1
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Liu H, Liu H, Wang E, Li L, Luo Z, Cao J, Chen J, Yang L, Yang X. Hydrogen Bond Assisted Three-Component Tandem Reactions to Access N-Alkyl-4-Quinolones. Molecules 2023; 28:molecules28052304. [PMID: 36903552 PMCID: PMC10005641 DOI: 10.3390/molecules28052304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 02/15/2023] [Accepted: 02/21/2023] [Indexed: 03/06/2023] Open
Abstract
Hydrogen-bonding catalytic reactions have gained great interest. Herein, a hydrogen-bond-assisted three-component tandem reaction for the efficient synthesis of N-alkyl-4-quinolones is described. This novel strategy features the first proof of polyphosphate ester (PPE) as a dual hydrogen-bonding catalyst and the use of readily available starting materials for the preparation of N-alkyl-4-quinolones. The method provides a diversity of N-alkyl-4-quinolones in moderate to good yields. The compound 4h demonstrated good neuroprotective activity against N-methyl-ᴅ-aspartate (NMDA)-induced excitotoxicity in PC12 cells.
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Affiliation(s)
- Huanhuan Liu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550014, China
| | - Huadan Liu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550014, China
| | - Enhua Wang
- Department of Food and Medicine, Guizhou Vocational College of Agriculture, Qingzhen 551400, China
| | - Liangqun Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550014, China
| | - Zhongsheng Luo
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550014, China
| | - Jiafu Cao
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550014, China
| | - Jialin Chen
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550014, China
| | - Lishou Yang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550014, China
- Correspondence: (L.Y.); (X.Y.)
| | - Xiaosheng Yang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550014, China
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550014, China
- Correspondence: (L.Y.); (X.Y.)
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2
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Zhang W, Niu F, Yue R, Zhang Y, Ma C, Sun J, Rong L. A convenient and efficient process for the synthesis of 9‐aryl‐6,
9‐dihydro‐1
H
‐pyrazolo[3,4‐
f
] quinoline‐8‐carbonitrile and 1‐aryl‐1,4‐ dihydrobenzo[
f
]quinoline‐2‐carbonitrile derivatives. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Wen‐Ting Zhang
- Xuzhou Institute of Agricultural Sciences in Xuhuai Region of Jiangsu/Sweet Potato Research Institute Chinese Academy of Agricultural Sciences Xuzhou People's Republic of China
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials; School of Chemistry and Materials Science Jiangsu Normal University Xuzhou People's Republic of China
| | - Fu‐Xiang Niu
- Xuzhou Institute of Agricultural Sciences in Xuhuai Region of Jiangsu/Sweet Potato Research Institute Chinese Academy of Agricultural Sciences Xuzhou People's Republic of China
| | - Rui‐Xue Yue
- Xuzhou Institute of Agricultural Sciences in Xuhuai Region of Jiangsu/Sweet Potato Research Institute Chinese Academy of Agricultural Sciences Xuzhou People's Republic of China
| | - Yi Zhang
- Xuzhou Institute of Agricultural Sciences in Xuhuai Region of Jiangsu/Sweet Potato Research Institute Chinese Academy of Agricultural Sciences Xuzhou People's Republic of China
| | - Chen Ma
- Xuzhou Institute of Agricultural Sciences in Xuhuai Region of Jiangsu/Sweet Potato Research Institute Chinese Academy of Agricultural Sciences Xuzhou People's Republic of China
| | - Jian Sun
- Xuzhou Institute of Agricultural Sciences in Xuhuai Region of Jiangsu/Sweet Potato Research Institute Chinese Academy of Agricultural Sciences Xuzhou 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 People's Republic of China
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3
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Kavale AC, Kalbandhe AH, Opai IA, Jichkar AA, Karade NN. Oxidative ring expansion of 3-hydroxy-3-phenacyloxindoles using phenyliodine diacetate and molecular iodine: Synthesis of 2-hydroxy-2-aryl/alkyl-2,3-dihydroquinolin-4(1H)-ones. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2020.152631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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4
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Okamoto N, Sueda T, Minami H, Yanada R. Inter- and Intramolecular Alkyne-Carbonyl Metathesis/1,6-Addition/Oxidative Aromatization Tandem Reactions between 1,6-Diynes and Aldehydes. Org Lett 2019; 21:8847-8851. [PMID: 31633934 DOI: 10.1021/acs.orglett.9b03494] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report an efficient synthetic route to 9-arylfluorenes and biaryl compounds from 1,6-diynes and aldehydes via inter- and intramolecular alkyne-carbonyl metathesis/1,6-addition/oxidative aromatization reactions. These tandem reactions are initiated by a BF3·Et2O-promoted tandem inter- and intramolecular alkyne-carbonyl metathesis of 1,6-diynes with carbonyl compounds followed by an In(OTf)3-catalyzed 1,6-addition/oxidative aromatization with iodobenzene diacetate.
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Affiliation(s)
- Noriko Okamoto
- Faculty of Pharmaceutical Sciences , Hiroshima International University , 5-1-1 Hirokoshingai , Kure , Hiroshima 737-0112 , Japan
| | - Takuya Sueda
- Faculty of Pharmaceutical Sciences , Hiroshima International University , 5-1-1 Hirokoshingai , Kure , Hiroshima 737-0112 , Japan
| | - Hideki Minami
- Faculty of Pharmaceutical Sciences , Hiroshima International University , 5-1-1 Hirokoshingai , Kure , Hiroshima 737-0112 , Japan
| | - Reiko Yanada
- Faculty of Pharmaceutical Sciences , Hiroshima International University , 5-1-1 Hirokoshingai , Kure , Hiroshima 737-0112 , Japan
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5
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Ghosh P, Das S. Synthesis and Functionalization of 4-Quinolones - A Progressing Story. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900452] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Prasanjit Ghosh
- Department of Chemistry; University of North Bengal; 734013 Darjeeling West Bengal India
| | - Sajal Das
- Department of Chemistry; University of North Bengal; 734013 Darjeeling West Bengal India
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6
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Yuan B, Guo X, Wang G, Huang H, Zhang F, Xu J, He R. Theoretical investigation on the mechanism of Cu(ii)-catalyzed synthesis of 4-quinolones: effects of additives HOTf vs. HOTs. NEW J CHEM 2019. [DOI: 10.1039/c9nj00082h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Hydrogen-bond donor/proton-donor ability is revealed to be the primary factor that controls the catalytic capability of additives (HOTf vs. HOTs).
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Affiliation(s)
- Binfang Yuan
- Chongqing Key Laboratory of Inorganic Special Functional Materials
- College of Chemistry and Chemical Engineering
- Yangtze Normal University
- Chongqing 408100
- China
| | - Xiaogang Guo
- Chongqing Key Laboratory of Inorganic Special Functional Materials
- College of Chemistry and Chemical Engineering
- Yangtze Normal University
- Chongqing 408100
- China
| | - Guangzhao Wang
- College of Electronic Information Engineering
- Key Laboratory of Extraordinary Bond Engineering and Advanced Materials, Technology
- Yangtze Normal University
- Chongqing 408100
- China
| | - Huisheng Huang
- Chongqing Key Laboratory of Inorganic Special Functional Materials
- College of Chemistry and Chemical Engineering
- Yangtze Normal University
- Chongqing 408100
- China
| | - Fulan Zhang
- Chongqing Key Laboratory of Inorganic Special Functional Materials
- College of Chemistry and Chemical Engineering
- Yangtze Normal University
- Chongqing 408100
- China
| | - Jianhua Xu
- Chongqing Key Laboratory of Inorganic Special Functional Materials
- College of Chemistry and Chemical Engineering
- Yangtze Normal University
- Chongqing 408100
- China
| | - Rongxing He
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
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7
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Xu X, Sun R, Zhang S, Zhang X, Yi W. Divergent Synthesis of Quinolones and Dihydroepindolidiones via Cu(I)-Catalyzed Cyclization of Anilines with Alkynes. Org Lett 2018; 20:1893-1897. [DOI: 10.1021/acs.orglett.8b00436] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xuefeng Xu
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Ruzhong Sun
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Sheng Zhang
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Xu Zhang
- Engineering Technology Research Center of Henan Province for Solar Catalysis, College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Wei Yi
- Key Laboratory of Molecular Clinical Pharmacology & Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 511436, China
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8
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Wu J, Zhou Y, Wu T, Zhou Y, Chiang CW, Lei A. From Ketones, Amines, and Carbon Monoxide to 4-Quinolones: Palladium-Catalyzed Oxidative Carbonylation. Org Lett 2017; 19:6432-6435. [DOI: 10.1021/acs.orglett.7b03337] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Jiwei Wu
- The Institute for
Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Yuchen Zhou
- The Institute for
Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Ting Wu
- The Institute for
Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Yi Zhou
- The Institute for
Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Chien-Wei Chiang
- The Institute for
Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Aiwen Lei
- The Institute for
Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou
Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
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9
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Minami H, Okamoto N, Sueda T, Sakaguchi T, Ishikura M, Yanada R. Reaction of 2-propargylphenylcarbamates with diphenyliodonium salts via Meyer-Schuster rearrangement. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.09.079] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Xu X, Zhang X. Direct Synthesis of 4-Quinolones via Copper-Catalyzed Anilines and Alkynes. Org Lett 2017; 19:4984-4987. [DOI: 10.1021/acs.orglett.7b02495] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Xuefeng Xu
- College of Chemistry and
Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Xu Zhang
- College of Chemistry and
Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China
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11
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Minami H, Kanayama T, Tanaka R, Okamoto N, Sueda T, Yanada R. Regioselective Arylative Ring-Closing Reaction of 2-Alkynylphenyl Derivatives: Formation of Arylated Benzoxazin-2-ones, Benzoxazin-2-amines and 2,3-Disubstituted Indoles. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601162] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Hideki Minami
- Faculty of Pharmaceutical Sciences; Hiroshima International University; 5-1-1 Hirokoshingai 737-0112 Kure, Hiroshima Japan
| | - Takuya Kanayama
- Faculty of Pharmaceutical Sciences; Hiroshima International University; 5-1-1 Hirokoshingai 737-0112 Kure, Hiroshima Japan
| | - Reishi Tanaka
- Faculty of Pharmaceutical Sciences; Hiroshima International University; 5-1-1 Hirokoshingai 737-0112 Kure, Hiroshima Japan
| | - Noriko Okamoto
- Faculty of Pharmaceutical Sciences; Hiroshima International University; 5-1-1 Hirokoshingai 737-0112 Kure, Hiroshima Japan
| | - Takuya Sueda
- Faculty of Pharmaceutical Sciences; Hiroshima International University; 5-1-1 Hirokoshingai 737-0112 Kure, Hiroshima Japan
| | - Reiko Yanada
- Faculty of Pharmaceutical Sciences; Hiroshima International University; 5-1-1 Hirokoshingai 737-0112 Kure, Hiroshima Japan
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12
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Santhosh Reddy R, Lagishetti C, Kiran INC, You H, He Y. Transition-Metal-Free Cascade Synthesis of 4-Quinolones: Umpolung of Michael Acceptors via Ene Reaction with Arynes. Org Lett 2016; 18:3818-21. [DOI: 10.1021/acs.orglett.6b01830] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- R. Santhosh Reddy
- School of Pharmaceutical
Sciences and Innovative Drug Research Centre, Chongqing University, 55 Daxuecheng South Road, Shapingba, Chongqing 401331, P. R. China
| | - Chandraiah Lagishetti
- School of Pharmaceutical
Sciences and Innovative Drug Research Centre, Chongqing University, 55 Daxuecheng South Road, Shapingba, Chongqing 401331, P. R. China
| | - I. N. Chaithanya Kiran
- School of Pharmaceutical
Sciences and Innovative Drug Research Centre, Chongqing University, 55 Daxuecheng South Road, Shapingba, Chongqing 401331, P. R. China
| | - Hengyao You
- School of Pharmaceutical
Sciences and Innovative Drug Research Centre, Chongqing University, 55 Daxuecheng South Road, Shapingba, Chongqing 401331, P. R. China
| | - Yun He
- School of Pharmaceutical
Sciences and Innovative Drug Research Centre, Chongqing University, 55 Daxuecheng South Road, Shapingba, Chongqing 401331, P. R. China
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13
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Minami H, Sueda T, Okamoto N, Miwa Y, Ishikura M, Yanada R. Copper-Catalyzed Tandem AmideN-Arylation and Regioselective Cyclization of 2-Alkynylbenzamides. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501330] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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14
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Okamoto N, Sueda T, Minami H, Miwa Y, Yanada R. Regioselective Iodoazidation of Alkynes: Synthesis of α,α-Diazidoketones. Org Lett 2015; 17:1336-9. [DOI: 10.1021/acs.orglett.5b00395] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Noriko Okamoto
- Faculty of Pharmaceutical
Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan
| | - Takuya Sueda
- Faculty of Pharmaceutical
Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan
| | - Hideki Minami
- Faculty of Pharmaceutical
Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan
| | - Yoshihisa Miwa
- Faculty of Pharmaceutical
Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan
| | - Reiko Yanada
- Faculty of Pharmaceutical
Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan
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15
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Hu W, Lin JP, Song LR, Long YQ. Direct synthesis of 2-aryl-4-quinolones via transition-metal-free intramolecular oxidative C(sp(3))-H/C(sp(3))-H coupling. Org Lett 2015; 17:1268-71. [PMID: 25700137 DOI: 10.1021/acs.orglett.5b00248] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel, metal-free oxidative intramolecular Mannich reaction was developed between secondary amines and unmodified ketones, affording a simple and direct access to a broad range of 2-arylquinolin-4(1H)-ones through C(sp(3))-H activation/C(sp(3))-C(sp(3)) bond formation from readily available N-arylmethyl-2-aminophenylketones, using TEMPO as the oxidant and KO(t)Bu as the base.
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Affiliation(s)
- Wei Hu
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Shanghai 201203, China
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16
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Okamoto N, Sueda T, Yanada R. Bi(OTf)3-Catalyzed Tandem Meyer–Schuster Rearrangement and 1,4-Addition to the Resulting Vinyl Ketone. J Org Chem 2014; 79:9854-9. [DOI: 10.1021/jo5017663] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Noriko Okamoto
- Faculty of Pharmaceutical
Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan
| | - Takuya Sueda
- Faculty of Pharmaceutical
Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan
| | - Reiko Yanada
- Faculty of Pharmaceutical
Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan
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17
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Mehra V, Singh P, Bisetty K, Kumar V. Triflic acid promoted fries rearrangement of C-3 vinyl/isopropenyl-azetidin-2-ones: single-pot synthesis of C-3 functionalized-2-aryl-2,3-dihydro-quinoline-4(1H)-ones. RSC Adv 2014. [DOI: 10.1039/c4ra07452a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Single-pot synthesis of C-3 functionalized-2-aryl-2,3-dihydro-quinoline-4(1H)-ones with stability profile validation using density functional theory (DFT) calculations.
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Affiliation(s)
- Vishu Mehra
- Department of Chemistry
- Guru Nanak Dev University
- Amritsar-143005, India
| | - Parvesh Singh
- School of Chemistry and Physics
- University of Kwa-Zulu Natal
- Durban 4000, South Africa
| | - Krishna Bisetty
- Department of Chemistry
- Durban University of Technology
- Durban 4000, South Africa
| | - Vipan Kumar
- Department of Chemistry
- Guru Nanak Dev University
- Amritsar-143005, India
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18
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Gupta S, Ghosh P, Dwivedi S, Das S. Synthesis of 6-aryl substituted 4-quinolones via Suzuki cross coupling. RSC Adv 2014. [DOI: 10.1039/c3ra45056b] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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19
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Abstract
Tandem reactions for efficient construction of nitrogen-containing heterocycles were developed. One-pot platinum(II)-catalyzed synthesis of indoles and isoquinolines has been achieved via isocyanates, which were derived from a Hofmann-type rearrangement of 2-alkynylbenzamides and 2-alkynylbenzylamides using a hypervalent iodine reagent. As an extension of this approach, trans-2,3-dihydro-4-quinolones were synthesized via acid-catalyzed intermolecular [2+2]-cycloaddition of aldehydes and carbamates, which were formed from nucleophilic addition of alcohols to isocyanate intermediates. Direct, efficient syntheses of the benzimidazo[2,1-a]isoquinoline ring system have been achieved with 2-bromoarylaldehydes, terminal alkynes, and 1,2-phenylenediamines by a microwave-accelerated tandem process in which a Sonogashira coupling, 5-endo cyclization, oxidative aromatization, and 6-endo cyclization can be performed in a single synthetic operation.
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Affiliation(s)
- Noriko Okamoto
- Faculty of Pharmaceutical Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan.
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20
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Li F, Nie J, Wu JW, Zheng Y, Ma JA. Stereoselective Synthesis of Fluorinated 2,3-Dihydroquinolin-4(1H)-ones via a One-Pot Multistep Transformation. J Org Chem 2012; 77:2398-406. [DOI: 10.1021/jo202693x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Feng Li
- Department of Chemistry, Tianjin University, Tianjin, 300072, P. R. of China
| | - Jing Nie
- Department of Chemistry, Tianjin University, Tianjin, 300072, P. R. of China
| | - Jun-Wei Wu
- Department of Chemistry, Tianjin University, Tianjin, 300072, P. R. of China
| | - Yan Zheng
- Department of Chemistry, Tianjin University, Tianjin, 300072, P. R. of China
| | - Jun-An Ma
- Department of Chemistry, Tianjin University, Tianjin, 300072, P. R. of China
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21
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Sakai N, Tamura K, Shimamura K, Ikeda R, Konakahara T. Copper-Catalyzed [5 + 1] Annulation of 2-Ethynylanilines with an N,O-Acetal Leading to Construction of Quinoline Derivatives. Org Lett 2012; 14:836-9. [DOI: 10.1021/ol203360g] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Norio Sakai
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science (RIKADAI), Noda, Chiba 278-8510, Japan
| | - Kosuke Tamura
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science (RIKADAI), Noda, Chiba 278-8510, Japan
| | - Kazuyori Shimamura
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science (RIKADAI), Noda, Chiba 278-8510, Japan
| | - Reiko Ikeda
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science (RIKADAI), Noda, Chiba 278-8510, Japan
| | - Takeo Konakahara
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science (RIKADAI), Noda, Chiba 278-8510, Japan
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