1
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Luo YC, Wang MK, Yu LC, Zhang X. Nickel-Catalyzed Selective C(sp 2 )-F Bond Alkylation of Industrially Relevant Hydrofluoroolefin HFO-1234yf. Angew Chem Int Ed Engl 2023; 62:e202308690. [PMID: 37470697 DOI: 10.1002/anie.202308690] [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: 06/20/2023] [Revised: 07/18/2023] [Accepted: 07/19/2023] [Indexed: 07/21/2023]
Abstract
The selective transition-metal catalyzed C-F bond functionalization of inexpensive industrial fluorochemicals represents one of the most attractive approaches to valuable fluorinated compounds. However, the selective C(sp2 )-F bond carbofunctionalization of refrigerant hydrofluoroolefins (HFOs) remains challenging. Here, we report a nickel-catalyzed selective C(sp2 )-F bond alkylation of HFO-1234yf with alkylzinc reagents. The resulting 2-trifluoromethylalkenes can serve as a versatile synthon for diversified transformations, including the anti-Markovnikov type hydroalkylation and the synthesis of bioactive molecule analogues. Mechanistic studies reveal that lithium salt is essential to promote the oxidative addition of Ni0 (Ln ) to the C-F bond; the less electron-rich N-based ligands, such as bipyridine and pyridine-oxazoline, feature comparable or even higher oxidative addition rates than the electron-rich phosphine ligands; the strong σ-donating phosphine ligands, such as PMe3 , are detrimental to transmetallation, but the less electron-rich and bulky N-based ligands, such as pyridine-oxazoline, facilitate transmetallation and reductive elimination to form the final product.
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Affiliation(s)
- Yun-Cheng Luo
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, China
| | - Ming-Kuan Wang
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, China
| | - Ling-Chao Yu
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, China
| | - Xingang Zhang
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, China
- School of Chemistry and Material Sciences, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou, 310024, China
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2
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Dong J, Zhang S. Synthesis of 2,2,2‐Trifluoroethyl Oxazoles, Oxazolines and Furans via Alkyne Oxytrifluoromethylation. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901405] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jia‐Jia Dong
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi 214122 People's Republic of China
| | - Song‐Lin Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material EngineeringJiangnan University Wuxi 214122 People's Republic of China
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3
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Liu H, Ge L, Wang D, Chen N, Feng C. Photoredox‐Coupled F‐Nucleophilic Addition: Allylation of
gem
‐Difluoroalkenes. Angew Chem Int Ed Engl 2019; 58:3918-3922. [DOI: 10.1002/anie.201814308] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 01/18/2019] [Indexed: 11/12/2022]
Affiliation(s)
- Haidong Liu
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing Jiangsu 210009 P. R. China
| | - Liang Ge
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing Jiangsu 210009 P. R. China
| | - Ding‐Xing Wang
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing Jiangsu 210009 P. R. China
| | - Nan Chen
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing Jiangsu 210009 P. R. China
| | - Chao Feng
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing Jiangsu 210009 P. R. China
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4
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Liu H, Ge L, Wang D, Chen N, Feng C. Photoredox‐Coupled F‐Nucleophilic Addition: Allylation of
gem
‐Difluoroalkenes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814308] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Haidong Liu
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing Jiangsu 210009 P. R. China
| | - Liang Ge
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing Jiangsu 210009 P. R. China
| | - Ding‐Xing Wang
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing Jiangsu 210009 P. R. China
| | - Nan Chen
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing Jiangsu 210009 P. R. China
| | - Chao Feng
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing Jiangsu 210009 P. R. China
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5
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de Azambuja F, Lovrien SM, Ross P, Ambler BR, Altman RA. Catalytic One-Step Deoxytrifluoromethylation of Alcohols. J Org Chem 2019; 84:2061-2071. [PMID: 30632749 DOI: 10.1021/acs.joc.8b03072] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A new bench-stable trifluoromethylation reagent, phenyl bromodifluoroacetate, converts readily available alcohols to trifluoromethanes in a Cu-catalyzed deoxytrifluoromethylation reaction. This reaction streamlines access to target biologically active molecules, and should be useful for a variety of medicinal, agricultural, and materials chemists.
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Affiliation(s)
- Francisco de Azambuja
- Department of Medicinal Chemistry , The University of Kansas , Lawrence , Kansas 66045 , United States
| | - Sydney M Lovrien
- Department of Medicinal Chemistry , The University of Kansas , Lawrence , Kansas 66045 , United States
| | - Patrick Ross
- Department of Medicinal Chemistry , The University of Kansas , Lawrence , Kansas 66045 , United States
| | - Brett R Ambler
- Department of Medicinal Chemistry , The University of Kansas , Lawrence , Kansas 66045 , United States
| | - Ryan A Altman
- Department of Medicinal Chemistry , The University of Kansas , Lawrence , Kansas 66045 , United States
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6
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Orsi DL, Altman RA. Exploiting the unusual effects of fluorine in methodology. Chem Commun (Camb) 2018; 53:7168-7181. [PMID: 28503693 DOI: 10.1039/c7cc02341c] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Fluorination of organic molecules significantly impacts the basic physicochemical properties of small and large biologically active molecules, agrichemicals, and materials. Thus, the development of synthetic reactions to access these substructures is important for many applied fields of chemistry. However, these fluorine-induced perturbations of chemical properties can inhibit standard chemical transformations, which provides unique challenges for synthetic organic chemists. In addition, the physicochemical properties imparted by fluorinated substituents can enable distinct reactivity patterns relative to non-fluorinated substrates, thus making synthetic organofluorine chemistry a fertile ground for developing new, exciting transformations. In this feature article, we detail our experiences in methodology, wherein fluorinated substrates have enabled unique reactivity patterns relative to non-fluorous substrates. Specifically, we highlight the non-standard chemo- and regio-selectivities imparted by fluorinated substrates on Pd-catalyzed coupling reactions, nucleophilic addition reactions of olefins, and Cu-catalyzed decarboxylative fluoroalkylation reactions.
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Affiliation(s)
- Douglas L Orsi
- Department of Medicinal Chemistry, The University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045, USA.
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7
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Li GB, Zhang C, Song C, Ma YD. Progress in copper-catalyzed trifluoromethylation. Beilstein J Org Chem 2018; 14:155-181. [PMID: 29441139 PMCID: PMC5789444 DOI: 10.3762/bjoc.14.11] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 01/04/2018] [Indexed: 11/23/2022] Open
Abstract
The introduction of trifluoromethyl groups into organic molecules has attracted great attention in the past five years. In this review, we describe the recent efforts in the development of trifluoromethylation via copper catalysis using nucleophilic, electrophilic or radical trifluoromethylation reagents.
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Affiliation(s)
- Guan-bao Li
- School of Pharmaceutical sciences, Shandong University, 44 West Culture Road, Jinan 250012, PR China
| | - Chao Zhang
- School of Pharmaceutical sciences, Shandong University, 44 West Culture Road, Jinan 250012, PR China
| | - Chun Song
- School of Pharmaceutical sciences, Shandong University, 44 West Culture Road, Jinan 250012, PR China
| | - Yu-dao Ma
- Department of chemistry, Shandong University, 27 Shanda South Road, Jinan 250100, PR China
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8
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Gokada MR, Hunter R, Andrijevic A, Petersen WF, Samanta S, Venter G, Rees-Jones S. Quaternized α,α'-Amino Acids via Curtius Rearrangement of Substituted Malonate-Imidazolidinones. J Org Chem 2017; 82:10650-10658. [PMID: 28903002 DOI: 10.1021/acs.joc.7b01684] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
An efficient synthesis protocol is presented for accessing quaternized α-amino acids in chiral, nonracemic form via diastereoselective malonate alkylation followed by C- to N-transposition. The key stereodifferentiating step involves a diastereoselective alkylation of an α-monosubstituted malonate-imidazolidinone, which is followed first by a chemoselective malonate PMB ester removal and then a Curtius rearrangement to provide the transposition. The method demonstrates a high product ee (89-99% for eight cases) for quaternizing a range of proteinogenic α-amino acids. The stereogenicity in targets 5a-i supports previous conclusions that the diastereoselective alkylation step proceeds via an α-substituted malonate-imidazolidinone enolate in its Z-configuration, with the auxiliary in an s-transC-N conformation.
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Affiliation(s)
- Maheswara Rao Gokada
- Department of Chemistry, University of Cape Town , Rondebosch 7701, South Africa
| | - Roger Hunter
- Department of Chemistry, University of Cape Town , Rondebosch 7701, South Africa
| | - Ana Andrijevic
- Department of Chemistry, University of Cape Town , Rondebosch 7701, South Africa
| | - Wade F Petersen
- Department of Chemistry, University of Cape Town , Rondebosch 7701, South Africa
| | - Sauvik Samanta
- Department of Chemistry, University of Cape Town , Rondebosch 7701, South Africa
| | - Gerhard Venter
- Department of Chemistry, University of Cape Town , Rondebosch 7701, South Africa
| | - Sophie Rees-Jones
- Department of Chemistry, University of Cape Town , Rondebosch 7701, South Africa
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9
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Tang H, Lin L, Feng C, Loh T. Palladium‐Catalyzed Fluoroarylation of
gem
‐Difluoroalkenes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/anie.201705321] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hai‐Jun Tang
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringJiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing Tech University 30 South Puzhu Road Nanjing 211816 P.R. China
| | - Ling‐Zhi Lin
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringJiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing Tech University 30 South Puzhu Road Nanjing 211816 P.R. China
| | - Chao Feng
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringJiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing Tech University 30 South Puzhu Road Nanjing 211816 P.R. China
| | - Teck‐Peng Loh
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University 21 Nanyang Link Singapore 637371 Singapore
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10
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Tang H, Lin L, Feng C, Loh T. Palladium‐Catalyzed Fluoroarylation of
gem
‐Difluoroalkenes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705321] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hai‐Jun Tang
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringJiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing Tech University 30 South Puzhu Road Nanjing 211816 P.R. China
| | - Ling‐Zhi Lin
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringJiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing Tech University 30 South Puzhu Road Nanjing 211816 P.R. China
| | - Chao Feng
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringJiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing Tech University 30 South Puzhu Road Nanjing 211816 P.R. China
| | - Teck‐Peng Loh
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University 21 Nanyang Link Singapore 637371 Singapore
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11
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Abstract
Metal-catalyzed decarboxylative fluoroalkylation reactions enable the conversion of simple O-based substrates into biologically relevant fluorinated analogs. Herein, we present decarboxylative methods that facilitate the synthesis of trifluoromethyl- and difluoroketone-containing products. We highlight key mechanistic aspects that are critical for efficient catalysis, and that inspired our thinking while developing the reactions.
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12
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Zhang C. Recent Developments in Trifluoromethylation or Difluoroalkylation by Use of Difluorinated Phosphonium Salts. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601011] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Cai Zhang
- Department of Architecture and Environment; Chongqing Vocational Institute of Safety Technology, Wanzhou District; Chongqing People's Republic of China
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13
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Rawner T, Knorn M, Lutsker E, Hossain A, Reiser O. Synthesis of Trifluoromethylated Sultones from Alkenols Using a Copper Photoredox Catalyst. J Org Chem 2016; 81:7139-47. [DOI: 10.1021/acs.joc.6b01001] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Thomas Rawner
- Institut
für Organische
Chemie, Universität Regensburg, Universitätsstr. 31, 93053 Regensburg, Germany
| | - Matthias Knorn
- Institut
für Organische
Chemie, Universität Regensburg, Universitätsstr. 31, 93053 Regensburg, Germany
| | - Eugen Lutsker
- Institut
für Organische
Chemie, Universität Regensburg, Universitätsstr. 31, 93053 Regensburg, Germany
| | - Asik Hossain
- Institut
für Organische
Chemie, Universität Regensburg, Universitätsstr. 31, 93053 Regensburg, Germany
| | - Oliver Reiser
- Institut
für Organische
Chemie, Universität Regensburg, Universitätsstr. 31, 93053 Regensburg, Germany
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14
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Nogami E, Washimi Y, Yamazaki T, Kubota T, Yajima T. Photoinduced double perfluoroalkylation of methylacenes. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.05.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Zhang PZ, Li CK, Zhang GY, Zhang L, Jiang YJ, Zou JP. Direct regioselective Csp2–H trifluoromethylation of pyrimidinones and pyridinones. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.04.048] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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16
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Zhang SL, Bie WF. Isolation and characterization of copper(iii) trifluoromethyl complexes and reactivity studies of aerobic trifluoromethylation of arylboronic acids. RSC Adv 2016. [DOI: 10.1039/c6ra10302b] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Novel phenCuIII–CF3 complexes, isolated purely and fully characterized, are highly reactive for aerobic trifluoromethylation of arylboronic acids.
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Affiliation(s)
- Song-Lin Zhang
- The Key Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Wen-Feng Bie
- The Key Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
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17
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Li JL, Yang XJ, Wang Y, Liu JT. Synthesis of trifluoromethylated compounds from alcohols via alkoxydiphenylphosphines. J Fluor Chem 2015. [DOI: 10.1016/j.jfluchem.2015.08.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Ambler BR, Zhu L, Altman RA. Copper-Catalyzed Synthesis of Trifluoroethylarenes from Benzylic Bromodifluoroacetates. J Org Chem 2015. [PMID: 26225803 DOI: 10.1021/acs.joc.5b01343] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Trifluoroethylarenes are found in a variety of biologically active molecules, and strategies for accessing this substructure are important for developing therapeutic candidates and biological probes. Trifluoroethylarenes can be directly accessed via nucleophilic trifluoromethylation of benzylic electrophiles; however, current catalytic methods do not effectively transform electron-deficient substrates and heterocycles. To address this gap, we report a Cu-catalyzed decarboxylative trifluoromethylation of benzylic bromodifluoroacetates. To account for the tolerance of sensitive functional groups, we propose an inner-sphere mechanism of decarboxylation.
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Affiliation(s)
- Brett R Ambler
- Department of Medicinal Chemistry, The University of Kansas, Lawrence, Kansas 66045, United States
| | - Lingui Zhu
- Department of Medicinal Chemistry, The University of Kansas, Lawrence, Kansas 66045, United States
| | - Ryan A Altman
- Department of Medicinal Chemistry, The University of Kansas, Lawrence, Kansas 66045, United States
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19
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Liang Y, Fu GC. Nickel-Catalyzed Alkyl-Alkyl Cross-Couplings of Fluorinated Secondary Electrophiles: A General Approach to the Synthesis of Compounds having a Perfluoroalkyl Substituent. Angew Chem Int Ed Engl 2015; 54:9047-51. [PMID: 26073669 DOI: 10.1002/anie.201503297] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2015] [Revised: 05/03/2015] [Indexed: 12/12/2022]
Abstract
Fluorinated organic molecules are of interest in fields ranging from medicinal chemistry to polymer science. Described herein is a mild, convenient, and versatile method for the synthesis of compounds bearing a perfluoroalkyl group attached to a tertiary carbon atom by using an alkyl-alkyl cross-coupling. A nickel catalyst derived from NiCl2 ⋅glyme and a pybox ligand achieves the coupling of a wide range of fluorinated alkyl halides with alkylzinc reagents at room temperature. A broad array of functional groups is compatible with the reaction conditions, and highly selective couplings can be achieved on the basis of differing levels of fluorination. A mechanistic investigation has established that the presence of 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) inhibits cross-coupling under these conditions and that a TEMPO-electrophile adduct can be isolated.
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Affiliation(s)
- Yufan Liang
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125 (USA)
| | - Gregory C Fu
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125 (USA).
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20
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Liang Y, Fu GC. Nickel-Catalyzed Alkyl-Alkyl Cross-Couplings of Fluorinated Secondary Electrophiles: A General Approach to the Synthesis of Compounds having a Perfluoroalkyl Substituent. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201503297] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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21
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Kathiravan S, Nicholls IA. Palladium Catalyzed Vinyltrifluoromethylation of Aryl Halides through Decarboxylative Cross-Coupling with 2-(Trifluoromethyl)acrylic Acid. Org Lett 2015; 17:1874-7. [DOI: 10.1021/acs.orglett.5b00551] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Subban Kathiravan
- Bioorganic & Biophysical Chemistry Laboratory, Linnaeus University Centre for Biomaterials Chemistry, Linnaeus University, SE-391 82 Kalmar, Sweden
| | - Ian A. Nicholls
- Bioorganic & Biophysical Chemistry Laboratory, Linnaeus University Centre for Biomaterials Chemistry, Linnaeus University, SE-391 82 Kalmar, Sweden
- Department
of Chemistry, BMC, Uppsala University, SE-751 23 Uppsala, Sweden
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22
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Alonso C, Martínez de Marigorta E, Rubiales G, Palacios F. Carbon trifluoromethylation reactions of hydrocarbon derivatives and heteroarenes. Chem Rev 2015; 115:1847-935. [PMID: 25635524 DOI: 10.1021/cr500368h] [Citation(s) in RCA: 792] [Impact Index Per Article: 88.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Concepción Alonso
- Departamento de Química Orgánica I - Centro de Investigación Lascaray, Facultad de Farmacia, Universidad del País Vasco , Paseo de la Universidad 7, 01006 Vitoria, Spain
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23
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Egami H, Ide T, Kawato Y, Hamashima Y. Benzylic C–H trifluoromethylation of phenol derivatives. Chem Commun (Camb) 2015; 51:16675-8. [DOI: 10.1039/c5cc07011b] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Phenol derivatives were trifluoromethylated using copper/Togni reagent. Reaction in DMF selectively gave benzylic trifluoromethylation products, whereas aromatic trifluoromethylation products were obtained in t-BuOH.
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Affiliation(s)
- Hiromichi Egami
- School of Pharmaceutical Sciences
- University of Shizuoka
- Shizuoka
- Japan
| | - Takafumi Ide
- School of Pharmaceutical Sciences
- University of Shizuoka
- Shizuoka
- Japan
| | - Yuji Kawato
- School of Pharmaceutical Sciences
- University of Shizuoka
- Shizuoka
- Japan
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24
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Tolnai GL, Székely A, Makó Z, Gáti T, Daru J, Bihari T, Stirling A, Novák Z. Efficient direct 2,2,2-trifluoroethylation of indoles via C–H functionalization. Chem Commun (Camb) 2015; 51:4488-91. [DOI: 10.1039/c5cc00519a] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Metal free direct trifluoroethylation of unprotected indoles at position 3 via C–H functionalization is presented: straightforward synthesis and DFT studies.
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Affiliation(s)
- Gergely L. Tolnai
- MTA-ELTE “Lendület” Catalysis and Organic Synthesis Research Group
- Institute of Chemistry
- Eötvös University
- Faculty of Science
- Budapest
| | - Anna Székely
- MTA-ELTE “Lendület” Catalysis and Organic Synthesis Research Group
- Institute of Chemistry
- Eötvös University
- Faculty of Science
- Budapest
| | - Zita Makó
- MTA-ELTE “Lendület” Catalysis and Organic Synthesis Research Group
- Institute of Chemistry
- Eötvös University
- Faculty of Science
- Budapest
| | - Tamás Gáti
- Servier Research Institute of Medicinal Chemistry
- H-1031 Budapest
- Hungary
| | - János Daru
- Research Centre for Natural Sciences of the Hungarian Academy of Sciences
- Department of Theoretical Chemistry
- 1117 Budapest
- Hungary
| | - Tamás Bihari
- Research Centre for Natural Sciences of the Hungarian Academy of Sciences
- Department of Theoretical Chemistry
- 1117 Budapest
- Hungary
| | - András Stirling
- Research Centre for Natural Sciences of the Hungarian Academy of Sciences
- Department of Theoretical Chemistry
- 1117 Budapest
- Hungary
| | - Zoltán Novák
- MTA-ELTE “Lendület” Catalysis and Organic Synthesis Research Group
- Institute of Chemistry
- Eötvös University
- Faculty of Science
- Budapest
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