1
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Shi DW, Yue HQ, Li M, Liu J, Wang CC, Yang SD, Yang B. Tf 2O-Mediated P(O)-N Bond Formation of Either P(O)-OH or P(O)-H Reagents with Multitype Amines. J Org Chem 2024; 89:6729-6739. [PMID: 38690961 DOI: 10.1021/acs.joc.3c02970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
We have developed a Tf2O-mediated approach for the direct amination of either P(O)-OH or P(O)-H reagents with a variety of aliphatic or aromatic amines. Without the requirement of precious metals and toxic reagents, this protocol provides an alternative route to various phosphinamides and phosphoramides. The reaction proceeds under simple and mild conditions and can be effectively scaled up with similar efficiency.
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Affiliation(s)
- Da-Wei Shi
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, P. R. China
| | - Hui-Qi Yue
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, P. R. China
| | - Ming Li
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, P. R. China
| | - Jie Liu
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, P. R. China
| | - Chang-Cheng Wang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, P. R. China
| | - Shang-Dong Yang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Bin Yang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, P. R. China
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2
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Ouyang Y, Qing FL. Photoredox Catalyzed Radical Fluoroalkylation with Non-Classical Fluorinated Reagents. J Org Chem 2024; 89:2815-2824. [PMID: 38385430 DOI: 10.1021/acs.joc.3c02815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
The emergence of photocatalysis has greatly advanced radical fluoroalkylation reactions. Central to this advancement is the introduction and refinement of radical reagents, which play a pivotal role in driving these reactions forward. Intriguingly, some of these reagents, previously not recognized for their radical properties, have emerged as key players in this area. In this Perspective, we provide an overview of four representative reagents pioneered by our laboratory, which have subsequently garnered extensive application in broader research contexts, including difluorocarbene precursors bromodifluoromethylphosphonium bromide, electrophilic sulfonylation reagent triflic anhydride, and nucleophilic trifluoromethylation reagent methyl fluorosulfonyldifluoroacetate (Chen's reagent). The integration of phosphonium reagents, triflic anhydride, and methyl fluorosulfonyldifluoroacetate into photocatalysis has enabled some unexpected reactivities and now notably expanded the capabilities in radical difluoromethylation, trifluoromethylation, and difluoroalkylation. Our discussion highlights how these atypical reagents have enriched the toolkit available for radical fluoroalkylations, offering insights that could inspire future research and application in this area.
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Affiliation(s)
- Yao Ouyang
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Feng-Ling Qing
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
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3
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Yue HQ, Shi DW, Li M, Gao SQ, Sun MX, Zhang S, Yang SD, Yang B. Tf 2O/DMSO-mediated dual activation of aryl phosphinate to access various aryl phosphonates. Chem Commun (Camb) 2023; 59:10817-10820. [PMID: 37602683 DOI: 10.1039/d3cc03250g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
A metal-free method for the dual activation of aryl phosphinate has been developed; the P-H and P-O bonds are sequentially activated by the Tf2O/DMSO system. Without the requirement of metals and unstable P-reagents, this one-pot procedure provides a convenient and practical access to a variety of aryl phosphonates. A mechanism involving twice generation of electrophilic P-species and two SN-processes is proposed on the basis of the control experiments.
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Affiliation(s)
- Hui-Qi Yue
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, People's Republic of China.
| | - Da-Wei Shi
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, People's Republic of China.
| | - Ming Li
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, People's Republic of China.
| | - Si-Qi Gao
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, People's Republic of China.
| | - Mu-Xin Sun
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, People's Republic of China.
| | - Shun Zhang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, People's Republic of China.
| | - Shang-Dong Yang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Bin Yang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, People's Republic of China.
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4
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Qin Q, Cheng Z, Jiao N. Recent Applications of Trifluoromethanesulfonic Anhydride in Organic Synthesis. Angew Chem Int Ed Engl 2023; 62:e202215008. [PMID: 36541579 DOI: 10.1002/anie.202215008] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/16/2022] [Accepted: 12/21/2022] [Indexed: 12/24/2022]
Abstract
Trifluoromethanesulfonic anhydride has been widely used in synthetic organic chemistry, not only for the conversion of various oxygen-containing compounds to the triflates, but also for the electrophilic activation and further conversion of amides, sulfoxides, and phosphorus oxides. In recent years, the utilization of Tf2 O as an activator for nitrogen-containing heterocycles, nitriles and nitro groups has become a promising tool for the development of new valuable methods with considerable success. In addition, Tf2 O has been used as an efficient radical trifluoromethylation and trifluoromethylthiolation reagent due to the contained SO2 CF3 fragment, and significant progress has been made in this area. This review summarizes the recent progress in the applications of Tf2 O in the above two aspects, and aims to illustrate the role and potential application of this reagent in organic synthesis.
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Affiliation(s)
- Qixue Qin
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, Shandong, 266109, China
| | - Zengrui Cheng
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing, 100191, China
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing, 100191, China.,Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, Shanghai, 200062, China
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5
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Chen F, Xu XH, Chu L, Qing FL. Visible-Light-Induced Nickel-Catalyzed Radical Cross-Couplings to Access α-Aryl-α-trifluoromethyl Alcohols. Org Lett 2022; 24:9332-9336. [PMID: 36484514 DOI: 10.1021/acs.orglett.2c03943] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A photochemically induced nickel-catalyzed radical cross-coupling of phthalimido trifluoroethanol with aryl bromides to furnish α-aryl-α-trifluoromethyl alcohols is reported. This reaction proceeds via a photoinduced charge transfer of an electron donor-acceptor complex between Hantzsch ester and phthalimido trifluoroethanol, followed by 1,2-hydrogen atom transfer, to generate the α-hydroxytrifluoroethyl radical for the cross-coupling of aryl bromides. No exogenous photocatalysts or stoichiometric metal reductants are required in this mild and operationally simple protocol. Broad substrate compatibility and excellent functional group tolerance are observed.
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Affiliation(s)
- Feng Chen
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Xiu-Hua Xu
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Lingling Chu
- College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
| | - Feng-Ling Qing
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
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6
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Li Y, Liang X, Niu K, Gu J, Liu F, Xia Q, Wang Q, Zhang W. Visible-Light-Induced Photocatalyst-Free Radical Trifluoromethylation. Org Lett 2022; 24:5918-5923. [PMID: 35929868 DOI: 10.1021/acs.orglett.2c02150] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
An attractive, versatile, and operationally simple, visible-light-induced, transition-metal-free, photocatalyst-free, and oxidant-free trifluoromethylation has been demonstrated. Triflic anhydride (Tf2O), being inexpensive and readily available, was chosen as the radical trifluoromethyl source. Thianthrene was used as a recyclable Tf2O-activating reagent, and a high-yielding and scalable trifluoromethylation reaction was achieved. Density functional theory and mechanistic studies showed that a free radical homolytic process excited by visible light is involved in this reaction, generating a key trifluoromethyl radical intermediate.
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Affiliation(s)
- Yufei Li
- Jiangsu Key Laboratory of Pesticide Science, Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Xin Liang
- Jiangsu Key Laboratory of Pesticide Science, Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Kaikai Niu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Jun Gu
- Jiangsu Key Laboratory of Pesticide Science, Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Fang Liu
- Jiangsu Key Laboratory of Pesticide Science, Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Qing Xia
- Jiangsu Key Laboratory of Pesticide Science, Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Weihua Zhang
- Jiangsu Key Laboratory of Pesticide Science, Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
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7
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Mumtaz Y, Liu J. Iodine‐catalyzed Regioselective Electrophilic (Fluoroalkyl) Sulfenylation of Indoles with (RSO2)2O via Deoxygenative Reduction. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200104] [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)
- Yasir Mumtaz
- Nanjing University of Science and Technology Department of Chemistry PAKISTAN
| | - Jie Liu
- Nanjing University of Science and Technology Department of Chemistry 200,Xiaolingwei Street 210094 Nanjing CHINA
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8
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Azimi SB, Asnaashariisfahani M, Azizi B, Mohammadi E, Ghaffar Ebadi A, Vessally E. Hydro-trifluoromethyl(thiol)ation of alkenes: a review*. J Sulphur Chem 2022. [DOI: 10.1080/17415993.2022.2072687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Seyedeh Bahareh Azimi
- Assessment and Environment Risks Department, Research Center of Envirnment and Sustainable Development (RCESD), Tehran, Iran
| | | | - Bayan Azizi
- Medical Laboratory Sciences Department, College of Health Sciences, University of Human Development, Sulaymaniyah, Iraq
| | | | - Abdol Ghaffar Ebadi
- Department of Agriculture, Jouybar Branch, Islamic Azad University, Jouybar, Iran
| | - Esmail Vessally
- Department of Chemistry, Payame Noor University, Tehran, Iran
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9
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Xin J, Chen T, Tang P. Direct Trifluoromethylthiolation of Aziridines: Cation-Controlled Diverse Synthesis of Trifluoromethylthiolated Isothiocyanates and Amines. Org Lett 2022; 24:2035-2039. [PMID: 35261244 DOI: 10.1021/acs.orglett.2c00558] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The direct trifluoromethylthiolation of aziridines with AgSCF3 and iodides is reported. The β-trifluoromethylthiolated isothiocyanates and amines were selectively obtained by the changed cation of iodide. This strategy is tolerant to a wide range of functional groups with good yields and regioselectivities. In addition, the isothiocyanates can be used for further synthetic manipulation, which offered a convenient approach for SCF3-containing compounds.
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Affiliation(s)
- Jingrui Xin
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Tengying Chen
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Pingping Tang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China.,Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
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10
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Zhu YY, Liu S, Huang Y, Qing FL, Xu XH. Photoredox catalyzed difluoro(phenylthio)methylation of 2,3-allenoic acids with {difluoro(phenylthio)methyl}triphenylphosphonium triflate. J Fluor Chem 2022. [DOI: 10.1016/j.jfluchem.2022.109969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Deuterated N-difluoromethylthiophthalimide: A stable, scalable reagent for radical and electrophilic deuteriodifluoromethylthiolations. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Shi Y, Xiao T, Xia D, Yang W. SCF 3 Radical Initiated Cascade Reaction of Unsaturated Hydrocarbon. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202203041] [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]
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13
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Saroha M, Sindhu J, Kumar S, Bhasin KK, Khurana JM, Varma RS, Tomar D. Transition Metal‐Free Sulfenylation of C−H Bonds for C−S Bond Formation in Recent Years: Mechanistic Approach and Promising Future. ChemistrySelect 2021. [DOI: 10.1002/slct.202102042] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Mohit Saroha
- Department of Chemistry University of Delhi Delhi 110007 India
| | - Jayant Sindhu
- Department of Chemistry, COBS&H, CCSHAU Hisar Haryana 125004 India
| | - Sudhir Kumar
- Department of Chemistry, COBS&H, CCSHAU Hisar Haryana 125004 India
| | - Kuldip K. Bhasin
- Department of Chemistry & Centre of Advanced Studies in Chemistry Panjab University Chandigarh 160014 India
| | | | - Rajender S. Varma
- Regional Centre of Advanced Technologies and Materials Palacký University in Olomouc Šlechtitelů 27 783 71 Olomouc Czech Republic
| | - Deepak Tomar
- Department of Chemistry R. K. P. G. College Shamli Uttar Pradesh 247776 India
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14
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Xiang H, Liu J, Wang J, Jiang L, Yi W. Synergistic Effect of Squaric Acid in Bromine-Catalyzed Deoxygenation of Sulfonyl Derivatives: Mechanistic Investigations and Synthetic Applications in Electrophilic (Fluoroalkyl)sulfenylation. Org Lett 2021; 24:181-185. [PMID: 34870437 DOI: 10.1021/acs.orglett.1c03813] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A method for electrophilic (fluoroalkyl)sulfenylation of nucleophiles by collaborative CTAB- and squaric acid-promoted deoxygenation of sulfonyl derivatives is reported. Mechanistic studies indicate that squaric acid dramatically decreased the energy barrier in the first step of deoxygenation. The mild deoxygenation process enables the reduction of a wide range of functionalized sulfonyl chlorides as well as sulfonic anhydrides. The novel method represents an operationally simple protocol using readily available reagents and exhibits broad functional group tolerance.
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Affiliation(s)
- Haonan Xiang
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Jie Liu
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Jieping Wang
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Lvqi Jiang
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Wenbin Yi
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.,Key Laboratory of Organofluorine Chemistry, Shanghai Institute Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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15
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Zhu B, Wu Z, Wang L, Lu B, Trabelsi T, Francisco JS, Zeng X. Matrix-isolated trifluoromethylthiyl radical: sulfur atom transfer, isomerization and oxidation reactions. Chem Commun (Camb) 2021; 57:12143-12146. [PMID: 34724519 DOI: 10.1039/d1cc04654c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
By high-vacuum flash pyrolysis of bis(trifluoromethyl)disulfane oxide (CF3S(O)SCF3) at 400 °C, the elusive trifluoromethylthiyl radical (CF3S˙) has been efficiently generated in the gas phase. Subsequent isolation of CF3S˙ in cryogenic matrixes (Ne, Ar, and N2) allows a first time characterization with IR and UV-vis spectroscopy by combining with computations at the CCSD(T)/aug-cc-pV(T + d)Z level. In addition to the photo-induced sulfur atom transfer (SAT) from CF3S˙ to N2 and CO and the isomerization to ˙CF2SF, the O2-oxidation via the intermediacy of the novel thiylperoxy radical CF3SOO˙ has been observed.
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Affiliation(s)
- Bifeng Zhu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai 200433, China.
| | - Zhuang Wu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai 200433, China.
| | - Lina Wang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai 200433, China.
| | - Bo Lu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai 200433, China.
| | - Tarek Trabelsi
- Department of Earth and Environment Science and Department of Chemistry, University of Pennsylvania, Pennsylvania, 19104-6243, USA.
| | - Joseph S Francisco
- Department of Earth and Environment Science and Department of Chemistry, University of Pennsylvania, Pennsylvania, 19104-6243, USA.
| | - Xiaoqing Zeng
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai 200433, China.
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16
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Zhang M, Lin JH, Xiao JC. A Readily Available Trifluoromethylation Reagent and Its Difunctionalization of Alkenes. Org Lett 2021; 23:6079-6083. [PMID: 34296876 DOI: 10.1021/acs.orglett.1c02146] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Trifluoromethyl substitution is notably popular in pharmaceuticals and agrochemicals; however, trifluoromethylated compounds normally rely on the use of cost-prohibitive or gaseous trifluoromethylating reagents, which diminishes the general applicability of these methods. Herein an efficient trifluoromethylation reagent trifluoromethylsulfonyl-pyridinium salt (TFSP) was reported, which can be readily prepared from cheap and easily available bulk industrial feedstocks. TFSP can generate a trifluoromethyl radical under photocatalysis and realize the effective azido- or cyano-trifluoromethylation reactions of alkenes.
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Affiliation(s)
- Min Zhang
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Jin-Hong Lin
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Ji-Chang Xiao
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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17
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Chen F, Xu XH, Qing FL. Photoredox-Catalyzed Addition of Dibromofluoromethane to Alkenes: Direct Synthesis of 1-Bromo-1-fluoroalkanes. Org Lett 2021; 23:2364-2369. [PMID: 33666440 DOI: 10.1021/acs.orglett.1c00639] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Reported herein is a direct and efficient route to 1-bromo-1-fluoroalkanes through the reaction of unactivated alkenes with dibromofluoromethane under photoredox catalysis. The key to the success of these addition reactions is the employment of a suitable photoredox catalyst. In particular, hydro- and bromo-bromofluoromethylated products were chemoselectively formed using THF and DMF/H2O as solvents, respectively. Furthermore, the synthetic application of the prepared 1-bromo-1-fluoroalkanes has been demonstrated by their transformation into a variety of fluorine-containing compounds.
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Affiliation(s)
- Feng Chen
- 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
| | - 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 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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18
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Lu K, Xi X, Zhou T, Lei L, Li Q, Zhao X. Copper-catalysed direct difluoromethylselenolation of aryl boronic acids with Se-(difluoromethyl) 4-methylbenzenesulfonoselenoate. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152897] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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19
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Li X, Zhang Q, Zhang W, Ma J, Wang Y, Pan Y. Metal-free visible-light-enabled vicinal trifluoromethyl dithiolation of unactivated alkenes. Beilstein J Org Chem 2021; 17:551-557. [PMID: 33727978 PMCID: PMC7934782 DOI: 10.3762/bjoc.17.49] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 02/12/2021] [Indexed: 01/28/2023] Open
Abstract
The difunctionalization of alkenes involving a trifluoromethylthio group (SCF3) for the conversion of versatile and readily available olefins into structurally more complex molecules has been successfully studied. However, the disproportionate dithiolation of alkenes is unknown. Herein, a transition-metal-free protocol is presented for the vicinal trifluoromethylthio-thiolation of unactivated alkenes via a radical process under mild conditions with a broad substrate scope and excellent tolerance.
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Affiliation(s)
- Xiaojuan Li
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, and Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Qiang Zhang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, and Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Weigang Zhang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, and Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Jinzhu Ma
- School of pharmacy, Wannan Medical College, Wuhu, 241002, China
| | - Yi Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, and Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yi Pan
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, and Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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20
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Yang X, Meng WD, Xu XH, Huang Y. Photoredox-catalyzed 2,2,2-trifluoroethylation and 2,2-difluoroethylation of alkenes with concomitant introduction of a quinoxalin-2(1 H)-one moiety. Org Chem Front 2021. [DOI: 10.1039/d1qo01170g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A photoredox-catalyzed three-component radical cascade reaction of alkenes, quinoxalin-2(1H)-ones, and ICH2CF3/ICH2CF2H is developed.
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Affiliation(s)
- Xiu Yang
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
| | - Wei-Dong Meng
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
| | - Xiu-Hua Xu
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Science, 345 Lingling Lu, Shanghai 200032, China
| | - Yangen Huang
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
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21
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New visible light organo(metal)-photocatalyzed fluoroalkylsulfanylation (RFS-) and fluoroalkylselenolation (RFSe-) reactions of organic substrates. J Fluor Chem 2020. [DOI: 10.1016/j.jfluchem.2020.109652] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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22
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Markovnikov-Type Hydrotrifluoromethylchalcogenation of Unactivated Terminal Alkenes with [Me 4N][XCF 3] (X = S, Se) and TfOH. Molecules 2020; 25:molecules25194535. [PMID: 33022964 PMCID: PMC7582815 DOI: 10.3390/molecules25194535] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 09/30/2020] [Accepted: 09/30/2020] [Indexed: 11/20/2022] Open
Abstract
The first Markovnikov-type hydrotrifluoromethylselenolation of unactivated terminal alkenes with the readily accessible [Me4N][SeCF3] reagent and the superacid TfOH is reported. The reaction proceeded at room temperature under catalyst- and additive-free conditions to give the branched trifluoromethylselenolated products in good yields. This protocol is also applicable to the Markovnikov-type hydrotrifluoromethylthiolation of unactivated terminal alkenes using [Me4N][SCF3]/TfOH, but not to the hydrotrifluoromethoxylation with CsOCF3/TfOH under the same conditions. The successful hydrotrifluoromethylselenolation and hydrotrifluoromethylthiolation showed simplicity and high regioselectivity, taming the sensitive −XCF3 (X = Se, S) anions with TfOH, and offered a convenient method for the straightforward synthesis of branched trifluoromethyl selenoethers and thioethers from unactivated alkenes.
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23
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Zheng C, Huang S, Liu Y, Jiang C, Zhang W, Fang G, Hong J. Geometrically Selective Denitrative Trifluoromethylthiolation of β-Nitrostyrenes with AgSCF 3 for ( E)-Vinyl Trifluoromethyl Thioethers. Org Lett 2020; 22:4868-4872. [PMID: 32479731 DOI: 10.1021/acs.orglett.0c01714] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient copper(II)-promoted denitrative trifluoromethylthiolation under mild reaction conditions has been developed for vinyl trifluoromethyl thioethers to construct Cvinyl-SCF3 bonds with stable AgSCF3 as a source of the trifluoromethylthio. This reaction system tolerates a broad range of functional groups to commendably achieve a high product yield and excellent stereoselectivity of E/Z.
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Affiliation(s)
- Changge Zheng
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China.,School of Chemical Engineering, Xinjiang Agricultural University, Urumqi, Xinjiang Uygur Autonomous Region 830052, P. R. China
| | - Shuai Huang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China
| | - Yang Liu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China
| | - Chao Jiang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China
| | - Wei Zhang
- School of Chemical Engineering, Xinjiang Agricultural University, Urumqi, Xinjiang Uygur Autonomous Region 830052, P. R. China
| | - Ge Fang
- School of Chemical Engineering, Xinjiang Agricultural University, Urumqi, Xinjiang Uygur Autonomous Region 830052, P. R. China
| | - Jianquan Hong
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China
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24
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Wu N, Huang Y, Xu X, Qing F. Copper‐Catalyzed Hydrodifluoroallylation of Terminal Alkynes to Access (
E
)‐1,1‐Difluoro‐1,4‐Dienes. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000492] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Nuo‐Yi Wu
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and BiotechnologyDonghua University 2999 North Renmin Lu Shanghai 201620 People's Republic of China
| | - Yangen Huang
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and BiotechnologyDonghua University 2999 North Renmin Lu Shanghai 201620 People's Republic of 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 ScienceChinese Academy of Science 345 Lingling Lu Shanghai 200032 People's Republic of China
| | - Feng‐Ling Qing
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and BiotechnologyDonghua University 2999 North Renmin Lu Shanghai 201620 People's Republic of China
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of ScienceChinese Academy of Science 345 Lingling Lu Shanghai 200032 People's Republic of China
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25
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Bi MX, Liu S, Huang Y, Xu XH, Qing FL. Cascade trifluoromethylthiolation and cyclization of N-[(3-aryl)propioloyl]indoles. Beilstein J Org Chem 2020; 16:657-662. [PMID: 32318122 PMCID: PMC7155893 DOI: 10.3762/bjoc.16.62] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 03/24/2020] [Indexed: 11/23/2022] Open
Abstract
A cascade oxidative trifluoromethylthiolation and cyclization of N-[(3-aryl)propioloyl]indoles with AgSCF3 is described. This protocol allows for the synthesis of novel bis(trifluoromethylthiolated) or trifluoromethylthiolated pyrrolo[1,2-a]indol-3-ones in moderate to good yields. Mechanistic investigations indicated that radical processes were probably involved in these transformations.
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Affiliation(s)
- Ming-Xi Bi
- 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
| | - Shuai Liu
- 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
| | - Yangen Huang
- 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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26
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Chen HT, Huang Y, Qing FL, Xu XH. Trifluoromethylthiolation of epoxides with AgSCF3: A new access to vinyl trifluoromethyl thioethers. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151628] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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27
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Liu YL, Qing FL, Xu XH. 1,2-Bis(trifluoromethylthiolation) of Aromatic Epoxides with AgSCF 3. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901836] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yin-Li Liu
- 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 Sciences; 345 Lingling Lu 200032 Shanghai China
| | - Feng-Ling Qing
- 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 Sciences; 345 Lingling Lu 200032 Shanghai China
- 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 201620 Shanghai 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 Sciences; 345 Lingling Lu 200032 Shanghai China
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28
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Pan D, Nie G, Jiang S, Li T, Jin Z. Radical reactions promoted by trivalent tertiary phosphines. Org Chem Front 2020. [DOI: 10.1039/d0qo00473a] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The background and recent breakthroughs in the single-electron-transfer (SET) reactions with trivalent tertiary phosphines are summarized and discussed in detail, and an outlook in the developments within this field is provided.
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Affiliation(s)
- Dingwu Pan
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering
- Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education
- Guizhou University
- Guiyang 550025
- China
| | - Guihua Nie
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering
- Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education
- Guizhou University
- Guiyang 550025
- China
| | - Shichun Jiang
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering
- Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education
- Guizhou University
- Guiyang 550025
- China
| | - Tingting Li
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering
- Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education
- Guizhou University
- Guiyang 550025
- China
| | - Zhichao Jin
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering
- Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education
- Guizhou University
- Guiyang 550025
- China
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29
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Tong CL, Xu XH, Qing FL. Oxidative Hydro-, Bromo-, and Chloroheptafluoroisopropylation of Unactivated Alkenes with Heptafluoroisopropyl Silver. Org Lett 2019; 21:9532-9535. [DOI: 10.1021/acs.orglett.9b03705] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Chao-Lai Tong
- 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
| | - 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 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
- 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
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