1
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Jia Z, Cheng L, Zhang L, Luo S. Asymmetric C-H Dehydrogenative Alkenylation via a Photo-induced Chiral α‑Imino Radical Intermediate. Nat Commun 2024; 15:4044. [PMID: 38744891 PMCID: PMC11094157 DOI: 10.1038/s41467-024-48350-w] [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: 02/22/2024] [Accepted: 04/29/2024] [Indexed: 05/16/2024] Open
Abstract
The direct alkenylation with simple alkenes stands out as the most ideal yet challenging strategy for obtaining high-valued desaturated alkanes. Here we present a direct asymmetric dehydrogenative α-C(sp3)-H alkenylation of carbonyls based on synergistic photoredox-cobalt-chiral primary amine catalysis under visible light. The ternary catalytic system enables the direct coupling of β-keto-carbonyls and alkenes through a cooperative radical addition-dehydrogenation process involving a chiral α-imino radical and Co(II)-metalloradical intermediate. A catalytic H-transfer process involving nitrobenzene is engaged to quench in situ generated cobalt hydride species, ensuring a chemoselective alkenylation in good yields and high enantioselectivities.
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Affiliation(s)
- Zongbin Jia
- Center of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Liang Cheng
- Center of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Long Zhang
- Center of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Sanzhong Luo
- Center of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing, 100084, China.
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2
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Li JL, Li HY, Zhang SS, Shen S, Yang XL, Niu X. Photoredox/Cobalt-Catalyzed Cascade Oxidative Synthesis of 2,5-Disubstituted 1,3,4-Oxadiazoles under Oxidant-Free Conditions. J Org Chem 2023; 88:14874-14886. [PMID: 37862710 DOI: 10.1021/acs.joc.3c01078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2023]
Abstract
An efficient oxidant-free, photoredox-mediated cascade cyclization strategy for the synthesis of 1,3,4-oxadiazoles by using an organo acridinium photocatalyst and a cobaloxime catalyst has been developed. Various acylhydrazones have been transformed into the corresponding 1,3,4-oxadiazole products in up to 96% yield, and H2 is the only byproduct. Mechanistic experiments and density functional theory (DFT) calculation studies indicate carbon-centered radicals rather than oxygen-centered radicals as π-radicals produced by the oxidation of photoexcited Mes-Acr+* along with deprotonation, which is responsible for this transformation. The practical utility of this method is highlighted by the one-pot gram-scale synthesis starting directly from commercially available aldehydes and acylhydrazides.
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Affiliation(s)
- Jun-Li Li
- Key Laboratory of Analytical Science and Technology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province and College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Hao-Yuan Li
- Key Laboratory of Analytical Science and Technology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province and College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Shan-Shan Zhang
- Key Laboratory of Analytical Science and Technology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province and College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Shigang Shen
- Key Laboratory of Analytical Science and Technology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province and College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Xiu-Long Yang
- Key Laboratory of Analytical Science and Technology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province and College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
| | - Xiaoying Niu
- Key Laboratory of Analytical Science and Technology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Chemical Biology of Hebei Province and College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
- Postdoctoral Research Station of Chemistry Affiliated College of Chemistry and Materials Science, Hebei University, Baoding 071002, P. R. China
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3
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Yu J, Cheng Y, Chen B, Tung C, Wu L. Cobaloxime Photocatalysis for the Synthesis of Phosphorylated Heteroaromatics. Angew Chem Int Ed Engl 2022; 61:e202209293. [DOI: 10.1002/anie.202209293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Indexed: 11/11/2022]
Affiliation(s)
- 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
| | - 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
| | - 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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4
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Yu JX, Cheng YY, Chen B, Tung CH, Wu LZ. Cobaloxime Photocatalysis for Phosphorylated Heteroaromatics. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209293] [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)
- Ji-Xin Yu
- Technical Institute of Physics and Chemistry Technical Institute of Physics and Chemistry, CAS CHINA
| | - Yuan-Yuan Cheng
- Technical Institute of Physics and Chemistry Technical Institute of Physics and Chemistry, CAS CHINA
| | - Bin Chen
- Technical Institute of Physics and Chemistry Technical Institute of Physics and Chemistry, CAS CHINA
| | - Chen-Ho Tung
- Technical Institute of Physics and Chemistry Technical Institute of Physics and Chemistry, CAS CHINA
| | - Li-Zhu Wu
- Technical Institute of Physics and Chemistry Chinese Academy of Science Zhongguancun east road 29#, haidian district, Beijing 100190, China 100190 Beijing CHINA
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5
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Bhowmick A, Warghude PK, Bhat RG. Visible Light Promoted Metal‐Free Sustainable Reduction of α‐Alkylidene Oxindoles/Succinimides. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Anindita Bhowmick
- Indian Institute of Science Education and Research Pune Chemistry 411008 Pune INDIA
| | - Prakash K. Warghude
- Indian Institute of Science Education and Research Pune Chemistry 411008 PUNE INDIA
| | - Ramakrishna G. Bhat
- IISER Pune: Indian Institute of Science Education Research Pune Department of Chemistry C-Wing, Main Building, IISER-P 411008 Pune INDIA
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6
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Sengupta S, Das P. C-H activation reactions of nitroarenes: current status and outlook. Org Biomol Chem 2021; 19:8409-8424. [PMID: 34554174 DOI: 10.1039/d1ob01455b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ring substitution reactions of nitroarenes remain an under-developed area of organic synthesis, confined to the narrow domains of SNAr and SNArH reactions. While searching for alternative methodologies, we took stock of the C-H activation reactions of nitroarenes which unearthed a variety of examples of nitro directed regioselective C-H functionalization reactions such as ortho-arylation, -benzylation/alkylation, and -allylation, oxidative Heck and C-H arylation reactions on (hetero)aromatic rings. A collective account of these reactions is presented in this review to showcase the existing landscape of C-H activation reactions of nitroarenes, to create interest in this field for further development and propagate this strategy as a superior alternative for ring substitution reactions of nitroarenes. The prospect of merging the C-H activation of nitroarenes with C-NO2 activation, thereby harnessing NO2 as a transformable multitasking directing group, is also illustrated.
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Affiliation(s)
- Saumitra Sengupta
- Department of Chemistry, Indian Institute of Technology (Indian School of Mines), Dhanbad, Dhanbad-826004, India.
| | - Parthasarathi Das
- Department of Chemistry, Indian Institute of Technology (Indian School of Mines), Dhanbad, Dhanbad-826004, India.
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7
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Fu H, Zhou S, Fan X, Zhang L, Zhang J. Assembly and packing models of [Ti6Co12] ring based on the titanium-capped cobalt clathrochelates. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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8
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Wang H, Ying P, Yu J, Su W. Alternative Strategies Enabling Cross-Dehydrogenative Coupling: Access to C—C Bonds. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202009053] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Wu HL, Li XB, Tung CH, Wu LZ. Bioinspired metal complexes for energy-related photocatalytic small molecule transformation. Chem Commun (Camb) 2020; 56:15496-15512. [PMID: 33300513 DOI: 10.1039/d0cc05870j] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bioinspired transformation of small-molecules to energy-related feedstocks is an attractive research area to overcome both the environmental issues and the depletion of fossil fuels. The highly effective metalloenzymes in nature provide blueprints for the utilization of bioinspired metal complexes for artificial photosynthesis. Through simpler structural and functional mimics, the representative herein is the pivotal development of several critical small molecule conversions catalyzed by metal complexes, e.g., water oxidation, proton and CO2 reduction and organic chemical transformation of small molecules. Of great achievement is the establishment of bioinspired metal complexes as catalysts with high stability, specific selectivity and satisfactory efficiency to drive the multiple-electron and multiple-proton processes related to small molecule transformation. Also, potential opportunities and challenges for future development in these appealing areas are highlighted.
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Affiliation(s)
- Hao-Lin 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.
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10
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Zheng L, Tao K, Guo W. Recent Developments in Photo‐Catalyzed/Promoted Synthesis of Indoles and Their Functionalization: Reactions and Mechanisms. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001079] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Lvyin Zheng
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province Gannan Normal University Ganzhou 341000 People's Republic of China
| | - Kailiang Tao
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province Gannan Normal University Ganzhou 341000 People's Republic of China
| | - Wei Guo
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province Gannan Normal University Ganzhou 341000 People's Republic of China
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11
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Guo J, Xie Y, Zeng W, Wu Q, Weng J, Lu G. Visible‐Light Catalyzed [1+2+2] Cycloaddition Reactions Enabled by the Formation of Methylene Nitrones. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000858] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jing Guo
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Ying Xie
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Wen‐Tian Zeng
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Qiao‐Lei Wu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Jiang Weng
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Gui Lu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou 510006 People's Republic of China
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12
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Lei T, Liang G, Cheng YY, Chen B, Tung CH, Wu LZ. Cobaloxime Catalysis for Enamine Phosphorylation with Hydrogen Evolution. Org Lett 2020; 22:5385-5389. [PMID: 32585106 DOI: 10.1021/acs.orglett.0c01709] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Direct phosphorylation of enamine and enamide with hydrogen evolution was realized via cobaloxime catalysis under visible-light irradiation. Control experiments and spectroscopic studies demonstrated a reductive quenching pathway of cobaloxime catalyst to produce phosphinoyl radical, which underwent cross-coupling with various enamines (and enamides) to give diverse β-phosphinoyl products in good to excellent yields. More interestingly, Z/E mixture of acyclic enamines could convert into single Z-products with good reactivity.
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Affiliation(s)
- Tao Lei
- 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
| | - Ge Liang
- 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
| | - 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
| | - 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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13
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Ai W, Gao Y, Xue J, Liu X, Liu H, Wang J, Bai Y. Tracing and elucidating visible-light mediated oxidation and C-H functionalization of amines using mass spectrometry. Chem Commun (Camb) 2020; 56:2163-2166. [PMID: 31970374 DOI: 10.1039/c9cc09629a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The co-existing mechanism of visible light mediated direct oxidation and C-H functionalization of amines was investigated by capturing all the intermediates using online mass spectrometry. The two-step dehydrogenation of amine involving a proton coupled electron transfer (PCET) process was revealed for the first time.
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Affiliation(s)
- Wanpeng Ai
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China.
| | - Yunpeng Gao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China.
| | - Jinjuan Xue
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China.
| | - Xiaoyun Liu
- Department of Microbiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Huwei Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China.
| | - Jianbo Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China.
| | - Yu Bai
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China.
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14
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Yan X, Tang YD, Jiang CS, Liu X, Zhang H. Oxidative Dearomative Cross-Dehydrogenative Coupling of Indoles with Diverse C-H Nucleophiles: Efficient Approach to 2,2-Disubstituted Indolin-3-ones. MOLECULES (BASEL, SWITZERLAND) 2020; 25:molecules25020419. [PMID: 31968572 PMCID: PMC7024378 DOI: 10.3390/molecules25020419] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/12/2020] [Accepted: 01/15/2020] [Indexed: 11/16/2022]
Abstract
The oxidative, dearomative cross-dehydrogenative coupling of indoles with various C-H nucleophiles is developed. This process features a broad substrate scope with respect to both indoles and nucleophiles, affording structurally diverse 2,2-disubstituted indolin-3-ones in high yields (up to 99%). The oxidative dimerization and trimerization of indoles has also been demonstrated under the same conditions.
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Affiliation(s)
- Xue Yan
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China
| | - Ying-De Tang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China
| | - Cheng-Shi Jiang
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China
| | - Xigong Liu
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
- Correspondence: (X.L.); (H.Z.)
| | - Hua Zhang
- School of Biological Science and Technology, University of Jinan, Jinan 250022, China
- Correspondence: (X.L.); (H.Z.)
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15
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Liu WQ, Lei T, Zhou S, Yang XL, Li J, Chen B, Sivaguru J, Tung CH, Wu LZ. Cobaloxime Catalysis: Selective Synthesis of Alkenylphosphine Oxides under Visible Light. J Am Chem Soc 2019; 141:13941-13947. [DOI: 10.1021/jacs.9b06920] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Wen-Qiang Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Tao Lei
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Shuai Zhou
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Xiu-Long Yang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Jian Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Bin Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Jayaraman Sivaguru
- Center for Photochemical Sciences and Department of Chemistry, Bowling Green State University, Bowling Green, Ohio 43403, United States
| | - Chen-Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of 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, People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
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16
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Liu ZP, Li JL, Cheng XL, Cui JG, Huang YM, Gan CF, Su W, Xiao JA. Visible-Light-Induced Ring-Opening of Hydrogenolysis Spirocyclopropyl Oxindoles Through Photoredox Catalysis. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900696] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Zhi-Ping Liu
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics; Nanning Normal University; 530001 Nanning P. R. China
| | - Jin-Lian Li
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics; Nanning Normal University; 530001 Nanning P. R. China
| | - Xiu-Liang Cheng
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics; Nanning Normal University; 530001 Nanning P. R. China
| | - Jian-Guo Cui
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics; Nanning Normal University; 530001 Nanning P. R. China
| | - Yan-Ming Huang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics; Nanning Normal University; 530001 Nanning P. R. China
| | - Chun-Fang Gan
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics; Nanning Normal University; 530001 Nanning P. R. China
| | - Wei Su
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics; Nanning Normal University; 530001 Nanning P. R. China
| | - Jun-An Xiao
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics; Nanning Normal University; 530001 Nanning P. R. China
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17
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Qiao MM, Liu YY, Yao S, Ma TC, Tang ZL, Shi DQ, Xiao WJ. Photoredox/Cobalt-Catalyzed Phosphinyloxy Radical Addition/Cyclization Cascade: Synthesis of Phosphaisocoumarins. J Org Chem 2019; 84:6798-6806. [PMID: 31095379 DOI: 10.1021/acs.joc.9b00570] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel visible-light photoredox-catalyzed phosphinyloxy radical addition/cyclization cascade of arylphosphinic acids or arylphosphonic acid monoesters with alkynes has been developed, which provides an efficient and practical access to various phosphaisocoumarins by using a dual catalytic system containing an acridinium photosensitizer and a cobaloxime proton-reducing catalyst [Co(dmgH)2]PyCl at ambient temperature. This method has advantages of a broad substrate scope, mild condition, as well as no sacrificial oxidant.
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Affiliation(s)
- Ming-Ming Qiao
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry , Central China Normal University , 152 Luoyu Road , Wuhan 430079 , China
| | - Yi-Yin Liu
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry , Central China Normal University , 152 Luoyu Road , Wuhan 430079 , China
| | - Sheng Yao
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry , Central China Normal University , 152 Luoyu Road , Wuhan 430079 , China
| | - Tian-Cong Ma
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry , Central China Normal University , 152 Luoyu Road , Wuhan 430079 , China
| | - Zi-Long Tang
- College of Chemistry and Chemical Engineering , Hunan University of Science and Technology , Xiangtan , Hunan 411201 , China
| | - De-Qing Shi
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry , Central China Normal University , 152 Luoyu Road , Wuhan 430079 , China
| | - Wen-Jing Xiao
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry , Central China Normal University , 152 Luoyu Road , Wuhan 430079 , China.,State Key Laboratory of Applied Organic Chemistry , Lanzhou University , Lanzhou 730000 , China
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18
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Wang H, Gao X, Lv Z, Abdelilah T, Lei A. Recent Advances in Oxidative R 1-H/R 2-H Cross-Coupling with Hydrogen Evolution via Photo-/Electrochemistry. Chem Rev 2019; 119:6769-6787. [PMID: 31074264 DOI: 10.1021/acs.chemrev.9b00045] [Citation(s) in RCA: 427] [Impact Index Per Article: 85.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Photo-/electrochemical catalyzed oxidative R1-H/R2-H cross-coupling with hydrogen evolution has become an increasingly important issue for molecular synthesis. The dream of construction of C-C/C-X bonds from readily available C-H/X-H with release of H2 can be facilely achieved without external chemical oxidants, providing a greener model for chemical bond formation. Given the great influence of these reactions in organic chemistry, we give a summary of the state of the art in oxidative R1-H/R2-H cross-coupling with hydrogen evolution via photo/electrochemistry, and we hope this review will stimulate the development of a greener synthetic strategy in the near future.
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Affiliation(s)
- Huamin Wang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China
| | - Xinlong Gao
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China
| | - Zongchao Lv
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China
| | - Takfaoui Abdelilah
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China
| | - Aiwen Lei
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China.,National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, China
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19
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Xie W, Liu N, Gong B, Ning S, Che X, Cui L, Xiang J. Electrochemical Cross-Dehydrogenative Coupling of N
-Aryl-tetrahydroisoquinolines with Phosphites and Indole. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801883] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Wenxia Xie
- The Center for Combinatorial Chemistry and Drug Discovery of Jilin University; The School of Pharmaceutical Sciences; Jilin University; 1266 Fujin Road Changchun, Jilin 130021 P. R. China
| | - Nian Liu
- The Center for Combinatorial Chemistry and Drug Discovery of Jilin University; The School of Pharmaceutical Sciences; Jilin University; 1266 Fujin Road Changchun, Jilin 130021 P. R. China
| | - Bowen Gong
- The Center for Combinatorial Chemistry and Drug Discovery of Jilin University; The School of Pharmaceutical Sciences; Jilin University; 1266 Fujin Road Changchun, Jilin 130021 P. R. China
| | - Shulin Ning
- The Center for Combinatorial Chemistry and Drug Discovery of Jilin University; The School of Pharmaceutical Sciences; Jilin University; 1266 Fujin Road Changchun, Jilin 130021 P. R. China
| | - Xin Che
- The Center for Combinatorial Chemistry and Drug Discovery of Jilin University; The School of Pharmaceutical Sciences; Jilin University; 1266 Fujin Road Changchun, Jilin 130021 P. R. China
| | - Lili Cui
- Department of Chemistry and Chemical Engineering; Changchun University of Science and Technology; 7989 Weixing Road Changchun, Jilin 130022 P. R. China
| | - Jinbao Xiang
- The Center for Combinatorial Chemistry and Drug Discovery of Jilin University; The School of Pharmaceutical Sciences; Jilin University; 1266 Fujin Road Changchun, Jilin 130021 P. R. China
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20
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Zhao F, Yang Q, Zhang J, Shi W, Hu H, Liang F, Wei W, Zhou S. Photocatalytic Hydrogen-Evolving Cross-Coupling of Arenes with Primary Amines. Org Lett 2018; 20:7753-7757. [PMID: 30517014 DOI: 10.1021/acs.orglett.8b03089] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Herein, we described a cooperative catalyst system consisting of an acridinium photoredox catalyst and a cobalt-based proton-reduction catalyst that is effective for the C-H amination of arenes with concomitant generation of hydrogen. This oxidant-free method allows a variety of amines with diverse functional groups to be converted to aromatic amines. Additionally, this protocol can also be extended to hydrolytically unstable benzophenone imines.
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Affiliation(s)
- Fengqian Zhao
- Key Laboratory of Pesticide & Chemical Biology Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, CCNU-uOttawa Joint Research Centre, College of Chemistry , Central China Normal University (CCNU) , 152 Luoyu Road , Wuhan , Hubei 430079 , China
| | - Qiong Yang
- Key Laboratory of Pesticide & Chemical Biology Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, CCNU-uOttawa Joint Research Centre, College of Chemistry , Central China Normal University (CCNU) , 152 Luoyu Road , Wuhan , Hubei 430079 , China
| | - Jingjie Zhang
- Key Laboratory of Pesticide & Chemical Biology Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, CCNU-uOttawa Joint Research Centre, College of Chemistry , Central China Normal University (CCNU) , 152 Luoyu Road , Wuhan , Hubei 430079 , China
| | - Weimin Shi
- Key Laboratory of Pesticide & Chemical Biology Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, CCNU-uOttawa Joint Research Centre, College of Chemistry , Central China Normal University (CCNU) , 152 Luoyu Road , Wuhan , Hubei 430079 , China
| | - Huanhuan Hu
- Key Laboratory of Pesticide & Chemical Biology Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, CCNU-uOttawa Joint Research Centre, College of Chemistry , Central China Normal University (CCNU) , 152 Luoyu Road , Wuhan , Hubei 430079 , China
| | - Fang Liang
- Key Laboratory of Pesticide & Chemical Biology Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, CCNU-uOttawa Joint Research Centre, College of Chemistry , Central China Normal University (CCNU) , 152 Luoyu Road , Wuhan , Hubei 430079 , China
| | - Wei Wei
- Key Laboratory of Pesticide & Chemical Biology Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, CCNU-uOttawa Joint Research Centre, College of Chemistry , Central China Normal University (CCNU) , 152 Luoyu Road , Wuhan , Hubei 430079 , China
| | - Shaolin Zhou
- Key Laboratory of Pesticide & Chemical Biology Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, CCNU-uOttawa Joint Research Centre, College of Chemistry , Central China Normal University (CCNU) , 152 Luoyu Road , Wuhan , Hubei 430079 , China
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21
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9,10-Phenanthrenedione as Visible-Light Photoredox Catalyst: A Green Methodology for the Functionalization of 3,4-Dihydro-1,4-Benzoxazin-2-Ones through a Friedel-Crafts Reaction. Catalysts 2018. [DOI: 10.3390/catal8120653] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
A visible-light photoredox functionalization of 3,4-dihydro-1,4-benzoxazin-2-ones through a Friedel-Crafts reaction with indoles using an inexpensive organophotoredox catalyst is described. The reaction uses a dual catalytic system that is formed by a photocatalyst simple and cheap, 9,10-phenanthrenedione, and a Lewis acid, Zn(OTf)2. 5W white LEDs are used as visible-light source and oxygen from air as a terminal oxidant, obtaining the corresponding products with good yields. The reaction can be extended to other electron-rich arenes. Our methodology represents one of the most valuable and sustainable approach for the functionalization of 3,4-dihydro-1,4-benzoxazin-2-ones, as compared to the reported procedures. Furthermore, several transformations were carried out, such as the synthesis of the natural product cephalandole A and a tryptophol derivative.
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Chen B, Wu LZ, Tung CH. Photocatalytic Activation of Less Reactive Bonds and Their Functionalization via Hydrogen-Evolution Cross-Couplings. Acc Chem Res 2018; 51:2512-2523. [PMID: 30280898 DOI: 10.1021/acs.accounts.8b00267] [Citation(s) in RCA: 154] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Cross-coupling reactions have been established as potential tools for manufacture of complex molecular frameworks of diversified interests by connecting two simple molecules through the formation of a carbon-carbon (C-C) or a carbon-heteroatom (C-X) bond. Conventional cross-couplings are transition metal-catalyzed reactions between electrophiles and nucleophiles. Generally, the electrophilic partner is an aryl or alkenyl halide, the nucleophile is an organometallic reagent, and both are obtained from prefunctionalization of their corresponding hydrocarbons. During the past decade, transition metal-catalyzed dehydrogenative cross-couplings between two carbon-hydrogen (C-H) bonds and between one C-H bond and one heteroatom-hydrogen (X-H) bond, which build a C-C and a C-X linkage respectively, have emerged as an attractive strategy in synthetic chemistry. Such straightforward couplings allow use of less functionalized reagents, thus reducing the number of steps to the target molecule and minimizing waste production. However, such reactions involve the use of stoichiometric amounts of sacrificial oxidants such as peroxides, high-valent metals, and iodine(III) oxidants. This leads to low atom economy and possible generation of toxic wastes. Recently, visible light photocatalytic dehydrogenative cross-coupling reactions have received much attention due to their potential in utilizing sunlight as a source of energy making the process appealing. In this approach, metal complexes, organic dyes, or semiconductor quantum dots that absorb visible light are employed as photocatalysts. Upon irradiation, photocatalyst initiates single electron transfer with substrate(s) to generate a radical cation or radical anion of the substrate, which undergoes the desired reaction of interest. In this case, molecular oxygen is utilized as the oxidant with the formation of hydrogen peroxide as the only byproduct. These aspects make the process much greener than the corresponding transition metal-catalyzed dehydrogenative cross-coupling reactions. Research efforts from our group have led to the development of an environmentally benign strategy to construct a C-C bond from two different C-H bonds and to construct a C-X bond from one C-H bond and one X-H bond by visible light photocatalysis. Our approach, photocatalytic hydrogen-evolution cross-coupling reactions, combines a photocatalyst with a proton reduction cocatalyst to create a dual catalyst system. The former catalyst uses light energy as the driving force for the cross-coupling, while the latter catalyst may capture electrons from the substrates or reaction intermediates to reduce the protons eliminated from the reactive scaffolds (C-H/C-H or C-H/X-H bonds) into molecular hydrogen (H2). Thus, without use of any sacrificial oxidant and under mild conditions, our dual catalyst system affords cross-coupling products with excellent yields with generation of an equimolar amount of H2 as the sole byproduct. The photocatalytic hydrogen-evolution cross-coupling is highly step and atom economical and particularly useful for reactions that involve species sensitive to oxidative conditions. This Account highlights the findings from our laboratories on photocatalytic hydrogen-evolution cross-coupling reactions featuring activation and functionalization of C(sp3)-H bonds adjacent to amino groups and to oxygen atoms in ethers, aromatic C(sp2)-H bonds, and several types of X-H bonds. We expect that this strategy for combining photocatalytic activation of C-H and X-H bonds with proton reduction holds significant potential for development of atom economical and environmentally benign transformations.
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Affiliation(s)
- Bin Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry & School of Future Technology, University of CAS, the Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Li-Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry & School of Future Technology, University of CAS, the Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Chen-Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry & School of Future Technology, University of CAS, the Chinese Academy of Sciences, Beijing 100190, P. R. China
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23
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Wimmer A, König B. Visible-Light-Mediated Photoredox-Catalyzed N-Arylation of NH-Sulfoximines with Electron-Rich Arenes. Adv Synth Catal 2018; 360:3277-3285. [PMID: 30344467 PMCID: PMC6175368 DOI: 10.1002/adsc.201800607] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 06/28/2018] [Indexed: 11/13/2022]
Abstract
The direct C-H/N-H dehydrogenative cross-coupling of NH-sulfoximines with electron-rich arenes was realized by oxidative visible-light photoredox catalysis, applying 9-mesityl-10-methylacridinium perchlorate as an organic photocatalyst. Sulfoximines display diverse desirable properties for medicinal chemistry and the pharmaceutical industry. However, their preparation is still challenging. Our reaction proceeds without sacrificial oxidant, at room temperature and is highly selective for the C-N bond forming reaction. The scope of the reaction includes mono- and multi-alkylated and halogenated arenes, which are reacted with aromatic and aliphatic electron-rich and electron-poor NH-sulfoximines, giving moderate to excellent yields of the N-arylated sulfoximines. In addition, we successfully conducted the developed reaction on a gram scale (1.5 g). Mechanistic investigations show that both arene and NH-sulfoximine interact with the excited-state of the photocatalyst. We propose a radical-based mechanism, where both the arene and the NH-sulfoximine are photo-oxidized to their respective radical intermediates. Radical-radical cross-coupling subsequently leads to the N-arylated sulfoximine. Two electrons and two protons are released during the reaction and are subsequently converted into H2 by a proton-reducing cobalt-catalyst.
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Affiliation(s)
- Alexander Wimmer
- Department of Chemistry and Pharmacy, Institute of Organic ChemistryUniversity of RegensburgUniversitätsstraße 3193051RegensburgGermany
| | - Burkhard König
- Department of Chemistry and Pharmacy, Institute of Organic ChemistryUniversity of RegensburgUniversitätsstraße 3193051RegensburgGermany
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24
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Zhang H, Lei A. Visible-Light-Induced C−H Functionalization and C−C/C−X Bond-Forming Oxidative Cross-Coupling Reactions. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800214] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Heng Zhang
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan Hubei 430072 P. R. China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan Hubei 430072 P. R. China
- State Key Laboratory and Institute of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 P. R. China
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25
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Wang CH, Li YH, Yang SD. Autoxidation Photoredox Catalysis for the Synthesis of 2-Phosphinoylindoles. Org Lett 2018; 20:2382-2385. [DOI: 10.1021/acs.orglett.8b00722] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Chun-Hai Wang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yong-Hong Li
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Shang-Dong Yang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
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26
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Patil MR, Dedhia NP, Kapdi AR, Kumar A. Cobalt(II)/N-Hydroxyphthalimide-Catalyzed Cross-Dehydrogenative Coupling Reaction at Room Temperature under Aerobic Condition. J Org Chem 2018; 83:4477-4490. [DOI: 10.1021/acs.joc.8b00203] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mahendra R. Patil
- Department of Chemistry, Institute of Chemical Technology, Mumbai 400 019, India
| | - Noopur P. Dedhia
- Department of Chemistry, Institute of Chemical Technology, Mumbai 400 019, India
| | - Anant R. Kapdi
- Department of Chemistry, Institute of Chemical Technology, Mumbai 400 019, India
| | - A.Vijay Kumar
- Department of Chemistry, Institute of Chemical Technology, Mumbai 400 019, India
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27
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Corrigan N, Shanmugam S, Xu J, Boyer C. Photocatalysis in organic and polymer synthesis. Chem Soc Rev 2018; 45:6165-6212. [PMID: 27819094 DOI: 10.1039/c6cs00185h] [Citation(s) in RCA: 464] [Impact Index Per Article: 77.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This review, with over 600 references, summarizes the recent applications of photoredox catalysis for organic transformation and polymer synthesis. Photoredox catalysts are metallo- or organo-compounds capable of absorbing visible light, resulting in an excited state species. This excited state species can donate or accept an electron from other substrates to mediate redox reactions at ambient temperature with high atom efficiency. These catalysts have been successfully implemented for the discovery of novel organic reactions and synthesis of added-value chemicals with an excellent control of selectivity and stereo-regularity. More recently, such catalysts have been implemented by polymer chemists to post-modify polymers in high yields, as well as to effectively catalyze reversible deactivation radical polymerizations and living polymerizations. These catalysts create new approaches for advanced organic transformation and polymer synthesis. The objective of this review is to give an overview of this emerging field to organic and polymer chemists as well as materials scientists.
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Affiliation(s)
- Nathaniel Corrigan
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, UNSW Australia, Sydney, NSW 2052, Australia. and Australian Centre for NanoMedicine, School of Chemical Engineering, UNSW Australia, Sydney, NSW 2052, Australia
| | - Sivaprakash Shanmugam
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, UNSW Australia, Sydney, NSW 2052, Australia.
| | - Jiangtao Xu
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, UNSW Australia, Sydney, NSW 2052, Australia. and Australian Centre for NanoMedicine, School of Chemical Engineering, UNSW Australia, Sydney, NSW 2052, Australia
| | - Cyrille Boyer
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, UNSW Australia, Sydney, NSW 2052, Australia. and Australian Centre for NanoMedicine, School of Chemical Engineering, UNSW Australia, Sydney, NSW 2052, Australia
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28
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29
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Zheng YW, Ye P, Chen B, Meng QY, Feng K, Wang W, Wu LZ, Tung CH. Benzene C-H Etherification via Photocatalytic Hydrogen-Evolution Cross-Coupling Reaction. Org Lett 2017; 19:2206-2209. [PMID: 28409933 DOI: 10.1021/acs.orglett.7b00463] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Aryl ethers can be constructed from the direct coupling between the benzene C-H bond and the alcohol O-H bond with the evolution of hydrogen via the synergistic merger of photocatalysis and cobalt catalysis. Utilizing the dual catalyst system consisting of 3-cyano-1-methylquinolinum photocatalyst and cobaloxime, intermolecular etherification of arenes with various alcohols and intramolecular alkoxylation of 3-phenylpropanols with formation of chromanes are accomplished. These reactions proceed at remarkably mild conditions, and the sole byproduct is equivalent hydrogen gas.
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Affiliation(s)
- Yi-Wen Zheng
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, PR China.,Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry & University of Chinese Academy of Sciences, Chinese Academy of Sciences , Beijing 100190, PR China
| | - Pan Ye
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, PR China
| | - Bin Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry & University of Chinese Academy of Sciences, Chinese Academy of Sciences , Beijing 100190, PR China
| | - Qing-Yuan Meng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry & University of Chinese Academy of Sciences, Chinese Academy of Sciences , Beijing 100190, PR China
| | - Ke Feng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry & University of Chinese Academy of Sciences, Chinese Academy of Sciences , Beijing 100190, PR China
| | - Wenguang Wang
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, PR China
| | - Li-Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry & University of Chinese Academy of Sciences, Chinese Academy of Sciences , Beijing 100190, PR China
| | - Chen-Ho Tung
- Key Laboratory of Colloid and Interface Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University , Jinan 250100, PR China.,Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry & University of Chinese Academy of Sciences, Chinese Academy of Sciences , Beijing 100190, PR China
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30
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Yang Q, Zhang L, Ye C, Luo S, Wu L, Tung C. Visible‐Light‐Promoted Asymmetric Cross‐Dehydrogenative Coupling of Tertiary Amines to Ketones by Synergistic Multiple Catalysis. Angew Chem Int Ed Engl 2017; 56:3694-3698. [DOI: 10.1002/anie.201700572] [Citation(s) in RCA: 180] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Indexed: 01/06/2023]
Affiliation(s)
- Qi Yang
- Key Laboratory for Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Long Zhang
- Key Laboratory for Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Chen Ye
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Sanzhong Luo
- Key Laboratory for Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Li‐Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Chen‐Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China
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31
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Yang Q, Zhang L, Ye C, Luo S, Wu L, Tung C. Visible‐Light‐Promoted Asymmetric Cross‐Dehydrogenative Coupling of Tertiary Amines to Ketones by Synergistic Multiple Catalysis. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700572] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Qi Yang
- Key Laboratory for Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Long Zhang
- Key Laboratory for Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Chen Ye
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Sanzhong Luo
- Key Laboratory for Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Li‐Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Chen‐Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China
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32
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Pramanik MMD, Nagode SB, Kant R, Rastogi N. Visible light catalyzed Mannich reaction between tert-amines and silyl diazoenolates. Org Biomol Chem 2017; 15:7369-7373. [DOI: 10.1039/c7ob01756a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The present work documents the α-C–H functionalization of tertiary amines via the visible light catalyzed Mannich reaction with silyl diazoenolates.
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Affiliation(s)
- Mukund M. D. Pramanik
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
| | - Savita B. Nagode
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
| | - Ruchir Kant
- Molecular & Structural Biology Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
| | - Namrata Rastogi
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031
- India
- Academy of Scientific and Innovative Research
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Abstract
The interaction between an electronically excited photocatalyst and an organic molecule can result in the genertion of a diverse array of reactive intermediates that can be manipulated in a variety of ways to result in synthetically useful bond constructions. This Review summarizes dual-catalyst strategies that have been applied to synthetic photochemistry. Mechanistically distinct modes of photocatalysis are discussed, including photoinduced electron transfer, hydrogen atom transfer, and energy transfer. We focus upon the cooperative interactions of photocatalysts with redox mediators, Lewis and Brønsted acids, organocatalysts, enzymes, and transition metal complexes.
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Affiliation(s)
- Kazimer
L. Skubi
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Travis R. Blum
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Tehshik P. Yoon
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
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34
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Bartling H, Eisenhofer A, König B, Gschwind RM. The Photocatalyzed Aza-Henry Reaction of N-Aryltetrahydroisoquinolines: Comprehensive Mechanism, H(•)- versus H(+)-Abstraction, and Background Reactions. J Am Chem Soc 2016; 138:11860-71. [PMID: 27541322 DOI: 10.1021/jacs.6b06658] [Citation(s) in RCA: 106] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The cross-dehydrogenative coupling (CDC) reaction of N-aryltetrahydroisoquinolines (THIQ) is one of the most exploited photocatalytic transformation and a test reaction for an exceptional variety of catalysts. However, its mechanism remained unclear concerning involved intermediates, reactive pathways of the amine radical cation and the influence of oxygen and the light source. Therefore, nuclear magnetic resonance (NMR), electron spin resonance (ESR) and synthetic methods were combined to provide a comprehensive picture of the reaction mechanism using Ru(bpy)3Cl2 as a photocatalyst under aerobic and anaerobic conditions. The reaction profiles and involved intermediates were monitored and analyzed by NMR spectroscopy. Several intermediates contributing to product formation were identified, the iminium ion, the hydroperoxide and dimer of THIQ, and a new ring opened intermediate, cleaved at the benzylic C-N bond. Mechanistic evidence is given that under anaerobic conditions preferentially the α-amino radical is formed by deprotonation, in contrast to the formation of iminium ions via H(•)-abstraction in the presence of oxygen. Further, the light-induced background reaction in the absence of the catalyst was studied in detail, revealing that the product formation rate is correlated to the intensity and wavelength of the light source and that oxygen is essential for an efficient conversion. The reaction rate and efficiency is comparable to previously reported photocatalytic systems, performed under aerobic conditions in combination with intense blue light sources. Thus, the multitude of reaction parameters investigated reveals the preference for hydrogen atom or proton abstraction in photoreactions and allows to assess the influence of experimental conditions on the mechanistic pathways.
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Affiliation(s)
- Hanna Bartling
- Institute of Organic Chemistry, Faculty of Chemistry and Pharmacy, University of Regensburg , D-93040 Regensburg, Germany
| | - Anna Eisenhofer
- Institute of Organic Chemistry, Faculty of Chemistry and Pharmacy, University of Regensburg , D-93040 Regensburg, Germany
| | - Burkhard König
- Institute of Organic Chemistry, Faculty of Chemistry and Pharmacy, University of Regensburg , D-93040 Regensburg, Germany
| | - Ruth M Gschwind
- Institute of Organic Chemistry, Faculty of Chemistry and Pharmacy, University of Regensburg , D-93040 Regensburg, Germany
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35
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Abstract
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In
recent years, photoredox catalysis has come to the forefront
in organic chemistry as a powerful strategy for the activation of
small molecules. In a general sense, these approaches rely on the
ability of metal complexes and organic dyes to convert visible light
into chemical energy by engaging in single-electron transfer with
organic substrates, thereby generating reactive intermediates. In
this Perspective, we highlight the unique ability of photoredox catalysis
to expedite the development of completely new reaction mechanisms,
with particular emphasis placed on multicatalytic strategies that
enable the construction of challenging carbon–carbon and carbon–heteroatom
bonds.
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Affiliation(s)
- Megan H Shaw
- Merck Center for Catalysis at Princeton University , Princeton, New Jersey 08544, United States
| | - Jack Twilton
- Merck Center for Catalysis at Princeton University , Princeton, New Jersey 08544, United States
| | - David W C MacMillan
- Merck Center for Catalysis at Princeton University , Princeton, New Jersey 08544, United States
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36
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Levin MD, Kim S, Toste FD. Photoredox Catalysis Unlocks Single-Electron Elementary Steps in Transition Metal Catalyzed Cross-Coupling. ACS CENTRAL SCIENCE 2016; 2:293-301. [PMID: 27280163 PMCID: PMC4882737 DOI: 10.1021/acscentsci.6b00090] [Citation(s) in RCA: 187] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Indexed: 05/22/2023]
Abstract
Since initial reports, cross-coupling technologies employing photoredox catalysts to access novel reactivity have developed with increasing pace. In this Outlook, prominent examples from the recent literature are organized on the basis of the elementary transformation enabled by photoredox catalysis and are discussed in the context of relevant historical precedent in stoichiometric organometallic chemistry. This treatment allows mechanistic similarities inherent to odd-electron transition metal reactivity to be generalized to a set of lessons for future reaction development.
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37
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Demissie TB, Hansen JH. Synergy between experimental and computational approaches to homogeneous photoredox catalysis. Dalton Trans 2016; 45:10878-82. [DOI: 10.1039/c6dt01497f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this Frontiers article, we highlight how state-of-the-art density functional theory calculations can contribute to the field of homogeneous photoredox catalysis.
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Affiliation(s)
- Taye B. Demissie
- Centre for Theoretical and Computational Chemistry
- UiT The Arctic University of Norway
- N-9037 Tromsø
- Norway
| | - Jørn H. Hansen
- Department of Chemistry
- UiT The Arctic University of Norway
- N-9037 Tromsø
- Norway
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38
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Wang F, Cao B, To WP, Tse CW, Li K, Chang XY, Zang C, Chan SLF, Che CM. The effects of chelating N4 ligand coordination on Co(ii)-catalysed photochemical conversion of CO2 to CO: reaction mechanism and DFT calculations. Catal Sci Technol 2016. [DOI: 10.1039/c6cy01265e] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
cis-[Co(PDP)Cl2] complex mediated reduction conversion of CO2 to CO under photocatalytic or electrocatalytic conditions with high turnovers or Faraday efficiency.
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Affiliation(s)
- Feng Wang
- State Key Laboratory of Synthetic Chemistry
- Institute of Molecular Functional Materials
- HKU-CAS Joint Laboratory on New Materials
- Department of Chemistry
- The University of Hong Kong
| | - Bei Cao
- State Key Laboratory of Synthetic Chemistry
- Institute of Molecular Functional Materials
- HKU-CAS Joint Laboratory on New Materials
- Department of Chemistry
- The University of Hong Kong
| | - Wai-Pong To
- State Key Laboratory of Synthetic Chemistry
- Institute of Molecular Functional Materials
- HKU-CAS Joint Laboratory on New Materials
- Department of Chemistry
- The University of Hong Kong
| | - Chun-Wai Tse
- State Key Laboratory of Synthetic Chemistry
- Institute of Molecular Functional Materials
- HKU-CAS Joint Laboratory on New Materials
- Department of Chemistry
- The University of Hong Kong
| | - Kai Li
- State Key Laboratory of Synthetic Chemistry
- Institute of Molecular Functional Materials
- HKU-CAS Joint Laboratory on New Materials
- Department of Chemistry
- The University of Hong Kong
| | - Xiao-Yong Chang
- State Key Laboratory of Synthetic Chemistry
- Institute of Molecular Functional Materials
- HKU-CAS Joint Laboratory on New Materials
- Department of Chemistry
- The University of Hong Kong
| | - Chao Zang
- State Key Laboratory of Synthetic Chemistry
- Institute of Molecular Functional Materials
- HKU-CAS Joint Laboratory on New Materials
- Department of Chemistry
- The University of Hong Kong
| | - Sharon Lai-Fung Chan
- Department of Applied Biology and Chemical Technology
- The Hong Kong Polytechnic University
- Kowloon
- PR China
| | - Chi-Ming Che
- State Key Laboratory of Synthetic Chemistry
- Institute of Molecular Functional Materials
- HKU-CAS Joint Laboratory on New Materials
- Department of Chemistry
- The University of Hong Kong
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39
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Kumar A, Shah BA. Synthesis of Biaryls via Benzylic C–C Bond Cleavage of Styrenes and Benzyl Alcohols. Org Lett 2015; 17:5232-5. [DOI: 10.1021/acs.orglett.5b02578] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Arvind Kumar
- Academy of Scientific
and Innovative Research and Natural
Product Microbes, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu-Tawi 180001, India
| | - Bhahwal Ali Shah
- Academy of Scientific
and Innovative Research and Natural
Product Microbes, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu-Tawi 180001, India
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40
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Angnes RA, Li Z, Correia CRD, Hammond GB. Recent synthetic additions to the visible light photoredox catalysis toolbox. Org Biomol Chem 2015; 13:9152-67. [PMID: 26242759 DOI: 10.1039/c5ob01349f] [Citation(s) in RCA: 171] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The boom in visible light photoredox catalysis (VLPC) research has demonstrated that this novel synthetic approach is here to stay. VLPC enables reactive radical intermediates to be catalytically generated at ambient temperature, a feat not generally allowed through traditional pyrolysis- or radical initiator-based methodologies. VLPC has vastly extended the range of substrates and reaction schemes that have been traditionally the domain of radical reactions. In this review the photophysics background of VLPC will be briefly discussed, followed by a report on recent inroads of VLPC into decarboxylative couplings and radical C-H functionalization of aromatic compounds. The bulk of the review will be dedicated to advances in synergistic catalysis involving VLPC, namely the combination of photoredox catalysis with organocatalysis, including β-functionalization of carbonyl groups, functionalization of weak aliphatic C-H bonds, and anti-Markovnikov hydrofunctionalization of alkenes; dual catalysis with gold or with nickel, photoredox catalysis as an oxidation promoter in transition metal catalysis, and acid-catalyzed enantioselective radical addition to π systems.
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Affiliation(s)
- Ricardo A Angnes
- Chemistry Institute, State University of Campinas - Unicamp C.P. 6154, CEP. 13083-970, Campinas, São Paulo, Brazil
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41
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Zhang G, Liu C, Yi H, Meng Q, Bian C, Chen H, Jian JX, Wu LZ, Lei A. External Oxidant-Free Oxidative Cross-Coupling: A Photoredox Cobalt-Catalyzed Aromatic C-H Thiolation for Constructing C-S Bonds. J Am Chem Soc 2015; 137:9273-80. [PMID: 26158688 DOI: 10.1021/jacs.5b05665] [Citation(s) in RCA: 270] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
An external oxidant-free oxidative coupling for aromatic C-H thiolation by visible-light photoredox cobalt-catalysis has been developed. Various substrates could afford benzothiazoles in good to excellent yields, and only H2 is generated as a side product. When catalytic TBAOH was used as the base, not only 2-aryl but also 2-alkylbenzothiazoles could be obtained through this novel dehydrogenative coupling reaction. This method could be scaled up and applied to the synthesis of biologically active molecules bearing benzothiazole structural scaffolds (potent antitumor agents). Furthermore, the unexpected oxidation byproduct amides, which are often generated in oxidative cyclization of thiobenzanilides, can be completely avoided. Mechanistic studies showed that the H2 originates from the substrates. The kinetic studies indicate that the interaction between the cobalt catalyst and proton might be involved in the rate-limiting process.
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Affiliation(s)
- Guoting Zhang
- †College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Chao Liu
- †College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Hong Yi
- †College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | | | - Changliang Bian
- †College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Hong Chen
- †College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | | | | | - Aiwen Lei
- †College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China.,§Institute for Advanced Studies (IAS) of Wuhan University, Wuhan, Hubei 430071, P. R. China
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42
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Li DY, Chen HJ, Liu PN. Rhodium-Catalyzed Oxidative Annulation of Hydrazines with Alkynes Using a Nitrobenzene Oxidant. Org Lett 2014; 16:6176-9. [DOI: 10.1021/ol5030794] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Deng Yuan Li
- Shanghai Key Laboratory of
Functional Materials Chemistry, Key Lab for Advanced Materials and
Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, China
| | - Hao Jie Chen
- Shanghai Key Laboratory of
Functional Materials Chemistry, Key Lab for Advanced Materials and
Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, China
| | - Pei Nian Liu
- Shanghai Key Laboratory of
Functional Materials Chemistry, Key Lab for Advanced Materials and
Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road 130, Shanghai 200237, China
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