1
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Hu X, Wang Y, Xu S, Wu J, Wu F. Visible Light-Induced Copper-Catalyzed Regio- and Stereoselective Difluoroalkylthiocyanation of Alkynes. J Org Chem 2024; 89:9118-9124. [PMID: 38842393 DOI: 10.1021/acs.joc.4c00834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
The first regio- and stereoselective difluoroalkylthiocyanation of alkynes with BrCF2R and KSCN has been disclosed under visible light-induced copper catalysis. The copper complex photosensitizer formed in situ not only promotes the generation of CF2-alkyl radicals but also facilitates the construction of C-SCN bonds, allowing the reaction to proceed smoothly without any additional photocatalysts or radical initiators. Moreover, the challenging internal alkynes can also be transformed to deliver CF2-derived tetrasubstituted olefins with potential applications in agricultural and medicinal chemistry.
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Affiliation(s)
- Xiaoxue Hu
- School of Chemical and Environmental Engineering and Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology, Shanghai Institute of Technology, Shanghai 201418, China
| | - Yanzhao Wang
- School of Chemical and Environmental Engineering and Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology, Shanghai Institute of Technology, Shanghai 201418, China
| | - Shibo Xu
- School of Chemical and Environmental Engineering and Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology, Shanghai Institute of Technology, Shanghai 201418, China
| | - Jingjing Wu
- School of Chemical and Environmental Engineering and Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology, Shanghai Institute of Technology, Shanghai 201418, China
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Fanhong Wu
- School of Chemical and Environmental Engineering and Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology, Shanghai Institute of Technology, Shanghai 201418, China
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2
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Zheng C, Cui X, Wu J, Wu P, Yu Y, Liu H, Wu F. Synthesis and Application of Monofluoroalkyl Building Blocks: α‐Halo‐α‐fluoroketones. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Cheng Zheng
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology Shanghai Institute of Technology 201418 Shanghai P. R. China
| | - Xuhui Cui
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology Shanghai Institute of Technology 201418 Shanghai P. R. China
| | - Jingjing Wu
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology Shanghai Institute of Technology 201418 Shanghai P. R. China
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 200032 Shanghai P.R.China
| | - Pingjie Wu
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology Shanghai Institute of Technology 201418 Shanghai P. R. China
| | - Yanyan Yu
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology Shanghai Institute of Technology 201418 Shanghai P. R. China
| | - Hanwen Liu
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology Shanghai Institute of Technology 201418 Shanghai P. R. China
| | - Fanhong Wu
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology Shanghai Institute of Technology 201418 Shanghai P. R. China
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3
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Dong L, Feng T, Xiong D, Xu Z, Cheng J, Xu X, Shao X, Li Z. Copper(II)-Catalyzed Direct C-H Trifluoroethylation of Heteroarenes. Org Lett 2022; 24:1913-1917. [PMID: 35261242 DOI: 10.1021/acs.orglett.2c00245] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Trifluoroethyl (CH2CF3) is an important functional group in many pharmaceutical and agrochemical compounds. Herein, we report an efficient method for the copper-catalyzed direct trifluoroethylation of heteroarenes. The reaction exhibited good compatibility to various substrates, and the desired products were obtained in good yields. Preliminary mechanistic investigations indicate the trifluoroethyl radical is involved in the catalytic circle. Moreover, the late-stage modification of bioactive molecules further confirmed the practical applications of this method.
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Affiliation(s)
- Lefeng Dong
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China
| | - Tingting Feng
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China
| | - Dongdong Xiong
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China
| | - Zhiping Xu
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China
| | - Jiagao Cheng
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China
| | - Xiaoyong Xu
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China
| | - Xusheng Shao
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China
| | - Zhong Li
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China
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4
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Butcher TW, Amberg WM, Hartwig JF. Transition‐Metal‐Catalyzed Monofluoroalkylation: Strategies for the Synthesis of Alkyl Fluorides by C−C Bond Formation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202112251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Trevor W. Butcher
- Department of Chemistry University of California, Berkeley Berkeley CA 94720 USA
| | - Willi M. Amberg
- Department of Chemistry and Applied Biosciences Laboratory of Organic Chemistry ETH Zϋrich 8093 Zϋrich Switzerland
| | - John F. Hartwig
- Department of Chemistry University of California, Berkeley Berkeley CA 94720 USA
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5
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Guo C, Liu Z, Li X, Han X, Li Y, Liu H, Zhang L, Li X, Dong Y. Silver-catalyzed monofluoroalkylation of heteroarenes with α-fluorocarboxylic acids: an insight into the solvent effect. Chem Commun (Camb) 2022; 58:1147-1150. [PMID: 34981099 DOI: 10.1039/d1cc06466e] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mild and efficient method for direct C-H monofluoroalkylation of heteroarenes with easily accessible and inexpensive α-fluorocarboxylic acids has been developed. This silver-catalyzed reaction affords mono- and bis-monofluoroalkylated heteroarenes in good yields under mild conditions, and the solvent effect on the monofluoroalkylation reaction is discussed in detail.
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Affiliation(s)
- Chunfang Guo
- College of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo, 255000, China. .,Shandong Vocational College of Light Industry, Zhoucun Mishan Road, Zibo, 255300, China
| | - Zhaolong Liu
- College of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo, 255000, China.
| | - Xiangye Li
- College of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo, 255000, China.
| | - Xuliang Han
- College of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo, 255000, China.
| | - Yueyun Li
- College of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo, 255000, China.
| | - Hui Liu
- College of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo, 255000, China.
| | - Lizhi Zhang
- College of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo, 255000, China.
| | - Xinjin Li
- College of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo, 255000, China. .,Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Yunhui Dong
- College of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo, 255000, China.
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6
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Zheng K, Liu Y, Zheng C, Yan F, Xiao H, feng Y, Fan S. Palladium‐Catalyzed Monofluoroalkylation of Aryl Iodides and Aryl Bromides with Nucleophilic Ethyl 2‐Fluoro‐2‐(trimethylsilyl)acetate. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | | | | | | | - Hua Xiao
- Hefei University of Technology CHINA
| | | | - Shilu Fan
- Hefei University of Technology CHINA
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7
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Hu Z, Ren J, Chen Z, Yin S, Wu F, Liu C, Wu Z, Wu J. Cobalt‐Catalyzed Addition of Ethyl Bromofluoroacetate to Alkynes. ChemistrySelect 2021. [DOI: 10.1002/slct.202102936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Zhaoming Hu
- Shanghai Engineering Research Center of GreenFluoropharmaceutical Technology Shanghai 201418 China
- Department of Pharmaceutical Engineering School of Chemical and Environmental Engineering Shanghai Institute of Technology Shanghai 201418 China
| | - Jie Ren
- Shanghai Engineering Research Center of GreenFluoropharmaceutical Technology Shanghai 201418 China
- Department of Pharmaceutical Engineering School of Chemical and Environmental Engineering Shanghai Institute of Technology Shanghai 201418 China
| | - Zhizhi Chen
- Shanghai Engineering Research Center of GreenFluoropharmaceutical Technology Shanghai 201418 China
- Department of Pharmaceutical Engineering School of Chemical and Environmental Engineering Shanghai Institute of Technology Shanghai 201418 China
| | - Siyu Yin
- Shanghai Engineering Research Center of GreenFluoropharmaceutical Technology Shanghai 201418 China
- Department of Pharmaceutical Engineering School of Chemical and Environmental Engineering Shanghai Institute of Technology Shanghai 201418 China
| | - Fanhong Wu
- Shanghai Engineering Research Center of GreenFluoropharmaceutical Technology Shanghai 201418 China
- Department of Pharmaceutical Engineering School of Chemical and Environmental Engineering Shanghai Institute of Technology Shanghai 201418 China
| | - Chao Liu
- Shanghai Engineering Research Center of GreenFluoropharmaceutical Technology Shanghai 201418 China
- Department of Pharmaceutical Engineering School of Chemical and Environmental Engineering Shanghai Institute of Technology Shanghai 201418 China
| | - Zhuo Wu
- Shanghai Engineering Research Center of GreenFluoropharmaceutical Technology Shanghai 201418 China
- Department of Pharmaceutical Engineering School of Chemical and Environmental Engineering Shanghai Institute of Technology Shanghai 201418 China
| | - Jingjing Wu
- Shanghai Engineering Research Center of GreenFluoropharmaceutical Technology Shanghai 201418 China
- Department of Pharmaceutical Engineering School of Chemical and Environmental Engineering Shanghai Institute of Technology Shanghai 201418 China
- Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 200032 Shanghai P. R. China
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8
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Butcher TW, Amberg WM, Hartwig JF. Transition-Metal-Catalyzed Monofluoroalkylation: Strategies for the Synthesis of Alkyl Fluorides by C-C Bond Formation. Angew Chem Int Ed Engl 2021; 61:e202112251. [PMID: 34658121 DOI: 10.1002/anie.202112251] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Indexed: 11/09/2022]
Abstract
Alkyl fluorides modulate the conformation, lipophilicity, metabolic stability, and p K a of compounds containing aliphatic motifs and, therefore, have been valuable for medicinal chemistry. Despite significant research in organofluorine chemistry, the synthesis of alkyl fluorides, especially chiral alkyl fluorides, remains a challenge. Most commonly, alkyl fluorides are prepared by the formation of C-F bonds (fluorination), and numerous strategies for nucleophilic, electrophilic, and radical fluorination have been reported in recent years. Although strategies to access alkyl fluorides by C-C bond formation (monofluoroalkylation) are inherently convergent and complexity-generating, they have studied less than methods based on fluorination. This Review provides an overview of recent developments in the synthesis of chiral (enantioenriched or racemic) secondary and tertiary alkyl fluorides by monofluoroalkylation catalyzed by transition-metal complexes. We expect this contribution will illuminate the potential of monofluoroalkylations to simplify the synthesis of complex alkyl fluorides and suggest further research directions in this growing field.
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Affiliation(s)
| | - Willi M Amberg
- University of California Berkeley, Chemistry, UNITED STATES
| | - John F Hartwig
- University of California, Department of Chemistry, 718 LATIMER HALL #1460, 94720-1460, Berkeley, UNITED STATES
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9
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Wu J, Wu F, Li Z, Fang M, Liu Y, Liu Y. Efficient Monofluoroalkylation of Thiophenols or Phenols with α-Bromo-α-Fluoroketones under Mild Conditions. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1395-4788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
AbstractAn efficient nucleophilic substitution reaction between α-bromo-α-fluoroketones and thiophenols or phenols is reported for the synthesis of α-fluoro-β-ketosulfides or α-fluoro-β-ketone ethers in yields ranging from 78–93%. This method exhibits good functional group tolerance and a broad scope of nucleophilic substrates, including natural phenolic compounds.
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Affiliation(s)
- Jingjing Wu
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology, Shanghai Institute of Technology
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry
| | - Fanhong Wu
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology, Shanghai Institute of Technology
| | - Zhi Li
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology, Shanghai Institute of Technology
| | - Mougui Fang
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology, Shanghai Institute of Technology
| | - Yunli Liu
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology, Shanghai Institute of Technology
| | - Yecheng Liu
- Shanghai Engineering Research Center of Green Fluoropharmaceutical Technology, Shanghai Institute of Technology
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10
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Nicholls TP, Bourne RA, Nguyen BN, Kapur N, Willans CE. On-Demand Electrochemical Synthesis of Tetrakisacetonitrile Copper(I) Triflate and Its Application in the Aerobic Oxidation of Alcohols. Inorg Chem 2021; 60:6976-6980. [PMID: 33890765 DOI: 10.1021/acs.inorgchem.1c00488] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An on-demand electrochemical synthesis of copper(I) triflate under both batch and continuous flow conditions has been developed. A major benefit of the electrochemical methodology is that the only byproduct of the reaction is hydrogen gas, which obviates the need for workup and purification, and water is not incorporated into the product. Upon completion of the electrochemical synthesis, solutions are directly transferred or dispensed into reaction mixtures for the catalytic oxidation of benzyl alcohol with no requirement for workup or purification.
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Affiliation(s)
| | | | - Bao N Nguyen
- School of Chemistry, University of Leeds, Leeds LS2 9JT, U.K
| | - Nikil Kapur
- School of Mechanical Engineering, University of Leeds, Leeds LS2 9JT, U.K
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11
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One-pot synthesis of sulfones via Ni(II)-catalyzed sulfonylation of boronic acids, Na2S2O5 and benzylic ammonium salts. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111500] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Cobalt-catalyzed synthesis of bromomonofluoroallyl ketones by addition of alkynes and α-bromo-α-fluoroketones. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2020.152805] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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13
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Day DP, Vargas JAM, Burtoloso ACB. Synthetic Routes Towards the Synthesis of Geminal α-Difunctionalized Ketones. CHEM REC 2021; 21:2837-2854. [PMID: 33533538 DOI: 10.1002/tcr.202000176] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/11/2021] [Indexed: 12/25/2022]
Abstract
The importance of gem-difunctionalized ketones is represented by their broad applications across chemical boundaries over recent years. The interesting reactivities that this class of compounds possess have made them ideal building blocks to access high-value organic molecules. Furthermore, the gem-difunctionalized ketone moiety has featured in numerous bioactive molecules. For these reasons, a plethora of routes to access such significant molecules have been developed by research groups worldwide - this account looks at delineating the synthesis of gem-difunctionalized ketones from carbonyl substrates, diazo compounds, sulfur ylides and alkynyl reactants.
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Affiliation(s)
- David P Day
- Instituto de Química de São Carlos, Universidade de São Paulo, CEP 13560-970, São Carlos, SP, Brasil
| | - Jorge A M Vargas
- Instituto de Química de São Carlos, Universidade de São Paulo, CEP 13560-970, São Carlos, SP, Brasil.,Facultad de Ciencias Básicas, Universidad Santiago de Cali, Calle 5 # 62-00 Campus Pampalinda, Santiago de Cali, Colombia
| | - Antonio C B Burtoloso
- Instituto de Química de São Carlos, Universidade de São Paulo, CEP 13560-970, São Carlos, SP, Brasil
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14
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Touqeer S, Senatore R, Malik M, Urban E, Pace V. Modular and Chemoselective Strategy for Accessing (Distinct) α,α‐Dihaloketones from Weinreb Amides and Dihalomethyllithiums. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001106] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Saad Touqeer
- University of Vienna Department of Pharmaceutical Chemistry Althanstrasse 14 1090 Vienna Austria
| | - Raffaele Senatore
- University of Vienna Department of Pharmaceutical Chemistry Althanstrasse 14 1090 Vienna Austria
| | - Monika Malik
- University of Vienna Department of Pharmaceutical Chemistry Althanstrasse 14 1090 Vienna Austria
| | - Ernst Urban
- University of Vienna Department of Pharmaceutical Chemistry Althanstrasse 14 1090 Vienna Austria
| | - Vittorio Pace
- University of Vienna Department of Pharmaceutical Chemistry Althanstrasse 14 1090 Vienna Austria
- University of Turin Department of Chemistry Via P. Giuria 7 10125 Turin Italy
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15
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Sadhukhan S, Santhi J, Baire B. The α,α‐Dihalocarbonyl Building Blocks: An Avenue for New Reaction Development in Organic Synthesis. Chemistry 2020; 26:7145-7175. [DOI: 10.1002/chem.201905475] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 01/08/2020] [Indexed: 01/04/2023]
Affiliation(s)
- Santu Sadhukhan
- Department of ChemistryIndian Institute of Technology Madras Chennai 600036 India
| | - Jampani Santhi
- Department of ChemistryIndian Institute of Technology Madras Chennai 600036 India
| | - Beeraiah Baire
- Department of ChemistryIndian Institute of Technology Madras Chennai 600036 India
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