1
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Yoshizawa K, Li BX, Matsuyama T, Wang C, Uchiyama M. Visible-Light-Driven Germyl Radical Generation via EDA-Catalyzed ET-HAT Process. Chemistry 2024:e202401546. [PMID: 38716768 DOI: 10.1002/chem.202401546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Indexed: 06/28/2024]
Abstract
We have established a facile and efficient protocol for the generation of germyl radicals by employing photo-excited electron transfer (ET) in an electron donor-acceptor (EDA) complex to drive hydrogen-atom transfer (HAT) from germyl hydride (R3GeH). Using a catalytic amount of EDA complex of commercially available thiol and benzophenone derivatives, the ET-HAT cycle smoothly proceeds simply upon blue-light irradiation without any transition metal or photocatalyst. This protocol also affords silyl radical from silyl hydride.
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Affiliation(s)
- Kaito Yoshizawa
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Bi-Xiao Li
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Taro Matsuyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Chao Wang
- Faculty of Pharmaceutical Sciences, Institute of Medicinal, Pharmaceutical, and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa-shi, Ishikawa, 920-1192, Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
- Research Initiative for Supra-Materials, Shinshu University, 4-17-1 Wakasato, Nagano-shi, Nagano, 380-8553, Japan
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2
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Yamaguchi E, Murai M, Itoh A. Halogen-Bonding-Enabled Photoinduced Atom Transfer Radical Addition/Cyclization Reaction Leading to Tricyclic Heterocycles. J Org Chem 2024; 89:6555-6563. [PMID: 38657225 DOI: 10.1021/acs.joc.4c00204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Atom transfer radical addition (ATRA) reactions are crucial for the dual functionalization of unsaturated hydrocarbons. Radical generation, pivotal in ATRA, has seen advancements from thermal to photochemical methods. Recent focus on halogen-bonding-based radical generation, including our group's innovative photochemical approach, offers cost-effective alternatives to transition-metal-dependent photocatalysts. This eliminates the need for high-energy UV light, enhancing the efficiency with noncovalent interactions.
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Affiliation(s)
- Eiji Yamaguchi
- Gifu Pharmaceutical University, 1-25-4, Daigaku-Nishi, Gifu 501-1196, Japan
- Center for One Medicine Innovative Translational Research (COMIT), Gifu University, 1-1, Yanagido, Gifu 501-1193, Japan
| | - Masanobu Murai
- Gifu Pharmaceutical University, 1-25-4, Daigaku-Nishi, Gifu 501-1196, Japan
| | - Akichika Itoh
- Gifu Pharmaceutical University, 1-25-4, Daigaku-Nishi, Gifu 501-1196, Japan
- Center for One Medicine Innovative Translational Research (COMIT), Gifu University, 1-1, Yanagido, Gifu 501-1193, Japan
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3
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Rrapi M, Batsika CS, Nikitas NF, Tappin NDC, Triandafillidi I, Renaud P, Kokotos CG. Photochemical Synthesis of Lactones, Cyclopropanes and ATRA Products: Revealing the Role of Sodium Ascorbate. Chemistry 2024; 30:e202400253. [PMID: 38324672 DOI: 10.1002/chem.202400253] [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: 01/28/2024] [Revised: 02/06/2024] [Accepted: 02/06/2024] [Indexed: 02/09/2024]
Abstract
Light-mediated processes have received significant attention, since they have re-surfaced unconventional reactivity platforms, complementary to conventional polar chemistry. γ-Lactones and cyclopropanes are prevalent moieties, found in numerous natural products and pharmaceuticals. Among various methods for their synthesis, light-mediated protocols are coming to the spotlight, although these are contingent upon the use of photoorgano- or metal-based catalysts. Herein, we introduce a novel photochemical activation of iodo-reagents via the use of cheap sodium ascorbate or ascorbic acid to enable their homolytic scission and addition onto double bonds. The developed protocol was applied successfully to the formal [3+2] cycloaddition for the synthesis of γ-lactones, traditional atom transfer radical addition (ATRA) reactions and the one-pot two-step conversion of alkenes to cyclopropanes. In all cases, the desired products were obtained in good to high yields, while the reaction mechanism was thoroughly investigated. Depending on the nature of the iodo-reagent, a halogen or a hydrogen-bonded complex is formed, which initiates the process.
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Affiliation(s)
- Marie Rrapi
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens, 15771, Greece
| | - Charikleia S Batsika
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens, 15771, Greece
| | - Nikolaos F Nikitas
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens, 15771, Greece
- Department of Chemistry, Biochemistry, and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, CH-3012, Bern, Switzerland
| | - Nicholas D C Tappin
- Department of Chemistry, Biochemistry, and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, CH-3012, Bern, Switzerland
| | - Ierasia Triandafillidi
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens, 15771, Greece
| | - Philippe Renaud
- Department of Chemistry, Biochemistry, and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, CH-3012, Bern, Switzerland
| | - Christoforos G Kokotos
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens, 15771, Greece
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4
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Ma L, Li J, Zhang X, Yang Y, Lin X, Chen X. Exploring Tunable Properties, Solvent-Modulated Dynamics, and Novel C(sp 3)-H Activation Mechanisms in Electron Donor-Acceptor Complexes. J Phys Chem Lett 2024:3412-3418. [PMID: 38502941 DOI: 10.1021/acs.jpclett.4c00455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
Electron donor-acceptor (EDA) complex photochemistry has emerged as a vibrant area in visible-light-mediated synthetic radical chemistry. However, theoretical insights into the reaction mechanisms remain limited. Our study investigates the influence of solvent polarity and halogen atom types on radical reaction pathways in EDA complexes. We demonstrate that solvent polarity modulates the charge transfer and spatial arrangement within EDA complexes, thereby influencing their stability and reaction kinetics. Iodide ions play a crucial role in facilitating free radical generation and stabilizing reaction intermediates. Different halogen atom types exhibit distinct effects on radical reactions. Variations in radical concentration and solvent environment further affect the pathway selectivity. Additionally, light conditions influence the free radical generation and pathway selectivity. Our findings enhance the understanding of EDA complex photochemistry and radical reactions, offering insights for organic synthesis and photochemistry applications.
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Affiliation(s)
- Lishuang Ma
- College of Chemistry and Chemical Engineering, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Jianhao Li
- College of Chemistry and Chemical Engineering, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Xiaorui Zhang
- Key Laboratory of Theoretical and Computational Photochemistry of Ministry of Education, Department of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Yanting Yang
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials of Ministry of Education, School of Chemistry and Materials Science, Shanxi Normal University, Taiyuan 030032, P. R. China
| | - Xufeng Lin
- College of Chemistry and Chemical Engineering, State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Xuebo Chen
- Key Laboratory of Theoretical and Computational Photochemistry of Ministry of Education, Department of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan 475004 P. R. China
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5
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Meger FS, Murphy JA. Recent Advances in C-H Functionalisation through Indirect Hydrogen Atom Transfer. Molecules 2023; 28:6127. [PMID: 37630379 PMCID: PMC10459052 DOI: 10.3390/molecules28166127] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 08/09/2023] [Accepted: 08/15/2023] [Indexed: 08/27/2023] Open
Abstract
The functionalisation of C-H bonds has been an enormous achievement in synthetic methodology, enabling new retrosynthetic disconnections and affording simple synthetic equivalents for synthons. Hydrogen atom transfer (HAT) is a key method for forming alkyl radicals from C-H substrates. Classic reactions, including the Barton nitrite ester reaction and Hofmann-Löffler-Freytag reaction, among others, provided early examples of HAT. However, recent developments in photoredox catalysis and electrochemistry have made HAT a powerful synthetic tool capable of introducing a wide range of functional groups into C-H bonds. Moreover, greater mechanistic insights into HAT have stimulated the development of increasingly site-selective protocols. Site-selectivity can be achieved through the tuning of electron density at certain C-H bonds using additives, a judicious choice of HAT reagent, and a solvent system. Herein, we describe the latest methods for functionalizing C-H/Si-H/Ge-H bonds using indirect HAT between 2018-2023, as well as a critical discussion of new HAT reagents, mechanistic aspects, substrate scopes, and background contexts of the protocols.
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Affiliation(s)
- Filip S. Meger
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, 16 Avinguda dels Països Catalans, 43007 Tarragona, Catalonia, Spain
| | - John A. Murphy
- Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, UK
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6
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Bugaenko DI, Volkov AA, Karchava AV. A Thiol-Free Route to Alkyl Aryl Thioethers. J Org Chem 2023; 88:9968-9972. [PMID: 37432044 DOI: 10.1021/acs.joc.3c00734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2023]
Abstract
Most existing methods for the synthesis of alkyl aryl thioethers require the use of mercaptans as the starting materials, which comes with practical limitations. Reactions of diaryliodonium salts with xanthate salts, easily prepared from the corresponding alcohols and CS2, under the developed conditions represent an operationally simple, thiol-free method for the synthesis of these valuable compounds. The protocol features high functional group tolerance and can be applied to the late-stage C-H functionalization and for the introduction of a CD3S group.
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Affiliation(s)
- Dmitry I Bugaenko
- Department of Chemistry, Moscow State University, Moscow 119991, Russia
| | - Alexey A Volkov
- Department of Chemistry, Moscow State University, Moscow 119991, Russia
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7
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van Dalsen L, Brown RE, Rossi‐Ashton JA, Procter DJ. Sulfonium Salts as Acceptors in Electron Donor-Acceptor Complexes. Angew Chem Int Ed Engl 2023; 62:e202303104. [PMID: 36959098 PMCID: PMC10952135 DOI: 10.1002/anie.202303104] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/22/2023] [Accepted: 03/23/2023] [Indexed: 03/25/2023]
Abstract
The photoactivation of electron donor-acceptor complexes has emerged as a sustainable, selective and versatile strategy for the generation of radical species. Electron donor-acceptor (EDA) complexation, however, imposes electronic constraints on the donor and acceptor components and this can limit the range of radicals that can be generated using the approach. New EDA complexation strategies exploiting sulfonium salts allow radicals to be generated from native functionality. For example, aryl sulfonium salts, formed by the activation of arenes, can serve as the acceptor components in EDA complexes due to their electron-deficient nature. This "sulfonium tag" approach relaxes the electronic constraints on the parent substrate and dramatically expands the range of radicals that can be generated using EDA complexation. In this review, these new applications of sulfonium salts will be introduced and the areas of chemical space rendered accessible through this innovation will be highlighted.
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Affiliation(s)
| | - Rachel E. Brown
- Department of ChemistryThe University of ManchesterManchesterUK
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8
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Wu Z, Pratt DA. Radical approaches to C-S bonds. Nat Rev Chem 2023:10.1038/s41570-023-00505-x. [PMID: 37344618 DOI: 10.1038/s41570-023-00505-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/02/2023] [Indexed: 06/23/2023]
Abstract
Organosulfur functionalities are ubiquitous in nature, pharmaceuticals, agrochemicals, materials and flavourants. Historically, these moieties were introduced almost exclusively using ionic chemistry; however, radical-based methods for the installation of sulfur-based functional groups have recently come to the fore. These radical methods have enabled their late-stage introduction into complex molecules, avoiding the need to preserve labile organosulfur moieties through multistep synthetic sequences. Here, we discuss homolytic C-S bond-forming processes, with a particular emphasis on radical substitution approaches to sulfide, disulfide and sulfinyl products, and the use of sulfur dioxide and its surrogates to build sulfonyl products. We also highlight the mechanistic considerations that we hope will guide further development of radical-based strategies compatible with the various organosulfur moieties that feature in modern chemistry.
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Affiliation(s)
- Zijun Wu
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, Canada
| | - Derek A Pratt
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario, Canada.
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9
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Wang G, Gao L, Feng Y, Lin L. Visible-Light-Activated Nickel Thiolates for C-S Couplings. Org Lett 2023. [PMID: 37267073 DOI: 10.1021/acs.orglett.3c01474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Thiolates are known as the inhibitors of metal catalysis due to their strong coordination with the metal. Herein, we reported visible-light-induced homolysis of the Ni-S bond to activate the nickel(II) thiolates for the C-S coupling, obviating the use of exogenous photocatalysts and other additives. Various aryl bromides/iodides can efficiently couple with thiols with a wide range of functional groups under mild conditions. Preliminary mechanistic studies suggested the homolysis of the Ni-S bond is the key step for couplings and nickel(0) is not involved in the process.
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Affiliation(s)
- Guohua Wang
- School of Chemistry, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Lei Gao
- School of Chemistry, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Yunhui Feng
- School of Chemistry, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Luqing Lin
- School of Chemistry, Dalian University of Technology, Dalian, Liaoning 116024, China
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10
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Piedra HF, Valdés C, Plaza M. Shining light on halogen-bonding complexes: a catalyst-free activation mode of carbon-halogen bonds for the generation of carbon-centered radicals. Chem Sci 2023; 14:5545-5568. [PMID: 37265729 PMCID: PMC10231334 DOI: 10.1039/d3sc01724a] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 05/03/2023] [Indexed: 06/03/2023] Open
Abstract
The discovery of new activation modes for the creation of carbon-centered radicals is a task of great interest in organic chemistry. Classical activation modes for the generation of highly reactive radical carbon-centered intermediates typically relied on thermal activation of radical initiators or irradiation with unsafe energetic UV light of adequate reaction precursors. In recent years, photoredox chemistry has emerged as a leading strategy towards the catalytic generation of C-centered radicals, which enabled their participation in novel synthetic organic transformations which is otherwise very challenging or even impossible to take place. As an alternative to these activation modes for the generation of C-centered radicals, the pursuit of greener, visible-light initiated reactions that do not necessitate a photoredox/metal catalyst has recently caught the attention of chemists. In this review, we covered recent transformations, which rely on photoactivation with low-energy light of a class of EDA complexes, known as halogen-bonding adducts, for the creation of C-centered radicals.
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Affiliation(s)
- Helena F Piedra
- Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica "Enrique Moles" and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Oviedo Julián Clavería 8 33006 Oviedo Spain
| | - Carlos Valdés
- Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica "Enrique Moles" and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Oviedo Julián Clavería 8 33006 Oviedo Spain
| | - Manuel Plaza
- Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica "Enrique Moles" and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Oviedo Julián Clavería 8 33006 Oviedo Spain
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11
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Hou YJ, Li Y, Zhao ZW, Fan TG, Sun BX, Wang XN, Li YM. Oxidative Dehydrogenative Coupling of Thiols with Alkanes for the Synthesis of Sulfoxides. Org Lett 2023; 25:517-521. [PMID: 36649602 DOI: 10.1021/acs.orglett.2c04238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
An oxidative dehydrogenative coupling of thiols with alkanes via direct C(sp3)-H bond functionalization to form a new C-S bond and S═O double bond was developed. The present reaction features the use of readily available reagents and high step- and atom-efficiency, thus providing an efficient access to sulfoxides. A possible mechanism is proposed.
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Affiliation(s)
- Yu-Jian Hou
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Yi Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Zhi-Wei Zhao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Tai-Gang Fan
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Bo-Xun Sun
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Xu-Nan Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Ya-Min Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
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12
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Herrera-Luna JC, Pérez-Aguilar MC, Gerken L, García Mancheño O, Consuelo Jiménez M, Pérez-Ruiz R. Effective Formation of New C(sp 2 )-S Bonds via Photoactivation of Alkylamine-based Electron Donor-Acceptor Complexes. Chemistry 2023; 29:e202203353. [PMID: 36314234 PMCID: PMC10107790 DOI: 10.1002/chem.202203353] [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: 10/28/2022] [Indexed: 12/12/2022]
Abstract
A novel visible light promoted formation of CAryl- S bonds through electron donor-acceptor (EDA) complexes of alkylamines with 5- and 6-membered (hetero)arene halides is presented. This represents the first EDA-based thiolation method not relying on π-π or a thiolate-anion-π interactions and provides a facile access to heteroarene radicals, which can be suitably trapped by disulfide derivatives to form the corresponding versatile arylsulfides. Mechanistic investigations on the aspects of the whole process were conducted by spectroscopic measurements, demonstrating the hypothesized EDA complex formation. Moreover, the strength of this method has been proven by a gram-scale synthesis of thiolated products and the late-stage derivatization of an anticoagulant drug.
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Affiliation(s)
- Jorge C Herrera-Luna
- Departamento de Química, Universitat Politècnica de València (UPV), Camí de Vera S/N, 46022, Valencia, Spain
| | | | - Leon Gerken
- Organic Chemistry Institute, University of Münster, Corrensstrasse 36, 48149, Münster, Germany
| | - Olga García Mancheño
- Organic Chemistry Institute, University of Münster, Corrensstrasse 36, 48149, Münster, Germany
| | - M Consuelo Jiménez
- Departamento de Química, Universitat Politècnica de València (UPV), Camí de Vera S/N, 46022, Valencia, Spain
| | - Raúl Pérez-Ruiz
- Departamento de Química, Universitat Politècnica de València (UPV), Camí de Vera S/N, 46022, Valencia, Spain
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13
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Abstract
The emergence of modern photocatalysis, characterized by mildness and selectivity, has significantly spurred innovative late-stage C-H functionalization approaches that make use of low energy photons as a controllable energy source. Compared to traditional late-stage functionalization strategies, photocatalysis paves the way toward complementary and/or previously unattainable regio- and chemoselectivities. Merging the compelling benefits of photocatalysis with the late-stage functionalization workflow offers a potentially unmatched arsenal to tackle drug development campaigns and beyond. This Review highlights the photocatalytic late-stage C-H functionalization strategies of small-molecule drugs, agrochemicals, and natural products, classified according to the targeted C-H bond and the newly formed one. Emphasis is devoted to identifying, describing, and comparing the main mechanistic scenarios. The Review draws a critical comparison between established ionic chemistry and photocatalyzed radical-based manifolds. The Review aims to establish the current state-of-the-art and illustrate the key unsolved challenges to be addressed in the future. The authors aim to introduce the general readership to the main approaches toward photocatalytic late-stage C-H functionalization, and specialist practitioners to the critical evaluation of the current methodologies, potential for improvement, and future uncharted directions.
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Affiliation(s)
- Peter Bellotti
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 36, 48149Münster, Germany
| | - Huan-Ming Huang
- School of Physical Science and Technology, ShanghaiTech University, 201210Shanghai, China
| | - Teresa Faber
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 36, 48149Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 36, 48149Münster, Germany
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14
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Bao Z, Zou J, Mou C, Jin Z, Ren SC, Chi YR. Direct Reaction of Nitroarenes and Thiols via Photodriven Oxygen Atom Transfer for Access to Sulfonamides. Org Lett 2022; 24:8907-8913. [PMID: 36421405 DOI: 10.1021/acs.orglett.2c03770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Sulfonamide is a common motif in medicines and agrochemicals. Typically, this class of functional groups is prepared by reacting amines with sulfonyl chlorides that are presynthesized from nitro compounds and thiols, respectively. Here, we report a novel strategy that directly couples nitro compounds and thiols to form sulfonamides atom- and redox-economically. Mechanistic studies suggest our reaction proceeds via direct photoexcitation of nitroarenes that eventually transfers the oxygen atoms from the nitro group to the thiol unit.
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Affiliation(s)
- Zhaowei Bao
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Juan Zou
- Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Chengli Mou
- Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Zhichao Jin
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Shi-Chao Ren
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
- Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Yonggui Robin Chi
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
- Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
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15
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Meyer F, Halasyamani PS, Masson G. Advances in Organic and Inorganic Photoredox Catalysis. ACS ORGANIC & INORGANIC AU 2022; 3:1-3. [PMID: 36855535 PMCID: PMC9954384 DOI: 10.1021/acsorginorgau.2c00062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Indexed: 12/13/2022]
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16
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Uchikura T, Tsubono K, Hara Y, Akiyama T. Dual-Role Halogen-Bonding-Assisted EDA-SET/HAT Photoreaction System with Phenol Catalyst and Aryl Iodide: Visible-Light-Driven Carbon–Carbon Bond Formation. J Org Chem 2022; 87:15499-15510. [DOI: 10.1021/acs.joc.2c02032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Tatsuhiro Uchikura
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1, Mejiro,
Toshima-ku, Tokyo 171-8588, Japan
| | - Kazushi Tsubono
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1, Mejiro,
Toshima-ku, Tokyo 171-8588, Japan
| | - Yurina Hara
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1, Mejiro,
Toshima-ku, Tokyo 171-8588, Japan
| | - Takahiko Akiyama
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1, Mejiro,
Toshima-ku, Tokyo 171-8588, Japan
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17
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Yang F, He GC, Sun SH, Song TT, Min XT, Ji DW, Guo SY, Chen QA. Selective C-S Bond Constructions Using Inorganic Sulfurs via Photoinduced Electron Donor-Acceptor Activation. J Org Chem 2022; 87:14241-14249. [PMID: 36219805 DOI: 10.1021/acs.joc.2c01750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
By complementing traditional transition metal catalysis, photoinduced catalysis has emerged as a versatile and sustainable way to achieve carbon-heteroatom bond formation. This work discloses a visible-light-induced reaction for the formation of a C-S bond from aryl halides and inorganic sulfuration agents via electron donor-acceptor (EDA) complex photocatalysis. Divergent formations of organic sulfide and disulfide have been demonstrated under mild conditions. Preliminary mechanistic studies suggest that visible-light-induced intracomplex charge transfer within the monosulfide-anion-containing EDA complex permits the C-S bond construction reactivity.
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Affiliation(s)
- Fan Yang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Gu-Cheng He
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Shao-Han Sun
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Ting-Ting Song
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Xiang-Ting Min
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Ding-Wei Ji
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Shi-Yu Guo
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Qing-An Chen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China.,University of Chinese Academy of Sciences, Beijing 100049, China
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18
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Mao S, Zhao Y, Luo Z, Wang R, Yuan B, Hu J, Hu L, Zhang SQ, Ye X, Wang M, Chen Z. Metal-free photo-induced sulfidation of aryl iodide and other chalcogenation. Front Chem 2022; 10:941016. [PMID: 35958235 PMCID: PMC9360480 DOI: 10.3389/fchem.2022.941016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 06/30/2022] [Indexed: 11/13/2022] Open
Abstract
A photo-induced C-S radical cross-coupling of aryl iodides and disulfides under transition-metal and external photosensitizer free conditions for the synthesis of aryl sulfides at room temperature has been presented, which features mild reaction conditions, broad substrate scope, high efficiency, and good functional group compatibility. The developed methodology could be readily applied to forge C-S bond in the field of pharmaceutical and material science.
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Affiliation(s)
- Shuai Mao
- Department of Medicinal Chemistry, School of Pharmacy, Xi’an Jiaotong University, Xi’an, SN, China
- *Correspondence: Shuai Mao, ; Mingliang Wang, ; Zhengkai Chen,
| | - Yahao Zhao
- Department of Medicinal Chemistry, School of Pharmacy, Xi’an Jiaotong University, Xi’an, SN, China
| | - Zixuan Luo
- Xi’an Changqing Chemical Group Co., Ltd, Xi’an, SN, China
| | - Ruizhe Wang
- Department of Medicinal Chemistry, School of Pharmacy, Xi’an Jiaotong University, Xi’an, SN, China
| | - Bo Yuan
- Department of Medicinal Chemistry, School of Pharmacy, Xi’an Jiaotong University, Xi’an, SN, China
| | - Jianping Hu
- Qingyuan Edible Fungi Research Center, Lishui, ZJ, China
| | - Linghao Hu
- Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, China
| | - San-Qi Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Xi’an Jiaotong University, Xi’an, SN, China
| | - Xiaoxing Ye
- Qingyuan Edible Fungi Research Center, Lishui, ZJ, China
| | - Mingliang Wang
- Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, China
- *Correspondence: Shuai Mao, ; Mingliang Wang, ; Zhengkai Chen,
| | - Zhengkai Chen
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, China
- *Correspondence: Shuai Mao, ; Mingliang Wang, ; Zhengkai Chen,
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19
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Volkov AA, Bugaenko DI, Bogdanov AV, Karchava AV. Visible-Light-Driven Thioesterification of Aryl Halides with Potassium Thiocarboxylates: Transition-Metal Catalyst-Free Incorporation of Sulfur Functionalities into an Aromatic Ring. J Org Chem 2022; 87:8170-8182. [PMID: 35653579 DOI: 10.1021/acs.joc.2c00913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Reactions of acceptor-substituted aryl iodides and bromides with potassium thiocarboxylates under white light irradiation allow for the preparation of S-aryl thioesters including synthetically versatile S-aryl thioacetates. This transition-metal and external photocatalyst-free method features extremely mild reaction conditions compared with those used in transition-metal-catalyzed protocols. Reactions proceed via the initial formation of an electron donor-acceptor (EDA) complex in the ground state, which was supported by UV-vis spectra. Electron paramagnetic resonance (EPR) spin-trapping experiments using phenyl-N-tert-butylnitrone (PBN) have revealed the radical nature of the reaction.
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Affiliation(s)
- Alexey A Volkov
- Department of Chemistry, Moscow State University, Moscow 119234, Russia
| | - Dmitry I Bugaenko
- Department of Chemistry, Moscow State University, Moscow 119234, Russia
| | - Alexey V Bogdanov
- Department of Chemistry, Moscow State University, Moscow 119234, Russia
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20
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Cabrera-Afonso MJ, Granados A, Molander GA. Sustainable Thioetherification via Electron Donor-Acceptor Photoactivation Using Thianthrenium Salts. Angew Chem Int Ed Engl 2022; 61:e202202706. [PMID: 35294095 DOI: 10.1002/anie.202202706] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Indexed: 01/07/2023]
Abstract
The synthesis of sulfides has been widely studied because this functional subunit is prevalent in biomolecules and pharmaceuticals, as well as being a useful synthetic platform for further elaboration. Thus, various methods to build C-S bonds have been developed, but typically they require the use of precious metals or harsh conditions. Electron donor-acceptor (EDA) complex photoactivation strategies have emerged as versatile and sustainable ways to achieve C-S bond formation, avoiding challenges associated with previous methods. This work describes an open-to-air, photoinduced, site-selective C-H thioetherification from readily available reagents via EDA complex formation that tolerates a wide range of different functional groups. Moreover, C(sp2 )-halogen bonds remain intact using this protocol, allowing late-stage installation of the sulfide motif in various bioactive scaffolds, while allowing yet further modification through more traditional C-X bond cleavage protocols. Additionally, various mechanistic investigations support the envisioned EDA complex scenario.
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Affiliation(s)
- María Jesús Cabrera-Afonso
- Department of Chemistry, University of Pennsylvania, Roy and Diana Vagelos Laboratories, 231 S. 34th Street, Philadelphia, PA 19104-6323, USA
| | - Albert Granados
- Department of Chemistry, University of Pennsylvania, Roy and Diana Vagelos Laboratories, 231 S. 34th Street, Philadelphia, PA 19104-6323, USA
| | - Gary A Molander
- Department of Chemistry, University of Pennsylvania, Roy and Diana Vagelos Laboratories, 231 S. 34th Street, Philadelphia, PA 19104-6323, USA
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21
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Zhang L, He J, Zhang P, Zhu D, Zheng K, Shen C. Visible-light-induced C–H sulfenylation of quinoxalin-2(1H)-ones with disulfides by sustainable cerium catalysis. GREEN SYNTHESIS AND CATALYSIS 2022. [DOI: 10.1016/j.gresc.2022.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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22
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Fuse H, Irie Y, Fuki M, Kobori Y, Kato K, Yamakata A, Higashi M, Mitsunuma H, Kanai M. Identification of a Self-Photosensitizing Hydrogen Atom Transfer Organocatalyst System. J Am Chem Soc 2022; 144:6566-6574. [PMID: 35357152 DOI: 10.1021/jacs.2c01705] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We developed organocatalyst systems to promote the cleavage of stable C-H bonds, such as formyl, α-hydroxy, and benzylic C-H bonds, through a hydrogen atom transfer (HAT) process without the use of exogenous photosensitizers. An electronically tuned thiophosphoric acid, 7,7'-OMe-TPA, was assembled with substrate or co-catalyst N-heteroaromatics through hydrogen bonding and π-π interactions to form electron donor-acceptor (EDA) complexes. Photoirradiation of the EDA complex induced stepwise, sequential single-electron transfer (SET) processes to generate a HAT-active thiyl radical. The first SET was from the electron-rich naphthyl group of 7,7'-OMe-TPA to the protonated N-heteroaromatics and the second proton-coupled SET (PCET) from the thiophosphoric acid moiety of 7,7'-OMe-TPA to the resulting naphthyl radical cation. Spectroscopic studies and theoretical calculations characterized the stepwise SET process mediated by short-lived intermediates. This organocatalytic HAT system was applied to four different carbon-hydrogen (C-H) functionalization reactions, hydroxyalkylation and alkylation of N-heteroaromatics, acceptorless dehydrogenation of alcohols, and benzylation of imines, with high functional group tolerance.
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Affiliation(s)
- Hiromu Fuse
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
| | - Yu Irie
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
| | - Masaaki Fuki
- Molecular Photoscience Research Center, Kobe University, Kobe 657-8501, Japan.,Department of Chemistry, Graduate School of Science, Kobe University, Kobe 657-8501, Japan
| | - Yasuhiro Kobori
- Molecular Photoscience Research Center, Kobe University, Kobe 657-8501, Japan.,Department of Chemistry, Graduate School of Science, Kobe University, Kobe 657-8501, Japan
| | - Kosaku Kato
- Graduate School of Engineering, Toyota Technological Institute, Nagoya 468-8511, Japan
| | - Akira Yamakata
- Graduate School of Engineering, Toyota Technological Institute, Nagoya 468-8511, Japan
| | - Masahiro Higashi
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan.,Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, Kyoto 615-8520, Japan
| | - Harunobu Mitsunuma
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
| | - Motomu Kanai
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
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23
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Liu C, Li K, Shang R. Arenethiolate as a Dual Function Catalyst for Photocatalytic Defluoroalkylation and Hydrodefluorination of Trifluoromethyls. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00592] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Can Liu
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Kang Li
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Rui Shang
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
- Department of Chemistry, The University of Tokyo, Tokyo 113-0033, Japan
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24
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Cabrera-Afonso MJ, Granados A, Molander G. Sustainable Thioetherification via Electron Donor‐Acceptor Photoactivation using Thianthrenium Salts. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202706] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - Albert Granados
- University of Pennsylvania Department of Chemistry UNITED STATES
| | - Gary Molander
- University of Pennsylvania Department of Chemistry 231 South 34th Street 19104-6323 Philadelphia UNITED STATES
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25
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Long T, Pan S, Zhu S, Chu L. Catalyst‐Free Intermolecular Sulfonyl/Fluoromethyl Heteroarylation of Vinyl Ethers via Visible‐Light‐Induced Charge Transfer. Chemistry 2022; 28:e202104080. [DOI: 10.1002/chem.202104080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Indexed: 11/10/2022]
Affiliation(s)
- Tianyu Long
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Center for Advanced Low-Dimension Materials College of Chemistry Chemical Engineering and Biotechnology Donghua University Shanghai 201620 P. R. China
| | - Shiwei Pan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Center for Advanced Low-Dimension Materials College of Chemistry Chemical Engineering and Biotechnology Donghua University Shanghai 201620 P. R. China
| | - Shengqing Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Center for Advanced Low-Dimension Materials College of Chemistry Chemical Engineering and Biotechnology Donghua University Shanghai 201620 P. R. China
| | - Lingling Chu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Center for Advanced Low-Dimension Materials College of Chemistry Chemical Engineering and Biotechnology Donghua University Shanghai 201620 P. R. China
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26
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Masson G. Welcome to Volume 2 of ACS Organic & Inorganic Au. ACS ORGANIC & INORGANIC AU 2022; 2:1-2. [PMID: 36855405 PMCID: PMC9954380 DOI: 10.1021/acsorginorgau.1c00056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Bugaenko DI, Karchava AV, Yurovskaya MA. Transition metal-free cross-coupling reactions with the formation of carbon-heteroatom bonds. RUSSIAN CHEMICAL REVIEWS 2022. [DOI: 10.1070/rcr5022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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28
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Li H, Liu Y, Chiba S. Leveraging of Sulfur Anions in Photoinduced Molecular Transformations. JACS AU 2021; 1:2121-2129. [PMID: 34977884 PMCID: PMC8715496 DOI: 10.1021/jacsau.1c00363] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Indexed: 05/25/2023]
Abstract
This perspective describes recent advances in the use of sulfur anions to promote molecular transformations under irradiation with visible light. The topics are classified by the following reaction modes performed by the key sulfur anions: (1) C-S coupling via electron donor-acceptor (EDA) interactions, (2) photoinduced molecular transformation via sulfur anion EDA catalysis, (3) sulfur anions as photoredox and hydrogen atom transfer (HAT) catalysts, and 4) dithiocarbamate and xanthate as nucleophilic catalysts for photoinduced radical cascade reactions.
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Affiliation(s)
- Haoyu Li
- Division of Chemistry and
Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Yuliang Liu
- Division of Chemistry and
Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Shunsuke Chiba
- Division of Chemistry and
Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
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29
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Li T, Liang K, Tang J, Ding Y, Tong X, Xia C. Correction: A photoexcited halogen-bonded EDA complex of the thiophenolate anion with iodobenzene for C(sp 3)-H activation and thiolation. Chem Sci 2021; 12:15770. [PMID: 35006211 PMCID: PMC8654038 DOI: 10.1039/d1sc90238e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 11/05/2021] [Indexed: 11/21/2022] Open
Abstract
[This corrects the article DOI: 10.1039/D1SC03667J.].
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Affiliation(s)
- Tao Li
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research & Development of Natural Products, School of Chemical Science and Technology, Yunnan University Kunming 650091 China
| | - Kangjiang Liang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research & Development of Natural Products, School of Chemical Science and Technology, Yunnan University Kunming 650091 China
| | - Jiaying Tang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research & Development of Natural Products, School of Chemical Science and Technology, Yunnan University Kunming 650091 China
| | - Yuzhen Ding
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research & Development of Natural Products, School of Chemical Science and Technology, Yunnan University Kunming 650091 China
| | - Xiaogang Tong
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research & Development of Natural Products, School of Chemical Science and Technology, Yunnan University Kunming 650091 China
| | - Chengfeng Xia
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research & Development of Natural Products, School of Chemical Science and Technology, Yunnan University Kunming 650091 China
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30
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Uchikura T, Fujii T, Moriyama K, Akiyama T. Visible-light driven, metal-free hydroalkylation of alkenes mediated by electron donor-acceptor complex using benzothiazolines. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210322] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tatsuhiro Uchikura
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1, Mejiro, Toshima-ku, Tokyo, 171-8588
| | - Tatsuya Fujii
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1, Mejiro, Toshima-ku, Tokyo, 171-8588
| | - Kaworuko Moriyama
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1, Mejiro, Toshima-ku, Tokyo, 171-8588
| | - Takahiko Akiyama
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1, Mejiro, Toshima-ku, Tokyo, 171-8588
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31
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Cai YP, Nie FY, Song QH. Visible-Light-Mediated Alkylation of Thiophenols via Electron Donor-Acceptor Complexes Formed between Two Reactants. J Org Chem 2021; 86:12419-12426. [PMID: 34379421 DOI: 10.1021/acs.joc.1c01433] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A metal-free, photocatalyst-free, photochemical system was developed for the direct alkylation of thiophenols via electron donor-acceptor (EDA) complexes (KEDA = 145 M-1) between two reactants, N-hydroxyphthalimide esters as acceptors and thiophenol anions as donors, in the presence of a tertiary amine. The EDA complexes in the reaction system have a broad range of visible-light absorption (400-650 nm) and can trigger the reaction effectively under sunlight.
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Affiliation(s)
- Yi-Ping Cai
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Fang-Yuan Nie
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Qin-Hua Song
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
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