1
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Gola AK, Kumar N, Pandey SK. I 2-Promoted Chemoselective Annulative Coupling of 2-Aminobenzamides with Sulfoxonium Ylides: Easy Access to Quinazolinones. J Org Chem 2024; 89:12410-12420. [PMID: 39160687 DOI: 10.1021/acs.joc.4c01354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/21/2024]
Abstract
A flexible and metal-free synthetic approach for synthesizing 2-benzoyl quinazolinones and 2-aryl quinazolinones via molecular iodine-mediated annulative coupling of sulfoxonium ylides with 2-aminobenzamides has been disclosed. The method demonstrates remarkable chemoselectivity and efficiency, leading to high yields of 2-benzoyl quinazolinones and 2-aryl quinazolinones under optimized conditions. The broad substrate scope, scalability, and practical utility were highlighted through diverse applications, including gram-scale reactions and the synthesis of biologically significant compounds such as tryptanthrin and the chemo/biosensor derivative.
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Affiliation(s)
- Ajay Kant Gola
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, India
| | - Naveen Kumar
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, India
| | - Satyendra Kumar Pandey
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, India
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2
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Lv X, Lv L, Li S, Ding C, Yang B, Ma C. A Direct Method for Synthesis of Quinoxalines and Quinazolinones Using Epoxides as Alkyl Precursor. Molecules 2023; 28:7391. [PMID: 37959810 PMCID: PMC10648482 DOI: 10.3390/molecules28217391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023] Open
Abstract
An iodine-mediated one-pot synthesis of pyrrolo/indolo [1,2-a]quinoxalines and quinazolin-4-one via utilizing epoxides as alkyl precursors under metal-free conditions has been described. Both 1-(2-aminophenyl)-pyrrole and 2-aminobenzamide could be applied to this protocol. A total of 33 desired products were obtained with moderate to good yields. This methodology was suitable for wide-scale preparation and the obtained products could be further modified into promising pharmaceutically active reagents.
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Affiliation(s)
- Xueyan Lv
- Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China; (X.L.); (S.L.); (C.D.)
| | - Lili Lv
- China Petroleum Planning and Engineering Institute, Dongying 257237, China;
| | - Shichen Li
- Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China; (X.L.); (S.L.); (C.D.)
| | - Chengcheng Ding
- Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China; (X.L.); (S.L.); (C.D.)
| | - Bingchuan Yang
- College of Chemistry and Chemical Engineering, Qilu Normal University, Jinan 250013, China
| | - Chen Ma
- Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China; (X.L.); (S.L.); (C.D.)
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3
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Wu W, Fan S, Wu X, Fang L, Zhu J. Cobalt Homeostatic Catalysis for Coupling of Enaminones and Oxadiazolones to Quinazolinones. J Org Chem 2023; 88:1945-1962. [PMID: 36705660 DOI: 10.1021/acs.joc.2c01934] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Transition metal catalysis has revolutionized modern synthetic chemistry for its diverse modes of coordination reactivity. However, this versatility in reactivity is also the predominant cause of catalyst deactivation, a persisting issue that can significantly compromise its synthetic value. Homeostatic catalysis, a catalytic process that can sustain its productive catalytic cycle even when chemically disturbed, is proposed herein as an effective tactic to address the challenge. In particular, a cobalt homeostatic catalysis process has been developed for the water-tolerant coupling of enaminones and oxadiazolones to quinazolinones. Dynamic covalent bonding serves as a mechanistic handle for the preferred buffering of water onto enaminone and reverse exchange by a released secondary amine, thus securing reversible entry into cobalt's dormant and active states for productive catalysis. Through this homeostatic catalysis mode, a broad structural scope has been achieved for quinazolinones, enabling further elaboration into distinct pharmaceutically active agents.
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Affiliation(s)
- Weiping Wu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210023, China
| | - Shuaixin Fan
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210023, China
| | - Xuan Wu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210023, China
| | - Lili Fang
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210023, China
| | - Jin Zhu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210023, China
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4
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A new facet of amide synthesis by tandem acceptorless dehydrogenation of amines and oxygen transfer of DMSO. J Catal 2023. [DOI: 10.1016/j.jcat.2022.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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5
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Yu X, Ma Z, Zhu W, Liu H, Zhang Z, Liu Y, Zhang M, Zhao J, Zhang P, Xia C. Tandem Reduction, Ammonolysis, Condensation, and Deamination Reaction for Synthesis of Benzothiadiazines and 1-(Phenylsulfonyl)-1 H-benzimidazoles. J Org Chem 2022; 87:14738-14752. [PMID: 36269195 DOI: 10.1021/acs.joc.2c02071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A novel route for a SnCl2-promoted tandem reduction, ammonolysis, condensation, and deamination reaction which uses nitrile and 2-nitro-N-phenylbenzenesulfonamide/N-(2-nitrophenyl)benzenesulfonamide to synthesize derivatives of benzothiadiazine/1-(phenylsulfonyl)-1H-benzimidazole has been developed. The method features convenient operation and good functional group tolerance. In addition, it employs unsensitive and inexpensive SnCl2/i-PrOH as the reaction reagent and provides a direct approach for the synthesis of pharmaceutically important targets.
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Affiliation(s)
- Xiao Yu
- Institute of Pharmacology, Pharmacy College, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an 271016, China
| | - Zhihong Ma
- Biotalk Co., Ltd., Shanghai 200092, China
| | - Wenjing Zhu
- Institute of Pharmacology, Pharmacy College, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an 271016, China
| | - Hongyan Liu
- Institute of Pharmacology, Pharmacy College, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an 271016, China
| | - Zenghui Zhang
- Institute of Pharmacology, Pharmacy College, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an 271016, China
| | - Yi Liu
- Institute of Pharmacology, Pharmacy College, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an 271016, China
| | - Mei Zhang
- Institute of Pharmacology, Pharmacy College, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an 271016, China
| | - Jinbo Zhao
- Institute of Pharmacology, Pharmacy College, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an 271016, China
| | - Pengfei Zhang
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou 311121, China
| | - Chengcai Xia
- Institute of Pharmacology, Pharmacy College, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an 271016, China
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6
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Sathyendran S, Senadi GC. An Umpolung Route to Amides from α‐Aminonitriles under Metal‐Free Conditions. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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7
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Ghafuri H, Rashidizadeh A, Gorab MG, Jafari G. Copper(II)-β-cyclodextrin immobilized on graphitic carbon nitride nanosheets as a highly effective catalyst for tandem oxidative amidation of benzylic alcohols. Sci Rep 2022; 12:2331. [PMID: 35149698 PMCID: PMC8837611 DOI: 10.1038/s41598-022-05363-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 01/11/2022] [Indexed: 11/09/2022] Open
Abstract
In this study, an efficient catalyst based on graphitic carbon nitride nanosheets (CN) and copper(II) supported β-cyclodextrin (β-CD/Cu(II)) was synthesized and used for tandem oxidative amidation of benzylic alcohols. In this regard, CN was functionalized by β-CD/Cu(II) via 1,3-dibromopropane linker (CN-Pr-β-CD/Cu(II)). The prepared catalyst was characterized using FT-IR, XRD, FE-SEM, EDS, TGA, ICP-OES, BET, and TEM analyses. CN-Pr-β-CD/Cu(II) was subsequently applied in a direct oxidative amidation reaction and it was observed that different benzyl alcohols were converted to desire amides with good to excellent efficiency. This reaction was performed in the presence of amine hydrochloride salts, tert-butyl hydroperoxide (TBHP), and Ca2CO3 in acetonitrile (CH3CN) under nitrogen atmosphere. CN-Pr-β-CD/Cu(II) can be recycled and reused five times without significant reduction in reaction efficiency.
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Affiliation(s)
- Hossein Ghafuri
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, 16846-13114, Tehran, Iran.
| | - Afsaneh Rashidizadeh
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, 16846-13114, Tehran, Iran
| | - Mostafa Ghafori Gorab
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, 16846-13114, Tehran, Iran
| | - Ghazaleh Jafari
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, 16846-13114, Tehran, Iran
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8
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Wen S, Du Y, Liu Y, Cui X, Liu Q, Zhou H. Access to 2‐Arylquinazolin‐4(3H)‐ones through Intramolecular Oxidative C(sp
3
)−H/N−H Cross‐Coupling Mediated by I
2
/DMSO. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Simiaomiao Wen
- Research Center of Green Pharmaceutical Technology and Process Hubei Key Laboratory of Natural Products Research and Development College of Biological and Pharmaceutical Sciences China Three Gorges University 443002 Yichang China
| | - Yifan Du
- Research Center of Green Pharmaceutical Technology and Process Hubei Key Laboratory of Natural Products Research and Development College of Biological and Pharmaceutical Sciences China Three Gorges University 443002 Yichang China
| | - Yiwen Liu
- Wufeng Chicheng Biotech Co., Ltd. 443413 Yichang China
| | - Xiaofeng Cui
- Research Center of Green Pharmaceutical Technology and Process Hubei Key Laboratory of Natural Products Research and Development College of Biological and Pharmaceutical Sciences China Three Gorges University 443002 Yichang China
| | - Qixing Liu
- Research Center of Green Pharmaceutical Technology and Process Hubei Key Laboratory of Natural Products Research and Development College of Biological and Pharmaceutical Sciences China Three Gorges University 443002 Yichang China
| | - Haifeng Zhou
- Research Center of Green Pharmaceutical Technology and Process Hubei Key Laboratory of Natural Products Research and Development College of Biological and Pharmaceutical Sciences China Three Gorges University 443002 Yichang China
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9
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Neerathilingam N, Bhargava Reddy M, Anandhan R. Regioselective Synthesis of 2° Amides Using Visible-Light-Induced Photoredox-Catalyzed Nonaqueous Oxidative C-N Cleavage of N, N-Dibenzylanilines. J Org Chem 2021; 86:15117-15127. [PMID: 34619960 DOI: 10.1021/acs.joc.1c01792] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A visible-light-driven photoredox-catalyzed nonaqueous oxidative C-N cleavage of N,N-dibenzylanilines to 2° amides is reported. Further, we have applied this protocol on 2-(dibenzylamino)benzamide to afford quinazolinones with (NH4)2S2O8 as an additive. Mechanistic studies imply that the reaction might undergo in situ generation of α-amino radical to imine by C-N bond cleavage followed by the addition of superoxide ion to form amides.
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Affiliation(s)
| | | | - Ramasamy Anandhan
- Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai 600 025, India
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10
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Yang K, Liu M, Zhang Y, Zhan J, Deng L, Zheng X, Zhou Y, Wang Z. Progress in the Synthesis of Benzoheterocycles from 2-Halobenzamides. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202101044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Sinha S, Das S, Mondal R, Mandal S, Paul ND. Cobalt complexes of redox noninnocent azo-aromatic pincers. Isolation, characterization, and application as catalysts for the synthesis of quinazolin-4(3H)-ones. Dalton Trans 2020; 49:8448-8459. [PMID: 32239054 DOI: 10.1039/d0dt00394h] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein we report the synthesis, characterization and catalytic application of three new cobalt(ii)-complexes of redox noninnocent arylazo ligands, 2-(phenylazo)-1,10-phenanthroline (L1a), 2-(4-chlorophenylazo)-1,10-phenanthroline (L1b) and 2,9-bis(phenyldiazo)-1,10-phenanthroline (L2) respectively. The reaction of L1a with CoIICl2·6H2O produced a μ-dichloro bridged binuclear cobalt(ii)-complex [Co(L1a)2Cl2] (1a) while the same reaction when carried out with 2-(4-chlorophenyl)azo-1,10-phenanthroline (L1b) and 2,9-bis(phenyldiazo)-1,10-phenanthroline (L2) ligands produced two new mononuclear five-coordinate cobalt(ii)-complexes 1b and 2 respectively. In complex 1a and 1b, the ligands L1a and L1b are coordinated to the cobalt(ii)-center in a tridentate mode utilizing all of its nitrogen donor sites while in complex 2 one of the azo-donor sites of the ligand L2 remain pendant. All these complexes were characterized using available spectroscopic techniques and DFT studies. We further explored the potential of these complexes as catalysts for the synthesis of pharmaceutically important organic compounds via the functionalization of alcohols. A variety of substituted quinazolin-4(3H)-ones were synthesized under aerobic conditions via the coupling of alcohols and 2-aminobenzamide using 1b as the catalyst. Mechanistic investigations revealed that both cobalt and the arylazo scaffold act synergistically during catalysis.
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Affiliation(s)
- Suman Sinha
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India.
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12
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Yang H, Xu J, Zhang Y, He L, Zhang P, Li W. Synthesis of quinazoin-4-ones through an acid ion exchange resin mediated cascade reaction. Org Biomol Chem 2020; 18:4406-4414. [PMID: 32459237 DOI: 10.1039/d0ob00881h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
An interesting cascade reaction of N-(2-(4,5-dihydrooxazol-2-yl)phenyl)benzamide in the presence of an acid ion exchange resin is described. In this reaction, a range of substrates bearing various substituent groups are well compatible. This work provides a green and atom-economical alternative approach for the synthesis of quinazolin-4-ones in good yields.
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Affiliation(s)
- Huiyong Yang
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China.
| | - Jun Xu
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China.
| | - Yilan Zhang
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China.
| | - Lei He
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China.
| | - Pengfei Zhang
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China.
| | - Wanmei Li
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China.
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13
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Fakhree AA, Mohammadzadeh R, Alipour E, Ghasemi Z. Synthesis of new polyaryl-substituted imidazoles bridged on enamine or urea moieties and evaluation of their optical and electrochemical properties. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04078-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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Chatterjee S, Srinath R, Bera S, Khamaru K, Rahman A, Banerji B. Cu-Catalyzed Direct Diversification of 2-(2-Bromophenyl)quinazolin-4(3H)-ones through Orthogonal Reactivity Modulation. Org Lett 2019; 21:9028-9032. [DOI: 10.1021/acs.orglett.9b03428] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Satadru Chatterjee
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Raja S. C. Mullick Road, Kolkata-700032, India
| | - Ravuri Srinath
- National Institute of Pharmaceutical Education and Research (NIPER-Kolkata), Chunilal Bhawan, Maniktala, Kolkata-700054, India
| | - Suvankar Bera
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Raja S. C. Mullick Road, Kolkata-700032, India
| | - Krishnendu Khamaru
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Raja S. C. Mullick Road, Kolkata-700032, India
| | - Afifa Rahman
- National Institute of Pharmaceutical Education and Research (NIPER-Kolkata), Chunilal Bhawan, Maniktala, Kolkata-700054, India
| | - Biswadip Banerji
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Raja S. C. Mullick Road, Kolkata-700032, India
- Academy of Scientific and Innovative Research (AcSIR), (CSIR-IICB), 4 Raja S. C. Mullick Road, Kolkata-700032, India
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15
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Gupta S, Ansari A, Sashidhara KV. Base promoted peroxide systems for the efficient synthesis of nitroarenes and benzamides. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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Mao S, Luo K, Wang L, Zhao HY, Shergalis A, Xin M, Neamati N, Jin Y, Zhang SQ. Metal-Free C-2-H Alkylation of Quinazolin-4-ones with Alkanes via Cross-Dehydrogenative Coupling. Org Lett 2019; 21:2365-2368. [DOI: 10.1021/acs.orglett.9b00638] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Shuai Mao
- Department of Medicinal Chemistry, School of Pharmacy, Xi’an Jiaotong University, Xi’an 710061, China
- Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Kaixiu Luo
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Lu Wang
- Department of Medicinal Chemistry, School of Pharmacy, Xi’an Jiaotong University, Xi’an 710061, China
| | - Hong-Yi Zhao
- Department of Medicinal Chemistry, School of Pharmacy, Xi’an Jiaotong University, Xi’an 710061, China
| | - Andrea Shergalis
- Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Minhang Xin
- Department of Medicinal Chemistry, School of Pharmacy, Xi’an Jiaotong University, Xi’an 710061, China
| | - Nouri Neamati
- Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Yi Jin
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - San-Qi Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Xi’an Jiaotong University, Xi’an 710061, China
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17
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Sharma R, Sofi FA, Rana P, Bharatam PV. Bimetallic Cu–Mn B spinel oxide catalyzed oxidative synthesis of 1,2-disubstituted benzimidazoles from benzyl bromides. NEW J CHEM 2019. [DOI: 10.1039/c8nj05504a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Cu–Mn B (a heterogeneous catalyst) catalyzed synthesis of 1-benzyl-2-phenyl-1H-benzo[d]imidazoles is reported.
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Affiliation(s)
- Rohit Sharma
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research
- Mohali-160062
- India
| | - Firdoos Ahmad Sofi
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research
- Mohali-160062
- India
| | - Preeti Rana
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research
- Mohali-160062
- India
| | - Prasad V. Bharatam
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research
- Mohali-160062
- India
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18
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An J, Wang Y, Zhang Z, Zhao Z, Zhang J, Wang F. The Synthesis of Quinazolinones from Olefins, CO, and Amines over a Heterogeneous Ru-clusters/Ceria Catalyst. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806266] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jinghua An
- State Key Laboratory of Catalysis (SKLC); Dalian National Laboratory for Clean Energy (DNL); Dalian Institute of Chemical Physics (DICP); Chinese Academy of Sciences; Dalian 116023 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Yehong Wang
- State Key Laboratory of Catalysis (SKLC); Dalian National Laboratory for Clean Energy (DNL); Dalian Institute of Chemical Physics (DICP); Chinese Academy of Sciences; Dalian 116023 China
| | - Zhixin Zhang
- State Key Laboratory of Catalysis (SKLC); Dalian National Laboratory for Clean Energy (DNL); Dalian Institute of Chemical Physics (DICP); Chinese Academy of Sciences; Dalian 116023 China
| | - Zhitong Zhao
- State Key Laboratory of Catalysis (SKLC); Dalian National Laboratory for Clean Energy (DNL); Dalian Institute of Chemical Physics (DICP); Chinese Academy of Sciences; Dalian 116023 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Jian Zhang
- State Key Laboratory of Catalysis (SKLC); Dalian National Laboratory for Clean Energy (DNL); Dalian Institute of Chemical Physics (DICP); Chinese Academy of Sciences; Dalian 116023 China
| | - Feng Wang
- State Key Laboratory of Catalysis (SKLC); Dalian National Laboratory for Clean Energy (DNL); Dalian Institute of Chemical Physics (DICP); Chinese Academy of Sciences; Dalian 116023 China
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19
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An J, Wang Y, Zhang Z, Zhao Z, Zhang J, Wang F. The Synthesis of Quinazolinones from Olefins, CO, and Amines over a Heterogeneous Ru-clusters/Ceria Catalyst. Angew Chem Int Ed Engl 2018; 57:12308-12312. [DOI: 10.1002/anie.201806266] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 07/14/2018] [Indexed: 02/02/2023]
Affiliation(s)
- Jinghua An
- State Key Laboratory of Catalysis (SKLC); Dalian National Laboratory for Clean Energy (DNL); Dalian Institute of Chemical Physics (DICP); Chinese Academy of Sciences; Dalian 116023 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Yehong Wang
- State Key Laboratory of Catalysis (SKLC); Dalian National Laboratory for Clean Energy (DNL); Dalian Institute of Chemical Physics (DICP); Chinese Academy of Sciences; Dalian 116023 China
| | - Zhixin Zhang
- State Key Laboratory of Catalysis (SKLC); Dalian National Laboratory for Clean Energy (DNL); Dalian Institute of Chemical Physics (DICP); Chinese Academy of Sciences; Dalian 116023 China
| | - Zhitong Zhao
- State Key Laboratory of Catalysis (SKLC); Dalian National Laboratory for Clean Energy (DNL); Dalian Institute of Chemical Physics (DICP); Chinese Academy of Sciences; Dalian 116023 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Jian Zhang
- State Key Laboratory of Catalysis (SKLC); Dalian National Laboratory for Clean Energy (DNL); Dalian Institute of Chemical Physics (DICP); Chinese Academy of Sciences; Dalian 116023 China
| | - Feng Wang
- State Key Laboratory of Catalysis (SKLC); Dalian National Laboratory for Clean Energy (DNL); Dalian Institute of Chemical Physics (DICP); Chinese Academy of Sciences; Dalian 116023 China
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20
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Hu H, Cai X, Xu Z, Yan X, Zhao S. Beckmann Rearrangement of Ketoxime Catalyzed by N-methyl-imidazolium Hydrosulfate. Molecules 2018; 23:molecules23071764. [PMID: 30021992 PMCID: PMC6100402 DOI: 10.3390/molecules23071764] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 07/03/2018] [Accepted: 07/14/2018] [Indexed: 11/21/2022] Open
Abstract
Beckmann rearrangement of ketoxime catalyzed by acidic ionic liquid-N-methyl-imidazolium hydrosulfate was studied. Rearrangement of benzophenone oxime gave the desirable product with 45% yield at 90 °C. When co-catalyst P2O5 was added, the yield could be improved to 91%. The catalyst could be reused three cycles with the same efficiency. Finally, reactions of other ketoximes were also investigated.
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Affiliation(s)
- Hongyu Hu
- Xingzhi College, Zhejiang Normal University, Jinhua 321004, China.
| | - Xuting Cai
- Xingzhi College, Zhejiang Normal University, Jinhua 321004, China.
| | - Zhuying Xu
- Xingzhi College, Zhejiang Normal University, Jinhua 321004, China.
| | - Xiaoyang Yan
- Xingzhi College, Zhejiang Normal University, Jinhua 321004, China.
| | - Shengxian Zhao
- Xingzhi College, Zhejiang Normal University, Jinhua 321004, China.
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21
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Sharma R, Abdullaha M, Bharate SB. Oxidant-Controlled C-sp 2/sp 3-H Cross-Dehydrogenative Coupling of N-Heterocycles with Benzylamines. J Org Chem 2017; 82:9786-9793. [PMID: 28820259 DOI: 10.1021/acs.joc.7b00856] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Oxidant controlled ionic liquid mediated cross-dehydrogenative coupling (CDC) of benzylamines with N-heterocycles having sp2 or sp3 carbon resulted in the formation of C-benzoylated or alkenylated products. Benzoylation of N-heterocycles occurs via (NH4)2S2O8 catalyzed benzoyl radical formation. An oxidative alkenylation of N-heterocycles having C-sp3 carbon (2-methylaza-arenes) occurs via deamination of benzylamine followed by C-sp3-H bond activation in high stereoselectivity. Both benzoylation and alkenylation protocols are metal-free, green, simple, efficient, and tolerate a wide variety of functional groups.
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Affiliation(s)
- Rohit Sharma
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine , Canal Road, Jammu-180001, India.,Academy of Scientific & Innovative Research, CSIR-Indian Institute of Integrative Medicine , Canal Road, Jammu-180001, India
| | - Mohd Abdullaha
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine , Canal Road, Jammu-180001, India.,Academy of Scientific & Innovative Research, CSIR-Indian Institute of Integrative Medicine , Canal Road, Jammu-180001, India
| | - Sandip B Bharate
- Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine , Canal Road, Jammu-180001, India.,Academy of Scientific & Innovative Research, CSIR-Indian Institute of Integrative Medicine , Canal Road, Jammu-180001, India
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22
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Liu X, Xu W, Zeng MT, Liu M, Chang CZ, Zhu H, Dong ZB. Base-promoted synthesis of N-arylbenzamides by N-benzoylation of dimethylphenylthioureas. JOURNAL OF CHEMICAL RESEARCH 2017. [DOI: 10.3184/174751917x15016635672213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
An efficient synthesis of 10 N-arylbenzamides was achieved by N-benzoylation of N,N-dimethyl-( N′-phenyl)thioureas with 4-substituted benzoyl chlorides in dimethylacetamide in the presence of K2CO3. The features of this method include good yields, short reaction times and broad substrate scope. This work showed that arylthiourea derivatives can be alternative and useful starting materials for the preparation of N-arylbenzamides.
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Affiliation(s)
- Xing Liu
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, P.R. China
| | - Wan Xu
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, P.R. China
| | - Meng-Tian Zeng
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, P.R. China
| | - Min Liu
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, P.R. China
| | - Cai-Zhu Chang
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, P.R. China
| | - Hui Zhu
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, P.R. China
| | - Zhi-Bing Dong
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, P.R. China
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23
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Parua S, Das S, Sikari R, Sinha S, Paul ND. One-Pot Cascade Synthesis of Quinazolin-4(3H)-ones via Nickel-Catalyzed Dehydrogenative Coupling of o-Aminobenzamides with Alcohols. J Org Chem 2017; 82:7165-7175. [DOI: 10.1021/acs.joc.7b00643] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Seuli Parua
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur (IIESTS), Botanic Garden, Howrah 711103, India
| | - Siuli Das
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur (IIESTS), Botanic Garden, Howrah 711103, India
| | - Rina Sikari
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur (IIESTS), Botanic Garden, Howrah 711103, India
| | - Suman Sinha
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur (IIESTS), Botanic Garden, Howrah 711103, India
| | - Nanda D. Paul
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur (IIESTS), Botanic Garden, Howrah 711103, India
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24
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Sharma R, Abdullaha M, Bharate SB. Metal-Free Ionic-Liquid-Mediated Synthesis of Benzimidazoles and Quinazolin-4(3H
)-ones from Benzylamines. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700214] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Rohit Sharma
- Medicinal Chemistry Division; Academy of Scientific&Innovative Research (AcSIR); CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu- 180001 India
| | - Mohd. Abdullaha
- Medicinal Chemistry Division; Academy of Scientific&Innovative Research (AcSIR); CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu- 180001 India
| | - Sandip B. Bharate
- Medicinal Chemistry Division; Academy of Scientific&Innovative Research (AcSIR); CSIR-Indian Institute of Integrative Medicine; Canal Road Jammu- 180001 India
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25
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Sharma R, Vishwakarma RA, Bharate SB. Bimetallic Cu-Mn-Catalyzed Synthesis of 2-Arylquinazolin-4(3H)-ones: Aqueous Ammonia as Source of a Ring Nitrogen Atom. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601024] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Rohit Sharma
- Medicinal Chemistry Division; Academy of Scientific & Innovative Research (AcSIR); CSIR - Indian Institute of Integrative Medicine; Canal Road 180001 Jammu India
| | - Ram A. Vishwakarma
- Medicinal Chemistry Division; Academy of Scientific & Innovative Research (AcSIR); CSIR - Indian Institute of Integrative Medicine; Canal Road 180001 Jammu India
| | - Sandip B. Bharate
- Medicinal Chemistry Division; Academy of Scientific & Innovative Research (AcSIR); CSIR - Indian Institute of Integrative Medicine; Canal Road 180001 Jammu India
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