1
|
Xie Y, Zhang Z, Zhang B, He N, Peng M, Song S, Wang B, Yu F. Oxidative Free-Radical C(sp 2)-H Bond Chlorination of Enaminones with LiCl: Access to Highly Functionalized α-Chlorinated Enaminones. J Org Chem 2024; 89:8521-8530. [PMID: 38828704 DOI: 10.1021/acs.joc.4c00456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
An oxidative free-radical C(sp2)-H bond chlorination strategy of enaminones has been developed by using LiCl as a chlorinating reagent and K2S2O8 as an oxidant. This transformation provides a new and straightforward synthetic methodology to afford highly functionalized α-chlorinated enaminones with a Z-configuration in good to excellent yields.
Collapse
Affiliation(s)
- Yunhua Xie
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Zhilai Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Biao Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Nengqin He
- Yunnan Key Laboratory for Pollution Processes and Control of Plateau Lake-Watersheds, Yunnan Academy of Ecological and Environmental Sciences, Kunming 650500, P. R. China
| | - Menglin Peng
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Siyu Song
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Baoqu Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| | - Fuchao Yu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, P. R. China
| |
Collapse
|
2
|
Cui HL. Recent advances in oxidative chlorination. Org Biomol Chem 2024; 22:1580-1601. [PMID: 38312070 DOI: 10.1039/d3ob02012f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
Considering the wide occurrence and extensive application of organic chlorides in many research fields, the development of easy, practical and green chlorination methodologies is much needed. In the oxidative chlorination strategy, active chlorinating species can be in situ formed by the interaction of easily accessible chlorides such as NaCl, HCl, KCl, CHCl3, etc. and suitable oxidants. Among the established chlorination approaches, this strategy is an attractive one as it features the use of readily available, cheap and safe inorganic or organic chlorides, good atom economy of chlorine, and multiple choices of oxidants. This review summarizes the representative methodologies in the field of oxidative chlorination, covering 2013 to 2023.
Collapse
Affiliation(s)
- Hai-Lei Cui
- Laboratory of Asymmetric Synthesis, College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing, 402160, PR China.
| |
Collapse
|
3
|
Romero AH. C-H Bond Functionalization of N-Heteroarenes Mediated by Selectfluor. Top Curr Chem (Cham) 2023; 381:29. [PMID: 37736818 DOI: 10.1007/s41061-023-00437-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 08/21/2023] [Indexed: 09/23/2023]
Abstract
Herein, recent developments for Selectfluor-mediated C-H functionalization of N-heteroarenes are described. This type of C-H bond activation is an attractive and competitive alternative to traditional methodologies, allowing the functionalization of a variety of chemical functions. In addition, Selectfluor is a more sustainable and economically accessible oxidant compared with expensive/toxic metals or hazardous peroxides. For a practical understanding, the current review classified systematically the reported strategies in four subsections as follows: (1) carbon-carbon formation, (2) carbon-nitrogen bond formation, (3) carbon-chalcogen bond, and (4) carbon-halogen bond formation. Mechanistic aspects and reaction conditions are fully discussed to provide an understanding of the aspects that govern C-H functionalization in N-heteroarenes mediated by Selectfluor.
Collapse
Affiliation(s)
- Angel H Romero
- Grupo de Química Orgánica Medicinal, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República, Igua 4225, 11400, Montevideo, Uruguay.
| |
Collapse
|
4
|
Jiang DB, Wu FY, Cui HL. Recent progress in the oxidative bromination of arenes and heteroarenes. Org Biomol Chem 2023; 21:1571-1590. [PMID: 36723168 DOI: 10.1039/d3ob00019b] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Oxidative bromination has been serving as a powerful tool for the synthesis of bromo-containing molecules, as this bromination strategy features environmental friendliness, high flexibility in reaction system design and wide abundance of bromide sources and oxidants. The past decade has witnessed a large number of efficient oxidative bromination reaction systems and novel brominated aromatics. This review summarizes recent developments in the field of oxidative preparation of bromoarenes and bromoheteroarenes covering from 2012 to 2022.
Collapse
Affiliation(s)
- Da-Bo Jiang
- Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing, 402160, PR China. .,State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, PR China
| | - Fei-Yue Wu
- Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing, 402160, PR China.
| | - Hai-Lei Cui
- Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing, 402160, PR China.
| |
Collapse
|
5
|
Dağalan Z, Koçak R, Daştan A, Nişancı B. Selectfluor and TBAX (Cl, Br) Mediated Oxidative Chlorination and Bromination of Olefins. Org Lett 2022; 24:8261-8264. [PMID: 36129307 PMCID: PMC9680025 DOI: 10.1021/acs.orglett.2c02627] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
Herein, we report
the first metal-free and molecular halogen reagent-free
dihomohalogenation methodology by using Selectfluor as an oxidant
and tetrabutylammonium bromide/chloride salts as a halogen source.
This effective strategy provides various fluorine-free halogenated
products easily in quantitative yields from alkenes, alkynes, and
natural products.
Collapse
Affiliation(s)
- Ziya Dağalan
- Department of Chemistry, Faculty of Sciences, Ataturk University, Erzurum 25240, Turkey
| | - Ramazan Koçak
- Department of Chemistry, Faculty of Sciences, Ataturk University, Erzurum 25240, Turkey
| | - Arif Daştan
- Department of Chemistry, Faculty of Sciences, Ataturk University, Erzurum 25240, Turkey
| | - Bilal Nişancı
- Department of Chemistry, Faculty of Sciences, Ataturk University, Erzurum 25240, Turkey
| |
Collapse
|
6
|
Guo S, Li Y, Fan W, Liu Z, Huang D. Copper(II)-Catalyzed Selective CAr-H Bond Formylation: Synthesis of Dialdehyde Aniline. Front Chem 2022; 10:891858. [PMID: 35685349 PMCID: PMC9171048 DOI: 10.3389/fchem.2022.891858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 04/07/2022] [Indexed: 11/20/2022] Open
Abstract
A simple and efficient method for the synthesis of dialdehyde aniline in good yields (up to 83%) is explored using Cu(OTf)2 as the catalyst, Selectfluor as the radical initiator, and DMSO as both the carbon and oxygen sources. Experimental studies indicate that the reaction is achieved by the formylation of two CAr-H bonds, first at the para-position and then at the ortho-position. A possible mechanism is proposed, including the thermal homolysis of Selectfluor, the Cu(II)-facilitated formylation of the CAr-H bonds, and the hydrolysis of the amide under alkaline conditions in air atmosphere.
Collapse
Affiliation(s)
- Shiwei Guo
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China
- College of Materials Science and Opto Electronic Technology, University of Chinese Academy of Sciences, Beijing, China
| | - Yinghua Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China
| | - Weibin Fan
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China
- College of Materials Science and Opto Electronic Technology, University of Chinese Academy of Sciences, Beijing, China
| | - Zhiqi Liu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China
| | - Deguang Huang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China
- *Correspondence: Deguang Huang,
| |
Collapse
|
7
|
Wang H, Ge G, Gao W, Luo J, Tang K. Selective C3–H nitration of 2-sulfanilamidopyridines with tert-butyl nitrite. Org Chem Front 2022. [DOI: 10.1039/d2qo00679k] [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 selective C3–H nitration of bioactive 2-sulfanilamidopyridine derivatives, including corticosteroid 11-β-dehydrogenase isozyme, secretory phospholipase A2 inhibitor and human neutrophil elastase inhibitor, has been reported.
Collapse
Affiliation(s)
- Huifang Wang
- Institute of Mass Spectrometry, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, P. R. China
| | - Guoping Ge
- Institute of Mass Spectrometry, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, P. R. China
| | - Wenqing Gao
- Institute of Mass Spectrometry, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, P. R. China
| | - Junfei Luo
- Institute of Mass Spectrometry, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, P. R. China
| | - Keqi Tang
- Institute of Mass Spectrometry, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, P. R. China
| |
Collapse
|
8
|
Michelet V, Marsicano V, Arcadi A. Gold‐Catalyzed Regioselective Oxyfluorination / Oxydifluorination vs. Diketonization of Phthalimido‐Protected Propargylamines with Selectfluor. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101524] [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)
- Veronique Michelet
- University of Cote d'Azur: Universite de Nice Sophia Antipolis CHEMISTRY Parc Valrose 06100 NICE FRANCE
| | - Vincenzo Marsicano
- Nice University: Universite de Nice Sophia Antipolis Chemistry Parc Valrose FRANCE
| | - Antonio Arcadi
- University of L'Aquila Department of Physical and Chemical Sciences: Universita degli Studi dell'Aquila Dipartimento di Scienze Fisiche e Chimiche Chemistry L'Aquila ITALY
| |
Collapse
|
9
|
Hong SJ, Yoon CJ, Lim HN, Yeom H. Step‐Economical Route to 2‐Amido‐3‐bromobenzo[
b
]thiophenes
via
Ynamide Formation and Selectfluor‐Mediated Oxidative Bromocyclization. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Su Jeong Hong
- Eco-Friendly New Materials Research Center, Therapeutics&Biotechnology Division Korea Research Institute of Chemical Technology (KRICT) 141 Gajeong-ro, Yuseong-gu Daejeon 34114 Republic of Korea
- Department of Chemistry Hanyang University 222, Wangsimni-ro, Seongdong-gu Seoul 04763 Republic of Korea
| | - Chang Ju Yoon
- Eco-Friendly New Materials Research Center, Therapeutics&Biotechnology Division Korea Research Institute of Chemical Technology (KRICT) 141 Gajeong-ro, Yuseong-gu Daejeon 34114 Republic of Korea
- Department of Chemistry Sungkyunkwan University 2066, Seobu-ro, Jangan-gu, Suwon-si Gyeonggi-do 16419 Republic of Korea
| | - Hee Nam Lim
- Department of Chemistry and Biochemistry Yeungnam University 280 Daehak-Ro, Gyeongsan Gyeongbuk 38541 Republic of Korea
| | - Hyun‐Suk Yeom
- Eco-Friendly New Materials Research Center, Therapeutics&Biotechnology Division Korea Research Institute of Chemical Technology (KRICT) 141 Gajeong-ro, Yuseong-gu Daejeon 34114 Republic of Korea
| |
Collapse
|
10
|
Mal S, Jana M, Sarkar S. Recent Update on Transition Metal‐Free C(sp
2
)−H Bond Halogenation in (Hetero) Arenes. ChemistrySelect 2021. [DOI: 10.1002/slct.202102956] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Sourav Mal
- Department of Chemistry University of Kalyani Kalyani 741235 West Bengal India
| | - Manoranjan Jana
- Department of Chemistry University of Kalyani Kalyani 741235 West Bengal India
| | - Satinath Sarkar
- Department of Chemistry University of Kalyani Kalyani 741235 West Bengal India
| |
Collapse
|
11
|
Chehardoli G, Zolfigo MA, Mallakpour S. Applications of Selectfluor for the oxidation of Sulfides, urazoles and alcohols under the solvent-free conditions. CURRENT ORGANOCATALYSIS 2020. [DOI: 10.2174/2213337207999200909114816] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
:
Selectfluor acts as a safe and efficient reagent for the oxidation of urazoles, alcohols and also sulfides via releasing the electrophile F under the solvent-free conditions. In room temperature, this reagent cannot oxidize the substrates alone and requires KBr as the catalyst. In the proposed mechanism, Selectfluor converts the Br-
to the Br-F and the
lone-pair electron of substrates attack to Br-F to perform the oxidation reaction. This procedure offers some advantages;
for example short reaction time, simple work-up, good yield and matching with some green chemistry approaches.
Collapse
Affiliation(s)
- Gholamabbas Chehardoli
- Medicinal Plants and Natural Products Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | | | - Shadpour Mallakpour
- Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Isfahan University of Technology, Isfahan , Iran
| |
Collapse
|
12
|
Zhao J, Xiao Q, Chen J, Xu J. Metal‐Free Synthesis of Imidazo[2,1‐
b
]thiazoles from Thioimidazoles and Ketones Mediated by Selectfluor. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000815] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jinwu Zhao
- School of Pharmacy Guangdong Medical University No.1 Xincheng Blvd, Songshan Lake National High‐tech Industrial Development Zone 523808 Dongguan China
- Key Laboratory of Big Data Mining and Precision Drug Design Guangdong Medical University No.1 Xincheng Blvd, Songshan Lake National High‐tech Industrial Development Zone 523808 Dongguan China
| | - Qiannan Xiao
- School of Pharmacy Guangdong Medical University No.1 Xincheng Blvd, Songshan Lake National High‐tech Industrial Development Zone 523808 Dongguan China
- Key Laboratory of Big Data Mining and Precision Drug Design Guangdong Medical University No.1 Xincheng Blvd, Songshan Lake National High‐tech Industrial Development Zone 523808 Dongguan China
| | - Jiaxi Chen
- School of Pharmacy Guangdong Medical University No.1 Xincheng Blvd, Songshan Lake National High‐tech Industrial Development Zone 523808 Dongguan China
| | - Jingxiu Xu
- School of Pharmacy Guangdong Medical University No.1 Xincheng Blvd, Songshan Lake National High‐tech Industrial Development Zone 523808 Dongguan China
- Key Laboratory of Big Data Mining and Precision Drug Design Guangdong Medical University No.1 Xincheng Blvd, Songshan Lake National High‐tech Industrial Development Zone 523808 Dongguan China
| |
Collapse
|
13
|
Xia X, Zhao M, He W, Zou L, San X, Wang D. Metal‐Free Oxidative [5+1] Cyclization of 1,5‐Enynes for the Synthesis of Pyrazine 1‐Oxide. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000756] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Xiao‐Feng Xia
- Key Laboratory of Synthetic and Biological ColloidsMinistry of EducationSchool of Chemical and Material EngineeringJiangnan University Wuxi Jiangsu 214122 People's Republic of China
| | - Mingming Zhao
- Key Laboratory of Synthetic and Biological ColloidsMinistry of EducationSchool of Chemical and Material EngineeringJiangnan University Wuxi Jiangsu 214122 People's Republic of China
| | - Wei He
- Key Laboratory of Synthetic and Biological ColloidsMinistry of EducationSchool of Chemical and Material EngineeringJiangnan University Wuxi Jiangsu 214122 People's Republic of China
| | - Lianghua Zou
- School of Pharmaceutical SciencesJiangnan University Wuxi Jiangsu 214122 People's Republic of China
| | - Xinxin San
- Key Laboratory of Synthetic and Biological ColloidsMinistry of EducationSchool of Chemical and Material EngineeringJiangnan University Wuxi Jiangsu 214122 People's Republic of China
| | - Dawei Wang
- Key Laboratory of Synthetic and Biological ColloidsMinistry of EducationSchool of Chemical and Material EngineeringJiangnan University Wuxi Jiangsu 214122 People's Republic of China
| |
Collapse
|
14
|
Yang K, Song M, Ali AIM, Mudassir SM, Ge H. Recent Advances in the Application of Selectfluor as a "Fluorine-free" Functional Reagent in Organic Synthesis. Chem Asian J 2020; 15:729-741. [PMID: 32068956 DOI: 10.1002/asia.202000011] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 02/16/2020] [Indexed: 11/09/2022]
Abstract
Selectfluor, [1-chloromethyl-4-fluoro-1,4-diazoniabicyclo-[2.2.2]octane bis(tetrafluoroborate)], is not only an important electrophilic fluorinating agent but also a facile and efficient "fluorine-free" functional reagent in other organic reactions. In this Minireview, we will present a brief history of Selectfluor as a transition metal oxidant, fluorine cation and radical initiator in "fluorine-free" functionalizations over the last five years.
Collapse
Affiliation(s)
- Ke Yang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu, 213164, China.,Department of Chemistry and Chemical Biology, Indiana University Purdue University Indianapolis, Indianapolis, Indiana, 46202, USA
| | - Mengjie Song
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu, 213164, China
| | - Ahmed I M Ali
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, 79409, USA
| | - Syed M Mudassir
- Department of Chemistry and Chemical Biology, Indiana University Purdue University Indianapolis, Indianapolis, Indiana, 46202, USA
| | - Haibo Ge
- Department of Chemistry and Chemical Biology, Indiana University Purdue University Indianapolis, Indianapolis, Indiana, 46202, USA.,Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas, 79409, USA
| |
Collapse
|
15
|
Mei H, Liu J, Pajkert R, Röschenthaler GV, Han J. A Selectfluor-promoted oxidative reaction of disulfides and amines: access to sulfinamides. Org Biomol Chem 2020; 18:3761-3766. [DOI: 10.1039/d0ob00720j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
An unprecedented metal-free oxidative reaction of disulfides and amines with Selectfluor as a mild oxidant under aerobic conditions was developed.
Collapse
Affiliation(s)
- Haibo Mei
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Jiang Liu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Romana Pajkert
- Department of Life Sciences and Chemistry
- Jacobs University Bremen gGmbH
- 28759 Bremen
- Germany
| | | | - Jianlin Han
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| |
Collapse
|
16
|
Yuan JW, Zhu JL, Li B, Yang LY, Mao P, Zhang SR, Li YC, Qu LB. Transition-metal free C3-amidation of quinoxalin-2(1H)-ones using Selectfluor as a mild oxidant. Org Biomol Chem 2019; 17:10178-10187. [PMID: 31763665 DOI: 10.1039/c9ob02157d] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A practical and efficient synthetic route to construct a variety of 3-amidated quinoxalin-2(1H)-ones was developed via transition-metal free direct oxidative amidation of quinoxalin-2(1H)-ones with amidates using Selectfluor reagent as a mild oxidant. This protocol features mild reaction conditions, operational simplicity, broad substrate scope, and good to excellent yields.
Collapse
Affiliation(s)
- Jin-Wei Yuan
- School of Chemistry & Chemical Engineering, Henan University of Technology; Academician Workstation for Natural Medicinal Chemistry of Henan Province, Zhengzhou 450001, China.
| | - Jun-Liang Zhu
- School of Chemistry & Chemical Engineering, Henan University of Technology; Academician Workstation for Natural Medicinal Chemistry of Henan Province, Zhengzhou 450001, China.
| | - Bing Li
- School of Chemistry & Chemical Engineering, Henan University of Technology; Academician Workstation for Natural Medicinal Chemistry of Henan Province, Zhengzhou 450001, China.
| | - Liang-Yu Yang
- School of Chemistry & Chemical Engineering, Henan University of Technology; Academician Workstation for Natural Medicinal Chemistry of Henan Province, Zhengzhou 450001, China.
| | - Pu Mao
- School of Chemistry & Chemical Engineering, Henan University of Technology; Academician Workstation for Natural Medicinal Chemistry of Henan Province, Zhengzhou 450001, China.
| | - Shou-Ren Zhang
- Henan Key Laboratory of Nanocomposites and Applications; Institute of Nanostructured Functional Materials, Huanghe Science and Technology College, Zhengzhou 450006, China
| | - Yan-Chun Li
- Henan Key Laboratory of Nanocomposites and Applications; Institute of Nanostructured Functional Materials, Huanghe Science and Technology College, Zhengzhou 450006, China
| | - Ling-Bo Qu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
| |
Collapse
|
17
|
Tang L, Yang Z, Yang F, Huang Y, Chen H, Cheng H, Song W, Ren B, Zhou Q. Catalyst‐Free α‐Aminoxylation of 1,3‐Dicarbonyl Compounds with TEMPO Using Selectfluor as an Oxidant. ChemistrySelect 2019. [DOI: 10.1002/slct.201903856] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Lin Tang
- College of Chemistry and Chemical EngineeringXinyang Normal University Xinyang 464000 P. R. China
| | - Zhen Yang
- College of Chemistry and Chemical EngineeringXinyang Normal University Xinyang 464000 P. R. China
| | - Fang Yang
- College of Chemistry and Chemical EngineeringXinyang Normal University Xinyang 464000 P. R. China
| | - Yifan Huang
- College of Chemistry and Chemical EngineeringXinyang Normal University Xinyang 464000 P. R. China
| | - Hanfei Chen
- College of Chemistry and Chemical EngineeringXinyang Normal University Xinyang 464000 P. R. China
| | - Hao Cheng
- College of Chemistry and Chemical EngineeringXinyang Normal University Xinyang 464000 P. R. China
| | - Weiyan Song
- College of Chemistry and Chemical EngineeringXinyang Normal University Xinyang 464000 P. R. China
| | - Bo Ren
- College of Chemistry and Chemical EngineeringXinyang Normal University Xinyang 464000 P. R. China
| | - Qiuju Zhou
- College of Chemistry and Chemical EngineeringXinyang Normal University Xinyang 464000 P. R. China
| |
Collapse
|