1
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Xian N, Deng GJ, Huang H. Formation of cyclopenta[ c]quinolines through visible-light-induced photoredox cascade bis-annulations of 1,7-enynes with sulfoxonium ylides. Org Biomol Chem 2024. [PMID: 39221627 DOI: 10.1039/d4ob01294a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
A novel visible-light-driven photoredox-catalyzed cascade bicyclization of 1,7-enynes with aqueous sulfoxonium ylides is reported. The reaction is highly chemoselective with three new C-C bonds, two new rings, and an all-carbon quaternary stereocenter constructed in a one-pot fashion. This mild protocol features a remarkably broad substrate scope with good functional group tolerance, providing a general and practical approach to access various cyclopenta[c]quinolines.
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Affiliation(s)
- Ning Xian
- 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.
| | - 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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2
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Zhou Y, Xu S, Zhang X, Zhou L, Zheng H, Zhu G. Recent advances of 5- endo-trig radical cyclization: promoting strategies and applications. Chem Commun (Camb) 2024. [PMID: 39177094 DOI: 10.1039/d4cc03302g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2024]
Abstract
5-endo-trig radical cyclization has long been recognized as one of the most straightforward ways for the construction of densely functionalized five-membered rings. Nevertheless, according to Baldwin's rules, the 5-endo-trig radical cyclization is kinetically disfavored due to stereoelectronic effects and thus usually proceeds via a slow rate, which renders its application a challenging task. In recent years, with the emergence of efficient radical generation methods and effective cyclization strategies, 5-endo-trig radical cyclization has been successfully accelerated to a synthetically useful rate and has been utilized in the access of diverse five-membered carbo- and heterocyclic compounds. This review comprehensively summarizes the methodologies involving the 5-endo-trig radical cyclization process, with particular emphasis on the elucidation of the promoting strategies, which include the polar effect, geometrical constraints, spin delocalization effect, and persistent radical effect. Each of these strategies is discussed in detail, with illustrative examples from recent literature studies to highlight their practical applications and effectiveness. It is anticipated that the in-depth understanding of the 5-endo-trig radical cyclization provided by this review would inspire further innovation of this privileged reaction mode and expand its applications. Moreover, the potent ring-closure-promoting strategies revealed herein would also contribute to achieving other challenges of cyclizations with particular significance for organic synthesis.
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Affiliation(s)
- Yulu Zhou
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, 688 Yingbin Road, Jinhua, Zhejiang 321004, China.
| | - Sangxuan Xu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, 688 Yingbin Road, Jinhua, Zhejiang 321004, China.
| | - Xuemei Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, 688 Yingbin Road, Jinhua, Zhejiang 321004, China.
| | - Lanxi Zhou
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, 688 Yingbin Road, Jinhua, Zhejiang 321004, China.
| | - Hanliang Zheng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, 688 Yingbin Road, Jinhua, Zhejiang 321004, China.
| | - Gangguo Zhu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, 688 Yingbin Road, Jinhua, Zhejiang 321004, China.
- College of Pharmacy, Jinhua University of Vocational Technology, 888 Haitang West Road, Jinhua, Zhejiang 321017, China
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3
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Xian N, Yin J, Ji X, Deng GJ, Huang H. Stereoselective Three-Component Carbocyclization of 1,7-Enynes with Sulfoxonium Ylides and Water under Photoredox Catalysis. Org Lett 2024; 26:6736-6741. [PMID: 39073859 DOI: 10.1021/acs.orglett.4c02423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
A visible-light-induced photoredox three-component carbocyclization reaction of 1,7-enynes with sulfoxonium ylides and water is reported. The protocol provides a facile entry to structurally valuable highly functionalized cyclopenta[c]quinoline scaffolds in a highly chemoselective and stereoselective manner. Salient features of this method include facile redox-neutral conditions, no requirement of base or other additive, and good functional-group tolerance.
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Affiliation(s)
- Ning Xian
- College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Jiang Yin
- College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Xiaochen Ji
- College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Guo-Jun Deng
- College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, China
| | - Huawen Huang
- College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
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4
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Li WT, Zhang ZX, Huang J, Jiang HM, Luo ZW, Li JH, Ouyang XH. Photochemical Divergent Ring-Closing Metathesis of 1,7-Enynes: Efficient Synthesis of Spirocyclic Quinolin-2-ones. Org Lett 2024; 26:6664-6669. [PMID: 39078505 DOI: 10.1021/acs.orglett.4c02332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/31/2024]
Abstract
A photocatalytic method for the ring-closing 1,7-enyne metathesis using the α-amino radical as an alkene deconstruction auxiliary is present. Preliminary mechanistic studies suggest that intramolecular 1,5-hydrogen atom transfer is the key to the generation and β-scission of the α-amino radical, while the dearomatization of arenes and ring opening of cyclopropanes are the key to construct spirocyclic quinolin-2-ones. This approach highlights the potential of ring-closing 1,7-enyne metathesis, providing a green, efficient, and step-economical way for the synthesis of spirocyclic quinolin-2-ones.
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Affiliation(s)
- Wan-Ting Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, People's Republic of China
| | - Zhi-Xia Zhang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, People's Republic of China
| | - Jing Huang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, People's Republic of China
| | - Hui-Min Jiang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, People's Republic of China
| | - Zhen-Wei Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, People's Republic of China
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, People's Republic of China
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People's Republic of China
| | - Xuan-Hui Ouyang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, People's Republic of China
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
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5
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Wang J, Lin Phang Y, Yu YJ, Liu NN, Xie Q, Zhang FL, Jin JK, Wang YF. Boryl Radical as a Catalyst in Enabling Intra- and Intermolecular Cascade Radical Cyclization Reactions: Construction of Polycyclic Molecules. Angew Chem Int Ed Engl 2024; 63:e202405863. [PMID: 38589298 DOI: 10.1002/anie.202405863] [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: 03/26/2024] [Revised: 04/05/2024] [Accepted: 04/08/2024] [Indexed: 04/10/2024]
Abstract
Cascade radical cyclization constitutes an atom- and step-economic route for rapid assembly of polycyclic molecular skeletons. Although an array of redox-active metal catalysts has recently shown robust applications in enabling various catalytic cascade radical processes, the use of free organic radical as the catalyst, which is capable of triggering strategically distinct cascades, has rarely been developed. Here, we disclosed that the benzimidazolium-based N-heterocyclic carbene (NHC)-boryl radical is capable of catalyzing cascade cyclization reactions in both intra- and intermolecular pathways, assembling [5,5] fused bicyclic and [6,6,6] fused tricyclic molecules, respectively. The catalytic reactions start with the chemo- and regioselective addition of the boryl radical catalyst to a tethered alkene or alkyne moiety, followed by either an intramolecular formal [3+2] or an intermolecular [2+2+2] cycloaddition process to construct bicyclo[3.3.0]octane or tetrahydrophenanthridine skeletons, respectively. Eventually, a β-elimination occurs to release the boryl radical catalyst, completing a catalytic cycle. High to excellent diastereoselectivity is achieved in both catalytic reactions under substrate control.
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Affiliation(s)
- Jie Wang
- Department of Nuclear Medicine, Division of Life Sciences and Medicine, the, First Affiliated Hospital of USTC, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, Anhui, China
| | - Yee Lin Phang
- Department of Nuclear Medicine, Division of Life Sciences and Medicine, the, First Affiliated Hospital of USTC, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, Anhui, China
| | - You-Jie Yu
- Department of Nuclear Medicine, Division of Life Sciences and Medicine, the, First Affiliated Hospital of USTC, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, Anhui, China
| | - Nan-Nan Liu
- Department of Nuclear Medicine, Division of Life Sciences and Medicine, the, First Affiliated Hospital of USTC, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, Anhui, China
| | - Qiang Xie
- Department of Nuclear Medicine, Division of Life Sciences and Medicine, the, First Affiliated Hospital of USTC, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, Anhui, China
| | - Feng-Lian Zhang
- Department of Nuclear Medicine, Division of Life Sciences and Medicine, the, First Affiliated Hospital of USTC, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, Anhui, China
| | - Ji-Kang Jin
- Department of Nuclear Medicine, Division of Life Sciences and Medicine, the, First Affiliated Hospital of USTC, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, Anhui, China
| | - Yi-Feng Wang
- Department of Nuclear Medicine, Division of Life Sciences and Medicine, the, First Affiliated Hospital of USTC, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, Anhui, China
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
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6
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Xue L, Gao C, Zhang X, Fan X. Synthesis of Acyl Cyclopentaquinolinones through Simultaneous Construction of the Heterocyclic Scaffold and Introduction of the Acyl Group. J Org Chem 2024; 89:6292-6305. [PMID: 38625738 DOI: 10.1021/acs.joc.4c00307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
Presented herein is an effective and concise synthesis of acyl cyclopentaquinolinone derivatives via the cascade reactions of N-(o-ethynylaryl)acrylamides with α-diazo carbonyl compounds. The formation of product involves a visible light-induced radical formation from α-diazo carbonyl compound followed by its addition onto the acrylamide moiety to trigger double radical annulation, single-electron oxidation, and β-elimination. To our knowledge, this is the first example in which the cyclopentaquinolinone scaffold was constructed along with the introduction of an acyl group under visible light irradiation conditions. Compared with literature methods for similar purpose, this newly developed protocol has advantages such as readily accessible substrates, mild reaction conditions, valuable products, concise synthetic procedure, and high sustainability. With all these merits, this method is expected to find wide applications in the construction of related acyl heterocyclic skeletons.
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Affiliation(s)
- Lian Xue
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Chang Gao
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xinying Zhang
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xuesen Fan
- State Key Laboratory of Antiviral Drugs, Pingyuan Laboratory, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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7
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Zhou H, Li L, Yan Q, Ma J, Wang Y, Gao Y, Liu ZQ, Li Z. Metal-free radical bicyclization/chloroalkylarylation of 1,6-enynes with chloroalkanes. Chem Commun (Camb) 2024; 60:3938-3941. [PMID: 38497681 DOI: 10.1039/d4cc00651h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Free radical initiated bicyclization of 1,6-enynes with chloralkanes, is achieved via selective activation of the C(sp3)-H bond of the chloralkane, resulting in diverse polychlorinated/chlorinated polyheterocycles. Two kinds of transformations and a scaled-up experiment were performed to test the synthetic importance of the organic chlorides. Finally, a range of radical inhibition operations and radical clock tests were explored to support the reaction process.
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Affiliation(s)
- Hongxun Zhou
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, State Key Laboratory of New Pharmaceutical Preparations and Excipients, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province (22567635H), Hebei Research Center of the Basic Discipline of Synthetic Chemistry, Hebei University, Baoding, Hebei, 071002, P. R. China.
| | - Lijun Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, State Key Laboratory of New Pharmaceutical Preparations and Excipients, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province (22567635H), Hebei Research Center of the Basic Discipline of Synthetic Chemistry, Hebei University, Baoding, Hebei, 071002, P. R. China.
| | - Qinqin Yan
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, State Key Laboratory of New Pharmaceutical Preparations and Excipients, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province (22567635H), Hebei Research Center of the Basic Discipline of Synthetic Chemistry, Hebei University, Baoding, Hebei, 071002, P. R. China.
| | - Jinyue Ma
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, State Key Laboratory of New Pharmaceutical Preparations and Excipients, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province (22567635H), Hebei Research Center of the Basic Discipline of Synthetic Chemistry, Hebei University, Baoding, Hebei, 071002, P. R. China.
| | - Ying Wang
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, State Key Laboratory of New Pharmaceutical Preparations and Excipients, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province (22567635H), Hebei Research Center of the Basic Discipline of Synthetic Chemistry, Hebei University, Baoding, Hebei, 071002, P. R. China.
| | - Yongjun Gao
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, State Key Laboratory of New Pharmaceutical Preparations and Excipients, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province (22567635H), Hebei Research Center of the Basic Discipline of Synthetic Chemistry, Hebei University, Baoding, Hebei, 071002, P. R. China.
| | - Zhong-Quan Liu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210023, P. R. China.
| | - Zejiang Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, State Key Laboratory of New Pharmaceutical Preparations and Excipients, College of Chemistry and Materials Science, Key Laboratory of Chemical Biology of Hebei Province (22567635H), Hebei Research Center of the Basic Discipline of Synthetic Chemistry, Hebei University, Baoding, Hebei, 071002, P. R. China.
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8
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Guo Y, Liao H, Pan M, Zhao C, Qian Y, Liu X, Rong L. Visible-Light-Initiated Catalyst-Free Radical Annulation Reactions of 1,6-Enynes and Aryl Sulfonyl Bromide to Assemble Sulfonation/Bromination Succinimide Derivatives. J Org Chem 2024; 89:3857-3867. [PMID: 38386475 DOI: 10.1021/acs.joc.3c02693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
In the present study, the environment-friendly visible-light-promoted strategy is used to perform an efficient, simple, and straightforward photocatalytic succinimide derivative synthesis from the reaction of 1,6-enynes and aryl sulfonyl bromide at room temperature under air ambient conditions. This method features mild conditions, broad substrate scope, high yields, and excellent configurational selectivity. In addition, all the atoms of the substrates involved in the reaction converge in the product structures, showing a high atomic economy. Moreover, the most important characteristic of this study is that no photocatalyst and additives are used, while the key factor that triggers the reaction is visible light, indicating that this study has an important practical value.
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Affiliation(s)
- Yu Guo
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P. R. China
| | - Hailin Liao
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P. R. China
| | - Mei Pan
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P. R. China
| | - Congcong Zhao
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P. R. China
| | - Yuliang Qian
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P. R. China
| | - Xiaoqin Liu
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P. R. China
| | - Liangce Rong
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P. R. China
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9
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Zhu S, Sun Y, Pan Y, Chen X, Yu H, Han Y, Yan C, Shi Y, Hou H. Visible-Light-Mediated Radical Hydroalkylative Cyclization of 1,6-Enynes. J Org Chem 2023; 88:16639-16643. [PMID: 37976542 DOI: 10.1021/acs.joc.3c01433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
A radical hydroalkylative cyclization approach accessing various alkenyl heterocyclic compounds was developed using dimethyl malonate and 1,6-enynes in the presence of visible-light photoredox catalysis. The use of Ir(dtbbpy)(ppy)2PF6 as a photosensitizer enables carbon atom radical formation and initiates the cascade cyclization reaction under mild conditions.
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Affiliation(s)
- Shaoqun Zhu
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Yuejie Sun
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Yingjie Pan
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Xiaoyun Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212005, China
| | - Huaguang Yu
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, College of Optoelectronic Materials and Technology, Jianghan University, Wuhan 430056, China
| | - Ying Han
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Chaoguo Yan
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Yaocheng Shi
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Hong Hou
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
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10
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Xue L, Song X, Zhang X, Fan X. Synthesis of O-Heterocycle Spiro-Fused Cyclopentaquinolinones and Cyclopentaindenes through Visible Light-Induced Radical Cyclization Reactions. J Org Chem 2023; 88:12641-12657. [PMID: 37591490 DOI: 10.1021/acs.joc.3c01317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
Presented herein is an effective and sustainable synthesis of O-heterocycle spiro-fused cyclopentaquinolinone and cyclopentaindene derivatives through light-driven cascade reactions of N-(o-ethynylaryl)acrylamides or 2-(2-(phenylethynyl)benzyl)acrylate with various O-heterocycles. Experimental mechanistic studies revealed that these reactions are initiated by visible light-induced radical formation from O-heterocycle and its regioselective addition onto the acrylamide or acrylate moiety followed by 6-exo-dig and 5-endo-trig cascade radical annulation, which is terminated by single electron oxidation and proton elimination. Compared with previously reported synthetic methods for similar purposes, this newly developed protocol has advantages such as a broad substrate scope, extremely mild reaction conditions, excellent atom-economy, high efficiency, and good compatibility with diverse functional groups. With all of these merits, this method is expected to find wide applications in the related research arena.
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Affiliation(s)
- Lian Xue
- Pingyuan Laboratory, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Xia Song
- Pingyuan Laboratory, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Xinying Zhang
- Pingyuan Laboratory, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Xuesen Fan
- Pingyuan Laboratory, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
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11
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Wang S, Zhao J, Ying J, Wu XF. Palladium-Catalyzed Carbonylative Synthesis of Polycyclic 3,4-Dihydroquinolin-2(1 H)-one Scaffolds Containing Perfluoroalkyl and Carbonyl Units. Org Lett 2023. [PMID: 37410885 DOI: 10.1021/acs.orglett.3c01879] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/08/2023]
Abstract
A palladium-catalyzed one-pot two-step radical mediated carbonylative cyclization of 1,7-enynes with perfluoroalkyl iodides and Mo(CO)6 has been developed for the construction of polycyclic 3,4-dihydroquinolin-2(1H)-one scaffolds. This method realizes a facile synthesis of various polycyclic 3,4-dihydroquinolin-2(1H)-one derivatives containing perfluoroalkyl and carbonyl units in high yields. Moreover, modifications of several bioactive molecules were demonstrated using this protocol.
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Affiliation(s)
- Shangyuan Wang
- School of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Jiajun Zhao
- School of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Jun Ying
- School of Chemistry and Chemical Engineering, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Xiao-Feng Wu
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023 Dalian, Liaoning China
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Straβe 29a, 18059 Rostock, Germany
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12
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Zhu SS, Liu JK, Qin LZ, Wang J, Duan X, Yuan X, Qiu JK, Guo K. Visible-Light-Promoted Cyanoalkylation/Cyclization Cascade Reaction to Assemble Polyheterocycles in Continuous Flow. J Org Chem 2023; 88:2057-2068. [PMID: 36710438 DOI: 10.1021/acs.joc.2c02336] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
This study describes a visible-light-induced cascade reaction for preparing cyanoalkyl-containing polyheterocycles initiated by the photoinduced radical cascade addition of N-arylacrylamide derivatives using cyclic oxime esters as radical sources followed by cyanoalkyl-mediated cyclization. This protocol features outstanding functional group compatibility, providing a variety of desired phenanthridine derivatives in moderate to good yields. Moreover, the application of a microflow technique enhanced these reactions compared with the equivalent batch reaction, significantly reducing reaction times to 10 min.
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Affiliation(s)
- Shan-Shan Zhu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Road South, Nanjing 211816, P. R. China
| | - Ji-Kang Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Road South, Nanjing 211816, P. R. China
| | - Long-Zhou Qin
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Road South, Nanjing 211816, P. R. China
| | - Jian Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Road South, Nanjing 211816, P. R. China
| | - Xiu Duan
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Road South, Nanjing 211816, P. R. China
| | - Xin Yuan
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Road South, Nanjing 211816, P. R. China
| | - Jiang-Kai Qiu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Road South, Nanjing 211816, P. R. China
| | - Kai Guo
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Road South, Nanjing 211816, P. R. China
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13
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Long L, Li X, Tu M, Zhang Y, Qiao L, Luo W, Chen Z. Hypervalent iodine( iii) promoted C–H/C–H amination/annulation tandem reactions: synthesis of benzimidazoles from simple anilines and aldehydes. Org Chem Front 2023. [DOI: 10.1039/d2qo01644c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A novel hypervalent iodine mediated cascade transformation of anilines and aldehydes to benzimidazoles was developed.
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Affiliation(s)
- Lipeng Long
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China
| | - Xin Li
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China
| | - Mengshi Tu
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China
| | - Yekun Zhang
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China
| | - Liang Qiao
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China
| | - Wenjun Luo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China
| | - Zhengwang Chen
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China
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14
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Tang B, Liu Y, Lian Y, Liu H. Radical annulation using a radical reagent as a two-carbon unit. Org Biomol Chem 2022; 20:9272-9281. [PMID: 36383141 DOI: 10.1039/d2ob01833k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Radical annulation has emerged as one of the most efficient and straightforward methods for synthesizing cyclic/polycyclic compounds as the core structures can be constructed through a single procedure comprising multiple bond-forming steps. Particularly, radical annulation using a radical reagent as a cyclization partner and two-carbon unit greatly expands the diversity of cyclic skeletons and the functionality of radical reagents. We herein have highlighted the representative processes reported in the past decade for radical annulation using a radical reagent as a two-carbon unit, including [2 + 2 + 2], [3 + 2], [4 + 2], and [5 + 2] modes, with an emphasis on their reaction mechanisms. These studies not only pave the way toward annulation but also provide insight into the exploration of a new reaction mode for radical chemistry.
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Affiliation(s)
- Boxiao Tang
- Hunan Engineering Laboratory for Preparation Technology of Polyvinyl Alcohol (PVA) Fiber Material, Institute of Organic Synthesis, Huaihua University, Huaihua 418000, China.
| | - Yilin Liu
- Hunan Engineering Laboratory for Preparation Technology of Polyvinyl Alcohol (PVA) Fiber Material, Institute of Organic Synthesis, Huaihua University, Huaihua 418000, China.
| | - Yan Lian
- Hunan Engineering Laboratory for Preparation Technology of Polyvinyl Alcohol (PVA) Fiber Material, Institute of Organic Synthesis, Huaihua University, Huaihua 418000, China.
| | - Hongxin Liu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325035, China.
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15
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Highly efficient synthesis of indoline via palladium catalyzed C–H amination of C(sp2)–H bond using tert-butyl peroxybenzoate as an oxidant. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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16
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Wang S, Zhang J, Wang JS, Ying J, Wu XF. Palladium-Catalyzed Cascade Carbonylative Synthesis of Perfluoroalkyl and Carbonyl-Containing 3,4-Dihydroquinolin-2(1 H)-one Derivatives. Org Lett 2022; 24:8843-8847. [DOI: 10.1021/acs.orglett.2c03636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Shangyuan Wang
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Jiangjie Zhang
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Jian-Shu Wang
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Jun Ying
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Xiao-Feng Wu
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023 Dalian, Liaoning, China
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Straβe 29a, 18059 Rostock, Germany
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17
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Sivanantham M, Jennifer G A, Varathan E, Ramasamy M, Senadi GC. Iodo-sulphonylation of 1,6-enynones: a metal-free strategy to synthesize N-substituted succinimides. Org Biomol Chem 2022; 20:7942-7948. [PMID: 36178240 DOI: 10.1039/d2ob01277d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An iodine-mediated radical cyclization of 1,6-enynones with sulphonyl hydrazides using tert-butyl hydroperoxide (TBHP) as the oxidant has been developed for the synthesis of iodo-sulphonylated-succinimide derivatives. The notable advantages of the developed method are metal-free conditions, broad functional group tolerance, column chromatography-free purification, high stereoselectivity (E isomer), shorter reaction times, and the cascade construction of three new bonds (C-S, C-I, and C-C). The synthetic application of the iodo-functionality has been extended to the Heck coupling reaction with acrylonitrile and to the Suzuki coupling reaction with benzene boronic acid.
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Affiliation(s)
- Mathiyazhagan Sivanantham
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur - 603 203, Chengalpattu District, Tamil Nadu, India.
| | - Abigail Jennifer G
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur - 603 203, Chengalpattu District, Tamil Nadu, India.
| | - Elumalai Varathan
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur - 603 203, Chengalpattu District, Tamil Nadu, India.
| | - Mohankumar Ramasamy
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur - 603 203, Chengalpattu District, Tamil Nadu, India. .,Interdisciplinary Institute of Indian System of Medicine, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur - 603 203, Chengalpattu District, Tamil Nadu, India.
| | - Gopal Chandru Senadi
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur - 603 203, Chengalpattu District, Tamil Nadu, India.
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18
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Xu P, Daniliuc CG, Bergander K, Stein C, Studer A. Synthesis of Five-Membered Ring Systems Bearing gem-Difluoroalkenyl and Monofluoroalkenyl Substituents via Radical β-Bromo Fragmentation. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03775] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Peng Xu
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstrasse 40, Münster 48149, Germany
| | - Constantin G. Daniliuc
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstrasse 40, Münster 48149, Germany
| | - Klaus Bergander
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstrasse 40, Münster 48149, Germany
| | - Colin Stein
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstrasse 40, Münster 48149, Germany
| | - Armido Studer
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstrasse 40, Münster 48149, Germany
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19
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Liang YQ, Xu YX, Cai ZJ, Ji SJ. Visible-light photocatalytic radical addition-translocation-cyclization to construct sulfonyl-containing azacycles. Chem Commun (Camb) 2022; 58:10206-10209. [PMID: 36000456 DOI: 10.1039/d2cc03799h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, a novel visible-light photocatalytic radical addition-translocation-cyclization (RATC) approach for the efficient synthesis of sulfonyl-containing azacycles is described. The reaction delivers a wide range of monocyclic, bicyclic and polycyclic azacycles by using easily prepared sodium sulfinates and N-homopropargylic amines as starting materials. Instead of the traditionally used toxic tin reagents and thermally hazardous azos in the RATC process, clean, renewable and sustainable visible light combined with a catalytic amount of photosensitizer is used in this process. Moreover, the successful transformation of some drug derivatives further highlights the potential application of this procedure.
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Affiliation(s)
- Yu-Qing Liang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215123, China.
| | - Yi-Xin Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215123, China.
| | - Zhong-Jian Cai
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215123, China.
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215123, China. .,Suzhou Baolidi Functional Materials Research Institute, Suzhou Xiangcheng, 215144, China
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20
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[3+2] Cycloaddition of alkyl aldehydes and alkynes enabled by photoinduced hydrogen atom transfer. Nat Commun 2022; 13:4734. [PMID: 35961987 PMCID: PMC9374768 DOI: 10.1038/s41467-022-32467-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 07/29/2022] [Indexed: 11/25/2022] Open
Abstract
[3+2] Cycloaddition is a step- and atom-economic method for the synthesis of five-membered rings. Despite the great success of 1,3-dipolar cycloadditions, the radical [3+2] annulation of alkynes remains a formidable challenge. Herein, a photoinduced decatungstate-catalyzed [3+2] cycloaddition of various internal alkynes using abundant aliphatic aldehydes as a three-carbon synthon is developed, producing elaborate cyclopentanones in 100% atom economy with excellent site-, regio-, and diastereoselectivity under mild conditions. The catalytic cycle consists of hydrogen atom abstraction from aldehydes, radical addition, 1,5-hydrogen atom transfer, anti-Baldwin 5-endo-trig cyclization, and back hydrogen abstraction. The power of this method is showcased by the late-stage elaboration of medicinally relevant molecules and total or formal synthesis of (±)-β-cuparenone, (±)-laurokamurene B, and (±)-cuparene. In contrast to the prevalence of 1,3-dipolar cycloadditions, radical [3+2] annulations of alkynes are underexplored. Here, the authors describe [3+2] cycloadditions of various internal alkynes with readily accessible aliphatic aldehydes via photoinduced decatungstate catalysis.
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21
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Chen X, Pei C, Liu B, Li J, Zou D, Wu Y, Wu Y. Copper-assisted trifluoromethylthiolation/radical cascade cyclization of alkynes to construct SCF 3-containing dioxodibenzothiazepines. Chem Commun (Camb) 2022; 58:8674-8677. [PMID: 35822922 DOI: 10.1039/d2cc02171d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mild and efficient Cu-assisted trifluoromethylthiolation/radical cascade cyclization of alkynes with readily available and stable AgSCF3 as the trifluoromethylthiolating reagent has been disclosed. This transformation provides an opportunity to construct a series of potential medicinally valuable trifluoromethylthio-substituted dioxodibenzothiazepines with wide functional group compatibility. This protocol opens up a new avenue for the construction of useful trifluoromethylthiolated seven-membered N-heterocycles.
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Affiliation(s)
- Xiaoyu Chen
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China.
| | - Congcong Pei
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China.
| | - Bo Liu
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China.
| | - Jingya Li
- Tetranov Biopharm, LLC., Zhengzhou, 450052, People's Republic of China
| | - Dapeng Zou
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China.
| | - Yangjie Wu
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China.
| | - Yusheng Wu
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China. .,Tetranov International, Inc., 100 Jersey Avenue, Suite A340, New Brunswick, NJ, 08901, USA.
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22
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Jiang HM, Sun Q, Jiang JP, Qin JH, Ouyang XH, Song RJ. Copper‐Catalyzed Oxidative 1,2‐Alkylarylation of Styrenes with Unactivated C(sp3)‐H Alkanes and Electron‐Rich Aromatics via C(sp3)‐H/C(sp2)‐H Functionalization. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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23
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Feng J, Zhang F, Shu C, Zhu G. Copper‐Catalyzed
1,2,
5‐Trifunctionalization
of Terminal Alkynes Using
SR
as a Transient Directing Group for Radical Translocation. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202200092] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jian Feng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry Zhejiang Normal University 688 Yingbin Road Jinhua 321004 P. R. China
| | - Fang Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry Zhejiang Normal University 688 Yingbin Road Jinhua 321004 P. R. China
| | - Chenyun Shu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry Zhejiang Normal University 688 Yingbin Road Jinhua 321004 P. R. China
| | - Gangguo Zhu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry Zhejiang Normal University 688 Yingbin Road Jinhua 321004 P. R. China
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24
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Qian Y, Xu L, Tong Y, Liu T, Xia Y, Hu D, Rong L. Synthesis of 2-Substituted Cyclopenta[c]chromene Derivatives by α-C Insertion of Acetonitrile (Acetone). CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202107043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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25
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Yue B, Wu X, Zhu C. Recent Advances in Vinyl Radical-Mediated Hydrogen Atom Transfer. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202108027] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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26
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Le S, Bai Y, Qiu J, Zhang Z, Zheng H, Zhu G. Access to cyclopentenones via copper-catalyzed 5- endo trifluoromethylcarbocyclization of ynones. Org Chem Front 2022. [DOI: 10.1039/d2qo00843b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A copper-catalyzed 5-endo-selective trifluoromethylcarbocyclization of ynones is realized for the direct construction of trifluoromethylated cyclopentenones.
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Affiliation(s)
- Siya Le
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
| | - Yihui Bai
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
| | - Jiayan Qiu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
| | - Zuxiao Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
| | - Hanliang Zheng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
| | - Gangguo Zhu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
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27
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Jin Z, Cai Y, Wang Z, Jin H, Liu Y, Zhou B. Nickel-catalyzed cascade hydrosilylation/cyclization of 1,7-enynes leading to silyl-containing quinolinones. Org Biomol Chem 2022; 20:8838-8842. [DOI: 10.1039/d2ob01771g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
In this paper, we disclose a nickel-catalyzed cascade hydrosilylation/cyclization reaction of 1,7-enynes with bulky silanes. The reaction features excellent chemoselectivity, broad functional group tolerance, and mild reaction conditions.
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Affiliation(s)
- Zhou Jin
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Yun Cai
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Zhengwen Wang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Hongwei Jin
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Yunkui Liu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Bingwei Zhou
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
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28
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Xu J, Zhang Y, Han J, Su A, Qiao H, Zhang C, Tang J, Shen X, Sun B, Yu W, Zhai S, Wang X, Wu Y, Su W, Duan H. Providing direction for mechanistic inferences in radical cascade cyclization using Transformer model. Org Chem Front 2022. [DOI: 10.1039/d2qo00188h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Even in modern organic chemistry, predicting or proposing a reaction mechanism and speculating on reaction intermediates remains challenging. For example, it is challenging to predict the regioselectivity of radical attraction...
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29
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Li JZ, Mei L, Yu XC, Wang LT, Cai XE, Li T, Wei WT. C-centered radical-initiated cyclization by directed C(sp 3)–H oxidative functionalization. Org Chem Front 2022. [DOI: 10.1039/d2qo01128j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
C(sp3)–H functionalization is attracting constant attention. This review emphasizes C-centered radicals initiated cyclization strategies by directed C(sp3)–H oxidative functionalization since 2012.
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Affiliation(s)
- Jiao-Zhe Li
- Institute of Drug Discovery Technology, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Lan Mei
- Institute of Drug Discovery Technology, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Xuan-Chi Yu
- Institute of Drug Discovery Technology, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Ling-Tao Wang
- Institute of Drug Discovery Technology, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Xue-Er Cai
- Institute of Drug Discovery Technology, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
| | - Ting Li
- College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan, 473061, China
| | - Wen-Ting Wei
- Institute of Drug Discovery Technology, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China
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30
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Zheng H, Su J, Zhou Y, Zhu G. Recent Advances on 5- endo-Trig Radical Cyclization of All-Carbon Systems. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202209029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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31
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Yi R, Li J, Wang D, Wei W. Radical Cascade Cyclization Involving C(sp 3)—H Functionalization of Unactivated Cycloalkanes. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202208001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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32
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Li Q, Cai Y, Hu Y, Jin H, Chen F, Liu Y, Zhou B. Nickel-catalyzed cyclization of 1,7-enynes for the selective synthesis of dihydrocyclobuta[ c]quinolin-3-ones and benzo[ b]azocin-2-ones. Chem Commun (Camb) 2021; 57:11657-11660. [PMID: 34671793 DOI: 10.1039/d1cc04750g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
We herein described a nickel-catalyzed cyclization of N-(o-ethynylaryl)acrylamides for the selective synthesis of dihydrocyclobuta[c]quinolin-3-ones and benzo[b]azocin-2-ones. The two varied products could be easily obtained by tuning the reaction temperature. This reaction features easy temperature-control, high efficiency, and gram-scale synthesis.
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Affiliation(s)
- Qiao Li
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China. .,Institute of Pharmaceutical Science and Technology, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Yun Cai
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China.
| | - Yuanyuan Hu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China.
| | - Hongwei Jin
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China.
| | - Fener Chen
- Institute of Pharmaceutical Science and Technology, Zhejiang University of Technology, Hangzhou, 310014, China.,Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai, 200433, China.
| | - Yunkui Liu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China.
| | - Bingwei Zhou
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China.
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33
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Kang QQ, Zhang WK, Ge GP, Zheng H, Wei WT. The construction of benzimidazo[2,1- a]isoquinolin-6(5 H)-ones from N-methacryloyl-2-phenylbenzoimidazoles through radical strategies. Org Biomol Chem 2021; 19:8874-8885. [PMID: 34610071 DOI: 10.1039/d1ob01465j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Benzimidazo[2,1-a]isoquinolin-6(5H)-one constitutes a structurally unique class of tetracyclic N-heterocycles that are found throughout a myriad of biologically active natural products, pharmaceutical compounds, and functional materials. Various synthetic routes for the preparation of benzimidazo[2,1-a]isoquinolin-6(5H)-ones have been reported. In particular, the use of N-methacryloyl-2-phenylbenzoimidazoles to construct benzimidazo[2,1-a]isoquinolin-6(5H)-ones through various radical strategies have attracted widespread attention due to the versatility and simple preparation of raw materials, as well as the step-economy and mild reaction conditions. Using representative examples, we highlight significant progress in the synthesis of benzimidazo[2,1-a]isoquinolin-6(5H)-ones, including the selection of the catalytic system, substrate scope, mechanistic understanding, and applications. The contents of this review focus on the development of C-, S-, P-, and Si-centered radical addition-intramolecular cyclization strategies.
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Affiliation(s)
- Qing-Qing Kang
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Wei-Kang Zhang
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Guo-Ping Ge
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
| | - Hongxing Zheng
- Institution of Functional Organic Molecules and Materials, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, China
| | - Wen-Ting Wei
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
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34
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Behera BK, Sahu AK, Devi NR, Saikia AK. K 2S 2O 8-Mediated Synthesis of Highly Functionalized Pyrroles via Oxidative Self-Dimerization of N-Propargylamines. J Org Chem 2021; 86:12481-12493. [PMID: 34463507 DOI: 10.1021/acs.joc.1c00471] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient methodology has been developed for the synthesis of tetra- and pentasubstituted pyrroles via oxidative self-dimerization of N-propargylamines catalyzed by silver benzoate in the presence of K2S2O8 in good yields. The protocol provides a simple route for the synthesis of both tetra- and pentasubstituted pyrroles with two carbonyl groups in the side chain. The methodology can be extended toward the synthesis of pyrrolo[3,4-d]pyridazine.
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Affiliation(s)
- Bipin Kumar Behera
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Archana Kumari Sahu
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Ngangbam Renubala Devi
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Anil K Saikia
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
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35
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Nozawa-Kumada K, Matsuzawa Y, Ono K, Shigeno M, Kondo Y. Copper-catalyzed aerobic double functionalization of benzylic C(sp 3)-H bonds for the synthesis of 3-hydroxyisoindolinones. Chem Commun (Camb) 2021; 57:8604-8607. [PMID: 34368822 DOI: 10.1039/d1cc02870g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A copper-catalyzed aerobic 3-hydroxyisoindolinone synthesis was developed via the benzylic double C(sp3)-H functionalization of 2-alkylbenzamides. In this reaction, molecular oxygen was used as both an oxidant for C(sp3)-H functionalization and an oxygen source. Our method can be extended to diverse benzylic C(sp3)-H bonds and shows excellent functional group tolerance.
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Affiliation(s)
- Kanako Nozawa-Kumada
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
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36
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Zhang M, Shen L, Dong S, Li B, Meng F, Si W, Yang W. DTBP‐Mediated Cascade Spirocyclization and Dearomatization of Biaryl Ynones: Facile Access to Spiro[5.5]trienones through C(sp
3
)−H Bond Functionalization. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100656] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ming‐Ming Zhang
- Guangling College and Institute of Pesticide of School of Horticulture and Plant Protection Yangzhou University Yangzhou 225009 P. R. China
| | - Liu‐Yu Shen
- Guangling College and Institute of Pesticide of School of Horticulture and Plant Protection Yangzhou University Yangzhou 225009 P. R. China
| | - Sa Dong
- Guangling College and Institute of Pesticide of School of Horticulture and Plant Protection Yangzhou University Yangzhou 225009 P. R. China
| | - Bing Li
- Guangling College and Institute of Pesticide of School of Horticulture and Plant Protection Yangzhou University Yangzhou 225009 P. R. China
| | - Fei Meng
- Guangling College and Institute of Pesticide of School of Horticulture and Plant Protection Yangzhou University Yangzhou 225009 P. R. China
| | - Wei‐Jie Si
- College of Chemistry and Chemical Engineering Anyang Normal University Anyang 455000 P. R. China
| | - Wen‐Chao Yang
- Guangling College and Institute of Pesticide of School of Horticulture and Plant Protection Yangzhou University Yangzhou 225009 P. R. China
- Joint International Research Laboratory of Agriculture & Agri-Product Safety Yangzhou University Yangzhou 225009 P. R. China
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37
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Cai T, Zhang Z, Li P, Sun T, Chen X, Ni Y, Chen J, Xu H, Xu Y, Wu C, Shen R, Gao Y. Radical Cascade Bicyclization/Aromatization of 1,7‐Enynes with 1,3‐Dicarbonyl Compounds towards 2,3‐Dihydro‐1
H
‐cyclopenta[
a
]naphthalenes. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100678] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Tao Cai
- College of Chemistry and Chemical Engineering Shaoxing University Shaoxing 312000 People's Republic of China
- Zhejiang Engineering Research Center of Fat-Soluble Vitamin Shaoxing 312000 People's Republic of China
| | - Zhebing Zhang
- College of Chemistry and Chemical Engineering Shaoxing University Shaoxing 312000 People's Republic of China
| | - Peiqin Li
- College of Chemistry and Chemical Engineering Shaoxing University Shaoxing 312000 People's Republic of China
| | - Tao Sun
- College of Chemistry and Chemical Engineering Shaoxing University Shaoxing 312000 People's Republic of China
| | - Xinyu Chen
- College of Chemistry and Chemical Engineering Shaoxing University Shaoxing 312000 People's Republic of China
| | - Yuqi Ni
- College of Chemistry and Chemical Engineering Shaoxing University Shaoxing 312000 People's Republic of China
| | - Jianhui Chen
- College of Chemistry and Chemical Engineering Shaoxing University Shaoxing 312000 People's Republic of China
- Zhejiang Engineering Research Center of Fat-Soluble Vitamin Shaoxing 312000 People's Republic of China
| | - Huiting Xu
- College of Chemistry and Chemical Engineering Shaoxing University Shaoxing 312000 People's Republic of China
- Zhejiang Engineering Research Center of Fat-Soluble Vitamin Shaoxing 312000 People's Republic of China
| | - Yanfei Xu
- College of Chemistry and Chemical Engineering Shaoxing University Shaoxing 312000 People's Republic of China
- Zhejiang Engineering Research Center of Fat-Soluble Vitamin Shaoxing 312000 People's Republic of China
| | - Chunlei Wu
- College of Chemistry and Chemical Engineering Shaoxing University Shaoxing 312000 People's Republic of China
- Zhejiang Engineering Research Center of Fat-Soluble Vitamin Shaoxing 312000 People's Republic of China
| | - Runpu Shen
- College of Chemistry and Chemical Engineering Shaoxing University Shaoxing 312000 People's Republic of China
- Zhejiang Engineering Research Center of Fat-Soluble Vitamin Shaoxing 312000 People's Republic of China
| | - Yuzhen Gao
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 People's Republic of China
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38
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Liu H, Yu JT, Pan C. Diacyl peroxides: practical reagents as aryl and alkyl radical sources. Chem Commun (Camb) 2021; 57:6707-6724. [PMID: 34137395 DOI: 10.1039/d1cc02322e] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Diacyl peroxides, which can be easily synthesized from corresponding carboxylic acids, are commonly utilized as radical initiators and one electron oxidants. Under thermal, transition-metal catalysis or irradiation conditions the cleavage of relatively weak O-O bonds would occur followed by CO2 extrusion to generate the corresponding aryl or alkyl radicals. Thus, diacyl peroxides can be employed as ideal arylating and alkylating reagents in organic synthesis, including C-H/N-H arylation/alkylation, aryl/alkyl radical addition to unsaturated bonds, hetero arylation/alkylation, eliminative arylation/alkylation, perfluoroalkylation etc. Moreover, these arylation/alkylation protocols have been successfully utilized in the synthesis and late-stage functionalization of natural products as well as bioactive molecules. In this review, recent advances on arylation and alkylation using diacyl peroxides as aryl and alkyl radical sources are summarized and discussed.
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Affiliation(s)
- Han Liu
- School of Petrochemical Engineering, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, P. R. China.
| | - Jin-Tao Yu
- School of Petrochemical Engineering, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, P. R. China.
| | - Changduo Pan
- School of Petrochemical Engineering, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, P. R. China. and School of Chemistry & Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, P. R. China.
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39
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Dong M, Wang D, Tong X. PhI(OAc) 2-Mediated Dihalogenative Cyclization of 1,6-Enyne with Lithium Halide. Org Lett 2021; 23:3588-3592. [PMID: 33899488 DOI: 10.1021/acs.orglett.1c00987] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The dihalogenative cyclization of 1,6-enyne with the assistance of PhI(OAc)2 and lithium halide is presented. A plausible radical mechanism is proposed, which consists of addition of halogen radical to alkene, 5-exo-dig radical cyclization of enyne and halogenation via radical coupling. The alkenyl- and alkyl-halide groups in the resulted pyrrolidine products have been demonstrated to be facile handles for further transformations.
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Affiliation(s)
- Ming Dong
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Danfeng Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Xiaofeng Tong
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
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40
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Zuo HD, Zhu SS, Hao WJ, Wang SC, Tu SJ, Jiang B. Copper-Catalyzed Asymmetric Deconstructive Alkynylation of Cyclic Oximes. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00842] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Hang-Dong Zuo
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Shan-Shan Zhu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Wen-Juan Hao
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Shi-Chao Wang
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Bo Jiang
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
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41
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Wei WT, Li Q, Zhang MZ, He WM. N-Radical enabled cyclization of 1,n-enynes. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(20)63702-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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42
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Mao K, Dai L, Chen A, Liu Y, Liu X, Wang C, Rong L. Radical Annulation for the Synthesis of Cyclopenta[c]chromene Derivatives. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100066] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kaimin Mao
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 Jiangsu P. R. China
| | - Lei Dai
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 Jiangsu P. R. China
| | - Ang Chen
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 Jiangsu P. R. China
| | - Yun Liu
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 Jiangsu P. R. China
| | - Xiaoqin Liu
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 Jiangsu P. R. China
| | - Chang Wang
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 Jiangsu P. R. China
| | - Liangce Rong
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 Jiangsu P. R. China
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43
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Gu Y, Dai L, Zhang J, Lu X, Liu X, Wang C, Zhang J, Rong L. Silver-Catalyzed Radical Cascade Sulfonation/Cycloaddition for the Construction of Multifunctional Succimides Containing Separable Z/ E-Isomers. J Org Chem 2021; 86:2173-2183. [PMID: 33475351 DOI: 10.1021/acs.joc.0c02275] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A silver-catalyzed cascade cycloaddition of aza-1,6-enynes, affording multifunctional succimide frameworks initiated by the arylsulfonyl radical addition, has been developed. This process shows mild reaction conditions, excellent structural selectivity, and broad functional group tolerance. In addition, the Z/E-isomers can be easily separated, which provides an efficient method for obtaining pure Z/E-configuration products.
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Affiliation(s)
- Yan Gu
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Lei Dai
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Jinghang Zhang
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Xinchi Lu
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Xiaoqin Liu
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Chang Wang
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
| | - Jinpeng Zhang
- College of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu 221006, People's Republic of China
| | - Liangce Rong
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, People's Republic of China
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44
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Abbasi Kejani A, Khosravi H, Rominger F, Balalaie S, Breit B. Metal-Free Domino Oligocyclization Reactions of Enynals and Enynones with Molecular Oxygen. Org Lett 2021; 23:1291-1295. [DOI: 10.1021/acs.orglett.0c04272] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Alireza Abbasi Kejani
- Peptide Chemistry Research Center, K. N. Toosi University of Technology, P.O. Box 15875-4416, Tehran 15875-4416, Iran
| | - Hormoz Khosravi
- Peptide Chemistry Research Center, K. N. Toosi University of Technology, P.O. Box 15875-4416, Tehran 15875-4416, Iran
| | - Frank Rominger
- Organisch-Chemisches Institut der Universität Heidelberg, Im Neuenheimer Feld 270, D-69120 Heidelberg, Germany
| | - Saeed Balalaie
- Peptide Chemistry Research Center, K. N. Toosi University of Technology, P.O. Box 15875-4416, Tehran 15875-4416, Iran
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah 6715847141, Iran
| | - Bernhard Breit
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstrasse 21, D-79104 Freiburg im Breisgau, Germany
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45
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Mao K, Bian M, Dai L, Zhang J, Yu Q, Wang C, Rong L. Metal-Free Radical Annulation of Oxygen-Containing 1,7-Enynes: Configuration-Selective Synthesis of ( E)-3-((Arylsulfonyl)methyl)-4-Substituted Arylidenechromene Derivatives. Org Lett 2021; 23:218-224. [PMID: 33351635 DOI: 10.1021/acs.orglett.0c03946] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel strategy for the synthesis of (E)-3-((arylsulfonyl)methyl)-4-substituted benzylidenechromene derivatives via a metal-free radical annulation reaction of oxygen-containing 1,7-enynes with thiosulfonates has been developed. The reaction shows broad substrate scope, wide functional group tolerance, and moderate to excellent yields. Moreover, thiosulfonates were well driven to achieve the bifunctionalization reaction of oxo-1,7-enynes which derived from aliphatic alkynes. In addition, the (E)-configuration of the products was highly controlled by the structure of 1,7-enyne.
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Affiliation(s)
- Kaimin Mao
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, P.R. China
| | - Mouwang Bian
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, P.R. China
| | - Lei Dai
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, P.R. China
| | - Jinghang Zhang
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, P.R. China
| | - Qiuyu Yu
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, P.R. China
| | - Chang Wang
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, P.R. China
| | - Liangce Rong
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, P.R. China
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46
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Liu Q, Lv Y, Liu R, Zhao X, Wang J, Wei W. Catalyst- and additive-free selective sulfonylation/cyclization of 1,6-enynes with arylazo sulfones leading to sulfonylated γ-butyrolactams. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.11.059] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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47
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Liao J, Yang X, Ouyang L, Lai Y, Huang J, Luo R. Recent advances in cascade radical cyclization of radical acceptors for the synthesis of carbo- and heterocycles. Org Chem Front 2021. [DOI: 10.1039/d0qo01453b] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
This review is devoted to highlighting main achievements in the development of cascade radical cyclization of radical acceptors for the synthesis of carbo- and heterocycles.
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Affiliation(s)
- Jianhua Liao
- School of Pharmaceutical Sciences
- Gannan Medical University
- Ganzhou
- P. R. China
| | - Xiao Yang
- School of Pharmaceutical Sciences
- Gannan Medical University
- Ganzhou
- P. R. China
| | - Lu Ouyang
- School of Pharmaceutical Sciences
- Gannan Medical University
- Ganzhou
- P. R. China
| | - Yinlong Lai
- College of Chemistry and Environmental Engineering
- Shaoguan University
- Shaoguan 512005
- China
| | - Jiuzhong Huang
- School of Pharmaceutical Sciences
- Gannan Medical University
- Ganzhou
- P. R. China
| | - Renshi Luo
- School of Pharmaceutical Sciences
- Gannan Medical University
- Ganzhou
- P. R. China
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48
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Zhou Y, Zhao P, Yu XX, Geng X, Wang C, Huang C, Yang H, Zhao ZY, Wu AX. Radical Tandem Bicyclization Triggered by the α-Position of α,β-Unsaturated Ketones Bearing Nonterminal 1,6-Enynes: Synthesis of the 5 H-Benzo[ a]fluoren-5-one Skeleton. Org Lett 2020; 22:8359-8364. [PMID: 33040530 DOI: 10.1021/acs.orglett.0c02990] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel method for the synthesis of 5H-benzo[a]fluoren-5-one from inactive nonterminal 1,6-alkynes through a free radical tandem bicyclization process has been established. This process achieved a continuous cyclization triggered rarely by the α-position of α,β-unsaturated ketones. The reaction constructed three C-C bonds in one step with the readily accessible substrates and excellent substrate compatibility.
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Affiliation(s)
- You Zhou
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Peng Zhao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xiao-Xiao Yu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xiao Geng
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Can Wang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Chun Huang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Hai Yang
- The State Key Laboratory of Refractories and Metallurgy, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, P. R. China
| | - Zhi-Yong Zhao
- The State Key Laboratory of Refractories and Metallurgy, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, P. R. China
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
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49
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Liu HY, Lu Y, Li Y, Li JH. Photocatalytic Decarboxylative [2 + 2 + m] Cyclization of 1,7-Enynes Mediated by Tricyclohexylphosphine and Potassium Iodide. Org Lett 2020; 22:8819-8823. [DOI: 10.1021/acs.orglett.0c03182] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Hui-Yuan Liu
- Key Laboratory of Jiangxi Province for Persistent Pollutant Control and Resource Recycling, Nanchang Hangkong University, Nanchang 330063, China
| | - Yuan Lu
- Key Laboratory of Jiangxi Province for Persistent Pollutant Control and Resource Recycling, Nanchang Hangkong University, Nanchang 330063, China
| | - Yang Li
- Key Laboratory of Jiangxi Province for Persistent Pollutant Control and Resource Recycling, Nanchang Hangkong University, Nanchang 330063, China
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutant Control and Resource Recycling, Nanchang Hangkong University, Nanchang 330063, China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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Liu Q, Mei Y, Wang L, Ma Y, Li P. Visible‐Light‐Induced Radical Cascade Cyclizations of 1,7‐Enynes with Sulfinic Acids: Direct Access to Sulfonated Chromanes and Sulfonated Tetrahydroquinolines under Metal‐Free Conditions. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000846] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Qi Liu
- Advanced Research Institute and Department of Chemistry Taizhou University Taizhou Zhejiang 318000 People's Republic of China
- Department of Chemistry Huaibei Normal University Huaibei Anhui 235000 People's Republic of China
| | - Yousheng Mei
- Department of Chemistry Huaibei Normal University Huaibei Anhui 235000 People's Republic of China
| | - Lei Wang
- Advanced Research Institute and Department of Chemistry Taizhou University Taizhou Zhejiang 318000 People's Republic of China
- Department of Chemistry Huaibei Normal University Huaibei Anhui 235000 People's Republic of China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Shanghai 200032 People's Republic of China
| | - Yongmin Ma
- Advanced Research Institute and Department of Chemistry Taizhou University Taizhou Zhejiang 318000 People's Republic of China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Shanghai 200032 People's Republic of China
| | - Pinhua Li
- Department of Chemistry Huaibei Normal University Huaibei Anhui 235000 People's Republic of China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Shanghai 200032 People's Republic of China
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