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Takahashi K, Ano Y, Chatani N. Fluoride anion-initiated bis-trifluoromethylation of phenyl aromatic carboxylates with (trifluoromethyl)trimethylsilane. Chem Commun (Camb) 2020; 56:11661-11664. [PMID: 33000827 DOI: 10.1039/d0cc04826g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The fluoride anion-initiated reaction of phenyl aromatic carboxylates with (trifluoromethyl)trimethylsilane (Me3SiCF3) that results in the formation of O-silyl-protected 2-aryl-1,1,1,3,3,3-hexafluoroisopropanols is reported. A phenoxide anion, generated during the trifluoromethylation of the phenyl carboxylate, also activates the Me3SiCF3, which permits a catalytic amount of the fluoride anion source to be used. Various functional groups, which can be used for further elaboration, are tolerated in the reaction.
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Affiliation(s)
- Kenjiro Takahashi
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan.
| | - Yusuke Ano
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan. and Center for Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University, 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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DeWeerd NJ, Bukovsky EV, Castro KP, Kuvychko IV, Popov AA, Strauss SH, Boltalina OV. Steric and electronic effects of CF3 conformations in acene(CF3) derivatives. J Fluor Chem 2019. [DOI: 10.1016/j.jfluchem.2019.02.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Domino K, Veryser C, Wahlqvist BA, Gaardbo C, Neumann KT, Daasbjerg K, De Borggraeve WM, Skrydstrup T. Direct Access to Aryl Bis(trifluoromethyl)carbinols from Aryl Bromides or Fluorosulfates: Palladium-Catalyzed Carbonylation. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802647] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Katrine Domino
- Carbon Dioxide Activation Center (CADIAC), Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO); Aarhus University; Gustav Wieds Vej 14 8000 Aarhus C Denmark
| | - Cedrick Veryser
- Carbon Dioxide Activation Center (CADIAC), Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO); Aarhus University; Gustav Wieds Vej 14 8000 Aarhus C Denmark
- Molecular Design and Synthesis; Department of Chemistry; KU Leuven; 3001 Leuven Belgium
| | - Benjamin A. Wahlqvist
- Carbon Dioxide Activation Center (CADIAC), Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO); Aarhus University; Gustav Wieds Vej 14 8000 Aarhus C Denmark
| | - Cecilie Gaardbo
- Carbon Dioxide Activation Center (CADIAC), Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO); Aarhus University; Gustav Wieds Vej 14 8000 Aarhus C Denmark
| | - Karoline T. Neumann
- Carbon Dioxide Activation Center (CADIAC), Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO); Aarhus University; Gustav Wieds Vej 14 8000 Aarhus C Denmark
| | - Kim Daasbjerg
- Carbon Dioxide Activation Center (CADIAC), Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO); Aarhus University; Gustav Wieds Vej 14 8000 Aarhus C Denmark
| | - Wim M. De Borggraeve
- Molecular Design and Synthesis; Department of Chemistry; KU Leuven; 3001 Leuven Belgium
| | - Troels Skrydstrup
- Carbon Dioxide Activation Center (CADIAC), Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO); Aarhus University; Gustav Wieds Vej 14 8000 Aarhus C Denmark
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Domino K, Veryser C, Wahlqvist BA, Gaardbo C, Neumann KT, Daasbjerg K, De Borggraeve WM, Skrydstrup T. Direct Access to Aryl Bis(trifluoromethyl)carbinols from Aryl Bromides or Fluorosulfates: Palladium-Catalyzed Carbonylation. Angew Chem Int Ed Engl 2018; 57:6858-6862. [DOI: 10.1002/anie.201802647] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 04/14/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Katrine Domino
- Carbon Dioxide Activation Center (CADIAC), Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO); Aarhus University; Gustav Wieds Vej 14 8000 Aarhus C Denmark
| | - Cedrick Veryser
- Carbon Dioxide Activation Center (CADIAC), Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO); Aarhus University; Gustav Wieds Vej 14 8000 Aarhus C Denmark
- Molecular Design and Synthesis; Department of Chemistry; KU Leuven; 3001 Leuven Belgium
| | - Benjamin A. Wahlqvist
- Carbon Dioxide Activation Center (CADIAC), Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO); Aarhus University; Gustav Wieds Vej 14 8000 Aarhus C Denmark
| | - Cecilie Gaardbo
- Carbon Dioxide Activation Center (CADIAC), Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO); Aarhus University; Gustav Wieds Vej 14 8000 Aarhus C Denmark
| | - Karoline T. Neumann
- Carbon Dioxide Activation Center (CADIAC), Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO); Aarhus University; Gustav Wieds Vej 14 8000 Aarhus C Denmark
| | - Kim Daasbjerg
- Carbon Dioxide Activation Center (CADIAC), Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO); Aarhus University; Gustav Wieds Vej 14 8000 Aarhus C Denmark
| | - Wim M. De Borggraeve
- Molecular Design and Synthesis; Department of Chemistry; KU Leuven; 3001 Leuven Belgium
| | - Troels Skrydstrup
- Carbon Dioxide Activation Center (CADIAC), Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO); Aarhus University; Gustav Wieds Vej 14 8000 Aarhus C Denmark
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Lenormand H, Corcé V, Sorin G, Chhun C, Chamoreau LM, Krim L, Zins EL, Goddard JP, Fensterbank L. Versatile Access to Martin’s Spirosilanes and Their Hypervalent Derivatives. J Org Chem 2015; 80:3280-8. [DOI: 10.1021/jo5028497] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hugo Lenormand
- Sorbonne Universités UPMC Universite Paris 06, UMR CNRS 8232, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, CC 229, F-75005 Paris, France
| | - Vincent Corcé
- Sorbonne Universités UPMC Universite Paris 06, UMR CNRS 8232, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, CC 229, F-75005 Paris, France
| | - Geoffroy Sorin
- Sorbonne Universités UPMC Universite Paris 06, UMR CNRS 8232, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, CC 229, F-75005 Paris, France
| | - Christine Chhun
- Sorbonne Universités UPMC Universite Paris 06, UMR CNRS 8232, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, CC 229, F-75005 Paris, France
| | - Lise-Marie Chamoreau
- Sorbonne Universités UPMC Universite Paris 06, UMR CNRS 8232, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, CC 229, F-75005 Paris, France
| | - Lahouari Krim
- Sorbonne Universités, UPMC Universite Paris 06, UMR CNRS 8233, MONARIS, 4 place Jussieu, CC 49, F-75005 Paris, France
| | - Emilie-Laure Zins
- Sorbonne Universités, UPMC Universite Paris 06, UMR CNRS 8233, MONARIS, 4 place Jussieu, CC 49, F-75005 Paris, France
| | - Jean-Philippe Goddard
- Sorbonne Universités UPMC Universite Paris 06, UMR CNRS 8232, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, CC 229, F-75005 Paris, France
| | - Louis Fensterbank
- Sorbonne Universités UPMC Universite Paris 06, UMR CNRS 8232, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, CC 229, F-75005 Paris, France
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Bartolomé C, Villafañe F, Martín-Alvarez JM, Martínez-Ilarduya JM, Espinet P. [Pd(Fmes)2(tmeda)]: A Case of Intermittent CH⋅⋅⋅FC Hydrogen-Bond Interaction in Solution. Chemistry 2013; 19:3702-9. [DOI: 10.1002/chem.201203512] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Indexed: 11/08/2022]
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Takemura H, Kaneko M, Sako K, Iwanaga T. The intramolecular C–F⋯HO hydrogen bond of 2-fluorophenyldiphenylmethanol. NEW J CHEM 2009. [DOI: 10.1039/b902203a] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bartolomé C, Espinet P, Martín-Alvarez JM. Is there any bona fide example of O–H⋯F–C bond in solution? The cases of HOC(CF3)2(4-X-2,6-C6H2(CF3)2) (X = Si(i-Pr)3, CF3). Chem Commun (Camb) 2007:4384-6. [DOI: 10.1039/b710304b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kareev IE, Quiñones GS, Kuvychko IV, Khavrel PA, Ioffe IN, Goldt IV, Lebedkin SF, Seppelt K, Strauss SH, Boltalina OV. Variable-Temperature 19F NMR and Theoretical Study of 1,9- and 1,7-C60F(CF3) and Cs- and C1-C60F17(CF3): Hindered CF3 Rotation and Through-Space JFF Coupling. J Am Chem Soc 2005; 127:11497-504. [PMID: 16089480 DOI: 10.1021/ja051954y] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Milligram amounts of the new compounds 1,9- and 1,7-C60F(CF3) (ca. 85:15 mixture of isomers) and C60F3(CF3) were isolated from a high-temperature C60/K2PtF6 reaction mixture and purified to 98 mol % compositional purity by two-dimensional high-performance liquid chromatography using Buckyprep and Buckyclutcher columns. The previously observed compounds C60F5(CF3) and C60F7(CF3) were also purified to 90+ mol % for the first time. Variable-temperature 19F NMR spectra of the mixture of C60F(CF3) isomers and the previously reported mixture of C(s)- and C1-C60F17(CF3) isomers demonstrate for the first time that fullerene(F)n(CF3)m derivatives with adjacent F and CF3 substituents exhibit slow-exchange limit hindered CF3 rotation spectra at -40 +/- 10 degrees C. The experimental and density functional theory (DFT) predicted deltaH++ values for CF3 rotation in 1,9-C60F(CF3) are 46.8(7) and 46 kJ mol(-1), respectively. The DFT-predicted deltaH++ values for 1,7-C60F(CF3), C(s)-C60F17(CF3), and C1-C60F17(CF3) are 20, 44, and 54 kJ mol(-1), respectively. The (> or = 4)J(FF) values from the slow-exchange-limit 19F spectra, which vary from ca. 0 to 48(1) Hz, show that the dominant nuclear spin-spin coupling mechanism is through-space coupling (i.e., direct overlap of fluorine atom lone-pair orbitals) rather than coupling through the sigma-bond framework. The 2J(FF) values within the CF3 groups vary from 107(1) to 126(1) Hz. Collectively, the NMR data provide an unambiguous set of (> or = 4)J(FF) values for three different compounds that can be correlated with DFT-predicted or X-ray diffraction derived distances and angles and an unambiguous set of 2J(FF) values that can serve as an internal standard for all future J(FF) calculations.
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Affiliation(s)
- Ivan E Kareev
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka 142432 Russia
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Kareev IE, Kuvychko IV, Lebedkin SF, Miller SM, Anderson OP, Seppelt K, Strauss SH, Boltalina OV. Synthesis, Structure, and 19F NMR Spectra of 1,3,7,10,14,17,23,28,31,40-C60(CF3)10. J Am Chem Soc 2005; 127:8362-75. [PMID: 15941270 DOI: 10.1021/ja050305j] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A significant improvement in the selectivity of fullerene trifluoromethylation reactions was achieved. Reaction of trifluoroiodomethane with [60]fullerene at 460 degrees C and [70]fullerene at 470 degrees C in a flow reactor led to isolation of cold-zone-condensed mixtures of C60(CF3)n and C70(CF3)n compounds with narrow composition ranges: 6 < or = n < or = 12 for C(60)(CF3)n and 8 < or = n < or = 14 for C70(CF3)n. The predominant products in the C(60) reaction, an estimated 40+ mol % of the cold-zone condensate, were three isomers of C60(CF3)10. Two of these were purified by two-stage HPLC to 80+% isomeric purity. The third isomer was purified by three-stage HPLC to 95% isomeric purity. Thirteen milligrams of this orange-brown compound was isolated (5% overall yield based on C60, and its C1-symmetric structure was determined to be 1,3,7,10,14,17,23,28,31,40-C60(CF3)10 by X-ray crystallography. The CF3 groups are either meta or para to one another on a p-m-p-p-p-m-p-m-p ribbon of edge-sharing C6(CF3)2 hexagons (each pair of adjacent hexagons shares a common CF3 group). The selectivity of the C70 reaction was even higher. The predominant product was a single C70(CF3)10 isomer representing >40 mol % of the cold-zone condensate. Single-stage HPLC led to the isolation of 12 mg of this brown compound in 95% isomeric purity (27% overall yield based on converted C70. The new compounds were characterized by EI or S(8)-MALDI mass spectrometry and 2D-COSY 19F NMR spectroscopy. The NMR data demonstrate that through-space coupling via direct overlap of fluorine orbitals is the predominant contribution to J(FF) values in these and most other fullerene(CF3)n compounds.
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Affiliation(s)
- Ivan E Kareev
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka 142432, Russia
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Goryunkov AA, Kuvychko IV, Ioffe IN, Dick DL, Sidorov LN, Strauss SH, Boltalina OV. Isolation of C60(CF3)n (n = 2, 4, 6, 8, 10) with high compositional purity. J Fluor Chem 2003. [DOI: 10.1016/s0022-1139(03)00173-8] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Fei Z, Fischer AK, Edelmann FT. Synthesis and structural characterization of a sterically crowded acylguanidinate: RFC(O)NC(NMe2)2 (RF 2,4,6-tris(trifluoromethyl)phenyl). J Fluor Chem 2003. [DOI: 10.1016/s0022-1139(02)00337-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Li H, Lee GH, Peng SM. The first one-dimensional coordination polymer containing O–H⋯F–Ni hydrogen bonding: crystal structure of [Ni3(dpa)4F2][Ni3(dpa)4(H2O)2](BF4)2·2CH3OH. INORG CHEM COMMUN 2003. [DOI: 10.1016/s1387-7003(02)00668-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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