1
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Corral Suarez C, Fernández I, Colomer I. Understanding the Regiodivergence between Hydroarylation and Trifluoromethylarylation of 1,3-Dienes Using Anilines in HFIP. JACS AU 2024; 4:1744-1751. [PMID: 38818050 PMCID: PMC11134361 DOI: 10.1021/jacsau.4c00162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 04/23/2024] [Accepted: 04/30/2024] [Indexed: 06/01/2024]
Abstract
Conjugated dienes (1,3-dienes) are versatile and valuable chemical feedstocks that can be used as two-carbon or four-carbon synthons with vast applications across the chemical industry. However, the main challenge for their productive incorporation in synthetic routes is their chemo-, regio-, and stereoselective functionalization. Herein, we introduce a unified strategy for the 1,2-hydroarylation and 1,4-trifluoromethylarylation of 1,3-dienes using anilines in hexafluoroisopropanol. DFT calculations point toward a kinetically controlled process in both transformations, particularly in the trifluoromethylarylation, to explain the regiodivergent outcome. In addition, we perform an extensive program of functionalization and diversification of the products obtained, including hydrogenation, oxidation, cyclizations, or cross-coupling reactions, that allows access to a library of high-value species in a straightforward manner.
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Affiliation(s)
- Carlos Corral Suarez
- Instituto
de Química Orgánica General (IQOG-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | - Israel Fernández
- Departamento
de Química Orgánica and Centro de Innovación
en Química Avanzada (ORFEO−CINQA), Facultad de Ciencias
Químicas, Universidad Complutense
de Madrid, Ciudad Universitaria, 28040 Madrid, Spain
| | - Ignacio Colomer
- Instituto
de Química Orgánica General (IQOG-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
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2
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Lohithakshamenon R, Prasanthkumar KP, Femina C, Sajith PK. Bond Strength and Interaction Energies in Togni Reagents: Insights from Molecular Electrostatic Potential-Based Parameters. J Phys Chem A 2024; 128:727-737. [PMID: 38253016 DOI: 10.1021/acs.jpca.3c06378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Togni reagents and their analogs, classified as hypervalent iodine(III) complexes, serve as potent trifluoromethylation agents. The interplay of cis and trans factors plays a pivotal role in shaping their performance, affecting aspects such as bond strength, interaction energies, stability, and subsequent nucleophilic reactions. In this context, we propose the utilization of the molecular electrostatic potential (MESP) at the carbon atom (VC) of the I-CF3 moiety as a sensitive parameter to quantify the cis and trans influences in Togni-type reagents. Our study has shown that VC serves as a convenient probe for determining the heterolytic bond dissociation energy (BDE) and, consequently, assessing the reactivity of these reagents. Moreover, these parameters have been successfully applied to evaluate the strength of the σ-hole interactions with nucleophiles (Cl- and NMe3). Additionally, we provide insights into interactions of Togni reagents with Brønsted acids such as HCl and HSO3F, elucidating them in terms of MESP topological parameters. These findings yield valuable information about the electronic properties of hypervalent iodine reagents, particularly Togni-type reagents, offering the potential for optimizing structurally modified reagents with enhanced activity and stability.
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Affiliation(s)
| | - Kavanal P Prasanthkumar
- Post Graduate and Research Department of Chemistry, Maharaja's College, Ernakulam 682011, India
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3
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Corral Suarez C, Colomer I. Trifluoromethylarylation of alkenes using anilines. Chem Sci 2023; 14:12083-12090. [PMID: 37969609 PMCID: PMC10631225 DOI: 10.1039/d3sc03868h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 10/19/2023] [Indexed: 11/17/2023] Open
Abstract
Nitrogen containing compounds, such as anilines, are some of the most widespread and useful chemical species, although their high and unselective reactivity has prevented their incorporation into many interesting transformations, such as the functionalization of alkenes. Herein we report a method that allows the trifluoromethylarylation of alkenes using anilines, for the first time, with no need for additives, transition metals, photocatalysts or an excess of reagents. An in-depth mechanistic study reveals the key role of hexafluoroisopropanol (HFIP) as a unique solvent, establishing a hydrogen bonding network with aniline and trifluoromethyl reagent, that is responsible for the altered reactivity and exquisite selectivity. This work uncovers a new mode of reactivity that involves the use of abundant anilines as a non-prefunctionalized aromatic source and the simultaneous activation of trifluoromethyl hypervalent iodine reagent.
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Affiliation(s)
- Carlos Corral Suarez
- Instituto de Química Orgánica General (IQOG), CSIC Juan de la Cierva 3 28006 Madrid Spain
- IMDEA Nanociencia, Faraday 9 28049 Madrid Spain
| | - Ignacio Colomer
- Instituto de Química Orgánica General (IQOG), CSIC Juan de la Cierva 3 28006 Madrid Spain
- IMDEA Nanociencia, Faraday 9 28049 Madrid Spain
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4
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Theoretical Study on the Origin of Abnormal Regioselectivity in Ring-Opening Reaction of Hexafluoropropylene Oxide. Molecules 2023; 28:molecules28041669. [PMID: 36838653 PMCID: PMC9962681 DOI: 10.3390/molecules28041669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/19/2023] [Accepted: 02/01/2023] [Indexed: 02/12/2023] Open
Abstract
That nucleophiles preferentially attack at the less sterically hindered carbon of epoxides under neutral and basic conditions has been generally accepted as a fundamental rule for predicting the regioselectivity of this type of reaction. However, this rule does not hold for perfluorinated epoxides, such as hexafluoropropylene oxide (HFPO), in which nucleophiles were found to attack at the more hindered CF3 substituted β-C rather than the fluorine substituted α-C. In this contribution, we aim to shed light on the nature of this intriguing regioselectivity by density functional theory methods. Our calculations well reproduced the observed abnormal regioselectivities and revealed that the unusual regiochemical preference for the sterically hindered β-C of HFPO mainly arises from the lower destabilizing distortion energy needed to reach the corresponding ring-opening transition state. The higher distortion energy required for the attack of the less sterically hindered α-C results from a significant strengthening of the C(α)-O bond by the negative hyperconjugation between the lone pair of epoxide O atom and the antibonding C-F orbital.
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5
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Briand M, Thai LD, Bourdreux F, Vanthuyne N, Moreau X, Magnier E, Anselmi E, Dagousset G. Remote Radical Trifluoromethylation: A Unified Approach to the Selective Synthesis of γ-Trifluoromethyl α,β-Unsaturated Carbonyl Compounds. Org Lett 2022; 24:9375-9380. [PMID: 36534949 DOI: 10.1021/acs.orglett.2c03676] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Site-selective trifluoromethylation of silyl dienol ethers derived from α,β-unsaturated aldehydes, ketones, and amides was achieved for the first time in the remote γ position. This photoredox catalyzed process is quite general to compounds bearing many functionalities and is applicable to the late-stage functionalization of biorelevant molecules. The use of S-perfluoroalkyl sulfoximines as ·RF radical sources enables the generalization of the reaction to other perfluoroalkyl groups (RF = CF2H, C4F9). Importantly, an unprecedented enantioselective C(sp3)-H perfluoroalkylation process is disclosed.
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Affiliation(s)
- Marina Briand
- Université Paris-Saclay, UVSQ, CNRS, UMR 8180 Institut Lavoisier de Versailles, 78035 Versailles Cedex, France
| | - Linh D Thai
- Université Paris-Saclay, UVSQ, CNRS, UMR 8180 Institut Lavoisier de Versailles, 78035 Versailles Cedex, France
| | - Flavien Bourdreux
- Université Paris-Saclay, UVSQ, CNRS, UMR 8180 Institut Lavoisier de Versailles, 78035 Versailles Cedex, France
| | - Nicolas Vanthuyne
- Institut des Sciences Moléculaires de Marseille, Centrale Marseille, UMR 7313, Aix-Marseille Université, CNRS, Avenue Escadrille Normandie Niemen, 13013 Marseille Cedex, France
| | - Xavier Moreau
- Université Paris-Saclay, UVSQ, CNRS, UMR 8180 Institut Lavoisier de Versailles, 78035 Versailles Cedex, France
| | - Emmanuel Magnier
- Université Paris-Saclay, UVSQ, CNRS, UMR 8180 Institut Lavoisier de Versailles, 78035 Versailles Cedex, France
| | - Elsa Anselmi
- Université Paris-Saclay, UVSQ, CNRS, UMR 8180 Institut Lavoisier de Versailles, 78035 Versailles Cedex, France.,Université de Tours, Faculté des Sciences et Techniques, 37200 Tours, France
| | - Guillaume Dagousset
- Université Paris-Saclay, UVSQ, CNRS, UMR 8180 Institut Lavoisier de Versailles, 78035 Versailles Cedex, France
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6
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Ragan AN, Kraemer Y, Kong WY, Prasad S, Tantillo DJ, Pitts CR. Evidence for C–F Bond Formation through Formal Reductive Elimination from Tellurium(VI). Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Abbey N. Ragan
- University of California Davis Chemistry 1 Shields Avenue 95616 Davis UNITED STATES
| | - Yannick Kraemer
- University of California Davis Chemistry 1 Shields Avenue 95616 Davis UNITED STATES
| | - Wang-Yeuk Kong
- University of California Davis Chemistry 1 Shields Avenue 95616 Davis UNITED STATES
| | - Supreeth Prasad
- University of California Davis Chemistry 1 Shields Avenue 95616 Davis UNITED STATES
| | - Dean J. Tantillo
- University of California Davis Chemistry 1 Shields Avenue 95616 Davis UNITED STATES
| | - Cody Ross Pitts
- University of California Davis Department of Chemistry One Shields Avenue 95616 Davis UNITED STATES
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7
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Ragan AN, Kraemer Y, Kong WY, Prasad S, Tantillo DJ, Pitts CR. Evidence for C-F Bond Formation through Formal Reductive Elimination from Tellurium(VI). Angew Chem Int Ed Engl 2022; 61:e202208046. [PMID: 35859267 DOI: 10.1002/anie.202208046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Indexed: 11/10/2022]
Abstract
The fundamental challenge of C-F bond formation by reductive elimination has been met by compounds of select transition metals and fewer main group elements. The work detailed herein expands the list of main group elements known to be capable of reductively eliminating a C-F bond to include tellurium. Surprising and novel modes of both sp2 and sp3 C-F bond formation were observed alongside formation of TeIV cations during two separate attempts to synthesize/characterize fluorinated organotellurium(VI) cations in superacidic media (SbF5 /SO2 ClF). Following detailed low-temperature NMR experiments, the mechanisms of the two unique reductive elimination reactions were probed and investigated using density functional theory (DFT) calculations. Ultimately, we found that an "indirect" reductive elimination pathway is likely operative whereby Sb plays a key role in fluoride abstraction and C-F bond formation, as opposed to unimolecular reductive elimination from a discrete TeVI cation.
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Affiliation(s)
- Abbey N Ragan
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
| | - Yannick Kraemer
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
| | - Wang-Yeuk Kong
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
| | - Supreeth Prasad
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
| | - Dean J Tantillo
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
| | - Cody Ross Pitts
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, CA 95616, USA
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8
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Computational insights into the effects of reagent structure and bases on nucleophilic monofluoromethylation of aldehydes. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.11.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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9
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Jia H, Häring AP, Berger F, Zhang L, Ritter T. Trifluoromethyl Thianthrenium Triflate: A Readily Available Trifluoromethylating Reagent with Formal CF 3+, CF 3•, and CF 3- Reactivity. J Am Chem Soc 2021; 143:7623-7628. [PMID: 33985330 PMCID: PMC8297735 DOI: 10.1021/jacs.1c02606] [Citation(s) in RCA: 83] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
![]()
Here we report the
synthesis and application of trifluoromethyl
thianthrenium triflate (TT-CF3+OTf–) as a novel trifluoromethylating reagent, which is conveniently
accessible in a single step from thianthrene and triflic anhydride.
We demonstrate the use of TT-CF3+OTf– in electrophilic, radical, and nucleophilic trifluoromethylation
reactions.
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Affiliation(s)
- Hao Jia
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Andreas P Häring
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Florian Berger
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Li Zhang
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Tobias Ritter
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
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10
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Li M, Xue XS, Cheng JP. Establishing Cation and Radical Donor Ability Scales of Electrophilic F, CF 3, and SCF 3 Transfer Reagents. Acc Chem Res 2020; 53:182-197. [PMID: 31823601 DOI: 10.1021/acs.accounts.9b00393] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Because of their unique biological, physical, and chemical properties, organofluorine compounds play an increasingly important role in numerous areas of chemistry and everyday life. However, although fluorine is the most abundant halogen in the earth's crust and ranks 13th in abundance among all elements, naturally occurring organofluorine compounds are rare. Consequently, there is a growing demand for the development of safe and efficient reagents and selective synthetic methodologies for the introduction of fluorine or fluorine-containing groups into organic compounds. A wide variety of shelf-stable electrophilic fluorinating and fluoroalkylating reagents have been developed in the past decades. Some of them have also been shown to act as radical sources. These versatile reagents have promoted revolutionary advances in synthetic fluorine chemistry. These developments of novel reagents and the choice of suitable reagents for new reactions have relied largely on the traditional trial-and-error approach because (i) structure-reactivity relationships and mechanisms of reactions of these reagents are sparse and (ii) the rules that govern the synthesis of non-fluorinated analogues cannot necessarily be transposed to fluorinated compounds ( Cahard , D. ; et al. Chem. Soc. Rev. 2014 , 43 , 135 ), since organic fluorine compounds often exhibit unusual properties. Over the past several years, our studies have aimed at establishing comprehensive cation and radical donor scales of electrophilic F, CF3, and SCF3 transfer reagents. We have also developed detailed structure-reactivity relationships. We used density functional theory calculations to systematically investigate the energies required to heterolytically cleave the Y-F/CF3/SCF3 bonds to donate electrophilic F/CF3/SCF3 groups. We found that these energies can be used as convenient indicators of the relative electrophilic fluorinating/trifluoromethylating/trifluoromethylthiolating strengths of these reagents. We have constructed the first comprehensive cation donor scales for electrophilic F, CF3, and SCF3 transfer reagents. In collaboration with Mayr group, we experimentally determined the electrophilicity parameters of SCF3 transfer reagents and demonstrated the importance of intrinsic barriers for predicting their kinetic reactivity. The recognition of the novel application of a few traditional electrophilic reagents as radical sources prompted us further to construct comprehensive radical donor scales of electrophilic F, CF3, and SCF3 transfer reagents. We identified a series of potential new radical F, CF3, and SCF3 donors. Single electron transfer was found to exhibit a substantial effect on activation of the Y-CF3/SCF3 bonds, significantly facilitating the release of CF3/SCF3 radicals. This Account summarizes computational and experimental accomplishments from our group and others to establish the missing links between structure and reactivity for these reagents. Our results pave the way toward the rational optimization, design, and prediction of novel electrophilic fluorinating and fluoroalkylating reagents and new reactions.
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Affiliation(s)
- Man Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiao-Song Xue
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Jin-Pei Cheng
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- Center of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing 100084, China
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11
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Umemoto T, Zhou X, Li Y. A new version of Umemoto’s reagents: A three-step one-pot preparation of 2,3,7,8-tetrafluoro-S-(trifluoromethyl)dibenzothiophenium triflate. J Fluor Chem 2019. [DOI: 10.1016/j.jfluchem.2019.109347] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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12
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Liu Z, Zhang Z, Zhu G, Zhou Y, Yang L, Gao W, Tong L, Tang B. Copper-Catalyzed Aldol Reaction of Vinyl Azides with Trifluoromethyl Ketones. Org Lett 2019; 21:7324-7328. [DOI: 10.1021/acs.orglett.9b02616] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Zhenhua Liu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China
| | - Zhihai Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China
| | - Guangyu Zhu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China
| | - Yiqin Zhou
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China
| | - Lin Yang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China
| | - Wen Gao
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China
| | - Lili Tong
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China
| | - Bo Tang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China
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13
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Kaiser D, Klose I, Oost R, Neuhaus J, Maulide N. Bond-Forming and -Breaking Reactions at Sulfur(IV): Sulfoxides, Sulfonium Salts, Sulfur Ylides, and Sulfinate Salts. Chem Rev 2019; 119:8701-8780. [PMID: 31243998 PMCID: PMC6661881 DOI: 10.1021/acs.chemrev.9b00111] [Citation(s) in RCA: 447] [Impact Index Per Article: 89.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Indexed: 12/13/2022]
Abstract
Organosulfur compounds have long played a vital role in organic chemistry and in the development of novel chemical structures and architectures. Prominent among these organosulfur compounds are those involving a sulfur(IV) center, which have been the subject of countless investigations over more than a hundred years. In addition to a long list of textbook sulfur-based reactions, there has been a sustained interest in the chemistry of organosulfur(IV) compounds in recent years. Of particular interest within organosulfur chemistry is the ease with which the synthetic chemist can effect a wide range of transformations through either bond formation or bond cleavage at sulfur. This review aims to cover the developments of the past decade in the chemistry of organic sulfur(IV) molecules and provide insight into both the wide range of reactions which critically rely on this versatile element and the diverse scaffolds that can thereby be synthesized.
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Affiliation(s)
- Daniel Kaiser
- Institute
of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
| | - Immo Klose
- Institute
of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
| | - Rik Oost
- Institute
of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
| | - James Neuhaus
- Institute
of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
| | - Nuno Maulide
- Institute
of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
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14
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Sreenithya A, Hadad CM, Sunoj RB. Hypercoordinate iodine for catalytic asymmetric diamination of styrene: insights into the mechanism, role of solvent, and stereoinduction. Chem Sci 2019; 10:7082-7090. [PMID: 31588276 PMCID: PMC6676474 DOI: 10.1039/c9sc01513b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 06/07/2019] [Indexed: 01/07/2023] Open
Abstract
Stereoselectivity in the asymmetric diamination of styrene catalyzed by chiral hypercoordinate iodine originates from the prochiral face recognition when the substrate binds to the catalyst.
Hypercoordinate iodine has evolved as an impressive class of catalysts for various organic transformations. Extension of this idea to asymmetric applications, such as in the asymmetric difunctionalization of styrene or its derivatives, constitutes an important reaction. In this study, the mechanism and origin of stereoinduction in styrene diamination, with a sulfonimide (HNMs2) as the diaminating agent and iodoresorcinol (((iPr)2N(CO)-CH(Me)-O)2Ar–I) based chiral hypercoordinate iodine as the catalyst, are investigated using density functional theory calculations. The energetically preferred catalytic pathway has been found to involve, among other steps, two very important mechanistic events: (a) the formation of a catalyst–substrate complex by the action of styrene on the catalyst ArI(NMs2)2, resulting in the displacement of one of the imidates (NMs2–); and (b) a rebound of the departed imidate on the iodine-bound styrene to form an iodonium ion intermediate with a N–C bond. Explicit interaction of the imidate ion with hexafluoroisopropanol (HFIP), used as a solvent additive, lowers the barrier for the formation of the iodonium ion. The P helical fold of the chiral arms of the iodoresorcinol catalyst is found to offer a chiral environment for the reactants. Coordination of the iodine catalyst to the styrene double bond is found to make the benzylic carbon more electrophilic and hence makes it the preferred site for the nucleophilic addition. In the chiral environment of the catalyst, an enhanced polarization of the styrene double bond is noticed when the double bond coordinates through the si prochiral face than the re face. Nucleophilic addition on the re face of the catalyst–substrate complex is associated with a lower activation barrier leading to the experimentally observed S enantiomeric product. The stereoselective model developed in this study can be employed to related asymmetric styrene difunctionalizations using similar hypercoordinate iodine catalysts.
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Affiliation(s)
- A Sreenithya
- Department of Chemistry , Indian Institute of Technology Bombay , Powai , Mumbai 400076 , India .
| | - Christopher M Hadad
- Department of Chemistry and Biochemistry , The Ohio State University , 100 West 18th Avenue , Columbus , Ohio 43210 , USA
| | - Raghavan B Sunoj
- Department of Chemistry , Indian Institute of Technology Bombay , Powai , Mumbai 400076 , India .
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15
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Yang JD, Li M, Xue XS. Computational I(III)-X BDEs for Benziodoxol(on)e-based Hypervalent Iodine Reagents: Implications for Their Functional Group Transfer Abilities. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201800549] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Jin-Dong Yang
- Center of Basic Molecular Science, Department of Chemistry; Tsinghua University; Beijing 100084 China
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry; Nankai University; Tianjin 300071 China
| | - Man Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry; Nankai University; Tianjin 300071 China
| | - Xiao-Song Xue
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry; Nankai University; Tianjin 300071 China
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16
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Jiang H, Sun TY, Chen Y, Zhang X, Wu YD, Xie Y, Schaefer HF. Designing new Togni reagents by computation. Chem Commun (Camb) 2019; 55:5667-5670. [DOI: 10.1039/c9cc01320b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New trifluoromethylating reagents are designed based on trans influence and steric effect.
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Affiliation(s)
- Heming Jiang
- Lab of Computational Chemistry and Drug Design
- State Key Laboratory of Chemical Oncogenomics
- Peking University Shenzhen Graduate School
- Shenzhen 518055
- China
| | - Tian-Yu Sun
- Lab of Computational Chemistry and Drug Design
- State Key Laboratory of Chemical Oncogenomics
- Peking University Shenzhen Graduate School
- Shenzhen 518055
- China
| | - Ying Chen
- Lab of Computational Chemistry and Drug Design
- State Key Laboratory of Chemical Oncogenomics
- Peking University Shenzhen Graduate School
- Shenzhen 518055
- China
| | - Xinhao Zhang
- Lab of Computational Chemistry and Drug Design
- State Key Laboratory of Chemical Oncogenomics
- Peking University Shenzhen Graduate School
- Shenzhen 518055
- China
| | - Yun-Dong Wu
- Lab of Computational Chemistry and Drug Design
- State Key Laboratory of Chemical Oncogenomics
- Peking University Shenzhen Graduate School
- Shenzhen 518055
- China
| | - Yaoming Xie
- Center for Computational Quantum Chemistry
- University of Georgia
- Athens
- USA
| | - Henry F. Schaefer
- Center for Computational Quantum Chemistry
- University of Georgia
- Athens
- USA
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17
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Zhou B, Haj MK, Jacobsen EN, Houk KN, Xue XS. Mechanism and Origins of Chemo- and Stereoselectivities of Aryl Iodide-Catalyzed Asymmetric Difluorinations of β-Substituted Styrenes. J Am Chem Soc 2018; 140:15206-15218. [PMID: 30350956 PMCID: PMC6261351 DOI: 10.1021/jacs.8b05935] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The mechanism of the aryl iodide-catalyzed asymmetric migratory geminal difluorination of β-substituted styrenes ( Banik et al. Science 2016, 353, 51 ) has been explored with density functional theory computations. The computed mechanism consists of (a) activation of iodoarene difluoride (ArIF2), (b) enantiodetermining 1,2-fluoroiodination, (c) bridging phenonium ion formation via SN2 reductive displacement, and (d) regioselective fluoride addition. According to the computational model, the ArIF2 intermediate is stabilized through halogen-π interactions between the electron-deficient iodine(III) center and the benzylic substituents at the catalyst stereogenic centers. Interactions with the catalyst ester carbonyl groups (I(III)+···O) are not observed in the unactivated complex, but do occur upon activation of ArIF2 through hydrogen-bonding interactions with external Brønsted acid (HF). The 1,2-fluoroiodination occurs via alkene complexation to the electrophilic, cationic I(III) center followed by C-F bond formation anti to the forming C-I bond. The bound olefin and the C-I bond of catalyst adopt a spiro arrangement in the favored transition structures but a nearly periplanar arrangement in the disfavored transition structures. Multiple attractive non-covalent interactions, including slipped π···π stacking, C-H···O, and C-H···π interactions, are found to underlie the high asymmetric induction. The chemoselectivity for 1,1-difluorination versus 1,2-difluorination is controlled mainly by (1) the steric effect of the substituent on the olefinic double bond and (2) the nucleophilicity of the carbonyl oxygen of substrate.
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Affiliation(s)
- Biying Zhou
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Moriana K Haj
- Department of Chemistry and Chemical Biology , Harvard University , Cambridge , Massachusetts 02138 , United States
| | - Eric N Jacobsen
- Department of Chemistry and Chemical Biology , Harvard University , Cambridge , Massachusetts 02138 , United States
| | - K N Houk
- Department of Chemistry and Biochemistry , University of California , Los Angeles , California 90095 , United States
| | - Xiao-Song Xue
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
- Department of Chemistry and Biochemistry , University of California , Los Angeles , California 90095 , United States
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18
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Mestre J, Lishchynskyi A, Castillón S, Boutureira O. Trifluoromethylation of Electron-Rich Alkenyl Iodides with Fluoroform-Derived "Ligandless" CuCF 3. J Org Chem 2018; 83:8150-8160. [PMID: 29916255 DOI: 10.1021/acs.joc.8b00927] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
We herein present a flexible approach for the incorporation of CF3 units into a predefined site of electron-rich alkenes that exploits the regiocontrolled introduction of an iodine handle and subsequent trifluoromethylation of the C(sp2)-I bond using fluoroform-derived "ligandless" CuCF3. The broad substrate scope and functional group tolerance together with the scalability and purity of the resulting products enabled the controlled, late-stage synthesis of single regioisomers of complex CF3-scaffolds, such as sugars, nucleosides (antivirals), and heterocycles (indoles and chromones), with potential for academic and industrial applications.
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Affiliation(s)
- Jordi Mestre
- Departament de Química Analítica i Química Orgànica , Universitat Rovira i Virgili , C/Marcel·lí Domingo 1 , 43007 Tarragona , Spain.,Institute of Chemical Research of Catalonia (ICIQ) , The Barcelona Institute of Science and Technology (BIST) , Av. Països Catalans 16 , 43007 Tarragona , Spain
| | - Anton Lishchynskyi
- Institute of Chemical Research of Catalonia (ICIQ) , The Barcelona Institute of Science and Technology (BIST) , Av. Països Catalans 16 , 43007 Tarragona , Spain
| | - Sergio Castillón
- Departament de Química Analítica i Química Orgànica , Universitat Rovira i Virgili , C/Marcel·lí Domingo 1 , 43007 Tarragona , Spain
| | - Omar Boutureira
- Departament de Química Analítica i Química Orgànica , Universitat Rovira i Virgili , C/Marcel·lí Domingo 1 , 43007 Tarragona , Spain
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19
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Li M, Zheng H, Xue XS, Cheng JP. Ordering the relative power of electrophilic fluorinating, trifluoromethylating, and trifluoromethylthiolating reagents: A summary of recent efforts. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.02.039] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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20
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Das P, Takada M, Matsuzaki K, Saito N, Shibata N. SF 5-Pyridylaryl-λ 3-iodonium salts and their utility as electrophilic reagents to access SF 5-pyridine derivatives in the late-stage of synthesis. Chem Commun (Camb) 2018; 53:3850-3853. [PMID: 28317050 DOI: 10.1039/c7cc01043e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Electrophilic pentafluorosulfanyl (SF5) heteroarylation of target molecules using novel reagents is described. Unsymmetrical diaryliodonium reagents 1 having 2-SF5-pyridine have been synthesized in good yields. They are efficient electrophilic reagents for carbon and heterocentered nucleophiles, producing the corresponding SF5-pyridine derivatives in good to excellent yields.
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Affiliation(s)
- Prajwalita Das
- Department of Nanopharmaceutical Sciences, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan.
| | - Masahiro Takada
- Department of Nanopharmaceutical Sciences, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan.
| | - Kohei Matsuzaki
- Department of Nanopharmaceutical Sciences, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan.
| | - Norimichi Saito
- Pharmaceutical Division, Ube Industries, Ltd, Seavans North Bldg., 1-2-1 Shibaura, Minato-ku, Tokyo 105-8449, Japan
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan.
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21
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Wang SM, Song HX, Wang XY, Liu N, Qin HL, Zhang CP. Palladium-catalyzed Mizoroki-Heck-type reactions of [Ph 2SR fn][OTf] with alkenes at room temperature. Chem Commun (Camb) 2018; 52:11893-11896. [PMID: 27711281 DOI: 10.1039/c6cc06089g] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The first Pd-catalyzed Mizoroki-Heck-type reaction of [Ph2SRfn][OTf] with alkenes is described. The reaction of [Ph2SRfn][OTf] (Rfn = CF3, CH2CF3) with alkenes in the presence of 10 mol% Pd[P(t-Bu)3]2 and TsOH at room temperature provided the corresponding phenylation products in good to high yields. The bases that benefit the traditional Mizoroki-Heck reactions severely inhibited the transformation with [Ph2SRfn][OTf], whereas acids significantly improved the reaction. This protocol supplies a new class of cross-coupling partners for Mizoroki-Heck-type reactions and gains important insights into the reactivity of phenylsulfonium salts either with or without fluorine-containing alkyl groups as the promising phenylation reagents in organic synthesis.
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Affiliation(s)
- Shi-Meng Wang
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan 430070, China.
| | - Hai-Xia Song
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan 430070, China.
| | - Xiao-Yan Wang
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan 430070, China.
| | - Nan Liu
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan 430070, China.
| | - Hua-Li Qin
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan 430070, China.
| | - Cheng-Pan Zhang
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan 430070, China.
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22
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Jiang H, Sun TY, Wang X, Xie Y, Zhang X, Wu YD, Schaefer HF. A Twist of the Twist Mechanism, 2-Iodoxybenzoic Acid (IBX)-Mediated Oxidation of Alcohol Revisited: Theory and Experiment. Org Lett 2017; 19:6502-6505. [DOI: 10.1021/acs.orglett.7b03167] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Heming Jiang
- Lab of Computational Chemistry & Drug Design, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, 518055, China
| | - Tian-Yu Sun
- Lab of Computational Chemistry & Drug Design, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, 518055, China
- Center
for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Xiao Wang
- Center
for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Yaoming Xie
- Center
for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Xinhao Zhang
- Lab of Computational Chemistry & Drug Design, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, 518055, China
| | - Yun-Dong Wu
- Lab of Computational Chemistry & Drug Design, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, 518055, China
- College
of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Henry F. Schaefer
- Center
for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602, United States
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23
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Li M, Xue XS, Cheng JP. Mechanism and Origins of Stereoinduction in Natural Cinchona Alkaloid Catalyzed Asymmetric Electrophilic Trifluoromethylthiolation of β-Keto Esters with N-Trifluoromethylthiophthalimide as Electrophilic SCF3 Source. ACS Catal 2017. [DOI: 10.1021/acscatal.7b03007] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Man Li
- State
Key Laboratory of Elemento-Organic Chemistry, College of Chemistry,
Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, People’s Republic of China
| | - Xiao-Song Xue
- State
Key Laboratory of Elemento-Organic Chemistry, College of Chemistry,
Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, People’s Republic of China
| | - Jin-Pei Cheng
- State
Key Laboratory of Elemento-Organic Chemistry, College of Chemistry,
Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, People’s Republic of China
- Center
of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
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24
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Jiang YY, Zhu L, Liang Y, Man X, Bi S. Mechanism of Amide Bond Formation from Carboxylic Acids and Amines Promoted by 9-Silafluorenyl Dichloride Derivatives. J Org Chem 2017; 82:9087-9096. [DOI: 10.1021/acs.joc.7b01637] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yuan-Ye Jiang
- School of Chemistry and Chemical
Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Ling Zhu
- School of Chemistry and Chemical
Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Yujie Liang
- School of Chemistry and Chemical
Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Xiaoping Man
- School of Chemistry and Chemical
Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Siwei Bi
- School of Chemistry and Chemical
Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
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25
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Li M, Zhou B, Xue XS, Cheng JP. Establishing the Trifluoromethylthio Radical Donating Abilities of Electrophilic SCF3-Transfer Reagents. J Org Chem 2017; 82:8697-8702. [DOI: 10.1021/acs.joc.7b01771] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Man Li
- State
Key Laboratory of Elemento-organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Biying Zhou
- State
Key Laboratory of Elemento-organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiao-Song Xue
- State
Key Laboratory of Elemento-organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Jin-Pei Cheng
- State
Key Laboratory of Elemento-organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
- Center
of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing 100084, China
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26
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Umemoto T, Zhang B, Zhu T, Zhou X, Zhang P, Hu S, Li Y. Powerful, Thermally Stable, One-Pot-Preparable, and Recyclable Electrophilic Trifluoromethylating Agents: 2,8-Difluoro- and 2,3,7,8-Tetrafluoro-S-(trifluoromethyl)dibenzothiophenium Salts. J Org Chem 2017; 82:7708-7719. [PMID: 28541682 DOI: 10.1021/acs.joc.7b00669] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Although many electrophilic trifluoromethylating agents have been reported to date, practically useful reagents have yet to be developed. S-(Trifluoromethyl)dibenzothiophenium salts, known as Umemoto's reagents, have two significant drawbacks that have hampered their practical application: (1) synthesis involving many steps and (2) the formation of large amounts of dibenzothiophene as waste after trifluoromethylation. Our idea to substitute fluorine at specific positions on the dibenzothiophenium rings has resulted in massive improvements in the synthesis, properties, reactivity, and applications of these compounds. On the basis of this idea, 2,8-difluoro- and 2,3,7,8-tetrafluoro-S-(trifluoromethyl)dibenzothiophenium triflates and other salts were developed as powerful, thermally stable, one-pot-preparable, and recyclable reagents for the trifluoromethylation of various types of nucleophilic substrates, such as carbanions, (hetero)aromatics, alkenes, alkynes, thiols, sulfinates, and phosphines. This one-pot and recycled production tremendously decreases the chemical and environmental costs of this process. Because of their higher reactivity and thermal stability, these new reagents may have wider applications than Umemoto's reagents. Therefore, these new versions of Umemoto's reagents could be widely used as the first practically useful electrophilic trifluoromethylating agents for the production of many types of trifluoromethyl-containing compounds in academic and industrial applications.
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Affiliation(s)
- Teruo Umemoto
- R&D Center, Zhejiang Jiuzhou Pharmaceutical Co., Ltd., Waisha Road 99, Jiaojiang, Taizhou, Zhejiang 318000, China
| | - Bin Zhang
- R&D Center, Zhejiang Jiuzhou Pharmaceutical Co., Ltd., Waisha Road 99, Jiaojiang, Taizhou, Zhejiang 318000, China
| | - Tianhao Zhu
- R&D Center, Zhejiang Jiuzhou Pharmaceutical Co., Ltd., Waisha Road 99, Jiaojiang, Taizhou, Zhejiang 318000, China
| | - Xiaocong Zhou
- Zhejiang Jiuzhou Pharmaceutical Technology Co., Ltd., Jiangling Road 88, Binjiang, Hangzhou, Zhejiang 310000, China
| | - Peng Zhang
- R&D Center, Zhejiang Jiuzhou Pharmaceutical Co., Ltd., Waisha Road 99, Jiaojiang, Taizhou, Zhejiang 318000, China
| | - Song Hu
- R&D Center, Zhejiang Jiuzhou Pharmaceutical Co., Ltd., Waisha Road 99, Jiaojiang, Taizhou, Zhejiang 318000, China
| | - Yuanqiang Li
- R&D Center, Zhejiang Jiuzhou Pharmaceutical Co., Ltd., Waisha Road 99, Jiaojiang, Taizhou, Zhejiang 318000, China
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27
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Jiang S, Yan TS, Han YC, Cui LQ, Xue XS, Zhang C. Hypervalent-Iodine-Mediated Formation of Epoxides from Carbon(sp2)–Carbon(sp3) Single Bonds. J Org Chem 2017; 82:11691-11702. [DOI: 10.1021/acs.joc.7b00883] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Shan Jiang
- State Key Laboratory of Elemento-Organic
Chemistry, Collaborative Innovation Center of Chemical Science and
Engineering, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Tai-Shan Yan
- State Key Laboratory of Elemento-Organic
Chemistry, Collaborative Innovation Center of Chemical Science and
Engineering, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yong-Chao Han
- State Key Laboratory of Elemento-Organic
Chemistry, Collaborative Innovation Center of Chemical Science and
Engineering, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Li-Qian Cui
- State Key Laboratory of Elemento-Organic
Chemistry, Collaborative Innovation Center of Chemical Science and
Engineering, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiao-Song Xue
- State Key Laboratory of Elemento-Organic
Chemistry, Collaborative Innovation Center of Chemical Science and
Engineering, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Chi Zhang
- State Key Laboratory of Elemento-Organic
Chemistry, Collaborative Innovation Center of Chemical Science and
Engineering, College of Chemistry, Nankai University, Tianjin 300071, China
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28
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Yang JD, Wang Y, Xue XS, Cheng JP. A Systematic Evaluation of the N–F Bond Strength of Electrophilic N–F Reagents: Hints for Atomic Fluorine Donating Ability. J Org Chem 2017; 82:4129-4135. [DOI: 10.1021/acs.joc.7b00036] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jin-Dong Yang
- State
Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Ya Wang
- State
Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiao-Song Xue
- State
Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Jin-Pei Cheng
- State
Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation
Center of Chemical Science and Engineering, College of Chemistry, Nankai University, Tianjin 300071, China
- Center
of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing 100084, China
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29
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Affiliation(s)
- Cai Zhang
- Department of Architecture and Environment; Chongqing Vocational Institute of Safety Technology; Chongqing P. R. China
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30
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Wang Y, Noble A, Sandford C, Aggarwal VK. Enantiospecific Trifluoromethyl-Radical-Induced Three-Component Coupling of Boronic Esters with Furans. Angew Chem Int Ed Engl 2017; 56:1810-1814. [PMID: 28097819 PMCID: PMC5499725 DOI: 10.1002/anie.201611058] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Indexed: 12/14/2022]
Abstract
In the presence of trifluoromethylsulfonium reagents, boronate complexes derived from 2-lithio furan and non-racemic secondary and tertiary alkyl or aryl boronic esters undergo deborylative three-component coupling to give the corresponding 2,5-disubstituted furans with excellent levels of enantiospecificity. The process proceeds via the reaction of boronate complexes with a trifluoromethyl radical, which triggers 1,2-metallate rearrangement upon single-electron oxidation. Alternative electrophiles can also be used in place of trifluoromethylsulfonium reagents to effect similar three-component coupling reactions.
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Affiliation(s)
- Yahui Wang
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK
| | - Adam Noble
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK
| | - Christopher Sandford
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK
| | - Varinder K Aggarwal
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK
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31
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Wang Y, Noble A, Sandford C, Aggarwal VK. Enantiospecific Trifluoromethyl-Radical-Induced Three-Component Coupling of Boronic Esters with Furans. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611058] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Yahui Wang
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| | - Adam Noble
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
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32
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Zhang C. Recent Developments in Trifluoromethylation or Difluoroalkylation by Use of Difluorinated Phosphonium Salts. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601011] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Cai Zhang
- Department of Architecture and Environment; Chongqing Vocational Institute of Safety Technology, Wanzhou District; Chongqing People's Republic of China
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33
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Tomita R, Koike T, Akita M. Photoredox-catalyzed oxytrifluoromethylation of allenes: stereoselective synthesis of 2-trifluoromethylated allyl acetates. Chem Commun (Camb) 2017; 53:4681-4684. [DOI: 10.1039/c7cc01759f] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A novel stereoselective synthesis of 2-CF3-allyl acetates by photocatalytic oxytrifluoromethylation of allenes has been developed.
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Affiliation(s)
- Ren Tomita
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama
- Japan
| | - Takashi Koike
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama
- Japan
| | - Munetaka Akita
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama
- Japan
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34
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Li M, Wang Y, Xue XS, Cheng JP. A Systematic Assessment of Trifluoromethyl Radical Donor Abilities of Electrophilic Trifluoromethylating Reagents. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600539] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Man Li
- State Key Laboratory of Elemento-organic Chemistry; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); College of Chemistry; Nankai University; Tianjin 300071 China
| | - Ya Wang
- State Key Laboratory of Elemento-organic Chemistry; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); College of Chemistry; Nankai University; Tianjin 300071 China
| | - Xiao-Song Xue
- State Key Laboratory of Elemento-organic Chemistry; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); College of Chemistry; Nankai University; Tianjin 300071 China
| | - Jin-Pei Cheng
- State Key Laboratory of Elemento-organic Chemistry; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); College of Chemistry; Nankai University; Tianjin 300071 China
- Center of Basic Molecular Science; Department of Chemistry; Tsinghua University; Beijing 100084 China
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35
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Zhou B, Yan T, Xue XS, Cheng JP. Mechanism of Silver-Mediated Geminal Difluorination of Styrenes with a Fluoroiodane Reagent: Insights into Lewis-Acid-Activation Model. Org Lett 2016; 18:6128-6131. [PMID: 27934395 DOI: 10.1021/acs.orglett.6b03134] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Fluorination mediated by the cyclic hypervalent fluoroiodane reagent (1) often requires an exogenous Lewis acid. The widely accepted Lewis-acid-activation model is that a given Lewis acid binds to the oxygen atom of 1 (O-coordination) to polarize the I-O bond. Computational studies of silver-mediated geminal difluorination of styrenes with 1 reveal a new "F-coordination" model that is energetically much preferred over the commonly accepted "O-coordination" model. The calculations rationalize the regioselective formation of the geminal difluorination product.
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Affiliation(s)
| | | | | | - Jin-Pei Cheng
- Center of Basic Molecular Science, Department of Chemistry, Tsinghua University , Beijing 100084, China
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36
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Shibata N. Development of Shelf-Stable Reagents for Fluoro-Functionalization Reactions. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2016. [DOI: 10.1246/bcsj.20160223] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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37
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Yan T, Zhou B, Xue XS, Cheng JP. Mechanism and Origin of the Unexpected Chemoselectivity in Fluorocyclization of o-Styryl Benzamides with a Hypervalent Fluoroiodane Reagent. J Org Chem 2016; 81:9006-9011. [PMID: 27602695 DOI: 10.1021/acs.joc.6b01642] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The mechanism and origin of the unexpected chemoselectivity in fluorocyclization of o-styryl benzamide with a cyclic hypervalent fluoroiodane reagent were explored with DFT calculations. The calculations suggested an alternative mechanism that is broadly similar to, but also critically different from, the previously proposed mechanism for the formation of an unexpected structurally novel seven-membered 4-fluoro-1,3-benzoxazepine. The amide group of o-styryl benzamide was revealed to be crucial for activating the fluoroiodane reagent and facilitating C-F bond formation. In contrast to the popular electrophilic N-F reagent Selectfluor, the F atom in the fluoroiodane reagent is nucleophilic, and the I(III) atom is the most electrophilic site, thus inducing a completely different reactivity pattern. The insights reported here will be valuable for the further development of new reactions based on the hypervalent fluoroiodane reagent.
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Affiliation(s)
| | | | | | - Jin-Pei Cheng
- Center of Basic Molecular Science, Department of Chemistry, Tsinghua University , Beijing 100084, China
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38
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Jacquet J, Chaumont P, Gontard G, Orio M, Vezin H, Blanchard S, Desage-El Murr M, Fensterbank L. C−N Bond Formation from a Masked High-Valent Copper Complex Stabilized by Redox Non-Innocent Ligands. Angew Chem Int Ed Engl 2016; 55:10712-6. [DOI: 10.1002/anie.201605132] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 07/05/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Jérémy Jacquet
- Sorbonne Universités, UPMC; Université Paris 06, UMR CNRS 8232; Institut Parisien de Chimie Moléculaire; France
| | - Pauline Chaumont
- Sorbonne Universités, UPMC; Université Paris 06, UMR CNRS 8232; Institut Parisien de Chimie Moléculaire; France
| | - Geoffrey Gontard
- Sorbonne Universités, UPMC; Université Paris 06, UMR CNRS 8232; Institut Parisien de Chimie Moléculaire; France
| | - Maylis Orio
- Aix Marseille Université, CNRS; Centrale Marseille, iSm2 UMR 7313; 13397 Marseille cedex 20 France
| | - Hervé Vezin
- Laboratoire de Spectrochimie Infrarouge et Raman; Université des Sciences et Technologies de Lille, UMR CNRS 8516; 59655 Villeneuve O'Ascq Cedex France
| | - Sébastien Blanchard
- Sorbonne Universités, UPMC; Université Paris 06, UMR CNRS 8232; Institut Parisien de Chimie Moléculaire; France
| | - Marine Desage-El Murr
- Sorbonne Universités, UPMC; Université Paris 06, UMR CNRS 8232; Institut Parisien de Chimie Moléculaire; France
| | - Louis Fensterbank
- Sorbonne Universités, UPMC; Université Paris 06, UMR CNRS 8232; Institut Parisien de Chimie Moléculaire; France
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39
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Jacquet J, Chaumont P, Gontard G, Orio M, Vezin H, Blanchard S, Desage-El Murr M, Fensterbank L. C−N Bond Formation from a Masked High-Valent Copper Complex Stabilized by Redox Non-Innocent Ligands. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605132] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jérémy Jacquet
- Sorbonne Universités, UPMC; Université Paris 06, UMR CNRS 8232; Institut Parisien de Chimie Moléculaire; France
| | - Pauline Chaumont
- Sorbonne Universités, UPMC; Université Paris 06, UMR CNRS 8232; Institut Parisien de Chimie Moléculaire; France
| | - Geoffrey Gontard
- Sorbonne Universités, UPMC; Université Paris 06, UMR CNRS 8232; Institut Parisien de Chimie Moléculaire; France
| | - Maylis Orio
- Aix Marseille Université, CNRS; Centrale Marseille, iSm2 UMR 7313; 13397 Marseille cedex 20 France
| | - Hervé Vezin
- Laboratoire de Spectrochimie Infrarouge et Raman; Université des Sciences et Technologies de Lille, UMR CNRS 8516; 59655 Villeneuve O'Ascq Cedex France
| | - Sébastien Blanchard
- Sorbonne Universités, UPMC; Université Paris 06, UMR CNRS 8232; Institut Parisien de Chimie Moléculaire; France
| | - Marine Desage-El Murr
- Sorbonne Universités, UPMC; Université Paris 06, UMR CNRS 8232; Institut Parisien de Chimie Moléculaire; France
| | - Louis Fensterbank
- Sorbonne Universités, UPMC; Université Paris 06, UMR CNRS 8232; Institut Parisien de Chimie Moléculaire; France
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40
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Xue XS, Wang Y, Li M, Cheng JP. Comprehensive Energetic Scale for Quantitatively Estimating the Fluorinating Potential of N–F Reagents in Electrophilic Fluorinations. J Org Chem 2016; 81:4280-9. [DOI: 10.1021/acs.joc.6b00683] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | - Jin-Pei Cheng
- Center
of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing 100084, China
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