1
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Remete AM, Nonn M, Kiss L. Palladium‐Catalyzed Arylfluorination of Alkenes: A Powerful New Approach to Organofluorine Compounds. Chemistry 2022; 28:e202202076. [DOI: 10.1002/chem.202202076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Attila Márió Remete
- Institute of Pharmaceutical Chemistry University of Szeged 6720 Szeged, Eötvös u. 6 Hungary
| | - Melinda Nonn
- MTA TTK Lendület Artificial Transporter Research Group Institute of Materials and Environmental Chemistry Research Center for Natural Sciences Hungarian Academy of Sciences Magyar Tudósok krt. 2 1117 Budapest Hungary
| | - Loránd Kiss
- Institute of Organic Chemistry Stereochemistry Research Group Research Centre for Natural Sciences 1117 Budapest Magyar tudósok krt. 2 Hungary
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2
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Huang LL, Lin PP, Li YX, Feng SX, Tu FH, Yang S, Zhao GY, Huang ZS, Wang H, Li Q. Oxidative Fluoroarylation of Benzylidenecyclopropanes with HF·Py and Aryl Iodides via Iodonio-[3,3]-Rearrangement. Org Lett 2022; 24:3389-3394. [PMID: 35486481 DOI: 10.1021/acs.orglett.2c01150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Reported herein is an in situ-generated hypervalent iodine-incorporating fluoroarylation of benzylidenecyclopropanes using commercially available HF·Py and aryl iodides as fluorine and aryl sources, respectively. The reaction proceeds via regioselective 1,2-fluoroiodination of a double bond followed by an iodonio-[3,3]-rearrangement of the formed cyclopropyl-I(III) species. The protocol offers facile access to valuable monofluorinated 1,1-bis-benzyl-alkenes with mild reaction conditions and moderate to good yields. The synthetic utility of the products was demonstrated by further transformations. Preliminary mechanistic studies were conducted.
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Affiliation(s)
- Long-Ling Huang
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Peng-Peng Lin
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Yu-Xin Li
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Si-Xin Feng
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Fang-Hai Tu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Shuang Yang
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Gui-Yang Zhao
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Zhi-Shu Huang
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Honggen Wang
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China
| | - Qingjiang Li
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China.,State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, P. R. China
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3
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Dirican D, Talavera M, Braun T. Fluorination Reactions at a Platinum Carbene Complex: Reaction Routes to SF 3 , S(=O)F and Fluorido Complexes. Chemistry 2021; 27:17707-17712. [PMID: 34634177 PMCID: PMC9298267 DOI: 10.1002/chem.202103311] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Indexed: 01/10/2023]
Abstract
The electron-rich Pt complex [Pt(IMes)2 ] (IMes: [1,3-bis(2,4,6-trimethylphenyl)-2-imidazolinylidine]) can be used as precursor for the syntheses of a variety of fluorido ligand containing compounds. The sulfur fluoride SF4 undergoes a rapid oxidative addition at Pt0 to yield trans-[Pt(F)(SF3 )(IMes)2 ]. A photolytic reaction of SF6 at [Pt(IMes)2 ] in the presence of IMes gave the fluorido complexes trans-[Pt(F)2 (IMes)2 ] and trans-[Pt(F)(SF3 )(IMes)2 ] along with trans-[Pt(F)(SOF)(IMes)2 ] and trans-[Pt(F)(IMes')(IMes)] (IMes': cyclometalated IMes ligand), the latter being products produced by reaction with adventitious water. trans-[Pt(F)(SOF)(IMes)2 ] and trans-[Pt(F)2 (IMes)2 ] were synthesized independently by treatment of [Pt(IMes)2 ] with SOF2 or XeF2 . A reaction of [Pt(IMes)2 ] with a HF source gave trans-[Pt(H)(F)(IMes)2 ], and an intermediate bifluorido complex trans-[Pt(H)(FHF)(IMes)2 ] was identified. Compound trans-[Pt(H)(F)(IMes)2 ] converts in the presence of CsF into trans-[Pt(F)(IMes')(IMes)].
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Affiliation(s)
- Dilcan Dirican
- Humboldt-Universität zu Berlin Institut für ChemieBrook-Taylor-Straße 212489BerlinGermany
| | - Maria Talavera
- Humboldt-Universität zu Berlin Institut für ChemieBrook-Taylor-Straße 212489BerlinGermany
| | - Thomas Braun
- Humboldt-Universität zu Berlin Institut für ChemieBrook-Taylor-Straße 212489BerlinGermany
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4
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Zhang Z, Luo J, Gao H. Rapid Access to Fluorinated Anilides via DAST-Mediated Deoxyfluorination of Arylhydroxylamines. Org Lett 2021; 23:9332-9336. [PMID: 34797084 DOI: 10.1021/acs.orglett.1c03779] [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
A new strategy for the synthesis of fluorinated anilides in the absence of metals and oxidants has been developed. This deoxyfluorination of N-arylhydroxylamines with diethylaminosulfur trifluoride (DAST) proceeded smoothly under mild conditions, and the ortho- or para-fluorinated aromatic amine products were prepared in moderate to good yields. Structurally diverse fluorinated anilides, including heterocyclic and pharmaceutically relevant molecules, can be efficiently constructed by this protocol.
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Affiliation(s)
- Zhuyong Zhang
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China.,School of Chemistry and Chemical Engineering, Shandong University, Ji'nan, Shandong 250100, China
| | - Junfei Luo
- Institute of Mass Spectrometry, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Hongyin Gao
- School of Chemistry and Chemical Engineering, Shandong University, Ji'nan, Shandong 250100, China
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5
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Remete AM, Nonn M, Escorihuela J, Fustero S, Kiss L. Asymmetric Methods for Carbon‐Fluorine Bond Formation. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101094] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Attila M. Remete
- Institute of Pharmaceutical Chemistry University of Szeged 6720 Szeged Eötvös u. 6 Hungary
- Interdisciplinary Excellence Centre Institute of Pharmaceutical Chemistry University of Szeged 6720 Szeged Eötvös u. 6 Hungary
| | - Melinda Nonn
- Institute of Pharmaceutical Chemistry University of Szeged 6720 Szeged Eötvös u. 6 Hungary
- Interdisciplinary Excellence Centre Institute of Pharmaceutical Chemistry University of Szeged 6720 Szeged Eötvös u. 6 Hungary
| | - Jorge Escorihuela
- Department of Organic Chemistry University of Valencia Pharmacy Faculty 46100- Burjassot Valencia Spain
| | - Santos Fustero
- Department of Organic Chemistry University of Valencia Pharmacy Faculty 46100- Burjassot Valencia Spain
| | - Loránd Kiss
- Institute of Pharmaceutical Chemistry University of Szeged 6720 Szeged Eötvös u. 6 Hungary
- Interdisciplinary Excellence Centre Institute of Pharmaceutical Chemistry University of Szeged 6720 Szeged Eötvös u. 6 Hungary
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6
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Sap JBI, Meyer CF, Straathof NJW, Iwumene N, am Ende CW, Trabanco AA, Gouverneur V. Late-stage difluoromethylation: concepts, developments and perspective. Chem Soc Rev 2021; 50:8214-8247. [DOI: 10.1039/d1cs00360g] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This review describes the conceptual advances that have led to the multiple difluoromethylation processes making use of well-defined CF2H sources.
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Affiliation(s)
- Jeroen B. I. Sap
- Chemistry Research Laboratory
- Department of Chemistry
- Oxford University
- OX1 3TA Oxford
- UK
| | - Claudio F. Meyer
- Chemistry Research Laboratory
- Department of Chemistry
- Oxford University
- OX1 3TA Oxford
- UK
| | - Natan J. W. Straathof
- Chemistry Research Laboratory
- Department of Chemistry
- Oxford University
- OX1 3TA Oxford
- UK
| | - Ndidi Iwumene
- Chemistry Research Laboratory
- Department of Chemistry
- Oxford University
- OX1 3TA Oxford
- UK
| | - Christopher W. am Ende
- Pfizer Inc
- Medicine Design, Eastern Point Road, Groton, Connecticut 06340, and 1 Portland Street
- Cambridge
- USA
| | | | - Véronique Gouverneur
- Chemistry Research Laboratory
- Department of Chemistry
- Oxford University
- OX1 3TA Oxford
- UK
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7
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Aggarwal T, Sushmita, Verma AK. Achievements in fluorination using variable reagents through a deoxyfluorination reaction. Org Chem Front 2021. [DOI: 10.1039/d1qo00952d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The application of fluorination reagent for the direct conversion of alcohols and phenols to fluorinated analogues.
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Affiliation(s)
- Trapti Aggarwal
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India
| | - Sushmita
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India
| | - Akhilesh K. Verma
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India
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8
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Guo R, Qi X, Xiang H, Geaneotes P, Wang R, Liu P, Wang Y. Stereodivergent Alkyne Hydrofluorination Using Protic Tetrafluoroborates as Tunable Reagents. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Rui Guo
- Department of ChemistryUniversity of Pittsburgh Pittsburgh PA 15260 USA
| | - Xiaotian Qi
- Department of ChemistryUniversity of Pittsburgh Pittsburgh PA 15260 USA
| | - Hengye Xiang
- Department of ChemistryUniversity of Pittsburgh Pittsburgh PA 15260 USA
| | - Paul Geaneotes
- Department of ChemistryUniversity of Pittsburgh Pittsburgh PA 15260 USA
| | - Ruihan Wang
- Department of ChemistryUniversity of Pittsburgh Pittsburgh PA 15260 USA
| | - Peng Liu
- Department of ChemistryUniversity of Pittsburgh Pittsburgh PA 15260 USA
| | - Yi‐Ming Wang
- Department of ChemistryUniversity of Pittsburgh Pittsburgh PA 15260 USA
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9
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Guo R, Qi X, Xiang H, Geaneotes P, Wang R, Liu P, Wang YM. Stereodivergent Alkyne Hydrofluorination Using Protic Tetrafluoroborates as Tunable Reagents. Angew Chem Int Ed Engl 2020; 59:16651-16660. [PMID: 32485005 DOI: 10.1002/anie.202006278] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/22/2020] [Indexed: 01/10/2023]
Abstract
The discovery of safe, general, and practical procedures to prepare vinyl fluorides from readily available precursors remains a synthetic challenge. The metal-free hydrofluorination of alkynes constitutes an attractive though elusive strategy for their preparation. Introduced here is an inexpensive and easily handled reagent that enables the development of simple and scalable protocols for the regioselective hydrofluorination of alkynes to access both the E and Z isomers of vinyl fluorides. These reaction conditions were suitable for a diverse collection of alkynes, including several highly functionalized pharmaceutical derivatives. Computational and experimental mechanistic studies support C-F bond formation through vinyl cation intermediates, with the E- and Z-hydrofluorination products forming under kinetic and thermodynamic control, respectively.
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Affiliation(s)
- Rui Guo
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA
| | - Xiaotian Qi
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA
| | - Hengye Xiang
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA
| | - Paul Geaneotes
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA
| | - Ruihan Wang
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA
| | - Yi-Ming Wang
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA
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10
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Yao H, Wang J, Xu Y, Zhang S, Hou J. Recent Progress in Chlorinated Organic Photovoltaic Materials. Acc Chem Res 2020; 53:822-832. [PMID: 32216329 DOI: 10.1021/acs.accounts.0c00009] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
ConspectusOver the past few years, the development of new materials has contributed to rapid increases in the power conversion efficiencies (PCEs) of organic photovoltaic (OPV) cells to over 17%, showing great potential for the commercialization of this technology in the near future. At this stage, designing new materials with superior performance and low cost simultaneously is of crucial importance. Chlorinated materials are emerging as new stars with very high PCEs, creating a molecular design trend to replace the most popular fluorinated materials. For example, by using chlorinated non-fullerene acceptors, we recently got a record PCE of 17% for single-junction OPV cells. Firmly based on recent advances, herein we focus on the topic of chlorinated OPV materials, aiming to provide a guideline for further molecular design.In this Account, first, on the basis of most fundamental features of the Cl atom, we highlight the features of chlorinated materials compared with their fluorinated counterparts: (1) Chlorination is more efficient than fluorination in modulating the optical and electrical properties of OPV materials. In many cases, chlorinated materials show lower energy levels and broader absorption spectra than their fluorinated counterparts, which contribute higher output voltages and current densities in the resulting photovoltaic devices. (2) Cl has a large atomic size than F. On one hand, enhanced overlap of π electrons is beneficial for enhancing the intermolecular packing and crystalline property and thus improving the charge transport. On the other hand, if Cl is introduced inappropriately in the backbone or side chain, this feature will cause a more twisted π plane and larger steric hindrance, having negative impacts on the photovoltaic performance of the corresponding materials. (3) Importantly, chlorination is usually chemically cheaper in synthesis, which has the potential to decrease the material cost of OPV cells. Then, we provide a concise review of chlorinated OPV materials, including polymeric and small-molecule donors and non-fullerene acceptors. The photovoltaic performance in various types of OPV cells using chlorinated materials, such as single-junction, tandem, semitransparent, and indoor-light photovoltaic cells is also discussed. For instance, ultranarrow-band-gap chlorinated acceptors can be used to construct highly efficient color-semitransparent OPV cells, and the wide-band-gap chlorinated materials show great potential for fabricating indoor-light photovoltaic devices. Finally, we briefly discuss current questions related to chlorinated OPV materials and highlight the significance of chlorination in future development.
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Affiliation(s)
- Huifeng Yao
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Jingwen Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Ye Xu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Shaoqing Zhang
- School of Chemistry and Biological Engineering, University of Science and Technology, Beijing 100083, P. R. China
| | - Jianhui Hou
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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11
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Dorel R, Boehm P, Schwinger DP, Hartwig JF. Copper-Mediated Fluorination of Aryl Trisiloxanes with Nucleophilic Fluoride. Chemistry 2020; 26:1759-1762. [PMID: 31872488 PMCID: PMC7266656 DOI: 10.1002/chem.201905040] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 12/12/2019] [Indexed: 11/06/2022]
Abstract
A method for the nucleophilic fluorination of heptamethyl aryl trisiloxanes to form fluoroarenes is reported. The reaction proceeds in the presence of Cu(OTf)2 and KHF2 as the fluoride source under mild conditions for a broad range of heptamethyltrisiloxyarenes with high functional group tolerance. The combination of this method with the silylation of aryl C-H bonds enables the regioselective fluorination of non-activated arenes controlled by steric effects following a two-step protocol.
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Affiliation(s)
- Ruth Dorel
- Department of Chemistry, University of California, Berkeley, Berkeley, California, 94720, USA
| | - Philip Boehm
- Department of Chemistry, University of California, Berkeley, Berkeley, California, 94720, USA
| | - Daniel P Schwinger
- Department of Chemistry, University of California, Berkeley, Berkeley, California, 94720, USA
| | - John F Hartwig
- Department of Chemistry, University of California, Berkeley, Berkeley, California, 94720, USA
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12
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Abstract
The article discusses the basic properties of fluorine atom that have made it so useful in drug development. It presents several examples of therapeutically useful drugs acting against many life-threatening diseases along with the mechanism as to how fluorine influences the drug activity. It has been pointed out that fluorine, due to its ability to increase the lipophilicity of the molecule, greatly affects the hydrophobic interaction between the drug molecule and the receptor. Because of its small size, it hardly produces any steric effect, rather due to electronic properties enters into electrostatic and hydrogen-bond interactions. Thus, it greatly affects the drug-receptor interaction and leads to increase the activity of the drugs.
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Affiliation(s)
- Satya Prakash Gupta
- Department of Pharmaceutical Technology, Meerut Institute of Engineering and Technology, Meerut 250005, India
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13
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Guan D, Luan H, Patiguli M, Jiao Q, Yun Q, Chen Q, Xu C, Nie X, Hu F, Huang G. Metal–free Efficient Method for the Synthesis of N‐(2‐haloethyl)benzamides through the Ring‐opening of2‐oxazolines. ChemistrySelect 2019. [DOI: 10.1002/slct.201901109] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Dan Guan
- Xinjiang Laboratory of Petroleum Reserve in Conglomerate, Kalamay 834000 China
- Research institute of Enhance Oil RecoveryExp& Testing Res of Xinjiang Oilfield Co Petrochina Co.,Ltd,Kelamayi 834000 Xinjiang China
| | - Huo‐Xin Luan
- Xinjiang Laboratory of Petroleum Reserve in Conglomerate, Kalamay 834000 China
- Research institute of Enhance Oil RecoveryExp& Testing Res of Xinjiang Oilfield Co Petrochina Co.,Ltd,Kelamayi 834000 Xinjiang China
| | - Maimaiti Patiguli
- Xinjiang Laboratory of Petroleum Reserve in Conglomerate, Kalamay 834000 China
- Research institute of Enhance Oil RecoveryExp& Testing Res of Xinjiang Oilfield Co Petrochina Co.,Ltd,Kelamayi 834000 Xinjiang China
| | - Qiu‐Ju Jiao
- Xinjiang Laboratory of Petroleum Reserve in Conglomerate, Kalamay 834000 China
- Research institute of Enhance Oil RecoveryExp& Testing Res of Xinjiang Oilfield Co Petrochina Co.,Ltd,Kelamayi 834000 Xinjiang China
| | - Qing‐Qing Yun
- Xinjiang Laboratory of Petroleum Reserve in Conglomerate, Kalamay 834000 China
- Research institute of Enhance Oil RecoveryExp& Testing Res of Xinjiang Oilfield Co Petrochina Co.,Ltd,Kelamayi 834000 Xinjiang China
| | - Quan‐Sheng Chen
- Xinjiang Laboratory of Petroleum Reserve in Conglomerate, Kalamay 834000 China
- Research institute of Enhance Oil RecoveryExp& Testing Res of Xinjiang Oilfield Co Petrochina Co.,Ltd,Kelamayi 834000 Xinjiang China
| | - Chong‐Jun Xu
- Xinjiang Laboratory of Petroleum Reserve in Conglomerate, Kalamay 834000 China
- Research institute of Enhance Oil RecoveryExp& Testing Res of Xinjiang Oilfield Co Petrochina Co.,Ltd,Kelamayi 834000 Xinjiang China
| | - Xiao‐Bin Nie
- Xinjiang Laboratory of Petroleum Reserve in Conglomerate, Kalamay 834000 China
- Research institute of Enhance Oil RecoveryExp& Testing Res of Xinjiang Oilfield Co Petrochina Co.,Ltd,Kelamayi 834000 Xinjiang China
| | - Fang‐Peng Hu
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceDepartment of Chemistry, Lanzhou University Lanzhou 730000 China
| | - Guo‐Sheng Huang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu ProvinceDepartment of Chemistry, Lanzhou University Lanzhou 730000 China
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14
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Pérez-Gómez M, Azizollahi H, Franzoni I, Larin EM, Lautens M, García-López JA. Tandem Remote Csp3–H Activation/Csp3–Csp3 Cleavage in Unstrained Aliphatic Chains Assisted by Palladium(II). Organometallics 2019. [DOI: 10.1021/acs.organomet.8b00920] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Marta Pérez-Gómez
- Grupo de Química Organometálica, Departamento de Química Inorgánica, Universidad de Murcia, Murcia 30100, Spain
| | - Hamid Azizollahi
- Grupo de Química Organometálica, Departamento de Química Inorgánica, Universidad de Murcia, Murcia 30100, Spain
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, 91775-1436 Mashhad, Iran
| | - Ivan Franzoni
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Egor M. Larin
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Mark Lautens
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - José-Antonio García-López
- Grupo de Química Organometálica, Departamento de Química Inorgánica, Universidad de Murcia, Murcia 30100, Spain
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15
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Testa C, Roger J, Fleurat-Lessard P, Hierso JC. Palladium-Catalyzed Electrophilic C-H-Bond Fluorination: Mechanistic Overview and Supporting Evidence. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801138] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Christelle Testa
- Institut de Chimie Moléculaire de l'Université de Bourgogne; UMR-CNRS 6302; Université de Bourgogne Franche-Comté; 9, avenue Alain Savary 21078 Dijon France
| | - Julien Roger
- Institut de Chimie Moléculaire de l'Université de Bourgogne; UMR-CNRS 6302; Université de Bourgogne Franche-Comté; 9, avenue Alain Savary 21078 Dijon France
| | - Paul Fleurat-Lessard
- Institut de Chimie Moléculaire de l'Université de Bourgogne; UMR-CNRS 6302; Université de Bourgogne Franche-Comté; 9, avenue Alain Savary 21078 Dijon France
| | - Jean-Cyrille Hierso
- Institut de Chimie Moléculaire de l'Université de Bourgogne; UMR-CNRS 6302; Université de Bourgogne Franche-Comté; 9, avenue Alain Savary 21078 Dijon France
- Institut Universitaire de France (IUF); 103 Boulevard Saint Michel 75005 Paris Cedex France
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16
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Hou H, Li H, Xu Y, Tang D, Han Y, Yan C, Chen X, Zhu S. Catalyst-free fluorinative alkoxylation of alkenes. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.09.038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Khanal HD, Thombal RS, Maezono SMB, Lee YR. Designs and Strategies for the Halo-Functionalization of Diazo Compounds. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800340] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Hari Datta Khanal
- School of Chemical Engineering; Yeungnam University; Gyeongsan 712-749 Republic of Korea
| | - Raju S. Thombal
- School of Chemical Engineering; Yeungnam University; Gyeongsan 712-749 Republic of Korea
| | - Shizuka Mei B. Maezono
- School of Chemical Engineering; Yeungnam University; Gyeongsan 712-749 Republic of Korea
| | - Yong Rok Lee
- School of Chemical Engineering; Yeungnam University; Gyeongsan 712-749 Republic of Korea
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18
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Berg C, Pfister N, Braun T, Braun-Cula B. Diverse Reactivity of Platinum SF3
and SF2
Complexes towards EtOH and Me3
SiOEt. Chemistry 2018. [DOI: 10.1002/chem.201800503] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Claudia Berg
- Department of Chemistry; Humboldt Universität zu Berlin; Brook-Taylor-Straße 2 12489 Berlin Germany
| | - Nils Pfister
- Department of Chemistry; Humboldt Universität zu Berlin; Brook-Taylor-Straße 2 12489 Berlin Germany
| | - Thomas Braun
- Department of Chemistry; Humboldt Universität zu Berlin; Brook-Taylor-Straße 2 12489 Berlin Germany
| | - Beatrice Braun-Cula
- Department of Chemistry; Humboldt Universität zu Berlin; Brook-Taylor-Straße 2 12489 Berlin Germany
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19
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Narayanam MK, Ma G, Champagne PA, Houk KN, Murphy JM. Synthesis of [ 18 F]Fluoroarenes by Nucleophilic Radiofluorination of N-Arylsydnones. Angew Chem Int Ed Engl 2017; 56:13006-13010. [PMID: 28834065 PMCID: PMC5674999 DOI: 10.1002/anie.201707274] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 08/17/2017] [Indexed: 11/08/2022]
Abstract
A practical method for radiofluorination of anilines with [18 F]fluoride via N-arylsydnone intermediates is described. These precursors are stable, easy to handle and facilitate direct and regioselective 18 F-labeling to prepare [18 F]fluoroarenes. The value of this methodology is further highlighted by successful application to prepare an 18 F-labeled neuropeptide.
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Affiliation(s)
- Maruthi Kumar Narayanam
- Department of Molecular and Medical Pharmacology and Crump Institute for Molecular Imaging, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Gaoyuan Ma
- Department of Molecular and Medical Pharmacology and Crump Institute for Molecular Imaging, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Pier Alexandre Champagne
- Department of Chemistry and Biochemistry, and Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Kendall N Houk
- Department of Chemistry and Biochemistry, and Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Jennifer M Murphy
- Department of Molecular and Medical Pharmacology and Crump Institute for Molecular Imaging, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA
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20
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Ai HJ, Cai CX, Qi X, Peng JB, Zheng F, Wu XF. Palladium-catalyzed Heck reaction of in-situ generated benzylic iodides and styrenes. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.08.059] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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21
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Narayanam MK, Ma G, Champagne PA, Houk KN, Murphy JM. Synthesis of [18F]Fluoroarenes by Nucleophilic Radiofluorination ofN-Arylsydnones. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201707274] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Maruthi Kumar Narayanam
- Department of Molecular and Medical Pharmacology and Crump Institute for Molecular Imaging; David Geffen School of Medicine; University of California, Los Angeles; Los Angeles CA 90095 USA
| | - Gaoyuan Ma
- Department of Molecular and Medical Pharmacology and Crump Institute for Molecular Imaging; David Geffen School of Medicine; University of California, Los Angeles; Los Angeles CA 90095 USA
| | - Pier Alexandre Champagne
- Department of Chemistry and Biochemistry, and Department of Chemical and Biomolecular Engineering; University of California, Los Angeles; Los Angeles CA 90095 USA
| | - Kendall N. Houk
- Department of Chemistry and Biochemistry, and Department of Chemical and Biomolecular Engineering; University of California, Los Angeles; Los Angeles CA 90095 USA
| | - Jennifer M. Murphy
- Department of Molecular and Medical Pharmacology and Crump Institute for Molecular Imaging; David Geffen School of Medicine; University of California, Los Angeles; Los Angeles CA 90095 USA
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22
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Alonso P, Pardo P, Fontaneda R, Fañanás FJ, Rodríguez F. Synthesis and Applications of Cyclohexenyl Halides Obtained by a Cationic Carbocyclisation Reaction. Chemistry 2017; 23:13158-13163. [DOI: 10.1002/chem.201702490] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Pedro Alonso
- Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; Julián Clavería, 8 33006 Oviedo Spain
| | - Pilar Pardo
- Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; Julián Clavería, 8 33006 Oviedo Spain
| | - Raquel Fontaneda
- Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; Julián Clavería, 8 33006 Oviedo Spain
| | - Francisco J. Fañanás
- Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; Julián Clavería, 8 33006 Oviedo Spain
| | - Félix Rodríguez
- Instituto Universitario de Química Organometálica “Enrique Moles”; Universidad de Oviedo; Julián Clavería, 8 33006 Oviedo Spain
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23
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Insights into chemoselective fluorination reaction of alkynals via N-heterocyclic carbene and Brønsted base cooperative catalysis. Theor Chem Acc 2017. [DOI: 10.1007/s00214-017-2127-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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24
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Affiliation(s)
- Fabian Lied
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstrasse 40 48149 Münster Germany
| | - Tuhin Patra
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstrasse 40 48149 Münster Germany
| | - Frank Glorius
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstrasse 40 48149 Münster Germany
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25
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Berger J, Braun T, Ahrens T, Kläring P, Laubenstein R, Braun-Cula B. The Versatile Behavior of Platinum Alkyne Complexes towards XeF 2 : Formation of Fluorovinyl and Fluorido Complexes. Chemistry 2017; 23:8886-8900. [PMID: 28472555 DOI: 10.1002/chem.201700403] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Indexed: 12/31/2022]
Abstract
Reactions of platinum(0) tolane complexes, bearing a chelating ligand with P and N donor atoms, with the electrophilic fluorinating agent XeF2 give facile access to platinum(II) β-fluorovinyl fluorido complexes. A series of new platinum(II) β-fluorovinyl complexes have been synthesized and were structurally characterized. Further oxidation with XeF2 led to ortho-metalated platinum(IV) fluorido compounds. Additional reactions of platinum(0) tolane complexes, bearing a chelating P,P donor ligand, with XeF2 led to a variety of fluorido and fluorovinyl complexes.
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Affiliation(s)
- Josefine Berger
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor Str. 2, 12489, Berlin, Germany
| | - Thomas Braun
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor Str. 2, 12489, Berlin, Germany
| | - Theresia Ahrens
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor Str. 2, 12489, Berlin, Germany
| | - Paul Kläring
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor Str. 2, 12489, Berlin, Germany
| | - Reik Laubenstein
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor Str. 2, 12489, Berlin, Germany
| | - Beatrice Braun-Cula
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor Str. 2, 12489, Berlin, Germany
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26
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Andrews KG, Faizova R, Denton RM. A practical and catalyst-free trifluoroethylation reaction of amines using trifluoroacetic acid. Nat Commun 2017. [PMID: 28649981 PMCID: PMC5490195 DOI: 10.1038/ncomms15913] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Amines are a fundamentally important class of biologically active compounds and the ability to manipulate their physicochemical properties through the introduction of fluorine is of paramount importance in medicinal chemistry. Current synthesis methods for the construction of fluorinated amines rely on air and moisture sensitive reagents that require special handling or harsh reductants that limit functionality. Here we report practical, catalyst-free, reductive trifluoroethylation reactions of free amines exhibiting remarkable functional group tolerance. The reactions proceed in conventional glassware without rigorous exclusion of either moisture or oxygen, and use trifluoroacetic acid as a stable and inexpensive fluorine source. The new methods provide access to a wide range of medicinally relevant functionalized tertiary β-fluoroalkylamine cores, either through direct trifluoroethylation of secondary amines or via a three-component coupling of primary amines, aldehydes and trifluoroacetic acid. A reduction of in situ-generated silyl ester species is proposed to account for the reductive selectivity observed. Amino and trifluoromethyl groups are ubiquitous within medicinal chemistry, but synthesis of fluoroalkylamines normally requires harsh conditions or sensitive reagents. Here the authors report an operationally simple, catalyst-free procedure for the trifluoroethylation of primary and secondary amines.
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Affiliation(s)
- Keith G Andrews
- School of Chemistry, University Park, University of Nottingham, Nottingham NG7 2RD, UK
| | - Radmila Faizova
- School of Chemistry, University Park, University of Nottingham, Nottingham NG7 2RD, UK
| | - Ross M Denton
- School of Chemistry, University Park, University of Nottingham, Nottingham NG7 2RD, UK
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27
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Petrone DA, Franzoni I, Ye J, Rodríguez JF, Poblador-Bahamonde AI, Lautens M. Palladium-Catalyzed Hydrohalogenation of 1,6-Enynes: Hydrogen Halide Salts and Alkyl Halides as Convenient HX Surrogates. J Am Chem Soc 2017; 139:3546-3557. [DOI: 10.1021/jacs.7b00482] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- David A. Petrone
- Davenport
Research Laboratories, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Ivan Franzoni
- Davenport
Research Laboratories, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Juntao Ye
- Davenport
Research Laboratories, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - José F. Rodríguez
- Davenport
Research Laboratories, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | | | - Mark Lautens
- Davenport
Research Laboratories, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
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28
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Campbell MG, Mercier J, Genicot C, Gouverneur V, Hooker JM, Ritter T. Bridging the gaps in 18F PET tracer development. Nat Chem 2016; 9:1-3. [PMID: 27995923 DOI: 10.1038/nchem.2693] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Michael G Campbell
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, USA
- Department of Chemistry, Barnard College, 3009 Broadway, New York, New York 10027, USA
| | - Joel Mercier
- Global Chemistry, UCB NewMedicines, UCB Biopharma SPRL, 1420 Braine-l'Alleud, Belgium
| | - Christophe Genicot
- Global Chemistry, UCB NewMedicines, UCB Biopharma SPRL, 1420 Braine-l'Alleud, Belgium
| | - Véronique Gouverneur
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, UK
| | - Jacob M Hooker
- Division of Nuclear Medicine and Molecular Imaging, Department of Radiology, Massachusetts General Hospital, Boston, Massachusetts 02114, USA
- Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts 02129, USA
| | - Tobias Ritter
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, USA
- Division of Nuclear Medicine and Molecular Imaging, Department of Radiology, Massachusetts General Hospital, Boston, Massachusetts 02114, USA
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
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29
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30
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Gamache RF, Waldmann C, Murphy JM. Copper-Mediated Oxidative Fluorination of Aryl Stannanes with Fluoride. Org Lett 2016; 18:4522-5. [DOI: 10.1021/acs.orglett.6b02125] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Raymond F. Gamache
- Department
of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095, United States
| | - Christopher Waldmann
- Department
of Molecular and Medical Pharmacology and Crump Institute for Molecular
Imaging, David Geffen School of Medicine, University of California, Los Angeles, 570 Westwood Plaza, Los
Angeles, California 90095, United States
| | - Jennifer M. Murphy
- Department
of Molecular and Medical Pharmacology and Crump Institute for Molecular
Imaging, David Geffen School of Medicine, University of California, Los Angeles, 570 Westwood Plaza, Los
Angeles, California 90095, United States
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31
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Petrone DA, Ye J, Lautens M. Modern Transition-Metal-Catalyzed Carbon–Halogen Bond Formation. Chem Rev 2016; 116:8003-104. [DOI: 10.1021/acs.chemrev.6b00089] [Citation(s) in RCA: 394] [Impact Index Per Article: 49.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- David A. Petrone
- Department of Chemistry, University of Toronto Davenport Research Laboratories, 80 St. George St. Toronto, Ontario M5S 3H6, Canada
| | - Juntao Ye
- Department of Chemistry, University of Toronto Davenport Research Laboratories, 80 St. George St. Toronto, Ontario M5S 3H6, Canada
| | - Mark Lautens
- Department of Chemistry, University of Toronto Davenport Research Laboratories, 80 St. George St. Toronto, Ontario M5S 3H6, Canada
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32
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Tandem superelectrophilic activation for the regioselective chlorofluorination of recalcitrant allylic amines. Tetrahedron 2016. [DOI: 10.1016/j.tet.2015.12.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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33
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Ahrens T, Ahrens M, Braun T, Braun B, Herrmann R. Synthesis of a rhodium(i) germyl complex: a useful tool for C–H and C–F bond activation reactions. Dalton Trans 2016; 45:4716-28. [DOI: 10.1039/c5dt04845a] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The rhodium(i) germyl complex [Rh(GePh3)(PEt3)3] is a useful tool for C–F and C–H bond activation reactions. For instance, treatment with hexafluoropropene results in the formation of two isomeric C–F activation products [Rh{(E)-CFCF(CF3)}(PEt3)3] and [Rh{(Z)-CFCF(CF3)}(PEt3)3] in a 3 : 1 ratio.
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Affiliation(s)
- Theresia Ahrens
- Humboldt-Universität zu Berlin
- Department of Chemistry
- D-12489 Berlin
- Germany
| | - Mike Ahrens
- Humboldt-Universität zu Berlin
- Department of Chemistry
- D-12489 Berlin
- Germany
| | - Thomas Braun
- Humboldt-Universität zu Berlin
- Department of Chemistry
- D-12489 Berlin
- Germany
| | - Beatrice Braun
- Humboldt-Universität zu Berlin
- Department of Chemistry
- D-12489 Berlin
- Germany
| | - Roy Herrmann
- Humboldt-Universität zu Berlin
- Department of Chemistry
- D-12489 Berlin
- Germany
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34
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Berger J, Braun T, Herrmann R, Braun B. Reactivity of platinum alkyne complexes towards N-fluorobenzenesulfonimide: formation of platinum compounds bearing a β-fluorovinyl ligand. Dalton Trans 2015; 44:19553-65. [PMID: 26308149 DOI: 10.1039/c5dt02306h] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The platinum(0) alkyne complexes [Pt(L)(η(2)-PhC[triple bond, length as m-dash]CPh)] 1-4 were synthesized by reactions of [Pt(cod)2] with diphenylacetylene and a phosphine ligand precursor (1: L = dcpe, 2: L = xantphos, 3: L = κ(2)-(P,N)-iPr2PC3H6NMe2, 4: L = κ(2)-(P,N)-iPr2PC2H4NMe2). Treatment of 1 or 4 with NFSI gave the complexes [Pt(F){N(SO2Ph)2}(dcpe)] (5) and [Pt(PhC[double bond, length as m-dash]CFPh){N(SO2Ph)2}{κ(2)-(P,N)-iPr2PC2H4NMe2}] (8), whereas the reactivity of 2 and 3 towards NFSI led to product mixtures. The compounds [Pt(F){N(SO2Ph)2}(xantphos)] (6a) as well as [Pt(PhC[double bond, length as m-dash]CFPh){N(SO2Ph)2}{κ(2)-(P,N)-iPr2PC2H4NMe2}] (7a) and [Pt(PhC[double bond, length as m-dash]CFPh)(F){κ(2)-(P,N)-iPr2PC2H4NMe2}] (7b) were clearly identified. Ligand exchange reactions at 8 resulted in the formation of the β-fluorovinyl platinum(ii) complexes [Pt(PhC[double bond, length as m-dash]CFPh){OC(O)CF3}{κ(2)-(P,N)-iPr2PC2H4NMe2}] (9), [Pt(PhC[double bond, length as m-dash]CFPh)(FHF){κ(2)-(P,N)-iPr2PC2H4NMe2}] (10) and [Pt(PhC[double bond, length as m-dash]CFPh)(F){κ(2)-(P,N)-iPr2PC2H4NMe2}] (11). Treatment of 8 with dihydrogen yielded the fluorinated olefin (Z)-(1-fluoroethene-1,2-diyl)dibenzene and [Pt{N(SO2Ph)2}(H){κ(2)-(P,N)-iPr2PC2H4NMe2}] (12).
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Affiliation(s)
- Josefine Berger
- Humboldt-Universität zu Berlin, Department of Chemistry, Brook-Taylor-Straße 2, D-12489 Berlin, Germany.
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35
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Andrella NO, Sicard AJ, Gorelsky SI, Korobkov I, Baker RT. A T-shaped Ni[κ 2-(CF 2) 4-] NHC complex: unusual C sp3 -F and M-C F bond functionalization reactions. Chem Sci 2015; 6:6392-6397. [PMID: 30090259 PMCID: PMC6054117 DOI: 10.1039/c5sc01886b] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Accepted: 07/27/2015] [Indexed: 11/21/2022] Open
Abstract
The reactivity of this T-shaped perfluoronickelacyclopentane–NHC complex with Lewis- and Brønsted acids is enhanced vs. 4-coordinate variants by its low coordination number.
A T-shaped octafluoronickelacyclopentane–NHC complex is prepared and characterized. While the solid-state structure includes a weak isopropyl-CH3 agostic interaction, the reactivity of this complex with Lewis- and Brønsted acids is clearly enhanced by its low coordination number. Reaction with Me3SiOTf, for example, yielded a rare metal–heptafluorocyclobutyl complex whereas carboxylic acids gave substitution at the α-carbon and/or Ni–CF bond protonolysis to afford thermally robust 4H-octafluorobutyl Ni complexes.
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Affiliation(s)
- Nicholas O Andrella
- Department of Chemistry and Centre for Catalysis Research and Innovation(CCRI) , University of Ottawa , 30 Marie Curie , Ottawa , ON K1N 6N5 Canada
| | - Alexandre J Sicard
- Department of Chemistry and Centre for Catalysis Research and Innovation(CCRI) , University of Ottawa , 30 Marie Curie , Ottawa , ON K1N 6N5 Canada
| | - Serge I Gorelsky
- Department of Chemistry and Centre for Catalysis Research and Innovation(CCRI) , University of Ottawa , 30 Marie Curie , Ottawa , ON K1N 6N5 Canada
| | - Ilia Korobkov
- Department of Chemistry and Centre for Catalysis Research and Innovation(CCRI) , University of Ottawa , 30 Marie Curie , Ottawa , ON K1N 6N5 Canada
| | - R Tom Baker
- Department of Chemistry and Centre for Catalysis Research and Innovation(CCRI) , University of Ottawa , 30 Marie Curie , Ottawa , ON K1N 6N5 Canada
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36
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Kadoh Y, Tashiro M, Oisaki K, Kanai M. Organocatalytic Aerobic Oxidation of α-Fluoroalkyl Alcohols to Fluoroalkyl Ketones at Room Temperature. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500131] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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37
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Chen P, Liu G. Advancements in Aminofluorination of Alkenes and Alkynes: Convenient Access to β-Fluoroamines. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500231] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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38
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Abstract
Fluoroorganic compounds have attracted significant attention in various fields, such as pharmaceutical, agricultural chemistry, and materials science, as a result of their unique physical, chemical, and physiological properties. Consequently, extensive efforts have been devoted to the site-specific synthesis of organofluorine compounds. In recent years, transition-metal-mediated C-F bond formation has emerged as a powerful method for fabrication of these compounds. this Perspective mainly focuses on the most recent advances in transition-metal-assisted synthesis of alkyl fluorides.
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Affiliation(s)
- Xiaoxi Lin
- Department of Chemistry, Fuzhou University, Fuzhou, China350108.
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39
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Champagne PA, Desroches J, Hamel JD, Vandamme M, Paquin JF. Monofluorination of Organic Compounds: 10 Years of Innovation. Chem Rev 2015; 115:9073-174. [PMID: 25854146 DOI: 10.1021/cr500706a] [Citation(s) in RCA: 677] [Impact Index Per Article: 75.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Pier Alexandre Champagne
- Canada Research Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département de Chimie, Université Laval , 1045 Avenue de la Médecine, Québec (QC), Canada G1V 0A6
| | - Justine Desroches
- Canada Research Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département de Chimie, Université Laval , 1045 Avenue de la Médecine, Québec (QC), Canada G1V 0A6
| | - Jean-Denys Hamel
- Canada Research Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département de Chimie, Université Laval , 1045 Avenue de la Médecine, Québec (QC), Canada G1V 0A6
| | - Mathilde Vandamme
- Canada Research Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département de Chimie, Université Laval , 1045 Avenue de la Médecine, Québec (QC), Canada G1V 0A6
| | - Jean-François Paquin
- Canada Research Chair in Organic and Medicinal Chemistry, CGCC, PROTEO, Département de Chimie, Université Laval , 1045 Avenue de la Médecine, Québec (QC), Canada G1V 0A6
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40
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Liu S, Zhao J, Zhang G. Regio- and stereoselective synthesis of functionalized allylic fluorides via palladium-catalyzed three-component tandem carbofluorination of allenes. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.03.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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41
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Neumann CN, Ritter T. Late-stage fluorination: fancy novelty or useful tool? Angew Chem Int Ed Engl 2015; 54:3216-21. [PMID: 25653137 DOI: 10.1002/anie.201410288] [Citation(s) in RCA: 198] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 12/09/2014] [Indexed: 11/09/2022]
Abstract
Charming fluorine: This Essay examines the recent surge in late-stage fluorination reactions and outlines challenges that need to be overcome to increase the impact of modern fluorination methods on the synthesis of complex organofluorine compounds. It is outlined how an improved understanding of the bonding interactions of fluoride could lead to a new class of mild fluorinating reagents and a range of functional-group-tolerant reactions.
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Affiliation(s)
- Constanze N Neumann
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA 02138 (USA) http://www.chem.harvard.edu/groups/ritter/
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42
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Fluorierung in späten Synthesestadien: extravagante Neuheit oder nützliches Hilfsmittel? Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201410288] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Hauser SA, Prokes I, Chaplin AB. Low-coordinate iridium NHC complexes derived from selective and reversible C–H bond activation of fluoroarenes. Chem Commun (Camb) 2015; 51:4425-8. [DOI: 10.1039/c5cc00529a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A reactive iridium(i) fragment supported by conformationally rigid NHC ligands undergoes mild and reversible C–H bond activation of simple fluoroarenes.
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Affiliation(s)
| | - Ivan Prokes
- Department of Chemistry
- University of Warwick
- Coventry CV4 7AL
- UK
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44
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Zhang SL, Huang L, Sun LJ. The mechanism, electronic and ligand effects for reductive elimination from arylPd(ii) trifluoromethyl complexes: a systematic DFT study. Dalton Trans 2015; 44:4613-22. [DOI: 10.1039/c4dt03267e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Detailed reaction mechanisms and ligand effects have been studied for reductive elimination of Ar–CF3 from Pd(ii) centers.
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Affiliation(s)
- Song-Lin Zhang
- The Key Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Lu Huang
- The Key Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Li-Jun Sun
- The Key Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
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45
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Abstract
CONSPECTUS: The vicinal fluorofunctionalization of alkenes is an attractive transformation that converts feedstock olefins into valuable cyclic fluorinated molecules for application in the pharmaceutical, agrochemical, medical, and material sectors. The challenges associated with asymmetric fluorocyclizations induced by F(+) reagents are distinct from other types of halocyclizations. Processes initiated by the addition of an F(+) reagent onto an alkene do not involve the reversible formation of bridged fluoronium ions but generate acyclic β-fluorocationic intermediates. This mechanistic feature implies that fluorocyclizations are not stereospecific. A discontinuity exists between the importance of this class of fluorocyclization and the activation modes currently available to implement successful catalysis. Progress toward fluorocyclization has been achieved by investing in neutral and cationic [NF] reagent development. The body of work on asymmetric fluorination using chiral cationic [NF](+) reagents prepared by fluorine transfer from the dicationic [NF](2+) reagent Selectfluor to quinuclidines, inspired the development of asymmetric F(+)-induced fluorocyclizations catalyzed by cinchona alkaloids; for catalysis, the use of N-fluorobenzenesulfonimide, which is less reactive than Selectfluor, ensures that the achiral F(+) source remains unreactive toward the alkene. These organocatalyzed enantioselective fluorocyclizations can be applied to indoles to install the fluorine on a quaternary benzylic stereogenic carbon center and to afford fluorinated analogues of natural products featuring the hexahydropyrrolo[2,3-b]indole or the tetrahydro-2H-furo[2,3-b]indole skeleton. In an alternative approach, the poor solubility of dicationic Selectfluor bis(tetrafluoroborate) in nonpolar solvent was exploited with anionic phase transfer catalysis as the operating activation mode. Exchange of the tetrafluoroborate ions of Selectfluor with bulky lipophilic chiral anions (e.g., TRIP and derivatives) brings into solution the resulting chiral Selectfluor reagent, now capable of asymmetric fluorocyclization. This strategy is best applied to a subset of substrates bearing a nucleophilic pendent group (benzamide is best) capable of hydrogen bonding for association with the chiral phosphate catalyst. These contributions focused on fluoroheterocyclization involving either O- or N-nucleophiles. As for other halocyclizations, alkenes armed with π C-nucleophiles represent the most demanding class of substrates for asymmetric F(+)-induced electrophilic fluorination-cyclization. Successful implementation required the design of new chiral Selectfluor reagents featuring stereogenicity on the DABCO core. These reagents, accessible from chiral vicinal diamines, allowed the synthesis of unusual chiral fluorine-containing tetracyclic compounds, some composed of carbon, hydrogen, and fluorine exclusively. The challenges associated with F(+)-induced fluorocarbocyclizations prompted methodologists to consider chemistry where the Csp(3)-F bond formation event follows a catalyst-controlled cyclization. An exciting development built on in the area of transition metal π-cyclization of polyenes leading to cationic metal-alkyl intermediates. When intercepted by oxidative fluorodemetalation with a F(+) source, the resulting products are complex polycyclic structures emerging from an overall catalytic cascade fluorocarbocyclization. Complementing F(+)-based reactions, examples of fluorocyclizations with fluoride in the presence of an oxidant were reported. Despite some exciting developments, the field of asymmetric fluorocyclizations is in its infancy and undoubtedly requires new activation modes, catalysts, as well as F(+) and F(-) reagents to progress into general retrosynthetic approach toward enantioenriched fluorocycles. Numerous opportunities emerge, not least the use of a latent fluorine source as a means to minimize background fluorination.
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Affiliation(s)
- Jamie R. Wolstenhulme
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, United Kingdom
| | - Véronique Gouverneur
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, OX1 3TA Oxford, United Kingdom
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46
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Campbell MG, Ritter T. Modern carbon-fluorine bond forming reactions for aryl fluoride synthesis. Chem Rev 2014; 115:612-33. [PMID: 25474722 DOI: 10.1021/cr500366b] [Citation(s) in RCA: 564] [Impact Index Per Article: 56.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Michael G Campbell
- Department of Chemistry and Chemical Biology, Harvard University , 12 Oxford Street, Cambridge, Massachusetts 02138, United States
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47
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Ahrens T, Kohlmann J, Ahrens M, Braun T. Functionalization of fluorinated molecules by transition-metal-mediated C-F bond activation to access fluorinated building blocks. Chem Rev 2014; 115:931-72. [PMID: 25347593 DOI: 10.1021/cr500257c] [Citation(s) in RCA: 610] [Impact Index Per Article: 61.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Theresia Ahrens
- Humboldt-Universität zu Berlin , Department of Chemistry, Brook-Taylor-Straße 2, 12489 Berlin, Germany
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48
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Geng C, Zhu R, Li M, Lu T, Wheeler SE, Liu C. Revised Role of Selectfluor in Homogeneous Au-Catalyzed Oxidative CO Bond Formations. Chemistry 2014; 20:15833-9. [DOI: 10.1002/chem.201404277] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Indexed: 11/05/2022]
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49
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Campbell MG, Ritter T. Late-Stage Formation of Carbon-Fluorine Bonds. CHEM REC 2014; 14:482-91. [DOI: 10.1002/tcr.201402016] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Indexed: 11/11/2022]
Affiliation(s)
- Michael G. Campbell
- Department of Chemistry and Chemical Biology; Harvard University; 12 Oxford Street Cambridge MA 02138 USA
| | - Tobias Ritter
- Department of Chemistry and Chemical Biology; Harvard University; 12 Oxford Street Cambridge MA 02138 USA
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50
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Gao B, Zhao Y, Ni C, Hu J. AgF-Mediated Fluorinative Homocoupling of gem-Difluoroalkenes. Org Lett 2013; 16:102-5. [DOI: 10.1021/ol403083e] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Bing Gao
- Key Laboratory
of Organofluorine
Chemistry, Shanghai Institute of Organic
Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Yanchuan Zhao
- Key Laboratory
of Organofluorine
Chemistry, Shanghai Institute of Organic
Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Chuanfa Ni
- Key Laboratory
of Organofluorine
Chemistry, Shanghai Institute of Organic
Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Jinbo Hu
- Key Laboratory
of Organofluorine
Chemistry, Shanghai Institute of Organic
Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
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