1
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Yang Q, Huang S, Yin L, Wang Z, Chen X, Huang C. NBS-Promoted Synthesis of Thiocyanated Aminomaleimides and Site-Selective Intramolecular Cyclization Access to 1,4-Benzothiazepines via S-CN Bond Cleavage. J Org Chem 2024; 89:5266-5276. [PMID: 38592168 DOI: 10.1021/acs.joc.3c02607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
A transition metal-free concise and efficient protocol for the synthesis of thiocyanated aminomaleimides and benzo[e][1,4]thiazepine derivatives has been developed. The method involves an initial α-C-H thiocyanation of aminomaleimides with KSCN and TEMPO-mediated tandem S-CN bond cleavage/intramolecular cyclization substitution processes, which enables the formation of seven-membered S/N-heterocycles. This synthetic strategy provides a reliable method for the synthesis of biologically interesting benzo[e][1,4]thiazepine derivatives by using KSCN as sulfur sources as well as expands the application of enaminones thiocyanation reactions in heterocycles synthesis.
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Affiliation(s)
- Qi Yang
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, School of Chemistry and Environment, Yunnan Minzu University, Kunming 650500, P.R. China
- School of Chemistry and Resource Engineering, Honghe University, Mengzi 661199, P.R. China
| | - Shuntao Huang
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, School of Chemistry and Environment, Yunnan Minzu University, Kunming 650500, P.R. China
| | - Lu Yin
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, School of Chemistry and Environment, Yunnan Minzu University, Kunming 650500, P.R. China
| | - Zhuoyu Wang
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, School of Chemistry and Environment, Yunnan Minzu University, Kunming 650500, P.R. China
| | - Xuebing Chen
- School of Chemistry and Resource Engineering, Honghe University, Mengzi 661199, P.R. China
| | - Chao Huang
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, School of Chemistry and Environment, Yunnan Minzu University, Kunming 650500, P.R. China
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2
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Zhu C, Zhou J, Li T, Yang J, Jin H, Zhang L. Access to 2-pyridinones comprising enaminonitriles via AgOAc promoted cascade reactions of thioesters with aminomethylene malononitriles. Org Biomol Chem 2023; 21:6881-6885. [PMID: 37486037 DOI: 10.1039/d3ob00915g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
The facile synthesis of 2-pyridinones containing enaminonitriles from thioesters with aminomethylene malononitriles is achieved through an AgOAc-promoted acylation/cyclization/tautomerization cascade reaction. Control experiments reveal that AgOAc acts as a versatile promoter, activating both thioester and cyano groups while also serving as a Brønsted base in the cascade sequence. Moreover, 2-pyridinones were transformed into biologically significant 2-pyridinone-fused 2-pyrimidones with intriguing fluorescence emission properties.
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Affiliation(s)
- Chen Zhu
- School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, People's Republic of China
- National-Local Joint Engineering Laboratory for Development of Boron and Magnesium Resources and Fine Chemical Technology, Liaoning Province Key Laboratory of Green Functional Molecular Design and Development, Institute of Functional Molecules, Shenyang University of Chemical Technology, Shenyang 110142, People's Republic of China.
| | - Jubao Zhou
- National-Local Joint Engineering Laboratory for Development of Boron and Magnesium Resources and Fine Chemical Technology, Liaoning Province Key Laboratory of Green Functional Molecular Design and Development, Institute of Functional Molecules, Shenyang University of Chemical Technology, Shenyang 110142, People's Republic of China.
| | - Tianxing Li
- National-Local Joint Engineering Laboratory for Development of Boron and Magnesium Resources and Fine Chemical Technology, Liaoning Province Key Laboratory of Green Functional Molecular Design and Development, Institute of Functional Molecules, Shenyang University of Chemical Technology, Shenyang 110142, People's Republic of China.
| | - Jiaxin Yang
- National-Local Joint Engineering Laboratory for Development of Boron and Magnesium Resources and Fine Chemical Technology, Liaoning Province Key Laboratory of Green Functional Molecular Design and Development, Institute of Functional Molecules, Shenyang University of Chemical Technology, Shenyang 110142, People's Republic of China.
| | - Hui Jin
- National-Local Joint Engineering Laboratory for Development of Boron and Magnesium Resources and Fine Chemical Technology, Liaoning Province Key Laboratory of Green Functional Molecular Design and Development, Institute of Functional Molecules, Shenyang University of Chemical Technology, Shenyang 110142, People's Republic of China.
| | - Lixin Zhang
- School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, People's Republic of China
- National-Local Joint Engineering Laboratory for Development of Boron and Magnesium Resources and Fine Chemical Technology, Liaoning Province Key Laboratory of Green Functional Molecular Design and Development, Institute of Functional Molecules, Shenyang University of Chemical Technology, Shenyang 110142, People's Republic of China.
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3
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Chen YH, Yang J, Lu ZH, Zhao KH, Xie QY, Yan SJ. Synthesis of benzo[ b][1,5]diazocin-6(5 H)-one derivatives via the Cu-catalysed oxidative cyclization of 2-aryl-1 H-indoles with 1,1-enediamines. Chem Commun (Camb) 2023; 59:1217-1220. [PMID: 36629537 DOI: 10.1039/d2cc06388c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A novel protocol for the synthesis of highly functionalized benzo[b][1,5]diazocin-6(5H)-one derivatives (BDCOs, 4 and 5) from 2-aryl-1H-indoles and 1,1-enediamines was developed via a complex cascade of reactions including regioselective free radical oxidation, the 1,2-addition of imine, imine-enamine tautomerization, intramolecular cyclization, and ring expansion. The cascade reaction was enabled by refluxing a mixture of two substrates in the presence of di-tert-butyl peroxide (DTBP) as an oxidant and anhydrous CuI as a catalyst in toluene under argon protection. Consequently, a series of BDCOs (4 and 5) were synthesized with high regioselectivity in good yield. This protocol can be used for the synthesis of functionalized BDCOs via a one-pot oxidative annulation reaction rather than a multi-step reaction, which is suitable for both combinatorial and parallel syntheses of BDCOs.
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Affiliation(s)
- Yi-Hua Chen
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China.
| | - Jing Yang
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China.
| | - Zi-Han Lu
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China.
| | - Ke-Hua Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China.
| | - Qi-Ying Xie
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China.
| | - Sheng-Jiao Yan
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, P. R. China.
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4
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Li J, Wang S, Xu G, Cui X, Zi B, Liu T, Huang C. Switchable Synthesis of Cyclohexanedione‐Fused 2,8‐Oxaza/2,8‐Dioxa Bicyclo[3.3.1]nonanes and 4‐Substituted 4H‐Chromenes Via Tunability of the Deamination/Dehydration Process. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202100797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jingpeng Li
- Yunnan Minzu University School of Chemistry and Environment CHINA
| | - Shuang Wang
- Yunnan Minzu University School of Chenistry and Environment CHINA
| | - Genrui Xu
- Dalian Minzu University School of Chemistry and Environment CHINA
| | - Xin Cui
- Yunnan Minzu University School of Chemistry and Environment CHINA
| | - Boqin Zi
- Qujing Normal University College of Chemistry and Environmental Science CHINA
| | - Teng Liu
- Qujing Normal University College of Chemistry and Environmental Science CHINA
| | - Chao Huang
- Yunnan Minzu University School of Chemistry and Environment Yuehua Street No.2929, Chenggong District 650500 Kunming CHINA
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5
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Wu Q, Wang S, Li J, Li W, Chen M, Huang C. Cascade Reaction by I
2
/Base‐Promoted Synthesis of Chromeno‐[3,4‐
c
]pyrrol‐4(2
H
)‐ones from 2‐Hydroxychalcones and
β‐
Enamine Esters. ChemistrySelect 2022. [DOI: 10.1002/slct.202104106] [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)
- Qin Wu
- Biobased Materials School of Chemistry and Environment Yunnan Minzu University Kunming 650500 P. R. China
| | - Shuang Wang
- Biobased Materials School of Chemistry and Environment Yunnan Minzu University Kunming 650500 P. R. China
| | - Jingpeng Li
- Biobased Materials School of Chemistry and Environment Yunnan Minzu University Kunming 650500 P. R. China
| | - Weiqiang Li
- Biobased Materials School of Chemistry and Environment Yunnan Minzu University Kunming 650500 P. R. China
| | - Minghong Chen
- Biobased Materials School of Chemistry and Environment Yunnan Minzu University Kunming 650500 P. R. China
| | - Chao Huang
- Biobased Materials School of Chemistry and Environment Yunnan Minzu University Kunming 650500 P. R. China
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6
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Wen S, Chen Y, Tian Q, Zhang Y, Cheng G. Transition-Metal-, Additive-, and Solvent-Free [3 + 3] Annulation of RCF 2-Imidoyl Sulfoxonium Ylides with Cyclopropenones to Give Multifunctionalized CF 3-Pyridones. J Org Chem 2021; 87:1124-1132. [PMID: 34965129 DOI: 10.1021/acs.joc.1c02464] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
An efficient and practical strategy was developed to synthesize 1,3,4-triaryl-6-trifluoromethylpyridones from CF3-imidoyl sulfoxonium ylides and cyclopropenones in good to excellent yields. This stepwise [3 + 3] annulation reaction was carried out under transition-metal-, additive-, and solvent-free conditions, generating 1 equiv of dimethyl sulfoxide as byproduct and tolerating a series of functional groups.
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Affiliation(s)
- Si Wen
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, the Instrumental Analysis Center, Huaqiao University, Xiamen 361021, China
| | - Yanhui Chen
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, the Instrumental Analysis Center, Huaqiao University, Xiamen 361021, China
| | - Qingyu Tian
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, the Instrumental Analysis Center, Huaqiao University, Xiamen 361021, China
| | - Yuqing Zhang
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, the Instrumental Analysis Center, Huaqiao University, Xiamen 361021, China
| | - Guolin Cheng
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, the Instrumental Analysis Center, Huaqiao University, Xiamen 361021, China
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7
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Wang S, Lin JJ, Cui X, Li JP, Huang C. Controllable Synthesis of Two Isomers 4 H-Chromene and 2,8-Dioxabicyclo[3.3.1]nonane Derivatives under Catalyst-Free Conditions. J Org Chem 2021; 86:16396-16408. [PMID: 34781678 DOI: 10.1021/acs.joc.1c01762] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A one-pot method for the selective synthesis of two isomers 4H-chromene and 2,8-dioxabicyclo[3.3.1]nonane derivatives was developed without a catalyst and using EtOH/H2O (4:1, v/v) as the solvent. The reaction was conducted under mild conditions, with forming multiple chemical bonds in one pot and high atom economy, and only a stoichiometric amount of H2O is produced as the byproduct. Its selectivity was controlled by thermodynamics and kinetics, and the reasons for the transformation of the two structures are also discussed.
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Affiliation(s)
- Shuang Wang
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, School of Chemistry and Environment, Yunnan Minzu University, Kunming 650500, People's Republic of China
| | - Jun-Jie Lin
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, School of Chemistry and Environment, Yunnan Minzu University, Kunming 650500, People's Republic of China
| | - Xin Cui
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, School of Chemistry and Environment, Yunnan Minzu University, Kunming 650500, People's Republic of China
| | - Jing-Peng Li
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, School of Chemistry and Environment, Yunnan Minzu University, Kunming 650500, People's Republic of China
| | - Chao Huang
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, School of Chemistry and Environment, Yunnan Minzu University, Kunming 650500, People's Republic of China
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8
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Li W, Wu Q, Xu G, Sun Y, Huang C, Liu T. A Practical Synthesis of
N
‐aryl/
N
‐alkyl 4‐Pyridones under Continuous Flow Technology. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100584] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Weiqiang Li
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials School of Chemistry and Environment Yunnan Minzu University Kunming 650500 P. R. China
| | - Qin Wu
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials School of Chemistry and Environment Yunnan Minzu University Kunming 650500 P. R. China
| | - Genrui Xu
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials School of Chemistry and Environment Yunnan Minzu University Kunming 650500 P. R. China
| | - Yinjing Sun
- College of Chemistry and Environmental Science Qujing Normal University Qujing 655011 P. R. China
| | - Chao Huang
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials School of Chemistry and Environment Yunnan Minzu University Kunming 650500 P. R. China
| | - Teng Liu
- College of Chemistry and Environmental Science Qujing Normal University Qujing 655011 P. R. China
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9
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Tian Q, Xiao S, Cheng G. Base‐Promoted
Synthesis of
3‐Alkenyl
‐2‐pyridones from
N
‐Propargyl
‐β‐enaminones and Aryl Aldehydes. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100331] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Qingyu Tian
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, Instrumental Analysis Center, Huaqiao University Xiamen Fujian 361021 China
| | - Shangyun Xiao
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, Instrumental Analysis Center, Huaqiao University Xiamen Fujian 361021 China
| | - Guolin Cheng
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, Instrumental Analysis Center, Huaqiao University Xiamen Fujian 361021 China
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10
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Amer MM, Aziz MA, Shehab WS, Abdellattif MH, Mouneir SM. Recent advances in chemistry and pharmacological aspects of 2-pyridone scaffolds. JOURNAL OF SAUDI CHEMICAL SOCIETY 2021. [DOI: 10.1016/j.jscs.2021.101259] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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11
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Gulati S, John SE, Shankaraiah N. Microwave-assisted multicomponent reactions in heterocyclic chemistry and mechanistic aspects. Beilstein J Org Chem 2021; 17:819-865. [PMID: 33968258 PMCID: PMC8077743 DOI: 10.3762/bjoc.17.71] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 04/01/2021] [Indexed: 12/13/2022] Open
Abstract
Microwave-assisted (MWA) multicomponent reactions (MCRs) have successfully emerged as one of the useful tools in the synthesis of biologically relevant heterocycles. These reactions are strategically employed for the generation of a variety of heterocycles along with multiple point diversifications. Over the last few decades classical MCRs such as Ugi, Biginelli, etc. have witnessed enhanced yield and efficiency with microwave assistance. The highlights of MWA-MCRs are high yields, reduced reaction time, selectivity, atom economy and simpler purification techniques, such an approach can accelerate the drug discovery process. The present review focuses on the recent advances in MWA-MCRs and their mechanistic insights over the past decade and shed light on its advantage over the conventional approach.
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Affiliation(s)
- Shivani Gulati
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Stephy Elza John
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
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12
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Bae D, Lee J, Jin H, Ryu DH. Bifunctional Urea/Hg(OAc) 2-Mediated Synthesis of 4-Aryl-6-oxycarbonyl-2-pyrones and 2-Pyridones from Dithiomalonate and β,γ-Unsaturated α-Keto Esters. J Org Chem 2021; 86:6001-6014. [PMID: 33819048 DOI: 10.1021/acs.joc.1c00323] [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
Disubstituted 2-pyrones and 2-pyridones were obtained by bifunctional urea-catalyzed Michael addition/lactonization or lactamization followed by a Hg(OAc)2- or Hg(OAc)2/DBU-mediated hydrolysis/decarboxylation/dehydrogenation process. This one-pot two-stage protocol enabled the rapid synthesis of 4,6-disubstituted 2-pyrones and 2-pyridones from dithiomalonate and β,γ-unsaturated α-keto esters in practical yields under mild reaction conditions. Additionally, the obtained 2-pyridones were facilely transformed to 2,4,6-trisubstituted pyridines in excellent yields.
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Affiliation(s)
- Daeil Bae
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
| | - Juyeol Lee
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
| | - Hui Jin
- Liaoning Province Key Laboratory of Green Functional Molecular Design and Development, Institute of Functional Molecules, Shenyang University of Chemical Technology, Shenyang 110142, China
| | - Do Hyun Ryu
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
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13
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Yang Y, Jiang K, Zhu H, Yin B. Synthesis of Highly Conjugated Functionalized 2-Pyridones by Palladium-Catalyzed Aerobic Oxidative Dicarbonation Reactions of N-(Furan-2-ylmethyl) Alkyne Amides and Alkenes as Coupling Partners. J Org Chem 2021; 86:2748-2759. [PMID: 33459019 DOI: 10.1021/acs.joc.0c02730] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A mild, step-economical method for the synthesis of highly conjugated functionalized 2-pyridones from N-(furan-2-ylmethyl) alkyne amides is reported. This method involves Pd-catalyzed aerobic oxidative dicarbonation reactions of alkynes with carbon nucleophiles of a furan ring and an acrylate or styrene as coupling partners. The UV-vis absorption spectra of some of the 2-pyridones indicated that they absorbed shortwave radiation, suggesting their potential utility for filtration of such radiation.
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Affiliation(s)
- Yongjie Yang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Kai Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Hua Zhu
- Guangxi Key Laboratory of Zhuang and Yao Ethnic Medicine, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Biaolin Yin
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
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14
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Kamble SB, Bhore RK, Tilve SG. A single pot organocatalytic diastereoselective synthesis of fluorescent ring fused 2-pyridone decalines via a domino Knoevenagel/Michael/hydro-lactamisation sequence. Org Chem Front 2021. [DOI: 10.1039/d1qo00582k] [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 highly efficient one-pot triple cascade approach is developed to synthesise fluorescent, fused, octahydro-2-pyridone decalines in good to excellent yields using l-proline/PhCOOH as an organocatalyst.
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Affiliation(s)
- Sumit B. Kamble
- Department of Salt and Marine Chemicals, CSIR-Central Salt and Marine Chemicals Research Institute, Gijubhai Badekha Marg, Waghawadi road, Bhavnagar, Gujarat – 364002, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, Uttar Pradesh, India
- School of Chemical Sciences, Goa University, Taleigao Plateau, Goa – 403206, India
| | - Ranjeet K. Bhore
- Department of Salt and Marine Chemicals, CSIR-Central Salt and Marine Chemicals Research Institute, Gijubhai Badekha Marg, Waghawadi road, Bhavnagar, Gujarat – 364002, India
| | - Santosh G. Tilve
- School of Chemical Sciences, Goa University, Taleigao Plateau, Goa – 403206, India
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15
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Kiren S, Grimes F, Mohammed H, Alazawi D. A facile synthesis of 4-azaisoindoles and their transformation into novel pyrrole-fused 2-pyridones. Tetrahedron 2021. [DOI: 10.1016/j.tet.2020.131807] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Liu S, Li J, Lin J, Liu F, Liu T, Huang C. Substituent-controlled chemoselective synthesis of multi-substituted pyridones via a one-pot three-component cascade reaction. Org Biomol Chem 2020; 18:1130-1134. [DOI: 10.1039/c9ob02456e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A substituent-controlled chemoselective cycloaddition reaction which afforded a variety of 2-pyridones and 4-pyridones in good to excellent yields, respectively, has been developed.
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Affiliation(s)
- Shitao Liu
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials
- Key Laboratory of Intelligent Supramolecular Chemistry at the University of Yunnan Province
- School of Chemistry and Environment
- Yunnan Minzu University
- Kunming
| | - Jisen Li
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials
- Key Laboratory of Intelligent Supramolecular Chemistry at the University of Yunnan Province
- School of Chemistry and Environment
- Yunnan Minzu University
- Kunming
| | - Junjie Lin
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials
- Key Laboratory of Intelligent Supramolecular Chemistry at the University of Yunnan Province
- School of Chemistry and Environment
- Yunnan Minzu University
- Kunming
| | - Fujun Liu
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials
- Key Laboratory of Intelligent Supramolecular Chemistry at the University of Yunnan Province
- School of Chemistry and Environment
- Yunnan Minzu University
- Kunming
| | - Teng Liu
- Center for Yunnan-Guizhou Plateau Chemical Functional Materials and Pollution Control
- Qujing Normal University
- Qujing
- P. R. China
| | - Chao Huang
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials
- Key Laboratory of Intelligent Supramolecular Chemistry at the University of Yunnan Province
- School of Chemistry and Environment
- Yunnan Minzu University
- Kunming
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17
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Chen XB, Xiong SL, Xie ZX, Wang YC, Liu W. Three-Component One-Pot Synthesis of Highly Functionalized Bis-Indole Derivatives. ACS OMEGA 2019; 4:11832-11837. [PMID: 31460292 PMCID: PMC6682060 DOI: 10.1021/acsomega.9b01159] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 06/25/2019] [Indexed: 05/10/2023]
Abstract
In this study, we detail the development of a concise and efficient three-component protocol for the regioselective synthesis of highly functionalized bis-indoles through a one-pot, two-step sequential process starting from enaminones 1, indoles 2, and acenaphthylene-1,2-dione 3 that is catalyzed by piperidine and p-methyl benzenesulfonic acid. This protocol has several advantages including simplicity of experimental operation, high efficiency of bond formation, ready availability and low cost of starting materials, environmentally benign conditions, and target molecular diversity.
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Affiliation(s)
- Xue-Bing Chen
- School
of Science, Honghe University, Mengzi, 661100 Yunnan, P. R. China
| | - Sheng-Li Xiong
- School
of Science, Honghe University, Mengzi, 661100 Yunnan, P. R. China
| | - Zhi-Xu Xie
- School
of Science, Honghe University, Mengzi, 661100 Yunnan, P. R. China
| | - Yong-Chao Wang
- School
of Vocational and Technical Education, Yunnan
Normal University, Kunming 650092, P. R. China
| | - Wei Liu
- School
of Science, Honghe University, Mengzi, 661100 Yunnan, P. R. China
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Synthesis and evaluation of tetrahydroquinolin-2(1H)-one derivatives as novel anti-pancreatic cancer agents via targeting autophagy. Eur J Med Chem 2019; 170:28-44. [DOI: 10.1016/j.ejmech.2019.03.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 03/05/2019] [Accepted: 03/05/2019] [Indexed: 12/12/2022]
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Transition-metal-free highly efficient synthesis of 2-pyridones from β-keto amides and ynals. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.04.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Li J, Duan W, Pan X, Ye Y, Huang C. Microwave Irradiation Tandem Hydroamination and Oxidative Cyclization of Natural Amino Acids with Diethyl Acetylenedicarboxylate for Functionalized Pyrrole Derivatives. ChemistrySelect 2019. [DOI: 10.1002/slct.201900198] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jisen Li
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased MaterialsSchool of Chemistry and EnvironmentYunnan Minzu University Kunming 650500, P. R. China
| | - Wenwen Duan
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased MaterialsSchool of Chemistry and EnvironmentYunnan Minzu University Kunming 650500, P. R. China
| | - Xiaoxia Pan
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased MaterialsSchool of Chemistry and EnvironmentYunnan Minzu University Kunming 650500, P. R. China
| | - Yanqing Ye
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased MaterialsSchool of Chemistry and EnvironmentYunnan Minzu University Kunming 650500, P. R. China
| | - Chao Huang
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased MaterialsSchool of Chemistry and EnvironmentYunnan Minzu University Kunming 650500, P. R. China
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