1
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Liu QQ, Li JZ, Wang YJ, Leng YN, Huang YW, Meng XC, Leng BR, Wang DC, Zhu YL. Photocatalytic Radical Cascade Dehalogenation/Carbo-cyclization/Sulfonylation Leading to Indole- and Benzofuran-Based Benzylic Sulfones. J Org Chem 2023. [PMID: 38019169 DOI: 10.1021/acs.joc.3c02068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
This study presents a convenient approach to the synthesis of indole- and benzofuran-based benzylic sulfones using unactivated alkynes containing aryl iodides and sodium sulfinates under visible light irradiation. The procedure involves a sequential series of dehalogenation, carbo-cyclization, and radical sulfonylation. Plausible insights into the reaction mechanism are derived from control experiments, leading to the proposal of a radical cascade reaction pathway.
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Affiliation(s)
- Qing-Quan Liu
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Jia-Zhuo Li
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Yan-Jing Wang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Yan-Ning Leng
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Yu-Wen Huang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Xin-Chao Meng
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Bo-Rong Leng
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, P. R. China
- College of Life and Health, Nanjing Polytechnic Institute, Nanjing 211816, P. R. China
| | - De-Cai Wang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Yi-Long Zhu
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, P. R. China
- College of Life and Health, Nanjing Polytechnic Institute, Nanjing 211816, P. R. China
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2
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Qu Z, Ji X, Tian L, Mao G, Deng GJ, Huang H. TBHP-mediated photochemical coupling/cyclization of N-arylacrylamides with thiols. Org Biomol Chem 2023; 21:940-944. [PMID: 36602241 DOI: 10.1039/d2ob02187k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The effective photoredox-mediated oxidative thiolation and cyclization of N-arylacrylamides with thiols leads to biologically interesting 3-thionated oxindoles through C-S and C-C bond formation. This process represents a straightforward reaction that starts from non-prefunctionalized thiolating reagents. Mechanistic studies demonstrated that the TBHP serves as a key radical initiator with visible-light catalysis.
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Affiliation(s)
- Zhonghua Qu
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China.
| | - Xiaochen Ji
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China.
| | - Lin Tian
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China.
| | - Guojiang Mao
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, P. R. China
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China. .,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, P. R. China
| | - Huawen Huang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China.
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3
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Larin EM, Masson-Makdissi J, Jang YJ, Lautens M. Rhodium(I)-Catalyzed Formate-Mediated Domino Heck/1,4-Hydride Addition toward Oxindoles. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Egor M. Larin
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Jeanne Masson-Makdissi
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Young Jin Jang
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Mark Lautens
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
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4
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Tang J, Ren L, Li J, Wang Y, Hu D, Tong X, Xia C. Photochemical Synthesis of Indolocarbazoles through Tandem Indolization/Dimerization/Mannich Cyclization from Allenes. Org Lett 2022; 24:3582-3587. [PMID: 35549288 DOI: 10.1021/acs.orglett.2c01371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Indolocarbazole alkaloids and their derivatives were discovered to have potent protein kinase and topoisomerase I inhibitory activities. Disclosed herein is the photochemical synthesis of the indolocarbazole ring system from N-allenyl-2-iodoanilines. The tandem protocol included visible-light-mediated 5-exo-trig radical cyclization and subsequent radical dimerization, followed by acid-promoted deprotection and intramolecular Mannich cyclization. This strategy showed exceptional functional group tolerance and was successfully applied in the concise synthesis of natural products tjipanazoles B and D.
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Affiliation(s)
- Jiaying Tang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, China
| | - Linlin Ren
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, China
| | - Jianwei Li
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, China
| | - Yonggong Wang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, China
| | - Dongyan Hu
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, China
| | - Xiaogang Tong
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, China
| | - Chengfeng Xia
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, China
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5
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Mamedov VA, Galimullina VR, Kadyrova SF, Rizvanov IK, Latypov SK. A concise synthesis of indolin-2-ones via direct acid-catalyzed intramolecular Friedel-Crafts alkylation of 3-chloro-N-(substituted)-2-oxo-N,3-diarylpropanamides. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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6
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Jiao J, Xiao F, Wang C, Zhang Z. Iodine-Promoted Metal-Free Cyclization and O/S Exchange of Acrylamides with Thiuram: One-Step Synthesis of Quinolino-2-thiones. J Org Chem 2022; 87:4965-4970. [DOI: 10.1021/acs.joc.1c03030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Jing Jiao
- School of Chemistry and Molecular Engineering, Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science & Technology, 130 Meilong Road, Shanghai 200237, China
| | - Fangtao Xiao
- School of Chemistry and Molecular Engineering, Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science & Technology, 130 Meilong Road, Shanghai 200237, China
| | - Cheng Wang
- School of Chemistry and Molecular Engineering, Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science & Technology, 130 Meilong Road, Shanghai 200237, China
| | - Zhipeng Zhang
- School of Chemistry and Molecular Engineering, Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science & Technology, 130 Meilong Road, Shanghai 200237, China
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7
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Affiliation(s)
- Jitender Singh
- Department of Chemistry Indian Institute of Technology Roorkee Roorkee 247667 India
| | - Anuj Sharma
- Department of Chemistry Indian Institute of Technology Roorkee Roorkee 247667 India
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8
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Wang R, Liu S, Li L, Song A, Yu S, Zhuo S, Xing LB. Metal-free catalyst for the visible-light-induced photocatalytic synthesis of quinazolinones. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111668] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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9
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Tang Z, Wang Z, Peng Z, Yang Q, Yin SF, Qiu R. I 2-Mediated Cross-Dehydrogenative Coupling and Amidation of 3-Aryl Benzofuranones with Aryl Amines for the Synthesis of 3,3-Diaryl Indolin-2-ones. J Org Chem 2021; 86:2965-2973. [PMID: 33492130 DOI: 10.1021/acs.joc.0c02846] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We have developed a protocol for efficient synthesis of indolin-2-ones from benzofuranones and aryl amines using iodine as a mediator. A diverse range of benzofuranones and aryl amines undergo cross-dehydrogenative coupling and amidation of 3-aryl benzofuranones for the cascade reaction to generate products in 24-93% yields. This reaction can be easily scaled-up to give an indolin-2-one in a gram scale. Further chemical manipulation of the products enabled useful transformations of the phenol ring including alkylation, arylation, etc.
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Affiliation(s)
- Zhi Tang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China.,Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, Hainan Provincial Key Lab of Fine Chem, Hainan University, Haikou, 570228, China
| | - Zhiqing Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Zhihong Peng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Qinghua Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Shuang-Feng Yin
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Renhua Qiu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
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10
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Zhou N, Wu M, Kuang K, Wu S, Zhang M. Transition‐metal‐free Photo‐induced Cascade Sulfonylation/Addition/Cyclization of 3‐Arylethynyl‐[1,1′‐biphenyl]‐2‐carbonitriles with Aryldiazonium Tetrafluoroborates via the Insertion of Sulfur Dioxide. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000999] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Nengneng Zhou
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science Anhui Normal University, Wuhu Anhui 241000 People's Republic of China
| | - Meixia Wu
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science Anhui Normal University, Wuhu Anhui 241000 People's Republic of China
| | - Kaimo Kuang
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science Anhui Normal University, Wuhu Anhui 241000 People's Republic of China
| | - Sixin Wu
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science Anhui Normal University, Wuhu Anhui 241000 People's Republic of China
| | - Man Zhang
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science Anhui Normal University, Wuhu Anhui 241000 People's Republic of China
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11
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Yano N, Handa M, Kataoka Y. Photophysical properties and photosensitizing abilities for hydrogen evolution reactions of robust cyclometalated iridium(III) complexes with 5,5′-bis(trifluoromethyl)-2,2′-bipyridine. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112716] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Gao X, Li C, Yuan Y, Xie X, Zhang Z. Visible-light-induced intramolecular radical cascade of α-bromo-N-benzyl-alkylamides: a new strategy to synthesize tetracyclic N-fused indolo[2,1-a]isoquinolin-6(5H)-ones. Org Biomol Chem 2020; 18:263-271. [PMID: 31829389 DOI: 10.1039/c9ob02294e] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Polycyclic indole scaffolds are ubiquitous in pharmaceuticals and natural products and in materials science. Here, we present a visible-light-initiated intramolecular aryl migration/desulfonylation/cyclization cascade reaction for the synthesis of tetracyclic indolo[2,1-a]isoquinolin-6(5H)-ones. This protocol not only exhibited a wide substrate scope but also provided a mild route to access a variety of tetracyclic N-fused indoles.
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Affiliation(s)
- Xiaoshuang Gao
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
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13
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Ramesh K, Satyanarayana G. Microwave-assisted intramolecular reductive Heck in aqueous medium: Synthesis of 3,3′-Disubstituted heterocyclic compounds. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.120963] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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14
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Shukla G, Dahiya A, Alam T, Patel BK. Visible Light‐Mediated C2‐Quaternarization of N‐Alkyl Indoles through Oxidative Dearomatization using Ir(III) Catalyst. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900604] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Gaurav Shukla
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati- 781039 Assam India
| | - Anjali Dahiya
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati- 781039 Assam India
| | - Tipu Alam
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati- 781039 Assam India
| | - Bhisma K. Patel
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati- 781039 Assam India
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15
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Zhang Y, Zong X, Ji M. An iodine-promoted one-pot and metal-free access to indolin-2-ones. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.1177/1747519819875862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A new method for the synthesis of indolin-2-ones has been realized by an I2-promoted oxidative reaction from 1,2,3,3-tetramethyl-3 H-indolium iodides. This transformation proceeded smoothly under metal-free and peroxide-free conditions in a cascade manner.
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Affiliation(s)
- Yong Zhang
- School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
| | - Xi Zong
- Suzhou Key Laboratory of Biomaterials and Technologies & Collaborative Innovation Center of Suzhou Nano Science and Technology, Suzhou, China
| | - Min Ji
- School of Biological Science and Medical Engineering, Southeast University, Nanjing, China
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16
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Garrido-Castro AF, Salaverri N, Maestro MC, Alemán J. Intramolecular Homolytic Substitution Enabled by Photoredox Catalysis: Sulfur, Phosphorus, and Silicon Heterocycle Synthesis from Aryl Halides. Org Lett 2019; 21:5295-5300. [DOI: 10.1021/acs.orglett.9b01911] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
| | - Noelia Salaverri
- Department of Organic Chemistry, Universidad Autónoma de Madrid, Madrid 28049, Spain
| | - M. Carmen Maestro
- Department of Organic Chemistry, Universidad Autónoma de Madrid, Madrid 28049, Spain
| | - José Alemán
- Department of Organic Chemistry, Universidad Autónoma de Madrid, Madrid 28049, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, Madrid 28049, Spain
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17
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Li X, Fang X, Zhuang S, Liu P, Sun P. Photoredox Catalysis: Construction of Polyheterocycles via Alkoxycarbonylation/Addition/Cyclization Sequence. Org Lett 2017; 19:3580-3583. [PMID: 28656766 DOI: 10.1021/acs.orglett.7b01553] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel visible-light-induced cascade reaction for the preparation of ester-functionalized polyheterocycles was developed under metal-free conditions, which was initiated by an intermolecular radical addition to a carbon-carbon double bond of N-arylacrylamide derivatives using alkyl carbazate as the ester source followed by cyano-mediated cyclization. The desired phenanthridine derivative products were isolated in moderate to high yields with broad substrate scope.
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Affiliation(s)
- Xuanxuan Li
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University , Nanjing 210023, China
| | - Xinxin Fang
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University , Nanjing 210023, China
| | - Shengyi Zhuang
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University , Nanjing 210023, China
| | - Ping Liu
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University , Nanjing 210023, China
| | - Peipei Sun
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University , Nanjing 210023, China
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18
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Gonda Z, Béke F, Tischler O, Petró M, Novák Z, Tóth BL. Erythrosine B Catalyzed Visible-Light Photoredox Arylation-Cyclization of N
-Alkyl-N
-aryl-2-(trifluoromethyl)acrylamides to 3-(Trifluoromethyl)indolin-2-one Derivatives. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601493] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Zsombor Gonda
- MTA-ELTE “Lendület” Catalysis and Organic Synthesis Research Group; Eötvös University; Department of Organic Chemistry; Pázmány Péter stny. 1/A 1117 Budapest Hungary
| | - Ferenc Béke
- MTA-ELTE “Lendület” Catalysis and Organic Synthesis Research Group; Eötvös University; Department of Organic Chemistry; Pázmány Péter stny. 1/A 1117 Budapest Hungary
| | - Orsolya Tischler
- MTA-ELTE “Lendület” Catalysis and Organic Synthesis Research Group; Eötvös University; Department of Organic Chemistry; Pázmány Péter stny. 1/A 1117 Budapest Hungary
| | - Milán Petró
- MTA-ELTE “Lendület” Catalysis and Organic Synthesis Research Group; Eötvös University; Department of Organic Chemistry; Pázmány Péter stny. 1/A 1117 Budapest Hungary
| | - Zoltán Novák
- MTA-ELTE “Lendület” Catalysis and Organic Synthesis Research Group; Eötvös University; Department of Organic Chemistry; Pázmány Péter stny. 1/A 1117 Budapest Hungary
| | - Balázs L. Tóth
- MTA-ELTE “Lendület” Catalysis and Organic Synthesis Research Group; Eötvös University; Department of Organic Chemistry; Pázmány Péter stny. 1/A 1117 Budapest Hungary
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19
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Gao X, Dong W, Hu B, Gao H, Yuan Y, Xie X, Zhang Z. Visible-light induced tandem radical cyanomethylation and cyclization of N-aryl acrylamides: access to cyanomethylated oxindoles. RSC Adv 2017. [DOI: 10.1039/c7ra10090f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
A visible-light induced cyanomethylation of N-aryl acrylamides with bromoacetonitrile followed by intramolecular cyclization has been explored.
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Affiliation(s)
- Xiaoshuang Gao
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Wuheng Dong
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Bei Hu
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Huang Gao
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Yao Yuan
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Xiaomin Xie
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Zhaoguo Zhang
- School of Chemistry and Chemical Engineering
- Shanghai Jiao Tong University
- Shanghai 200240
- China
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20
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Zhao J, Guan S, Zhou X, Han W, Cui B, Chen Y. Bioreduction of the C C double bond with Pseudomonas monteilii ZMU-T17: one approach to 3-monosubstituted oxindoles. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.04.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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21
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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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22
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Mühmel S, Alpers D, Hoffmann F, Brasholz M. Iridium(III) Photocatalysis: A Visible-Light-Induced Dearomatizative Tandem [4+2] Cyclization to Furnish Benzindolizidines. Chemistry 2015. [PMID: 26211917 DOI: 10.1002/chem.201502572] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A photocatalytic dearomatizative tandem [4+2] cyclization between N-(2-iodoethyl)indoles and a variety of alkenes leads to tri- and tetracyclic benzindolizidines with high diastereoselectivity and yield. The intermolecular annulation reaction is performed under visible-light irradiation and employs [Ir(ppy)3] or [Ir(dtbbpy)(ppy)2] PF6 as photocatalysts, in combination with tertiary amines as electron and hydrogen atom donors.
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Affiliation(s)
- Sandra Mühmel
- Department of Chemistry, Institute of Organic Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg (Germany)
| | - Dirk Alpers
- Department of Chemistry, Institute of Organic Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg (Germany)
| | - Frank Hoffmann
- Department of Chemistry, Institute of Inorganic Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg (Germany)
| | - Malte Brasholz
- Department of Chemistry, Institute of Organic Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146 Hamburg (Germany).
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