkenes in the presence of copper(i) catalysts and diboron or hydrosilane, respectively, with high stereoselectivity. DFT calculations were conducted to elucidate the stereoselectivity.
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Affiliation(s)
- Ryoto Kojima
- Division of Applied Chemistry and Frontier Chemistry Center
- Graduate School of Engineering
- Hokkaido University
- Sapporo 060-8628
- Japan
| | - Koji Kubota
- Division of Applied Chemistry and Frontier Chemistry Center
- Graduate School of Engineering
- Hokkaido University
- Sapporo 060-8628
- Japan
| | - Hajime Ito
- Division of Applied Chemistry and Frontier Chemistry Center
- Graduate School of Engineering
- Hokkaido University
- Sapporo 060-8628
- Japan
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36
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Competition of Nucleophilic Aromatic Substitution, σ-Bond Metathesis, and syn
Hydrometalation in Titanium(III)-Catalyzed Hydrodefluorination of Arenes. Chem Asian J 2016; 11:3062-3071. [DOI: 10.1002/asia.201601036] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Indexed: 11/07/2022]
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37
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Ehm C, Krüger J, Lentz D. How a Thermally Unstable Metal Hydrido Complex Can Yield High Catalytic Activity Even at Elevated Temperatures. Chemistry 2016; 22:9305-10. [DOI: 10.1002/chem.201601641] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Indexed: 11/05/2022]
Affiliation(s)
- Christian Ehm
- Dipartimento di Scienze Chimiche; Università di Napoli Federico II; Via Cintia 80126 Napoli Italy
| | - Juliane Krüger
- Institut für Chemie und Biochemie, Anorganische Chemie; Freie Universität Berlin; Fabeckstr. 34-36 14195 Berlin Germany
| | - Dieter Lentz
- Institut für Chemie und Biochemie, Anorganische Chemie; Freie Universität Berlin; Fabeckstr. 34-36 14195 Berlin Germany
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38
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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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39
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Dai W, Zhang X, Zhang J, Lin Y, Cao S. Synthesis of Exocyclic Trisubstituted Alkenes
via
Nickel‐ Catalyzed Kumada‐Type Cross‐Coupling Reaction of
gem
‐ Difluoroalkenes with Di‐Grignard Reagents. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500889] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Wenpeng Dai
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology (ECUST), Shanghai 200237, People's Republic of China, Fax: (+86)‐21‐64252603; phone: (+86)‐21‐64253452
| | - Xuxue Zhang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology (ECUST), Shanghai 200237, People's Republic of China, Fax: (+86)‐21‐64252603; phone: (+86)‐21‐64253452
| | - Juan Zhang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology (ECUST), Shanghai 200237, People's Republic of China, Fax: (+86)‐21‐64252603; phone: (+86)‐21‐64253452
| | - Yingyin Lin
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology (ECUST), Shanghai 200237, People's Republic of China, Fax: (+86)‐21‐64252603; phone: (+86)‐21‐64253452
| | - Song Cao
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology (ECUST), Shanghai 200237, People's Republic of China, Fax: (+86)‐21‐64252603; phone: (+86)‐21‐64253452
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40
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Zhang D, Liu H, Zhu P, Meng W, Huang Y. One-pot syntheses of N-(α-fluorovinyl)azole derivatives from N-(diphenylmethylene)-2,2,2-trifluoroethanamine. RSC Adv 2016. [DOI: 10.1039/c6ra12187j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
N-(Diphenylmethylene)-2,2,2-trifluoroethanamine acts as a versatile fluorine-containing building block, and from which N-(α-fluorovinyl)azole derivatives were prepared in a one-pot process.
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Affiliation(s)
- Donghua Zhang
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- China
| | - Haihua Liu
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- China
| | - Pengcheng Zhu
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- China
| | - Weidong Meng
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- China
| | - Yangen Huang
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- China
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41
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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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42
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Wenz J, Rettenmeier CA, Wadepohl H, Gade LH. Catalytic C–F bond activation of geminal difluorocyclopropanes by nickel(i) complexes via a radical mechanism. Chem Commun (Camb) 2016; 52:202-5. [DOI: 10.1039/c5cc08950f] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nickel(ii) fluorido complexes bearing NNN-pincer ligands were found to be catalysts in the hydrodefluorination of geminal difluorocyclopropanes which undergo ring-opening to form the corresponding monofluoroalkenes in good yield and high Z-selectivities.
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Affiliation(s)
- Jan Wenz
- Anorganisch-Chemisches Institut
- University of Heidelberg
- 69120 Heidelberg
- Germany
| | | | - Hubert Wadepohl
- Anorganisch-Chemisches Institut
- University of Heidelberg
- 69120 Heidelberg
- Germany
| | - Lutz H. Gade
- Anorganisch-Chemisches Institut
- University of Heidelberg
- 69120 Heidelberg
- Germany
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43
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Ahrens T, Teltewskoi M, Ahrens M, Braun T, Laubenstein R. Competing reaction pathways of 3,3,3-trifluoropropene at rhodium hydrido, silyl and germyl complexes: C–F bond activation versus hydrogermylation. Dalton Trans 2016; 45:17495-17507. [DOI: 10.1039/c6dt03027k] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reactivity of the Rh complexes [Rh(L)(PEt3)3] (L = H, Si(OEt)3, GePh3) towards CH2CHCF3 was investigated which involve C–F bond activation and germylation reactions.
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Affiliation(s)
- Theresia Ahrens
- Humboldt-Universität zu Berlin
- Department of Chemistry
- D-12489 Berlin
- Germany
| | - Michael Teltewskoi
- 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
| | - Reik Laubenstein
- Humboldt-Universität zu Berlin
- Department of Chemistry
- D-12489 Berlin
- Germany
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44
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Krüger J, Ehm C, Lentz D. Improving selectivity in catalytic hydrodefluorination by limiting SNV reactivity. Dalton Trans 2016; 45:16789-16798. [DOI: 10.1039/c6dt02961b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Competition of HM, SBM and SNV in hydrodefluorination can lead to low selectivity which can be improved via solvent change.
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Affiliation(s)
- Juliane Krüger
- Institut für Chemie und Biochemie
- Anorganische Chemie
- Freie Universität Berlin
- 14195 Berlin
- Germany
| | - Christian Ehm
- Dipartimento di Scienze Chimiche
- Università di Napoli Federico II
- 80126 Napoli
- Italy
| | - Dieter Lentz
- Institut für Chemie und Biochemie
- Anorganische Chemie
- Freie Universität Berlin
- 14195 Berlin
- Germany
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45
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Mizukami Y, Song Z, Takahashi T. Halogen Exchange Reaction of Aliphatic Fluorine Compounds with Organic Halides as Halogen Source. Org Lett 2015; 17:5942-5. [DOI: 10.1021/acs.orglett.5b02589] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuki Mizukami
- Catalysis Research Center
and Graduate School of Life Science, Hokkaido University, Kita-ku, Sapporo 001-0021, Japan
| | - Zhiyi Song
- Catalysis Research Center
and Graduate School of Life Science, Hokkaido University, Kita-ku, Sapporo 001-0021, Japan
| | - Tamotsu Takahashi
- Catalysis Research Center
and Graduate School of Life Science, Hokkaido University, Kita-ku, Sapporo 001-0021, Japan
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46
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Shen Q, Huang YG, Liu C, Xiao JC, Chen QY, Guo Y. Review of recent advances in CF bond activation of aliphatic fluorides. J Fluor Chem 2015. [DOI: 10.1016/j.jfluchem.2015.07.007] [Citation(s) in RCA: 173] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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47
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Boreen MA, Bogart JA, Carroll PJ, Schelter EJ. Rearrangement in a Tripodal Nitroxide Ligand To Modulate the Reactivity of a Ti–F Bond. Inorg Chem 2015; 54:9588-93. [DOI: 10.1021/acs.inorgchem.5b01687] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michael A. Boreen
- P. Roy
and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Justin A. Bogart
- P. Roy
and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Patrick J. Carroll
- P. Roy
and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Eric J. Schelter
- P. Roy
and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
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48
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Podolan G, Jungk P, Lentz D, Zimmer R, Reissig HU. Studies on the Synthesis of Specifically Fluorinated 4-Amino- pyridine Derivatives by Regioselective Nucleophilic Aromatic Substitution and Catalytic Hydrodefluorination. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500393] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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49
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Wang L, Sun H, Li X. Synthesis of Iron Hydrides by Selective C-F/C-H Bond Activation in Fluoroarylimines and Their Applications in Catalytic Reduction Reactions. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500313] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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50
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Đorđević N, Tay MQY, Muthaiah S, Ganguly R, Dimić D, Vidović D. C–F Bond Activation by Transient Phosphenium Dications. Inorg Chem 2015; 54:4180-2. [DOI: 10.1021/ic5031125] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nemanja Đorđević
- SPMS-CBC, Nanyang Technological University, 21 Nanyang Link, Singapore 638737, Singapore
| | - Madelyn Qin Yi Tay
- SPMS-CBC, Nanyang Technological University, 21 Nanyang Link, Singapore 638737, Singapore
| | | | - Rakesh Ganguly
- SPMS-CBC, Nanyang Technological University, 21 Nanyang Link, Singapore 638737, Singapore
| | - Dušan Dimić
- Faculty of Physical Chemistry, University of Belgrade, 11000 Belgrade, Republic of Serbia
| | - Dragoslav Vidović
- SPMS-CBC, Nanyang Technological University, 21 Nanyang Link, Singapore 638737, Singapore
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