1
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Han S, Liang M, Ju W, Wang J, Xu X, Huang Z, Zhao Y. Ruthenium-Catalyzed Meta-Selective Trifluoroisopropylation of Arenes. J Org Chem 2024; 89:8601-8609. [PMID: 38835151 DOI: 10.1021/acs.joc.4c00549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
This work reports the mild and efficient Ru-catalyzed trifluoroisopropylation of arenes using 2-bromo-1,1,1-trifluoropropane. Various bioactive molecules, such as purine and nucleoside derivatives, were well-suited for this transformation, affording the corresponding products in moderate-to-good yields. This method provides an efficient strategy for synthesizing trifluoroisopropyl molecules for drug discovery.
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Affiliation(s)
- Shuxiong Han
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Min Liang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Wenjie Ju
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Junrui Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Xu Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Zhibin Huang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Yingsheng Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453000, P. R. China
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2
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Singh S, Singh RP. Photoinduced metal-free trifluoro/perfluoroalkylation of heteroarenes. Org Biomol Chem 2024; 22:4072-4076. [PMID: 38717247 DOI: 10.1039/d4ob00511b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/23/2024]
Abstract
A practical and straightforward protocol to access trifluoromethylated/perfluoroalkylated heteroarenes via radical-type nucleophilic substitution rather than typical radical-type electrophilic substitution is described here. The substrate scope was observed to be broad and diverse-covering arenes, heteroarenes (containing N, O, S), bioactive cores, and allylic cores. Mechanistic studies confirmed a radical-mediated reaction pathway.
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Affiliation(s)
- Shashank Singh
- Department of Chemistry, Indian Institute of Technology, Delhi Hauz Khas, New Delhi, 110016, India.
| | - Ravi P Singh
- Department of Chemistry, Indian Institute of Technology, Delhi Hauz Khas, New Delhi, 110016, India.
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3
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Fernandes AJ, Giri R, Houk KN, Katayev D. Review and Theoretical Analysis of Fluorinated Radicals in Direct C Ar-H Functionalization of (Hetero)arenes. Angew Chem Int Ed Engl 2024; 63:e202318377. [PMID: 38282182 DOI: 10.1002/anie.202318377] [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: 11/30/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 01/30/2024]
Abstract
We highlight key contributions in the field of direct radical CAr- H (hetero)aromatic functionalization involving fluorinated radicals. A compilation of Functional Group Transfer Reagents and their diverse activation mechanisms leading to the release of radicals are discussed. The substrate scope for each radical is analyzed and classified into three categories according to the electronic properties of the substrates. Density functional theory computational analysis provides insights into the chemical reactivity of several fluorinated radicals through their electrophilicity and nucleophilicity parameters. Theoretical analysis of their reduction potentials also highlights the remarkable correlation between electrophilicity and oxidizing ability. It is also established that highly fluorinated radicals (e.g. ⋅OCF3) are capable of engaging in single-electron transfer (SET) processes rather than radical addition, which is in good agreement with experimental literature data. A reactivity scale, based on activation barrier of addition of these radicals to benzene is also elaborated using the high accuracy DLPNO-(U)CCSD(T) method.
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Affiliation(s)
- Anthony J Fernandes
- Department für Chemie und Biochemie, Universität Bern, Freiestrasse 3, 3012, Bern, Switzerland
| | - Rahul Giri
- Department für Chemie und Biochemie, Universität Bern, Freiestrasse 3, 3012, Bern, Switzerland
| | - Kendall N Houk
- Department of Chemistry and Biochemistry, University of California, 90095, Los Angeles, California, United States
| | - Dmitry Katayev
- Department für Chemie und Biochemie, Universität Bern, Freiestrasse 3, 3012, Bern, Switzerland
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4
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Purushotam, Bera A, Banerjee D. Recent advances on non-precious metal-catalysed fluorination, difluoromethylation, trifluoromethylation, and perfluoroalkylation of N-heteroarenes. Org Biomol Chem 2023; 21:9298-9315. [PMID: 37855147 DOI: 10.1039/d3ob01132a] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
This review highlights the recent advances, from 2015 to 2023, on the introduction of organo-fluorine derivatives at the N-heteroarene core. Notable features considering new technologies based on organofluorine compounds such as: (i) approaches based on non-precious metal catalysis (Fe, Co, Mn, Ni, etc.), (ii) the development of new strategies using non-precious metal-catalysts for the introduction of organo-fluorinine derivatives using N-heterocycles with one or more heteroatoms, (iii) newer reagents for fluorination, difluoromethylation, trifluoromethylation, or perfluoroalkylation of N-heteroarenes using different approaches, (iv) mechanistic studies on various catalytic transformations, as and when required, and (v) the synthetic applications of various bio-active organo-fluorine compounds, including post-synthetic drug derivatization, are discussed.
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Affiliation(s)
- Purushotam
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
| | - Atanu Bera
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
| | - Debasis Banerjee
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
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5
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Tsuruta T, Spinnato D, Moon HW, Leutzsch M, Cornella J. Bi-Catalyzed Trifluoromethylation of C(sp 2)-H Bonds under Light. J Am Chem Soc 2023; 145:25538-25544. [PMID: 37963280 PMCID: PMC10690797 DOI: 10.1021/jacs.3c10333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/01/2023] [Accepted: 11/03/2023] [Indexed: 11/16/2023]
Abstract
We disclose a Bi-catalyzed C-H trifluoromethylation of (hetero)arenes using CF3SO2Cl under light irradiation. The catalytic method permits the direct functionalization of various heterocycles bearing distinct functional groups. The structural and computational studies suggest that the process occurs through an open-shell redox manifold at bismuth, comprising three unusual elementary steps for a main group element. The catalytic cycle starts with rapid oxidative addition of CF3SO2Cl to a low-valent Bi(I) catalyst, followed by a light-induced homolysis of Bi(III)-O bond to generate a trifluoromethyl radical upon extrusion of SO2, and is closed with a hydrogen-atom transfer to a Bi(II) radical intermediate.
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Affiliation(s)
- Takuya Tsuruta
- Max-Planck-Institut für
Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an
der Ruhr, 45470, Germany
| | - Davide Spinnato
- Max-Planck-Institut für
Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an
der Ruhr, 45470, Germany
| | - Hye Won Moon
- Max-Planck-Institut für
Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an
der Ruhr, 45470, Germany
| | - Markus Leutzsch
- Max-Planck-Institut für
Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an
der Ruhr, 45470, Germany
| | - Josep Cornella
- Max-Planck-Institut für
Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an
der Ruhr, 45470, Germany
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6
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Kuninobu Y. Regioselective C-H Trifluoromethylation and Its Related Reactions of (Hetero)aromatic Compounds. CHEM REC 2023; 23:e202300003. [PMID: 36899485 DOI: 10.1002/tcr.202300003] [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: 01/04/2023] [Revised: 02/04/2023] [Indexed: 03/12/2023]
Abstract
Fluorinated functional groups, including trifluoromethyl group, play important roles in the development of drugs, agrochemicals, and organic functional materials. Therefore, the development of highly effective and practical reactions to introduce fluorinated functional groups into (hetero)aromatic compounds is highly desirable. We have achieved several regioselective C-H trifluoromethylation and related reactions by electrophilic and nucleophilic activation of six-membered heteroaromatic compounds and steric protection of aromatic compounds. These reactions proceed in good to excellent yields, even on a gram scale, with high functional group tolerance, and are applicable to the regioselective trifluoromethylation of drug molecules. In this personal account, the background of the introduction reactions of fluorinated functional groups, our reaction designs to achieve regioselective C-H trifluoromethylation and the related reactions of (hetero)aromatic compounds are explained.
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Affiliation(s)
- Yoichiro Kuninobu
- Institute for Materials Chemistry and Engineering, Interdisciplinary Engineering Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasugakoen, Kasuga-shi, Fukuoka 816-8580, Japan
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7
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Liu H, He X, Chen Z, Zhang J, Fang X, Sun Z, Chu W. N-Trifluoromethyl Succinimide as a New Reagent for Direct C-H Trifluoromethylation of Free Anilines. Chem Asian J 2023; 18:e202300039. [PMID: 36815283 DOI: 10.1002/asia.202300039] [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: 01/17/2023] [Revised: 02/10/2023] [Accepted: 02/22/2023] [Indexed: 02/24/2023]
Abstract
N-trifluoromethylsuccinimide (NTFS) as a new trifluoromethylation reagent was designed and prepared via Ag-CF3 , and applied to the direct trifluoromethylation of free aniline, and a series of trifluoromethyl products were obtained with good yields. The practicability of the protocol was verified by a gram-level experiment and the synthesis of the antiasthmatic drug Mabuterol. In addition, a possible radical mechanism was proposed and verified by related experiments. The protocol provided a new solution for C-H trifluoromethylation of free anilines.
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Affiliation(s)
- Hao Liu
- School of Chemistry and Materials Science, Heilongjiang University, Harbin, Heilongjiang, 150080, P. R. China
| | - Xin He
- School of Chemistry and Materials Science, Heilongjiang University, Harbin, Heilongjiang, 150080, P. R. China
| | - Zhicheng Chen
- School of Chemistry and Materials Science, Heilongjiang University, Harbin, Heilongjiang, 150080, P. R. China
| | - Jingchao Zhang
- School of Chemistry and Materials Science, Heilongjiang University, Harbin, Heilongjiang, 150080, P. R. China
| | - Xinjie Fang
- School of Chemistry and Materials Science, Heilongjiang University, Harbin, Heilongjiang, 150080, P. R. China
| | - Zhizhong Sun
- School of Chemistry and Materials Science, Heilongjiang University, Harbin, Heilongjiang, 150080, P. R. China
| | - Wenyi Chu
- School of Chemistry and Materials Science, Heilongjiang University, Harbin, Heilongjiang, 150080, P. R. China
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8
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Diversification of pharmaceutical molecules via late-stage C(sp2)–H functionalization. GREEN SYNTHESIS AND CATALYSIS 2023. [DOI: 10.1016/j.gresc.2022.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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9
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Ma R, Ren Y, Deng Z, Wang KH, Wang J, Huang D, Hu Y, Lv X. Visible Light Promotes Cascade Trifluoromethylation/Cyclization, Leading to Trifluoromethylated Polycyclic Quinazolinones, Benzimidazoles and Indoles. Molecules 2022; 27:molecules27238389. [PMID: 36500485 PMCID: PMC9737949 DOI: 10.3390/molecules27238389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/22/2022] [Accepted: 11/24/2022] [Indexed: 12/04/2022] Open
Abstract
Efficient visible-light-induced radical cascade trifluoromethylation/cyclization of inactivated alkenes with CF3Br, which is a nonhygroscopic, noncorrosive, cheap and industrially abundant chemical, was developed in this work, producing trifluoromethyl polycyclic quinazolinones, benzimidazoles and indoles under mild reaction conditions. The method features wide functional group compatibility and a broad substrate scope, offering a facile strategy to pharmaceutically produce valuable CF3-containing polycyclic aza-heterocycles.
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Affiliation(s)
- Ransong Ma
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Yuanyuan Ren
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Zhoubin Deng
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Ke-Hu Wang
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Junjiao Wang
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Danfeng Huang
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Yulai Hu
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
- Correspondence:
| | - Xiaobo Lv
- Shanghai Sinofluoro Chemicals Co., Ltd., Shanghai 201321, China
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10
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Zhang H, Feng C, Chen N, Zhang S. Direct Arene Trifluoromethylation Enabled by a High‐Valent Cu
III
−CF
3
Compound. Angew Chem Int Ed Engl 2022; 61:e202209029. [DOI: 10.1002/anie.202209029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Hao‐Ran Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering Jiangnan University 1800 Lihu Road Wuxi 214122, Jiangsu China
| | - Cong‐Cong Feng
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering Jiangnan University 1800 Lihu Road Wuxi 214122, Jiangsu China
| | - Ning Chen
- School of Chemistry and Chemical Engineering Xinjiang Agricultural University 311 Nongda East Road Urumqi 830052, Xinjiang China
| | - Song‐Lin Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering Jiangnan University 1800 Lihu Road Wuxi 214122, Jiangsu China
- School of Chemistry and Chemical Engineering Xinjiang Agricultural University 311 Nongda East Road Urumqi 830052, Xinjiang China
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11
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Tang Z, Mo K, Ma X, Huang J, Zhao D. para
‐Selective Radical Trifluoromethylation of Benzamide Derivatives via Iminium Intermediates. Angew Chem Int Ed Engl 2022; 61:e202208089. [DOI: 10.1002/anie.202208089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Zhanyong Tang
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-Sen University Guangzhou China
| | - Ke Mo
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-Sen University Guangzhou China
| | - Xiaoqiang Ma
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-Sen University Guangzhou China
| | - Jialin Huang
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-Sen University Guangzhou China
| | - Depeng Zhao
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-Sen University Guangzhou China
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12
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Zhang HR, Feng CC, Chen N, Zhang SL. Direct Arene Trifluoromethylation Enabled by a High‐Valent Cu(III)‐CF3 Compound. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hao-Ran Zhang
- Jiangnan University School of Chemical and Material Engineering 214122 Wuxi CHINA
| | - Cong-Cong Feng
- Jiangnan University School of Chemical and Material Engineering 214122 Wuxi CHINA
| | - Ning Chen
- Xinjiang Agricultural University School of Chemistry and Chemical Engineering Urumqi CHINA
| | - Song-Lin Zhang
- Jiangnan University School of Chemical and Material Engineering 1800 Lihu Road 214122 Wuxi CHINA
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13
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Arun R, Stiniya S, Saranya PV, Anilkumar G. An Overview of Palladium-catalyzed Trifluoromethylation Reactions. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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14
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Baguia H, Evano G. Direct Perfluoroalkylation of C−H Bonds in (Hetero)arenes. Chemistry 2022; 28:e202200975. [DOI: 10.1002/chem.202200975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Hajar Baguia
- Laboratoire de Chimie Organique Service de Chimie et Physico-Chimie Organiques Université libre de Bruxelles (ULB) Avenue F. D. Roosevelt 50, CP160/06 1050 Brussels Belgium
| | - Gwilherm Evano
- Laboratoire de Chimie Organique Service de Chimie et Physico-Chimie Organiques Université libre de Bruxelles (ULB) Avenue F. D. Roosevelt 50, CP160/06 1050 Brussels Belgium
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15
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Chen D, Jiang J, Wan J. Advances in the Transition Metal‐Free C‐H Trifluoromethylation. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Demao Chen
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education. College of Chemistry and Chemical Engineering Jiangxi Normal University Nanchang 330022 P. R. China
| | - Jianwen Jiang
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education. College of Chemistry and Chemical Engineering Jiangxi Normal University Nanchang 330022 P. R. China
| | - Jie‐Ping Wan
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education. College of Chemistry and Chemical Engineering Jiangxi Normal University Nanchang 330022 P. R. China
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16
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Cousins DL, Lim YH, Harrity JPA. A Mild and Regioselective Route to Fluoroalkyl Aromatic Compounds via Directed Cycloaddition Reactions. J Org Chem 2022; 87:9764-9768. [PMID: 35802868 PMCID: PMC9365296 DOI: 10.1021/acs.joc.2c00800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
![]()
The synthesis of perfluoroalkyl-substituted (hetero)arenes
by benzannulation
strategies is complementary to ring functionalization approaches as
it obviates the need for pre-existing functionality and innate regiocontrol.
We report a mild and regiospecific boron-directed benzannulation method
as a vehicle for accessing a range of perfluoroalkyl-substituted (hetero)aromatic
building blocks that can be readily elaborated through established
C–B bond functionalization processes.
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Affiliation(s)
- David L Cousins
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, U.K.,Organic and Biomolecular Chemistry, Institute of Sustainability for Chemicals, Energy and Environment, A*STAR, 8 Biomedical Grove, Neuros, #07-01, Singapore 138665, Singapore
| | - Yee Hwee Lim
- Organic and Biomolecular Chemistry, Institute of Sustainability for Chemicals, Energy and Environment, A*STAR, 8 Biomedical Grove, Neuros, #07-01, Singapore 138665, Singapore
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17
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Zhao D, Tang Z, Mo K, Ma X, Huang J. para‐Selective Radical Trifluoromethylation of Benzamide Derivatives via Iminium Intermediates. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Depeng Zhao
- School of Pharmaceutical Sciences Sun Yat-sen University Waihuan East Road 510006 Guangzhou CHINA
| | - Zhanyong Tang
- Sun Yat-Sen University School of Pharmaceutical Sciences Wai-Huan east roadNo. 132 Guangzhou CHINA
| | - Ke Mo
- Sun Yat-Sen University School of Pharmaceutical Sciences WaiHuan east roadNo 132 Guangzhou CHINA
| | - Xiaoqiang Ma
- Sun Yat-Sen University School of Pharmaceutical Sciences Waihuan east roadNo. 132 Guangzhou CHINA
| | - Jialin Huang
- Sun Yat-Sen University School of Pharmaceutical Sciences Waihuan east roadNo. 132 Guangzhou CHINA
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18
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Ma C, Li S, Lv X, Ren J, Feng L. A Direct Method for Synthesis of Fluorinated Quinazolinones and Quinoxalines Using Fluorinated Acids without Metals or Additives. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1824-6352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractThe trifluoromethyl group only exists in synthetic compounds. Owing to the unique bioactivities of this group, the trifluoromethylation of alkanes, arenes, unsaturated compounds like olefins, aldehydes, and ketones, and heterocycles has been studied constantly in recent decades. Herein, a direct method using trifluoroacetic acid as a CF3 source for the synthesis of 2-(trifluoromethyl)quinazolin-4-ones and 4-(trifluoromethyl)pyrrolo/indolo[1,2-a]quinoxalines without any catalysts or additives is reported; a wide range of fluorinated compounds were obtained in 52%–94% yield.
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19
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Ma R, Deng Z, Wang KH, Wang J, Huang D, Su Y, Hu Y, Lv X. Photoinduced Trifluoromethylation with CF 3Br as a Trifluoromethyl Source: Synthesis of α-CF 3-Substituted Ketones. ACS OMEGA 2022; 7:14357-14362. [PMID: 35573213 PMCID: PMC9089747 DOI: 10.1021/acsomega.2c01241] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 03/31/2022] [Indexed: 05/22/2023]
Abstract
An efficient and novel photoinduced trifluoromethylation employing CF3Br as a trifluoromethyl source is described. With commercially accessible fac-Ir(III)(ppy)3 as the catalyst, radical trifluoromethylation between O-silyl enol ether and CF3Br occurs successfully. This method provides various α-CF3-substituted ketones with a broad substrate scope in good yields under mild reaction conditions.
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Affiliation(s)
- Ransong Ma
- College
of Chemistry and Chemical Engineering, Northwest
Normal University, 967 Anning East Road, Lanzhou 730070, P. R. China
| | - Zhoubin Deng
- College
of Chemistry and Chemical Engineering, Northwest
Normal University, 967 Anning East Road, Lanzhou 730070, P. R. China
| | - Ke-Hu Wang
- College
of Chemistry and Chemical Engineering, Northwest
Normal University, 967 Anning East Road, Lanzhou 730070, P. R. China
| | - Junjiao Wang
- College
of Chemistry and Chemical Engineering, Northwest
Normal University, 967 Anning East Road, Lanzhou 730070, P. R. China
| | - Danfeng Huang
- College
of Chemistry and Chemical Engineering, Northwest
Normal University, 967 Anning East Road, Lanzhou 730070, P. R. China
| | - Yingpeng Su
- College
of Chemistry and Chemical Engineering, Northwest
Normal University, 967 Anning East Road, Lanzhou 730070, P. R. China
| | - Yulai Hu
- College
of Chemistry and Chemical Engineering, Northwest
Normal University, 967 Anning East Road, Lanzhou 730070, P. R. China
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xiaobo Lv
- Shanghai
Sinofluoro Chemicals Co., Ltd., Shanghai 201321, P. R.
China
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20
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Xiao F, Lin JH, Hao F, Zheng X, Guo Y, Xiao JC. Visible light mediated C-H trifluoromethylation of (hetero)arenes. Org Chem Front 2022. [DOI: 10.1039/d2qo00067a] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A protocol on visible light mediated C-H trifluoromethylation of unactivated (hetero)arenes under blue LED irradiation has been developed. The reaction enables the rapid construction of a range of CF3-containing (hetero)arenes...
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21
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Li HP, He XH, Peng C, Li JL, Han B. A straightforward access to trifluoromethylated natural products through late-stage functionalization. Nat Prod Rep 2022; 40:988-1021. [DOI: 10.1039/d2np00056c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
This review summarizes the applications of late-stage strategies in the direct trifluoromethylation of natural products in the past ten years, with particular emphasis on the reaction model of each method.
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Affiliation(s)
- He-Ping Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Xiang-Hong He
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Jun-Long Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Bo Han
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
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22
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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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23
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Bock L, Schultheiß SK, Maschauer S, Lasch R, Gradl S, Prante O, Zard SZ, Heinrich MR. Synthesis of 2‐(Chlorodifluoromethyl)indoles for Nucleophilic Halogen Exchange with [
18
F]Fluoride. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100937] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Leonard Bock
- Department of Chemistry and Pharmacy, Pharmaceutical Chemistry Friedrich-Alexander-Universität Erlangen-Nürnberg Nikolaus-Fiebiger-Str. 10 91058 Erlangen Germany
| | - Stefanie K. Schultheiß
- Department of Chemistry and Pharmacy, Pharmaceutical Chemistry Friedrich-Alexander-Universität Erlangen-Nürnberg Nikolaus-Fiebiger-Str. 10 91058 Erlangen Germany
| | - Simone Maschauer
- Department of Nuclear Medicine, Molecular Imaging and Radiochemistry Friedrich-Alexander-Universität Erlangen-Nürnberg Schwabachanlage 12 91054 Erlangen Germany
| | - Roman Lasch
- Department of Chemistry and Pharmacy, Pharmaceutical Chemistry Friedrich-Alexander-Universität Erlangen-Nürnberg Nikolaus-Fiebiger-Str. 10 91058 Erlangen Germany
| | - Susanne Gradl
- Department of Chemistry and Pharmacy, Pharmaceutical Chemistry Friedrich-Alexander-Universität Erlangen-Nürnberg Nikolaus-Fiebiger-Str. 10 91058 Erlangen Germany
| | - Olaf Prante
- Department of Nuclear Medicine, Molecular Imaging and Radiochemistry Friedrich-Alexander-Universität Erlangen-Nürnberg Schwabachanlage 12 91054 Erlangen Germany
| | - Samir Z. Zard
- Laboratoire de Synthèse Organique associé au CNRS Ecole Polytechnique 91128 Palaiseau France
| | - Markus R. Heinrich
- Department of Chemistry and Pharmacy, Pharmaceutical Chemistry Friedrich-Alexander-Universität Erlangen-Nürnberg Nikolaus-Fiebiger-Str. 10 91058 Erlangen Germany
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24
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Beller M, Fischer F, Locher A, Neumann H, Taeschler C, Ye F, Zhang S. Recent Developments and Aspects of Industrial Fluoroalkylation. Chimia (Aarau) 2021; 75:923-935. [PMID: 34798914 DOI: 10.2533/chimia.2021.923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Fluoroalkylations have received increasing attention in the academic and industrial environment due to the particular properties of the active ingredients that are strongly influenced by fluoroalkyl substituents. The inherent difficulties of introducing a fluoroalkyl substituent into advanced intermediates has triggered the development of an enormous number of specialized reagents, which, however, are often not suitable for large scale applications. In contrast to this reagent based fluoroalkylation approach, the direct activation of industrially readily available fluoroalkyl halides could be more suitable for a large-scale process. In this way the dithionite initiated fluoroalkylation as well as newly developed catalytically activated fluoroalkylation protocols were considered for industrial large-scale applications.
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Affiliation(s)
- Matthias Beller
- Leibniz-Institut für Katalyse an der Universität Rostock e. V., Albert-Einstein-Strasse 29a, 18059 Rostock (Germany)
| | - Florian Fischer
- Leibniz-Institut für Katalyse an der Universität Rostock e. V., Albert-Einstein-Strasse 29a, 18059 Rostock (Germany)
| | | | - Helfried Neumann
- Leibniz-Institut für Katalyse an der Universität Rostock e. V., Albert-Einstein-Strasse 29a, 18059 Rostock (Germany)
| | | | - Fei Ye
- Leibniz-Institut für Katalyse an der Universität Rostock e. V., Albert-Einstein-Strasse 29a, 18059 Rostock (Germany)
| | - Shaoke Zhang
- Leibniz-Institut für Katalyse an der Universität Rostock e. V., Albert-Einstein-Strasse 29a, 18059 Rostock (Germany)
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25
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Yerien DE, Lantaño B, Barata‐Vallejo S, Postigo A. Catalytic Fluoroalkylation Reactions of Alkoxy‐substituted (Hetero)Arenes. ChemCatChem 2021. [DOI: 10.1002/cctc.202100997] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Damian E. Yerien
- Departamento de Ciencias Químicas Facultad de Farmacia y Bioquímica Universidad de Buenos Aires Junín 954 CP 1113 Buenos Aires Argentina
| | - Beatriz Lantaño
- Departamento de Ciencias Químicas Facultad de Farmacia y Bioquímica Universidad de Buenos Aires Junín 954 CP 1113 Buenos Aires Argentina
| | - Sebastián Barata‐Vallejo
- Departamento de Ciencias Químicas Facultad de Farmacia y Bioquímica Universidad de Buenos Aires Junín 954 CP 1113 Buenos Aires Argentina
- ISOF Consiglio Nazionale delle Ricerche Via P. Gobetti 101 40129 Bologna Italy
| | - Al Postigo
- Departamento de Ciencias Químicas Facultad de Farmacia y Bioquímica Universidad de Buenos Aires Junín 954 CP 1113 Buenos Aires Argentina
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26
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Liu S, Su YL, Sun TY, Doyle MP, Wu YD, Zhang X. Precise Introduction of the -CH nX 3-n (X = F, Cl, Br, I) Moiety to Target Molecules by a Radical Strategy: A Theoretical and Experimental Study. J Am Chem Soc 2021; 143:13195-13204. [PMID: 34374531 DOI: 10.1021/jacs.1c05208] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Addition of halomethyl radicals to form bioactive molecules has recently become an efficient strategy. The reaction has a bottleneck, however, which is the effective and selective generation of the proper halomethyl •CHnX3-n radical by combining CHnX4-n with a carbon radical. Understanding the reactivity and selectivity of carbon radicals in the hydrogen atom transfer (HAT) and halogen atom transfer (XAT) reactions of CHnX4-n is key to the development of such an attractive method. With the help of the emerging data-driven strategy, DFT calculations were used to explore various correlations. For selectivity, the relative energy barriers between HAT and XAT reactions (ΔG⧧H - ΔG⧧X) correlate reasonably well with the three parameters ΔGH, ΔGX, and IP, and the correlation studies reveal that the calculated IPinver and the experimental ΔBDE can be used to conveniently predict the selectivity. Predicted selectivities are consistent with experimental determinations. This work not only provides a possibility for selecting carbon radicals with the known or easily obtained physicochemical data but also demonstrates that the informatic workflow such as generating data and identifying correlations has potential applications in mining reaction rules.
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Affiliation(s)
- Siqi Liu
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.,Shenzhen Bay Laboratory, Shenzhen, 518132, China
| | - Yong-Liang Su
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Tian-Yu Sun
- Shenzhen Bay Laboratory, Shenzhen, 518132, China
| | - Michael P Doyle
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States
| | - Yun-Dong Wu
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.,Shenzhen Bay Laboratory, Shenzhen, 518132, China.,Lab of Computational Chemistry and Drug Design, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Xinhao Zhang
- Shenzhen Bay Laboratory, Shenzhen, 518132, China.,Lab of Computational Chemistry and Drug Design, State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
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27
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Jiang Y, Li B, Ma N, Shu S, Chen Y, Yang S, Huang Z, Shi D, Zhao Y. Photoredox‐Catalyst‐Enabled
para
‐Selective Trifluoromethylation of
tert
‐Butyl Arylcarbamates. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105631] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yaqiqi Jiang
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science, Soochow University Suzhou 215123 P. R. China
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453000 P. R. China
| | - Bao Li
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453000 P. R. China
| | - Nana Ma
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals Key Laboratory of Green Chemical Media and Reactions Ministry of Education School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453000 P. R. China
| | - Sai Shu
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science, Soochow University Suzhou 215123 P. R. China
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453000 P. R. China
| | - Yujie Chen
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science, Soochow University Suzhou 215123 P. R. China
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453000 P. R. China
| | - Shan Yang
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science, Soochow University Suzhou 215123 P. R. China
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453000 P. R. China
| | - Zhibin Huang
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science, Soochow University Suzhou 215123 P. R. China
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453000 P. R. China
| | - Daqing Shi
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science, Soochow University Suzhou 215123 P. R. China
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453000 P. R. China
| | - Yingsheng Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry Chemical Engineering and Materials Science, Soochow University Suzhou 215123 P. R. China
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang 453000 P. R. China
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28
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Lantaño B, Yerien DE, Barata-Vallejo S, Postigo A. Visible light-catalyzed fluoroalkylation reactions of free aniline derivatives. Photochem Photobiol Sci 2021; 20:971-983. [PMID: 34283407 DOI: 10.1007/s43630-021-00078-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 07/15/2021] [Indexed: 11/24/2022]
Abstract
The electron-rich nature of aminoaromatic compounds and the electrophilic character of fluoroalkyl RF radicals allow for a special match in substitution reactions. We herein present visible light photocatalyzed fluoroalkylation reactions of aniline derivatives, with a study of the reaction mechanisms. The examples evaluated make use of different photocatalysts, such as polypyridyl complexes of Ir or Ru transition metals, organic dyes such as Rose Bengal, phthalocyanine-metal organocatalysts, or visible-light activated complexes. Different visible light sources that span from the blue region of the electromagnetic spectrum to low power red light irradiation sources deliver the excited photocatalysts that ensue into the production of fluoroalkyl RF radicals. In turn, many sources of RF radicals can be employed, such as fluoroalkyl halides, Togni's reagents, Umemoto's reagent, etc. All these protocol variants demonstrate the expansion of the methodology and the versatility of photocatalytic techniques applied to a special family of organic compounds such as aminoaromatic substrates, which has been studied by different groups. Contributions from our own laboratory will be given.
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Affiliation(s)
- Beatriz Lantaño
- Departamento de Ciencias Químicas, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín 954, CP 1113, Buenos Aires, Argentina
| | - Damian E Yerien
- Departamento de Ciencias Químicas, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín 954, CP 1113, Buenos Aires, Argentina
| | - Sebastián Barata-Vallejo
- Departamento de Ciencias Químicas, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín 954, CP 1113, Buenos Aires, Argentina.,ISOF, Consiglio Nazionale Delle Ricerche, Via P. Gobetti 101, 40129, Bologna, Italy
| | - Al Postigo
- Departamento de Ciencias Químicas, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín 954, CP 1113, Buenos Aires, Argentina.
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29
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Jiang Y, Li B, Ma N, Shu S, Chen Y, Yang S, Huang Z, Shi D, Zhao Y. Photoredox-Catalyst-Enabled para-Selective Trifluoromethylation of tert-Butyl Arylcarbamates. Angew Chem Int Ed Engl 2021; 60:19030-19034. [PMID: 34160867 DOI: 10.1002/anie.202105631] [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: 04/26/2021] [Revised: 06/22/2021] [Indexed: 01/26/2023]
Abstract
The direct incorporation of a trifluoromethyl group on an aromatic ring using a radical pathway has been extensively investigated. However, the direct highly para-selective C-H trifluoromethylation of a class of arenes has not been achieved. In this study, we report a light-promoted 4,5-dichlorofluorescein (DCFS)-enabled para-selective C-H trifluoromethylation of arylcarbamates using Langlois reagent. The preliminary mechanistic study revealed that the activated organic photocatalyst coordinated with the arylcarbamate led to para-selective C-H trifluoromethylation. Ten-gram scale reaction performs well highlighting the synthetic importance of this new protocol.
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Affiliation(s)
- Yaqiqi Jiang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453000, P. R. China
| | - Bao Li
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453000, P. R. China
| | - Nana Ma
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453000, P. R. China
| | - Sai Shu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453000, P. R. China
| | - Yujie Chen
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453000, P. R. China
| | - Shan Yang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453000, P. R. China
| | - Zhibin Huang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453000, P. R. China
| | - Daqing Shi
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453000, P. R. China
| | - Yingsheng Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453000, P. R. China
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30
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Lu X, Kawazu R, Song J, Yoshigoe Y, Torigoe T, Kuninobu Y. Regioselective C-H Trifluoromethylation of Aromatic Compounds by Inclusion in Cyclodextrins. Org Lett 2021; 23:4327-4331. [PMID: 33989009 DOI: 10.1021/acs.orglett.1c01259] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A regioselective radical C-H trifluoromethylation of aromatic compounds was developed using cyclodextrins (CDs) as additives. The C-H trifluoromethylation proceeded with high regioselectivity to afford the product in good yield, even on the gram scale. In the presence of CDs, some substrates underwent a single trifluoromethylation selectively, whereas mixtures of single- and double-trifluoromethylated products were formed in the absence of the CD. 1H NMR experiments indicated that the regioselectivity was controlled by the inclusion of a substrate inside the CD cavity.
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Affiliation(s)
- Xu Lu
- Department of Molecular and Material Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasugakoen, Kasuga-shi, Fukuoka 816-8580, Japan
| | - Ryohei Kawazu
- Department of Molecular and Material Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasugakoen, Kasuga-shi, Fukuoka 816-8580, Japan
| | - Jizhou Song
- Department of Molecular and Material Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasugakoen, Kasuga-shi, Fukuoka 816-8580, Japan
| | - Yusuke Yoshigoe
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasugakoen, Kasuga-shi, Fukuoka 816-8580, Japan
| | - Takeru Torigoe
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasugakoen, Kasuga-shi, Fukuoka 816-8580, Japan.,Department of Molecular and Material Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasugakoen, Kasuga-shi, Fukuoka 816-8580, Japan
| | - Yoichiro Kuninobu
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasugakoen, Kasuga-shi, Fukuoka 816-8580, Japan.,Department of Molecular and Material Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasugakoen, Kasuga-shi, Fukuoka 816-8580, Japan
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31
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Ye F, Ge Y, Spannenberg A, Neumann H, Xu LW, Beller M. 3,3-Difluoroallyl ammonium salts: highly versatile, stable and selective gem-difluoroallylation reagents. Nat Commun 2021; 12:3257. [PMID: 34059673 PMCID: PMC8167079 DOI: 10.1038/s41467-021-23504-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 04/30/2021] [Indexed: 02/04/2023] Open
Abstract
The selective synthesis of fluorinated organic molecules continues to be of major importance for the development of bioactive compounds (agrochemicals and pharmaceuticals) as well as unique materials. Among the established synthetic toolbox for incorporation of fluorine-containing units, efficient and general reagents for introducing -CF2- groups have been largely neglected. Here, we present the synthesis of 3,3-difluoropropen-1-yl ammonium salts (DFPAs) as stable, and scalable gem-difluoromethylation reagents, which allow for the direct reaction with a wide range of fascinating nucleophiles. DFPAs smoothly react with N-, O-, S-, Se-, and C-nucleophiles under mild conditions without necessity of metal catalysts with exclusive regioselectivity. In this way, the presented reagents also permit the straightforward preparation of many analogues of existing pharmaceuticals.
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Affiliation(s)
- Fei Ye
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou, 311121, PR China
- Leibniz-Institute for Catalysis, Albert-Einstein-Str. 29a, Rostock, 18059, Germany
| | - Yao Ge
- Leibniz-Institute for Catalysis, Albert-Einstein-Str. 29a, Rostock, 18059, Germany
| | - Anke Spannenberg
- Leibniz-Institute for Catalysis, Albert-Einstein-Str. 29a, Rostock, 18059, Germany
| | - Helfried Neumann
- Leibniz-Institute for Catalysis, Albert-Einstein-Str. 29a, Rostock, 18059, Germany
| | - Li-Wen Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, and Key Laboratory of Organosilicon Material Technology of Zhejiang Province, Hangzhou Normal University, No. 2318, Yuhangtang Road, Hangzhou, 311121, PR China
| | - Matthias Beller
- Leibniz-Institute for Catalysis, Albert-Einstein-Str. 29a, Rostock, 18059, Germany.
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32
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Gioria E, del Pozo J, Lledós A, Espinet P. Understanding the Use of Phosphine-(EWO) Ligands in Negishi Cross-Coupling: Experimental and Density Functional Theory Mechanistic Study. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Estefanía Gioria
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47071 Valladolid, Spain
| | - Juan del Pozo
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47071 Valladolid, Spain
| | - Agustí Lledós
- Departament de Química, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain
| | - Pablo Espinet
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47071 Valladolid, Spain
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33
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Kuninobu Y, Torigoe T. Regioselective C-H Trifluoromethylation of Heteroaromatic Compounds. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200302] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yoichiro Kuninobu
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasugakoen, Kasuga, Fukuoka 816-8580, Japan
- Department of Molecular and Material Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasugakoen, Kasuga, Fukuoka 816-8580, Japan
| | - Takeru Torigoe
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasugakoen, Kasuga, Fukuoka 816-8580, Japan
- Department of Molecular and Material Sciences, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasugakoen, Kasuga, Fukuoka 816-8580, Japan
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34
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Sun X, Dong X, Liu H, Liu Y. Recent Progress in Palladium‐Catalyzed Radical Reactions. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001315] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Xi Sun
- School of Chemistry Chemical Engineering Shandong University of Technology 266 West Xincun Road Zibo 255049 People's Republic of China
| | - Xu Dong
- School of Chemistry Chemical Engineering Shandong University of Technology 266 West Xincun Road Zibo 255049 People's Republic of China
| | - Hui Liu
- School of Chemistry Chemical Engineering Shandong University of Technology 266 West Xincun Road Zibo 255049 People's Republic of China
| | - Yuying Liu
- School of Chemistry Chemical Engineering Shandong University of Technology 266 West Xincun Road Zibo 255049 People's Republic of China
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35
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Chowdhury A, Chatterjee S, Pongen A, Sarania D, Tripathi NM, Bandyopadhyay A. nSite-Selective, Chemical Modification of Protein at Aromatic Side Chain and Their Emergent Applications. Protein Pept Lett 2021; 28:788-808. [PMID: 33511938 DOI: 10.2174/0929866528666210129152535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/11/2020] [Accepted: 12/20/2020] [Indexed: 11/22/2022]
Abstract
Site-selective chemical modification of protein side chain has probed enormous opportunities in the fundamental understanding of cellular biology and therapeutic applications. Primarily, in the field of biopharmaceutical where formulation of bioconjugates is found to be potential medicine than an individual constituent. In this regard, Lysine and Cysteine are the most widely used endogenous amino acid for these purposes. Recently, the aromatic side chain residues (Trp, Tyr, and His) that are low abundant in protein have gained more attention in therapeutic applications due to their advantages of chemical reactivity and specificity. This review discusses the site-selective bioconjugation methods for aromatic side chains (Trp, Tyr and His) and highlights the developed strategies in the last three years, along with their applications. Also, the review highlights the prevalent methods published earlier. We have examined that metal-catalyzed and photocatalytic reactions are gaining more attention for bioconjugation, though their practical operation is under development. The review has been summarized with the future perspective of protein and peptide conjugations contemplating therapeutic applications and challenges.
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Affiliation(s)
- Arnab Chowdhury
- Biomimetic Peptide Engineering Laboratory, Department of Chemistry, Indian Institute of Technology, Ropar, Birla Farms, Punjab-781039. India
| | - Saurav Chatterjee
- Biomimetic Peptide Engineering Laboratory, Department of Chemistry, Indian Institute of Technology, Ropar, Birla Farms, Punjab-781039. India
| | - Akumlong Pongen
- Biomimetic Peptide Engineering Laboratory, Department of Chemistry, Indian Institute of Technology, Ropar, Birla Farms, Punjab-781039. India
| | - Dhanjit Sarania
- Biomimetic Peptide Engineering Laboratory, Department of Chemistry, Indian Institute of Technology, Ropar, Birla Farms, Punjab-781039. India
| | - Nitesh Mani Tripathi
- Biomimetic Peptide Engineering Laboratory, Department of Chemistry, Indian Institute of Technology, Ropar, Birla Farms, Punjab-781039. India
| | - Anupam Bandyopadhyay
- Biomimetic Peptide Engineering Laboratory, Department of Chemistry, Indian Institute of Technology, Ropar, Birla Farms, Punjab-781039. India
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36
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Peng D, Fan W, Zhao X, Chen W, Wen Y, Zhang L, Li S. Zinc–Brønsted acid mediated practical hydrotrifluoromethylation of alkenes with CF 3Br. Org Chem Front 2021. [DOI: 10.1039/d1qo01073e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Hydrotrifluoromethylation of alkenes was developed through a novel generation of CF3˙ via the combination of Zn and PhCO2H with CF3Br.
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Affiliation(s)
- Deqian Peng
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Wu Fan
- Key Laboratory of Tobacco Flavor Basic Research, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Xueqi Zhao
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Wei Chen
- Department of Colorectal Surgery & Guangdong Provincial Key laboratory of Colorectal and Pelvic Floor Disease & Guangdong Research Institute of Gastroenterology, The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510655, China
| | - Yuan Wen
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Li Zhang
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Suhua Li
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
- Key Lab of Functional Molecular Engineering of Guangdong Province, South China University of Technology, Guangzhou 510641, China
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37
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Jiang G, Yang G, Liu X, Wang S, Ji F. Palladium-catalyzed sequential acylation/annulation of indoles with acyl chlorides using primary amine as the directing group. NEW J CHEM 2021. [DOI: 10.1039/d0nj04406g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
An efficient, palladium(ii)-catalyzed, C(sp2)–H acylation/annulation of indoles with acyl chlorides for the synthesis of substituted indolo[1,2-a]quinazolines is reported.
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Affiliation(s)
- Guangbin Jiang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- People's Republic of China
| | - Guang Yang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- People's Republic of China
| | - Xinqiang Liu
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- People's Republic of China
| | - Shoucai Wang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- People's Republic of China
| | - Fanghua Ji
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- People's Republic of China
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38
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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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39
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Hu JJ, He PY, Li YM. Chemical modifications of tryptophan residues in peptides and proteins. J Pept Sci 2020; 27:e3286. [PMID: 32945039 DOI: 10.1002/psc.3286] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 08/21/2020] [Accepted: 08/24/2020] [Indexed: 12/27/2022]
Abstract
Chemical protein modifications facilitate the investigation of natural posttranslational protein modifications and allow the design of proteins with new functions. Proteins can be modified at a late stage on amino acid side chains by chemical methods. The indole moiety of tryptophan residues is an emerging target of such chemical modification strategies because of its unique reactivity and low abundance. This review provides an overview of the recently developed methods of tryptophan modification at the peptide and protein levels.
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Affiliation(s)
- Jin-Jian Hu
- Key Lab of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Pei-Yang He
- Key Lab of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yan-Mei Li
- Key Lab of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China.,Beijing Institute for Brain Disorders, Beijing, 100069, China
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40
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Natte K, Narani A, Goyal V, Sarki N, Jagadeesh RV. Synthesis of Functional Chemicals from Lignin‐derived Monomers by Selective Organic Transformations. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000634] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Kishore Natte
- Synthetic Chemistry and Petrochemicals Area Chemical and Material Sciences Division CSIR – Indian Institute of Petroleum Haridwar road, Mohkampur Dehradun 248005 India
| | - Anand Narani
- BioFuels Division CSIR – Indian Institute of Petroleum Haridwar road, Mohkampur Dehradun 248005 India
| | - Vishakha Goyal
- Synthetic Chemistry and Petrochemicals Area Chemical and Material Sciences Division CSIR – Indian Institute of Petroleum Haridwar road, Mohkampur Dehradun 248005 India
| | - Naina Sarki
- Synthetic Chemistry and Petrochemicals Area Chemical and Material Sciences Division CSIR – Indian Institute of Petroleum Haridwar road, Mohkampur Dehradun 248005 India
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41
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Luo Z, Yang X, Tsui GC. Perfluoroalkylation of Thiosulfonates: Synthesis of Perfluoroalkyl Sulfides. Org Lett 2020; 22:6155-6159. [PMID: 32648444 DOI: 10.1021/acs.orglett.0c02235] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A practical synthesis of perfluoroalkyl sulfides is described. The method employs stable and readily accessible thiosulfonates as new electrophiles with commercial nucleophilic perfluoroalkylating reagents. The mild reaction conditions allow access to a wide variety of both aryl- and alkyl-substituted perfluoroalkyl sulfides amenable to pharmaceutical development. Furthermore, the reaction operation is straightforward, odorless, does not produce toxic wastes, and, therefore should appeal to practitioners in industrial-scale productions.
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Affiliation(s)
- Ziwei Luo
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR
| | - Xinkan Yang
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR
| | - Gavin Chit Tsui
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR
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42
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Hys VY, Shevchuk OI, Vashchenko BV, Karpenko OV, Gorlova AO, Grygorenko OO. Functionalization of 2-Trifluoromethyl-1H
-pyrrole: A Convenient Entry into Advanced Fluorinated Building Blocks Including all Isomeric 2-(Trifluoromethyl)prolines. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000519] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Vasyl Yu. Hys
- Enamine Ltd.; Chervonotkatska Street 78 02094 Kyiv Ukraine
- Taras Shevchenko National University of Kyiv; Volodymyrska Street 60 01601 Kyiv Ukraine
| | | | - Bohdan V. Vashchenko
- Enamine Ltd.; Chervonotkatska Street 78 02094 Kyiv Ukraine
- Taras Shevchenko National University of Kyiv; Volodymyrska Street 60 01601 Kyiv Ukraine
| | | | - Alina O. Gorlova
- Enamine Ltd.; Chervonotkatska Street 78 02094 Kyiv Ukraine
- Institute of Organic Chemistry; National Academy of Sciences of Ukraine; Murmanska Street 5 02094 Kyiv Ukraine
| | - Oleksandr O. Grygorenko
- Enamine Ltd.; Chervonotkatska Street 78 02094 Kyiv Ukraine
- Taras Shevchenko National University of Kyiv; Volodymyrska Street 60 01601 Kyiv Ukraine
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43
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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: 8] [Impact Index Per Article: 2.0] [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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44
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Shaughnessy KH. Monodentate Trialkylphosphines: Privileged Ligands in Metal-catalyzed Crosscoupling Reactions. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824666200211114540] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Phosphines are widely used ligands in transition metal-catalyzed reactions.
Arylphosphines, such as triphenylphosphine, were among the first phosphines to show
broad utility in catalysis. Beginning in the late 1990s, sterically demanding and electronrich
trialkylphosphines began to receive attention as supporting ligands. These ligands
were found to be particularly effective at promoting oxidative addition in cross-coupling
of aryl halides. With electron-rich, sterically demanding ligands, such as tri-tertbutylphosphine,
coupling of aryl bromides could be achieved at room temperature. More
importantly, the less reactive, but more broadly available, aryl chlorides became accessible
substrates. Tri-tert-butylphosphine has become a privileged ligand that has found application
in a wide range of late transition-metal catalyzed coupling reactions. This success
has led to the use of numerous monodentate trialkylphosphines in cross-coupling reactions. This review
will discuss the general properties and features of monodentate trialkylphosphines and their application in
cross-coupling reactions of C–X and C–H bonds.
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Affiliation(s)
- Kevin H. Shaughnessy
- Department of Chemistry & Biochemistry, The University of Alabama, Box 870336, Tuscaloosa, AL, 35487-0336, United States
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45
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Chen J, Li M, Zhang J, Sun W, Jiang Y. Copper-Catalyzed Functionalization of Aza-Aromatic Rings with Fluoroalcohols via Direct C(sp2)–H/C(sp3)–H Coupling Reactions. Org Lett 2020; 22:3033-3038. [DOI: 10.1021/acs.orglett.0c00797] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jie Chen
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Meng Li
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Jinli Zhang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Wangbin Sun
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yaojia Jiang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
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46
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Pan Q, Wang J, Wang Q, Li H, Wu Y. Synthesis of 2‐Trifluoromethyl Quinolines from α,β‐Unsaturated Trifluoromethyl Ketones: Regiochemistry Reversal Comparing to the Standard Skraup‐Doebner‐Von Miller Synthesis. ChemistrySelect 2020. [DOI: 10.1002/slct.202000895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Qian‐Wen Pan
- School of Marine Science and Technology Harbin Institute of Technology No. 2, Wenhuaxi Road Weihai 264209 P. R. China
| | - Jun‐Hu Wang
- School of Marine Science and Technology Harbin Institute of Technology No. 2, Wenhuaxi Road Weihai 264209 P. R. China
| | - Qi Wang
- School of Marine Science and Technology Harbin Institute of Technology No. 2, Wenhuaxi Road Weihai 264209 P. R. China
| | - Hui‐Jing Li
- School of Marine Science and Technology Harbin Institute of Technology No. 2, Wenhuaxi Road Weihai 264209 P. R. China
| | - Yan‐Chao Wu
- School of Marine Science and Technology Harbin Institute of Technology No. 2, Wenhuaxi Road Weihai 264209 P. R. China
- Weihai ChuanghuiEnvironmental Protection Technology Co., Ltd No. 3–2, Shichangdadao Road Weihai 264200 P. R. China
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47
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Ghosh I, Khamrai J, Savateev A, Shlapakov N, Antonietti M, König B. Organic semiconductor photocatalyst can bifunctionalize arenes and heteroarenes. Science 2020; 365:360-366. [PMID: 31346061 DOI: 10.1126/science.aaw3254] [Citation(s) in RCA: 271] [Impact Index Per Article: 67.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Accepted: 06/03/2019] [Indexed: 12/20/2022]
Abstract
Photoexcited electron-hole pairs on a semiconductor surface can engage in redox reactions with two different substrates. Similar to conventional electrosynthesis, the primary redox intermediates afford only separate oxidized and reduced products or, more rarely, combine to one addition product. Here, we report that a stable organic semiconductor material, mesoporous graphitic carbon nitride (mpg-CN), can act as a visible-light photoredox catalyst to orchestrate oxidative and reductive interfacial electron transfers to two different substrates in a two- or three-component system for direct twofold carbon-hydrogen functionalization of arenes and heteroarenes. The mpg-CN catalyst tolerates reactive radicals and strong nucleophiles, is straightforwardly recoverable by simple centrifugation of reaction mixtures, and is reusable for at least four catalytic transformations with conserved activity.
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Affiliation(s)
- Indrajit Ghosh
- Fakultät für Chemie und Pharmazie, Universität Regensburg, 93040 Regensburg, Germany.,Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Research Campus Golm, 14424 Potsdam, Germany
| | - Jagadish Khamrai
- Fakultät für Chemie und Pharmazie, Universität Regensburg, 93040 Regensburg, Germany
| | - Aleksandr Savateev
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Research Campus Golm, 14424 Potsdam, Germany
| | - Nikita Shlapakov
- Fakultät für Chemie und Pharmazie, Universität Regensburg, 93040 Regensburg, Germany
| | - Markus Antonietti
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Research Campus Golm, 14424 Potsdam, Germany.
| | - Burkhard König
- Fakultät für Chemie und Pharmazie, Universität Regensburg, 93040 Regensburg, Germany.
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48
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Qiu Y, Scheremetjew A, Finger LH, Ackermann L. Electrophotocatalytic Undirected C-H Trifluoromethylations of (Het)Arenes. Chemistry 2020; 26:3241-3246. [PMID: 31875327 PMCID: PMC7155051 DOI: 10.1002/chem.201905774] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Indexed: 12/31/2022]
Abstract
Electrophotochemistry has enabled arene C-H trifluoromethylation with the Langlois reagent CF3 SO2 Na under mild reaction conditions. The merger of electrosynthesis and photoredox catalysis provided a chemical oxidant-free approach for the generation of the CF3 radical. The electrophotochemistry was carried out in an operationally simple manner, setting the stage for challenging C-H trifluoromethylations of unactivated arenes and heteroarenes. The robust nature of the electrophotochemical manifold was reflected by a wide scope, including electron-rich and electron-deficient benzenes, as well as naturally occurring heteroarenes. Electrophotochemical C-H trifluoromethylation was further achieved in flow with a modular electro-flow-cell equipped with an in-operando monitoring unit for on-line flow-NMR spectroscopy, providing support for the single electron transfer processes.
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Affiliation(s)
- Youai Qiu
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstrasse 237077GöttingenGermany
| | - Alexej Scheremetjew
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstrasse 237077GöttingenGermany
| | - Lars H. Finger
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstrasse 237077GöttingenGermany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstrasse 237077GöttingenGermany
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49
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Li Q, Fan W, Peng D, Meng B, Wang S, Huang R, Liu S, Li S. Cobalt–Tertiary-Amine-Mediated Hydroxytrifluoromethylation of Alkenes with CF3Br and Atmospheric Oxygen. ACS Catal 2020. [DOI: 10.1021/acscatal.0c00498] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qiankun Li
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
- Department of Applied Chemistry, Anhui Agricultural University, Hefei, Anhui 230036, China
| | - Wu Fan
- Key Laboratory of Tobacco Flavor Basic Research, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Deqian Peng
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Bingyin Meng
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Shaohan Wang
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Rui Huang
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Shihao Liu
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Suhua Li
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
- Key Lab of Functional Molecular Engineering of Guangdong Province, South China University of Technology, Guangzhou 510641, China
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50
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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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