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Huang S, Jin L, Liu Y, Yang G, Wang A, Le Z, Jiang G, Xie Z. Visible light-mediated synthesis of quinazolinones from benzyl bromides and 2-aminobenzamides without using any photocatalyst or additive. Org Biomol Chem 2024; 22:784-789. [PMID: 38168690 DOI: 10.1039/d3ob01491f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
This paper reports a novel method for the visible-light-mediated synthesis of quinazolinones from the reaction of benzyl bromides with 2-aminobenzamides. The reaction proceeded efficiently at room temperature upon irradiation with an 18 W blue light-emitting diode in air without photocatalysts or additives. By varying the solvent type, substrate molar ratio, and reaction time, the optimal reaction conditions, including the use of methanol solvent, room temperature, and reaction time of 28 h, were identified. Under these conditions, various quinazolinones were obtained using 18 substrates, with the highest yield of 93%. To determine the industrial value of the proposed method, a scale-up reaction was performed and 80% product yield was achieved. Mechanistic studies revealed that the reaction likely proceeded via a radical pathway and that the hydrogen bromide by-product generated during the first step of the reaction of benzyl bromide with 2-aminobenzamide promoted the subsequent step.
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Affiliation(s)
- Sheng Huang
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Liang Jin
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Yufeng Liu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Guoping Yang
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Aixin Wang
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Zhanggao Le
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Guofang Jiang
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Zongbo Xie
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
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2
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Moutaouakil M, Roby O, Tighadouini S, Cherif A, El Aatiaoui A, Saddik R. Investigating catalytic pathways: a comparative review of homogeneous and heterogeneous catalysis for 3-aroylimidazo[1,2-a]pyridine synthesis. Mol Divers 2023:10.1007/s11030-023-10765-w. [PMID: 38042761 DOI: 10.1007/s11030-023-10765-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 11/03/2023] [Indexed: 12/04/2023]
Abstract
3-aroylimidazo[1,2-a]pyridines represent a class of derivatives in the imidazo[1,2-a]pyridine family known for their important biological and pharmaceutical activities. Consequently, various methodologies have been designed to simplify the synthesis of this structure, with an emphasis on the use of cost-effective starting materials and environmentally friendly protocols. All the methods developed in recent years (from 2016 to 2023) rely on homogeneous or heterogeneous catalysts. Therefore, we aim to perform a comparative analysis between these two approaches, elucidating their respective advantages and limitations. The first part of this work focuses on techniques employing homogeneous catalysts, followed by the next section devoted to heterogeneous catalysts. This comprehensive review should be of substantial interest to researchers in the fields of organic and medicinal chemistry, as it provides a valuable resource for their research.
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Affiliation(s)
- Mohamed Moutaouakil
- Laboratory of Organic Synthesis, Extraction, and Valorization, Faculty of Sciences Ain Chock, Hassan II University, 20000, Casablanca, Morocco.
| | - Othmane Roby
- Laboratory of Organic Synthesis, Extraction, and Valorization, Faculty of Sciences Ain Chock, Hassan II University, 20000, Casablanca, Morocco
| | - Said Tighadouini
- Laboratory of Organic Synthesis, Extraction, and Valorization, Faculty of Sciences Ain Chock, Hassan II University, 20000, Casablanca, Morocco
| | - Abdelmjid Cherif
- Laboratory of Materials Engineering for Environment and Valorization, Faculty of Sciences Ain Chock, Hassan II University, 20000, Casablanca, Morocco
| | - Abdelmalik El Aatiaoui
- Laboratory of Molecular Chemistry, Materials and Environment (LCM2E), Department of Chemistry, Multidisciplinary Faculty of Nador, Mohamed I University, Nador, Morocco
| | - Rafik Saddik
- Laboratory of Organic Synthesis, Extraction, and Valorization, Faculty of Sciences Ain Chock, Hassan II University, 20000, Casablanca, Morocco
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3
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Takeda A, Okai H, Watabe K, Iida H. Metal-Free Atom-Economical Synthesis of Tetra-Substituted Imidazoles via Flavin-Iodine Catalyzed Aerobic Cross-Dehydrogenative Coupling of Amidines and Chalcones. J Org Chem 2022; 87:10372-10376. [PMID: 35839306 DOI: 10.1021/acs.joc.2c00596] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Herein, we demonstrated the oxidative cross-dehydrogenative coupling between amidines and chalcones catalyzed by flavin and iodine. The riboflavin-iodine catalytic system played multiple roles in substrate- and O2-activation, enabling the facile and atom-economical synthesis of tetra-substituted imidazoles in good yields (60-87%). This metal-free reaction consumed only 1 equiv of molecular oxygen and generated 2 equiv of environmentally benign H2O as the only byproduct.
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Affiliation(s)
- Aki Takeda
- Department of Chemistry, Graduate School of Natural Science and Technology, Shimane University, 1060 Nishikawatsu, Matsue, Shimane 690-8504, Japan
| | - Hayaki Okai
- Department of Chemistry, Graduate School of Natural Science and Technology, Shimane University, 1060 Nishikawatsu, Matsue, Shimane 690-8504, Japan
| | - Kyoji Watabe
- Department of Chemistry, Graduate School of Natural Science and Technology, Shimane University, 1060 Nishikawatsu, Matsue, Shimane 690-8504, Japan
| | - Hiroki Iida
- Department of Chemistry, Graduate School of Natural Science and Technology, Shimane University, 1060 Nishikawatsu, Matsue, Shimane 690-8504, Japan
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4
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Kumbhar VV, Khairnar BB, Chaskar MG, Pawar RA, Gugale GS. Synthetic strategies in development of 3-aroylimidazo[1,2-a]pyridines and 2-aroylimidazo[1,2-a]pyridines: A decade update. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2056057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Vikrant V. Kumbhar
- Department of Chemistry, PDEA’s Prof. Ramkrishna More College, Pune, India
- Interdisciplinary School of Science (IDSS), Savitribai Phule Pune University, Pune, India
| | - Bhushan B. Khairnar
- Department of Chemistry, PDEA’s Prof. Ramkrishna More College, Pune, India
- Interdisciplinary School of Science (IDSS), Savitribai Phule Pune University, Pune, India
| | - Manohar G. Chaskar
- Department of Chemistry, PDEA’s Prof. Ramkrishna More College, Pune, India
| | - Ramdas A. Pawar
- Department of Chemistry, PDEA’s Prof. Ramkrishna More College, Pune, India
| | - Gulab S. Gugale
- Department of Chemistry, PDEA’s Prof. Ramkrishna More College, Pune, India
- Department of Chemistry, Haribhai V. Desai College, Pune, India
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5
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Mu Y, Iqbal Z, Jiang R, Hou J, Yang Z, Li H, Tang D. Synthesis of Fused pyrazolo[4,3‐
c
]quinolines through KI‐Promoted Cyclization of Pyrazole‐arylamines and Benzyl Bromide. ChemistrySelect 2022. [DOI: 10.1002/slct.202104337] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Yangxiu Mu
- Ningxia Center of Agricultural Organic Synthesis Agricultural Resource and Environment Institute of Ningxia Academy of Agriculture and Forestry Science Yinchuan 750002 P. R. China
| | - Zafar Iqbal
- Ningxia Center of Agricultural Organic Synthesis Agricultural Resource and Environment Institute of Ningxia Academy of Agriculture and Forestry Science Yinchuan 750002 P. R. China
| | - Rui Jiang
- Ningxia Center of Agricultural Organic Synthesis Agricultural Resource and Environment Institute of Ningxia Academy of Agriculture and Forestry Science Yinchuan 750002 P. R. China
| | - Jing Hou
- Ningxia Center of Agricultural Organic Synthesis Agricultural Resource and Environment Institute of Ningxia Academy of Agriculture and Forestry Science Yinchuan 750002 P. R. China
| | - Zhixiang Yang
- Ningxia Center of Agricultural Organic Synthesis Agricultural Resource and Environment Institute of Ningxia Academy of Agriculture and Forestry Science Yinchuan 750002 P. R. China
| | - Hongjun Li
- National Measurement and Testing Center for Coal Chemical industry Ningxia Academy of Metrology & Quality Inspection Yinchuan 750002 P. R. China
| | - Dong Tang
- Ningxia Center of Agricultural Organic Synthesis Agricultural Resource and Environment Institute of Ningxia Academy of Agriculture and Forestry Science Yinchuan 750002 P. R. China
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6
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Zhao M, Yang Z, Yang D. Recent Progress in Synthesis of Polysubstituted Imidazoles by Cyclization Reaction. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202107014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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7
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Guchhait SK, Saini M, Khivsara VJ, Giri SK. Annulation of Conjugated Azine-Imine with a Sulfoxonium Ylide in a Noncarbenoid Route to Synthesize Multisubstituted Imidazole-Fused Heterocycles. J Org Chem 2021; 86:5380-5387. [PMID: 33759525 DOI: 10.1021/acs.joc.1c00052] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A new [4+1]-annulation of in situ generated heterocyclic azine-aldimines with β-keto sulfoxonium ylides has been developed. The reaction constructs N-fused imidazole rings. In the reaction, the ylides play a dual-functional role of a nucleophilic 1,1-dipolar one-carbon synthon and a source of an internal oxidant, dimethyl sulfoxide, that promotes in situ dehydrogenation to product scaffolds. The method enables access to imidazo-pyridine, pyrazine, and pyrimidine heteroaromatics.
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Affiliation(s)
- Sankar K Guchhait
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, SAS Nagar, Mohali, Punjab 160062, India
| | - Meenu Saini
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, SAS Nagar, Mohali, Punjab 160062, India
| | - Viren J Khivsara
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, SAS Nagar, Mohali, Punjab 160062, India
| | - Santosh K Giri
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, SAS Nagar, Mohali, Punjab 160062, India
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8
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Imtiaz S, Ahmad War J, Banoo S, Khan S. α-Aminoazoles/azines: key reaction partners for multicomponent reactions. RSC Adv 2021; 11:11083-11165. [PMID: 35423648 PMCID: PMC8695948 DOI: 10.1039/d1ra00392e] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 02/23/2021] [Indexed: 12/28/2022] Open
Abstract
Aromatic α-aminoazaheterocycles are the focus of significant investigations and exploration by researchers owing to their key role in diverse biological and physiological processes. The existence of their derivatives in numerous drugs and alkaloids is due to their heterocyclic nitrogenous nature. Therefore, the synthesis of a structurally diverse range of their derivatives through simple and convenient methods represents a vital field of synthetic organic chemistry. Multicomponent reactions (MCRs) provide a platform to introduce desirable structure diversity and complexity into a molecule in a single operation with a significant reduction in the use of harmful organic waste, and hence have attracted particular attention as an excellent tool to access these derivatives. This review covers the advances made from 2010 to the beginning of 2020 in terms of the utilization of α-aminoazaheterocycles as synthetic precursors in MCRs.
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Affiliation(s)
- Shah Imtiaz
- Department of Chemistry, Aligarh Muslim University Aligarh India-202002
| | - Jahangir Ahmad War
- Department of Chemistry, National Institute of Technology Kashmir India-190006
| | - Syqa Banoo
- Department of Chemistry, Mangalayatan University Beswan Aligarh India-202146
| | - Sarfaraz Khan
- Department of Chemistry, Aligarh Muslim University Aligarh India-202002
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Chen Q, Chen S, Wu H, Zeng X, Chen W, Sun G, Wang Z. Application of 2-Aminopyridines in the Synthesis of Five- and Six-Membered Azaheterocycles. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202104011] [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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10
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Fairoosa J, Neetha M, Anilkumar G. Recent developments and perspectives in the copper-catalyzed multicomponent synthesis of heterocycles. RSC Adv 2021; 11:3452-3469. [PMID: 35424324 PMCID: PMC8694354 DOI: 10.1039/d0ra10472h] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 01/08/2021] [Indexed: 12/11/2022] Open
Abstract
Heterocyclic compounds have become an inevitable part of organic chemistry due to their ubiquitous presence in bioactive compounds. Copper-catalyzed multicomponent synthesis of heterocycles has developed as the most convenient and facile synthetic route towards complex heterocyclic motifs. In this review, we discuss the advancements in the field of copper-catalyzed multicomponent reactions for the preparation of heterocycles since 2018. Heterocycles are abundant in several pharmaceutical and naturally occurring compounds. Copper-catalyzed multicomponent reactions are a convenient method for easy access to heterocycles. In this review, we focus on the advancement in this field for the past two years.![]()
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Affiliation(s)
- Jaleel Fairoosa
- School of Chemical Sciences
- Mahatma Gandhi University
- Kottayam
- India
| | - Mohan Neetha
- School of Chemical Sciences
- Mahatma Gandhi University
- Kottayam
- India
| | - Gopinathan Anilkumar
- School of Chemical Sciences
- Mahatma Gandhi University
- Kottayam
- India
- Advanced Molecular Materials Research Centre (AMMRC)
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11
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John SE, Gulati S, Shankaraiah N. Recent advances in multi-component reactions and their mechanistic insights: a triennium review. Org Chem Front 2021. [DOI: 10.1039/d0qo01480j] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This review summarizes the recent developments in MCRs, incorporating different strategies along with their mechanistic aspects.
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Affiliation(s)
- Stephy Elza John
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research (NIPER)
- Hyderabad – 500 037
- India
| | - Shivani Gulati
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research (NIPER)
- Hyderabad – 500 037
- India
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research (NIPER)
- Hyderabad – 500 037
- India
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Saliyeva LN, Diachenko IV, Vas’kevich RI, Slyvka NY, Vovk MV. Imidazothiazoles and their Hydrogenated Analogs: Methods of Synthesis and Biomedical Potential. Chem Heterocycl Compd (N Y) 2020. [DOI: 10.1007/s10593-020-02827-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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13
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Yang Z, Zhan Y, Qiu Z, Zeng J, Guo J, Hu S, Zhao Z, Li X, Ji S, Huo Y, Su SJ. Stimuli-Responsive Aggregation-Induced Delayed Fluorescence Emitters Featuring the Asymmetric D-A Structure with a Novel Diarylketone Acceptor Toward Efficient OLEDs with Negligible Efficiency Roll-Off. ACS APPLIED MATERIALS & INTERFACES 2020; 12:29528-29539. [PMID: 32508095 DOI: 10.1021/acsami.0c07612] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Multifunctional luminescent materials with aggregation-induced delayed fluorescence (AIDF) are capable of suppressing concentration-caused emission quenching and exciton annihilation when used as organic light-emitting diode (OLED) emitters. In this contribution, three stimuli-responsive AIDF luminogens, pipd-BZ-PXZ, pipd-BZ-PTZ, and pipd-BZ-DMAC, featuring a D-A asymmetric framework based on a fused N-heterocycle diarylketone acceptor (imid-azo[1,2-a]pyridin-2-yl(phenyl)methanone pipd) are designed and synthesized. Interestingly, pipd-BZ-PTZ forms two different kinds of crystals (G-crystal and O-crystal) with distinct intermolecular interactions between pipd moieties. The G-crystal with a looser packing mode presents significant morphology-dependent stimuli-responsive behavior with a shifted emission wavelength of 56 nm. Generated by a strong intramolecular charge transfer effect, pipd-BZ-PXZ and pipd-BZ-PTZ exhibit orange to red emission in solution and neat films. Both nondoped and doped devices are fabricated for comparison. Nondoped devices present moderate performance with external quantum efficiencies and current efficiency that reach 7.04% and 19.86 cd A-1, respectively, and the corresponding efficiency roll off at 1000 cd m-2 is as small as 2.3%, which is among the best records of AIDF-OLEDs with an emission wavelength over 570 nm. Doped devices show better performance with corresponding efficiencies of up to 55.41 cd A-1 and 15.77%.
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Affiliation(s)
- Zhiwen Yang
- School of Chemical Engineering & Light Industry, Guangdong University of Technology, 510006 Guangzhou, China
| | - Yingying Zhan
- School of Chemical Engineering & Light Industry, Guangdong University of Technology, 510006 Guangzhou, China
| | - Zhipeng Qiu
- School of Chemical Engineering & Light Industry, Guangdong University of Technology, 510006 Guangzhou, China
| | - Jiajie Zeng
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, 510640 Guangzhou, China
| | - Jingjing Guo
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, 510640 Guangzhou, China
| | - Sheng Hu
- School of Chemical Engineering & Light Industry, Guangdong University of Technology, 510006 Guangzhou, China
| | - Zujin Zhao
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, 510640 Guangzhou, China
| | - Xianwei Li
- School of Chemical Engineering & Light Industry, Guangdong University of Technology, 510006 Guangzhou, China
| | - Shaomin Ji
- School of Chemical Engineering & Light Industry, Guangdong University of Technology, 510006 Guangzhou, China
| | - Yanping Huo
- School of Chemical Engineering & Light Industry, Guangdong University of Technology, 510006 Guangzhou, China
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, 510640 Guangzhou, China
| | - Shi-Jian Su
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, 510640 Guangzhou, China
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Bhutia Z, Das D, Chatterjee A, Banerjee M. Efficient and "Green" Synthetic Route to Imidazo[1,2- a]pyridine by Cu(II)-Ascorbate-Catalyzed A 3-Coupling in Aqueous Micellar Media. ACS OMEGA 2019; 4:4481-4490. [PMID: 31459643 PMCID: PMC6647986 DOI: 10.1021/acsomega.8b03581] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 02/19/2019] [Indexed: 05/26/2023]
Abstract
An efficient and environmentally sustainable method for the synthesis of imidazo[1,2-a]pyridine derivatives by domino A3-coupling reaction catalyzed by Cu(II)-ascorbate was developed in aqueous micellar media in the presence of sodium dodecyl sulfate (SDS). The catalyst, a dynamic combination of Cu(II)/Cu(I), was generated in situ in the reaction mixture by mixing CuSO4 with sodium ascorbate and aided a facile 5-exo-dig cycloisomerization of alkynes with the condensation products of 2-aminopyridines and aldehydes to afford a variety of imidazo[1,2-a]pyridines in good overall yields. A simple experimental setup, water as the "green" medium, and inexpensive catalyst and auxiliary are some of the merits of this protocol.
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Affiliation(s)
| | | | | | - Mainak Banerjee
- E-mail: . Phone: +91-832-2580-347. Fax: +91-832-255-7031 (M.B.)
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