1
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Logvinenko IG, Sadkova IV, Tolmachova NA, Shishkina SV, Daniliuc CG, Haufe G, Kondratov IS. 4-Trifluoromethoxy proline: synthesis of stereoisomers and lipophilicity study. Org Biomol Chem 2024; 22:7982-7988. [PMID: 38973538 DOI: 10.1039/d4ob00688g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/09/2024]
Abstract
All four stereoisomers of 4-CF3O-proline have been synthesized through a fluorodesulfurization approach using the corresponding 4-hydroxyprolines as starting materials. The investigation of their lipophilicity characteristics and comparison with those of other 4-substituted proline analogs demonstrated a similar impact of CF3 and CF3O groups on log D.
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Affiliation(s)
- Ivan G Logvinenko
- Enamine Ltd, Winston Churchill Str. 78, Kyiv 02094, Ukraine
- Address V.P. Kukhar Institute of Bioorganic Chemistry & Petrochemistry, National Academy of Sciences of Ukraine, Academician Kukhar Str. 1, Kyiv 02094, Ukraine
| | | | | | - Svitlana V Shishkina
- SSI "Institute for Single Crystals" of the National Academy of Sciences of Ukraine, Nauky Ave. 60, Kharkiv 61072, Ukraine
- Institute of Organic Chemistry of the National Academy of Sciences of Ukraine, Academician Kukhar Str. Str. 5, Kyiv 02660, Ukraine
| | - Constantin G Daniliuc
- Organisch-Chemisches Institut, Universität Münster, Corrensstraße 40, Münster 48149, Germany
| | - Günter Haufe
- Organisch-Chemisches Institut, Universität Münster, Corrensstraße 40, Münster 48149, Germany
- Cells-in-Motion Cluster of Excellence, Universität Münster, Waldeyerstraße 15, 48149 Münster, Germany
| | - Ivan S Kondratov
- Enamine Ltd, Winston Churchill Str. 78, Kyiv 02094, Ukraine
- Address V.P. Kukhar Institute of Bioorganic Chemistry & Petrochemistry, National Academy of Sciences of Ukraine, Academician Kukhar Str. 1, Kyiv 02094, Ukraine
- Enamine Germany GmbH, Industriepark Hoechst, G837, 65926 Frankfurt am Main, Germany.
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2
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Yu Q, Zhou D, Yu P, Song C, Ze Tan, Li J. Silver-Catalyzed Decarboxylative Nitrooxylation of Aliphatic Carboxylic Acids. Org Lett 2024; 26:5856-5861. [PMID: 38950381 DOI: 10.1021/acs.orglett.4c02180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/03/2024]
Abstract
Here, we present a silver-catalyzed decarboxylative nitrooxylation via a radical-based approach. The substrate scope of this reaction prototype extends to nonactivated primary and secondary carboxylic acids. This protocol provides a practical method for the synthesis of an unprecedented family of organic nitrates and exhibits wide functional group compatibility. Preliminary mechanistic studies reveal that a high-valent silver(II) nitrate complex is a versatile NO3 resource pool, allowing for facile C-O bond formation.
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Affiliation(s)
- Qian Yu
- College of Chemistry and Chemical Engineering, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, Hunan 410082, China
| | - Donglin Zhou
- College of Chemistry and Chemical Engineering, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, Hunan 410082, China
| | - Pingping Yu
- College of Chemistry and Chemical Engineering, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, Hunan 410082, China
| | - Chunlan Song
- College of Chemistry and Chemical Engineering, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, Hunan 410082, China
| | - Ze Tan
- College of Chemistry and Chemical Engineering, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, Hunan 410082, China
| | - Jiakun Li
- College of Chemistry and Chemical Engineering, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, Hunan 410082, China
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3
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Deng Z, Meng L, Bing X, Niu S, Zhang X, Peng J, Luan YX, Chen L, Tang P. Silver-Enabled Dearomative Trifluoromethoxylation of Indoles. J Am Chem Soc 2024; 146:2325-2332. [PMID: 38232384 DOI: 10.1021/jacs.3c11653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
The only known method for the dearomative trifluoromethoxylation of indoles is preliminary, with only one substrate successfully undergoing the reaction. In this study, we not only developed a broadly applicable method for indole dearomative trifluoromethoxylation but also achieved divergent trifluoromethoxylation by fine-tuning the reaction conditions. Under optimized conditions, with a silver salt and an easily handled OCF3 reagent, various indoles smoothly underwent dearomatization to afford a diverse array of ditrifluoromethoxylated indolines in 50-84% isolated yields with up to 37:1 diastereoselectivity, and fluorinated trifluoromethoxylated indolines were obtained with exclusive trans selectivity. In addition, the reaction conditions were compatible with other heteroaromatic rings as well as styrene moieties.
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Affiliation(s)
- Zhijie Deng
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Lingduan Meng
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiao Bing
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Shaoxiong Niu
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiaofeng Zhang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China
| | - Junqin Peng
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yu-Xin Luan
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Li Chen
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Pingping Tang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
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4
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Barata‐Vallejo S, Bonesi SM, Postigo A. Trifluoromethoxylation Reactions of (Hetero) arenes, Olefinic Systems and Aliphatic Saturated Substrates. Chemistry 2022; 28:e202201776. [DOI: 10.1002/chem.202201776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Sebastian Barata‐Vallejo
- Departamento de Ciencias Químicas Facultad de Farmacia y Bioquímica Universidad de Buenos Aires Junin 954 CP 1113 Buenos Aires Argentina
- Istituto per la Sintesi Organica e la Fotoreattività ISOF Consiglio Nazionale delle Ricerche Via P. Gobetti 101 40129 Bologna Italy
| | - Sergio M. Bonesi
- Departamento de Química Orgánica Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires Ciudad Universitaria C1428EGA Buenos Aires Argentina
| | - Al Postigo
- Departamento de Ciencias Químicas Facultad de Farmacia y Bioquímica Universidad de Buenos Aires Junin 954 CP 1113 Buenos Aires Argentina
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5
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Logvinenko IG, Kondratov IS, Pridma SO, Tolmachova NA, Morev RN, Dolovanyuk VG, Boretskyi AL, Stepanyuk RO, Trofimchuk SA, Mück-Lichtenfeld C, Daniliuc CG, Haufe G. Synthesis and physical chemical properties of CF3O-containg secondary amines – perspective building blocks for Drug Discovery. J Fluor Chem 2022. [DOI: 10.1016/j.jfluchem.2022.109990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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6
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Paquin JF, Bertrand X, Paquin P, Chabaud L. Hydrohalogenation of Unactivated Alkenes Using a Methanesulfonic Acid/Halide Salt Combination. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/s-0040-1719856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AbstractThe hydrochlorination, hydrobromination, and hydroiodination of unactivated alkenes using methanesulfonic acid and inorganic halide salts (CaCl2, LiBr, LiI) in acetic acid are reported. This approach uses readily available and inexpensive reagents to provide the alkyl halides in up to 99% yield. An example of deuteriochlorination using deuterated acetic acid as the solvent is also demonstrated.
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Affiliation(s)
| | | | - Pascal Paquin
- CCVC, PROTEO, Département de chimie, Université Laval
| | - Laurent Chabaud
- Institut des Sciences Moléculaires, UMR 5255, CNRS, Université de Bordeaux
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7
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Abstract
We disclose a silver-catalyzed trifluoromethoxylation of N-tosyl aziridines with trifluoromethyl arylsulfonate. The protocol is characterized by its mild conditions, simple operations, and good chemo- and regioselectivity. In addition, the trifluoromethoxylation of trisubstituted aziridines could construct C-OCF3 quaternary centers exclusively, which is quite rare. This method unlocks a new catalytic blueprint for accessing β-trifluoromethoxylated amines, which could be important building blocks in synthetic chemistry.
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Affiliation(s)
- Jingrui Xin
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiangyu Deng
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Pingping Tang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
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8
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Lu L, Zhao XJ, Dessie W, Xia X, Duan X, He J, Wang R, Liu Y, Wu C. Visible-light-promoted trifluoromethylselenolation of ortho-hydroxyarylenaminones. Org Biomol Chem 2022; 20:1754-1758. [DOI: 10.1039/d1ob02402g] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Development of an efficient process that employs easy to handle and shelf-stable reagents for the synthesis of trifluoromethylselenylated heterocyclics remains a daunting challenge in organic synthesis. Herein, we report a...
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9
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Mizuta S, Kitamura K, Morii Y, Ishihara J, Yamaguchi T, Ishikawa T. Trifluoromethylthiolation of Hindered α-Bromoamides with Nucleophilic Trifluoromethylthiolating Reagents. J Org Chem 2021; 86:18017-18029. [PMID: 34855413 DOI: 10.1021/acs.joc.1c02316] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
General methods have not been previously developed for the synthesis of sterically hindered α-SCF3-substituted carbonyl compounds using nucleophilic trifluoromethylthiolating reagents. Thus, we herein report sp3C-SCF3 bond formation in hindered α-bromoamides containing 3-bromo-oxindoles and linear α-bromoamides using CuSCF3 or AgSCF3 under mild conditions to access sterically hindered α-SCF3-substituted amides. This transformation is applicable to not only 3-SCF3-substituted oxindoles but also primary and secondary amides and reveals a broad functional group tolerance. This method will benefit the fields of medicinal and agricultural chemistry.
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Affiliation(s)
- Satoshi Mizuta
- Center for Bioinformatics and Molecular Medicine, Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo, Nagasaki 852-8521, Japan
| | - Kanami Kitamura
- Center for Bioinformatics and Molecular Medicine, Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo, Nagasaki 852-8521, Japan
| | - Yuki Morii
- Department of Pharmaceutical Organic Chemistry, Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo, Nagasaki 852-8521, Japan
| | - Jun Ishihara
- Department of Pharmaceutical Organic Chemistry, Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo, Nagasaki 852-8521, Japan
| | - Tomoko Yamaguchi
- Center for Bioinformatics and Molecular Medicine, Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo, Nagasaki 852-8521, Japan
| | - Takeshi Ishikawa
- Department of Chemistry, Biotechnology, and Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan
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10
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Abstract
This review provides a short summary of the traditional methods for synthesis of CF3-O-containing compounds, followed by a critical overview of known trifluoromethoxylating reagents, focusing on their preparation, synthetic generality and limitations.
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11
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Lu Z, Kumon T, Hammond GB, Umemoto T. Trifluoromethyl Nonaflate: A Practical Trifluoromethoxylating Reagent and its Application to the Regio‐ and Stereoselective Synthesis of Trifluoromethoxylated Alkenes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104975] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Zhichao Lu
- Department of Chemistry University of Louisville Louisville KY 40292 USA
| | - Tatsuya Kumon
- Faculty of Molecular Chemistry and Engineering Kyoto Institute of Technology Matsugasaki, Sakyo-ku Kyoto 606-8585 Japan
| | - Gerald B. Hammond
- Department of Chemistry University of Louisville Louisville KY 40292 USA
| | - Teruo Umemoto
- Department of Chemistry University of Louisville Louisville KY 40292 USA
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12
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Lu Z, Kumon T, Hammond GB, Umemoto T. Trifluoromethyl Nonaflate: A Practical Trifluoromethoxylating Reagent and its Application to the Regio- and Stereoselective Synthesis of Trifluoromethoxylated Alkenes. Angew Chem Int Ed Engl 2021; 60:16171-16177. [PMID: 34010513 PMCID: PMC8260458 DOI: 10.1002/anie.202104975] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Indexed: 01/18/2023]
Abstract
The trifluoromethoxy group has elicited much interest among drug and agrochemical discovery teams because of its unique properties. We developed trifluoromethyl nonafluorobutanesulfonate (nonaflate), TFNf, an easy-to-handle, bench-stable, reactive, and scalable trifluoromethoxylating reagent. TFNf is easily and safely prepared in a simple process in large scale and the nonaflyl part of TFNf can easily be recovered as nonaflyl fluoride after usage and recycled. The synthetic potency of TFNf was showcased with the underexplored synthesis of various trifluoromethoxylated alkenes, through a high regio- and stereoselective hydro(halo)trifluoromethoxylation of alkyne derivatives such as haloalkynes, alkynyl esters, and alkynyl sulfones. The synthetic merits of TFNf were further underscored with a high-yielding and smooth nucleophilic trifluoromethoxylation of alkyl triflates/bromides and primary/secondary alcohols.
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Affiliation(s)
- Zhichao Lu
- Department of Chemistry, University of Louisville, Louisville, KY, 40292, USA
| | - Tatsuya Kumon
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Gerald B Hammond
- Department of Chemistry, University of Louisville, Louisville, KY, 40292, USA
| | - Teruo Umemoto
- Department of Chemistry, University of Louisville, Louisville, KY, 40292, USA
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13
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You Y, Ge S. Asymmetric Cobalt‐Catalyzed Regioselective Hydrosilylation/Cyclization of 1,6‐Enynes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100775] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yang'en You
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Shaozhong Ge
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
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14
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You Y, Ge S. Asymmetric Cobalt-Catalyzed Regioselective Hydrosilylation/Cyclization of 1,6-Enynes. Angew Chem Int Ed Engl 2021; 60:12046-12052. [PMID: 33683810 DOI: 10.1002/anie.202100775] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 03/03/2021] [Indexed: 11/06/2022]
Abstract
We report an enantioselective cobalt-catalyzed hydrosilylation/cyclization reaction of 1,6-enynes with secondary and tertiary hydrosilanes employing a catalyst generated in situ from the combination of Co(acac)2 and (R,Sp )-Josiphos. A wide range of oxygen-, nitrogen-, and carbon-tethered 1,6-enynes reacted with Ph2 SiH2 , (EtO)3 SiH, or (RO)2 MeSiH to afford the corresponding chiral organosilane products in high yields and up to >99 % ee. This cobalt-catalyzed hydrosilylation/cyclization also occurred with prochiral secondary hydrosilane PhMeSiH2 to yield chiral alkylsilanes containing both carbon- and silicon-stereogenic centers with excellent enantioselectivity, albeit with modest diastereoselectivity. The chiral organosilane products from this cobalt-catalyzed asymmetric hydrosilylation/cyclization could be converted to a variety of chiral five-membered heterocyclic compounds by stereospecific conversion of their C-Si and Si-H bonds without loss of enantiopurity.
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Affiliation(s)
- Yang'en You
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
| | - Shaozhong Ge
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
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15
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Mizuta S, Kitamura K, Kitagawa A, Yamaguchi T, Ishikawa T. Silver-Promoted Fluorination Reactions of α-Bromoamides. Chemistry 2021; 27:5930-5935. [PMID: 33274783 DOI: 10.1002/chem.202004769] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/03/2020] [Indexed: 01/18/2023]
Abstract
Silver-promoted C-F bond formation in α-bromoamides by using AgF under mild conditions is reported. This simple method enables access to tertiary, secondary, and primary alkyl fluorides involving biomolecular scaffolds. This transformation is applicable to primary and secondary amides and shows broad functional-group tolerance. Kinetics experiments revealed that the reaction rate increased in the order of 3°>2°>1° α-carbon atom. In addition, it was found that the acidic amide proton plays an important role in accelerating the reaction. Mechanistic studies suggested generation of an aziridinone intermediate that undergoes subsequent nucleophilic addition to form the C-F bond with stereospecificity (i.e., retention of configuration). The synthesis of sterically hindered alcohols and ethers by using AgI is also demonstrated. Examples of reactions of α-bromoamides with O nucleophiles are presented.
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Affiliation(s)
- Satoshi Mizuta
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo, Nagasaki, 852-8521, Japan
| | - Kanami Kitamura
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo, Nagasaki, 852-8521, Japan
| | - Ayako Kitagawa
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo, Nagasaki, 852-8521, Japan
| | - Tomoko Yamaguchi
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo, Nagasaki, 852-8521, Japan
| | - Takeshi Ishikawa
- Department of Chemistry, Biotechnology and Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima, 890-0065, Japan
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16
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Lu K, Xi X, Zhou T, Lei L, Li Q, Zhao X. Copper-catalysed direct difluoromethylselenolation of aryl boronic acids with Se-(difluoromethyl) 4-methylbenzenesulfonoselenoate. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152897] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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17
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Wang F, Guo Y, Zhang Y, Tang P. Silver-Catalyzed Dibromotrifluoromethoxylation of Terminal Alkynes. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00090] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
| | | | | | - Pingping Tang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
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18
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Jiang X, Tang P. Recent Advances of Trifluoromethoxylation Reactions Using
TFMS
and
TFBO. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000465] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Xiaohuan Jiang
- State Key Laboratory and Institute of Elemento‐Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
| | - Pingping Tang
- State Key Laboratory and Institute of Elemento‐Organic Chemistry, College of Chemistry, Nankai University Tianjin 300071 China
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19
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Hanna S, Wills T, Butcher TW, Hartwig JF. Palladium-Catalyzed Oxidative Dehydrosilylation for Contra-Thermodynamic Olefin Isomerization. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02697] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Steven Hanna
- Division of Chemical Sciences, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Chemistry, University of California, 718 Latimer Hall, Berkeley, California 94708, United States
| | - Tyler Wills
- Department of Chemistry, University of California, 718 Latimer Hall, Berkeley, California 94708, United States
| | - Trevor W. Butcher
- Department of Chemistry, University of California, 718 Latimer Hall, Berkeley, California 94708, United States
| | - John F. Hartwig
- Division of Chemical Sciences, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Chemistry, University of California, 718 Latimer Hall, Berkeley, California 94708, United States
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20
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Abstract
A silver-catalyzed trifluoromethoxylation of alkyl trifluoroborates with trifluoromethyl arylsulfonate as the trifluoromethoxylation reagent has been reported for the first time. This reaction is performed under mild reaction conditions and has wide functional group compatibility. In addition, the mechanism of this site-specific trifluoromethoxylation is proposed as a radical pathway.
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Affiliation(s)
- Xiaohuan Jiang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Pingping Tang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
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21
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Selective C-H trifluoromethoxylation of (hetero)arenes as limiting reagent. Nat Commun 2020; 11:2569. [PMID: 32444828 PMCID: PMC7244481 DOI: 10.1038/s41467-020-16451-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 05/04/2020] [Indexed: 02/01/2023] Open
Abstract
Methods for direct C-H trifluoromethoxylation of arenes and heteroarenes are rare, despite the importance of trifluoromethoxylated compounds for pharmaceuticals, agrochemicals, and material sciences. Especially selective C-H trifluoromethoxylation of pyridines remains a formidable challenge. Here we show a general late-stage C-H trifluoromethoxylation of arenes and heteroarenes as limiting reagent with trifluoromethoxide anion. The reaction is mediated by silver salts under mild reaction conditions, exhibiting broad substrate scope and wide functional-group compatibility. In addition, ortho-position selective C-H trifluoromethoxylation of pyridines is observed. The method is not only applicable to the gram-scale synthesis of trifluoromethoxylated products but also allows efficient late-stage C-H trifluoromethoxylation of marketed small-molecule drugs, common pharmacophores and natural products. Selective C-H trifluoromethoxylation of pyridines remains a formidable synthetic challenge. Here, the authors report a silver-mediated late-stage C-H trifluoromethoxylation of arenes and heteroarenes as limiting reagents with trifluoromethoxide anion.
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22
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Xu W, Xu X, Qing F. Synthesis and Properties of
CF
3
(
OCF
3
)
CH‐Substituted
Arenes and Alkenes
†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000062] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Wen‐Qi 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
| | - Xiu‐Hua Xu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Science 345 Lingling Lu Shanghai 200032 China
| | - Feng‐Ling Qing
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Science 345 Lingling Lu Shanghai 200032 China
- Key Laboratory of Science and Technology of Eco‐Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University 2999 North Renmin Lu Shanghai 201620 China
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23
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Cao S, Ji Q, Li H, Pang M, Yuan H, Zhang J, Bi X. AgN3-Catalyzed Hydroazidation of Terminal Alkynes and Mechanistic Studies. J Am Chem Soc 2020; 142:7083-7091. [DOI: 10.1021/jacs.0c00836] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Shanshan Cao
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Qinghe Ji
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Huaizhi Li
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Maolin Pang
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Haiyan Yuan
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Jingping Zhang
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xihe Bi
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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24
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Synthesis, physico-chemical properties and microsomal stability of compounds bearing aliphatic trifluoromethoxy group. J Fluor Chem 2020. [DOI: 10.1016/j.jfluchem.2020.109461] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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25
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Turksoy A, Scattolin T, Bouayad-Gervais S, Schoenebeck F. Facile Access to AgOCF 3 and Its New Applications as a Reservoir for OCF 2 for the Direct Synthesis of N-CF 3 , Aryl or Alkyl Carbamoyl Fluorides. Chemistry 2020; 26:2183-2186. [PMID: 31922296 DOI: 10.1002/chem.202000116] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Indexed: 12/11/2022]
Abstract
The development of innovative fluorination strategies is greatly dependent also on the availability, safety and practicability of available fluorinating reagents. We herein show a straightforward and quantitative strategy for the preparation of valuable AgOCF3 at room temperature and showcase its performance in trifluoromethoxylations or as reservoir for O=CF2 . This enabled the direct, practical and safe synthesis of valuable N-alkyl/aryl and N-CF3 carbamoyl fluorides from secondary amines and isothiocyanides, respectively. Our mechanistic data indicate that AgOCF3 does not liberate O=CF2 until it is activated by a nucleophilic co-reagent, reinforcing the stability of the salt under our new preparation strategy.
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Affiliation(s)
- Abdurrahman Turksoy
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Thomas Scattolin
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Samir Bouayad-Gervais
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Franziska Schoenebeck
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
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26
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Shi T, Teng S, Gopi Krishna Reddy A, Guo X, Zhang Y, Moore KT, Buckley T, Mason DJ, Wang W, Chapman E, Hu W. Catalytic asymmetric synthesis of 2,5-dihydrofurans using synergistic bifunctional Ag catalysis. Org Biomol Chem 2019; 17:8737-8744. [PMID: 31553003 DOI: 10.1039/c9ob01903k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We report a bifunctional Ag catalyst promoted intramolecular capture of oxonium ylides with alkynes for the enantioselective synthesis of 2,5-dihydrofurans. This represents unprecedented synergistic catalysis of a bifunctional Ag catalyst. Mechanistic studies revealed that [(R)-3,5-DM-BINAP](AgSbF6)2 (9) is likely to be the active catalytic species and that the reaction involves second order kinetics with respect to 9, suggesting that two molecules of 9 are involved in the intramolecular trapping of a Ag-associated oxonium ylide with a Ag-activated alkyne. Based on our mechanistic hypothesis, we further optimized the reaction, rendering a facile approach to 2,5-dihydrofurans in good to excellent yields in a highly chemo- and enantioselective fashion.
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Affiliation(s)
- Taoda Shi
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, Shanghai, China200062 and College of Pharmacy, Department of Pharmacology and Toxicology, the University of Arizona, Tucson, Arizona 85721, USA.
| | - Shenghan Teng
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, Shanghai, China200062
| | | | - Xin Guo
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang Province, China325035
| | - Yueteng Zhang
- College of Pharmacy, Department of Pharmacology and Toxicology, the University of Arizona, Tucson, Arizona 85721, USA.
| | - Kohlson T Moore
- College of Pharmacy, Department of Pharmacology and Toxicology, the University of Arizona, Tucson, Arizona 85721, USA.
| | - Thomas Buckley
- College of Pharmacy, Department of Pharmacology and Toxicology, the University of Arizona, Tucson, Arizona 85721, USA.
| | - Damian J Mason
- College of Pharmacy, Department of Pharmacology and Toxicology, the University of Arizona, Tucson, Arizona 85721, USA.
| | - Wei Wang
- College of Pharmacy, Department of Pharmacology and Toxicology, the University of Arizona, Tucson, Arizona 85721, USA.
| | - Eli Chapman
- College of Pharmacy, Department of Pharmacology and Toxicology, the University of Arizona, Tucson, Arizona 85721, USA.
| | - Wenhao Hu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China510006.
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27
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Cao Y, Jiang L, Yi W. Synthesis of Monofluoromethyl Selenoethers of Aryl and Alkyl from Organoselenocyanate via One‐Pot Reaction. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900480] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yuan Cao
- School of Chemical EngineeringNanjing University of Science and Technology Nanjing 210094 People's Republic of China
| | - Lvqi Jiang
- School of Chemical EngineeringNanjing University of Science and Technology Nanjing 210094 People's Republic of China
| | - Wenbin Yi
- School of Chemical EngineeringNanjing University of Science and Technology Nanjing 210094 People's Republic of China
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28
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Yang S, Chen M, Tang P. Visible‐Light Photoredox‐Catalyzed and Copper‐Promoted Trifluoromethoxylation of Arenediazonium Tetrafluoroborates. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901447] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Shaoqiang Yang
- State Key Laboratory and Institute of Elemento-Organic ChemistryCollege of ChemistryNankai University Tianjin 300071 China
| | - Miao Chen
- State Key Laboratory and Institute of Elemento-Organic ChemistryCollege of ChemistryNankai University Tianjin 300071 China
| | - Pingping Tang
- State Key Laboratory and Institute of Elemento-Organic ChemistryCollege of ChemistryNankai University Tianjin 300071 China
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29
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Yang S, Chen M, Tang P. Visible-Light Photoredox-Catalyzed and Copper-Promoted Trifluoromethoxylation of Arenediazonium Tetrafluoroborates. Angew Chem Int Ed Engl 2019; 58:7840-7844. [PMID: 30964599 DOI: 10.1002/anie.201901447] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Indexed: 01/16/2023]
Abstract
We report the development of photoredox-catalyzed and copper-promoted trifluoromethoxylation of arenediazonium tetrafluoroborates, with trifluoromethyl arylsulfonate (TFMS) as the trifluoromethoxylation reagent. This new method takes advantage of visible-light photoredox catalysis to generate the aryl radical under mild conditions, combined with copper-promoted selective trifluoromethoxylation. The reaction is scalable, tolerates a wide range of functional groups, and proceeds regioselectively under mild reaction conditions. Furthermore, mechanistic studies suggested that a Cs[Cu(OCF3 )2 ] intermediate might be generated during the reaction.
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Affiliation(s)
- Shaoqiang Yang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Miao Chen
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Pingping Tang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
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30
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Qiu YF, Niu YJ, Wei X, Cao BQ, Wang XC, Quan ZJ. AgSCF3/Na2S2O8-Promoted Trifluoromethylthiolation/Cyclization of o-Propargyl Arylazides/o-Alkynyl Benzylazides: Synthesis of SCF3-Substituted Quinolines and Isoquinolines. J Org Chem 2019; 84:4165-4178. [DOI: 10.1021/acs.joc.9b00181] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yi-Feng Qiu
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, People’s Republic of China
| | - Yue-Jie Niu
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, People’s Republic of China
| | - Xi Wei
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, People’s Republic of China
| | - Bao-Qian Cao
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, People’s Republic of China
| | - Xi-Cun Wang
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, People’s Republic of China
| | - Zheng-Jun Quan
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, People’s Republic of China
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, Lanzhou, Gansu 730070, People’s Republic of China
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31
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32
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Xie X, Zhang X, Yang H, Ji X, Li J, Ding S. Iridium-Catalyzed Hydrosilylation of Unactivated Alkenes: Scope and Application to Late-Stage Functionalization. J Org Chem 2019; 84:1085-1093. [PMID: 30562466 DOI: 10.1021/acs.joc.8b02838] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Highly efficient and general Ir-catalyzed hydrosilylation of unactivated alkenes with excellent anti-Markovnikov regioselectivity was described. A broad scope of hydrosilylated products were synthesized economically and conveniently from commercially or naturally available compounds, which provides versatile valuable precursors for organic and medicinal studies.
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Affiliation(s)
- Xingze Xie
- State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering , Beijing University of Chemical Technology , Beijing , 100029 , China
| | - Xueyan Zhang
- State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering , Beijing University of Chemical Technology , Beijing , 100029 , China
| | - Haoyu Yang
- State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering , Beijing University of Chemical Technology , Beijing , 100029 , China
| | - Xin Ji
- State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering , Beijing University of Chemical Technology , Beijing , 100029 , China
| | - Jianing Li
- State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering , Beijing University of Chemical Technology , Beijing , 100029 , China
| | - Shengtao Ding
- State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering , Beijing University of Chemical Technology , Beijing , 100029 , China
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33
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Abstract
A catalytic ring-opening reaction of epoxides by nucleophilic trifluoromethoxylation of trifluoromethyl arylsulfonate has been developed based on the use of a cobalt catalyst. This reaction provides an efficient, simple route for directly construction of a wide range of vicinal trifluoromethoxyhydrins under mild conditions. In addition, this method can convert terminal epoxides into target products with good chemo- and regioselectivity.
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Affiliation(s)
- Jie Liu
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Yongliang Wei
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Pingping Tang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China.,Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300071 , China
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