1
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Yan ZH, Yan Y, Wei ZL, Liao WW. Electrochemical Trifluoromethylation/Bicyclization of N-Cyanamide Alkenes: Synthesis of Bicyclic Amidine Derivatives. J Org Chem 2024; 89:2718-2725. [PMID: 38306613 DOI: 10.1021/acs.joc.3c02777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2024]
Abstract
An anodically oxidizing trifluoromethylation cascade of N-cyanamide alkene bearing two electronically differentiated olefin moieties was reported, in which various N-unsaturated acyl cyanamide alkenes and CF3SO2Na acting as readily available starting materials furnished nonaromatic fused azaheterobicyclic compounds in a highly efficient and sustainable manner. The broad substrate scope, facile scalability, and sustainability enabled this electrochemical process to be an appealing complement for trifluoromethylated cyclic amidines.
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Affiliation(s)
- Zhi-Hua Yan
- Department of Organic Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P R China
| | - Yan Yan
- State Key Lab of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Zhong-Lin Wei
- Department of Organic Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P R China
| | - Wei-Wei Liao
- Department of Organic Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P R China
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2
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Jiang B, Fan TG, Ran YS, Shen YT, Zhang C, Jiang W, Li YM. Oxidative cascade cyclization of N-arylacrylamides with TMSN 3. Org Biomol Chem 2024; 22:1186-1193. [PMID: 38214570 DOI: 10.1039/d3ob01951a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
An azido-radical-triggered cyclization of N-(o-cyanobiaryl)acrylamides with TMSN3via a C(sp3)-N/C(sp2)-C(sp3)/C(sp2)-N bond formation cascade is described. This reaction features mild conditions and high bond-forming efficiency, making it an efficient method for the construction of azide-substituted pyridophenanthridines.
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Affiliation(s)
- Bo Jiang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China.
| | - Tai-Gang Fan
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China.
| | - Yu-Song Ran
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China.
| | - Yun-Tao Shen
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China.
| | - Cui Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China.
| | - Wei Jiang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China.
| | - Ya-Min Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China.
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3
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Ran YS, Jiang B, Shen YT, Fan TG, Jiang W, Zhang C, Li YM. Visible-Light-Promoted Cascade Cyclization of 3-Ethynyl-[1,1'-biphenyl]-2-Carbonitriles with Unsaturated α-Bromocarbonyls. Org Lett 2023; 25:7412-7416. [PMID: 37788358 DOI: 10.1021/acs.orglett.3c02938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
A visible-light-promoted cascade cyclization of 3-ethynyl-[1,1'-biphenyl]-2-carbonitriles with unsaturated α-bromocarbonyls for the synthesis of tetrahydrobenzo[mn]cyclopenta[b]acridines is described. Three C(sp3)-C(sp2) bonds, one C(sp2)-N bond, and three cycles can be formed in a single reaction through the addition of a C-centered radical to the carbon-carbon triple bond and three radical cyclizations. This reaction features mild conditions, wide substrate scope, and high bond-forming efficiency.
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Affiliation(s)
- Yu-Song Ran
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Bo Jiang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Yun-Tao Shen
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Tai-Gang Fan
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Wei Jiang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Cui Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Ya-Min Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
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4
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Fei N, Wang Y, Gu Y, Wang Z, Zhu Y, Li Y. Silver-Mediated [2 + 2 + 1] Cyclization of ortho-Propioloylbenzonitriles with Elemental Selenium: Synthesis of 4 H-indeno[1,2- c][1,2]selenazol-4-ones. J Org Chem 2023; 88:13042-13048. [PMID: 37647572 DOI: 10.1021/acs.joc.3c01172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
An efficient silver-mediated [2 + 2 + 1] cyclization protocol of ortho-propioloylbenzonitriles with elemental selenium for the synthesis of 4H-indeno[1,2-c][1,2]selenazol-4-ones has been developed. One C-Se bond, one N-Se bond, and one C-C bond were rapidly constructed in one step. The reaction might proceed via the formation of a highly reactive selenoketene intermediate, followed by intramolecular cyclization.
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Affiliation(s)
- Nana Fei
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Ye Wang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yingge Gu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Zongkang Wang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yilin Zhu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yanzhong Li
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
- Key Laboratory of Polar Materials and Devices, Ministry of Education, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
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5
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Zhang Y, Qiu G, Liu F, Zhao D, Tian M, Sun K. Visible Light-Induced Cascade Sulfonylation/Cyclization to Produce Quinoline-2,4-Diones under Metal-Free Conditions. Molecules 2023; 28:molecules28073137. [PMID: 37049899 PMCID: PMC10095780 DOI: 10.3390/molecules28073137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 03/28/2023] [Accepted: 03/28/2023] [Indexed: 04/03/2023] Open
Abstract
A general visible light-induced sulfonylation/cyclization to produce quinoline-2,4-diones was achieved under photocatalyst-free conditions. The reactions were performed at room temperature, and various substituents (halogen, alkyl, aryl) and substituted products were obtained with 29 examples within 2 h. Large-scale synthesis and derivatization study via carbonyl reduction to produce easily modified hydroxyl groups and convenient N-Ts deprotection showed the potential utility of this strategy.
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Affiliation(s)
- Yan Zhang
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Ge Qiu
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
- Correspondence: (G.Q.); (K.S.)
| | - Fei Liu
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Dongyang Zhao
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Miao Tian
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Kai Sun
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
- Correspondence: (G.Q.); (K.S.)
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6
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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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7
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Chen X, Shen YT, Zhao ZW, Hou YJ, Sun BX, Fan TG, Li YM. Oxy‐/Amino‐Difluoromethylthiolation of Alkenes: Synthesis of HCF2S‐Containing Isoxazolines and Pyrazolines. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xin Chen
- Kunming University of Science and Technology CHINA
| | - Yun-Tao Shen
- Kunming University of Science and Technology CHINA
| | - Zhi-Wei Zhao
- Kunming University of Science and Technology CHINA
| | - Yu-Jian Hou
- Kunming University of Science and Technology CHINA
| | - Bo-Xun Sun
- Kunming University of Science and Technology CHINA
| | - Tai-Gang Fan
- Kunming University of Science and Technology CHINA
| | - Ya-Min Li
- Kunming University of Science and Technology CHINA
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8
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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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9
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Guo S, Wang X, Zhao D, Zhang Z, Zhang G, Tang S, Sun K. Convenient Access to Ester‐Containing Quinolinones Through Sequential Radical Alkoxycarbonylation/Cyclization/Hydrolysis Process. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Sa Guo
- Henan Normal University School of Chemistry and Chemical Engineering School of Chemistry CHINA
| | - Xin Wang
- Yantai University School of Chemistry CHINA
| | | | - Zhiguo Zhang
- Henan Normal University School of Chemistry and Chemical Engineering School of Chemistry CHINA
| | - Guisheng Zhang
- Henan Normal University School of Chemistry and Chemical Engineering School of Chemistry CHINA
| | - Shi Tang
- Jishou University School of Chemistry CHINA
| | - Kai Sun
- Yantai University College of Chemistry and Chemical Engineering CHINA
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10
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Qin F, Wang H, Cao T, Liu Q, Xu Q, Zheng H, Zhu M, Li T, Liu Y, Wei W. Metal‐free Radical Cyclization of Olefinic 1,3‐Dicarbonyls and Olefinic Amides with Nitrile C(sp
3
)−H Bonds in Aqueous Media. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100586] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Fu‐Hua Qin
- 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 P. R. China
| | - Hui‐Zhi Wang
- 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 P. R. China
| | - Ting‐Ting Cao
- 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 P. R. China
| | - Qi‐Li Liu
- 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 P. R. China
| | - Qing Xu
- 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 P. R. China
| | - Hongxing Zheng
- Institution of Functional Organic Molecules and Materials School of Chemistry and Chemical Engineering Liaocheng University Liaocheng, Shandong 252059 P. R. China
| | - Meiling Zhu
- College of Chemistry and Pharmaceutical Engineering Nanyang Normal University Nanyang, Henan 473061 P. R. China
| | - Ting Li
- College of Chemistry and Pharmaceutical Engineering Nanyang Normal University Nanyang, Henan 473061 P. R. China
| | - Yi‐Lin Liu
- College of Chemistry and Materials Engineering Hunan Engineering Laboratory for Preparation Technology of Polyvinyl Alcohol (PVA) Fiber Material Huaihua University Huaihua, Hunan 418008 P. R. 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 P. R. China
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11
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Kang QQ, Liu Y, Wu SP, Ge GP, Zheng H, Zhang JQ, Wei WT. Selective divergent radical cyclization of 1,6-dienes with alkyl nitriles. Org Biomol Chem 2021; 19:9501-9505. [PMID: 34709283 DOI: 10.1039/d1ob01620b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
An efficient, selective, and step economical radical cyclization of 1,6-dienes with alkyl nitriles initiated by α-C(sp3)-H functionalization under the Sc(OTf)3 and Ag2CO3 system is described here. The selective divergent cyclization relies on the substitution effect at the α-position of the acrylamide moiety and nitriles, which is terminated by hydrogen abstraction, direct cyclization with the aryl ring, or further cyclization with the CN bond and hydrolysis, respectively.
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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.
| | - Yi Liu
- 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.
| | - Shi-Ping Wu
- 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, Shandong, 252059, China
| | - Jun-Qi Zhang
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou, 318000, 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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12
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Persulfate promoted tandem radical cyclization of ortho-cyanoarylacrylamides with oxamic acids for construction of carbamoyl quinoline-2,4-diones under metal-free conditions. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.04.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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13
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Xia WJ, Fan TG, Zhao ZW, Chen X, Wang XX, Li YM. Radical Annulation of 2-Cyanoaryl Acrylamides via C═C Double Bond Cleavage: Access to Amino-Substituted 2-Quinolones. Org Lett 2021; 23:6158-6163. [PMID: 34313448 DOI: 10.1021/acs.orglett.1c02281] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel annulation of 2-cyanoaryl acrylamides via C═C double bond cleavage has been developed for facile and efficient access to a broad spectrum of functionalized 4-amino-2-quinolones, which are important N-heterocycles. In this transformation, the solvent THF is demonstrated to play a crucial role, and the addition of alkyl radicals to nitrile, 1,5-hydride shift, and cleavage of the C-C bond are involved in the mechanism.
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Affiliation(s)
- Wen-Jin Xia
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Tai-Gang Fan
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Zhi-Wei Zhao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Xin Chen
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Xiang-Xiang Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Ya-Min Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
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14
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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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15
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Organocatalytic asymmetric synthesis of pyrrolo[3,2-c]quinolines via a formal [3+2] cycloaddition-lactamization cascade reaction using a bifunctional squaramide catalyst. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132115] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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16
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Xin W, Guo S, Zhang Y, Zhang Z, Zhang G, Ye Y, Sun K. Metal‐Free, organic selenium enabled radical relay azidation‐carbocyclization. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100208] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Sa Guo
- Henan Normal University CHINA
| | | | - Zhiguo Zhang
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education CHINA
| | | | | | - Kai Sun
- Anyang Normal University CHINA
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17
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Intramolecular [3+2]-cycloaddition of salicylaldehydes-based cyclic azomethine imines to access novel tetrahydrochromeno[4,3-c]pyrazolo[1,2-a]pyrazol-9-ones. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.131992] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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18
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Zhao F, Guo S, Zhang Y, Sun T, Yang B, Ye Y, Sun K. Silver-catalyzed decarboxylative radical relay difluoroalkylation–carbocyclization: convenient access to CF 2-containing quinolinones. Org Chem Front 2021. [DOI: 10.1039/d1qo01425k] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A practical Ag-catalyzed formal decarboxylation and radical difluoroalkylation–carbocyclization–hydrolysis route is established to construct a series of structurally diverse CF2-containing N-heterocycles.
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Affiliation(s)
- Feng Zhao
- School of Chemistry and Materials Science, Guizhou Education University, Guiyang 550018, P. R. China
| | - Sa Guo
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China
| | - Yan Zhang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China
| | - Ting Sun
- School of Chemistry and Materials Science, Guizhou Education University, Guiyang 550018, P. R. China
| | - Bing Yang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China
| | - Yong Ye
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Kai Sun
- College of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, Shandong, P. R. China
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19
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Sun YY, Song JC, Yang SH, Wang ZL, Zhang EX, Han QQ, Yue S. Visible light induced radical cascade cyclization of ortho-cyanoarylacrylamides with phosphine oxides for the preparation of phosphorylated quinoline-2,4(1 H,3 H)-dione. NEW J CHEM 2021. [DOI: 10.1039/d1nj03579g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Visible light induced cascade cyclization of ortho-cyanoarylacrylamides with phosphine oxides for the preparation of phosphorylated quinoline-2,4(1H,3H)-dione was presented. Products with moderate to good yields were efficiently isolated.
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Affiliation(s)
- Yuan-Yuan Sun
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, P. R. China
| | - Jing-Cheng Song
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, P. R. China
| | - Shao-Hui Yang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, P. R. China
| | - Zu-Li Wang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, P. R. China
| | - En-Xuan Zhang
- Asymchem Life Science (Tianjin) Co., Ltd, Tianjin 300457, China
| | - Qing-Qing Han
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, P. R. China
| | - Shan Yue
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, P. R. China
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20
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Yin Z, Yu Y, Li C, Mei H, Zhu K, Han J. Sulfuration‐Triggered Radical Cyclization of
o
‐Cyanoarylacrylamides to 3‐Thiomethylated Quinoline‐2,4‐dione. ChemistrySelect 2020. [DOI: 10.1002/slct.202003999] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Zizhen Yin
- Jiangsu Co–Innovation Center of Efficient Processing and Utilization of Forest Resources College of Chemical Engineering Nanjing Forestry University Nanjing 210037 China
| | - Yingjie Yu
- Jiangsu Co–Innovation Center of Efficient Processing and Utilization of Forest Resources College of Chemical Engineering Nanjing Forestry University Nanjing 210037 China
| | - Chunxiang Li
- Shandong Key Laboratory of Biochemical Analysis College of Chemistry and Molecular Engineering Qingdao University of Science and Technology Qingdao 266042 PR China
| | - Haibo Mei
- Jiangsu Co–Innovation Center of Efficient Processing and Utilization of Forest Resources College of Chemical Engineering Nanjing Forestry University Nanjing 210037 China
| | - Kai Zhu
- Jiangsu Co–Innovation Center of Efficient Processing and Utilization of Forest Resources College of Chemical Engineering Nanjing Forestry University Nanjing 210037 China
| | - Jianlin Han
- Jiangsu Co–Innovation Center of Efficient Processing and Utilization of Forest Resources College of Chemical Engineering Nanjing Forestry University Nanjing 210037 China
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21
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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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22
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Zhou N, Wu M, Kuang K, Wu S, Zhang M. Transition‐metal‐free Photo‐induced Cascade Sulfonylation/Addition/Cyclization of 3‐Arylethynyl‐[1,1′‐biphenyl]‐2‐carbonitriles with Aryldiazonium Tetrafluoroborates via the Insertion of Sulfur Dioxide. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000999] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Nengneng Zhou
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science Anhui Normal University, Wuhu Anhui 241000 People's Republic of China
| | - Meixia Wu
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science Anhui Normal University, Wuhu Anhui 241000 People's Republic of China
| | - Kaimo Kuang
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science Anhui Normal University, Wuhu Anhui 241000 People's Republic of China
| | - Sixin Wu
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science Anhui Normal University, Wuhu Anhui 241000 People's Republic of China
| | - Man Zhang
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Key Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science Anhui Normal University, Wuhu Anhui 241000 People's Republic of China
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23
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Zheng X, Zhong T, Zhang L, Chen J, Chen Z, Jiang X, Yu C. Radical-Triggered Cyclization of Methylthio-Substituted Alkynones: Synthesis of Diverse 3-Alkylthiochromones. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000663] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | | | - Lei Zhang
- University of Technology; Hangzhou P.R.China
| | - Junyu Chen
- University of Technology; Hangzhou P.R.China
| | - Zhiwei Chen
- University of Technology; Hangzhou P.R.China
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24
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Zou L, Wang L, Sun L, Xie X, Li P. Photo-driven haloazidation cyclization of 1,5-enynes having cyano groups with TMSN3 and NIS/NCS/NBS under metal-free conditions. Chem Commun (Camb) 2020; 56:7933-7936. [DOI: 10.1039/d0cc02471f] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A visible-light-driven three-component haloazidation cyclization of 1,5-enynes having cyano groups with TMSN3 and N-iodo(bromo/chloro)succinimide (NIS/NCS/NBS) under metal-free conditions was developed.
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Affiliation(s)
- Long Zou
- Advanced Research Institute and Department of Chemistry
- Taizhou University
- Taizhou
- Zhejiang
- P. R. China
| | - Lei Wang
- Advanced Research Institute and Department of Chemistry
- Taizhou University
- Taizhou
- Zhejiang
- P. R. China
| | - Li Sun
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P. R. China
| | - Xiaofei Xie
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P. R. China
| | - Pinhua Li
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P. R. China
- State Key Laboratory of Organometallic Chemistry
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25
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Li Y, Pan GA, Luo MJ, Li JH. Radical-mediated oxidative annulations of 1,n-enynes involving C–H functionalization. Chem Commun (Camb) 2020; 56:6907-6924. [DOI: 10.1039/d0cc02335c] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Recent progress in oxidative annulations of 1,n-enynes involving C–H functionalization is summarized.
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Affiliation(s)
- Yang Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Gao-Ang Pan
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Mu-Jia Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
- State Key Laboratory of Chemo/Biosensing and Chemometrics
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
- State Key Laboratory of Chemo/Biosensing and Chemometrics
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26
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Xia WJ, Xin Y, Zhao ZW, Chen X, Wang XX, Li Y, Wang G, Li YM. Oxidative cascade cyclization of 2-cyano-3-arylaniline derived acrylamides with toluenes, ethers, aliphatic alcohols or simple alkanes. Org Chem Front 2020. [DOI: 10.1039/d0qo00535e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Oxidative radical cascade cyclization of 2-cyano-3-arylaniline derived acrylamides with a variety of hydrocarbons including toluenes, ethers, aliphatic alcohols and alkanes has been developed to construct alkyl substituted pyridophenanthridines.
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Affiliation(s)
- Wen-Jin Xia
- Faculty of Life Science and Technology
- Kunming University of Science and Technology
- Kunming 650500
- P. R. China
| | - Yangchun Xin
- Katzin Diagnostic & Research PET/MR Center
- Nemours/Alfred I. DuPont Hospital for Children
- Wilmington
- USA
| | - Zhi-Wei Zhao
- Faculty of Life Science and Technology
- Kunming University of Science and Technology
- Kunming 650500
- P. R. China
| | - Xin Chen
- Faculty of Life Science and Technology
- Kunming University of Science and Technology
- Kunming 650500
- P. R. China
| | - Xiang-Xiang Wang
- Faculty of Life Science and Technology
- Kunming University of Science and Technology
- Kunming 650500
- P. R. China
| | - Yi Li
- Faculty of Life Science and Technology
- Kunming University of Science and Technology
- Kunming 650500
- P. R. China
| | - Guanlin Wang
- Faculty of Life Science and Technology
- Kunming University of Science and Technology
- Kunming 650500
- P. R. China
| | - Ya-Min Li
- Faculty of Life Science and Technology
- Kunming University of Science and Technology
- Kunming 650500
- P. R. China
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27
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Kang QQ, Liu Y, Huang XJ, Li Q, Wei WT. Selective Cyanoalkylation and [2+2+2] Annulation of 1,6-Enynes with Azobis(alkylcarbonitriles) under Mild Conditions. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901483] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Qing-Qing Kang
- State Key Laboratory Base of Novel Functional Materials and Preparation Science; State Key Laboratory for Quality and Safety of Agro-products; School of Materials Science and Chemical Engineering; Ningbo University; 315211 Ningbo P. R. China
| | - Yi Liu
- State Key Laboratory Base of Novel Functional Materials and Preparation Science; State Key Laboratory for Quality and Safety of Agro-products; School of Materials Science and Chemical Engineering; Ningbo University; 315211 Ningbo P. R. China
| | - Xun-Jie Huang
- State Key Laboratory Base of Novel Functional Materials and Preparation Science; State Key Laboratory for Quality and Safety of Agro-products; School of Materials Science and Chemical Engineering; Ningbo University; 315211 Ningbo P. R. China
| | - Qiang Li
- Institution of Functional Organic Molecules and Materials; School of Chemistry and Chemical Engineering; Liaocheng University; 252059 Liaocheng P. R. China
| | - Wen-Ting Wei
- State Key Laboratory Base of Novel Functional Materials and Preparation Science; State Key Laboratory for Quality and Safety of Agro-products; School of Materials Science and Chemical Engineering; Ningbo University; 315211 Ningbo P. R. China
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28
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Cascade arylalkylation of unactivated alkenes for the construction of cyanomethyl-substituted dihydroisoquinolinones and indolines. CATAL COMMUN 2019. [DOI: 10.1016/j.catcom.2019.105802] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
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29
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Synthesis of cyanoalkyl indolines through cyanoalkylarylation of N-allyl anilines with alkyl nitriles under metal-free and neutral conditions. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.05.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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30
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Sun H, Jiang Y, Yang YS, Li YY, Li L, Wang WX, Feng T, Li ZH, Liu JK. Synthesis of difluoromethylated 2-oxindoles and quinoline-2,4-diones via visible light-induced tandem radical cyclization of N-arylacrylamides. Org Biomol Chem 2019; 17:6629-6638. [DOI: 10.1039/c9ob01213c] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Visible light-induced difluoromethylation of N-arylacrylamides to afford difluoromethylated 2-oxindoles and quinoline-2,4-diones with difluoromethyl 2-pyridyl sulfones as radical precursors has been disclosed.
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Affiliation(s)
- Huan Sun
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan
- P. R. China
- National Demonstration Center for Experimental Ethnopharmacology Education
| | - Yue Jiang
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan
- P. R. China
| | - Ying-Sha Yang
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan
- P. R. China
| | - Yun-Yun Li
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan
- P. R. China
| | - Lin Li
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi
- P. R. China
| | - Wen-Xuan Wang
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan
- P. R. China
| | - Tao Feng
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan
- P. R. China
| | - Zheng-Hui Li
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan
- P. R. China
| | - Ji-Kai Liu
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan
- P. R. China
- National Demonstration Center for Experimental Ethnopharmacology Education
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31
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Shang JQ, Wang XX, Xin Y, Li Y, Zhou B, Li YM. Decarboxylative cascade cyclization of α-keto acids with 2-cyano-3-arylaniline-derived acrylamides. Org Biomol Chem 2019; 17:9447-9455. [DOI: 10.1039/c9ob02023c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An oxidative decarboxylative cascade cyclization of α-keto acids with 2-cyano-3-arylaniline-derived acrylamides delivering carbonyl-containing pyrido[4,3,2-gh]phenanthridines is presented.
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Affiliation(s)
- Jia-Qi Shang
- Faculty of Life Science and Technology
- Kunming University of Science and Technology
- Kunming 650500
- P. R. China
| | - Xiang-Xiang Wang
- Faculty of Life Science and Technology
- Kunming University of Science and Technology
- Kunming 650500
- P. R. China
| | - Yangchun Xin
- Katzin Diagnostic & Research PET/MR Center
- Nemours/Alfred I. DuPont Hospital for Children
- Wilmington
- USA
| | - Yi Li
- Faculty of Life Science and Technology
- Kunming University of Science and Technology
- Kunming 650500
- P. R. China
| | - Bin Zhou
- Faculty of Life Science and Technology
- Kunming University of Science and Technology
- Kunming 650500
- P. R. China
| | - Ya-Min Li
- Faculty of Life Science and Technology
- Kunming University of Science and Technology
- Kunming 650500
- P. R. China
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