1
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Zhan JL, Zhou SN, Wang Y, Liu R, Wang YT, Tian M, Meng Q, Zhu L, Kong X, Lv Y. Direct β-C-H ketoalkylation of enaminoesters with cyclopropanols under metal-free conditions. Org Biomol Chem 2025; 23:1823-1827. [PMID: 39812013 DOI: 10.1039/d4ob01968g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2025]
Abstract
A TEMPO-mediated β-ketoalkylation of enaminoesters with cyclopropanols under metal-free conditions is herein described. This reaction provides a straightforward and highly efficient route to β-keto alkyl substituted enaminoesters for the first time, which could be rapidly and efficiently converted into synthetically useful 2-alkoxycarbonyl functionalized 1,5-diketones. Moreover, the practicability of this protocol is successfully demonstrated by scale-up experiments and the late-stage functionalization of natural products and pharmaceutically relevant molecules.
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Affiliation(s)
- Jun-Long Zhan
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs. College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, 455000, P. R. China.
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Sai-Nan Zhou
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs. College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, 455000, P. R. China.
| | - Yu Wang
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs. College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, 455000, P. R. China.
| | - Rui Liu
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs. College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, 455000, P. R. China.
| | - Yu-Tong Wang
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs. College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, 455000, P. R. China.
| | - Mengke Tian
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs. College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, 455000, P. R. China.
| | - Qiang Meng
- School of Chemistry, Science, Monash University, Wellington Road, Clayton, VIC 3800, Australia.
| | - Lin Zhu
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs. College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, 455000, P. R. China.
| | - Xiangtao Kong
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs. College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, 455000, P. R. China.
| | - Yunhe Lv
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs. College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, 455000, P. R. China.
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2
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Xiong S, Pu J, Xiao T, Jiang Y. Synthesis of 2,3-Diperfluoroalkylated Quinoxalines via Selenium-Catalyzed Reductive C-C Coupling of Vicinal Perfluoroalkyl Formimidoyl Chlorides. Org Lett 2024; 26:8866-8871. [PMID: 39382382 DOI: 10.1021/acs.orglett.4c03308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2024]
Abstract
A direct and efficient approach to access structurally interesting 2,3-diperfluoroalkylated quinoxalines via selenium-catalyzed reductive C-C construction of vicinal bis(perfluoroalkyl formimidoyl chloride)s has been disclosed. This protocol features the use of easily accessible starting materials, scalability, and a diverse functional group tolerance. Mechanism studies suggested that this reaction may involve an interesting selenium-containing seven-membered-ring intermediate and proceed through an electrocyclization/selenium reductive elimination pathway, which is significantly different from the traditional transition-metal-catalyzed reductive coupling strategies of alkyl halides.
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Affiliation(s)
- Shaoqi Xiong
- Faculty of Science, Kunming University of Science and Technology, Kunming 650500, China
| | - Jijun Pu
- Faculty of Science, Kunming University of Science and Technology, Kunming 650500, China
| | - Tiebo Xiao
- Faculty of Science, Kunming University of Science and Technology, Kunming 650500, China
| | - Yubo Jiang
- Faculty of Science, Kunming University of Science and Technology, Kunming 650500, China
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3
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Elavarasan S, Preety J, Kesavan M, Patel RB, Baskar B. Activation of enamine by photoexcited organocatalyst assisted singlet oxygen: synthesis of oxazoles and quinoxalines. Org Biomol Chem 2024; 22:4912-4921. [PMID: 38808593 DOI: 10.1039/d4ob00609g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
Herein, a novel transition-metal-free thiol-based donor-acceptor organophotocatalyst-assisted, singlet-oxygen-mediated tandem oxidative cyclization for the synthesis of substituted oxazoles in moderate-to-good yields is described. The developed method demonstrates applicability for the synthesis of various substituted quinoxalines in good-to-excellent yields. The metal-free methodology shows a practical route for the synthesis of oxazole and quinoxaline derivatives, which are privileged moieties prevalent in various biologically active compounds and natural products. To the best of our knowledge, both the thiol photocatalyst and synthesis of oxazoles by visible-light irradiation are reported for the first time.
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Affiliation(s)
- Selvaraj Elavarasan
- Laboratory of Sustainable Synthesis, Department of Chemistry, SRM Institute of Science and Technology, Kattankulatur, 603 203, Chengalpet (Dt), Tamilnadu, India.
| | - Jeyaraj Preety
- Laboratory of Sustainable Synthesis, Department of Chemistry, SRM Institute of Science and Technology, Kattankulatur, 603 203, Chengalpet (Dt), Tamilnadu, India.
| | - M Kesavan
- Interdisciplinary Institute of Indian System of Medicine (IIISM), SRM Institute of Science and Technology, Kattankulatur, 603 203, Chengalpet (Dt), Tamilnadu, India
| | - Ravi B Patel
- Graduate School of Pharmacy, Gujarat Technological University, Ghandhinagar Campus, Ghandhinagar - 382028, Gujarat, India
| | - Baburaj Baskar
- Laboratory of Sustainable Synthesis, Department of Chemistry, SRM Institute of Science and Technology, Kattankulatur, 603 203, Chengalpet (Dt), Tamilnadu, India.
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4
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Farghaly TA, Alqurashi RM, Masaret GS, Abdulwahab HG. Recent Methods for the Synthesis of Quinoxaline Derivatives and their Biological Activities. Mini Rev Med Chem 2024; 24:920-982. [PMID: 37885112 DOI: 10.2174/0113895575264375231012115026] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 07/31/2023] [Accepted: 08/11/2023] [Indexed: 10/28/2023]
Abstract
Quinoxaline derivatives have been incorporated into numerous marketed drugs used for the treatment of various diseases. Examples include glecaprevir (Mavyret), voxilaprevir (Vosevi), Balversa (L01EX16) (erdafitinib), carbadox, XK469R (NSC698215), and becampanel (AMP397). These quinoxaline derivatives exhibit a diverse range of pharmacological activities, including antibacterial, antitubercular, antiviral, anti-HIV, anti-inflammatory, antifungal, anticancer, antiproliferative, antitumor, kinase inhibition, antimicrobial, antioxidant, and analgesic effects. Recognizing the significance of these bioactive quinoxaline derivatives, researchers have dedicated their efforts to developing various synthetic methods for their production. This review aimed to compile the most recent findings on the synthesis and biological properties of quinoxaline derivatives from 2015 to 2023.
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Affiliation(s)
- Thoraya A Farghaly
- Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Raghad M Alqurashi
- Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Ghada S Masaret
- Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Hanan Gaber Abdulwahab
- Department of Pharmaceutical Medicinal Chemistry and Drug Design, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
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5
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Baidya M, De Sarkar S. Synthesis of Quinoxalines through Cu-electrocatalytic Azidation/Annulation Cascade at Low Catalyst Loading. Org Lett 2023; 25:5896-5901. [PMID: 37515784 DOI: 10.1021/acs.orglett.3c02186] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/31/2023]
Abstract
A Cu-electrocatalytic azidation of N-aryl enamines and subsequent denitrogenative annulation for the construction of quinoxaline frameworks is reported. Only 0.5 mol % of copper(II) chloride was employed for this cascade transformation displaying excellent functional-group compatibility even with complex bioactive scaffolds. The efficient electro-oxidative protocol enables the use of NaN3 as the cheapest azide source. Detailed mechanistic experiments, cyclic voltammetry, and spectroscopic studies provided strong evidence for a dual role of the Cu catalyst in azidyl and iminyl radical generation steps.
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Affiliation(s)
- Mrinmay Baidya
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, West Bengal, India
| | - Suman De Sarkar
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, West Bengal, India
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6
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Phenyliodine(III)diacetate (PIDA): Applications in Organic Synthesis. ORGANICS 2022. [DOI: 10.3390/org4010001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
One of the hypervalent iodines most widely used as an oxidizing agent in organic chemistry is (diacetoxyiodo)benzene (PhI(OAc)2), also known as (DAIB), phenyliodine(III) diacetate (PIDA). In this septennial mini-review, the authors have concisely and systematically presented representative applications of PIDA in organic synthesis involving C-H functionalization, hetero-hetero bond formations, heterocyclic ring construction, rearrangements or migrations and miscellaneous reactions along with their interesting mechanistic aspects starting from the summer of 2015 to the present.
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7
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Xia XF, Niu YN. Recent developments in the synthesis of nitrogen-containing heterocycles from β-aminovinyl esters/ketones as CC-N donors. Org Biomol Chem 2022; 20:282-295. [PMID: 34877952 DOI: 10.1039/d1ob01998h] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Nitrogen-containing heterocycles are ubiquitous fragments of numerous natural products, pharmaceuticals, designed bioactive drug candidates and agrochemicals. During the past few decades, these compounds have received considerable attention from the synthetic chemistry community, and great efforts have been focused on the development of concise and efficient methods for the synthesis of these heterocyclic skeletons. In this review, we summarize a diverse range of synthetic methods employing β-aminovinyl esters(ketones) as key CC-N-synthons to furnish useful bioactive heterocyclic frameworks, such as quinolines, pyridines, pyrazines, pyrroles, indoles, oxazoles, imidazoles, thiazoles, isothiazoles, pyrazoles, triazoles, and azepines, thus offering new opportunities and expanding the toolbox of synthetic chemistry reactions.
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Affiliation(s)
- Xiao-Feng Xia
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu, 214122, People's Republic of China.
| | - Yan-Ning Niu
- Department of Teaching and Research, Nanjing Forestry University, Huai'an, Jiangsu, 223003, People's Republic of China.
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8
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M. Honnanayakanavar J, Owk O, Suresh S. Recent Advances in the Tandem Copper-Catalyzed Ullmann-Goldberg N-Arylation–Cyclization Strategies. Org Biomol Chem 2022; 20:2993-3028. [DOI: 10.1039/d2ob00082b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N‒Aryl bond formation under copper catalysis has been playing a pivotal role and has been extensively used as a key step in the total syntheses of several therapeutic molecules. The...
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9
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Cheng D, Shen Y, Wu Z, Xu X, Yan J. Metal-Free Tandem Oxidative Cyclization for the Synthesis of 1,2-Dihydropyridazines and Pyrazoles. J Org Chem 2021; 86:8563-8575. [PMID: 34133155 DOI: 10.1021/acs.joc.1c00020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Mediated by 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ), a novel oxidative coupling of hydrazones and 1,3-diarylpropenes has been disclosed to generate appealing β,γ-unsaturated hydrazones, which further undergo 5-exo-trig or 6-endo-trig cascade cyclization to give the respective 1,2-dihydropyridazines or pyrazoles selectively under metal-free conditions. The mechanisms of the coupling and subsequent cyclization are proposed.
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Affiliation(s)
- Dongping Cheng
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Yinqiang Shen
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Ziliang Wu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Xiaoliang Xu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Jizhong Yan
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, P. R. China
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10
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Muriel B, Waser J. Azide Radical Initiated Ring Opening of Cyclopropenes Leading to Alkenyl Nitriles and Polycyclic Aromatic Compounds. Angew Chem Int Ed Engl 2021; 60:4075-4079. [PMID: 33205851 DOI: 10.1002/anie.202013516] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/04/2020] [Indexed: 01/05/2023]
Abstract
We report herein a radical-mediated amination of cyclopropenes. The transformation proceeds through a cleavage of the three-membered ring after the addition of an azide radical on the strained double bond and leads to tetrasubstituted alkenyl nitrile derivatives upon loss of N2 . With 1,2-diaryl substituted cyclopropenes, this methodology could be extended to a one-pot synthesis of highly functionalized polycyclic aromatic compounds (PACs). This transformation allows the synthesis of nitrile-substituted alkenes and aromatic compounds from rapidly accessed cyclopropenes using only commercially available reagents.
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Affiliation(s)
- Bastian Muriel
- Laboratory of Catalysis and Organic Synthesis, Ecole Polytechnique Fédérale de Lausanne, EPFL, SB ISIC LCSO, BCH 4306, 1015, Lausanne, Switzerland
| | - Jerome Waser
- Laboratory of Catalysis and Organic Synthesis, Ecole Polytechnique Fédérale de Lausanne, EPFL, SB ISIC LCSO, BCH 4306, 1015, Lausanne, Switzerland
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11
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Muriel B, Waser J. Azide Radical Initiated Ring Opening of Cyclopropenes Leading to Alkenyl Nitriles and Polycyclic Aromatic Compounds. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202013516] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bastian Muriel
- Laboratory of Catalysis and Organic Synthesis Ecole Polytechnique Fédérale de Lausanne, EPFL, SB ISIC LCSO, BCH 4306 1015 Lausanne Switzerland
| | - Jerome Waser
- Laboratory of Catalysis and Organic Synthesis Ecole Polytechnique Fédérale de Lausanne, EPFL, SB ISIC LCSO, BCH 4306 1015 Lausanne Switzerland
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12
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Wang YB, Shi L, Zhang X, Fu LR, Hu W, Zhang W, Zhu X, Hao XQ, Song MP. NaOH-Mediated Direct Synthesis of Quinoxalines from o-Nitroanilines and Alcohols via a Hydrogen-Transfer Strategy. J Org Chem 2021; 86:947-958. [PMID: 33351617 DOI: 10.1021/acs.joc.0c02453] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A NaOH-mediated sustainable synthesis of functionalized quinoxalines is disclosed via redox condensation of o-nitroamines with diols and α-hydroxy ketones. Under optimized conditions, various o-nitroamines and alcohols are well tolerated to generate the desired products in 44-99% yields without transition metals and external redox additives.
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Affiliation(s)
- Yan-Bing Wang
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Linlin Shi
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xiaojie Zhang
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Lian-Rong Fu
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Weinan Hu
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Wenjing Zhang
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xinju Zhu
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xin-Qi Hao
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Mao-Ping Song
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
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13
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Li D, Yang J, Fan X. Ligand-free Pd(II)-catalyzed cyclization of α-chloroimino-N-arylamides to synthesis of quinoxalin-2(1H)-ones. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152556] [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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14
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An efficient method for the synthesis of quinoxaline derivatives catalyzed by titanium silicate-1. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04258-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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15
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Hashemi SA, Mohammadizadeh MR. Catalyst‐Free Efficient Synthesis of Alkyl Acetates Bearing Arylsulfide and Quinoxaline Moieties and Stereoselective Synthesis of Dialkyl 2‐Amino‐3‐thiomalates at Room Temperature. ChemistrySelect 2019. [DOI: 10.1002/slct.201901287] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
| | - Mohammad Reza Mohammadizadeh
- Department of ChemistryFaculty of SciencesPersian Gulf University Bushehr 75169 Iran
- Oil and Gas Research CenterPersian Gulf University Bushehr 75169 Iran
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16
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Wu D, Cui SS, Lin Y, Li L, Yu W. Visible Light-Driven Azidation/Difunctionalization of Vinyl Arenes with Azidobenziodoxole under Copper Catalysis. J Org Chem 2019; 84:10978-10989. [DOI: 10.1021/acs.joc.9b01569] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Danhua Wu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Shuang-Shuang Cui
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Yajun Lin
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Lin Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Wei Yu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, PR China
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17
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Zhang H, Shen J, Yang Z, Cui X. PIDA-mediated intramolecular oxidative C-N bond formation for the direct synthesis of quinoxalines from enaminones. RSC Adv 2019; 9:7718-7722. [PMID: 35521175 PMCID: PMC9061175 DOI: 10.1039/c9ra01200a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Accepted: 02/18/2019] [Indexed: 11/30/2022] Open
Abstract
A intramolecular oxidative C(sp2)-N bond formation mediated by hypervalent iodine(iii) to obtain quinoxalines from readily available N-(2-acetaminophenyl)enaminones was developed. A tandem process involving PIDA-mediated intramolecular condensation cyclization and a subsequent elimination was postulated, which was highly efficient and metal-free under mild conditions. Moreover, flexible structural modifications of quinoxalines bearing carbonyl groups are of interest for further transformations as building blocks in organic synthesis.
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Affiliation(s)
- Hong Zhang
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University Xiamen 361021 P. R. China
| | - Jinhai Shen
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University Xiamen 361021 P. R. China
| | - Zhenhui Yang
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University Xiamen 361021 P. R. China
| | - Xiuling Cui
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University Xiamen 361021 P. R. China
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18
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Liu Y, Ebadi AG, Youseftabar-Miri L, Hassanpour A, Vessally E. Methods for direct C(sp2)–H bonds azidation. RSC Adv 2019; 9:25199-25215. [PMID: 35528700 PMCID: PMC9069887 DOI: 10.1039/c9ra04534a] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 07/30/2019] [Indexed: 12/23/2022] Open
Abstract
Direct functionalization of C–H bonds has attracted great attention in recent years from the perspectives of atom and step economy.
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Affiliation(s)
- Ying Liu
- College of Science
- North China University of Science and Technology
- Tangshan 063210
- China
| | | | - Leila Youseftabar-Miri
- Department of Organic Chemistry
- Faculty of Pharmaceutical Chemistry
- Tehran Medical Sciences
- Islamic Azad University
- Tehran
| | - Akbar Hassanpour
- Department of Chemistry
- Marand Branch
- Islamic Azad University
- Marand
- Iran
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19
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Wu J, Zhang H, Ding X, Tan X, Shen HC, Chen J, He W, Deng H, Song L, Cao W. Efficient Synthesis of Fluoroalkylated Imidazoles via a Metal-Free Cascade Michael Addition/Azidation/Cycloamination Process. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801310] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jun Wu
- School of Materials Science and Engineering; Shanghai University; 200444 Shanghai P. R. China
- Roche Innovation Center Shanghai; Roche R&D Center (China) Ltd.; 201203 Shanghai P. R. China
| | - Hui Zhang
- Department of Chemistry; Shanghai University; 200444 Shanghai P. R. China
| | - Xiao Ding
- Roche Innovation Center Shanghai; Roche R&D Center (China) Ltd.; 201203 Shanghai P. R. China
| | - Xuefei Tan
- Roche Innovation Center Shanghai; Roche R&D Center (China) Ltd.; 201203 Shanghai P. R. China
| | - Hong C. Shen
- Roche Innovation Center Shanghai; Roche R&D Center (China) Ltd.; 201203 Shanghai P. R. China
| | - Jie Chen
- Department of Chemistry; Shanghai University; 200444 Shanghai P. R. China
| | - Weimin He
- Department of Chemistry; Shanghai University; 200444 Shanghai P. R. China
| | - Hongmei Deng
- Department of Chemistry; Shanghai University; 200444 Shanghai P. R. China
| | - Liping Song
- School of Materials Science and Engineering; Shanghai University; 200444 Shanghai P. R. China
- Department of Chemistry; Shanghai University; 200444 Shanghai P. R. China
| | - Weiguo Cao
- Department of Chemistry; Shanghai University; 200444 Shanghai P. R. China
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 200032 Shanghai P. R. China
- Key Laboratory of Organofluorine Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 200032 Shanghai P. R. China
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20
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Jiao YX, Wei LS, Zhao CY, Wei K, Mo DL, Pan CX, Su GF. Isobutyl Nitrite-Mediated Synthesis of Quinoxalines through Double C−H Bond Amination of N
-Aryl Enamines. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800928] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Yan-Xiao Jiao
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources; Ministry of Science and Technology of China; School of Chemistry and Pharmaceutical Sciences; Guangxi Normal University; 15 Yu Cai Road Guilin 541004, People's Republic of China
| | - Lin-Su Wei
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources; Ministry of Science and Technology of China; School of Chemistry and Pharmaceutical Sciences; Guangxi Normal University; 15 Yu Cai Road Guilin 541004, People's Republic of China
| | - Chun-Yang Zhao
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources; Ministry of Science and Technology of China; School of Chemistry and Pharmaceutical Sciences; Guangxi Normal University; 15 Yu Cai Road Guilin 541004, People's Republic of China
| | - Kai Wei
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources; Ministry of Science and Technology of China; School of Chemistry and Pharmaceutical Sciences; Guangxi Normal University; 15 Yu Cai Road Guilin 541004, People's Republic of China
| | - Dong-Liang Mo
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources; Ministry of Science and Technology of China; School of Chemistry and Pharmaceutical Sciences; Guangxi Normal University; 15 Yu Cai Road Guilin 541004, People's Republic of China
| | - Cheng-Xue Pan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources; Ministry of Science and Technology of China; School of Chemistry and Pharmaceutical Sciences; Guangxi Normal University; 15 Yu Cai Road Guilin 541004, People's Republic of China
| | - Gui-Fa Su
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources; Ministry of Science and Technology of China; School of Chemistry and Pharmaceutical Sciences; Guangxi Normal University; 15 Yu Cai Road Guilin 541004, People's Republic of China
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21
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Wu J, Zhang H, Ding X, Tan X, Chen J, He W, Deng H, Song L, Shen HC, Cao W. Potassium Iodide-Promoted One-Pot Synthesis of Fluoroalkylated Quinoxalines via a Tandem Michael Addition/Azidation/Cycloamination Approach. J Org Chem 2018; 83:9422-9429. [PMID: 30025451 DOI: 10.1021/acs.joc.8b01030] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Fluoroalkylated quinoxlines with various groups were efficiently synthesized via a one-pot tandem Michael addition/azidation/cycloamination process. Under the mild and metal-free conditions, a bis-imine intermediate (4a) was detected and isolated for the first time. KI played a crucial role in this reaction. The mechanism was described.
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Affiliation(s)
- Jun Wu
- School of Materials Science and Engineering , Shanghai University , Shanghai 200444 , China.,Roche Innovation Center Shanghai , Roche R&D Center (China) Ltd. , Shanghai 201203 , China
| | - Hui Zhang
- Department of Chemistry , Shanghai University , Shanghai 200444 , China
| | - Xiao Ding
- Roche Innovation Center Shanghai , Roche R&D Center (China) Ltd. , Shanghai 201203 , China
| | - Xuefei Tan
- Roche Innovation Center Shanghai , Roche R&D Center (China) Ltd. , Shanghai 201203 , China
| | - Jie Chen
- Department of Chemistry , Shanghai University , Shanghai 200444 , China
| | - Weimin He
- Department of Chemistry , Shanghai University , Shanghai 200444 , China
| | - Hongmei Deng
- Department of Chemistry , Shanghai University , Shanghai 200444 , China
| | - Liping Song
- School of Materials Science and Engineering , Shanghai University , Shanghai 200444 , China.,Department of Chemistry , Shanghai University , Shanghai 200444 , China
| | - Hong C Shen
- Roche Innovation Center Shanghai , Roche R&D Center (China) Ltd. , Shanghai 201203 , China
| | - Weiguo Cao
- Department of Chemistry , Shanghai University , Shanghai 200444 , China.,State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , Shanghai 200032 , China.,Key Laboratory of Organofluorine Chemistry , Shanghai institute of Organic Chemistry, Chinese Academy of Sciences , Shanghai 200032 , China
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22
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Guo Y, Xiang Y, Wei L, Wan JP. Thermoinduced Free-Radical C–H Acyloxylation of Tertiary Enaminones: Catalyst-Free Synthesis of Acyloxyl Chromones and Enaminones. Org Lett 2018; 20:3971-3974. [DOI: 10.1021/acs.orglett.8b01536] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Yanhui Guo
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Yunfeng Xiang
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Li Wei
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Jie-Ping Wan
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
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23
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Zhang H, Shen J, Cheng G, Wu B, Cui X. Base-Promoted Synthesis of 2,4,6-Triarylpyridines from Enaminones and Chalcones. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800231] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Hong Zhang
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs; School of Biomedical Sciences; Huaqiao University; Xiamen 361021 P. R. China
| | - Jinhai Shen
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs; School of Biomedical Sciences; Huaqiao University; Xiamen 361021 P. R. China
| | - Guolin Cheng
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs; School of Biomedical Sciences; Huaqiao University; Xiamen 361021 P. R. China
| | - Binjie Wu
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs; School of Biomedical Sciences; Huaqiao University; Xiamen 361021 P. R. China
| | - Xiuling Cui
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs; School of Biomedical Sciences; Huaqiao University; Xiamen 361021 P. R. China
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24
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Yang T, Fan X, Zhao X, Yu W. Iron-Catalyzed Acyl Migration of Tertiary α-Azidyl Ketones: Synthetic Approach toward Enamides and Isoquinolones. Org Lett 2018; 20:1875-1879. [DOI: 10.1021/acs.orglett.8b00409] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Tonghao Yang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xing Fan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xiaopeng Zhao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Wei Yu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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25
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Li D, Ma H, Li Y, Yu W. Visible light-promoted tandem azidation/cyclization of N-arylenamines towards quinoxalines. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2017.07.043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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26
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Zhang Y, Luo M, Li Y, Wang H, Ren X, Qi C. Facile, eco-friendly, catalyst-free synthesis of polyfunctionalized quinoxalines. Mol Divers 2017; 22:183-189. [PMID: 28980110 DOI: 10.1007/s11030-017-9777-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 08/02/2017] [Indexed: 02/05/2023]
Abstract
A novel, facile and eco-friendly synthesis of quinoxalines from [Formula: see text] and 1,2-diamines was developed. An attractive feature of this protocol is that the desired products could be generated efficiently in water and without any catalyst, which is in accordance with the aim of green chemistry. A plausible mechanism has been proposed.
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Affiliation(s)
- Yaohong Zhang
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, 312000, Zhejiang, People's Republic of China
| | - Mengqiang Luo
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, 312000, Zhejiang, People's Republic of China
| | - Yan Li
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, 312000, Zhejiang, People's Republic of China
| | - Hai Wang
- School of Life Science, Shaoxing University, Shaoxing, 312000, Zhejiang, People's Republic of China
| | - Xiaorong Ren
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, 312000, Zhejiang, People's Republic of China
| | - Chenze Qi
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process, School of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, 312000, Zhejiang, People's Republic of China.
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27
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Arepally S, Babu VN, Bakthadoss M, Sharada DS. A Direct Cycloaminative Approach to Imidazole Derivatives via Dual C–H Functionalization. Org Lett 2017; 19:5014-5017. [DOI: 10.1021/acs.orglett.7b01840] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Sagar Arepally
- Department
of Chemistry, Indian Institute of Technology Hyderabad, Kandi 502 285, Sangareddy, Telangana, India
| | - Venkata Nagarjuna Babu
- Department
of Chemistry, Indian Institute of Technology Hyderabad, Kandi 502 285, Sangareddy, Telangana, India
| | | | - Duddu S. Sharada
- Department
of Chemistry, Indian Institute of Technology Hyderabad, Kandi 502 285, Sangareddy, Telangana, India
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28
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Ma H, Zhang X, Chen L, Yu W. A Domino Azidation/C–H Amination Approach toward Trifluoromethyl Substituted Imidazoles. J Org Chem 2017; 82:11841-11847. [DOI: 10.1021/acs.joc.7b01361] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Haichao Ma
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Xiaoyan Zhang
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Liangliang Chen
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Wei Yu
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, China
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29
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Han X, Lei T, Yang XL, Zhao LM, Chen B, Tung CH, Wu LZ. Aerobic oxidation of β-dicarbonyls into vicinal tricarbonyls by Cu(II) salts for one-pot synthesis of quinoxalines. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.03.071] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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30
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Sayyad M, Wani IA, Tiwari DP, Ghorai MK. Synthetic Routes to Isomeric Imidazoindoles by Regioselective Ring‐Opening of Activated Aziridines Followed by Copper‐Catalysed C–N Cyclization. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700267] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Masthanvali Sayyad
- Department of Chemistry Indian Institute of Technology Kanpur 208016 Kanpur Uttar Pradesh India
| | - Imtiyaz Ahmad Wani
- Department of Chemistry Indian Institute of Technology Kanpur 208016 Kanpur Uttar Pradesh India
| | - Deo Prakash Tiwari
- Department of Chemistry Indian Institute of Technology Kanpur 208016 Kanpur Uttar Pradesh India
| | - Manas K. Ghorai
- Department of Chemistry Indian Institute of Technology Kanpur 208016 Kanpur Uttar Pradesh India
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31
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Jiao YX, Wu LL, Zhu HM, Qin JK, Pan CX, Mo DL, Su GF. Tandem C–N Bond Formation through Condensation and Metal-Free N-Arylation: Protocol for Synthesizing Diverse Functionalized Quinoxalines. J Org Chem 2017; 82:4407-4414. [DOI: 10.1021/acs.joc.7b00011] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Yan-Xiao Jiao
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China; School of Chemistry & Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
| | - Ling-Ling Wu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China; School of Chemistry & Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
| | - Hai-Miao Zhu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China; School of Chemistry & Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
| | - Jiang-Ke Qin
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China; School of Chemistry & Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
| | - Cheng-Xue Pan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China; School of Chemistry & Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
| | - Dong-Liang Mo
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China; School of Chemistry & Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
| | - Gui-Fa Su
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China; School of Chemistry & Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
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32
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Abstract
The azide moiety is a desirable functionality in organic molecules, useful in a variety of transformations such as olefin aziridination, C-H bond amination, isocyanate synthesis, the Staudinger reaction and the formation of azo compounds. To harness the versatility of the azide functionality fully it is important that these compounds be easy to prepare, in a clean and cost-effective manner. Conventional (non-catalysed) methods to synthesise azides generally require quite harsh reaction conditions that are often not tolerant of functional groups. In the last decade, several metal-catalysed azidations have been developed in attempts to circumvent this problem. These methods are generally faster, cleaner and more functional-group-tolerant than conventional methods to prepare azides, and can sometimes even be conveniently combined with one-pot follow-up transformations of the installed azide moiety. This review highlights metal-catalysed approaches to azide synthesis, with a focus on the substrate scopes and mechanisms, as well as on advantages and disadvantages of the methods. Overall, metal-catalysed azidation reactions provide shorter routes to a variety of potentially useful organic molecules containing the azide moiety.
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Affiliation(s)
- Monalisa Goswami
- Van 't Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Bas de Bruin
- Van 't Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
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33
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Gopalaiah K, Saini A, Chandrudu SN, Rao DC, Yadav H, Kumar B. Copper-catalyzed aerobic oxidative coupling of o-phenylenediamines with 2-aryl/heteroarylethylamines: direct access to construct quinoxalines. Org Biomol Chem 2017; 15:2259-2268. [DOI: 10.1039/c7ob00122c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A versatile method for synthesis of quinoxalines by Cu-catalyzed oxidative coupling of o-phenylenediamines with 2-arylethylamines is presented.
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Affiliation(s)
- Kovuru Gopalaiah
- Organic Synthesis and Catalysis Laboratory
- Department of Chemistry
- University of Delhi
- Delhi 110007
- India
| | - Anupama Saini
- Organic Synthesis and Catalysis Laboratory
- Department of Chemistry
- University of Delhi
- Delhi 110007
- India
| | - Sankala Naga Chandrudu
- Organic Synthesis and Catalysis Laboratory
- Department of Chemistry
- University of Delhi
- Delhi 110007
- India
| | - Devarapalli Chenna Rao
- Organic Synthesis and Catalysis Laboratory
- Department of Chemistry
- University of Delhi
- Delhi 110007
- India
| | - Harsh Yadav
- Crystal Lab
- Department of Physics & Astrophysics
- University of Delhi
- Delhi 110007
- India
| | - Binay Kumar
- Crystal Lab
- Department of Physics & Astrophysics
- University of Delhi
- Delhi 110007
- India
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34
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Li Y, Cao X, Liu Y, Wan JP. Regioselective three-component synthesis of 2,3-disubstituted quinolines via the enaminone modified Povarov reaction. Org Biomol Chem 2017; 15:9585-9589. [DOI: 10.1039/c7ob02411h] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The enaminone modified three-component Povarov reactions enable the regioselective synthesis of 2,3-disubstituted quinolines.
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Affiliation(s)
- Yi Li
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P.R. China
| | - Xiaoji Cao
- Research Center of Analysis and Measurement
- Zhejiang University of Technology
- Hangzhou
- P. R. China
| | - Yunyun Liu
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P.R. China
| | - Jie-Ping Wan
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P.R. China
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35
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Yang T, Wang W, Wei D, Zhang T, Han B, Yu W. Synthesis of quinazolinones via radical cyclization of α-azidyl benzamides. Org Chem Front 2017. [DOI: 10.1039/c6qo00656f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Under visible light irradiation with N-bromosuccinimide, α-azidyl benzamides can be transformed into quinazolinones in high efficiency via cascade radical processes.
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Affiliation(s)
- Tonghao Yang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
- China
| | - Weixia Wang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
- China
| | - Dian Wei
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
- China
| | - Tianqi Zhang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
- China
| | - Bing Han
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
- China
| | - Wei Yu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
- China
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36
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Shinde AH, Arepally S, Baravkar MD, Sharada DS. Nickel-Catalyzed Aerobic Oxidative Isocyanide Insertion: Access to Benzimidazoquinazoline Derivatives via a Sequential Double Annulation Cascade (SDAC) Strategy. J Org Chem 2016; 82:331-342. [DOI: 10.1021/acs.joc.6b02423] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Anand H. Shinde
- Department of Chemistry, Indian Institute of Technology Hyderabad (IITH), Kandi, Sangareddy 502
285, Telangana, India
| | - Sagar Arepally
- Department of Chemistry, Indian Institute of Technology Hyderabad (IITH), Kandi, Sangareddy 502
285, Telangana, India
| | - Mayur D. Baravkar
- Department of Chemistry, Indian Institute of Technology Hyderabad (IITH), Kandi, Sangareddy 502
285, Telangana, India
| | - Duddu S. Sharada
- Department of Chemistry, Indian Institute of Technology Hyderabad (IITH), Kandi, Sangareddy 502
285, Telangana, India
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37
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Pal S, Choudhary D, Jainth M, Kumar S, Tiwari RK, Verma AK. Regio- and Stereoselective Domino Synthesis of Oxazolo Fused Pyridoindoles and Benzofurooxazolo Pyridines from ortho-Alkynylarylaldehydes. J Org Chem 2016; 81:9356-9371. [DOI: 10.1021/acs.joc.6b02062] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Shilpi Pal
- Synthetic
Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Deepak Choudhary
- Synthetic
Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Mohit Jainth
- Synthetic
Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Sonu Kumar
- Synthetic
Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Rakesh K. Tiwari
- Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, 9401
Jeronimo Road, Irvine, California 92618, United States
| | - Akhilesh K. Verma
- Synthetic
Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
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38
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Guo T, Jiang Q, Yu Z. Copper-Catalyzed Ring-Expansion/ThiolactonizationviaAzidation of Internal Olefinic C-H Bond under Mild Conditions. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600675] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Tenglong Guo
- Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457 Zhongshan Road Dalian, Liaoning 116023 People's Republic of China
| | - Quanbin Jiang
- Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457 Zhongshan Road Dalian, Liaoning 116023 People's Republic of China
| | - Zhengkun Yu
- Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457 Zhongshan Road Dalian, Liaoning 116023 People's Republic of China
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 354 Fenglin Road Shanghai 200032 People's Republic of China
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39
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Lauriers AJD, Legault CY. Enol and Ynol Surrogates: Promising Substrates for Hypervalent Iodine Chemistry. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600246] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
| | - Claude Y. Legault
- Department of Chemistry; Université de Sherbrooke; Sherbrooke Québec J1K 2R1 Canada
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40
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Chen T, Chen X, Wei J, Lin D, Xie Y, Zeng W. Copper-Catalyzed Cascade Cycloamination of α-Csp3–H Bond of N-Aryl Ketimines with Azides: Access to Quinoxalines. Org Lett 2016; 18:2078-81. [DOI: 10.1021/acs.orglett.6b00709] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Tengfei Chen
- School of Chemistry
and Chemical
Engineering, South China University of Technology, Guangzhou 510641, China
| | - Xun Chen
- School of Chemistry
and Chemical
Engineering, South China University of Technology, Guangzhou 510641, China
| | - Jun Wei
- School of Chemistry
and Chemical
Engineering, South China University of Technology, Guangzhou 510641, China
| | - Dongen Lin
- School of Chemistry
and Chemical
Engineering, South China University of Technology, Guangzhou 510641, China
| | - Ying Xie
- School of Chemistry
and Chemical
Engineering, South China University of Technology, Guangzhou 510641, China
| | - Wei Zeng
- School of Chemistry
and Chemical
Engineering, South China University of Technology, Guangzhou 510641, China
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41
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Wang X, Jiao N. Rh- and Cu-Cocatalyzed Aerobic Oxidative Approach to Quinazolines via [4 + 2] C–H Annulation with Alkyl Azides. Org Lett 2016; 18:2150-3. [DOI: 10.1021/acs.orglett.6b00774] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaoyang Wang
- State
Key Laboratory of Natural and Biomimetic Drugs, Peking University, Xue
Yuan Road 38, Beijing 100191, China
| | - Ning Jiao
- State
Key Laboratory of Natural and Biomimetic Drugs, Peking University, Xue
Yuan Road 38, Beijing 100191, China
- State
Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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42
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Guntreddi T, Vanjari R, Kumar S, Singh R, Singh N, Kumar P, Singh KN. Elemental sulfur mediated synthesis of benzoxazoles, benzothiazoles and quinoxalines via decarboxylative coupling of 2-hydroxy/mercapto/amino-anilines with cinnamic acids. RSC Adv 2016. [DOI: 10.1039/c6ra17491d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
A practical method has been developed for the synthesis of 2-benzylbenzoxazoles and 2-benzylbenzothiazoles using sulfur mediated decarboxylative coupling of cinnamic acids with 2-hydroxyanilines and 2-mercaptoanilines respectively.
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Affiliation(s)
- Tirumaleswararao Guntreddi
- Department of Chemistry (Centre of Advanced Study)
- Institute of Science
- Banaras Hindu University
- Varanasi 221005
- India
| | - Rajeshwer Vanjari
- Department of Chemistry (Centre of Advanced Study)
- Institute of Science
- Banaras Hindu University
- Varanasi 221005
- India
| | - Saurabh Kumar
- Department of Chemistry (Centre of Advanced Study)
- Institute of Science
- Banaras Hindu University
- Varanasi 221005
- India
| | - Rahul Singh
- Department of Chemistry (Centre of Advanced Study)
- Institute of Science
- Banaras Hindu University
- Varanasi 221005
- India
| | - Neetu Singh
- Department of Chemistry (Centre of Advanced Study)
- Institute of Science
- Banaras Hindu University
- Varanasi 221005
- India
| | - Promod Kumar
- Department of Chemistry (Centre of Advanced Study)
- Institute of Science
- Banaras Hindu University
- Varanasi 221005
- India
| | - Krishna Nand Singh
- Department of Chemistry (Centre of Advanced Study)
- Institute of Science
- Banaras Hindu University
- Varanasi 221005
- India
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43
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Sagar A, Vidaycharan S, Shinde AH, Sharada DS. Hypervalent iodine(iii)-promoted N-incorporation into N-aryl vinylogous carbamates to quinoxaline diesters: access to 1,4,5,8-tetraazaphenanthrene. Org Biomol Chem 2016; 14:4018-22. [DOI: 10.1039/c6ob00447d] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An oxidative N-incorporation strategy for synthesis of quinoxaline diesters under metal-free and mild reaction conditions is described via the formation of two C(sp2)–N bonds utilizing NaN3 as the cheap N-atom source.
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Affiliation(s)
- A. Sagar
- Department of Chemistry
- Indian Institute of Technology Hyderabad
- Sangareddy
- India
| | - Shinde Vidaycharan
- Department of Chemistry
- Indian Institute of Technology Hyderabad
- Sangareddy
- India
| | - Anand H. Shinde
- Department of Chemistry
- Indian Institute of Technology Hyderabad
- Sangareddy
- India
| | - Duddu S. Sharada
- Department of Chemistry
- Indian Institute of Technology Hyderabad
- Sangareddy
- India
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44
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Shinde MH, Kshirsagar UA. A copper catalyzed multicomponent cascade redox reaction for the synthesis of quinazolinones. RSC Adv 2016. [DOI: 10.1039/c6ra10997g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
A copper catalyzed multicomponent cascade redox reaction for the synthesis of various quinazolinones starting from easily available 2-bromobenzamides, benzylic alcohols and sodium azide as a nitrogen source has been developed.
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Affiliation(s)
- Mahesh H. Shinde
- Department of Chemistry Savitribai Phule Pune University (Formerly: University of Pune)
- Pune-411007
- India
| | - Umesh A. Kshirsagar
- Department of Chemistry Savitribai Phule Pune University (Formerly: University of Pune)
- Pune-411007
- India
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