1
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Huang H, Luan X, Zuo Z. Cooperative Photoredox and Cobalt-Catalyzed Acceptorless Dehydrogenative Functionalization of Cyclopropylamides towards Allylic N,O-Acyl-acetal Derivatives. Angew Chem Int Ed Engl 2024; 63:e202401579. [PMID: 38609328 DOI: 10.1002/anie.202401579] [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: 01/23/2024] [Revised: 04/01/2024] [Accepted: 04/12/2024] [Indexed: 04/14/2024]
Abstract
We disclose herein a novel photoredox and cobalt co-catalyzed ring-opening/acceptorless dehydrogenative functionalization of mono-donor cyclopropanes. This sustainable and atom-economic approach allows the rapid assembly of a wide range of allylic N,O-acyl-acetal derivatives. The starting materials are readily available and the reaction features mild conditions, broad substrate scope, and excellent functional group compatibility. The optimized conditions accommodate assorted cycloalkylamides and primary, secondary, and tertiary alcohols, with applications in late-stage functionalization of pharmaceutically relevant compounds, stimulating further utility in medicinal chemistry. Moreover, selective nucleophilic substitutions with various carbon nucleophiles were achieved in a one-pot fashion, offering a reliable avenue to access some cyclic and acyclic derivatives.
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Affiliation(s)
- Haohao Huang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
| | - Xinjun Luan
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
| | - Zhijun Zuo
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
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2
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Fernandes AJ, Giri R, Houk KN, Katayev D. Review and Theoretical Analysis of Fluorinated Radicals in Direct C Ar-H Functionalization of (Hetero)arenes. Angew Chem Int Ed Engl 2024; 63:e202318377. [PMID: 38282182 DOI: 10.1002/anie.202318377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 01/30/2024]
Abstract
We highlight key contributions in the field of direct radical CAr- H (hetero)aromatic functionalization involving fluorinated radicals. A compilation of Functional Group Transfer Reagents and their diverse activation mechanisms leading to the release of radicals are discussed. The substrate scope for each radical is analyzed and classified into three categories according to the electronic properties of the substrates. Density functional theory computational analysis provides insights into the chemical reactivity of several fluorinated radicals through their electrophilicity and nucleophilicity parameters. Theoretical analysis of their reduction potentials also highlights the remarkable correlation between electrophilicity and oxidizing ability. It is also established that highly fluorinated radicals (e.g. ⋅OCF3) are capable of engaging in single-electron transfer (SET) processes rather than radical addition, which is in good agreement with experimental literature data. A reactivity scale, based on activation barrier of addition of these radicals to benzene is also elaborated using the high accuracy DLPNO-(U)CCSD(T) method.
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Affiliation(s)
- Anthony J Fernandes
- Department für Chemie und Biochemie, Universität Bern, Freiestrasse 3, 3012, Bern, Switzerland
| | - Rahul Giri
- Department für Chemie und Biochemie, Universität Bern, Freiestrasse 3, 3012, Bern, Switzerland
| | - Kendall N Houk
- Department of Chemistry and Biochemistry, University of California, 90095, Los Angeles, California, United States
| | - Dmitry Katayev
- Department für Chemie und Biochemie, Universität Bern, Freiestrasse 3, 3012, Bern, Switzerland
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3
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Long C, He Y, Guan Z. Emerging Strategies for Asymmetric Synthesis: Combining Enzyme Promiscuity and Photo‐/Electro‐redox Catalysis. ASIAN J ORG CHEM 2023. [DOI: 10.1002/ajoc.202200685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Chao‐Jiu Long
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering Southwest University Chongqing 400715 P. R. China
| | - Yan‐Hong He
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering Southwest University Chongqing 400715 P. R. China
| | - Zhi Guan
- Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering Southwest University Chongqing 400715 P. R. China
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4
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Meier A, Badalov SV, Biktagirov T, Schmidt WG, Wilhelm R. Diquat Based Dyes: A New Class of Photoredox Catalysts and Their Use in Aerobic Thiocyanation. Chemistry 2023; 29:e202203541. [PMID: 36700523 DOI: 10.1002/chem.202203541] [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: 11/14/2022] [Revised: 01/23/2023] [Accepted: 01/24/2023] [Indexed: 01/27/2023]
Abstract
A series of new organic donor-π-acceptor dyes incorporating a diquat moiety as a novel electron-acceptor unit have been synthesized and characterized. The analytical data were supported by DFT calculations. These dyes were explored in the aerobic thiocyanation of indoles and pyrroles. Here they showed a high photocatalytic activity under visible light, giving isolated yields of up to 97 %. In addition, the photocatalytic activity of standalone diquat and methyl viologen through formation of an electron donor acceptor complex is presented.
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Affiliation(s)
- Armin Meier
- Institute of Organic Chemistry, Clausthal University of Technology, Leibnizstr. 6, 38678, Clausthal-Zellerfeld, Germany
| | - Sabuhi V Badalov
- Lehrtuhl für Theoretische Materialphysik, Universität Paderborn, 33095, Paderborn, Germany
| | - Timur Biktagirov
- Lehrtuhl für Theoretische Materialphysik, Universität Paderborn, 33095, Paderborn, Germany
| | - Wolf Gero Schmidt
- Lehrtuhl für Theoretische Materialphysik, Universität Paderborn, 33095, Paderborn, Germany
| | - René Wilhelm
- Institute of Organic Chemistry, Clausthal University of Technology, Leibnizstr. 6, 38678, Clausthal-Zellerfeld, Germany
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5
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He XX, Chang HH, Zhao YX, Li XJ, Liu SA, Zang ZL, Zhou CH, Cai GX. CuCl 2 -Catalyzed α-Chloroketonation of Aromatic Alkenes via Visible-Light-Induced LMCT. Chem Asian J 2023; 18:e202200954. [PMID: 36378015 DOI: 10.1002/asia.202200954] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 11/02/2022] [Indexed: 11/17/2022]
Abstract
Here we report a copper-catalyzed protocol for the synthesis of α-chloroketones from aromatic alkenes including electron-deficient olefins under visible-light irradiation. Preliminary mechanistic studies show that the peroxo Cu(II) species is the key intermediate and hydroperoxyl (HOO⋅) and chlorine (Cl⋅) radicals can be generated by ligand-to-metal charge transfer (LMCT).
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Affiliation(s)
- Xing-Xian He
- Institute of Bioorganic & Medicinal Chemistry, School of Chemistry, Chemical Engineering, Key Laboratory of Quality and Safety Control for Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing, 400715, P. R. China
| | - Huan-Huan Chang
- Institute of Bioorganic & Medicinal Chemistry, School of Chemistry, Chemical Engineering, Key Laboratory of Quality and Safety Control for Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing, 400715, P. R. China
| | - Ying-Xue Zhao
- Institute of Bioorganic & Medicinal Chemistry, School of Chemistry, Chemical Engineering, Key Laboratory of Quality and Safety Control for Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing, 400715, P. R. China
| | - Xiang-Jie Li
- Institute of Bioorganic & Medicinal Chemistry, School of Chemistry, Chemical Engineering, Key Laboratory of Quality and Safety Control for Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing, 400715, P. R. China
| | - Sheng-An Liu
- Institute of Bioorganic & Medicinal Chemistry, School of Chemistry, Chemical Engineering, Key Laboratory of Quality and Safety Control for Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing, 400715, P. R. China
| | - Zhong-Lin Zang
- Institute of Bioorganic & Medicinal Chemistry, School of Chemistry, Chemical Engineering, Key Laboratory of Quality and Safety Control for Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing, 400715, P. R. China
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry, School of Chemistry, Chemical Engineering, Key Laboratory of Quality and Safety Control for Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing, 400715, P. R. China
| | - Gui-Xin Cai
- Institute of Bioorganic & Medicinal Chemistry, School of Chemistry, Chemical Engineering, Key Laboratory of Quality and Safety Control for Citrus Fruits, Ministry of Agriculture and Rural Affairs, Southwest University, Chongqing, 400715, P. R. China
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6
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Fanini F, Luridiana A, Mazzarella D, Ilenia Alfano A, van der Heide P, Rincón JA, García-Losada P, Mateos C, Frederick MO, Nuño M, Noël T. Flow photochemical Giese reaction via silane-mediated activation of alkyl bromides. Tetrahedron Lett 2023. [DOI: 10.1016/j.tetlet.2023.154380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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7
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Cheng YY, Hou HY, Liu Y, Yu JX, Chen B, Tung CH, Wu LZ. α-Acylation of Alkenes by a Single Photocatalyst. Angew Chem Int Ed Engl 2022; 61:e202208831. [PMID: 36202761 DOI: 10.1002/anie.202208831] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Indexed: 11/05/2022]
Abstract
A direct strategy for the difunctionalization of alkenes, with acylation occurring at the more substituted alkene position, would be attractive for complex ketone synthesis. We report herein a reaction driven by a single photocatalyst that enables α-acylation in this way with the introduction of a fluoromethyl, alkyl, sulfonyl or thioether group at the β-position of the alkene with high chemo- and regioselectivity under extremely mild conditions. Crucial to the success of this method are rate differences in the kinetics of radical generation through single-electron transfer (SET) between different radical precursors and the excited photocatalyst (PC*). Thus, the β-position of the alkene is first occupied by the group derived from the radical precursor that can be generated most readily, and α-keto acids could be used as an electrophilic reagent for the α-acylation of alkenes.
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Affiliation(s)
- Yuan-Yuan Cheng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Hong-Yu Hou
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yu Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ji-Xin Yu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Bin Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Chen-Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Li-Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing, 100190, P. R. China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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8
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Wang Q, Kong XY, Wang Y, Wang L, Huang Y, Li H, Ma T, Ye L. Metal-Free Photocatalysts for Conversion of H 2 O into Hydrogen Peroxide. CHEMSUSCHEM 2022; 15:e202201514. [PMID: 36177848 PMCID: PMC10100187 DOI: 10.1002/cssc.202201514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 09/30/2022] [Indexed: 06/16/2023]
Abstract
Hydrogen peroxide (H2 O2 ) is an important green oxidizing agent for environmental protection and chemical production. In comparison to the traditional anthraquinone method, photosynthesis is a green and energy-saving process for H2 O2 production. To improve the stability and practical application value of the H2 O2 synthesized by photocatalysis, the H2 O2 photosynthesis should be conducted in pure water without involving any sacrificial reagents. In this regard, organic semiconducting catalysts pose as a suitable candidate for photocatalytic H2 O2 synthesis owing to their metal-free nature to prevent H2 O2 decomposition by the metal ions. In this Perspective, the H2 O2 photosynthesis history is firstly introduced, followed by a review of the organic semiconductor photocatalysts reported to date. Finally, the main problems to thwart the advances of current pure H2 O-to-H2 O2 photosynthesis are discussed, followed by proposed solutions to address these issues in order to pave new ways for the development of highly efficient metal-free organic photocatalysts for sustainable pure H2 O-to-H2 O2 conversion.
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Affiliation(s)
- Qiao Wang
- College of Materials and Chemical EngineeringKey Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion MaterialsChina Three Gorges UniversityYichang443002P. R. China
| | - Xin Ying Kong
- Division of Chemistry and Biological ChemistrySchool of Chemistry, Chemical Engineering and BiotechnologyNanyang Technological University21 Nanyang Link637371Singapore
| | - Yongye Wang
- College of Materials and Chemical EngineeringKey Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion MaterialsChina Three Gorges UniversityYichang443002P. R. China
| | - Li Wang
- Engineering Research Center of Eco-environment in Three Gorges Reservoir RegionMinistry of EducationChina Three Gorges UniversityYichang443002P. R. China
| | - Yingping Huang
- Engineering Research Center of Eco-environment in Three Gorges Reservoir RegionMinistry of EducationChina Three Gorges UniversityYichang443002P. R. China
| | - Hui Li
- School of ScienceRMIT UniversityMelbourneVIC 3000Australia
| | - Tianyi Ma
- School of ScienceRMIT UniversityMelbourneVIC 3000Australia
| | - Liqun Ye
- College of Materials and Chemical EngineeringKey Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion MaterialsChina Three Gorges UniversityYichang443002P. R. China
- Engineering Research Center of Eco-environment in Three Gorges Reservoir RegionMinistry of EducationChina Three Gorges UniversityYichang443002P. R. China
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9
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Pham TT. Advances in Carbon‐Carbon Bond Activation by Using Photocatalysts: A Mini Review. ChemistrySelect 2022. [DOI: 10.1002/slct.202202679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Thuy Thanh Pham
- Department of Chemistry and Biochemistry New Mexico State University 1175 N Horseshoe Dr. Las Cruces NM 88003
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10
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Giri R, Mosiagin I, Franzoni I, Nötel NY, Patra S, Katayev D. Photoredox Activation of Anhydrides for the Solvent-Controlled Switchable Synthesis of gem-Difluoro Compounds. Angew Chem Int Ed Engl 2022; 61:e202209143. [PMID: 35997088 PMCID: PMC9826529 DOI: 10.1002/anie.202209143] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Indexed: 01/11/2023]
Abstract
The incorporation of the gem-difluoromethylene (CF2 ) group into organic frameworks is highly sought due to the influence of this unit on the physicochemical and pharmacological properties of molecules. Herein we report an operationally simple, mild, and switchable protocol to access various gem-difluoro compounds that employs chlorodifloroacetic anhydride (CDFAA) as a low-cost and versatile fluoroalkylating reagent. Detailed mechanistic studies revealed that electron-transfer photocatalysis triggers mesolytic cleavage of a C-Cl bond generating a gem-difluoroalkyl radical. In the presence of alkene, this radical species acts as a unique intermediate that, under solvent-controlled reaction conditions, delivers a wide range of gem-difluorinated γ-lactams, γ-lactones, and promotes oxy-perfluoroalkylation. These protocols are flow- and batch-scalable, possess excellent chemo- and regioselectivity, and can be used for the late-stage diversification of complex molecules.
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Affiliation(s)
- Rahul Giri
- Department of ChemistryUniversity of FribourgChemin du Musée 91700FribourgSwitzerland
| | - Ivan Mosiagin
- Department of ChemistryUniversity of FribourgChemin du Musée 91700FribourgSwitzerland
| | - Ivan Franzoni
- NuChem Sciences Inc.2350 Rue Cohen, Suite 201Saint-LaurentQuebecH4R 2N6Canada,Present address: Valence Discovery Inc.6666 Rue St-Urbain, Suite 200MontrealQuebecH2S 3H1Canada
| | - Nicolas Yannick Nötel
- Department of Chemistry and Applied BiosciencesSwiss Federal Institute of Technology, ETH ZürichVladimir-Prelog-Weg8093ZürichSwitzerland
| | - Subrata Patra
- Department of ChemistryUniversity of FribourgChemin du Musée 91700FribourgSwitzerland
| | - Dmitry Katayev
- Department of ChemistryUniversity of FribourgChemin du Musée 91700FribourgSwitzerland
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11
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Strauch C, Schroeder S, Grelier G, Niggemann M. Homolytic N-S Bond Cleavage in Vinyl Triflimides Enabled by Triplet-Triplet Energy Transfer. Chemistry 2022; 28:e202201830. [PMID: 35793203 DOI: 10.1002/chem.202201830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Indexed: 01/07/2023]
Abstract
Vinyl triflimides are a new compound class with unknown reactivity. A computational analysis identified homolytic cleavage of the N-Tf bond induced by triplet-triplet energy transfer (EnT) as a highly interesting reaction type that might be accessible. A combination of experimental and mechanistic work verified this hypothesis and proved the generated radicals to be amenable to radical-radical coupling. Thereby, vinyl triflimides were transformed into a range of α-quaternary, β-trifluoromethylated amines in a 1,2-difunctionalization reaction with no need for external CF3 reagents.
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Affiliation(s)
- Christina Strauch
- Institute of Organic Chemistry, RWTH Aachen, Landoltweg 1, 52074, Aachen, Germany
| | - Sebastian Schroeder
- Institute of Organic Chemistry, RWTH Aachen, Landoltweg 1, 52074, Aachen, Germany
| | - Gwendal Grelier
- Institute of Organic Chemistry, RWTH Aachen, Landoltweg 1, 52074, Aachen, Germany
| | - Meike Niggemann
- Institute of Organic Chemistry, RWTH Aachen, Landoltweg 1, 52074, Aachen, Germany
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12
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Zhang Q, Jin Y, Ma L, Zhang Y, Meng C, Duan C. Chromophore‐Inspired Design of Pyridinium‐Based Metal–Organic Polymers for Dual Photoredox Catalysis. Angew Chem Int Ed Engl 2022; 61:e202204918. [DOI: 10.1002/anie.202204918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Qingqing Zhang
- State Key Laboratory of Fine Chemicals Zhang Dayu School of Chemistry Dalian University of Technology Dalian 116024 China
| | - Yunhe Jin
- State Key Laboratory of Fine Chemicals Zhang Dayu School of Chemistry Dalian University of Technology Dalian 116024 China
| | - Lin Ma
- State Key Laboratory of Fine Chemicals Zhang Dayu School of Chemistry Dalian University of Technology Dalian 116024 China
| | - Yongqiang Zhang
- State Key Laboratory of Fine Chemicals Zhang Dayu School of Chemistry Dalian University of Technology Dalian 116024 China
| | - Changgong Meng
- State Key Laboratory of Fine Chemicals Zhang Dayu School of Chemistry Dalian University of Technology Dalian 116024 China
| | - Chunying Duan
- State Key Laboratory of Fine Chemicals Zhang Dayu School of Chemistry Dalian University of Technology Dalian 116024 China
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13
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Saha A, Ghosh A, Guin S, Panda S, Mal DK, Majumdar A, Akita M, Maiti D. Substrate‐Rhodium Cooperativity in Photoinduced
ortho
‐Alkynylation of Arenes. Angew Chem Int Ed Engl 2022; 61:e202210492. [DOI: 10.1002/anie.202210492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Argha Saha
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Animesh Ghosh
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Srimanta Guin
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Sanjib Panda
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Dibya Kanti Mal
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Abhirup Majumdar
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Munetaka Akita
- Tokyo Tech World Research Hub Initiative (WRHI) Laboratory for Chemistry and Life Science Tokyo Institute of Technology Tokyo Japan
| | - Debabrata Maiti
- Department of Chemistry Indian Institute of Technology Bombay Powai Mumbai 400076 India
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14
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Xu W, Chao J, Tang B, Li Z, Xu J, Zhang X. Improving Photocatalytic Performance through the Construction of a Supramolecular Organic Framework. Chemistry 2022; 28:e202202200. [DOI: 10.1002/chem.202202200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Weiquan Xu
- Key Lab of Organic Optoelectronics & Molecular Engineering Department of Chemistry Tsinghua University Beijing 100084 China
| | - Jin‐Yu Chao
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Department of Chemistry Fudan University Shanghai 200438 China
| | - Bohan Tang
- Key Lab of Organic Optoelectronics & Molecular Engineering Department of Chemistry Tsinghua University Beijing 100084 China
| | - Zhan‐Ting Li
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Department of Chemistry Fudan University Shanghai 200438 China
| | - Jiang‐Fei Xu
- Key Lab of Organic Optoelectronics & Molecular Engineering Department of Chemistry Tsinghua University Beijing 100084 China
| | - Xi Zhang
- Key Lab of Organic Optoelectronics & Molecular Engineering Department of Chemistry Tsinghua University Beijing 100084 China
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15
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Tsutsui Y, Tanaka D, Manabe Y, Ikinaga Y, Yano K, Fukase K, Konishi A, Yasuda M. Synthesis of Cage‐Shaped Borates Bearing Pyrenylmethyl Groups: Efficient Lewis Acid Catalyst for Photoactivated Glycosylations Driven by Intramolecular Excimer Formation. Chemistry 2022; 28:e202202284. [DOI: 10.1002/chem.202202284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Yuya Tsutsui
- Department of Applied Chemistry Graduate School of Engineering Osaka University 2-1 Yamadaoka Suita Osaka 565-0871 Japan
| | - Daiki Tanaka
- Department of Applied Chemistry Graduate School of Engineering Osaka University 2-1 Yamadaoka Suita Osaka 565-0871 Japan
| | - Yoshiyuki Manabe
- Department of Chemistry Graduate School of Science Osaka University 1-1 Machikaneyama Toyonaka Osaka 560-0043 Japan
- Forefront Research Center Osaka University 1-1 Machikaneyama Toyonaka Osaka 560-0043 Japan
| | - Yuka Ikinaga
- Department of Chemistry Graduate School of Science Osaka University 1-1 Machikaneyama Toyonaka Osaka 560-0043 Japan
| | - Kumpei Yano
- Department of Chemistry Graduate School of Science Osaka University 1-1 Machikaneyama Toyonaka Osaka 560-0043 Japan
| | - Koichi Fukase
- Department of Chemistry Graduate School of Science Osaka University 1-1 Machikaneyama Toyonaka Osaka 560-0043 Japan
- Forefront Research Center Osaka University 1-1 Machikaneyama Toyonaka Osaka 560-0043 Japan
| | - Akihito Konishi
- Department of Applied Chemistry Graduate School of Engineering Osaka University 2-1 Yamadaoka Suita Osaka 565-0871 Japan
- Innovative Catalysis Science Division Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI) Osaka University Suita Osaka 565-0871 Japan
- Center for Atomic and Molecular Technologies Graduate School of Engineering Osaka University 2-1 Yamadaoka Suita Osaka 565-0871 Japan
| | - Makoto Yasuda
- Department of Applied Chemistry Graduate School of Engineering Osaka University 2-1 Yamadaoka Suita Osaka 565-0871 Japan
- Innovative Catalysis Science Division Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI) Osaka University Suita Osaka 565-0871 Japan
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16
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Saha A, Ghosh A, Guin S, Panda S, Mal DK, Majumdar A, Akita M, Maiti D. Substrate‐Rhodium Cooperativity in Photoinduced ortho‐Alkynylation of Arenes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202210492] [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)
- Argha Saha
- IIT Bombay: Indian Institute of Technology Bombay CHEMISTRY INDIA
| | - Animesh Ghosh
- IIT Bombay: Indian Institute of Technology Bombay CHEMISTRY INDIA
| | - Srimanta Guin
- IIT Bombay: Indian Institute of Technology Bombay CHEMISTRY INDIA
| | - Sanjib Panda
- Indian Institute of Technology Bombay CHEMISTRY INDIA
| | - Dibya Kanti Mal
- IIT Bombay: Indian Institute of Technology Bombay CHEMISTRY INDIA
| | - Abhirup Majumdar
- IIT Bombay: Indian Institute of Technology Bombay CHEMISTRY INDIA
| | - Munetaka Akita
- Tokyo Institute of Technology Chemistry and Life Science JAPAN
| | - Debabrata Maiti
- Indian Institute of Technology-Bombay Department of Chemistry Powai 400076 Mumbai INDIA
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17
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Giri R, Mosiagin I, Franzoni I, Nötel NY, Patra S, Katayev D. Photoredox Activation of Anhydrides for the Solvent‐Controlled Switchable Synthesis of gem‐Difluoro Compounds. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Rahul Giri
- University of Fribourg: Universite de Fribourg Chemistry Department Chemin du Musée 9 1700 Fribourg SWITZERLAND
| | - Ivan Mosiagin
- University of Fribourg: Universite de Fribourg Chemistry Department Chemin du Musée9 1700 Fribourg SWITZERLAND
| | - Ivan Franzoni
- Valence Discovery Inc. Research Department 6666 Rue St-Urbain, Suite 200Montreal H2S 3H1 Quebec CANADA
| | - Nicolas Yannick Nötel
- Swiss Federal Institute of Technology Zurich: Eidgenossische Technische Hochschule Zurich Department of Chemistry and Applied Biosciences Vladimir-Prelog-Weg 1-5/10 8093 Zürich SWITZERLAND
| | - Subrata Patra
- University of Fribourg: Universite de Fribourg Chemistry Department Chemin du Musée9 1700 Fribourg SWITZERLAND
| | - Dmitry Katayev
- University of Fribourg: Universite de Fribourg Department of Chemistry Chemin du Musée 9 1700 Fribourg SWITZERLAND
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18
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Jakobi M, Zilate B, Sparr C. Synthesis of Diarylaminoacridinium Photocatalysts by Halogen‐Metal Exchange Combined with Directed <i>ortho</i> Metalations. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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19
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Pavlovska T, Král Lesný D, Svobodová E, Hoskovcová I, Archipowa N, Kutta RJ, Cibulka R. Tuning Deazaflavins Towards Highly Potent Reducing Photocatalysts Guided by Mechanistic Understanding – Enhancement of the Key Step by the Internal Heavy Atom Effect. Chemistry 2022; 28:e202200768. [PMID: 35538649 PMCID: PMC9541856 DOI: 10.1002/chem.202200768] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Indexed: 11/11/2022]
Abstract
Deazaflavins are well suited for reductive chemistry acting via a consecutive photo‐induced electron transfer, in which their triplet state and semiquinone – the latter is formed from the former after electron transfer from a sacrificial electron donor – are key intermediates. Guided by mechanistic investigations aiming to increase intersystem crossing by the internal heavy atom effect and optimising the concentration conditions to avoid unproductive excited singlet reactions, we synthesised 5‐aryldeazaflavins with Br or Cl substituents on different structural positions via a three‐component reaction. Bromination of the deazaisoalloxazine core leads to almost 100 % triplet yield but causes photo‐instability and enhances unproductive side reactions. Bromine on the 5‐phenyl group in ortho position does not affect the photostability, increases the triplet yield, and allows its efficient usage in the photocatalytic dehalogenation of bromo‐ and chloroarenes with electron‐donating methoxy and alkyl groups even under aerobic conditions. Reductive powers comparable to lithium are achieved.
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Affiliation(s)
- Tetiana Pavlovska
- Department of Organic Chemistry University of Chemistry and Technology, Prague Technická 5 166 28 Prague 6 Czech Republic
| | - David Král Lesný
- Department of Organic Chemistry University of Chemistry and Technology, Prague Technická 5 166 28 Prague 6 Czech Republic
| | - Eva Svobodová
- Department of Organic Chemistry University of Chemistry and Technology, Prague Technická 5 166 28 Prague 6 Czech Republic
| | - Irena Hoskovcová
- Department of Inorganic Chemistry University of Chemistry and Technology, Prague Technická 5 166 28 Prague 6 Czech Republic
| | - Nataliya Archipowa
- Institute for Biophysics and Physical Biochemistry University of Regensburg D-93053 Regensburg Germany
| | - Roger Jan Kutta
- Institute of Physical and Theoretical Chemistry University of Regensburg D-93053 Regensburg Germany
| | - Radek Cibulka
- Department of Organic Chemistry University of Chemistry and Technology, Prague Technická 5 166 28 Prague 6 Czech Republic
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20
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Ziegenbalg D, Pannwitz A, Rau S, Dietzek‐Ivanšić B, Streb C. Comparative Evaluation of Light‐Driven Catalysis: A Framework for Standardized Reporting of Data**. Angew Chem Int Ed Engl 2022; 61:e202114106. [PMID: 35698245 PMCID: PMC9401044 DOI: 10.1002/anie.202114106] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Indexed: 01/05/2023]
Affiliation(s)
- Dirk Ziegenbalg
- Institute of Chemical Engineering Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Andrea Pannwitz
- Institute of Inorganic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Sven Rau
- Institute of Inorganic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Benjamin Dietzek‐Ivanšić
- Institute of Physical Chemistry and Center of Energy and Environmental Chemistry Jena (CEEC Jena) Friedrich Schiller University Jena Helmholtzweg 4 07743 Jena Germany
- Department Functional Interfaces Leibniz Institute of Photonic Technology Jena (IPHT) Albert-Einstein-Straße 9 07745 Jena Germany
| | - Carsten Streb
- Institute of Inorganic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
- Department of Chemistry Johannes Gutenberg University Mainz Duesbergweg 10-14 55128 Mainz Germany
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21
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Hartley WC, Schiel F, Ermini E, Melchiorre P. Lewis Base‐Catalysed Enantioselective Radical Conjugate Addition for the Synthesis of Enantioenriched Pyrrolidinones. Angew Chem Int Ed Engl 2022; 61:e202204735. [DOI: 10.1002/anie.202204735] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Indexed: 12/15/2022]
Affiliation(s)
- Will C. Hartley
- ICIQ—Institute of Chemical Research of Catalonia the Barcelona Institute of Science and Technology Avenida Països Catalans 16 43007 Tarragona Spain
| | | | - Elena Ermini
- ICIQ—Institute of Chemical Research of Catalonia the Barcelona Institute of Science and Technology Avenida Països Catalans 16 43007 Tarragona Spain
| | - Paolo Melchiorre
- ICREA— Passeig Lluís Companys 23 08010 Barcelona Spain
- ICIQ—Institute of Chemical Research of Catalonia the Barcelona Institute of Science and Technology Avenida Països Catalans 16 43007 Tarragona Spain
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22
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Ziegenbalg D, Pannwitz A, Rau S, Dietzek‐Ivanšić B, Streb C. Vergleichende Evaluierung lichtgetriebener Katalyse: Ein Rahmenkonzept für das standardisierte Berichten von Daten**. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202114106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dirk Ziegenbalg
- Institut für Chemieingenieurwesen Universität Ulm Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Andrea Pannwitz
- Institut für Anorganische Chemie I Universität Ulm Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Sven Rau
- Institut für Anorganische Chemie I Universität Ulm Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Benjamin Dietzek‐Ivanšić
- Institut für Physikalische Chemie und Center of Energy and Environmental Chemistry Jena (CEEC Jena) Friedrich-Schiller-Universität Jena Helmholtzweg 4 07743 Jena Deutschland
- Department Funktionale Grenzflächen Leibniz-Institut für Photonische Technologien Jena (IPHT) Albert-Einstein-Straße 9 07745 Jena Deutschland
| | - Carsten Streb
- Institut für Anorganische Chemie I Universität Ulm Albert-Einstein-Allee 11 89081 Ulm Deutschland
- Department of Chemistry Johannes Gutenberg University Mainz Duesbergweg 10-14 55128 Mainz Germany
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23
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Chromophore‐inspired Design of Pyridinium‐based Metal‐Organic Polymers for Dual Photoredox Catalysis. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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24
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Fan Z, Yi Y, Xi C. Recent Advances in Light‐Induced Carboxylation of Organic (Pseudo)Halides with CO2. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200207] [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)
| | - Yaping Yi
- Tsinghua University Chemistry 100084 Beijing CHINA
| | - Chanjuan Xi
- Tsinghua University Department of Chemistry zhongguancui 100084 Beijing CHINA
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25
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Li X, Fan J, Cui D, Yan H, Shan S, Lu Y, Cheng X, Loh TP. Catalyst‐ and metal‐free photo‐oxidative coupling of thiols with BrCCl3. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200340] [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)
- Xiaoman Li
- Nanjing Tech University Institute of Advanced Synthesis CHINA
| | - Jiali Fan
- Nanjing Tech University Institute of Advanced Synthesis CHINA
| | - Dezhi Cui
- Nanjing Tech University Institute of Advanced Synthesis CHINA
| | - Hui Yan
- Nanjing Tech University Institute of Advanced Synthesis CHINA
| | - Shiquan Shan
- Nanjing Tech University Institute of Advanced Synthesis CHINA
| | - Yongna Lu
- Nanjing Tech University Institute of Advanced Synthesis CHINA
| | - Xiamin Cheng
- Nanjing Tech University Institute of Advanced Synthesis 30 South Puzhu Road 211816 Nanjing CHINA
| | - Teck-peng Loh
- Nanyang Technological University Division of Chemistry and Biological Chemistry SINGAPORE
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26
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Pillitteri S, Ranjan P, Van der Eycken EV, Sharma UK. Uncovering the Potential of Boronic Acid and Derivatives as Radical Source in Photo(electro)chemical Reactions. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200204] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Serena Pillitteri
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC) Department of Chemistry University of Leuven (KU Leuven) Celestijnenlaan 200F B-3001 Leuven Belgium
| | - Prabhat Ranjan
- Aachen Maastricht Institute for Biobased Materials (AMIBM) Maastricht University Urmonderbaan 22 6167 RD Geleen The Netherlands
| | - Erik V. Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC) Department of Chemistry University of Leuven (KU Leuven) Celestijnenlaan 200F B-3001 Leuven Belgium
- Peoples' Friendship University of Russia (RUDN University) Miklukho-Maklaya street 6 RU-117198 Moscow Russia
| | - Upendra K. Sharma
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC) Department of Chemistry University of Leuven (KU Leuven) Celestijnenlaan 200F B-3001 Leuven Belgium
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27
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Affiliation(s)
- Giulio Goti
- Università degli Studi di Padova Dipartimento di Scienze Chimiche via Francesco Marzolo, 1 35131 Padova ITALY
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28
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Hartley WC, Schiel F, Ermini E, Melchiorre P. Lewis Base‐Catalysed Enantioselective Radical Conjugate Addition for the Synthesis of Enantioenriched Pyrrolidinones. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Will C. Hartley
- ICIQ: Institut Catala d'Investigacio Quimica Iciq 43007 Tarragona SPAIN
| | - Florian Schiel
- ICIQ: Institut Catala d'Investigacio Quimica Iciq 43007 Tarragona SPAIN
| | - Elena Ermini
- ICIQ: Institut Catala d'Investigacio Quimica iciq 43007 Tarragona SPAIN
| | - Paolo Melchiorre
- Institute of Chemical Research of Catalonia (ICIQ) ICIQ Av. Països Catalans 16 43007 Tarragona SPAIN
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29
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Ye J, Bellotti P, Heusel C, Glorius F. Photoredox‐katalysierte defluorierende Funktionalisierungen von polyfluorierten aliphatischen Amiden und Estern. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jian‐Heng Ye
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Peter Bellotti
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Corinna Heusel
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Frank Glorius
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
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30
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Ye JH, Bellotti P, Heusel C, Glorius F. Photoredox-Catalyzed Defluorinative Functionalizations of Polyfluorinated Aliphatic Amides and Esters. Angew Chem Int Ed Engl 2021; 61:e202115456. [PMID: 34890107 DOI: 10.1002/anie.202115456] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Indexed: 11/08/2022]
Abstract
Selective C-F bond functionalization of perfluoalkyl units has huge potential towards accessing functionalized organofluorinated compounds, but remains chanllenging due to the high C-F bond strength and inherent selectivity challenges. We report a new catalytic approach for the selective functionalization of the strong C-F bonds in polyfluorinated aliphatic esters and amides. This simple reaction proceeds in mild and operationally fashion with divergent conversions, including hydrodefluorination, defluoroalkylation, and defluoroalkenlylation, affording a diverse array of important partially fluorinated motifs. Straightforward downstream chemistry towards fluorinated alcohols, amines and drug derivatives highlights the potential of the protocol.
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Affiliation(s)
- Jian-Heng Ye
- Westfälische Wilhelms-Universität Münster: Westfalische Wilhelms-Universitat Munster, Chemistry, GERMANY
| | - Peter Bellotti
- Westfälische Wilhelms-Universität Münster: Westfalische Wilhelms-Universitat Munster, Chemistry, GERMANY
| | - Corinna Heusel
- Westfälische Wilhelms-Universität Münster: Westfalische Wilhelms-Universitat Munster, Chemistry, GERMANY
| | - Frank Glorius
- Westfälische Wilhelms-Universität Münster: Westfalische Wilhelms-Universitat Munster, Organisch-Chemisches Institut, Corrensstrasse 40, 48149, Münster, GERMANY
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31
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Das S, Mandal T, De Sarkar S. Acridine Orange Hemi(Zinc Chloride) Salt as a Lewis Acid‐Photoredox Hybrid Catalyst for the Generation of
α
‐Carbonyl Radicals. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101053] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Sanju Das
- Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata Mohanpur 741246 West Bengal India
| | - Tanumoy Mandal
- Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata Mohanpur 741246 West Bengal India
| | - Suman De Sarkar
- Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata Mohanpur 741246 West Bengal India
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32
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Mandal T, Azim A, Das S, De Sarkar S. Organophotoredox Catalyzed Stereoselective Nitration of Olefins with
tert
‐Butyl Nitrite under Air. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Tanumoy Mandal
- Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata Mohanpur 741246 India
| | - Aznur Azim
- Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata Mohanpur 741246 India
| | - Sanju Das
- Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata Mohanpur 741246 India
| | - Suman De Sarkar
- Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata Mohanpur 741246 India
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33
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Rothfelder R, Streitferdt V, Lennert U, Cammarata J, Scott DJ, Zeitler K, Gschwind RM, Wolf R. Photocatalytic Arylation of P 4 and PH 3 : Reaction Development Through Mechanistic Insight. Angew Chem Int Ed Engl 2021; 60:24650-24658. [PMID: 34473879 PMCID: PMC8596700 DOI: 10.1002/anie.202110619] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Indexed: 01/25/2023]
Abstract
Detailed 31 P{1 H} NMR spectroscopic investigations provide deeper insight into the complex, multi-step mechanisms involved in the recently reported photocatalytic arylation of white phosphorus (P4 ). Specifically, these studies have identified a number of previously unrecognized side products, which arise from an unexpected non-innocent behavior of the commonly employed terminal reductant Et3 N. The different rate of formation of these products explains discrepancies in the performance of the two most effective catalysts, [Ir(dtbbpy)(ppy)2 ][PF6 ] (dtbbpy=4,4'-di-tert-butyl-2,2'-bipyridine) and 3DPAFIPN. Inspired by the observation of PH3 as a minor intermediate, we have developed the first catalytic procedure for the arylation of this key industrial compound. Similar to P4 arylation, this method affords valuable triarylphosphines or tetraarylphosphonium salts depending on the steric profile of the aryl substituents.
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Affiliation(s)
- Robin Rothfelder
- Institute of Inorganic ChemistryUniversity of Regensburg93040RegensburgGermany
| | - Verena Streitferdt
- Institute of Organic ChemistryUniversity of Regensburg93040RegensburgGermany
| | - Ulrich Lennert
- Institute of Inorganic ChemistryUniversity of Regensburg93040RegensburgGermany
| | - Jose Cammarata
- Institute of Inorganic ChemistryUniversity of Regensburg93040RegensburgGermany
| | - Daniel J. Scott
- Institute of Inorganic ChemistryUniversity of Regensburg93040RegensburgGermany
| | - Kirsten Zeitler
- Institute of Organic ChemistryUniversity of Leipzig04103LeipzigGermany
| | - Ruth M. Gschwind
- Institute of Organic ChemistryUniversity of Regensburg93040RegensburgGermany
| | - Robert Wolf
- Institute of Inorganic ChemistryUniversity of Regensburg93040RegensburgGermany
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34
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Zippel C, Israil R, Schüssler L, Hassan Z, Schneider EK, Weis P, Nieger M, Bizzarri C, Kappes MM, Riehn C, Diller R, Bräse S. Metal-to-Metal Distance Modulated Au(I)/Ru(II) Cyclophanyl Complexes: Cooperative Effects in Photoredox Catalysis. Chemistry 2021; 27:15187-15200. [PMID: 34655123 PMCID: PMC8596992 DOI: 10.1002/chem.202102341] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Indexed: 12/13/2022]
Abstract
The modular synthesis of Au(I)/Ru(II) decorated mono- and heterobimetallic complexes with π-conjugated [2.2]paracyclophane is described. [2.2]Paracyclophane serves as a rigid spacer which holds the metal centers in precise spatial orientations and allows metal-to-metal distance modulation. A broad set of architectural arrangements of pseudo -geminal, -ortho, -meta, and -para substitution patterns were employed. Metal-to-metal distance modulation of Au(I)/Ru(II) heterobimetallic complexes and the innate transannular π-communication of the cyclophanyl scaffold provides a promising platform for the investigations of structure-activity relationship and cooperative effects. The Au(I)/Ru(II) heterobimetallic cyclophanyl complexes are stable, easily accessible, and exhibit promising catalytic activity in the visible-light promoted arylative Meyer-Schuster rearrangement.
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Affiliation(s)
- Christoph Zippel
- Institute of Organic Chemistry (IOC)Karlsruhe Institute of Technology (KIT)Fritz-Haber-Weg 676131KarlsruheGermany
| | - Roumany Israil
- Department of Chemistry, Technische Universität Kaiserslautern (TUK)Erwin-Schrödinger-Str. 5267663KaiserslauternGermany
| | - Lars Schüssler
- Department of Physics, Technische Universität Kaiserslautern (TUK)Erwin-Schrödinger-Str. 4667663KaiserslauternGermany
| | - Zahid Hassan
- Institute of Organic Chemistry (IOC)Karlsruhe Institute of Technology (KIT)Fritz-Haber-Weg 676131KarlsruheGermany
| | - Erik K. Schneider
- Institute of Physical ChemistryKarlsruhe Institute of Technology (KIT)Fritz-Haber Weg 276131KarlsruheGermany
| | - Patrick Weis
- Institute of Physical ChemistryKarlsruhe Institute of Technology (KIT)Fritz-Haber Weg 276131KarlsruheGermany
| | - Martin Nieger
- Department of ChemistryUniversity of HelsinkiP. O. Box 55Helsinki00014Finland
| | - Claudia Bizzarri
- Institute of Organic Chemistry (IOC)Karlsruhe Institute of Technology (KIT)Fritz-Haber-Weg 676131KarlsruheGermany
| | - Manfred M. Kappes
- Institute of Physical ChemistryKarlsruhe Institute of Technology (KIT)Fritz-Haber Weg 276131KarlsruheGermany
- Institute of NanotechnologyKarlsruhe Institute of TechnologyHerman-von Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
| | - Christoph Riehn
- Department of Chemistry, Technische Universität Kaiserslautern (TUK)Erwin-Schrödinger-Str. 5267663KaiserslauternGermany
- Research Center OPTIMASErwin-Schrödinger-Str. 4667663KaiserslauternGermany
| | - Rolf Diller
- Department of Physics, Technische Universität Kaiserslautern (TUK)Erwin-Schrödinger-Str. 4667663KaiserslauternGermany
| | - Stefan Bräse
- Institute of Organic Chemistry (IOC)Karlsruhe Institute of Technology (KIT)Fritz-Haber-Weg 676131KarlsruheGermany
- Institute of Biological and Chemical SystemsFunctional Molecular Systems (IBCS-FMS) Karlsruhe Institute of Technology (KIT)Hermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
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35
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Rothfelder R, Streitferdt V, Lennert U, Cammarata J, Scott DJ, Zeitler K, Gschwind RM, Wolf R. Photocatalytic Arylation of P
4
and PH
3
: Reaction Development Through Mechanistic Insight. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202110619] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Robin Rothfelder
- Institute of Inorganic Chemistry University of Regensburg 93040 Regensburg Germany
| | - Verena Streitferdt
- Institute of Organic Chemistry University of Regensburg 93040 Regensburg Germany
| | - Ulrich Lennert
- Institute of Inorganic Chemistry University of Regensburg 93040 Regensburg Germany
| | - Jose Cammarata
- Institute of Inorganic Chemistry University of Regensburg 93040 Regensburg Germany
| | - Daniel J. Scott
- Institute of Inorganic Chemistry University of Regensburg 93040 Regensburg Germany
| | - Kirsten Zeitler
- Institute of Organic Chemistry University of Leipzig 04103 Leipzig Germany
| | - Ruth M. Gschwind
- Institute of Organic Chemistry University of Regensburg 93040 Regensburg Germany
| | - Robert Wolf
- Institute of Inorganic Chemistry University of Regensburg 93040 Regensburg Germany
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36
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Tlili A, Lakhdar S. Acridinium Salts and Cyanoarenes as Powerful Photocatalysts: Opportunities in Organic Synthesis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102262] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Anis Tlili
- Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246) Univ Lyon, Université Lyon 1 CNRS CPE-Lyon INSA 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
| | - Sami Lakhdar
- CNRS/Université Toulouse III—Paul Sabatier Laboratoire Hétérochimie Fondamentale et Appliquée LHFA UMR 5069 118 Route de Narbonne 31062 Toulouse Cedex 09 France
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37
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Tlili A, Lakhdar S. Acridinium Salts and Cyanoarenes as Powerful Photocatalysts: Opportunities in Organic Synthesis. Angew Chem Int Ed Engl 2021; 60:19526-19549. [PMID: 33881207 DOI: 10.1002/anie.202102262] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 04/16/2021] [Indexed: 01/18/2023]
Abstract
The use of organic photocatalysts has revolutionized the field of photoredox catalysis, as it allows access to reactivities that were traditionally restricted to transition-metal photocatalysts. This Minireview reports recent developments in the use of acridinium ions and cyanoarene derivatives in organic synthesis. The activation of inert chemical bonds as well as the late-stage functionalization of biorelevant molecules are discussed, with a special focus on their mechanistic aspects.
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Affiliation(s)
- Anis Tlili
- Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246), Univ Lyon, Université Lyon 1, CNRS, CPE-Lyon, INSA, 43 Bd du 11 Novembre 1918, 69622, Villeurbanne, France
| | - Sami Lakhdar
- CNRS/Université Toulouse III-Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée, LHFA UMR 5069, 118 Route de Narbonne, 31062, Toulouse Cedex 09, France
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38
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Toriumi N, Yamashita K, Iwasawa N. Metal-Free Photoredox-Catalyzed Hydrodefluorination of Fluoroarenes Utilizing Amide Solvent as Reductant. Chemistry 2021; 27:12635-12641. [PMID: 34190366 DOI: 10.1002/chem.202101813] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Indexed: 12/15/2022]
Abstract
A metal-free photoredox-catalyzed hydrodefluorination of fluoroarenes was achieved by using N,N,N',N'-tetramethyl-para-phenylenediamine (1) as a strong photoreduction catalyst. This reaction was applicable not only to electron-rich monofluoroarenes but also to polyfluoroarenes to afford non-fluorinated arenes. The experimental mechanistic studies indicated that the amide solvent NMP plays an important role for regeneration of the photocatalyst, enabling additive-free photoreduction catalysis.
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Affiliation(s)
- Naoyuki Toriumi
- Department of Chemistry, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Kazuya Yamashita
- Department of Chemistry, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Nobuharu Iwasawa
- Department of Chemistry, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8551, Japan
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39
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Reiß B, Hu Q, Riedle E, Wagenknecht H. The Dependence of Chemical Quantum Yields of Visible Light Photoredox Catalysis on the Irradiation Power. CHEMPHOTOCHEM 2021. [DOI: 10.1002/cptc.202100090] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Barbara Reiß
- Institute of Organic Chemistry Karlsruhe Institute of Technology (KIT) Fritz-Haber-Weg 6 76131 Karlsruhe Germany
| | - Qi Hu
- Lehrstuhl für BioMolekulare Optik Ludwig-Maximilians-Universität (LMU) Oettingenstraße 67 80538 München Germany
| | - Eberhard Riedle
- Lehrstuhl für BioMolekulare Optik Ludwig-Maximilians-Universität (LMU) Oettingenstraße 67 80538 München Germany
| | - Hans‐Achim Wagenknecht
- Institute of Organic Chemistry Karlsruhe Institute of Technology (KIT) Fritz-Haber-Weg 6 76131 Karlsruhe Germany
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40
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Bartolomei B, Gentile G, Rosso C, Filippini G, Prato M. Turning the Light on Phenols: New Opportunities in Organic Synthesis. Chemistry 2021; 27:16062-16070. [PMID: 34339553 DOI: 10.1002/chem.202102276] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Indexed: 11/09/2022]
Abstract
Phenols ( I ) are extremely relevant chemical functionalities in natural, synthetic and industrial chemistry. Their corresponding electron-rich anions, namely phenolates ( I ), are characterized by interesting physicochemical properties that can be drastically altered upon light excitation. Specifically, phenolates ( I ) become strong reducing agents in the excited state and are able to generate reactive radicals from suitable precursors via single-electron transfer processes. Thus, these species can photochemically trigger strategic bond-forming reactions, including their direct aromatic C-H functionalization. Moreover, substituted phenolate anions can act as photocatalysts to enable synthetically useful organic transformations. An alternative mechanistic manifold is represented by the ability of phenolate derivatives I to form ground state electron donor-acceptor (EDA) complexes with electron-poor radical sources. These complementary scenarios have paved the way for the development of a wide range of relevant organic reactions. In this Minireview, we present the main examples of this research field, and give insight on emerging trends in phenols photocatalysis towards richer organic synthesis.
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Affiliation(s)
- Beatrice Bartolomei
- University of Trieste Department of Chemical and Pharmaceutical Sciences: Universita degli Studi di Trieste Dipartimento di Scienze Chimiche e Farmaceutiche, Chemical and Pharmaceutical Sciences, ITALY
| | - Giuseppe Gentile
- University of Trieste, Chemical and Pharmaceutical Sciences, ITALY
| | - Cristian Rosso
- University of Trieste, Chemical and Pharmaceutical Sciences, ITALY
| | | | - Maurizio Prato
- Università di Trieste, Dipartimento di Scienze Chimiche e Farmaceutiche, Piazzale Europa 1, 34127, Trieste, ITALY
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41
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Sicignano M, Rodríguez RI, Alemán J. Recent Visible Light and Metal Free Strategies in [2+2] and [4+2] Photocycloadditions. European J Org Chem 2021; 2021:3303-3321. [PMID: 34248414 PMCID: PMC8252406 DOI: 10.1002/ejoc.202100518] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 05/17/2021] [Indexed: 01/17/2023]
Abstract
When aiming to synthesize molecules with elevated molecular complexity starting from relatively simple starting materials, photochemical transformations represent an open avenue to circumvent analogous multistep procedures. Specifically, light-mediated cycloadditions remain as powerful tools to generate new bonds begotten from non-very intuitive disconnections, that alternative thermal protocols would not offer. In response to the current trend in both industrial and academic research pointing towards green and sustainable processes, several strategies that meet these requirements are currently available in the literature. This Minireview summarizes [2+2] and [4+2] photocycloadditions that do not require the use of metal photocatalysts by means of alternative strategies. It is segmented according to the cycloaddition type in order to give the reader a friendly approach and we primarily focus on the most recent developments in the field carried out using visible light, a general overview of the mechanism in each case is offered as well.
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Affiliation(s)
- Marina Sicignano
- Organic Chemistry DepartmentMódulo 1Universidad Autónoma de Madrid28049MadridSpain
| | - Ricardo I. Rodríguez
- Organic Chemistry DepartmentMódulo 1Universidad Autónoma de Madrid28049MadridSpain
| | - José Alemán
- Organic Chemistry DepartmentMódulo 1Universidad Autónoma de Madrid28049MadridSpain
- Institute for Advanced Research in Chemical Sciences (IAdChem)Universidad Autónoma de Madrid28049MadridSpain
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42
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Vellakkaran M, Hong S. Visible‐light‐induced Reactions Driven by Photochemical Activity of Quinolinone and Coumarin Scaffolds. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100162] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mari Vellakkaran
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) 34141 Daejeon Korea
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) 34141 Daejeon Korea
| | - Sungwoo Hong
- Center for Catalytic Hydrocarbon Functionalizations Institute for Basic Science (IBS) 34141 Daejeon Korea
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) 34141 Daejeon Korea
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43
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Qiao J, Zhao W, Liang Y, Yao ZJ, Wang S. Diastereoselective Access to Tetracyclic Eight-Membered Lactams through a Dearomative Heck Reaction and an Alkylative Ring-Opening Driven by Photoexcited Spiroindolines. Chemistry 2021; 27:6308-6314. [PMID: 33506517 DOI: 10.1002/chem.202005369] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/25/2021] [Indexed: 11/05/2022]
Abstract
An external-photocatalyst-free, light-driven alkylative ring-opening of stable spiroindolines was developed to construct indolo- and benzoannulated eight-membered lactams. The spiroindolines were prepared from tetrahydro-β-carbolines by a dearomative Heck reaction. Mechanistic experimental studies on the alkylative ring opening suggested that a photoredox pathway was involved, in which the spiroindoline performed as both reagent and photosensitizer. DFT calculations showed that the radical addition toward a cyclic alkene was the key to the diastereoselective formation of tetracyclic medium-sized lactams.
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Affiliation(s)
- Jianhui Qiao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratoryof Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Wenxuan Zhao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratoryof Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Yong Liang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratoryof Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Zhu-Jun Yao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratoryof Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Shaozhong Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratoryof Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
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44
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Le Saux E, Ma D, Bonilla P, Holden CM, Lustosa D, Melchiorre P. A General Organocatalytic System for Enantioselective Radical Conjugate Additions to Enals. Angew Chem Int Ed Engl 2021; 60:5357-5362. [PMID: 33283919 PMCID: PMC7986922 DOI: 10.1002/anie.202014876] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/04/2020] [Indexed: 11/28/2022]
Abstract
Herein, we report a general iminium ion-based catalytic method for the enantioselective conjugate addition of carbon-centered radicals to aliphatic and aromatic enals. The process uses an organic photoredox catalyst, which absorbs blue light to generate radicals from stable precursors, in combination with a chiral amine catalyst, which secures a consistently high level of stereoselectivity. The generality of this catalytic platform is demonstrated by the stereoselective interception of a wide variety of radicals, including non-stabilized primary ones which are generally difficult to engage in asymmetric processes. The system also served to develop organocatalytic cascade reactions that combine an iminium-ion-based radical trap with an enamine-mediated step, affording stereochemically dense chiral products in one-step.
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Affiliation(s)
- Emilien Le Saux
- ICIQ—Institute of Chemical Research of Catalonia the Barcelona Institute of Science and TechnologyAvenida Països Catalans 1643007TarragonaSpain
| | - Dengke Ma
- ICIQ—Institute of Chemical Research of Catalonia the Barcelona Institute of Science and TechnologyAvenida Països Catalans 1643007TarragonaSpain
| | - Pablo Bonilla
- ICIQ—Institute of Chemical Research of Catalonia the Barcelona Institute of Science and TechnologyAvenida Països Catalans 1643007TarragonaSpain
| | - Catherine M. Holden
- ICIQ—Institute of Chemical Research of Catalonia the Barcelona Institute of Science and TechnologyAvenida Països Catalans 1643007TarragonaSpain
| | - Danilo Lustosa
- ICIQ—Institute of Chemical Research of Catalonia the Barcelona Institute of Science and TechnologyAvenida Països Catalans 1643007TarragonaSpain
| | - Paolo Melchiorre
- ICREA-Passeig Lluís Companys 2308010BarcelonaSpain
- ICIQ—Institute of Chemical Research of Catalonia the Barcelona Institute of Science and TechnologyAvenida Països Catalans 1643007TarragonaSpain
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45
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Paul S, Guin J. A General Approach to Intermolecular Olefin Hydroacylation through Light-Induced HAT Initiation: An Efficient Synthesis of Long-Chain Aliphatic Ketones and Functionalized Fatty Acids. Chemistry 2021; 27:4412-4419. [PMID: 33350515 DOI: 10.1002/chem.202004946] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Indexed: 12/17/2022]
Abstract
Herein, an operationally simple, environmentally benign and effective method for intermolecular radical hydroacylation of unactivated substrates by employing photo-induced hydrogen atom transfer (HAT) initiation is described. The use of commercially available and inexpensive photoinitiators (Ph2 CO and NHPI) makes the process attractive. The olefin hydroacylation protocol applies to a wide array of substrates bearing numerous functional groups and many complex structural units. The reaction proves to be scalable (up to 5 g). Different functionalized fatty acids, petrochemicals and naturally occurring alkanes can be synthesized with this protocol. A radical chain mechanism is implicated in the process.
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Affiliation(s)
- Subhasis Paul
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032, India
| | - Joyram Guin
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032, India
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46
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Li X, Großkopf J, Jandl C, Bach T. Enantioselective, Visible Light Mediated Aza Paternò–Büchi Reactions of Quinoxalinones. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202013276] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xinyao Li
- Department Chemie and Catalysis Research Center (CRC) Technische Universität München Lichtenbergstrasse 4 85747 Garching Germany
| | - Johannes Großkopf
- Department Chemie and Catalysis Research Center (CRC) Technische Universität München Lichtenbergstrasse 4 85747 Garching Germany
| | - Christian Jandl
- Department Chemie and Catalysis Research Center (CRC) Technische Universität München Lichtenbergstrasse 4 85747 Garching Germany
| | - Thorsten Bach
- Department Chemie and Catalysis Research Center (CRC) Technische Universität München Lichtenbergstrasse 4 85747 Garching Germany
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47
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Le Saux E, Ma D, Bonilla P, Holden CM, Lustosa D, Melchiorre P. A General Organocatalytic System for Enantioselective Radical Conjugate Additions to Enals. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014876] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Emilien Le Saux
- ICIQ—Institute of Chemical Research of Catalonia the Barcelona Institute of Science and Technology Avenida Països Catalans 16 43007 Tarragona Spain
| | - Dengke Ma
- ICIQ—Institute of Chemical Research of Catalonia the Barcelona Institute of Science and Technology Avenida Països Catalans 16 43007 Tarragona Spain
| | - Pablo Bonilla
- ICIQ—Institute of Chemical Research of Catalonia the Barcelona Institute of Science and Technology Avenida Països Catalans 16 43007 Tarragona Spain
| | - Catherine M. Holden
- ICIQ—Institute of Chemical Research of Catalonia the Barcelona Institute of Science and Technology Avenida Països Catalans 16 43007 Tarragona Spain
| | - Danilo Lustosa
- ICIQ—Institute of Chemical Research of Catalonia the Barcelona Institute of Science and Technology Avenida Països Catalans 16 43007 Tarragona Spain
| | - Paolo Melchiorre
- ICREA- Passeig Lluís Companys 23 08010 Barcelona Spain
- ICIQ—Institute of Chemical Research of Catalonia the Barcelona Institute of Science and Technology Avenida Països Catalans 16 43007 Tarragona Spain
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48
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Guo W, Wang Q, Zhu J. Selective 1,2‐Aminoisothiocyanation of 1,3‐Dienes Under Visible‐Light Photoredox Catalysis. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202014518] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Weisi Guo
- Laboratory of Synthesis and Natural Products Institute of Chemical Sciences and Engineering Ecole Polytechnique Fédérale de Lausanne EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
- College of Chemistry & Molecular Engineering Qingdao University of Science & Technology 53 Zhengzhou Road Qingdao P. R. China
| | - Qian Wang
- Laboratory of Synthesis and Natural Products Institute of Chemical Sciences and Engineering Ecole Polytechnique Fédérale de Lausanne EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products Institute of Chemical Sciences and Engineering Ecole Polytechnique Fédérale de Lausanne EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
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49
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Guo W, Wang Q, Zhu J. Selective 1,2‐Aminoisothiocyanation of 1,3‐Dienes Under Visible‐Light Photoredox Catalysis. Angew Chem Int Ed Engl 2020; 60:4085-4089. [DOI: 10.1002/anie.202014518] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Weisi Guo
- Laboratory of Synthesis and Natural Products Institute of Chemical Sciences and Engineering Ecole Polytechnique Fédérale de Lausanne EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
- College of Chemistry & Molecular Engineering Qingdao University of Science & Technology 53 Zhengzhou Road Qingdao P. R. China
| | - Qian Wang
- Laboratory of Synthesis and Natural Products Institute of Chemical Sciences and Engineering Ecole Polytechnique Fédérale de Lausanne EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products Institute of Chemical Sciences and Engineering Ecole Polytechnique Fédérale de Lausanne EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
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50
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Jiang YX, Chen L, Ran CK, Song L, Zhang W, Liao LL, Yu DG. Visible-Light Photoredox-Catalyzed Ring-Opening Carboxylation of Cyclic Oxime Esters with CO 2. CHEMSUSCHEM 2020; 13:6312-6317. [PMID: 33017513 DOI: 10.1002/cssc.202002032] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/22/2020] [Indexed: 06/11/2023]
Abstract
The carboxylation of cyclic oxime esters with carbon dioxide via visible-light photoredox catalysis is demonstrated for the first time. A variety of cyclic oxime esters undergo ring-opening C-C bond cleavage and carboxylation to give cyanoalkyl-containing carboxylic acids in moderate to good yields. Moreover, this methodology features mild reaction conditions (room temperature, 1 atm), wide substrate scope, good functional group tolerance as well as facile derivations of products. Mechanistic studies indicate that the benzylic radicals and anions might be the key intermediates.
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Affiliation(s)
- Yuan-Xu Jiang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Liang Chen
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Chuan-Kun Ran
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Lei Song
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Wei Zhang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Li-Li Liao
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Da-Gang Yu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, School of Chemistry and Molecular Engineering, 3663N Zhongshan Road, Shanghai, 200062, P. R. China
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