1
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Thomas RM, Obbard DB, Lipshutz BH. Challenging cross couplings, in water, aided by in situ iodination of (hetero)aromatic bromides. Chem Sci 2023; 14:13503-13507. [PMID: 38033910 PMCID: PMC10686040 DOI: 10.1039/d3sc04199a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 11/06/2023] [Indexed: 12/02/2023] Open
Abstract
Palladium-catalyzed reactions that involve functionalized substrates are oftentimes problematic. Those involving aryl or heteroaryl bromides that are either resistant to, or inefficient in such couplings present challenges that are difficult to overcome and may require development of an entirely new route, or worse, no opportunity to install the desired group using a standard coupling strategy. In this report, we describe a solution that allows for the in situ conversion of such bromo educts to transient iodide derivatives that can be made and used under environmentally responsible conditions, for subsequent reactions to highly functionalized, complex targets.
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Affiliation(s)
- Rohan M Thomas
- Department of Chemistry and Biochemistry, University of California Santa Barbara CA 93106 USA
| | - David B Obbard
- Department of Chemistry and Biochemistry, University of California Santa Barbara CA 93106 USA
| | - Bruce H Lipshutz
- Department of Chemistry and Biochemistry, University of California Santa Barbara CA 93106 USA
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2
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Ni S, Yan J, Tewari S, Reijerse EJ, Ritter T, Cornella J. Nickel Meets Aryl Thianthrenium Salts: Ni(I)-Catalyzed Halogenation of Arenes. J Am Chem Soc 2023; 145:9988-9993. [PMID: 37126771 PMCID: PMC10176483 DOI: 10.1021/jacs.3c02611] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Herein, a regioselective, late-stage two-step arene halogenation method is reported. We propose how unusual Ni(I)/(III) catalysis is enabled by a combination of aryl thianthrenium and Ni redox properties that is hitherto unachieved with other (pseudo)halides. The catalyst is accessed in situ from inexpensive NiCl2·6(H2O) and zinc without the need of supporting ligands.
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Affiliation(s)
- Shengyang Ni
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr 45470, Germany
| | - Jiyao Yan
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr 45470, Germany
| | - Srija Tewari
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr 45470, Germany
| | - Edward J Reijerse
- Max Planck Institut for Chemical Energy Conversion, Stiftstrasse 34-36, Mülheim an der Ruhr 45470, Germany
| | - Tobias Ritter
- 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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3
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Liang JX, Yang PF, Shu W. Synthesis of (Hetero)aryl/Alkenyl Iodides via Ni-Catalyzed Finkelstein Reaction from Bromides or Chlorides. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Jian-Xing Liang
- Shenzhen Grubbs Institute, Department of Chemistry, and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, Guangdong, P. R. China
| | - Peng-Fei Yang
- Shenzhen Grubbs Institute, Department of Chemistry, and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, Guangdong, P. R. China
| | - Wei Shu
- Shenzhen Grubbs Institute, Department of Chemistry, and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, Guangdong, P. R. China
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4
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Feng Y, Luo H, Zheng W, Matsunaga S, Lin L. Light-Promoted Nickel-Catalyzed Aromatic Halogen Exchange. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03354] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yunhui Feng
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, Liaoning116024, China
| | - Hang Luo
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, Liaoning116024, China
| | - Wanyao Zheng
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, Liaoning116024, China
| | - Shigeki Matsunaga
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo060-0812, Japan
- Global Station for Biosurfaces and Drug Discovery, Hokkaido University, Sapporo060-0812, Japan
| | - Luqing Lin
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, Liaoning116024, China
- Global Station for Biosurfaces and Drug Discovery, Hokkaido University, Sapporo060-0812, Japan
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5
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Copper-Catalyzed Reactions of Aryl Halides with N-nucleophiles and Their Possible Application for Degradation of Halogenated Aromatic Contaminants. Catalysts 2022. [DOI: 10.3390/catal12080911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This review summarizes recent applications of copper or copper-based compounds as a nonprecious metal catalyst in N-nucleophiles-based dehalogenation (DH) reactions of halogenated aromatic compounds (Ar-Xs). Cu-catalyzed DH enables the production of corresponding nonhalogenated aromatic products (Ar-Nu), which are much more biodegradable and can be mineralized during aerobic wastewater treatment or which are principally further applicable. Based on available knowledge, the developed Cu-based DH methods enable the utilization of amines for effective cleavage of aryl-halogen bonds in organic solvents or even in an aqueous solution.
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6
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Princiotto S, Jayasinghe L, Dallavalle S. Recent advances in the synthesis of naturally occurring tetronic acids. Bioorg Chem 2021; 119:105552. [PMID: 34929518 DOI: 10.1016/j.bioorg.2021.105552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 12/08/2021] [Indexed: 11/18/2022]
Abstract
During the last decades the interest towards natural products containing the tetronic acid moiety augmented significantly, due to their challenging structures and to the wide range of biological activities they display. This increasing enthusiasm has led to noteworthy advances in the development of innovative methodologies for the construction of the butenolide nucleus. This review provides an overview of the progress in the synthesis of tetronic acid as a structural key motif of natural compounds, covering the last 15 years. Herein, the most representative synthetic pathways towards structurally diverse natural tetronic acids are grouped according to the strategy followed. The first part describes the functionalization of a preformed tetronic acid core by intermolecular reactions (cross-coupling reactions, nucleophilic substitution, multicomponent reactions) whereas the second part deals with intramolecular approaches (Dieckmann, cycloaddition or ring expansion reactions) to construct the heterocyclic core. This rational subcategorization allowed us to make some considerations about the best approaches for the synthesis of specific substrates, including modern intriguing methodologies such as microwave irradiation, solid phase anchoring, bio-transformations and continuous flow processes.
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Affiliation(s)
- Salvatore Princiotto
- Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, via Celoria 2, 20133 Milan, Italy
| | | | - Sabrina Dallavalle
- Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, via Celoria 2, 20133 Milan, Italy; National Institute of Fundamental Studies, Kandy 20000, Sri Lanka.
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7
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He X, Jiang Y, Zhou H, Zhu Q. Direct Phase‐Transition Catalysed Monohalogenation of 8‐Amidoquinolines at C5 Position in Water. ChemistrySelect 2021. [DOI: 10.1002/slct.202100616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xin He
- School of Chemical and Pharmaceutical Engineering Changzhou Institute of Engineering Technology No. 33, Middle Gehu Road Changzhou 213164 P. R. China
| | - Yujia Jiang
- School of Chemical and Pharmaceutical Engineering Changzhou Institute of Engineering Technology No. 33, Middle Gehu Road Changzhou 213164 P. R. China
| | - Haiping Zhou
- School of Chemical and Pharmaceutical Engineering Changzhou Institute of Engineering Technology No. 33, Middle Gehu Road Changzhou 213164 P. R. China
| | - Qihua Zhu
- Jiangsu Key Laboratory of Drug Design and Optimization Department of Medicinal Chemistry China Pharmaceutical University 639 Longmian Avenue Nanjing 211198 China
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8
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The Influence of Copper on Halogenation/Dehalogenation Reactions of Aromatic Compounds and Its Role in the Destruction of Polyhalogenated Aromatic Contaminants. Catalysts 2021. [DOI: 10.3390/catal11030378] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The effect of copper and its compounds on halogenation and dehalogenation of aromatic compounds will be discussed in the proposed article. Cu oxidized to appropriate halides is an effective halogenation catalyst not only for the synthesis of halogenated benzenes or their derivatives as desired organic fine chemicals, but is also an effective catalyst for the undesirable formation of thermodynamically stable and very toxic polychlorinated and polybrominated aromatic compounds such as polychlorinated biphenyls, dibenzo-p-dioxins and dibenzofurans accompanied incineration of waste contaminated with halogenated compounds or even inorganic halides. With appropriate change in reaction conditions, copper and its alloys or oxides are also able to effectively catalyze dehalogenation reactions, as will be presented in this review.
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9
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Doraghi F, Kianmehr E, Foroumadi A. Metal-free regioselective C5-cyanoalkylation of the 8-aminoquinolineamides/sulfonamides via oxidative cross-dehydrogenative coupling with alkylnitriles. Org Chem Front 2021. [DOI: 10.1039/d1qo00570g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A practical, versatile and Metal-free regioselective C5-cyanoalkylation of the 8-aminoquinolineamides/sulfonamides with acetonitrile has been described.
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Affiliation(s)
- Fatemeh Doraghi
- School of Chemistry, College of Science, University of Tehran, Tehran 1417614411, Iran
| | - Ebrahim Kianmehr
- School of Chemistry, College of Science, University of Tehran, Tehran 1417614411, Iran
| | - Alireza Foroumadi
- Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, Iran
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10
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Antoniv M, Chang S, Al‐Jabri N, Zhu SS. Surfactant‐free synthesis of poly (styrene‐
co
‐acrylamide) monodisperse nanoparticles using hybrid flow‐to‐batch chemistry. J Appl Polym Sci 2020. [DOI: 10.1002/app.49905] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Marta Antoniv
- Aramco Services Company: Aramco Research Center–Boston Cambridge Massachusetts USA
| | - Sehoon Chang
- Aramco Services Company: Aramco Research Center–Boston Cambridge Massachusetts USA
| | | | - S. Sherry Zhu
- Aramco Services Company: Aramco Research Center–Boston Cambridge Massachusetts USA
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11
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Colella M, Tota A, Takahashi Y, Higuma R, Ishikawa S, Degennaro L, Luisi R, Nagaki A. Fluoro‐Substituted Methyllithium Chemistry: External Quenching Method Using Flow Microreactors. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003831] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Marco Colella
- Department of Pharmacy—Drug SciencesFlow Chemistry and Microreactor Technology FLAME-LabUniversity of Bari “A. Moro” Via E. Orabona 4 70125 Bari Italy
| | - Arianna Tota
- Department of Pharmacy—Drug SciencesFlow Chemistry and Microreactor Technology FLAME-LabUniversity of Bari “A. Moro” Via E. Orabona 4 70125 Bari Italy
| | - Yusuke Takahashi
- Department of Synthetic and Biological ChemistryGraduate School of EngineeringKyoto University Nishikyo-ku Kyoto 615-8510 Japan
| | - Ryosuke Higuma
- Department of Synthetic and Biological ChemistryGraduate School of EngineeringKyoto University Nishikyo-ku Kyoto 615-8510 Japan
| | - Susumu Ishikawa
- Department of Synthetic and Biological ChemistryGraduate School of EngineeringKyoto University Nishikyo-ku Kyoto 615-8510 Japan
| | - Leonardo Degennaro
- Department of Pharmacy—Drug SciencesFlow Chemistry and Microreactor Technology FLAME-LabUniversity of Bari “A. Moro” Via E. Orabona 4 70125 Bari Italy
| | - Renzo Luisi
- Department of Pharmacy—Drug SciencesFlow Chemistry and Microreactor Technology FLAME-LabUniversity of Bari “A. Moro” Via E. Orabona 4 70125 Bari Italy
| | - Aiichiro Nagaki
- Department of Synthetic and Biological ChemistryGraduate School of EngineeringKyoto University Nishikyo-ku Kyoto 615-8510 Japan
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12
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Colella M, Tota A, Takahashi Y, Higuma R, Ishikawa S, Degennaro L, Luisi R, Nagaki A. Fluoro‐Substituted Methyllithium Chemistry: External Quenching Method Using Flow Microreactors. Angew Chem Int Ed Engl 2020; 59:10924-10928. [DOI: 10.1002/anie.202003831] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 03/30/2020] [Indexed: 12/11/2022]
Affiliation(s)
- Marco Colella
- Department of Pharmacy—Drug SciencesFlow Chemistry and Microreactor Technology FLAME-LabUniversity of Bari “A. Moro” Via E. Orabona 4 70125 Bari Italy
| | - Arianna Tota
- Department of Pharmacy—Drug SciencesFlow Chemistry and Microreactor Technology FLAME-LabUniversity of Bari “A. Moro” Via E. Orabona 4 70125 Bari Italy
| | - Yusuke Takahashi
- Department of Synthetic and Biological ChemistryGraduate School of EngineeringKyoto University Nishikyo-ku Kyoto 615-8510 Japan
| | - Ryosuke Higuma
- Department of Synthetic and Biological ChemistryGraduate School of EngineeringKyoto University Nishikyo-ku Kyoto 615-8510 Japan
| | - Susumu Ishikawa
- Department of Synthetic and Biological ChemistryGraduate School of EngineeringKyoto University Nishikyo-ku Kyoto 615-8510 Japan
| | - Leonardo Degennaro
- Department of Pharmacy—Drug SciencesFlow Chemistry and Microreactor Technology FLAME-LabUniversity of Bari “A. Moro” Via E. Orabona 4 70125 Bari Italy
| | - Renzo Luisi
- Department of Pharmacy—Drug SciencesFlow Chemistry and Microreactor Technology FLAME-LabUniversity of Bari “A. Moro” Via E. Orabona 4 70125 Bari Italy
| | - Aiichiro Nagaki
- Department of Synthetic and Biological ChemistryGraduate School of EngineeringKyoto University Nishikyo-ku Kyoto 615-8510 Japan
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13
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Luo Z, Wang X, Fan X, Kang C, Su Y, Zhang Y, Chen S. A facile and practical Amination of 4-Fluoronitrobenzene in continuous flow. J Flow Chem 2020. [DOI: 10.1007/s41981-019-00075-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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14
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Johansen MB, Lindhardt AT. Copper-catalyzed and additive free decarboxylative trifluoromethylation of aromatic and heteroaromatic iodides. Org Biomol Chem 2020; 18:1417-1425. [PMID: 32016267 DOI: 10.1039/c9ob02635e] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A copper-catalyzed decarboxylative trifluoromethylation of (hetero)aromatic iodides has been developed. Importantly, this new copper-catalyzed reaction operates in the absence of any ligands and metal additives. The protocol shows good functional group tolerance and is compatible with heteroaromatic systems. The reaction proved scalable to a 15 mmol scale with increased yield. Finally, late-stage installation of the trifluoromethyl functionality afforded the N-trifluoroacetamide variant of the antidepressant agent, Prozac, demonstrating the applicability of the developed method.
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Affiliation(s)
- Martin B Johansen
- Department of Engineering, Carbon Dioxide Activation Center (CADIAC), Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark.
| | - Anders T Lindhardt
- Department of Engineering, Carbon Dioxide Activation Center (CADIAC), Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Gustav Wieds Vej 14, DK-8000 Aarhus C, Denmark.
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15
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Synthesis of Biaryls Having a Piperidylmethyl Group Based on Space Integration of Lithiation, Borylation, and Suzuki-Miyaura Coupling. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901729] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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16
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Ichinari D, Ashikari Y, Mandai K, Aizawa Y, Yoshida JI, Nagaki A. A Novel Approach to Functionalization of Aryl Azides through the Generation and Reaction of Organolithium Species Bearing Masked Azides in Flow Microreactors. Angew Chem Int Ed Engl 2020; 59:1567-1571. [PMID: 31733010 DOI: 10.1002/anie.201912419] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 11/13/2019] [Indexed: 01/04/2023]
Abstract
A novel straightforward method for aryl azides having functional groups based on generation and reactions of aryllithiums bearing a triazene group from polybromoarenes using flow microreactor systems was achieved. The present approach will serve as a powerful method in organolithium chemistry and open a new possibility in the synthesis of polyfunctional organic azides.
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Affiliation(s)
- Daisuke Ichinari
- Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Yosuke Ashikari
- Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Kyoko Mandai
- Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Yoko Aizawa
- Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Jun-Ichi Yoshida
- National Institute of Technology, Suzuka College, Shiroko-cho, Suzuka, Mie, 510-0294, Japan
| | - Aiichiro Nagaki
- Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
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17
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Shimoyama D, Sekiya R, Haino T. Upper-rim functionalization and supramolecular polymerization of a feet-to-feet-connected biscavitand. Chem Commun (Camb) 2020; 56:3733-3736. [DOI: 10.1039/d0cc00933d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
An octaiodobiscavitand was synthesized via an aromatic Finkelstein iodination reaction in good yield. An octa-functionalized biscavitand self-assembled to form a supramolecular polymer in the solid state.
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Affiliation(s)
- Daisuke Shimoyama
- Department of Chemistry
- Graduate School of Science
- Hiroshima University
- Higashi-Hiroshima
- Japan
| | - Ryo Sekiya
- Department of Chemistry
- Graduate School of Science
- Hiroshima University
- Higashi-Hiroshima
- Japan
| | - Takeharu Haino
- Department of Chemistry
- Graduate School of Science
- Hiroshima University
- Higashi-Hiroshima
- Japan
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18
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Zhang J, Wang E, Zhou Y, Zhang L, Chen M, Lin X. A metal-free synthesis of 1,1-diphenylvinylsulfides with thiols via thioetherification under continuous-flow conditions. Org Chem Front 2020. [DOI: 10.1039/d0qo00432d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A continuous-flow chemistry facilitated protocol that allows efficient access to a novel aggregation-induced emission (AIE) luminogen 1,1-diphenylvinylsulfides utilizing thiols under metal-free and mild conditions.
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Affiliation(s)
- Jiawei Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education and Yunnan Province
- School of Chemical Science and Technology
- Yunnan University
- Kunming
| | - Erfei Wang
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Yang Zhou
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Lu Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education and Yunnan Province
- School of Chemical Science and Technology
- Yunnan University
- Kunming
| | - Mao Chen
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Xinrong Lin
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education and Yunnan Province
- School of Chemical Science and Technology
- Yunnan University
- Kunming
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19
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Ichinari D, Ashikari Y, Mandai K, Aizawa Y, Yoshida J, Nagaki A. A Novel Approach to Functionalization of Aryl Azides through the Generation and Reaction of Organolithium Species Bearing Masked Azides in Flow Microreactors. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201912419] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Daisuke Ichinari
- Department of Synthetic and Biological Chemistry Graduate School of Engineering Kyoto University Nishikyo-ku Kyoto 615-8510 Japan
| | - Yosuke Ashikari
- Department of Synthetic and Biological Chemistry Graduate School of Engineering Kyoto University Nishikyo-ku Kyoto 615-8510 Japan
| | - Kyoko Mandai
- Department of Synthetic and Biological Chemistry Graduate School of Engineering Kyoto University Nishikyo-ku Kyoto 615-8510 Japan
| | - Yoko Aizawa
- Department of Synthetic and Biological Chemistry Graduate School of Engineering Kyoto University Nishikyo-ku Kyoto 615-8510 Japan
| | - Jun‐ichi Yoshida
- National Institute of Technology Suzuka College Shiroko-cho, Suzuka Mie 510-0294 Japan
| | - Aiichiro Nagaki
- Department of Synthetic and Biological Chemistry Graduate School of Engineering Kyoto University Nishikyo-ku Kyoto 615-8510 Japan
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20
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Ashikari Y, Saito K, Nokami T, Yoshida JI, Nagaki A. Oxo-Thiolation of Cationically Polymerizable Alkenes Using Flow Microreactors. Chemistry 2019; 25:15239-15243. [PMID: 31414708 DOI: 10.1002/chem.201903426] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 08/14/2019] [Indexed: 01/11/2023]
Abstract
The present study describes the cationic oxo-thiolation of polymerizable alkenes by using highly reactive cationic species generated by anodic oxidation. These highly reactive cations were able to activate alkenes before their polymerization. Fast mixing in flow microreactors effectively controlled chemoselectivity, enabling higher reaction temperatures.
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Affiliation(s)
- Yosuke Ashikari
- Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Kodai Saito
- Department of Chemistry, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Toshiki Nokami
- Department of Chemistry and Biotechnology and Center for Research on Green Sustainable Chemistry, Graduate School of Engineering, Tottori University, 4-101 Koyama-minami, Tottori, 680-8552, Japan
| | - Jun-Ichi Yoshida
- National Institute of Technology, Suzuka College, Shiroko-cho, Suzuka, Mie, 510-0294, Japan
| | - Aiichiro Nagaki
- Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
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21
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Nagaki A, Yamashita H, Tsuchihashi Y, Hirose K, Takumi M, Yoshida JI. Generation and Reaction of Functional Alkyllithiums by Using Microreactors and Their Application to Heterotelechelic Polymer Synthesis. Chemistry 2019; 25:13719-13727. [PMID: 31400025 DOI: 10.1002/chem.201902867] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 08/04/2019] [Indexed: 12/29/2022]
Abstract
Flow microreactors enabled the successful generation of various functional alkyllithiums containing electrophilic functional groups, as well as the use of these alkyllithiums in subsequent reactions. The high reactivity of these series of reactions could be achieved by the extremely accurate and selective control of residence time. Moreover, integrated flow microreactor systems could be used to successfully synthesize heterotelechelic polymers with two functionalities, one at each end, via a process involving controlled anionic polymerization initiated by functional alkyllithium compounds, followed by trapping reactions with difunctional electrophiles.
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Affiliation(s)
- Aiichiro Nagaki
- Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Hiroki Yamashita
- Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Yuta Tsuchihashi
- Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Katsuyuki Hirose
- Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Masahiro Takumi
- Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Jun-Ichi Yoshida
- National Institute of Technology, Suzuka College, Shiroko-cho, Suzuka, Mie, 510-0294, Japan
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22
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Wang E, Chen M. Catalyst shuttling enabled by a thermoresponsive polymeric ligand: facilitating efficient cross-couplings with continuously recyclable ppm levels of palladium. Chem Sci 2019; 10:8331-8337. [PMID: 31803410 PMCID: PMC6844270 DOI: 10.1039/c9sc02171j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Accepted: 07/22/2019] [Indexed: 01/12/2023] Open
Abstract
A polymeric monophosphine ligand WePhos has been synthesized and complexed with palladium(ii) acetate [Pd(OAc)2] to generate a thermoresponsive pre-catalyst that can shuttle between water and organic phases, with the change being regulated by temperature. The structure of the polymeric ligand was confirmed with matrix-assisted laser desorption/ionization-time-of-flight (MALDI-TOF) mass spectrometry and size-exclusion chromatography (SEC) analysis, as well as nuclear magnetic resonance (NMR) measurements. This polymeric metal complex enables highly efficient Pd-catalyzed cross-couplings and tandem reactions using 50 to 500 ppm palladium, and this can facilitate reactions that are tolerant to a broad spectrum of (hetero)aryl substrates and functional groups, as demonstrated with 73 examples with up to 99% isolated yields. Notably, 97% Pd remained in the aqueous phase after 10 runs of catalyst recycling experiments, as determined via inductively coupled plasma-atomic emission spectrometry (ICP-AES) measurements, indicating highly efficient catalyst transfer. Furthermore, a continuous catalyst recycling approach has been successfully developed based on flow chemistry in combination with the catalyst shuttling behavior, allowing Suzuki-Miyaura couplings to be conducted at gram-scales with as little as 10 ppm Pd loading. Given the significance of transition-metal catalyzed cross-coupling and increasing interest in sustainable chemistry, this work is an important step towards the development of a responsive catalyst, in addition to having high activity, by tuning the structures of the ligands using polymer science.
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Affiliation(s)
- Erfei Wang
- State Key Laboratory of Molecular Engineering of Polymers , Department of Macromolecular Science , Fudan University , Shanghai 200433 , China . ; http://chenmaofudan.wixsite.com/polymao
| | - Mao Chen
- State Key Laboratory of Molecular Engineering of Polymers , Department of Macromolecular Science , Fudan University , Shanghai 200433 , China . ; http://chenmaofudan.wixsite.com/polymao
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23
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Nakahara Y, Furusawa M, Endo Y, Shimazaki T, Ohtsuka K, Takahashi Y, Jiang Y, Nagaki A. Practical Continuous‐Flow Controlled/Living Anionic Polymerization. Chem Eng Technol 2019. [DOI: 10.1002/ceat.201900160] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yuichi Nakahara
- Kyoto University Micro Chemical Production Study Consortium in Kyoto University Nishikyo-ku 615-8510 Kyoto Japan
- Ajinomoto Co., Inc. New Frontiers Research Group, Frontier Research Labs., Institute for Innovation 1-1 Suzuki-cho, Kawasaki-ku 210-8681 Kanagawa Japan
| | - Mai Furusawa
- Kyoto University Micro Chemical Production Study Consortium in Kyoto University Nishikyo-ku 615-8510 Kyoto Japan
- TOHO Chemical Industry Co., Ltd. Oppama Research Laboratory 5-2931, Urago-cho, Yokosuka-shi 237-0062 Kanagawa Japan
| | - Yuta Endo
- Kyoto University Micro Chemical Production Study Consortium in Kyoto University Nishikyo-ku 615-8510 Kyoto Japan
- Ajinomoto Co., Inc. Isolation And Purification Group, Process Development Section, Process Development Labs, Research Institute for Bioscience Products and Fine Chemicals 1-1 Suzuki-cho, Kawasakiku 210-8681 Kanagawa Japan
| | - Toshiya Shimazaki
- Kyoto University Micro Chemical Production Study Consortium in Kyoto University Nishikyo-ku 615-8510 Kyoto Japan
- Japan, Tacmina Co. 2-2-14 Awajimachi, Chuo-ku 541-0047 Osaka Japan
| | - Keita Ohtsuka
- Kyoto University Micro Chemical Production Study Consortium in Kyoto University Nishikyo-ku 615-8510 Kyoto Japan
- Sankoh Seiki Kougyou Co., Ltd. 2-7-2, Keihinjima, Ota-ku 143-0003 Tokyo Japan
| | - Yusuke Takahashi
- Kyoto University Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering Nishikyo-ku 615-8510 Kyoto Japan
| | - Yiyuan Jiang
- Kyoto University Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering Nishikyo-ku 615-8510 Kyoto Japan
| | - Aiichiro Nagaki
- Kyoto University Micro Chemical Production Study Consortium in Kyoto University Nishikyo-ku 615-8510 Kyoto Japan
- Kyoto University Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering Nishikyo-ku 615-8510 Kyoto Japan
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24
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Nagaki A, Jiang Y, Yamashita H, Takabayashi N, Takahashi Y, Yoshida JI. Monolithiation of 5,5′‐Dibromo‐2,2′‐bithiophene Using Flow Microreactors: Mechanistic Implications and Synthetic Applications. Chem Eng Technol 2019. [DOI: 10.1002/ceat.201900057] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Aiichiro Nagaki
- Kyoto University Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering Nishikyo-ku 615-8510 Kyoto Japan
| | - Yiyuan Jiang
- Kyoto University Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering Nishikyo-ku 615-8510 Kyoto Japan
| | - Hiroki Yamashita
- Kyoto University Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering Nishikyo-ku 615-8510 Kyoto Japan
| | - Naoshi Takabayashi
- Kyoto University Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering Nishikyo-ku 615-8510 Kyoto Japan
| | - Yusuke Takahashi
- Kyoto University Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering Nishikyo-ku 615-8510 Kyoto Japan
| | - Jun-ichi Yoshida
- National Institute of Technology Suzuka College Shiroko-cho 510-0294 Suzuka, Mie Japan
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25
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26
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Nagaki A, Sasatsuki K, Ishiuchi S, Miuchi N, Takumi M, Yoshida JI. Synthesis of Functionalized Ketones from Acid Chlorides and Organolithiums by Extremely Fast Micromixing. Chemistry 2019; 25:4946-4950. [PMID: 30775815 DOI: 10.1002/chem.201900743] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Indexed: 01/03/2023]
Abstract
Synthesis of ketones containing various functional groups from acid chlorides bearing electrophilic functional groups and functionalized organolithiums was achieved using a flow microreactor system. Extremely fast mixing is important for high chemoselectivity.
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Affiliation(s)
- Aiichiro Nagaki
- Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Kengo Sasatsuki
- Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Satoshi Ishiuchi
- Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Nobuyuki Miuchi
- Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Masahiro Takumi
- Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Jun-Ichi Yoshida
- National Institute of Technology, Suzuka College, Emeritus Professor, Kyoto University, Shiroko-cho, Suzuka, Mie, 510-0294, Japan
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27
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Suzuki–Miyaura Coupling Using Monolithic Pd Reactors and Scaling-Up by Series Connection of the Reactors. Catalysts 2019. [DOI: 10.3390/catal9030300] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The space integration of the lithiation of aryl halides, the borylation of aryllithiums, and Suzuki–Miyaura coupling using a Pd catalyst supported by a polymer monolith flow reactor without using an intentionally added base was achieved. To scale up the process, a series connection of the monolith Pd reactor was examined. To suppress the increase in the pressure drop caused by the series connection, a monolith reactor having larger pore sizes was developed by varying the temperature of the monolith preparation. The monolithic Pd reactor having larger pore sizes enabled Suzuki–Miyaura coupling at a higher flow rate because of a lower pressure drop and, therefore, an increase in productivity. The present study indicates that series connection of the reactors with a higher flow rate serves as a good method for increasing the productivity without decreasing the yields.
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28
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Nagaki A, Yamashita H, Hirose K, Tsuchihashi Y, Yoshida JI. Alkyllithium Compounds Bearing Electrophilic Functional Groups: A Flash Chemistry Approach. Angew Chem Int Ed Engl 2019; 58:4027-4030. [PMID: 30690827 DOI: 10.1002/anie.201814088] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Indexed: 11/08/2022]
Abstract
Flash chemistry based on flow microreactor systems allowed alkyllithiums bearing electrophilic functional groups to be successfully generated and used for subsequent reactions. The series of reactions with high reactivity was achieved by extremely accurate control over residence time in a controlled and selective manner.
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Affiliation(s)
- Aiichiro Nagaki
- Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Hiroki Yamashita
- Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Katsuyuki Hirose
- Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Yuta Tsuchihashi
- Department of Synthetic and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Jun-Ichi Yoshida
- National Institute of Technology, Suzuka College, Shiroko-cho, Suzuka, Mie, 510-0294, Japan
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29
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Rodríguez-Padrón D, Puente-Santiago AR, Balu AM, Muñoz-Batista MJ, Luque R. Continuous Flow Synthesis of High Valuable N-Heterocycles via Catalytic Conversion of Levulinic Acid. Front Chem 2019; 7:103. [PMID: 30863746 PMCID: PMC6399384 DOI: 10.3389/fchem.2019.00103] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 02/06/2019] [Indexed: 11/13/2022] Open
Abstract
Graphitic carbon nitride (g-C3N4) was successfully functionalized with a low platinum loading to give rise to an effective and stable catalytic material. The synthesized g-C3N4/Pt was fully characterized by XRD, N2 physisorption, XPS, SEM-Mapping, and TEM techniques. Remarkably, XPS analysis revealed that Pt was in a dominant metallic state. In addition, XPS together with XRD and N2 physisorption measurements indicated that the g-C3N4 preserves its native structure after the platinum deposition process. g-C3N4/Pt was applied to the catalytic conversion of levulinic acid to N-heterocycles under continuous flow conditions. Reaction parameters (temperature, pressure, and concentration of levulinic acid) were studied using 3 levels for each parameter, and the best conditions were employed for the analysis of the catalyst's stability. The catalytic system displayed high selectivity to 1-ethyl-5-methylpyrrolidin-2-one and outstanding stability after 3 h of reaction.
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Affiliation(s)
| | | | - Alina M Balu
- Grupo FQM-383, Departamento de Química Orgánica, Universidad de Cordoba, Cordoba, Spain
| | - Mario J Muñoz-Batista
- Grupo FQM-383, Departamento de Química Orgánica, Universidad de Cordoba, Cordoba, Spain
| | - Rafael Luque
- Grupo FQM-383, Departamento de Química Orgánica, Universidad de Cordoba, Cordoba, Spain.,Scientific Center for Molecular Design and Synthesis of Innovative Compounds for the Medical Industry, People's Friendship University of Russia (RUDN University), Moscow, Russia
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30
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Nagaki A, Yamashita H, Hirose K, Tsuchihashi Y, Yoshida J. Alkyllithium Compounds Bearing Electrophilic Functional Groups: A Flash Chemistry Approach. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814088] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Aiichiro Nagaki
- Department of Synthetic and Biological ChemistryGraduate School of EngineeringKyoto University Nishikyo-ku Kyoto 615-8510 Japan
| | - Hiroki Yamashita
- Department of Synthetic and Biological ChemistryGraduate School of EngineeringKyoto University Nishikyo-ku Kyoto 615-8510 Japan
| | - Katsuyuki Hirose
- Department of Synthetic and Biological ChemistryGraduate School of EngineeringKyoto University Nishikyo-ku Kyoto 615-8510 Japan
| | - Yuta Tsuchihashi
- Department of Synthetic and Biological ChemistryGraduate School of EngineeringKyoto University Nishikyo-ku Kyoto 615-8510 Japan
| | - Jun‐ichi Yoshida
- National Institute of TechnologySuzuka College Shiroko-cho, Suzuka Mie 510-0294 Japan
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31
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Endo Y, Furusawa M, Shimazaki T, Takahashi Y, Nakahara Y, Nagaki A. Molecular Weight Distribution of Polymers Produced by Anionic Polymerization Enables Mixability Evaluation. Org Process Res Dev 2019. [DOI: 10.1021/acs.oprd.8b00403] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yuta Endo
- Micro Chemical Production Study Consortium in Kyoto University, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
- Isolation And Purification Group, Process Development Section, Process Development Labs, Research Institute For Bioscience Products & Fine Chemicals, Ajinomoto Co., Inc., 1-1 Suzuki-cho, Kawasaki-ku, Kanagawa 210-8681, Japan
| | - Mai Furusawa
- Micro Chemical Production Study Consortium in Kyoto University, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
- Oppama Research Laboratory, Toho Chemical Industry Co., Ltd., 5-2931, Urago-cho, Yokosuka-shi, Kanagawa 237-0062, Japan
| | - Toshiya Shimazaki
- Micro Chemical Production Study Consortium in Kyoto University, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
- Tacmina Co., 2-2-14 Awajimachi, Chuo-ku, Osaka 541-0047, Japan
| | - Yusuke Takahashi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yuichi Nakahara
- Micro Chemical Production Study Consortium in Kyoto University, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
- New Frontiers Research Group, Frontier Research Labs., Institute For Innovation, Ajinomoto Co., Inc., 1-1 Suzuki-cho, Kawasaki-ku, Kanagawa 210-8681, Japan
| | - Aiichiro Nagaki
- Micro Chemical Production Study Consortium in Kyoto University, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
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32
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Zhong F, Zhou Y, Chen M. The influence of mixing on chain extension by photo-controlled/living radical polymerization under continuous-flow conditions. Polym Chem 2019. [DOI: 10.1039/c9py01063g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Continuous-flow chemistry holds powerful potential for polymer synthesis, and has attracted increasing attention in recent years.
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Affiliation(s)
- Fuyao Zhong
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Yang Zhou
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
| | - Mao Chen
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai 200433
- China
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33
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Akwi FM, Watts P. Continuous flow chemistry: where are we now? Recent applications, challenges and limitations. Chem Commun (Camb) 2018; 54:13894-13928. [PMID: 30483683 DOI: 10.1039/c8cc07427e] [Citation(s) in RCA: 128] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A general outlook of the changing face of chemical synthesis is provided in this article through recent applications of continuous flow processing in both industry and academia. The benefits, major challenges and limitations associated with the use of this mode of processing are also given due attention as an attempt to put into perspective the current position of continuous flow processing, either as an alternative or potential combinatory technology for batch processing.
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Affiliation(s)
- Faith M Akwi
- Nelson Mandela University, University Way, Port Elizabeth, 6031, South Africa.
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34
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Zeng C, Shen G, Yang F, Chen J, Zhang X, Gu C, Zhou Y, Fan B. Rhodium-Catalyzed Generation of Anhydrous Hydrogen Iodide: An Effective Method for the Preparation of Iodoalkanes. Org Lett 2018; 20:6859-6862. [PMID: 30350672 DOI: 10.1021/acs.orglett.8b02980] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The preparation of anhydrous hydrogen iodide directly from molecular hydrogen and iodine using a rhodium catalyst is reported for the first time. The anhydrous hydrogen iodide generated was proven to be highly active in the transformations of alkenes, phenyl aldehydes, alcohols, and cyclic ethers to the corresponding iodoalkanes. Therefore, the present methodology not only has provided convenient access to anhydrous hydrogen iodide but also offers a practical preparation method for various iodoalkanes in excellent atom economy.
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Affiliation(s)
- Chaoyuan Zeng
- YMU-HKBU Joint Laboratory of Traditional Natural Medicine , Yunnan Minzu University , Kunming 650500 , China
| | - Guoli Shen
- YMU-HKBU Joint Laboratory of Traditional Natural Medicine , Yunnan Minzu University , Kunming 650500 , China
| | - Fan Yang
- YMU-HKBU Joint Laboratory of Traditional Natural Medicine , Yunnan Minzu University , Kunming 650500 , China
| | - Jingchao Chen
- YMU-HKBU Joint Laboratory of Traditional Natural Medicine , Yunnan Minzu University , Kunming 650500 , China
| | - Xuexin Zhang
- YMU-HKBU Joint Laboratory of Traditional Natural Medicine , Yunnan Minzu University , Kunming 650500 , China
| | - Cuiping Gu
- YMU-HKBU Joint Laboratory of Traditional Natural Medicine , Yunnan Minzu University , Kunming 650500 , China
| | - Yongyun Zhou
- YMU-HKBU Joint Laboratory of Traditional Natural Medicine , Yunnan Minzu University , Kunming 650500 , China
| | - Baomin Fan
- YMU-HKBU Joint Laboratory of Traditional Natural Medicine , Yunnan Minzu University , Kunming 650500 , China.,Key Laboratory of Chemistry in Ethnic Medicinal Resources , Yunnan Minzu University , Kunming 650500 , China
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35
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Xiong J, Ma Y, Yang W, Zhong L. Rapid, highly efficient and stable catalytic hydrodechlorination of chlorophenols over novel Pd/CNTs-Ni foam composite catalyst in continuous-flow. JOURNAL OF HAZARDOUS MATERIALS 2018; 355:89-95. [PMID: 29775882 DOI: 10.1016/j.jhazmat.2018.05.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 05/02/2018] [Accepted: 05/09/2018] [Indexed: 06/08/2023]
Abstract
A novel Pd/CNTs-Ni foam composite catalyst was developed for catalytic hydrodechlorination of chlorophenols by using CNTs-Ni foam as support. Characterizations including FESEM, TEM/HRTEM, HAADF-STEM and element mapping revel that the composite catalyst with 2 wt.% Pd loading possesses high porous micro-network structure and high dispersed active Pd nanoparticles (5.81 nm) on CNTs surface. The HDC of chlorophenols over Pd/CNTs-Ni foam composite catalyst has been studied in continuous-flow packed bed reactor. This packed bed reactor system with Pd/CNTs-Ni foam composite catalyst, presented the very short reaction cycle (22-74 s), high efficiency (dechlorination > 99.95%) and excellent catalytic stability during HDC in continuous-flow, making it to be a promising candidate for the HDC of wastewater containing highly toxic chlorinated organic pollutants and other Pd catalyzed hydrogenation reactions.
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Affiliation(s)
- Jun Xiong
- School of Pharmacy, Zunyi Medical University, Guizhou, 510640, China.
| | - Ying Ma
- School of Pharmacy, Zunyi Medical University, Guizhou, 510640, China
| | - Wei Yang
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Linshan Zhong
- School of Pharmacy, Zunyi Medical University, Guizhou, 510640, China
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36
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Evano G, Nitelet A, Thilmany P, Dewez DF. Metal-Mediated Halogen Exchange in Aryl and Vinyl Halides: A Review. Front Chem 2018; 6:114. [PMID: 29755967 PMCID: PMC5932166 DOI: 10.3389/fchem.2018.00114] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 03/28/2018] [Indexed: 11/13/2022] Open
Abstract
Halogenated arenes and alkenes are of prime importance in many areas of science, especially in the pharmaceutical, agrochemical, and chemical industries. While the simplest ones are commercially available, some of them are still hardly accessible depending on their substitution patterns and the nature of the halogen atom. Reactions enabling the selective and efficient replacement of the halogen atom of an aryl or alkenyl halide by another one, lighter, or heavier, are therefore of major importance since they can be used for example to turn a less reactive aryl/alkenyl chloride into the more reactive iodinated derivatives or, in a reversed sense, to block an undesired reactivity, for late-stage modifications or for the introduction of a radionuclide. If some halogen exchange reactions are possible with activated substrates, they usually require catalysis with metal complexes. Remarkably efficient processes have been developed for metal-mediated halogen exchange in aryl and vinyl halides: they are overviewed, in a comprehensive manner, in this review article.
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Affiliation(s)
- Gwilherm Evano
- Laboratoire de Chimie Organique, Service de Chimie et PhysicoChimie Organiques, Université libre de Bruxelles, Brussels, Belgium
| | - Antoine Nitelet
- Laboratoire de Chimie Organique, Service de Chimie et PhysicoChimie Organiques, Université libre de Bruxelles, Brussels, Belgium
| | - Pierre Thilmany
- Laboratoire de Chimie Organique, Service de Chimie et PhysicoChimie Organiques, Université libre de Bruxelles, Brussels, Belgium
| | - Damien F Dewez
- Laboratoire de Chimie Organique, Service de Chimie et PhysicoChimie Organiques, Université libre de Bruxelles, Brussels, Belgium
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37
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Quibell JM, Perry GJP, Cannas DM, Larrosa I. Transition-metal-free decarboxylative bromination of aromatic carboxylic acids. Chem Sci 2018; 9:3860-3865. [PMID: 29780518 PMCID: PMC5935059 DOI: 10.1039/c8sc01016a] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 03/24/2018] [Indexed: 02/02/2023] Open
Abstract
Aromatic acids are converted into aryl bromides simply and efficiently via decarboxylation providing new depth and insight into Hunsdiecker-type reactivity.
Methods for the conversion of aliphatic acids to alkyl halides have progressed significantly over the past century, however, the analogous decarboxylative bromination of aromatic acids has remained a longstanding challenge. The development of efficient methods for the synthesis of aryl bromides is of great importance as they are versatile reagents in synthesis and are present in many functional molecules. Herein we report a transition metal-free decarboxylative bromination of aromatic acids. The reaction is applicable to many electron-rich aromatic and heteroaromatic acids which have previously proved poor substrates for Hunsdiecker-type reactions. In addition, our preliminary mechanistic study suggests that radical intermediates are not involved in this reaction, which is in contrast to classical Hunsdiecker-type reactivity. Overall, the process demonstrates a useful method for producing valuable reagents from inexpensive and abundant starting materials.
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Affiliation(s)
- Jacob M Quibell
- School of Chemistry , University of Manchester , Oxford Road , Manchester , M13 9PL , UK .
| | - Gregory J P Perry
- School of Chemistry , University of Manchester , Oxford Road , Manchester , M13 9PL , UK . .,Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science , Nagoya University , Chikusa , Nagoya 464-8602 , Japan
| | - Diego M Cannas
- School of Chemistry , University of Manchester , Oxford Road , Manchester , M13 9PL , UK .
| | - Igor Larrosa
- School of Chemistry , University of Manchester , Oxford Road , Manchester , M13 9PL , UK .
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38
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Walia P, Kumar M, Bhalla V. Empowering Transition-Metal-Free Cascade Protocol for the Green Synthesis of Biaryls and Alkynes. ACS OMEGA 2018; 3:1983-1990. [PMID: 31458507 PMCID: PMC6641525 DOI: 10.1021/acsomega.7b02014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 01/23/2018] [Indexed: 06/10/2023]
Abstract
The work being presented in this paper demonstrates the simple and efficient "transition-metal-free" and "light-mediated" synthetic protocol for the synthesis of aryl iodides/biaryls/alkynes from aryl bromides. Under ultraviolet irradiation and in basic aqueous media, aryl bromides undergo transformation into aryl iodides which efficiently couple via a cascade reaction with a wide range of terminal alkynes/unactivated arenes to generate target molecules under green conditions.
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39
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Nagaki A, Yamashita H, Takahashi Y, Ishiuchi S, Imai K, Yoshida JI. Selective Mono Addition of Aryllithiums to Dialdehydes by Micromixing. CHEM LETT 2018. [DOI: 10.1246/cl.170899] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Aiichiro Nagaki
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Hiroki Yamashita
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yusuke Takahashi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Satoshi Ishiuchi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Keita Imai
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Jun-ichi Yoshida
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
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40
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Johansen MB, Lindhardt AT. Nucleophilic fluorination facilitated by a CsF–CaF2 packed bed reactor in continuous flow. Chem Commun (Camb) 2018; 54:825-828. [DOI: 10.1039/c7cc09035h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple to prepare, dry and handle packed bed reactor carrying CsF on CaF2, towards nucleophilic fluorinations in continuous flow, is reported.
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Affiliation(s)
- M. B. Johansen
- Department of Engineering
- Center for Carbon Dioxide Activation (CADIAC)
- Interdisciplinary Nanoscience Centre (iNANO)
- Aarhus University
- DK-8200 Aarhus N
| | - A. T. Lindhardt
- Department of Engineering
- Center for Carbon Dioxide Activation (CADIAC)
- Interdisciplinary Nanoscience Centre (iNANO)
- Aarhus University
- DK-8200 Aarhus N
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41
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Webster S, O'Rourke KM, Fletcher C, Pimlott SL, Sutherland A, Lee AL. Rapid Iododeboronation with and without Gold Catalysis: Application to Radiolabelling of Arenes. Chemistry 2017; 24:937-943. [PMID: 29105856 PMCID: PMC5814724 DOI: 10.1002/chem.201704534] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Indexed: 01/07/2023]
Abstract
Radiopharmaceuticals that incorporate radioactive iodine in combination with single‐photon emission computed tomography imaging play a key role in nuclear medicine, with applications in drug development and disease diagnosis. Despite this importance, there are relatively few general methods for the incorporation of radioiodine into small molecules. This work reports a rapid air‐ and moisture‐stable ipso‐iododeboronation procedure that uses NIS in the non‐toxic, green solvent dimethyl carbonate. The fast reaction and mild conditions of the gold‐catalysed method led to the development of a highly efficient process for the radiolabelling of arenes, which constitutes the first example of an application of homogenous gold catalysis to selective radiosynthesis. This was exemplified by the efficient synthesis of radiolabelled meta‐[125I]iodobenzylguanidine, a radiopharmaceutical that is used for the imaging and therapy of human norepinephrine transporter‐expressing tumours.
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Affiliation(s)
- Stacey Webster
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK
| | - Kerry M O'Rourke
- WestCHEM, School of Chemistry, The Joseph Black Building, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Conor Fletcher
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK
| | - Sally L Pimlott
- West of Scotland PET Centre, Greater Glasgow and Clyde NHS Trust, Glasgow, G12 0YN, UK
| | - Andrew Sutherland
- WestCHEM, School of Chemistry, The Joseph Black Building, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Ai-Lan Lee
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK
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42
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Zhang J, Li S, Deng GJ, Gong H. Metal-Free, Oxidant-Free, and Controllable Graphene Oxide Catalyzed Direct Iodination of Arenes and Ketones. ChemCatChem 2017. [DOI: 10.1002/cctc.201701182] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jingyu Zhang
- The Key Laboratory of Environmentally Friendly Chemistry, and Application of the Ministry of Education; College of Chemistry; Xiangtan University; Xiangtan 411105 P.R. China
| | - Shiguang Li
- The Key Laboratory of Environmentally Friendly Chemistry, and Application of the Ministry of Education; College of Chemistry; Xiangtan University; Xiangtan 411105 P.R. China
| | - Guo-Jun Deng
- The Key Laboratory of Environmentally Friendly Chemistry, and Application of the Ministry of Education; College of Chemistry; Xiangtan University; Xiangtan 411105 P.R. China
| | - Hang Gong
- The Key Laboratory of Environmentally Friendly Chemistry, and Application of the Ministry of Education; College of Chemistry; Xiangtan University; Xiangtan 411105 P.R. China
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43
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Amal Joseph PJ, Priyadarshini S. Copper-Mediated C–X Functionalization of Aryl Halides. Org Process Res Dev 2017. [DOI: 10.1021/acs.oprd.7b00285] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- P. J. Amal Joseph
- Department
of Chemistry, St. Albert’s College, Ernakulam, Kerala 682018, India
| | - S. Priyadarshini
- Inorganic & Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
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44
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Microwave-Assisted Silver-Catalyzed Protodecarboxylation and Decarboxylative Iodination of Aromatic Carboxylic Acids. Catalysts 2017. [DOI: 10.3390/catal7110314] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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45
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Perry GJP, Quibell JM, Panigrahi A, Larrosa I. Transition-Metal-Free Decarboxylative Iodination: New Routes for Decarboxylative Oxidative Cross-Couplings. J Am Chem Soc 2017; 139:11527-11536. [PMID: 28735532 PMCID: PMC5662929 DOI: 10.1021/jacs.7b05155] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
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Constructing products of high synthetic
value from inexpensive and abundant starting materials is of great
importance. Aryl iodides are essential building blocks for the synthesis
of functional molecules, and efficient methods for their synthesis
from chemical feedstocks are highly sought after. Here we report a
low-cost decarboxylative iodination that occurs simply
from readily available benzoic acids and I2. The reaction
is scalable and the scope and robustness of the reaction is thoroughly
examined. Mechanistic studies suggest that this reaction does not
proceed via a radical mechanism, which is in contrast to classical
Hunsdiecker-type decarboxylative halogenations. In addition,
DFT studies allow comparisons to be made between our procedure and
current transition-metal-catalyzed decarboxylations. The utility
of this procedure is demonstrated in its application to oxidative
cross-couplings of aromatics via decarboxylative/C–H
or double decarboxylative activations that use I2 as the terminal oxidant. This strategy allows the preparation of
biaryls previously inaccessible via decarboxylative methods
and holds other advantages over existing decarboxylative oxidative
couplings, as stoichiometric transition metals are avoided.
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Affiliation(s)
- Gregory J P Perry
- School of Chemistry, University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
| | - Jacob M Quibell
- School of Chemistry, University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
| | - Adyasha Panigrahi
- School of Chemistry, University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
| | - Igor Larrosa
- School of Chemistry, University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom
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46
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Ganiek MA, Becker MR, Berionni G, Zipse H, Knochel P. Barbier Continuous Flow Preparation and Reactions of Carbamoyllithiums for Nucleophilic Amidation. Chemistry 2017; 23:10280-10284. [PMID: 28590518 DOI: 10.1002/chem.201702593] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Indexed: 11/05/2022]
Abstract
An ambient temperature continuous flow method for nucleophilic amidation and thioamidation is described. Deprotonation of formamides by lithium diisopropylamine (LDA) affords carbamoyllithium intermediates that are quenched in situ with various electrophiles such as ketones, allyl bromides, Weinreb and morpholino amides. The nature of the reactive lithium intermediates and the thermodynamics of the metalation were further investigated by ab initio calculations and kinetic experiments.
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Affiliation(s)
- Maximilian A Ganiek
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany
| | - Matthias R Becker
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany
| | - Guillaume Berionni
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany
| | - Hendrik Zipse
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany
| | - Paul Knochel
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377, München, Germany
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47
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Plutschack MB, Pieber B, Gilmore K, Seeberger PH. The Hitchhiker's Guide to Flow Chemistry ∥. Chem Rev 2017; 117:11796-11893. [PMID: 28570059 DOI: 10.1021/acs.chemrev.7b00183] [Citation(s) in RCA: 1033] [Impact Index Per Article: 147.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Flow chemistry involves the use of channels or tubing to conduct a reaction in a continuous stream rather than in a flask. Flow equipment provides chemists with unique control over reaction parameters enhancing reactivity or in some cases enabling new reactions. This relatively young technology has received a remarkable amount of attention in the past decade with many reports on what can be done in flow. Until recently, however, the question, "Should we do this in flow?" has merely been an afterthought. This review introduces readers to the basic principles and fundamentals of flow chemistry and critically discusses recent flow chemistry accounts.
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Affiliation(s)
- Matthew B Plutschack
- Department of Biomolecular Systems, Max-Planck Institute of Colloids and Interfaces , Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Bartholomäus Pieber
- Department of Biomolecular Systems, Max-Planck Institute of Colloids and Interfaces , Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Kerry Gilmore
- Department of Biomolecular Systems, Max-Planck Institute of Colloids and Interfaces , Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Peter H Seeberger
- Department of Biomolecular Systems, Max-Planck Institute of Colloids and Interfaces , Am Mühlenberg 1, 14476 Potsdam, Germany.,Institute of Chemistry and Biochemistry, Department of Biology, Chemistry and Pharmacy, Freie Universität Berlin , Arnimallee 22, 14195 Berlin, Germany
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48
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Alekseyev RS, Amirova SS, Terenin VI. Synthesis of 2,3-Disubstituted 5-Iodo-1H
-Pyrrolo[2,3-b
]pyridines via
Fischer Cyclization. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2865] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Roman S. Alekseyev
- Chemistry Department; M. V. Lomonosov Moscow State University; Leninskiye Gory 1/3 Moscow 119991 Russian Federation
| | - Sabina S. Amirova
- Chemistry Department; M. V. Lomonosov Moscow State University, Baku Branch; Universitetskaya St. 1, Khojasan, Binagadi AZ 1144 Baku Azerbaijan
| | - Vladimir I. Terenin
- Chemistry Department; M. V. Lomonosov Moscow State University; Leninskiye Gory 1/3 Moscow 119991 Russian Federation
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49
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Simple, Efficient and Controllable Synthesis of Iodo/Di-iodoarenes via Ipsoiododecarboxylation/Consecutive Iodination Strategy. Sci Rep 2017; 7:40430. [PMID: 28091536 PMCID: PMC5238447 DOI: 10.1038/srep40430] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 12/05/2016] [Indexed: 01/09/2023] Open
Abstract
A practical, efficient, and operationally simple strategy for the ipsoiododecarboxylation and di-iodination of aromatic carboxylic acids using the low-cost commercial reagent succinimide (NIS) as iodine source is reported. This iodination or di-iodination process can be easily controlled through reaction conditions, thereby providing corresponding iodination or di-iodination products with high yields. Furthermore, these two reactions can be easily scaled up to gram-scale by using palladium catalyst (0.66 mol%), which provides high isolated yield.
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50
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An efficient synthesis of N-substituted phthalimides using SiO2-tpy-Nb as heterogeneous and reusable catalyst. CATAL COMMUN 2017. [DOI: 10.1016/j.catcom.2016.09.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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