1
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Sumii Y, Shibata N. Current State of Microflow Trifluoromethylation Reactions. CHEM REC 2023; 23:e202300117. [PMID: 37309300 DOI: 10.1002/tcr.202300117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/25/2023] [Indexed: 06/14/2023]
Abstract
The trifluoromethyl group is a powerful structural motif in drugs and polymers; thus, developing trifluoromethylation reactions is an important area of research in organic chemistry. Over the past few decades, significant progress has been made in developing new methods for the trifluoromethylation of organic molecules, ranging from nucleophilic and electrophilic approaches to transition-metal catalysis, photocatalysis, and electrolytic reactions. While these reactions were initially developed in batch systems, more recent microflow versions are highly attractive for industrial applications owing to their scalability, safety, and time efficiency. In this review, we discuss the current state of microflow trifluoromethylation. Approaches for microflow trifluoromethylation based on different trifluoromethylation reagents are described, including continuous flow, flow photochemical, microfluidic electrochemical reactions, and large-scale microflow reactions.
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Affiliation(s)
- Yuji Sumii
- Department of Engineering, Nagoya Institute of Technology, Gokiso, Showa-Ku, Nagoya, 466-8555, Japan
| | - Norio Shibata
- Department of Engineering, Nagoya Institute of Technology, Gokiso, Showa-Ku, Nagoya, 466-8555, Japan
- Department of Nanopharmaceutical Sciences, Department of Engineering, Nagoya Institute of Technology, Gokiso, Showa-Ku, Nagoya, 466-8555, Japan
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2
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Jaiswal SK, Yadav RK, Kumar K, Singh S, Chaubey S, Singh P, Tripathi SK, Gupta SK, Kim TW, Singh AP. Easy to make highly efficient FG@ACC stable platform for sp3C-CF3 bond generation and NADH regeneration under sun light. MAIN GROUP CHEMISTRY 2022. [DOI: 10.3233/mgc-220071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The conversion of sun light energy into sustainble greener chemicals are a major obstacle due to the use of expensive and toxic materials. Sun light induced trifluoromethylation emerges as a highly efficient procedure to insert trifluoromethyl groups into the organic compounds. Yet, the expensive and toxic properties of the metal-based photocatalysts creates a major obstacle for the insertion of trifluoromethyl groups. Metal free activated carbon cloth (ACC) emerged as a highly efficient pillar in the area of material science. In this work, we have successfully synthesized self-assembled metal free fast green with activated carbon cloth (FG@ACC) photocatalyst for photocatalytic trifluoromethylation and reduced nicotinamide adenine dinucleotide (NADH) cofactor regeneration (85.89 %, 2 h) under sun light. The sun light induced organic transformation promotes the use of low-cost CF3SO2Na as the CF3 radical source to produce highly selective products with 97% yield.
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Affiliation(s)
- Surendra Kumar Jaiswal
- Department of Chemistry and Environmental Science, Madan Mohan Malaviya University of Technology, Gorakhpur, U.P., India
| | - Rajesh Kumar Yadav
- Department of Chemistry and Environmental Science, Madan Mohan Malaviya University of Technology, Gorakhpur, U.P., India
| | - Krishna Kumar
- Department of Chemistry and Environmental Science, Madan Mohan Malaviya University of Technology, Gorakhpur, U.P., India
| | - Satyam Singh
- Department of Chemistry and Environmental Science, Madan Mohan Malaviya University of Technology, Gorakhpur, U.P., India
| | - Surabhi Chaubey
- Department of Chemistry and Environmental Science, Madan Mohan Malaviya University of Technology, Gorakhpur, U.P., India
- Department of Chemistry, Chandigarh University, Mohali, Punjab, India
| | - Pooja Singh
- Department of Chemistry, Chandigarh University, Mohali, Punjab, India
| | - Santosh Kumar Tripathi
- Defence material Stores and Research & Development Establishment (DMSRDE), Kanpur, India
| | - Sarvesh Kumar Gupta
- Nanoionics and Energy Storage Laboratory (NanoESL), Department of Physics and Material Science, Madan Mohan Malaviya University of Technology, Gorakhpur, U.P., India
| | - Tae Wu Kim
- Department of Chemistry, Mokpo National University, Muan-gun, Jeollanam-do, Republic of Korea
| | - Atul P. Singh
- Department of Chemistry, Chandigarh University, Mohali, Punjab, India
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3
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Strauch C, Schroeder S, Grelier G, Niggemann M. Homolytic N-S Bond Cleavage in Vinyl Triflimides Enabled by Triplet-Triplet Energy Transfer. Chemistry 2022; 28:e202201830. [PMID: 35793203 DOI: 10.1002/chem.202201830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Indexed: 01/07/2023]
Abstract
Vinyl triflimides are a new compound class with unknown reactivity. A computational analysis identified homolytic cleavage of the N-Tf bond induced by triplet-triplet energy transfer (EnT) as a highly interesting reaction type that might be accessible. A combination of experimental and mechanistic work verified this hypothesis and proved the generated radicals to be amenable to radical-radical coupling. Thereby, vinyl triflimides were transformed into a range of α-quaternary, β-trifluoromethylated amines in a 1,2-difunctionalization reaction with no need for external CF3 reagents.
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Affiliation(s)
- Christina Strauch
- Institute of Organic Chemistry, RWTH Aachen, Landoltweg 1, 52074, Aachen, Germany
| | - Sebastian Schroeder
- Institute of Organic Chemistry, RWTH Aachen, Landoltweg 1, 52074, Aachen, Germany
| | - Gwendal Grelier
- Institute of Organic Chemistry, RWTH Aachen, Landoltweg 1, 52074, Aachen, Germany
| | - Meike Niggemann
- Institute of Organic Chemistry, RWTH Aachen, Landoltweg 1, 52074, Aachen, Germany
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4
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Baishya G, Dutta NB. Recent Advances in Direct C−H Trifluoromethylation of N‐Heterocycles. ChemistrySelect 2021. [DOI: 10.1002/slct.202103407] [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]
Affiliation(s)
- Gakul Baishya
- Chemical Sciences & Technology Division CSIR-North East Institute of Science and Technology Jorhat 785006 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Nibedita B. Dutta
- Chemical Sciences & Technology Division CSIR-North East Institute of Science and Technology Jorhat 785006 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
- Rain Forest Research Institute Jorhat 785001 India
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5
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Wei T, Wang K, Yu Z, Hou J, Xie Y. Electrochemically mediated trifluoromethylation of 2H-indazole derivatives using CF3SO2Na. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153313] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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6
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Chu XQ, Ge D, Cui YY, Shen ZL, Li CJ. Desulfonylation via Radical Process: Recent Developments in Organic Synthesis. Chem Rev 2021; 121:12548-12680. [PMID: 34387465 DOI: 10.1021/acs.chemrev.1c00084] [Citation(s) in RCA: 88] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
As the "chemical chameleon", sulfonyl-containing compounds and their variants have been merged with various types of reactions for the efficient construction of diverse molecular architectures by taking advantage of their incredible reactive flexibility. Currently, their involvement in radical transformations, in which the sulfonyl group typically acts as a leaving group via selective C-S, N-S, O-S, S-S, and Se-S bond cleavage/functionalization, has facilitated new bond formation strategies which are complementary to classical two-electron cross-couplings via organometallic or ionic intermediates. Considering the great influence and synthetic potential of these novel avenues, we summarize recent advances in this rapidly expanding area by discussing the reaction designs, substrate scopes, mechanistic studies, and their limitations, outlining the state-of-the-art processes involved in radical-mediated desulfonylation and related transformations. With a specific emphasis on their synthetic applications, we believe this review will be useful for medicinal and synthetic organic chemists who are interested in radical chemistry and radical-mediated desulfonylation in particular.
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Affiliation(s)
- Xue-Qiang Chu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Danhua Ge
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yan-Ying Cui
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Zhi-Liang Shen
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Chao-Jun Li
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, Montreal, Quebec H3A 0B8, Canada
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7
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Jang J, Kim DY. Visible Light Photocatalytic Trifluoromethylation/SET Oxidation/Cycloaddition Sequences of 2‐Vinyl Phenols: Multicomponent Synthesis of 4
H
‐Chromenes. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100118] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Jihoon Jang
- Department of Chemistry and Department of ICT Environmental Health System Soonchunhyang University Asan 31538, Chungnam Republic of Korea
| | - Dae Young Kim
- Department of Chemistry and Department of ICT Environmental Health System Soonchunhyang University Asan 31538, Chungnam Republic of Korea
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8
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Zhang S, Weniger F, Ye F, Rabeah J, Ellinger S, Zaragoza F, Taeschler C, Neumann H, Brückner A, Beller M. Selective nickel-catalyzed fluoroalkylations of olefins. Chem Commun (Camb) 2020; 56:15157-15160. [PMID: 33210679 DOI: 10.1039/d0cc06652d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Mild and selective nickel-catalyzed trifluoromethylation and perfluoroalkylation reactions of alkenes were developed to provide fluorinated olefins, including natural products, pharmaceuticals, and variety of synthetic building blocks in good to excellent yields (38 examples). Control experiments, kinetic measurements and in situ EPR studies reveal the importance of radical species and the formation of 1,2-adducts as intermediates.
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Affiliation(s)
- Shaoke Zhang
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Straße 29a, 18059 Rostock, Germany.
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9
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Wang L, Liu M, Zha W, Wei Y, Ma X, Xu C, Lu C, Qin N, Gao L, Qiu W, Sa R, Fu X, Yuan R. Mechanistic study of visible light-driven CdS or g-C3N4-catalyzed C H direct trifluoromethylation of (hetero)arenes using CF3SO2Na as the trifluoromethyl source. J Catal 2020. [DOI: 10.1016/j.jcat.2020.06.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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10
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Li Y, Neumann H, Beller M. Ruthenium-Catalyzed Site-Selective Trifluoromethylations and (Per)Fluoroalkylations of Anilines and Indoles. Chemistry 2020; 26:6784-6788. [PMID: 32216068 PMCID: PMC7317475 DOI: 10.1002/chem.202001439] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Indexed: 01/05/2023]
Abstract
Introducing (per)fluoroalkyl groups into arenes continues to be an interesting, but challenging area in organofluorine chemistry. We herein report an ortho-selective C-H perfluoroalkylation including trifluoromethylations of anilines and indoles without the need of protecting groups using Rf I and Rf Br as commercially available reagents. The availability and price of the starting materials and the inherent selectivity make this novel methodology attractive for the synthesis of diverse (per)fluoroalkylated building blocks, for example, for bioactive compounds and materials.
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Affiliation(s)
- Yang Li
- Leibniz-Institut für Katalyse e.V., RostockAlbert-Einstein-Straße 29a18059RostockGermany
- School of Environmental and Chemical EngineeringXi'an Polytechnic UniversityNo.19 Jinhua South Road710048Xi'anChina
| | - Helfried Neumann
- Leibniz-Institut für Katalyse e.V., RostockAlbert-Einstein-Straße 29a18059RostockGermany
| | - Matthias Beller
- Leibniz-Institut für Katalyse e.V., RostockAlbert-Einstein-Straße 29a18059RostockGermany
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11
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Zhang S, Weniger F, Kreyenschulte CR, Lund H, Bartling S, Neumann H, Ellinger S, Taeschler C, Beller M. Towards a practical perfluoroalkylation of (hetero)arenes with perfluoroalkyl bromides using cobalt nanocatalysts. Catal Sci Technol 2020. [DOI: 10.1039/c9cy02460c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper report a convenient methodology for perfluoroalkylation including trifluoromethylation of (hetero)arenes with perfluoroalkyl bromides using a specific cobalt-based nanocatalyst.
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Affiliation(s)
- Shaoke Zhang
- Leibniz-Institut für Katalyse an der Universität Rostock e.V
- 18059 Rostock
- Germany
| | - Florian Weniger
- Leibniz-Institut für Katalyse an der Universität Rostock e.V
- 18059 Rostock
- Germany
| | | | - Henrik Lund
- Leibniz-Institut für Katalyse an der Universität Rostock e.V
- 18059 Rostock
- Germany
| | - Stephan Bartling
- Leibniz-Institut für Katalyse an der Universität Rostock e.V
- 18059 Rostock
- Germany
| | - Helfried Neumann
- Leibniz-Institut für Katalyse an der Universität Rostock e.V
- 18059 Rostock
- Germany
| | | | | | - Matthias Beller
- Leibniz-Institut für Katalyse an der Universität Rostock e.V
- 18059 Rostock
- Germany
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12
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Jung HI, Kim Y, Kim DY. Electrochemical trifluoromethylation/semipinacol rearrangement sequences of alkenyl alcohols: synthesis of β-CF 3-substituted ketones. Org Biomol Chem 2019; 17:3319-3323. [PMID: 30869722 DOI: 10.1039/c9ob00373h] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electrochemical oxidative radical trifluoromethylation/semipinacol rearrangement sequences of alkenyl alcohols were developed in this study. This approach is environmentally benign and uses the shelf-stable Langlois reagent as a trifluoromethyl radical precursor and electrons as the oxidizing reagents. The present protocol offers a facile route to prepare β-trifluoromethylated ketone derivatives.
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Affiliation(s)
- Hye Im Jung
- Department of Chemistry, Soonchunhyang University, Asan 31538, Chungnam, Republic of Korea.
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13
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Jud W, Maljuric S, Kappe CO, Cantillo D. Cathodic C–H Trifluoromethylation of Arenes and Heteroarenes Enabled by an in Situ-Generated Triflyltriethylammonium Complex. Org Lett 2019; 21:7970-7975. [DOI: 10.1021/acs.orglett.9b02948] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wolfgang Jud
- Institute of Chemistry, University of Graz, NAWI Graz, Heinrichstrasse 28, 8010 Graz, Austria
- Center for Continuous Flow Synthesis and Processing (CC FLOW), Research Center Pharmaceutical Engineering GmbH (RCPE), Inffeldgasse 13, 8010 Graz, Austria
| | - Snjezana Maljuric
- Institute of Chemistry, University of Graz, NAWI Graz, Heinrichstrasse 28, 8010 Graz, Austria
- Center for Continuous Flow Synthesis and Processing (CC FLOW), Research Center Pharmaceutical Engineering GmbH (RCPE), Inffeldgasse 13, 8010 Graz, Austria
| | - C. Oliver Kappe
- Institute of Chemistry, University of Graz, NAWI Graz, Heinrichstrasse 28, 8010 Graz, Austria
- Center for Continuous Flow Synthesis and Processing (CC FLOW), Research Center Pharmaceutical Engineering GmbH (RCPE), Inffeldgasse 13, 8010 Graz, Austria
| | - David Cantillo
- Institute of Chemistry, University of Graz, NAWI Graz, Heinrichstrasse 28, 8010 Graz, Austria
- Center for Continuous Flow Synthesis and Processing (CC FLOW), Research Center Pharmaceutical Engineering GmbH (RCPE), Inffeldgasse 13, 8010 Graz, Austria
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14
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Baya M, Joven‐Sancho D, Alonso PJ, Orduna J, Menjón B. M−C Bond Homolysis in Coinage‐Metal [M(CF
3
)
4
]
−
Derivatives. Angew Chem Int Ed Engl 2019; 58:9954-9958. [DOI: 10.1002/anie.201903496] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 05/03/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Miguel Baya
- Instituto de Síntesis Química y Catálisis Homogénea (iSQCH)CSIC-Universidad de Zaragoza C/ Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Daniel Joven‐Sancho
- Instituto de Síntesis Química y Catálisis Homogénea (iSQCH)CSIC-Universidad de Zaragoza C/ Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Pablo J. Alonso
- Instituto de Ciencia de Materiales de Aragón (ICMA)CSIC-Universidad de Zaragoza C/ Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Jesús Orduna
- Instituto de Ciencia de Materiales de Aragón (ICMA)CSIC-Universidad de Zaragoza C/ Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Babil Menjón
- Instituto de Síntesis Química y Catálisis Homogénea (iSQCH)CSIC-Universidad de Zaragoza C/ Pedro Cerbuna 12 50009 Zaragoza Spain
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15
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Deng Y, Lu F, You S, Xia T, Zheng Y, Lu C, Yang G, Chen Z, Gao M, Lei A. External‐Oxidant‐Free Electrochemical Oxidative Trifluoromethylation of Arenes Using CF
3
SO
2
Na as the CF
3
Source. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201900168] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yong Deng
- Ministry‐of‐Education Key Laboratory for the Synthesis and Application of Organic Functional Molecule & School of Chemistry and Chemical Engineering, Hubei University Wuhan Hubei 430072 China
| | - Fangling Lu
- Ministry‐of‐Education Key Laboratory for the Synthesis and Application of Organic Functional Molecule & School of Chemistry and Chemical Engineering, Hubei University Wuhan Hubei 430072 China
| | - Siqi You
- Ministry‐of‐Education Key Laboratory for the Synthesis and Application of Organic Functional Molecule & School of Chemistry and Chemical Engineering, Hubei University Wuhan Hubei 430072 China
| | - Tianrui Xia
- Ministry‐of‐Education Key Laboratory for the Synthesis and Application of Organic Functional Molecule & School of Chemistry and Chemical Engineering, Hubei University Wuhan Hubei 430072 China
| | - Yifan Zheng
- Ministry‐of‐Education Key Laboratory for the Synthesis and Application of Organic Functional Molecule & School of Chemistry and Chemical Engineering, Hubei University Wuhan Hubei 430072 China
| | - Cuifen Lu
- Ministry‐of‐Education Key Laboratory for the Synthesis and Application of Organic Functional Molecule & School of Chemistry and Chemical Engineering, Hubei University Wuhan Hubei 430072 China
| | - Guichun Yang
- Ministry‐of‐Education Key Laboratory for the Synthesis and Application of Organic Functional Molecule & School of Chemistry and Chemical Engineering, Hubei University Wuhan Hubei 430072 China
| | - Zuxing Chen
- Ministry‐of‐Education Key Laboratory for the Synthesis and Application of Organic Functional Molecule & School of Chemistry and Chemical Engineering, Hubei University Wuhan Hubei 430072 China
| | - Meng Gao
- Ministry‐of‐Education Key Laboratory for the Synthesis and Application of Organic Functional Molecule & School of Chemistry and Chemical Engineering, Hubei University Wuhan Hubei 430072 China
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University Nanchang Jiangxi 330022 China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences, the Institute for Advanced Studies (IAS), Wuhan University Wuhan Hubei 430072 China
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16
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Baya M, Joven‐Sancho D, Alonso PJ, Orduna J, Menjón B. M−C Bond Homolysis in Coinage‐Metal [M(CF
3
)
4
]
−
Derivatives. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201903496] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Miguel Baya
- Instituto de Síntesis Química y Catálisis Homogénea (iSQCH)CSIC-Universidad de Zaragoza C/ Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Daniel Joven‐Sancho
- Instituto de Síntesis Química y Catálisis Homogénea (iSQCH)CSIC-Universidad de Zaragoza C/ Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Pablo J. Alonso
- Instituto de Ciencia de Materiales de Aragón (ICMA)CSIC-Universidad de Zaragoza C/ Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Jesús Orduna
- Instituto de Ciencia de Materiales de Aragón (ICMA)CSIC-Universidad de Zaragoza C/ Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Babil Menjón
- Instituto de Síntesis Química y Catálisis Homogénea (iSQCH)CSIC-Universidad de Zaragoza C/ Pedro Cerbuna 12 50009 Zaragoza Spain
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17
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Tong Y, Pan H, Huang W, Qiu W, Ding Z, Xu C, Yuan R. Visible-light photocatalytic trifluoromethylation of arenes using graphene oxide as a metal-free photocatalyst. NEW J CHEM 2019. [DOI: 10.1039/c9nj01188a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Graphene oxide sheets can function as a kind of metal-free photocatalyst for the trifluoromethylation of arenes under visible light irradiation.
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Affiliation(s)
- Ying Tong
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University
- Fuzhou 350002
- P. R. China
| | - Hao Pan
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University
- Fuzhou 350002
- P. R. China
| | - Weichao Huang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University
- Fuzhou 350002
- P. R. China
| | - Wenzhao Qiu
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University
- Fuzhou 350002
- P. R. China
| | - Zhengxin Ding
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University
- Fuzhou 350002
- P. R. China
| | - Chao Xu
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University
- Fuzhou 350002
- P. R. China
| | - Rusheng Yuan
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University
- Fuzhou 350002
- P. R. China
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18
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Zhang S, Rotta-Loria N, Weniger F, Rabeah J, Neumann H, Taeschler C, Beller M. A general and practical Ni-catalyzed C-H perfluoroalkylation of (hetero)arenes. Chem Commun (Camb) 2019; 55:6723-6726. [PMID: 31119222 DOI: 10.1039/c9cc01971e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A direct perfluoroalkylation of (hetero)arenes using the air- and moisture-stable complex (dppf)Ni(o-tol)Cl was developed (23 examples). The novel procedure allows for the synthesis of various fluorinated products and tolerates sensitive functional groups including aldehydes, free amino groups and several heterocycles.
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Affiliation(s)
- Shaoke Zhang
- Leibniz-Institut für Katalyse an der Universität Rostock e.V. Albert-Einstein-Strasse 29a, 18059 Rostock, Germany.
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