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Li M, Yang S, Zhang J, Gao Z, Zheng L, Lu F, Feng Y. Electrochemical oxidative selective halogenation of pyrazolones for the synthesis of 4-halopyrazolones. Org Biomol Chem 2024. [PMID: 39034644 DOI: 10.1039/d4ob00982g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2024]
Abstract
An efficient and environmentally friendly electrochemical oxidative selective halogenation of pyrazolones has been developed under conditions free of metals, external oxidants, and external supporting electrolytes. The reaction demonstrates good functional group tolerance and maintains high efficiency in large-scale synthesis, yielding moderate to excellent yields of the desired 4-halopyrazolones. This method provides a green and convenient route for the direct installation of a halogen moiety into bioactive pyrazolone derivatives, which can be utilized in a myriad of applications.
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Affiliation(s)
- Minghan Li
- The National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, 56 Yangming Road, Jiangxi, Nanchang 330006, P. R. China.
| | - Shilin Yang
- The National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, 56 Yangming Road, Jiangxi, Nanchang 330006, P. R. China.
| | - Jingyi Zhang
- The National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, 56 Yangming Road, Jiangxi, Nanchang 330006, P. R. China.
| | - Zixun Gao
- The National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, 56 Yangming Road, Jiangxi, Nanchang 330006, P. R. China.
| | - Linyu Zheng
- The National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, 56 Yangming Road, Jiangxi, Nanchang 330006, P. R. China.
| | - Fangling Lu
- The National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, 56 Yangming Road, Jiangxi, Nanchang 330006, P. R. China.
| | - Yulin Feng
- The National Pharmaceutical Engineering Center for Solid Preparation in Chinese Herbal Medicine, Jiangxi University of Chinese Medicine, 56 Yangming Road, Jiangxi, Nanchang 330006, P. R. China.
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Phakdeeyothin K, Viriyanukul T, Udomsasporn K, Phomphrai K, Yotphan S. Metal‐Free Aminomethylation of Pyrazolones: Direct Access to 4‐Aminomethylated Pyrazolones. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200467] [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)
- Kunita Phakdeeyothin
- Department of Chemistry and Center of Excellence for Innovation in Chemistry Faculty of Science Mahidol University 10400 Bangkok Thailand
| | - Tarm Viriyanukul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry Faculty of Science Mahidol University 10400 Bangkok Thailand
| | - Kwanchanok Udomsasporn
- Department of Materials Science and Engineering School of Molecular Science and Engineering Vidyasirimedhi Instituteof Science and Technology (VISTEC) 21210 Wangchan Rayong Thailand
| | - Khamphee Phomphrai
- Department of Materials Science and Engineering School of Molecular Science and Engineering Vidyasirimedhi Instituteof Science and Technology (VISTEC) 21210 Wangchan Rayong Thailand
| | - Sirilata Yotphan
- Department of Chemistry and Center of Excellence for Innovation in Chemistry Faculty of Science Mahidol University 10400 Bangkok Thailand
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3
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Beukeaw D, Rattanasupaponsak N, Kittikool T, Phakdeeyothin K, Phomphrai K, Yotphan S. Metal‐Free Site‐Selective Direct Oxidative Phosphorylation of Pyrazolones. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200533] [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]
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Wen K, Wu Y, Chen J, Shi J, Zheng M, Yao X, Tang X. Copper-Mediated Decarboxylative Coupling of 3-Indoleacetic Acids with Pyrazolones. ACS OMEGA 2022; 7:5274-5282. [PMID: 35187342 PMCID: PMC8851627 DOI: 10.1021/acsomega.1c06443] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 01/24/2022] [Indexed: 05/05/2023]
Abstract
A copper-mediated decarboxylative coupling reaction of 3-indoleacetic acids with pyrazolones was described. This protocol realized new functionalization of pyrazolones under simple reaction conditions and exhibited high functional group compatibility and broad substrate scope. Notably, the products displayed antiproliferative activity against cancer cells.
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Sonowal P, Bhorali P, Sultana S, Gogoi S. Pd(ii)-Catalyzed regioselective functionalization of antipyrines: synthesis of pyrazolono-maleimides and pyrazolono-quinones. Org Biomol Chem 2021; 19:5333-5341. [PMID: 34042935 DOI: 10.1039/d1ob00819f] [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 Pd(ii)-catalyzed direct functionalization reaction of the 4Csp2-H bond of antipyrine derivatives is reported. This metal-catalyzed reaction of antipyrines with maleimides provided an easy and efficient access to biologically important pyrazolonomaleimides. This catalytic system is also applicable for C-4 functionalization of the antipyrine ring with quinone derivatives.
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Affiliation(s)
- Priya Sonowal
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, AcSIR, Ghaziabad-201002, India.
| | - Pratiksha Bhorali
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, AcSIR, Ghaziabad-201002, India.
| | - Sabera Sultana
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, AcSIR, Ghaziabad-201002, India.
| | - Sanjib Gogoi
- Applied Organic Chemistry, Chemical Sciences & Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, AcSIR, Ghaziabad-201002, India.
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Sasmal A, Bera JK, Doucet H, Soulé JF. Reactivity of antipyrine and haloantipyrines in Pd-catalyzed C H bond arylations. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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7
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Kittikool T, Yotphan S. Metal-Free Direct C-H Thiolation and Thiocyanation of Pyrazolones. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901770] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Tanakorn Kittikool
- Department of Chemistry and Center of Excellence for Innovation in Chemistry; Faculty of Science; Mahidol University; Rama VI Road 10400 Bangkok Thailand
| | - Sirilata Yotphan
- Department of Chemistry and Center of Excellence for Innovation in Chemistry; Faculty of Science; Mahidol University; Rama VI Road 10400 Bangkok Thailand
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Vivek Kumar S, Banerjee S, Punniyamurthy T. Transition metal-catalyzed coupling of heterocyclic alkenes via C–H functionalization: recent trends and applications. Org Chem Front 2020. [DOI: 10.1039/d0qo00279h] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Heterocyclic alkenes and their derivatives are an important class of reactive feedstock and valuable synthons. This review highlights the transition-metal-catalyzed coupling of heterocyclic alkenes via a C–H functionalization strategy.
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