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Shuai S, Mao J, Zhou F, Yan Q, Chen L, Li J, Walsh PJ, Liang G. Base-Promoted Synthesis of Isoquinolines through a Tandem Reaction of 2-Methyl-arylaldehydes and Nitriles. J Org Chem 2024; 89:6793-6797. [PMID: 38691096 DOI: 10.1021/acs.joc.4c00123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
A convenient method for preparing 3-aryl isoquinolines via a base-promoted tandem reaction is presented. Simply combining commercially available 2-methyl-arylaldehydes, benzonitriles, NaN(SiMe3)2, and Cs2CO3 enabled the synthesis of a variety of isoquinolines (23 examples, ≤90% yield). Among the syntheses of isoquinolines, the transition metal-free method described here is straightforward, practical, and operationally simple.
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Affiliation(s)
- Sujuan Shuai
- School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, Zhejiang 311399, China
- Department of Pharmacy, School of Medicine, Zhejiang University City College, No. 48, Huzhou Road, Hangzhou 310015, P. R. China
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
| | - Jianyou Mao
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Fan Zhou
- School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, Zhejiang 311399, China
- Department of Pharmacy, School of Medicine, Zhejiang University City College, No. 48, Huzhou Road, Hangzhou 310015, P. R. China
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
| | - Qifeng Yan
- School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, Zhejiang 311399, China
- Department of Pharmacy, School of Medicine, Zhejiang University City College, No. 48, Huzhou Road, Hangzhou 310015, P. R. China
| | - Lingfeng Chen
- School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, Zhejiang 311399, China
| | - Jie Li
- School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, Zhejiang 311399, China
- Department of Pharmacy, School of Medicine, Zhejiang University City College, No. 48, Huzhou Road, Hangzhou 310015, P. R. China
| | - Patrick J Walsh
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Guang Liang
- School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, Zhejiang 311399, China
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Lin TC, Chan CK, Chung YH, Wang CC. Environmentally friendly Nafion-catalyzed synthesis of 3-substituted isoquinoline by using hexamethyldisilazane as a nitrogen source under microwave irradiation. Org Biomol Chem 2023; 21:7316-7326. [PMID: 37531171 DOI: 10.1039/d3ob01032e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
This study developed an eco-friendly method to synthesize 3-arylisoquinoline from 2-alkynylbenzaldehydes using Nafion® NR50 as an acidic catalyst and hexamethyldisilazane (HMDS) as a nitrogen source. The reaction proceeded via a 6-exo-dig cyclization under microwave irradiation, giving the corresponding isoquinolines in excellent yields. The advantages of this protocol include: (1) the use of recyclable acid catalysts, (2) transition-metal-free catalysis, and (3) the effective formation of the target product. These features make this methodology a promising approach for the sustainable and efficient synthesis of 3-arylisoquinoline. Some structures were also confirmed by single-crystal X-ray diffraction analysis.
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Affiliation(s)
- Tzu-Chun Lin
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan.
| | - Chieh-Kai Chan
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan.
| | - Yi-Hsiu Chung
- Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan.
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3
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Ma P, Wang Y, Wang J. Copper-Catalyzed Domino Three-Component Benzannulation: Access to Isoquinolines. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Peng Ma
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Yuhang Wang
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Jianhui Wang
- Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
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4
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Wen X, Liu X, Yang Z, Xie M, Liu Y, Long L, Chen Z. "On water" nano-Cu 2O-catalyzed CO-free one-pot multicomponent cascade cyanation-annulation-aminolysis reaction toward phthalimides. Org Biomol Chem 2021; 19:1738-1743. [PMID: 33543173 DOI: 10.1039/d1ob00073j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
An efficient nano-Cu2O-catalyzed cascade multicomponent reaction of 2-halobenzoic acids and trimethylsilyl cyanide with diverse amines was developed using water as a solvent, affording versatile N-substituted phthalimide derivatives in moderate to excellent yields. This novel strategy features carbon monoxide gas-free, environmentally benign, one-pot multistep transformation, commercially available reagents, a cheap catalyst without any additives, wide functional group tolerance, and operational convenience.
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Affiliation(s)
- Xiaowei Wen
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China.
| | - Xiaojuan Liu
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China.
| | - Zhiqi Yang
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China.
| | - Menglan Xie
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China.
| | - Yuxi Liu
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China.
| | - Lipeng Long
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China.
| | - Zhengwang Chen
- Key Laboratory of Organo-pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China.
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Yu Y, Guan M, Zhao YH, Xie W, Zhou Z, Tang Z. Efficient Synthesis of Isoquinoline and Its Derivatives: From
Metal Сatalysts to Catalyst-free Processes in Water. RUSS J GEN CHEM+ 2020. [DOI: 10.1134/s1070363220100266] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Gujjarappa R, Vodnala N, Malakar CC. Comprehensive Strategies for the Synthesis of Isoquinolines: Progress Since 2008. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000658] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Raghuram Gujjarappa
- Department of Chemistry National Institute of Technology Manipur Imphal 795004 Manipur India
| | - Nagaraju Vodnala
- Department of Chemistry National Institute of Technology Manipur Imphal 795004 Manipur India
| | - Chandi C. Malakar
- Department of Chemistry National Institute of Technology Manipur Imphal 795004 Manipur India
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Prasad B, Phanindrudu M, Tiwari DK, Kamal A. Transition-Metal-Free One-Pot Tandem Synthesis of 3-Ketoisoquinolines from Aldehydes and Phenacyl Azides. J Org Chem 2019; 84:12334-12343. [PMID: 31502837 DOI: 10.1021/acs.joc.9b01534] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
An efficient and transition-metal-free strategy for the synthesis of 3-keto-isoquinolines in one pot has been developed from the easily accessible 2-(formylphenyl)acrylates and phenacyl azides. Various substituted aldehydes and phenacyl azides were successfully employed in this transformation to furnish a variety 3-keto-isoquinolines in very good yields. A number of controlled experiments were conducted to postulate the reaction mechanism. Secondary functionalizations of 2-keto-isoquinolins were also performed to showcase the synthetic utility.
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Affiliation(s)
- Budaganaboyina Prasad
- Division of Organic Synthesis and Process Chemistry , CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India
| | - Mandalaparthi Phanindrudu
- Division of Organic Synthesis and Process Chemistry , CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India
| | - Dharmendra Kumar Tiwari
- Molecular Synthesis and Drug Discovery Laboratory, Center of Biomedical Research , Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus , Raebareli Road , Lucknow 226014 , India
| | - Ahmed Kamal
- School of Pharmaceutical Education and Research (SPER) , Jamia Hamdard , 110 062 New Delhi , India
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Motornov VA, Tabolin AA, Nelyubina YV, Nenajdenko VG, Ioffe SL. Copper-mediated oxidative [3 + 2]-annulation of nitroalkenes and pyridinium ylides: general access to functionalized indolizines and efficient synthesis of 1-fluoroindolizines. Org Biomol Chem 2019; 17:1442-1454. [PMID: 30672946 DOI: 10.1039/c8ob03126f] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A general method for the synthesis of substituted indolizines by copper(ii) acetate-promoted oxidative [3 + 2]-annulation of α-fluoronitroalkenes with in situ generated pyridinium ylides was developed. Application of the copper(ii) acetate-2,6-lutidine system provides efficient access to various 1-fluoroindolizines in up to 81% yield. Both electron-rich and electron-deficient nitroalkenes as well as different pyridinium and isoquinolinium salts can be involved in the reaction. Moreover, it was found that copper-mediated annulation is applicable for other α-substituted (alkyl, chloro, and ester) nitroalkenes giving rise to the corresponding indolizines. First synthesis of monofluorinated [3,2,2]cyclazines was demonstrated via oxidative annulation of 3-unsubstituted fluoroindolizines with diethyl acetylene dicarboxylate.
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Affiliation(s)
- Vladimir A Motornov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prosp. 47, Moscow, 119991, Russia.
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