1
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Kitahara T, Tagami Y, Haga Y, Fustero S, Sugiishi T, Amii H. Alkylation and silylation of α-fluorobenzyl anion intermediates. Org Biomol Chem 2023; 21:9210-9215. [PMID: 37961788 DOI: 10.1039/d3ob01586f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Simple α-fluorobenzyl anions reacted with electrophiles such as non-activated alkyl halides and chlorotrimethylsilane. Upon treatment with LTMP as the base, fluoromethylbenzenes took part in the formation of α-monofluorobenzyl anions without stabilizing o-substituents. Furthermore, the resulting α-silyl fluoromethylbenzenes reacted with electrophiles such as acetophenone and benzaldehyde in the presence of cesium fluoride to form α-fluorobenzylated alcohols.
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Affiliation(s)
- Taku Kitahara
- Division of Molecular Science, Graduate School of Science and Technology, 1-5-1, Tenjin-cho, Kiryu, Gunma 376-8515, Japan.
| | - Yuta Tagami
- Division of Molecular Science, Graduate School of Science and Technology, 1-5-1, Tenjin-cho, Kiryu, Gunma 376-8515, Japan.
| | - Yuto Haga
- Division of Molecular Science, Graduate School of Science and Technology, 1-5-1, Tenjin-cho, Kiryu, Gunma 376-8515, Japan.
| | - Santos Fustero
- Departamento de Química Orgánica, Facultad de Farmacia, Universitat de València, Vicente Andrés Estelles s/n, C.P.: 46100 Burjassot, Valencia, Spain
| | - Tsuyuka Sugiishi
- Division of Molecular Science, Graduate School of Science and Technology, 1-5-1, Tenjin-cho, Kiryu, Gunma 376-8515, Japan.
| | - Hideki Amii
- Division of Molecular Science, Graduate School of Science and Technology, 1-5-1, Tenjin-cho, Kiryu, Gunma 376-8515, Japan.
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2
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Lv Y, Hou ZW, Wang Y, Li P, Wang L. Electrochemical monofluoroalkylation cyclization of N-arylacrylamides to construct monofluorinated 2-oxindoles. Org Biomol Chem 2023; 21:1014-1020. [PMID: 36602181 DOI: 10.1039/d2ob01883g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
An electrochemical monofluoroalkylation cyclization of N-arylacrylamides to synthesize monofluorinated 2-oxindoles has been developed, which employs common dimethyl 2-fluoromalonate as a monofluoroalkyl radical precursor and obviates the use of prefunctionalized monofluoroalkylation reagents and sacrificial oxidants. A variety of monofluorinated nitrogen-containing heterocyclic compounds were efficiently obtained with satisfactory yields from readily available materials.
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Affiliation(s)
- Yanxia Lv
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Taizhou 318000, P. R. China. .,Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China
| | - Zhong-Wei Hou
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Taizhou 318000, P. R. China.
| | - Yi Wang
- The Second Hospital of Anhui Medical University, Heifei, Anhui 230601, P. R. China
| | - Pinhua Li
- Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China
| | - Lei Wang
- Advanced Research Institute and School of Pharmaceutical Sciences, Taizhou University, Taizhou 318000, P. R. China. .,Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.,The Second Hospital of Anhui Medical University, Heifei, Anhui 230601, P. R. China
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3
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Lee S, Chung W. Enantioselective halogenation via asymmetric
phase‐transfer
catalysis. B KOREAN CHEM SOC 2022. [DOI: 10.1002/bkcs.12546] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Sunggi Lee
- Department of Physics and Chemistry DGIST Daegu Republic of Korea
| | - Won‐jin Chung
- Department of Chemistry GIST Gwangju Republic of Korea
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4
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Ni SX, Li YL, Ni HQ, Bi YX, Sheng J, Wang XS. Nickel-catalyzed hydromonofluoromethylation of unactivated alkenes for expedient construction of primary alkyl fluorides. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.06.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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5
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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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6
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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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7
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Zhang X, Zhang X, Song Q, Sivaguru P, Wang Z, Zanoni G, Bi X. A Carbene Strategy for Progressive (Deutero)Hydrodefluorination of Fluoroalkyl Ketones. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202116190] [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)
- Xiaolong Zhang
- Department of Chemistry Northeast Normal University Changchun 130024 China
| | - Xinyu Zhang
- Department of Chemistry Northeast Normal University Changchun 130024 China
| | - Qingmin Song
- Department of Chemistry Northeast Normal University Changchun 130024 China
| | | | - Zikun Wang
- Department of Chemistry Northeast Normal University Changchun 130024 China
| | - Giuseppe Zanoni
- Department of Chemistry University of Pavia Viale Taramelli 12 27100 Pavia Italy
| | - Xihe Bi
- Department of Chemistry Northeast Normal University Changchun 130024 China
- State Key Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 China
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8
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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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9
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Zhang X, Zhang X, Song Q, Sivaguru P, Wang Z, Zanoni G, Bi X. A Carbene Strategy for Progressive (Deutero)Hydrodefluorination of Fluoroalkyl Ketones. Angew Chem Int Ed Engl 2021; 61:e202116190. [PMID: 34889004 DOI: 10.1002/anie.202116190] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Indexed: 12/29/2022]
Abstract
Hydrodefluorination is one of the most promising chemical strategies to degrade perfluorochemicals into partially fluorinated compounds. However, controlled progressive hydrodefluorination remains a significant challenge, owing to the decrease in the strength of C-F bonds along with the defluorination. Here we describe a carbene strategy for the sequential (deutero)hydrodefluorination of perfluoroalkyl ketones under rhodium catalysis, allowing for the controllable preparation of difluoroalkyl- and monofluoroalkyl ketones from aryl- and even alkyl-substituted perfluoro-alkyl ketones in high yield with excellent functional group tolerance. The reaction mechanism and the origin of the intriguing chemoselectivity of the reaction were rationalized by density functional theory (DFT) calculations.
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Affiliation(s)
- Xiaolong Zhang
- Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Xinyu Zhang
- Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Qingmin Song
- Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | | | - Zikun Wang
- Department of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Giuseppe Zanoni
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy
| | - Xihe Bi
- Department of Chemistry, Northeast Normal University, Changchun, 130024, China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
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10
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Hou ZW, Jiang T, Wu TX, Wang L. Electrochemical Intermolecular Monofluoroalkylation of α,β-Unsaturated Carboxylic Acids and Heteroaromatics with 2-Fluoromalonate Esters. Org Lett 2021; 23:8585-8589. [PMID: 34699245 DOI: 10.1021/acs.orglett.1c03284] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An electrochemical approach for the preparation of monofluorides from α,β-unsaturated carboxylic acids and heteroaromatics with readily available 2-fluoromalonate esters as monofluoroalkyl radical precursors has been developed. The electrosynthesis employs ferrocene (Cp2Fe) as a catalyst in a simple undivided cell with a broad substrate scope, which obviates the need for sacrificial oxidizing reagents.
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Affiliation(s)
- Zhong-Wei Hou
- Advanced Research Institute and Department of Chemistry, Taizhou University, Taizhou, Zhejiang 318000, P. R. China
| | - Ting Jiang
- Advanced Research Institute and Department of Chemistry, Taizhou University, Taizhou, Zhejiang 318000, P. R. China
| | - Ting-Xia Wu
- Advanced Research Institute and Department of Chemistry, Taizhou University, Taizhou, Zhejiang 318000, P. R. China
| | - Lei Wang
- Advanced Research Institute and Department of Chemistry, Taizhou University, Taizhou, Zhejiang 318000, P. R. China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
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11
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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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12
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Cui R, Sheng J, Wu BB, Hu DD, Zheng HQ, Wang XS. Nickel-catalyzed reductive monofluoroakylation of alkyl tosylate with bromofluoromethane to primary alkyl fluoride. Chem Commun (Camb) 2021; 57:9084-9087. [PMID: 34498613 DOI: 10.1039/d1cc02837e] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A nickel-catalysed direct terminal monofluoromethlyation between alkyl tosylates and a low-cost, industrial raw material bromofluoromethane has been developed. This transformation has demonstrated high efficiency, mild conditions, and good functional-group compatibility. The key to success of this transformation lies in the ligand and mild base selection, ensuring the generation of various terminal monofluormethylation products.
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Affiliation(s)
- Ru Cui
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
| | - Jie Sheng
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
| | - Bing-Bing Wu
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
| | - Duo-Duo Hu
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
| | - Hong-Qian Zheng
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
| | - Xi-Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
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13
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Li H, Sheng J, Wu BB, Li Y, Wang XS. Nickel-Catalyzed Cross-Coupling of Ethyl Chlorofluoroacetate with Aryl Bromides. Chem Asian J 2021; 16:1741-1744. [PMID: 34008316 DOI: 10.1002/asia.202100348] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 05/13/2021] [Indexed: 11/05/2022]
Abstract
A combinatorial nickel-catalyzed monofluoroalkylation of aryl bromides with the industrial raw regent ethyl chlorofluoroacetate has been developed. The two key factors to successful conversion are the combination of nickel with readily available nitrogen and phosphine ligands and the using of a mixture of different solvents. Mechanistic investigations indicated a new zinc regent might generated in situ and be involved in the reaction process.
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Affiliation(s)
- Han Li
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemical, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Jie Sheng
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemical, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Bing-Bing Wu
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemical, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Yan Li
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemical, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Xi-Sheng Wang
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Chemical, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
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14
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Hu CC, Hu WQ, Xu XH, Qing FL. 2-Position-selective C H fluoromethylation of six-membered heteroaryl N-oxides with (fluoromethyl)triphenylphosphonium iodide. J Fluor Chem 2021. [DOI: 10.1016/j.jfluchem.2020.109695] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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15
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Abstract
This review highlights important developments in nickel-catalysed mono-, di- and tri-fluoromethylation, trifluoromethylthiolation and trifluoromethylselenolation.
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Affiliation(s)
- Pravya P. Nair
- Institute for Integrated Programmes and Research in Basic Sciences (IIRBS), Mahatma Gandhi University, Priyadarsini Hills P O, Kottayam, Kerala, 686560 India
| | - Rose Mary Philip
- School of Chemical Sciences, Mahatma Gandhi University, Priyadarsini Hills P O, Kottayam, Kerala, 686560 India
| | - Gopinathan Anilkumar
- Institute for Integrated Programmes and Research in Basic Sciences (IIRBS), Mahatma Gandhi University, Priyadarsini Hills P O, Kottayam, Kerala, 686560 India
- School of Chemical Sciences, Mahatma Gandhi University, Priyadarsini Hills P O, Kottayam, Kerala, 686560 India
- Advanced Molecular Materials Research Centre (AMMRC), Mahatma Gandhi University, Priyadarsini Hills P O, Kottayam, Kerala, 686560 India
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16
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Tang L, Yang F, Yang Z, Chen H, Cheng H, Zhang S, Zhou Q, Rao W. Application of Bifunctional 2-Amino-1,4-naphthoquinones in Visible-Light-Promoted Photocatalyst-Free Alkene Perfluoroalkyl-Alkenylation. Org Lett 2020; 23:519-524. [PMID: 33382626 DOI: 10.1021/acs.orglett.0c04036] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A simple and practical photochemical strategy for intermolecular perfluoroalkyl-alkenylation of alkenes with 2-amino-1,4-naphthoquinones and perfluoroalkyl iodides has been demonstrated under visible-light irradiation. Mechanistic studies reveal that easily available 2-amino-1,4-naphthoquinone substrates can serve as efficient photosensitizers to activate perfluoroalkyl iodides through a photoredox process. Therefore, the developed radical relay reaction proceeds smoothly without additional transition metals and photocatalysts.
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Affiliation(s)
- Lin Tang
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China.,Henan Province Key Laboratory of Utilization of Non-metallic Mineral in the Sourth of Henan, Xinyang 464000, China
| | - Fang Yang
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Zhen Yang
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Hanfei Chen
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Hao Cheng
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Shuaifei Zhang
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Qiuju Zhou
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
| | - Weihao Rao
- College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, China
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17
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Qin W, Liu J, Huang Z, Li X, Xiong W, Chen J, Liu G. Bench‐Stable
S
‐(Monofluoromethyl)sulfonium Salts: Highly Efficient
C
‐ and
O
‐Regioselective Monofluoromethylation of 1,3‐Dicarbonyl Compounds. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000998] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Wen‐Bing Qin
- School of Pharmaceutical Sciences Shenzhen University Health Science Centre Shenzhen University 3688 Nanhai Ave., Nanshan District 518060 Shenzhen P. R. China
| | - Jian‐Jian Liu
- School of Pharmaceutical Sciences Shenzhen University Health Science Centre Shenzhen University 3688 Nanhai Ave., Nanshan District 518060 Shenzhen P. R. China
| | - Zhongyan Huang
- Shenzhen Key Laboratory of Polymer Science and Technology College of Materials Science and Engineering Shenzhen University 3688 Nanhai Ave., Nanshan District 518060 Shenzhen P. R. China
| | - Xin Li
- School of Pharmaceutical Sciences Shenzhen University Health Science Centre Shenzhen University 3688 Nanhai Ave., Nanshan District 518060 Shenzhen P. R. China
| | - Wei Xiong
- School of Pharmaceutical Sciences Shenzhen University Health Science Centre Shenzhen University 3688 Nanhai Ave., Nanshan District 518060 Shenzhen P. R. China
| | - Jia‐Yi Chen
- School of Pharmaceutical Sciences Shenzhen University Health Science Centre Shenzhen University 3688 Nanhai Ave., Nanshan District 518060 Shenzhen P. R. China
| | - Guo‐Kai Liu
- School of Pharmaceutical Sciences Shenzhen University Health Science Centre Shenzhen University 3688 Nanhai Ave., Nanshan District 518060 Shenzhen P. R. China
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18
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Reichel M, Karaghiosoff K. Reagents for Selective Fluoromethylation: A Challenge in Organofluorine Chemistry. Angew Chem Int Ed Engl 2020; 59:12268-12281. [PMID: 32022357 PMCID: PMC7383490 DOI: 10.1002/anie.201913175] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 01/30/2020] [Indexed: 01/09/2023]
Abstract
The introduction of a monofluoromethyl moiety has undoubtedly become a very important area of research in recent years. Owing to the beneficial properties of organofluorine compounds, such as their metabolic stability, the incorporation of the CH2 F group as a bioisosteric substitute for various functional groups is an attractive strategy for the discovery of new pharmaceuticals. Furthermore, the monofluoromethyl unit is also widely used in agrochemistry, in pharmaceutical chemistry, and in fine chemicals. The problems associated with climate change and the growing need for environmentally friendly industrial processes mean that alternatives to the frequently used CFC and HFBC fluoromethylating agents (CH2 FCl and CH2 FBr) are urgently needed and also required by the Montreal Protocol. This has recently prompted many researchers to develop alternative fluoromethylation agents. This Minireview summarizes both the classical and new generation of fluoromethylating agents. Reagents that act via electrophilic, nucleophilic, and radical pathways are discussed, in addition to their precursors.
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Affiliation(s)
- Marco Reichel
- Department of ChemistryLudwig-Maximilian UniversityButenandstr. 5–1381377MunichGermany
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19
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Reichel M, Karaghiosoff K. Reagenzien für die selektive Fluormethylierung: Herausforderungen der Organofluorchemie. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913175] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Marco Reichel
- Department Chemie Ludwig-Maximilians-Universität Butenandtstr. 5–13 81377 München Deutschland
| | - Konstantin Karaghiosoff
- Department Chemie Ludwig-Maximilians-Universität Butenandtstr. 5–13 81377 München Deutschland
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20
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Li K, Chen J, Yang C, Zhang K, Pan C, Fan B. Blue Light Promoted Difluoroalkylation of Aryl Ketones: Synthesis of Quaternary Alkyl Difluorides and Tetrasubstituted Monofluoroalkenes. Org Lett 2020; 22:4261-4265. [DOI: 10.1021/acs.orglett.0c01294] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kangkui Li
- Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650031, Yunnan China
| | - Jingchao Chen
- Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650031, Yunnan China
| | - Chunhui Yang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650031, Yunnan China
| | - Keyang Zhang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650031, Yunnan China
| | - Chunxiang Pan
- Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650031, Yunnan China
| | - Baomin Fan
- School of Chemistry and Environment, Yunnan Minzu University, Kunming 650031, Yunnan China
- Key Laboratory of Chemistry in Ethnic Medicinal Resources (Yunnan Minzu University), State Ethnic Affairs Commission & Ministry of Education, Yunnan Minzu University, Kunming 650031, Yunnan China
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21
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Choi G, Kim HE, Hwang S, Jang H, Chung WJ. Phosphorus(III)-Mediated, Tandem Deoxygenative Geminal Chlorofluorination of 1,2-Diketones. Org Lett 2020; 22:4190-4195. [DOI: 10.1021/acs.orglett.0c01258] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Garam Choi
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Ha Eun Kim
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Sunjoo Hwang
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Hanna Jang
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Won-jin Chung
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
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22
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Chen L, Yang JC, Xu P, Zhang JJ, Duan XH, Guo L. Nickel-catalyzed Suzuki Coupling of Cycloalkyl Silyl Peroxides with Boronic Acids. J Org Chem 2020; 85:7515-7525. [DOI: 10.1021/acs.joc.0c00250] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Lei Chen
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Jun-Cheng Yang
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Pengfei Xu
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Jun-Jie Zhang
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Xin-Hua Duan
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Li−Na Guo
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, P. R. China
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23
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Yang Y, Luo G, Li Y, Tong X, He M, Zeng H, Jiang Y, Liu Y, Zheng Y. Nickel-Catalyzed Reductive Coupling for Transforming Unactivated Aryl Electrophiles into β-Fluoroethylarenes. Chem Asian J 2020; 15:156-162. [PMID: 31755237 DOI: 10.1002/asia.201901490] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 11/21/2019] [Indexed: 01/24/2023]
Abstract
We report herein a facile synthetic method for converting unactivated (hetero)aryl electrophiles into β-fluoroethylated (hetero)arenes via nickel-catalyzed reductive cross-couplings. This coupling reaction features the involvement of FCH2 CH2 radical intermediate rather than β-fluoroethyl manganese species which provides effective solutions to the problematic β-fluoride side eliminations. The practical value of this protocol is further demonstrated by the late-stage modification of several complex ArCl or ArOH-derived bioactive molecules.
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Affiliation(s)
- Yi Yang
- College of Chemistry and Environmental Engineering, Sichuan University of Science&Engineering, 180 Xueyuan Street, Huixing Lu, Zigong, Sichuan, 643000, China
| | - Gen Luo
- College of Chemistry and Environmental Engineering, Sichuan University of Science&Engineering, 180 Xueyuan Street, Huixing Lu, Zigong, Sichuan, 643000, China
| | - Youlin Li
- College of Chemistry and Environmental Engineering, Sichuan University of Science&Engineering, 180 Xueyuan Street, Huixing Lu, Zigong, Sichuan, 643000, China
| | - Xia Tong
- College of Chemistry and Environmental Engineering, Sichuan University of Science&Engineering, 180 Xueyuan Street, Huixing Lu, Zigong, Sichuan, 643000, China
| | - Mengmeng He
- College of Chemistry and Environmental Engineering, Sichuan University of Science&Engineering, 180 Xueyuan Street, Huixing Lu, Zigong, Sichuan, 643000, China
| | - Hongyao Zeng
- College of Chemistry, Leshan Normal University, 778 Binghe Road, Leshan, Sichuan, 614000, China
| | - Yan Jiang
- College of Chemistry and Environmental Engineering, Sichuan University of Science&Engineering, 180 Xueyuan Street, Huixing Lu, Zigong, Sichuan, 643000, China
| | - Yingle Liu
- College of Chemistry and Environmental Engineering, Sichuan University of Science&Engineering, 180 Xueyuan Street, Huixing Lu, Zigong, Sichuan, 643000, China
| | - Yubin Zheng
- College of Chemistry and Environmental Engineering, Sichuan University of Science&Engineering, 180 Xueyuan Street, Huixing Lu, Zigong, Sichuan, 643000, China
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24
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Fu W, Sun Y, Li X. Silver-catalyzed monofluoromethylation of alkynoates with sodium monofluoroalkanesulfinate (CH2FSO2Na) to access 3-monofluoromethylated coumarins. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1697452] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Weijun Fu
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Fuction-Oriented Porous Materials, Luoyang Normal University, Luoyang, Henan, P. R. China
| | - Yana Sun
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Fuction-Oriented Porous Materials, Luoyang Normal University, Luoyang, Henan, P. R. China
| | - Xinyi Li
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Fuction-Oriented Porous Materials, Luoyang Normal University, Luoyang, Henan, P. R. China
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25
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Li C, Cao YX, Jin RX, Bian KJ, Qin ZY, Lan Q, Wang XS. Highly stereoselective nickel-catalyzed difluoroalkylation of aryl ketones to tetrasubstituted monofluoroalkenes and quaternary alkyl difluorides. Chem Sci 2019; 10:9285-9291. [PMID: 32055314 PMCID: PMC7003883 DOI: 10.1039/c9sc02806d] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 08/17/2019] [Indexed: 12/19/2022] Open
Abstract
A nickel-catalyzed difluoroalkylation of α-C-H bonds of aryl ketones to furnish highly stereo-defined tetrasubstituted monofluoroalkenes or quaternary alkyl difluorides from secondary or tertiary ketones, respectively, has been established. Mechanistic investigations indicated that these C-H fluoroalkylations proceed via a Ni(i)/Ni(iii) catalytic cycle. An obvious fluorine effect was observed in the reaction, and this reaction has demonstrated high stereoselectivity, mild conditions, and broad substrate scopes, thus enabling the late-stage fluoroalkylation of bioactive molecules. This method offers a solution for expedient construction of monofluoroalkenes from readily available materials, and provides an efficient approach for the synthesis of bioactive fluorinated compounds for the discovery of lead compounds in medicinal chemistry.
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Affiliation(s)
- Chao Li
- Hefei National Laboratory for Physical Sciences at the Microscale , Department of Chemistry , Center for Excellence in Molecular Synthesis of CAS , University of Science and Technology of China , Hefei , Anhui 230026 , China .
| | - Yi-Xuan Cao
- Hefei National Laboratory for Physical Sciences at the Microscale , Department of Chemistry , Center for Excellence in Molecular Synthesis of CAS , University of Science and Technology of China , Hefei , Anhui 230026 , China .
| | - Ruo-Xing Jin
- Hefei National Laboratory for Physical Sciences at the Microscale , Department of Chemistry , Center for Excellence in Molecular Synthesis of CAS , University of Science and Technology of China , Hefei , Anhui 230026 , China .
| | - Kang-Jie Bian
- Hefei National Laboratory for Physical Sciences at the Microscale , Department of Chemistry , Center for Excellence in Molecular Synthesis of CAS , University of Science and Technology of China , Hefei , Anhui 230026 , China .
| | - Zi-Yang Qin
- Hefei National Laboratory for Physical Sciences at the Microscale , Department of Chemistry , Center for Excellence in Molecular Synthesis of CAS , University of Science and Technology of China , Hefei , Anhui 230026 , China .
| | - Quan Lan
- Hefei National Laboratory for Physical Sciences at the Microscale , Department of Chemistry , Center for Excellence in Molecular Synthesis of CAS , University of Science and Technology of China , Hefei , Anhui 230026 , China .
| | - Xi-Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale , Department of Chemistry , Center for Excellence in Molecular Synthesis of CAS , University of Science and Technology of China , Hefei , Anhui 230026 , China .
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26
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Yang X, Kong WY, Gao JN, Cheng L, Li NN, Li M, Li HT, Fan J, Gao JM, Ouyang Q, Xie JB. Rhodium catalyzed C-C bond cleavage/coupling of 2-(azetidin-3-ylidene)acetates and analogs. Chem Commun (Camb) 2019; 55:12707-12710. [PMID: 31588468 DOI: 10.1039/c9cc06446j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The C-C bond cleavage/coupling of 2-(azetidin-3-ylidene)acetates with aryl boronic acids catalyzed by a rhodium complex was studied with a "conjugate addition/β-C cleavage/protonation" strategy.
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Affiliation(s)
- Xuan Yang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China.
| | - Wei-Yu Kong
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China.
| | - Jia-Ni Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China.
| | - Li Cheng
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Nan-Nan Li
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China.
| | - Meng Li
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China.
| | - Hui-Ting Li
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China.
| | - Jun Fan
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China.
| | - Jin-Ming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China.
| | - Qin Ouyang
- College of Pharmacy, Third Military Medical University, Chongqing 400038, China.
| | - Jian-Bo Xie
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China. and State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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27
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Kita Y, Shigetani S, Kamata K, Hara M. Benzylic C H fluorination over supported silver catalyst. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.110463] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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28
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Copper-catalyzed remote C-H monofluoromethylation of 8-aminoquinolines with dimethyl phosphonate as reductant. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151077] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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29
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Liang J, Han J, Wu J, Wu P, Hu J, Hu F, Wu F. Nickel-Catalyzed Coupling Reaction of α-Bromo-α-fluoroketones with Arylboronic Acids toward the Synthesis of α-Fluoroketones. Org Lett 2019; 21:6844-6849. [PMID: 31411478 DOI: 10.1021/acs.orglett.9b02474] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A nickel-catalyzed coupling reaction of α-bromo-α-fluoroketones with arylboronic acids was reported, which provides an efficient pathway to access 2-fluoro-1,2-diarylethanones in high yields. We also disclosed the synthesis of the monofluorination agents α-bromo-α-fluoroketones by using a trifluoroacetate release protocol. Mechanistic investigation indicated that a monofluoroalkyl radical is involved in the catalytic circle. Moreover, an important medical intermediate of flindokalner was synthesized via a nickel-catalyzed coupling reaction of α-bromo-α-fluoro-2-indolone and boronic ester.
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Affiliation(s)
- Junqing Liang
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, People's Republic of China
| | - Jie Han
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, People's Republic of China
| | - Jingjing Wu
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, People's Republic of China
| | - Pingjie Wu
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, People's Republic of China
| | - Jian Hu
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, People's Republic of China
| | - Feng Hu
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, People's Republic of China
| | - Fanhong Wu
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, People's Republic of China
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30
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Affiliation(s)
- Chang Xu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Zhi-Fang Yang
- Institute of Pharmacy and Pharmacology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, 28 Western Changsheng Road, Hengyang, Hunan 421001, China
| | - Lun An
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, 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, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
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31
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Ding T, Jiang L, Yang J, Xu Y, Wang G, Yi W. Highly Carbon-Selective Monofluoromethylation of β-Ketoesters with Fluoromethyl Iodide. Org Lett 2019; 21:6025-6028. [PMID: 31339324 DOI: 10.1021/acs.orglett.9b02175] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A highly carbon-selective monofluoromethylation of a broad range of β-ketoesters with fluoromethyl iodide under mild conditions is described. The uses of lithium tert-butoxide as the base and diglyme as the solvent made great contributions to the high C/O regioselectivity.
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Affiliation(s)
- Tianqi Ding
- School of Chemical Engineering , Nanjing University of Science and Technology , Nanjing 210094 , P. R. China
| | - Lvqi Jiang
- School of Chemical Engineering , Nanjing University of Science and Technology , Nanjing 210094 , P. R. China
| | - Jie Yang
- School of Chemical Engineering , Nanjing University of Science and Technology , Nanjing 210094 , P. R. China
| | - Yimin Xu
- School of Chemical Engineering , Nanjing University of Science and Technology , Nanjing 210094 , P. R. China
| | - Guixiang Wang
- School of Chemical Engineering , Nanjing University of Science and Technology , Nanjing 210094 , P. R. China
| | - Wenbin Yi
- School of Chemical Engineering , Nanjing University of Science and Technology , Nanjing 210094 , P. R. China
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32
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Affiliation(s)
- Nuo-Yi Wu
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
| | - Xiu-Hua Xu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Science, 345 Lingling Lu, Shanghai 200032, China
| | - Feng-Ling Qing
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Science, 345 Lingling Lu, Shanghai 200032, China
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33
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Yang Y, Zhou Q, Cai J, Xue T, Liu Y, Jiang Y, Su Y, Chung L, Vicic DA. Exploiting the trifluoroethyl group as a precatalyst ligand in nickel-catalyzed Suzuki-type alkylations. Chem Sci 2019; 10:5275-5282. [PMID: 31191883 PMCID: PMC6540912 DOI: 10.1039/c9sc00554d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 04/16/2019] [Indexed: 01/01/2023] Open
Abstract
We report herein the exploitment of the partially fluorinated trifluoroethyl as precatalyst ligands in nickel-catalyzed Suzuki-type alkylation and fluoroalkylation coupling reactions. Compared with the [L n NiII(aryl)(X)] precatalysts, the unique characters of bis-trifluoroethyl ligands imparted precatalyst [(bipy)Ni(CH2CF3)2] with bench-top stability, good solubilities in organic media and interesting catalytic activities. Preliminary mechanistic studies reveal that an eliminative extrusion of a vinylidene difluoride (VDF, CH2[double bond, length as m-dash]CF2) mask from [(bipy)Ni(CH2CF3)2] is a critical step for the initiation of a catalytic reaction.
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Affiliation(s)
- Yi Yang
- Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan , School of Chemistry and Environmental Engineering , Sichuan University of Science & Engineering , 180 Xueyuan Street, Huixing Lu , Zigong , Sichuan 643000 , China .
| | - Qinghai Zhou
- Shenzhen Grubbs Institute and Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China .
| | - Junjie Cai
- Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan , School of Chemistry and Environmental Engineering , Sichuan University of Science & Engineering , 180 Xueyuan Street, Huixing Lu , Zigong , Sichuan 643000 , China .
| | - Teng Xue
- Department of Chemistry , Lehigh University , 6 E. Packer Ave. , Bethlehem , PA 18015 , USA .
| | - Yingle Liu
- Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan , School of Chemistry and Environmental Engineering , Sichuan University of Science & Engineering , 180 Xueyuan Street, Huixing Lu , Zigong , Sichuan 643000 , China .
| | - Yan Jiang
- Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan , School of Chemistry and Environmental Engineering , Sichuan University of Science & Engineering , 180 Xueyuan Street, Huixing Lu , Zigong , Sichuan 643000 , China .
| | - Yumei Su
- Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan , School of Chemistry and Environmental Engineering , Sichuan University of Science & Engineering , 180 Xueyuan Street, Huixing Lu , Zigong , Sichuan 643000 , China .
| | - Lungwa Chung
- Shenzhen Grubbs Institute and Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China .
| | - David A Vicic
- Department of Chemistry , Lehigh University , 6 E. Packer Ave. , Bethlehem , PA 18015 , USA .
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34
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Zhang K, Bian K, Li C, Sheng J, Li Y, Wang X. Nickel‐Catalyzed Carbofluoroalkylation of 1,3‐Enynes to Access Structurally Diverse Fluoroalkylated Allenes. Angew Chem Int Ed Engl 2019; 58:5069-5074. [DOI: 10.1002/anie.201813184] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Revised: 02/14/2019] [Indexed: 12/29/2022]
Affiliation(s)
- Kai‐Fan Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of ChemistryCenter for Excellence in Molecular Synthesis of CASUniversity of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Kang‐Jie Bian
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of ChemistryCenter for Excellence in Molecular Synthesis of CASUniversity of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Chao Li
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of ChemistryCenter for Excellence in Molecular Synthesis of CASUniversity of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Jie Sheng
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of ChemistryCenter for Excellence in Molecular Synthesis of CASUniversity of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Yan Li
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of ChemistryCenter for Excellence in Molecular Synthesis of CASUniversity of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Xi‐Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of ChemistryCenter for Excellence in Molecular Synthesis of CASUniversity of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
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35
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Kim Y, Kim DY. Synthesis of Fluoromethyl‐Substituted Cyclopentanones via Radical Fluorination and 1,2‐Alkyl Migration Cascade of Alkenyl Cyclobutanols. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900029] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yubin Kim
- Department of ChemistrySoonchunhyang University Asan Chungnam 31538 Republic of Korea
| | - Dae Young Kim
- Department of ChemistrySoonchunhyang University Asan Chungnam 31538 Republic of Korea
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36
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Sap JBI, Wilson TC, Kee CW, Straathof NJW, Ende CWA, Mukherjee P, Zhang L, Genicot C, Gouverneur V. Synthesis of 18F-difluoromethylarenes using aryl boronic acids, ethyl bromofluoroacetate and [ 18F]fluoride. Chem Sci 2019; 10:3237-3241. [PMID: 30996907 PMCID: PMC6429591 DOI: 10.1039/c8sc05096a] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 01/28/2019] [Indexed: 01/10/2023] Open
Abstract
Herein, we report the radiosynthesis of 18F-difluoromethylarenes via the assembly of three components, a boron reagent, ethyl bromofluoroacetate, and cyclotron-produced non-carrier added [18F]fluoride. The two key steps are a copper-catalysed cross-coupling reaction, and a Mn-mediated 18F-fluorodecarboxylation.
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Affiliation(s)
- Jeroen B I Sap
- Chemistry Research Laboratory , Department of Chemistry , Oxford University , OX1 3TA Oxford , UK . ; Tel: +44 (0)1865 285002
| | - Thomas C Wilson
- Chemistry Research Laboratory , Department of Chemistry , Oxford University , OX1 3TA Oxford , UK . ; Tel: +44 (0)1865 285002
| | - Choon Wee Kee
- Chemistry Research Laboratory , Department of Chemistry , Oxford University , OX1 3TA Oxford , UK . ; Tel: +44 (0)1865 285002
| | - Natan J W Straathof
- Chemistry Research Laboratory , Department of Chemistry , Oxford University , OX1 3TA Oxford , UK . ; Tel: +44 (0)1865 285002
| | - Christopher W Am Ende
- Pfizer Inc., Medicine Design , Eastern Point Road, Groton, Connecticut 06340, and 1 Portland Street , Cambridge , Massachusetts 02139 , USA
| | - Paramita Mukherjee
- Pfizer Inc., Medicine Design , Eastern Point Road, Groton, Connecticut 06340, and 1 Portland Street , Cambridge , Massachusetts 02139 , USA
| | - Lei Zhang
- Pfizer Inc., Medicine Design , Eastern Point Road, Groton, Connecticut 06340, and 1 Portland Street , Cambridge , Massachusetts 02139 , USA
| | - Christophe Genicot
- Global Chemistry, UCB New Medicines , UCB Biopharma Sprl , 1420 Braine-L'Alleud , Belgium
| | - Véronique Gouverneur
- Chemistry Research Laboratory , Department of Chemistry , Oxford University , OX1 3TA Oxford , UK . ; Tel: +44 (0)1865 285002
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37
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Zhang K, Bian K, Li C, Sheng J, Li Y, Wang X. Nickel‐Catalyzed Carbofluoroalkylation of 1,3‐Enynes to Access Structurally Diverse Fluoroalkylated Allenes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201813184] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Kai‐Fan Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of ChemistryCenter for Excellence in Molecular Synthesis of CASUniversity of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Kang‐Jie Bian
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of ChemistryCenter for Excellence in Molecular Synthesis of CASUniversity of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Chao Li
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of ChemistryCenter for Excellence in Molecular Synthesis of CASUniversity of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Jie Sheng
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of ChemistryCenter for Excellence in Molecular Synthesis of CASUniversity of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Yan Li
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of ChemistryCenter for Excellence in Molecular Synthesis of CASUniversity of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Xi‐Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of ChemistryCenter for Excellence in Molecular Synthesis of CASUniversity of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
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38
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Tang WK, Xu ZW, Xu J, Tang F, Li XX, Dai JJ, Xu HJ, Feng YS. Irradiation-Induced Cobaloxime-Catalyzed C-H Monofluoroalkylation of Styrenes at Room Temperature. Org Lett 2019; 21:196-200. [PMID: 30550293 DOI: 10.1021/acs.orglett.8b03656] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A cobaloxime-catalyzed photochemical synthesis of allyl monofluorides from styrenes is described herein. This method is characterized by mild reaction conditions, low-cost catalyst, and broad substrate scope. Furthermore, this convenient method will provide a facile synthesis toward novel monofluoroalkylated natural product and pharmaceutical derivatives. Mechanistic investigations indicate that a monofluoroalkyl radical is involved in the catalytic cycle.
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Affiliation(s)
- Wei-Ke Tang
- Anhui Province Key Laboratory of Advance Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering , Hefei University of Technology , Hefei 230009 , P. R. China
| | - Zhuo-Wei Xu
- Anhui Province Key Laboratory of Advance Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering , Hefei University of Technology , Hefei 230009 , P. R. China
| | - Jun Xu
- School of Food and Biological Engineering , Hefei University of Technology , Hefei 230009 , P. R. China
| | - Fei Tang
- Anhui Province Key Laboratory of Advance Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering , Hefei University of Technology , Hefei 230009 , P. R. China
| | - Xiao-Xuan Li
- Anhui Province Key Laboratory of Advance Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering , Hefei University of Technology , Hefei 230009 , P. R. China
| | - Jian-Jun Dai
- School of Food and Biological Engineering , Hefei University of Technology , Hefei 230009 , P. R. China
| | - Hua-Jian Xu
- Anhui Province Key Laboratory of Advance Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering , Hefei University of Technology , Hefei 230009 , P. R. China.,School of Food and Biological Engineering , Hefei University of Technology , Hefei 230009 , P. R. China
| | - Yi-Si Feng
- Anhui Province Key Laboratory of Advance Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering , Hefei University of Technology , Hefei 230009 , P. R. China.,Anhui Provincial Laboratory of Heterocyclic Chemistry , Maanshan 243110 , P. R. China
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39
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Yang Y, Cai J, Luo G, Jiang Y, Su Y, Su Y, Li C, Zheng Y, Zeng J, Liu Y. Nickel-catalyzed fluoroethylation of arylboronic acids via Suzuki-type coupling. Org Chem Front 2019. [DOI: 10.1039/c9qo00066f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A new and step-economic method for the synthesis of homobenzylic fluorides through nickel-catalyzed Suzuki-type fluoroethylation coupling is developed.
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Affiliation(s)
- Yi Yang
- Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan
- Sichuan University of Science & Engineering
- Zigong
- China
| | - Junjie Cai
- Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan
- Sichuan University of Science & Engineering
- Zigong
- China
| | - Gen Luo
- Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan
- Sichuan University of Science & Engineering
- Zigong
- China
| | - Yan Jiang
- Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan
- Sichuan University of Science & Engineering
- Zigong
- China
| | - Yumei Su
- Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan
- Sichuan University of Science & Engineering
- Zigong
- China
| | - Yang Su
- Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan
- Sichuan University of Science & Engineering
- Zigong
- China
| | - Chaolin Li
- Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan
- Sichuan University of Science & Engineering
- Zigong
- China
| | - Yubin Zheng
- Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan
- Sichuan University of Science & Engineering
- Zigong
- China
| | - Jijiao Zeng
- Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan
- Sichuan University of Science & Engineering
- Zigong
- China
| | - Yingle Liu
- Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan
- Sichuan University of Science & Engineering
- Zigong
- China
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40
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Yin H, Sheng J, Zhang KF, Zhang ZQ, Bian KJ, Wang XS. Nickel-catalyzed monofluoromethylation of (hetero)aryl bromides via reductive cross-coupling. Chem Commun (Camb) 2019; 55:7635-7638. [DOI: 10.1039/c9cc03737c] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Nickel-catalyzed direct monofluoromethylation of (hetero)aryl bromides with industrial raw material BrCH2F by reductive cross-coupling has been developed.
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Affiliation(s)
- Han Yin
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Jie Sheng
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry
- University of Science and Technology of China
- Hefei
- P. R. China
- School of Environment and Civil Engineering
| | - Kai-Fan Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Zi-Qi Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Kang-Jie Bian
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Xi-Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry
- University of Science and Technology of China
- Hefei
- P. R. China
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41
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Lv XL, Wang C, Wang QL, Shu W. Rapid Synthesis of γ-Arylated Carbonyls Enabled by the Merge of Copper- and Photocatalytic Radical Relay Alkylarylation of Alkenes. Org Lett 2018; 21:56-59. [PMID: 30543433 DOI: 10.1021/acs.orglett.8b03485] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The development of mild and practical methods for the γ-arylation of carbonyl compounds is an ongoing challenge in organic synthesis. The first formal γ-arylation of carbonyl compounds via radical relay cross-coupling of α-bromocarbonyl precursors with boronic acids in the presence of alkenes is reported. This directing-group-free protocol allows for the rapid and straightforward access to a wide range of γ-arylated esters, ketones, and amides under ambient conditions with excellent functional group tolerance.
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Affiliation(s)
- Xu-Lu Lv
- Department of Chemistry and Shenzhen Grubbs Institute , Southern University of Science and Technology , 518055 Shenzhen , China
| | - Cong Wang
- Department of Chemistry and Shenzhen Grubbs Institute , Southern University of Science and Technology , 518055 Shenzhen , China
| | - Qiao-Li Wang
- Department of Chemistry and Shenzhen Grubbs Institute , Southern University of Science and Technology , 518055 Shenzhen , China
| | - Wei Shu
- Department of Chemistry and Shenzhen Grubbs Institute , Southern University of Science and Technology , 518055 Shenzhen , China.,State Key Laboratory of Elemento-Organic Chemistry , Nankai University , 300071 Tianjin , China
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42
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Cobalt-catalyzed difluoroalkylation of tertiary aryl ketones for facile synthesis of quaternary alkyl difluorides. Nat Commun 2018; 9:4951. [PMID: 30470757 PMCID: PMC6251884 DOI: 10.1038/s41467-018-07525-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 11/08/2018] [Indexed: 11/08/2022] Open
Abstract
The selective incorporation of gem-difluoroalkyl groups into biologically active molecules has long been used as an efficient strategy for drug design and discovery. However, the catalytic C(sp3)-CF2 bond-forming cross-coupling reaction for selective incorporation of difluoromethylene group into diverse alkyl chains, especially more sterically demanding secondary and tertiary functionalized alkanes, still remains as a major challenge. Herein, we describe a cobalt-catalyzed difluoroalkylation of tertiary aryl ketones for facile synthesis of quaternary alkyl difluorides, which exhibited high efficiency, broad scope and mild conditions. The synthetic utility of this method is demonstrated by late-stage difluoroalkylation of donepezil, a well-known acetylcholinesterase inhibitor used to treat the Alzheimer's disease. Preliminary mechanistic investigations indicate that a difluoroalkyl radical is involved in a Co(I)/Co(III) catalytic cycle. This cobalt-catalyzed fluoroalkylation thus offers insights into an efficient way for the synthesis of fluoroalkylated bioactive molecules for drug discovery.
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43
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Rani V, Singh HB, Butcher RJ. NCN Nickel(II) Pincer Complexes of 5‐
tert
‐Butyl‐1,3‐bis(
N
‐substituted benzimidazol‐2′‐yl)benzenes: Solid and Solution State Behaviour. ChemistrySelect 2018. [DOI: 10.1002/slct.201802644] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Varsha Rani
- Department of ChemistryIndian Institute of Technology Bombay Mumbai 400076 India
| | - Harkesh B. Singh
- Department of ChemistryIndian Institute of Technology Bombay Mumbai 400076 India
| | - Ray J. Butcher
- Department of ChemistryHoward University 525 College Street NW, Washington, D.C. 20059 United States
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44
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Tang L, Yang Z, Chang X, Jiao J, Ma X, Rao W, Zhou Q, Zheng L. K 2S 2O 8-Mediated Selective Trifluoromethylacylation and Trifluoromethylarylation of Alkenes under Transition-Metal-Free Conditions: Synthetic Scope and Mechanistic Studies. Org Lett 2018; 20:6520-6525. [PMID: 30289263 DOI: 10.1021/acs.orglett.8b02846] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A practical and efficient method for selective intramolecular radical trifluoromethylacylation and -arylation of alkenes with inexpensive CF3SO2Na and K2S2O8 in aqueous media has been developed, respectively, affording the highly chemoselective synthesis of CF3-functionalized chroman-4-ones and chromanes in satisfactory yields. Control experiments and DFT calculations indicate that the CF3SO2Na/K2S2O8 system is capable of trifluoromethylating the substrate of alkenes without a transition metal catalyst and the oxidation of CF3SO2Na to ·CF3 by K2S2O8 is involved in the rate-determining step.
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Affiliation(s)
- Lin Tang
- College of Chemistry and Chemical Engineering , Xinyang Normal University , Xinyang , Henan 464000 , China.,Henan Province Key Laboratory of Utilization of Non-metallic Mineral in the Sourth of Henan , Xinyang , Henan 464000 , China
| | - Zhen Yang
- College of Chemistry and Chemical Engineering , Xinyang Normal University , Xinyang , Henan 464000 , China
| | - Xueping Chang
- College of Chemistry and Chemical Engineering , Xinyang Normal University , Xinyang , Henan 464000 , China
| | - Jingchao Jiao
- College of Chemistry and Chemical Engineering , Xinyang Normal University , Xinyang , Henan 464000 , China
| | - Xiantao Ma
- College of Chemistry and Chemical Engineering , Xinyang Normal University , Xinyang , Henan 464000 , China
| | - Weihao Rao
- College of Chemistry and Chemical Engineering , Xinyang Normal University , Xinyang , Henan 464000 , China
| | - Qiuju Zhou
- College of Chemistry and Chemical Engineering , Xinyang Normal University , Xinyang , Henan 464000 , China
| | - Lingyun Zheng
- College of Chemistry and Chemical Engineering , Xinyang Normal University , Xinyang , Henan 464000 , China
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45
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Synthesis of 2,2-diaryl-1,1-difluoroethenes via Pd-catalyzed dehydrosulfonylative cross-coupling of α-[difluoro(phenylsulfonyl)methyl]benzyl tosylates with arylboronic acids. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.04.054] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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46
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Soni V, Sharma DM, Punji B. Nickel-Catalyzed Regioselective C(2)-H Difluoroalkylation of Indoles with Difluoroalkyl Bromides. Chem Asian J 2018; 13:2516-2521. [PMID: 29722157 DOI: 10.1002/asia.201800504] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 05/01/2018] [Indexed: 12/20/2022]
Abstract
Regioselective C(2)-H difluoroalkylation of C-3 unsubstituted indoles with commonly available fluoroalkyl bromides is successfully achieved employing a simple nickel catalyst system, (DME)NiCl2 /Xantphos. This methodology shows excellent regioselectivity and exhibits a broad substrate scope. Various functional groups, such as -OMe, -F, and -Br, are tolerated on the indole backbone to give the difluoroalkylated products in moderate to good yields. Preliminary mechanistic findings demonstrate that the reaction is homogeneous in nature and involves a radical manifold. Synthetic utility of this nickel-catalyzed method is demonstrated by synthesizing melatonin receptor antagonist Luzindole derivative.
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Affiliation(s)
- Vineeta Soni
- Organometallic Synthesis and Catalysis Group, Chemical Engineering Division, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, 411 008, Maharastra, India
| | - Dipesh M Sharma
- Organometallic Synthesis and Catalysis Group, Chemical Engineering Division, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, 411 008, Maharastra, India
| | - Benudhar Punji
- Organometallic Synthesis and Catalysis Group, Chemical Engineering Division, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, 411 008, Maharastra, India
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47
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Wang ZY, Wan JH, Wang GY, Wang R, Jin RX, Lan Q, Wang XS. Terminal C(sp3) H alkylation of internal alkenes via Ni/H-catalyzed isomerization. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.05.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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48
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Sheng J, Ni HQ, Zhang HR, Zhang KF, Wang YN, Wang XS. Nickel-Catalyzed Reductive Cross-Coupling of Aryl Halides with Monofluoroalkyl Halides for Late-Stage Monofluoroalkylation. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803228] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Jie Sheng
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry; Center for Excellence in Molecular Synthesis of CAS; University of Science and Technology of China; 96 Jinzhai Road Hefei Anhui 230026 China
| | - Hui-Qi Ni
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry; Center for Excellence in Molecular Synthesis of CAS; University of Science and Technology of China; 96 Jinzhai Road Hefei Anhui 230026 China
| | - Hao-Ran Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry; Center for Excellence in Molecular Synthesis of CAS; University of Science and Technology of China; 96 Jinzhai Road Hefei Anhui 230026 China
| | - Kai-Fan Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry; Center for Excellence in Molecular Synthesis of CAS; University of Science and Technology of China; 96 Jinzhai Road Hefei Anhui 230026 China
| | - Yi-Ning Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry; Center for Excellence in Molecular Synthesis of CAS; University of Science and Technology of China; 96 Jinzhai Road Hefei Anhui 230026 China
| | - Xi-Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry; Center for Excellence in Molecular Synthesis of CAS; University of Science and Technology of China; 96 Jinzhai Road Hefei Anhui 230026 China
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49
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Sheng J, Ni HQ, Zhang HR, Zhang KF, Wang YN, Wang XS. Nickel-Catalyzed Reductive Cross-Coupling of Aryl Halides with Monofluoroalkyl Halides for Late-Stage Monofluoroalkylation. Angew Chem Int Ed Engl 2018; 57:7634-7639. [PMID: 29682840 DOI: 10.1002/anie.201803228] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Indexed: 12/11/2022]
Abstract
A combinatorial nickel-catalyzed monofluoroalkylation of aryl halides with unactivated fluoroalkyl halides by reductive cross-coupling has been developed. This method demonstrated high efficiency, mild conditions, and excellent functional-group tolerance, thus enabling the late-stage monofluoroalkylation of diverse drugs. The key to success was the combination of diverse readily available bidentate and monodentate pyridine-type nitrogen ligands with nickel, which in situ generated a variety of readily tunable catalysts to promote fluoroalkylation with broad scope with respect to both coupling partners. This combinatorial catalysis strategy offers a solution for nickel-catalyzed reductive cross-coupling reactions and provides an efficient way to synthesize fluoroalkylated druglike molecules for drug discovery.
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Affiliation(s)
- Jie Sheng
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China
| | - Hui-Qi Ni
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China
| | - Hao-Ran Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China
| | - Kai-Fan Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China
| | - Yi-Ning Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China
| | - Xi-Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui, 230026, China
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50
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Gao X, Geng Y, Han S, Liang A, Li J, Zou D, Wu Y, Wu Y. Nickel-catalyzed C H trifluoromethylation of pyridine N-oxides with Togni’s reagent. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.02.077] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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