1
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Yang Y, Miraghaee S, Pace R, Umemoto T, Hammond G. Preparation and Reactivity Study of a Versatile Trifluoromethylthiolating Agent: S-Trifluoromethyl Trifluoromethanesulfonothioate (TTST). Angew Chem Int Ed Engl 2023:e202306095. [PMID: 37285238 DOI: 10.1002/anie.202306095] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/06/2023] [Accepted: 06/07/2023] [Indexed: 06/09/2023]
Abstract
A novel, air and thermally stable, yet highly reactive trifluoromethylthiolating reagent, CF3SO2SCF3 (1), was prepared easily in one step from commercially inexpensive CF3SO2Na and Tf2O. 1 is a highly versatile and atom-efficient reagent that can generate one equivalent of CF3S+, two equivalents of CF3S-, or a combination of CF3S./CF3. species. Many high-yielding CF3S reactions of C, O, S, and N-nucleophiles were achieved, including the simple-step preparations of many reported CF3S reagents. 1 delivered a hitherto hard-to-synthesize ArSOCF3 that was followed by a novel CF3SII-rearrangement. Through Cu or TDAE/Ph3P combinations, 1 generated two equivalents of CF3S anion species, and the photo-catalyzed reactions of alkenes with 1 provided CF3/CF3S-containing products in high atom-efficiency.
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Affiliation(s)
- Yuhao Yang
- University of Louisville College of Arts and Sciences, Chemistry, UNITED STATES
| | | | - Renee Pace
- University of Louisville College of Arts and Sciences, Chemistry, UNITED STATES
| | - Teruo Umemoto
- University of Louisville College of Arts and Sciences, Chemistry, UNITED STATES
| | - Gerald Hammond
- University of Louisville College of Arts and Sciences, Chemistry, 2320 S. Brook, 40208, Louisville, UNITED STATES
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2
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Lipp A, Badir SO, Dykstra R, Gutierrez O, Molander GA. Catalyst-Free Decarbonylative Trifluoromethylthiolation Enabled by Electron Donor-Acceptor Complex Photoactivation. Adv Synth Catal 2021; 363:3507-3520. [PMID: 35273472 PMCID: PMC8903066 DOI: 10.1002/adsc.202100469] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Indexed: 08/06/2023]
Abstract
A catalyst- and additive-free decarbonylative trifluoromethylthiolation of aldehyde feedstocks has been developed. This operationally simple, scalable, and open-to-air transformation is driven by the selective photoexcitation of electron donor-acceptor (EDA) complexes, stemming from the association of 1,4-dihydropyridines (donor) with N-(trifluoromethylthio)phthalimide (acceptor), to trigger intermolecular single-electron transfer events under ambient- and visible light-promoted conditions. Extension to other electron acceptors enables the synthesis of thiocyanates and thioesters, as well as the difunctionalization of [1.1.1] propellane. The mechanistic intricacies of this photochemical paradigm are elucidated through a combination of experimental efforts and high-level quantum mechanical calculations [dispersion-corrected (U)DFT, DLPNO-CCSD(T), and TD-DFT]. This comprehensive study highlights the necessity for EDA complexation for efficient alkyl radical generation. Computation of subsequent ground state pathways reveals that SH2 addition of the alkyl radical to the intermediate radical EDA complex is extremely exergonic and results in a charge transfer event from the dihydropyridine donor to the N-(trifluoromethylthio)phthalimide acceptor of the EDA complex. Experimental and computational results further suggest that product formation also occurs via SH2 reaction of alkyl radicals with 1,2-bis(trifluoromethyl)disulfane, generated in-situ through combination of thiyl radicals.
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Affiliation(s)
- Alexander Lipp
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Shorouk O Badir
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Ryan Dykstra
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Osvaldo Gutierrez
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Gary A Molander
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
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3
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Li X, Zhang Q, Zhang W, Ma J, Wang Y, Pan Y. Metal-free visible-light-enabled vicinal trifluoromethyl dithiolation of unactivated alkenes. Beilstein J Org Chem 2021; 17:551-557. [PMID: 33727978 PMCID: PMC7934782 DOI: 10.3762/bjoc.17.49] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 02/12/2021] [Indexed: 01/28/2023] Open
Abstract
The difunctionalization of alkenes involving a trifluoromethylthio group (SCF3) for the conversion of versatile and readily available olefins into structurally more complex molecules has been successfully studied. However, the disproportionate dithiolation of alkenes is unknown. Herein, a transition-metal-free protocol is presented for the vicinal trifluoromethylthio-thiolation of unactivated alkenes via a radical process under mild conditions with a broad substrate scope and excellent tolerance.
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Affiliation(s)
- Xiaojuan Li
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, and Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Qiang Zhang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, and Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Weigang Zhang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, and Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Jinzhu Ma
- School of pharmacy, Wannan Medical College, Wuhu, 241002, China
| | - Yi Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, and Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yi Pan
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, and Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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4
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Kawanishi R, Nakada K, Shibatomi K. Decarboxylative trifluoromethylthiolation of pyridylacetates. Beilstein J Org Chem 2021; 17:229-233. [PMID: 33564333 PMCID: PMC7849234 DOI: 10.3762/bjoc.17.23] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 01/04/2021] [Indexed: 01/27/2023] Open
Abstract
Decarboxylative trifluoromethylthiolation of lithium pyridylacetates was achieved using N-(trifluoromethylthio)benzenesulfonimide as the electrophilic trifluoromethylthiolation reagent. The reaction afforded the corresponding trifluoromethyl thioethers in good yield. Furthermore, the preparation of lithium pyridylacetates by saponification of the corresponding methyl esters and subsequent decarboxylative trifluoromethylthiolation were performed in a one-pot fashion.
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Affiliation(s)
- Ryouta Kawanishi
- Department of Applied Chemistry and Life Science, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi 441-8580, Japan
| | - Kosuke Nakada
- Department of Applied Chemistry and Life Science, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi 441-8580, Japan
| | - Kazutaka Shibatomi
- Department of Applied Chemistry and Life Science, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi 441-8580, Japan
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5
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Wang D, Carlton CG, Tayu M, McDouall JJW, Perry GJP, Procter DJ. Trifluoromethyl Sulfoxides: Reagents for Metal-Free C-H Trifluoromethylthiolation. Angew Chem Int Ed Engl 2020; 59:15918-15922. [PMID: 32463942 PMCID: PMC7540508 DOI: 10.1002/anie.202005531] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 05/21/2020] [Indexed: 12/22/2022]
Abstract
Trifluoromethyl sulfoxides are a new class of trifluoromethylthiolating reagent. The sulfoxides engage in metal-free C-H trifluoromethylthiolation with a range of (hetero)arenes. The method is also applicable to the functionalization of important compound classes, such as ligand derivatives and polyaromatics, and in the late-stage trifluoromethylthiolation of medicines and agrochemicals. The isolation and characterization of a sulfonium salt intermediate supports an interrupted Pummerer reaction mechanism.
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Affiliation(s)
- Dong Wang
- Department of ChemistryUniversity of ManchesterOxford RoadManchesterM13 9PLUK
| | - C. Grace Carlton
- Department of ChemistryUniversity of ManchesterOxford RoadManchesterM13 9PLUK
| | - Masanori Tayu
- Department of ChemistryUniversity of ManchesterOxford RoadManchesterM13 9PLUK
- Department of ChemistryMeiji Pharmaceutical University2-522-1 NoshioKiyoseTokyo204-8588Japan
| | | | - Gregory J. P. Perry
- Department of ChemistryUniversity of ManchesterOxford RoadManchesterM13 9PLUK
| | - David J. Procter
- Department of ChemistryUniversity of ManchesterOxford RoadManchesterM13 9PLUK
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6
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Granados A, Vallribera A. Asymmetric Preparation of α-Quaternary Fluorinated β-keto Esters. Review. Molecules 2020; 25:E3264. [PMID: 32708946 DOI: 10.3390/molecules25143264] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/10/2020] [Accepted: 07/15/2020] [Indexed: 01/24/2023]
Abstract
In this review, recent advances over the past decade in the preparation of fluorinated stereogenic quaternary centers on β-keto esters compounds are analyzed. Since the incorporation of fluorine and fluorinated groups is of special interest in pharmaceutical chemistry, a range of metal-catalyzed and organocatalyzed methods have been developed. Herein, we review the enantioselective fluorination, trifluoromethylation and trifluoromethylthiolation of 3-oxo esters. The scope, the induction of enantioselectivity and mechanistic investigations are presented.
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7
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Bi MX, Liu S, Huang Y, Xu XH, Qing FL. Cascade trifluoromethylthiolation and cyclization of N-[(3-aryl)propioloyl]indoles. Beilstein J Org Chem 2020; 16:657-662. [PMID: 32318122 PMCID: PMC7155893 DOI: 10.3762/bjoc.16.62] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 03/24/2020] [Indexed: 11/23/2022] Open
Abstract
A cascade oxidative trifluoromethylthiolation and cyclization of N-[(3-aryl)propioloyl]indoles with AgSCF3 is described. This protocol allows for the synthesis of novel bis(trifluoromethylthiolated) or trifluoromethylthiolated pyrrolo[1,2-a]indol-3-ones in moderate to good yields. Mechanistic investigations indicated that radical processes were probably involved in these transformations.
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Affiliation(s)
- Ming-Xi Bi
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
| | - Shuai Liu
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
| | - Yangen Huang
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
| | - Xiu-Hua Xu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Science, 345 Lingling Lu, Shanghai 200032, China
| | - Feng-Ling Qing
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China.,Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Science, 345 Lingling Lu, Shanghai 200032, China
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8
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Zheng J, Cheng R, Lin JH, Yu DH, Ma L, Jia L, Zhang L, Wang L, Xiao JC, Liang SH. An Unconventional Mechanistic Insight into SCF 3 Formation from Difluorocarbene: Preparation of 18 F-Labeled α-SCF 3 Carbonyl Compounds. Angew Chem Int Ed Engl 2017; 56:3196-3200. [PMID: 28194833 DOI: 10.1002/anie.201611761] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Indexed: 11/09/2022]
Abstract
Trifluoromethylthiolation by sulfuration of difluorocarbene with elemental sulfur is described for the first time, which overrides long-standing trifluoromethyl anion-based theory. Mechanistic elucidation reveals an unprecedented chemical process for the formation of thiocarbonyl fluoride and also enables transition-metal-mediated trifluoromethylthiolation and [18 F]trifluoromethylthiolation of α-bromo carbonyl compounds with broad substrate scope and compatibility.
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Affiliation(s)
- Jian Zheng
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Ran Cheng
- School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, China.,Division of Nuclear Medicine and Molecular Imaging and Gordon Center for Medical Imaging, Massachusetts General Hospital & Department of Radiology, Harvard Medical School, 55 Fruit St., White 427, Boston, MA, USA
| | - Jin-Hong Lin
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Dong-Hai Yu
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Longle Ma
- Division of Nuclear Medicine and Molecular Imaging and Gordon Center for Medical Imaging, Massachusetts General Hospital & Department of Radiology, Harvard Medical School, 55 Fruit St., White 427, Boston, MA, USA
| | - Lina Jia
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jialuo Road, Shanghai, 201800, China
| | - Lan Zhang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 2019 Jialuo Road, Shanghai, 201800, China
| | - Lu Wang
- Division of Nuclear Medicine and Molecular Imaging and Gordon Center for Medical Imaging, Massachusetts General Hospital & Department of Radiology, Harvard Medical School, 55 Fruit St., White 427, Boston, MA, USA
| | - Ji-Chang Xiao
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Steven H Liang
- Division of Nuclear Medicine and Molecular Imaging and Gordon Center for Medical Imaging, Massachusetts General Hospital & Department of Radiology, Harvard Medical School, 55 Fruit St., White 427, Boston, MA, USA
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9
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Liu X, An R, Zhang X, Luo J, Zhao X. Enantioselective Trifluoromethylthiolating Lactonization Catalyzed by an Indane-Based Chiral Sulfide. Angew Chem Int Ed Engl 2016; 55:5846-50. [PMID: 27027644 DOI: 10.1002/anie.201601713] [Citation(s) in RCA: 124] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Indexed: 12/14/2022]
Abstract
Enantioselective trifluoromethylthiolation, especially of alkenes, is a challenging task. In this work, we have developed an efficient approach for enantioselective trifluoromethylthiolating lactonization by designing an indane-based bifunctional chiral sulfide catalyst and a shelf-stable electrophilic SCF3 reagent. The desired products were formed with diastereoselectivities of >99:1 and good to excellent enantioselectivities. The transformation represents the first enantioselective trifluoromethylthiolation of alkenes and the first enantioselective trifluoromethylthiolation that is enabled by a catalyst with a Lewis basic sulfur center.
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Affiliation(s)
- Xiang Liu
- Institute of Organic Chemistry & MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Rui An
- Institute of Organic Chemistry & MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Xuelin Zhang
- Institute of Organic Chemistry & MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Jie Luo
- Institute of Organic Chemistry & MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Xiaodan Zhao
- Institute of Organic Chemistry & MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, 510275, China.
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10
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Candish L, Pitzer L, Gómez-Suárez A, Glorius F. Visible Light-Promoted Decarboxylative Di- and Trifluoromethylthiolation of Alkyl Carboxylic Acids. Chemistry 2016; 22:4753-6. [PMID: 26840376 DOI: 10.1002/chem.201600421] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Indexed: 12/29/2022]
Abstract
Described herein is a new and straightforward decarboxylative di- and trifluoromethylthiolation of alkyl carboxylic acids promoted by visible light. This approach enables the synthesis of biologically relevant alkyl SCF2H and SCF3 compounds from cheap and abundant carboxylic acids. The method is operationally simple, using irradiation from household light sources, and its mild reaction conditions make it tolerant of a range of functional groups. The strategy employs electrophilic phthalimide-derived di- and trifluoromethylthiolation reagents and exploits the ability of the imidyl radical to carry a radical chain.
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Affiliation(s)
- Lisa Candish
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Lena Pitzer
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Adrián Gómez-Suárez
- 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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11
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Honeker R, Garza-Sanchez RA, Hopkinson MN, Glorius F. Visible-Light-Promoted Trifluoromethylthiolation of Styrenes by Dual Photoredox/Halide Catalysis. Chemistry 2016; 22:4395-9. [PMID: 26880666 DOI: 10.1002/chem.201600190] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Indexed: 11/07/2022]
Abstract
Herein, we report a new visible-light-promoted strategy to access radical trifluoromethylthiolation reactions by combining halide and photoredox catalysis. This approach allows for the synthesis of vinyl-SCF3 compounds of relevance in pharmaceutical chemistry directly from alkenes under mild conditions with irradiation from household light sources. Furthermore, alkyl-SCF3-containing cyclic ketone and oxindole derivatives can be accessed by radical-polar crossover semi-pinacol and cyclization processes. Inexpensive halide salts play a crucial role in activating the trifluoromethylthiolating reagent towards photoredox catalysis and aid the formation of the SCF3 radical.
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Affiliation(s)
- Roman Honeker
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149, Münster, Germany
| | - R Aleyda Garza-Sanchez
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149, Münster, Germany
| | - Matthew N Hopkinson
- 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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12
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Huang Z, Okuyama K, Wang C, Tokunaga E, Li X, Shibata N. 2-Diazo-1-phenyl-2-((trifluoromethyl)sulfonyl)ethan-1-one: Another Utility for Electrophilic Trifluoromethylthiolation Reactions. ChemistryOpen 2016; 5:188-191. [PMID: 27933224 PMCID: PMC5126259 DOI: 10.1002/open.201500225] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Indexed: 11/25/2022] Open
Abstract
2‐Diazo‐1‐phenyl‐2‐((trifluoromethyl)sulfonyl)ethan‐1‐one (diazo‐triflone) (2) is not only a building block but also a reagent. In this study, diazo‐triflone, which was originally used for the synthesis of β‐lactam triflones as a trifluoromethanesulfonyl (SO2CF3) building block under catalyst‐free thermal conditions, is redisclosed as an effective electrophilic trifluoromethylthiolation reagent under copper catalysis. A broad set of enamines, indoles, β‐keto esters, pyrroles, and anilines were nicely transformed into corresponding trifluoromethylthio (SCF3) compounds in good to high yields by diazo‐triflone under copper catalysis via an electrophilic‐type reaction. A coupling‐type trifluoromethylthiolation reaction of aryl iodides was also realized by diazo‐triflone in acceptable yields.
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Affiliation(s)
- Zhongyan Huang
- Department of Nanopharmaceutical Sciences Nagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Kenta Okuyama
- Department of Nanopharmaceutical Sciences Nagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Chen Wang
- Department of Nanopharmaceutical Sciences Nagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan; Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry Ministry of Education Shaanxi University of Science & Technology Xi'an 710021 P. R. China
| | - Etsuko Tokunaga
- Department of Nanopharmaceutical Sciences Nagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
| | - Xiaorui Li
- Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry Ministry of Education Shaanxi University of Science & Technology Xi'an 710021 P. R. China
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences Nagoya Institute of Technology Gokiso, Showa-ku Nagoya 466-8555 Japan
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13
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Vinogradova EV, Müller P, Buchwald SL. Structural reevaluation of the electrophilic hypervalent iodine reagent for trifluoromethylthiolation supported by the crystalline sponge method for X-ray analysis. Angew Chem Int Ed Engl 2014; 53:3125-8. [PMID: 24677728 PMCID: PMC4045216 DOI: 10.1002/anie.201310897] [Citation(s) in RCA: 187] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Indexed: 01/09/2023]
Abstract
Hypervalent iodine λ3-benziodoxoles are common electrophilic transfer reagents known for their enhanced stability compared to their non-cyclic analogues. Herein we present data showing that chlorobenziodoxole reacts with two different thiolate nucleophiles (thiocyanate and trifluoromethylthiolate), resulting in the formation of stable thioperoxy complexes rather than the expected benziodoxole derivatives. We further report a revised structure for the earlier described electrophilic trifluoromethylthiolation reagent (1), which was previously believed to contain the benziodoxole framework. Our findings, which are based on a combination of analytical techniques, including the recently introduced crystalline sponge method for X-ray analysis, unambiguously demonstrate that 1 is a thioperoxy compound both in solution and the solid state.
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Affiliation(s)
- Ekaterina V. Vinogradova
- Department of Chemistry, Room 18-490 Massachusetts Institute of Technology Cambridge, MA 02139 (USA)
| | - Peter Müller
- Department of Chemistry, Room 18-490 Massachusetts Institute of Technology Cambridge, MA 02139 (USA)
| | - Stephen L. Buchwald
- Department of Chemistry, Room 18-490 Massachusetts Institute of Technology Cambridge, MA 02139 (USA)
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14
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Deng QH, Rettenmeier C, Wadepohl H, Gade LH. Copper-boxmi complexes as highly enantioselective catalysts for electrophilic trifluoromethylthiolations. Chemistry 2013; 20:93-7. [PMID: 24339164 DOI: 10.1002/chem.201303641] [Citation(s) in RCA: 131] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2013] [Indexed: 11/07/2022]
Abstract
The enantioselective trifluoromethylthiolation of β-ketoesters using chiral copper-boxmi complexes as catalysts is reported. A number of α-SCF3-substituted β-ketoesters have been obtained with up to >99% enantiomeric excess (ee), and the trifluoromethylthiolated products were then transformed diastereoselectively to α-SCF3-β-hydroxyesters with two adjacent quaternary stereocenters.
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Affiliation(s)
- Qing-Hai Deng
- Catalysis Research Laboratory (CaRLa), Im Neuenheimer Feld 270, 69120 Heidelberg (Germany)
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Landelle G, Panossian A, Pazenok S, Vors JP, Leroux FR. Recent advances in transition metal-catalyzed Csp(2)-monofluoro-, difluoro-, perfluoromethylation and trifluoromethylthiolation. Beilstein J Org Chem 2013; 9:2476-536. [PMID: 24367416 PMCID: PMC3869273 DOI: 10.3762/bjoc.9.287] [Citation(s) in RCA: 223] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Accepted: 10/10/2013] [Indexed: 12/14/2022] Open
Abstract
In the last few years, transition metal-mediated reactions have joined the toolbox of chemists working in the field of fluorination for Life-Science oriented research. The successful execution of transition metal-catalyzed carbon-fluorine bond formation has become a landmark achievement in fluorine chemistry. This rapidly growing research field has been the subject of some excellent reviews. Our approach focuses exclusively on transition metal-catalyzed reactions that allow the introduction of -CFH2, -CF2H, -C n F2 n +1 and -SCF3 groups onto sp² carbon atoms. Transformations are discussed according to the reaction-type and the metal employed. The review will not extend to conventional non-transition metal methods to these fluorinated groups.
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Affiliation(s)
- Grégory Landelle
- CNRS-Université de Strasbourg, UMR 7509, SynCat, ECPM, 25 Rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Armen Panossian
- CNRS-Université de Strasbourg, UMR 7509, SynCat, ECPM, 25 Rue Becquerel, 67087 Strasbourg Cedex 02, France
| | - Sergiy Pazenok
- Bayer CropScience AG, Alfred-Nobel-Strasse 50, 40789 Monheim, Germany
| | - Jean-Pierre Vors
- Bayer SAS, 14 impasse Pierre Baizet, 69263 Lyon, Cedex 09, France
| | - Frédéric R Leroux
- CNRS-Université de Strasbourg, UMR 7509, SynCat, ECPM, 25 Rue Becquerel, 67087 Strasbourg Cedex 02, France
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Alazet S, Ollivier K, Billard T. Direct electrophilic N- trifluoromethylthiolation of amines with trifluoromethanesulfenamide. Beilstein J Org Chem 2013; 9:2354-7. [PMID: 24367399 PMCID: PMC3869241 DOI: 10.3762/bjoc.9.270] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Accepted: 10/10/2013] [Indexed: 11/23/2022] Open
Abstract
The CF3SN moiety is a substituent with interesting properties. However, there is no easy synthetic access to molecules bearing this group. The trifluoromethanesulfenamide is a new reagent for the electrophilic trifluoromethylthiolation which reacts easily with amines to obtain trifluoromethylsulfanylamines with good yields.
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Affiliation(s)
- Sébastien Alazet
- Institute of Chemistry and Biochemistry (ICBMS – UMR CNRS 5246), Université de Lyon, Université Lyon 1, CNRS, 43 Bd du 11 novembre 1918 – 69622 Lyon, France
- CERMEP - in vivo imaging, Groupement Hospitalier Est, 59 Bd Pinel – 69003 Lyon, France
| | - Kevin Ollivier
- Institute of Chemistry and Biochemistry (ICBMS – UMR CNRS 5246), Université de Lyon, Université Lyon 1, CNRS, 43 Bd du 11 novembre 1918 – 69622 Lyon, France
| | - Thierry Billard
- Institute of Chemistry and Biochemistry (ICBMS – UMR CNRS 5246), Université de Lyon, Université Lyon 1, CNRS, 43 Bd du 11 novembre 1918 – 69622 Lyon, France
- CERMEP - in vivo imaging, Groupement Hospitalier Est, 59 Bd Pinel – 69003 Lyon, France
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