1
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Whited MT. Pincer-supported metal/main-group bonds as platforms for cooperative transformations. Dalton Trans 2021; 50:16443-16450. [PMID: 34705001 DOI: 10.1039/d1dt02739e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electron-rich late metals and electropositive main-group elements (metals and metalloids) can be combined to provide an ambiphilic façade for exploring metal-ligand cooperation, yet the instability of the metal/main-group bond frequently limits the study and application of such units. Incorporating main-group donors into pincer frameworks, where they are stabilized and held in proximity to the transition-metal partner, can allow discovery of new modes of reactivity and incorporation into catalytic processes. This Perspective summarizes common modes of cooperativity that have been demonstrated for pincer frameworks featuring metal/main-group bonds, highlighting similarities among boron, aluminium, and silicon donors and identifying directions for further development.
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Affiliation(s)
- Matthew T Whited
- Department of Chemistry, Carleton College, Northfield, MN 55057, USA.
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2
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Brown RK, Hooper TN, Rekhroukh F, White AJP, Costa PJ, Crimmin MR. Alumination of aryl methyl ethers: switching between sp 2 and sp 3 C-O bond functionalisation with Pd-catalysis. Chem Commun (Camb) 2021; 57:11673-11676. [PMID: 34672313 PMCID: PMC8567294 DOI: 10.1039/d1cc05408b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The reaction of [{(ArNCMe)2CH}Al] (Ar = 2,6-di-iso-propylphenyl) with aryl methyl ethers proceeded with alumination of the sp3 C-O bond. The selectivity of this reaction could be switched by inclusion of a catalyst. In the presence of [Pd(PCy3)2], chemoselective sp2 C-O bond functionalisation was observed. Kinetic isotope experiments and DFT calculations support a catalytic pathway involving the ligand-assisted oxidative addition of the sp2 C-O bond to a Pd-Al intermetallic complex.
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Affiliation(s)
- Ryan K Brown
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, 82 Wood Lane, Shepherds Bush, London, W12 0BZ, UK.
| | - Thomas N Hooper
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, 82 Wood Lane, Shepherds Bush, London, W12 0BZ, UK.
| | - Feriel Rekhroukh
- BioISI - Biosystems & Integrative Sciences Institute, Faculty of Sciences, University of Lisboa, 1749-016 Lisboa, Portugal
| | - Andrew J P White
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, 82 Wood Lane, Shepherds Bush, London, W12 0BZ, UK.
| | - Paulo J Costa
- BioISI - Biosystems & Integrative Sciences Institute, Faculty of Sciences, University of Lisboa, 1749-016 Lisboa, Portugal
| | - Mark R Crimmin
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, 82 Wood Lane, Shepherds Bush, London, W12 0BZ, UK.
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3
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Talavera M, Braun T. Versatile Reaction Pathways of 1,1,3,3,3-Pentafluoropropene at Rh(I) Complexes [Rh(E)(PEt 3 ) 3 ] (E=H, GePh 3 , Si(OEt) 3 , F, Cl): C-F versus C-H Bond Activation Steps. Chemistry 2021; 27:11926-11934. [PMID: 34118095 PMCID: PMC8456946 DOI: 10.1002/chem.202101508] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Indexed: 11/08/2022]
Abstract
The reaction of the rhodium(I) complexes [Rh(E)(PEt3)3] (E=GePh3 (1), H (6), F (7)) with 1,1,3,3,3‐pentafluoropropene afforded the defluorinative germylation products Z/E‐2‐(triphenylgermyl)‐1,3,3,3‐tetrafluoropropene and the fluorido complex [Rh(F)(CF3CHCF2)(PEt3)2] (2) together with the fluorophosphorane E‐(CF3)CH=CF(PFEt3). For [Rh(Si(OEt)3)(PEt3)3] (4) the coordination of the fluoroolefin was found to give [Rh{Si(OEt)3}(CF3CHCF2)(PEt3)2] (5). Two equivalents of complex 2 reacted further by C−F bond oxidative addition to yield [Rh(CF=CHCF3)(PEt3)2(μ‐F)3Rh(CF3CHCF2)(PEt3)] (9). The role of the fluorido ligand on the reactivity of complex 2 was assessed by comparison with the analogous chlorido complex. The use of complexes 1, 4 and 6 as catalysts for the derivatization of 1,1,3,3,3‐pentafluoropropene provided products, which were generated by hydrodefluorination, hydrometallation and germylation reactions.
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Affiliation(s)
- Maria Talavera
- Department of Chemistry, Universität zu Berlin, Brook-Taylor Str. 2, 12489, Berlin, Germany
| | - Thomas Braun
- Department of Chemistry, Universität zu Berlin, Brook-Taylor Str. 2, 12489, Berlin, Germany
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4
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Charles RM, Brewster TP. H 2 and carbon-heteroatom bond activation mediated by polarized heterobimetallic complexes. Coord Chem Rev 2021; 433:213765. [PMID: 35418712 PMCID: PMC9004596 DOI: 10.1016/j.ccr.2020.213765] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The field of heterobimetallic chemistry has rapidly expanded over the last decade. In addition to their interesting structural features, heterobimetallic structures have been found to facilitate a range of stoichiometric bond activations and catalytic processes. The accompanying review summarizes advances in this area since January of 2010. The review encompasses well-characterized heterobimetallic complexes, with a particular focus on mechanistic details surrounding their reactivity applications.
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Affiliation(s)
- R Malcolm Charles
- Department of Chemistry, The University of Memphis, 3744 Walker Ave., Smith Chemistry Building, Memphis, TN 38152, United States
| | - Timothy P Brewster
- Department of Chemistry, The University of Memphis, 3744 Walker Ave., Smith Chemistry Building, Memphis, TN 38152, United States
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5
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Garçon M, Mun NW, White AJP, Crimmin MR. Palladium-Catalysed C-H Bond Zincation of Arenes: Scope, Mechanism, and the Role of Heterometallic Intermediates. Angew Chem Int Ed Engl 2021; 60:6145-6153. [PMID: 33275830 DOI: 10.1002/anie.202014960] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Indexed: 11/06/2022]
Abstract
Catalytic methods that transform C-H bonds into C-X bonds are of paramount importance in synthesis. A particular focus has been the generation of organoboranes, organosilanes and organostannanes from simple hydrocarbons (X=B, Si, Sn). Despite the importance of organozinc compounds (X=Zn), their synthesis by the catalytic functionalisation of C-H bonds remains unknown. Herein, we show that a palladium catalyst and zinc hydride reagent can be used to transform C-H bonds into C-Zn bonds. The new catalytic C-H zincation protocol has been applied to a variety of arenes-including fluoroarenes, heteroarenes, and benzene-with high chemo- and regioselectivity. A mechanistic study shows that heterometallic Pd-Zn complexes play a key role in catalysis. The conclusions of this work are twofold; the first is that valuable organozinc compounds are finally accessible by catalytic C-H functionalisation, the second is that heterometallic complexes are intimately involved in bond-making and bond-breaking steps of C-H functionalisation.
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Affiliation(s)
- Martí Garçon
- Molecular Sciences Research Hub, Imperial College London, White City Campus, 82 Wood Lane, Shepherds Bush, London, W12 0BZ, UK
| | - Nicolette Wee Mun
- Molecular Sciences Research Hub, Imperial College London, White City Campus, 82 Wood Lane, Shepherds Bush, London, W12 0BZ, UK
| | - Andrew J P White
- Molecular Sciences Research Hub, Imperial College London, White City Campus, 82 Wood Lane, Shepherds Bush, London, W12 0BZ, UK
| | - Mark R Crimmin
- Molecular Sciences Research Hub, Imperial College London, White City Campus, 82 Wood Lane, Shepherds Bush, London, W12 0BZ, UK
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6
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Curto SG, de las Heras LA, Esteruelas MA, Oliván M, Oñate E, Vélez A. Reactions of POP-pincer rhodium(I)-aryl complexes with small molecules: coordination flexibility of the ether diphosphine. CAN J CHEM 2021. [DOI: 10.1139/cjc-2020-0061] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Reactions of the aryl complexes Rh(aryl){κ3-P,O,P-[xant(PiPr2)2]} (1; aryl = 3,5-Me2C6H3 (a), C6H5 (b), 3,5-Cl2C6H3 (c), 3-FC6H4 (d); xant(PiPr2)2 = 9,9-dimethyl-4,5-bis-(diisopropylphosphino)xanthene) with O2, CO, and MeO2CC≡CCO2Me have been performed. Under 1 atm of O2, the pentane solutions of complexes 1 afford the dinuclear peroxide derivatives [Rh(aryl){κ2-P,P-xant(PiPr2)2}]2(μ-O2)2 (2a–2d) as yellow solids. In solution, these species are unstable. In dichloromethane, at room temperature, they are transformed into the dioxygen adducts Rh(aryl)(η2-O2){κ3-P,O,P-[xant(PiPr2)2]} (3a–3d), as a result of the rupture of the double peroxide bridge and the reduction of the metal center. Complex 3b decomposes in benzene, at 50 °C, to give diphosphine oxide, phenol, and biphenyl. Complexes 1 react with CO to give the square-planar mono carbonyl derivatives Rh(aryl)(CO){κ2-P,P-[xant(PiPr2)2]} (4a–4d), which under carbon monoxide atmosphere evolve to benzoyl species Rh{C(O)aryl}(CO){κ2-P,P-[xant(PiPr2)2]} (5a–5d), resulting from the migratory insertion of CO into the Rh-aryl bond and the coordination of a second CO molecule. The transformation is reversible; under vacuum, complexes 5 regenerate the precursors 4. The addition of the activated alkyne to complexes 1b and 1d initially leads to the π-alkyne intermediates Rh(aryl){η2-C(CO2Me)≡C(CO2Me)}{κ3-P,O,P-[xant(PiPr2)2]} (6b, 6d), which evolve to the alkenyl derivatives Rh{(E)-C(CO2Me)=C(CO2Me)aryl}{κ3-P,O,P-[xant(PiPr2)2]} (7b, 7d). The diphosphine adapts its coordination mode to the stability requirements of the different complexes, coordinating cis-κ2-P,P in complexes 2, fac-κ3-P,O,P in compounds 3, trans-κ2-P,P in the mono carbonyl derivatives 4 and 5, and mer-κ3-P,O,P in products 6 and 7.
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Affiliation(s)
- Sheila G. Curto
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
| | - Laura A. de las Heras
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
| | - Miguel A. Esteruelas
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
| | - Montserrat Oliván
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
| | - Enrique Oñate
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
| | - Andrea Vélez
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Zaragoza, CSIC, 50009 Zaragoza, Spain
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7
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Garçon M, Mun NW, White AJP, Crimmin MR. Palladium‐Catalysed C−H Bond Zincation of Arenes: Scope, Mechanism, and the Role of Heterometallic Intermediates. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014960] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Martí Garçon
- Molecular Sciences Research Hub Imperial College London White City Campus, 82 Wood Lane, Shepherds Bush London W12 0BZ UK
| | - Nicolette Wee Mun
- Molecular Sciences Research Hub Imperial College London White City Campus, 82 Wood Lane, Shepherds Bush London W12 0BZ UK
| | - Andrew J. P. White
- Molecular Sciences Research Hub Imperial College London White City Campus, 82 Wood Lane, Shepherds Bush London W12 0BZ UK
| | - Mark R. Crimmin
- Molecular Sciences Research Hub Imperial College London White City Campus, 82 Wood Lane, Shepherds Bush London W12 0BZ UK
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8
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Fujii I, Semba K, Li QZ, Sakaki S, Nakao Y. Magnesiation of Aryl Fluorides Catalyzed by a Rhodium–Aluminum Complex. J Am Chem Soc 2020; 142:11647-11652. [DOI: 10.1021/jacs.0c04905] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Ikuya Fujii
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kazuhiko Semba
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Qiao-Zhi Li
- Fukui Institute for Fundamental Chemistry, Kyoto University, Sakyo-ku, Kyoto 606-8103, Japan
| | - Shigeyoshi Sakaki
- Fukui Institute for Fundamental Chemistry, Kyoto University, Sakyo-ku, Kyoto 606-8103, Japan
| | - Yoshiaki Nakao
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
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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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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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11
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Curto SG, Esteruelas MA, Oliván M, Oñate E. Insertion of Diphenylacetylene into Rh–Hydride and Rh–Boryl Bonds: Influence of the Boryl on the Behavior of the β-Borylalkenyl Ligand. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00513] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Sheila G. Curto
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Zaragoza − CSIC, 50009 Zaragoza, Spain
| | - Miguel A. Esteruelas
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Zaragoza − CSIC, 50009 Zaragoza, Spain
| | - Montserrat Oliván
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Zaragoza − CSIC, 50009 Zaragoza, Spain
| | - Enrique Oñate
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Zaragoza − CSIC, 50009 Zaragoza, Spain
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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. [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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13
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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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14
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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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15
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16
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von Hahmann CN, Talavera M, Xu C, Braun T. Reactivity of 3,3,3-Trifluoropropyne at Rhodium Complexes: Development of Hydroboration Reactions. Chemistry 2018; 24:11131-11138. [PMID: 29791749 DOI: 10.1002/chem.201801662] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Indexed: 01/17/2023]
Affiliation(s)
- Cortney N von Hahmann
- 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
| | - Conghui Xu
- 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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17
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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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18
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Matsunami A, Kuwata S, Kayaki Y. Hydrogen Evolution from Formic Acid and Hydrodefluorination of Fluoroarenes by Bifunctional Iridium Catalysts—Beyond the Transfer Hydrogenation. J SYN ORG CHEM JPN 2018. [DOI: 10.5059/yukigoseikyokaishi.76.315] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Asuka Matsunami
- College of Science and Engineering, Aoyama Gakuin University
| | - Shigeki Kuwata
- School of Materials and Chemical Technology, Tokyo Institute of Technology
- PRESTO, Japan Science and Technology Agency (JST)
| | - Yoshihito Kayaki
- School of Materials and Chemical Technology, Tokyo Institute of Technology
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19
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Berg C, Braun T, Ahrens M, Wittwer P, Herrmann R. Activation of SF6
at Platinum Complexes: Formation of SF3
Derivatives and Their Application in Deoxyfluorination Reactions. Angew Chem Int Ed Engl 2017; 56:4300-4304. [DOI: 10.1002/anie.201612417] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Claudia Berg
- 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
| | - 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
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20
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Berg C, Braun T, Ahrens M, Wittwer P, Herrmann R. Activation of SF6
at Platinum Complexes: Formation of SF3
Derivatives and Their Application in Deoxyfluorination Reactions. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612417] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Claudia Berg
- 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
| | - 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
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21
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Chen J, Huang D, Ding Y. Rhodium-Catalyzedortho-Selective C-F Activation and Hydrodefluorination of Heterocycle-Substituted Polyfluoroarenes: Dominated by Phosphine Ligands. ChemistrySelect 2017. [DOI: 10.1002/slct.201601839] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jianping Chen
- The Key Laboratory of Food Colloids and Biotechnology; Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; 1800 Lihu Road Wuxi, Jiangsu Province 214122 China
| | - Dongyang Huang
- The Key Laboratory of Food Colloids and Biotechnology; Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; 1800 Lihu Road Wuxi, Jiangsu Province 214122 China
| | - Yuqiang Ding
- The Key Laboratory of Food Colloids and Biotechnology; Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; 1800 Lihu Road Wuxi, Jiangsu Province 214122 China
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22
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Ahrens T, Schmiedecke B, Braun T, Herrmann R, Laubenstein R. Activation of CS2and COS at a Rhodium(I) Germyl Complex: Generation of CS and Carbido Complexes. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201601122] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Theresia Ahrens
- Department of Chemistry; Humboldt-Universität zu Berlin; Brook-Taylor-Straße 2 12489 Berlin Germany
| | - Bastian Schmiedecke
- 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
| | - 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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23
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Affiliation(s)
- Joyce Y. Corey
- Department of Chemistry and
Biochemistry, University of Missouri—St. Louis, One University
Drive, St. Louis, Missouri 63121, United States
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24
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Kameo H, Ikeda K, Bourissou D, Sakaki S, Takemoto S, Nakazawa H, Matsuzaka H. Transition-Metal-Mediated Germanium–Fluorine Activation: Inverse Electron Flow in σ-Bond Metathesis. Organometallics 2016. [DOI: 10.1021/acs.organomet.5b01000] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hajime Kameo
- Department
of Chemistry, Graduate School of Science, Osaka Prefecture University, Gakuen-cho 1-1, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Koki Ikeda
- Department
of Chemistry, Graduate School of Science, Osaka Prefecture University, Gakuen-cho 1-1, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Didier Bourissou
- UPS,
Laboratoire Hétérochimie Fondamentale Appliquée, Université de Toulouse, 118 Route de Narbonne, F-31062 Toulouse, France
- CNRS, LHFA UMR 5069, F-31062 Toulouse, France
| | - Shigeyoshi Sakaki
- Fukui
Institute for Fundamental Chemistry, Kyoto University, Takano-nishihiraki-cho
34-4, Sakyo-ku, Kyoto 606-8103, Japan
| | - Shin Takemoto
- Department
of Chemistry, Graduate School of Science, Osaka Prefecture University, Gakuen-cho 1-1, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Hiroshi Nakazawa
- Department
of Chemistry, Graduate School of Science, Osaka City University, Sugimoto 3-3-138, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Hiroyuki Matsuzaka
- Department
of Chemistry, Graduate School of Science, Osaka Prefecture University, Gakuen-cho 1-1, Naka-ku, Sakai, Osaka 599-8531, Japan
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25
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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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26
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Kameo H, Kawamoto T, Sakaki S, Bourissou D, Nakazawa H. Transition-Metal-Mediated Cleavage of Fluoro-Silanes under Mild Conditions. Chemistry 2016; 22:2370-5. [DOI: 10.1002/chem.201504455] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Indexed: 01/06/2023]
Affiliation(s)
- Hajime Kameo
- Department of Chemistry; Graduate School of Science; Osaka Prefecture University; Gakuen-cho 1-1, Naka-ku, Sakai Osaka 599-8531 Japan
| | - Tatsuya Kawamoto
- Department of Chemistry; Graduate School of Science; Osaka City University; Sugimoto 3-3-138, Sumiyoshi-ku Osaka 558-8585 Japan
| | - Shigeyoshi Sakaki
- Fukui Institute for Fundamental Chemistry; Kyoto University, Takano-nishihiraki-cho 34-4, Sakyo-ku; Kyoto 606-8103 Japan
| | - Didier Bourissou
- Laboratoire Hétérochimie Fondamentale et Appliquée; Universit Paul Sabatier/CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex 09 France
| | - Hiroshi Nakazawa
- Department of Chemistry; Graduate School of Science; Osaka City University; Sugimoto 3-3-138, Sumiyoshi-ku Osaka 558-8585 Japan
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27
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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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28
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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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29
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Liu X, Wang Z, Zhao X, Fu X. Light induced catalytic hydrodefluorination of perfluoroarenes by porphyrin rhodium. Inorg Chem Front 2016. [DOI: 10.1039/c5qi00269a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photocatalytic hydrodefluorination of a series of perfluoroarenes by rhodium porphyrin complexes was described. The key intermediate (por)Rh-C6F4R underwent fast photo-cleavage of Rh–C bonds to produce hydrodefluorination products.
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Affiliation(s)
- Xu Liu
- Beijing National Laboratory for Molecular Sciences
- State Key Lab of Rare Earth Materials Chemistry and Applications
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing
| | - Zikuan Wang
- Beijing National Laboratory for Molecular Sciences
- State Key Lab of Rare Earth Materials Chemistry and Applications
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing
| | - Xianyuan Zhao
- Beijing National Laboratory for Molecular Sciences
- State Key Lab of Rare Earth Materials Chemistry and Applications
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing
| | - Xuefeng Fu
- Beijing National Laboratory for Molecular Sciences
- State Key Lab of Rare Earth Materials Chemistry and Applications
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing
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30
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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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31
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Sperger T, Sanhueza IA, Kalvet I, Schoenebeck F. Computational Studies of Synthetically Relevant Homogeneous Organometallic Catalysis Involving Ni, Pd, Ir, and Rh: An Overview of Commonly Employed DFT Methods and Mechanistic Insights. Chem Rev 2015. [PMID: 26207572 DOI: 10.1021/acs.chemrev.5b00163] [Citation(s) in RCA: 410] [Impact Index Per Article: 45.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Theresa Sperger
- Institute of Organic Chemistry, RWTH Aachen University , Landoltweg 1, 52074 Aachen, Germany
| | - Italo A Sanhueza
- Institute of Organic Chemistry, RWTH Aachen University , Landoltweg 1, 52074 Aachen, Germany.,Laboratory of Organic Chemistry, ETH Zürich , Vladimir-Prelog-Weg 3, 8093 Zürich, Switzerland
| | - Indrek Kalvet
- Institute of Organic Chemistry, RWTH Aachen University , Landoltweg 1, 52074 Aachen, Germany
| | - Franziska Schoenebeck
- Institute of Organic Chemistry, RWTH Aachen University , Landoltweg 1, 52074 Aachen, Germany
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32
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Zámostná L, Sander S, Braun T, Laubenstein R, Braun B, Herrmann R, Kläring P. Synthesis and structure of rhodium(i) silyl carbonyl complexes: photochemical C-F and C-H bond activation of fluorinated aromatic compounds. Dalton Trans 2015; 44:9450-69. [PMID: 25915856 DOI: 10.1039/c5dt00819k] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The rhodium(i) silyl carbonyl complexes [Rh{Si(OEt)3}(CO)(dippp)] () and [Rh{Si(OEt)3}(CO)(dippe)] () (dippp = 1,3-bis(diisopropylphosphino)propane, dippe = 1,2-bis-(diisopropylphosphino)ethane) were synthesized on treatment of the methyl compounds [Rh(CH3)(CO)(dippp)] () or [Rh(CH3)(CO)(dippe)] () with HSi(OEt)3 at low temperature. The methyl complexes and were prepared starting from the binuclear complexes [{Rh(μ-Cl)(dippp)}2] () and [{Rh(μ-Cl)(dippe)}2] (), respectively. The silyl complexes and as well as the precursors [{Rh(μ-I)(dippp)}2] (), [Rh(X)(CO)(dippp)] (: X = CH3, : X = I) and [Rh(X)(CO)(dippe)] (: X = CH3, : X = Cl) were characterized by NMR and IR spectroscopy and the structures in the solid state were determined by X-ray crystallography. The silyl complex converts into the carbonyl-bridged complex [{Rh(μ-CO)(dippp)}2] () above temperatures of -30 °C by loss of the silyl ligand, whereas is more thermally stable and a reaction to the binuclear complex [{Rh(μ-CO)(dippe)}2] () was observed at 50 °C. The silyl complex reacted under irradiation with hexafluorobenzene and pentafluoropyridine to give the C-F activation products [Rh(C6F5)(CO)(dippe)] () and [Rh(2-C5F4N)(CO)(dippe)] (), respectively. As additional products the silyl dicarbonyl complex [Rh{Si(OEt)3}(CO)2(dippe)] () and the cationic complex [Rh2(μ-H)(μ-CO)2(dippe)2](+)[SiF5](-) () were identified. Compound was synthesized independently by treatment of with gaseous CO. In a similar manner, the dippp analogue [Rh{Si(OEt)3}(CO)2(dippp)] () was also prepared starting from . Photochemical reaction of with pentafluorobenzene and 2,3,5,6-tetrafluoropyridine resulted selectively in C-H bond activation to afford and [Rh(4-C5F4N)(CO)(dippe)] (), respectively.
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Affiliation(s)
- Lada Zámostná
- Humboldt-Universität zu Berlin, Department of Chemistry, Brook-Taylor-Straße 2, D-12489 Berlin, Germany.
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33
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Raza AL, Braun T. Consecutive C-F bond activation and C-F bond formation of heteroaromatics at rhodium: the peculiar role of FSi(OEt) 3. Chem Sci 2015; 6:4255-4260. [PMID: 29218192 PMCID: PMC5707480 DOI: 10.1039/c5sc00877h] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 05/09/2015] [Indexed: 01/09/2023] Open
Abstract
C-F activation of 2,3,5,6-tetrafluoropyridine at [Rh{Si(OEt)3}(PEt3)3] (1) yields [Rh{2-(3,5,6-C5F3HN)}(PEt3)3] (2) and FSi(OEt)3, but in an unprecedented consecutive reaction FSi(OEt)3 acts as a fluoride source to give [Rh(4-C5F4N)(PEt3)3] (4) by regeneration of the C-F bond and C-H activation. Analogous refluorination steps were observed for other 2-pyridyl rhodium complexes. NMR spectroscopic studies revealed a delicate balance between the feasibility for C-F bond formation accompanied by a C-H activation and the occurrence of competing reactions such as hydrodefluorinations induced by the intermediary presence of H2.
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Affiliation(s)
- A L Raza
- Humboldt-Universität zu Berlin , Department of Chemistry , Brook-Taylor-Straße 2 , 12489 Berlin , Germany .
| | - T Braun
- Humboldt-Universität zu Berlin , Department of Chemistry , Brook-Taylor-Straße 2 , 12489 Berlin , Germany .
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34
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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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35
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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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36
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Kinuta H, Tobisu M, Chatani N. Rhodium-Catalyzed Borylation of Aryl 2-Pyridyl Ethers through Cleavage of the Carbon–Oxygen Bond: Borylative Removal of the Directing Group. J Am Chem Soc 2015; 137:1593-600. [DOI: 10.1021/ja511622e] [Citation(s) in RCA: 116] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Hirotaka Kinuta
- Department
of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Mamoru Tobisu
- Center
for Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Osaka 565-0871, Japan
| | - Naoto Chatani
- Department
of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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37
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Procacci B, Jiao Y, Evans ME, Jones WD, Perutz RN, Whitwood AC. Activation of B–H, Si–H, and C–F Bonds with Tp′Rh(PMe3) Complexes: Kinetics, Mechanism, and Selectivity. J Am Chem Soc 2015; 137:1258-72. [DOI: 10.1021/ja5113172] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
| | - Yunzhe Jiao
- Department
of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Meagan E. Evans
- Department
of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - William D. Jones
- Department
of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Robin N. Perutz
- Department
of Chemistry, University of York, York YO10 5DD, U.K
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38
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39
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Drover MW, Schafer LL, Love JA. Isocyanate deinsertion from κ1-O amidates: facile access to perfluoroaryl rhodium(i) complexes. Dalton Trans 2015; 44:19487-93. [DOI: 10.1039/c5dt01981h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Perfluorophenyl-subsituted amidates undergo unprecedented C6F5 migration to Rh(i) on heating, providing a new route to Rh-C6F5 organometallic fragments.
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Affiliation(s)
- Marcus W. Drover
- Department of Chemistry
- The University of British Columbia
- Vancouver
- Canada
| | - Laurel L. Schafer
- Department of Chemistry
- The University of British Columbia
- Vancouver
- Canada
| | - Jennifer A. Love
- Department of Chemistry
- The University of British Columbia
- Vancouver
- Canada
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40
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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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41
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Schwartsburd L, Mahon MF, Poulten RC, Warren MR, Whittlesey MK. Mechanistic Studies of the Rhodium NHC Catalyzed Hydrodefluorination of Polyfluorotoluenes. Organometallics 2014. [DOI: 10.1021/om500827d] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Leonid Schwartsburd
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2
7AY, U.K
| | - Mary F. Mahon
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2
7AY, U.K
| | - Rebecca C. Poulten
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2
7AY, U.K
| | - Mark R. Warren
- Station I19, Diamond Lightsource Ltd., Harwell Science
and Innovation Campus, Didcot OX11 ODE, U.K
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42
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Weaver J, Senaweera S. C–F activation and functionalization of perfluoro- and polyfluoroarenes. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.06.004] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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43
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Kalläne SI, Braun T. Catalytic borylation of SCF₃-functionalized arenes by rhodium(I) boryl complexes: regioselective C-H activation at the ortho-position. Angew Chem Int Ed Engl 2014; 53:9311-5. [PMID: 25088814 DOI: 10.1002/anie.201406424] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Indexed: 01/21/2023]
Abstract
An unprecedented reaction pathway for the borylation of SCF3-containing arenes using [Rh(Bpin)(PEt3)3] (pin=pinacolato) is reported. Catalytic processes were developed and the functionalizations proceed under mild reaction conditions. The C-H activations occur with a unique regioselectivity for the position ortho to the SCF3 group, which apparently serves as directing group. Borylated SCF3 compounds can serve as versatile building blocks.
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Affiliation(s)
- Sabrina I Kalläne
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489 Berlin (Germany)
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44
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Kalläne SI, Braun T. Catalytic Borylation of SCF3-Functionalized Arenes by Rhodium(I) Boryl Complexes: Regioselective CH Activation at theortho-Position. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406424] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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45
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Meier G, Steck V, Braun B, Eißler A, Herrmann R, Ahrens M, Laubenstein R, Braun T. Synthesis and Structures of Fluorinated (β‐Diketiminato)rhodium Complexes: Si–H Activation of Silanes at a Carbonyl Complex. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402087] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Gregor Meier
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, http://www2.hu‐berlin.de/chemie/braun/
| | - Viktoria Steck
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, http://www2.hu‐berlin.de/chemie/braun/
| | - Beatrice Braun
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, http://www2.hu‐berlin.de/chemie/braun/
| | - Anna Eißler
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, http://www2.hu‐berlin.de/chemie/braun/
| | - Roy Herrmann
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, http://www2.hu‐berlin.de/chemie/braun/
| | - Mike Ahrens
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, http://www2.hu‐berlin.de/chemie/braun/
| | - Reik Laubenstein
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, http://www2.hu‐berlin.de/chemie/braun/
| | - Thomas Braun
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, http://www2.hu‐berlin.de/chemie/braun/
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46
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Li J, Zhang D, Sun H, Li X. Computational rationalization of the selective C–H and C–F activations of fluoroaromatic imines and ketones by cobalt complexes. Org Biomol Chem 2014; 12:1897-907. [DOI: 10.1039/c3ob42384k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The selective C–H and C–F activations of fluoroaromatic imines and ketones by cobalt complexes have been rationalized well by performing DFT calculations.
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Affiliation(s)
- Jingjing Li
- Key Lab of Colloid and Interface Chemistry
- Ministry of Education
- Institute of Theoretical Chemistry
- Shandong University
- Jinan, P. R. China
| | - Dongju Zhang
- Key Lab of Colloid and Interface Chemistry
- Ministry of Education
- Institute of Theoretical Chemistry
- Shandong University
- Jinan, P. R. China
| | - Hongjian Sun
- Key Lab of Colloid and Interface Chemistry
- Ministry of Education
- Institute of Theoretical Chemistry
- Shandong University
- Jinan, P. R. China
| | - Xiaoyan Li
- Key Lab of Colloid and Interface Chemistry
- Ministry of Education
- Institute of Theoretical Chemistry
- Shandong University
- Jinan, P. R. China
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47
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Kalläne SI, Braun T, Braun B, Mebs S. Versatile reactivity of a rhodium(i) boryl complex towards ketones and imines. Dalton Trans 2014; 43:6786-801. [DOI: 10.1039/c4dt00080c] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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48
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Teltewskoi M, Kalläne SI, Braun T, Herrmann R. Synthesis of Rhodium(I) Boryl Complexes: Catalytic N-H Activation of Anilines and Ammonia. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300972] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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49
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50
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Kläring P, Braun T. Insertion of CS2into Iridium-Fluorine Bonds. Angew Chem Int Ed Engl 2013; 52:11096-101. [DOI: 10.1002/anie.201305106] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Indexed: 01/22/2023]
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