1
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Tiwari G, Khanna A, Mishra VK, Sagar R. Recent developments on microwave-assisted organic synthesis of nitrogen- and oxygen-containing preferred heterocyclic scaffolds. RSC Adv 2023; 13:32858-32892. [PMID: 37942237 PMCID: PMC10628940 DOI: 10.1039/d3ra05986c] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 10/25/2023] [Indexed: 11/10/2023] Open
Abstract
In recent decades, the utilization of microwave energy has experienced an extraordinary surge, leading to the introduction of innovative and revolutionary applications across various fields of chemistry such as medicinal chemistry, materials science, organic synthesis and heterocyclic chemistry. Herein, we provide a comprehensive literature review on the microwave-assisted organic synthesis of selected heterocycles. We highlight the use of microwave irradiation as an effective method for constructing a diverse range of molecules with high yield and selectivity. We also emphasize the impact of microwave irradiation on the efficient synthesis of N- and O-containing heterocycles that possess bioactive properties, such as anti-cancer, anti-proliferative, and anti-tumor activities. Specific attention is given to the efficient synthesis of pyrazolopyrimidines-, coumarin-, quinoline-, and isatin-based scaffolds, which have been extensively studied for their potential in drug discovery. The article provides valuable insights into the recent synthetic protocols and trends for the development of new drugs using heterocyclic molecules.
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Affiliation(s)
- Ghanshyam Tiwari
- Department of Chemistry, Institute of Science, Banaras Hindu University Varanasi 221005 India
| | - Ashish Khanna
- Department of Chemistry, Institute of Science, Banaras Hindu University Varanasi 221005 India
| | - Vinay Kumar Mishra
- Department of Chemistry, Institute of Science, Banaras Hindu University Varanasi 221005 India
| | - Ram Sagar
- Department of Chemistry, Institute of Science, Banaras Hindu University Varanasi 221005 India
- Glycochemistry Laboratory, School of Physical Sciences, Jawaharlal Nehru University New Delhi 110067 India
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2
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Frecentese F, Sodano F, Corvino A, Schiano ME, Magli E, Albrizio S, Sparaco R, Andreozzi G, Nieddu M, Rimoli MG. The Application of Microwaves, Ultrasounds, and Their Combination in the Synthesis of Nitrogen-Containing Bicyclic Heterocycles. Int J Mol Sci 2023; 24:10722. [PMID: 37445897 DOI: 10.3390/ijms241310722] [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: 06/05/2023] [Revised: 06/20/2023] [Accepted: 06/24/2023] [Indexed: 07/15/2023] Open
Abstract
The use of alternative energy sources, such as microwaves (MW) or ultrasounds (US), and their mutual cross-combination have been widely described in the literature in the development of new synthetic methodologies in organic and medicinal chemistry. In this review, our attention is focused on representative examples, reported in the literature in the year range 2013-2023 of selected N-containing bicyclic heterocycles, with the aim to highlight the advantages of microwave- and ultrasound-assisted organic synthesis.
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Affiliation(s)
| | - Federica Sodano
- Department of Pharmacy, "Federico II" University of Naples, 80131 Naples, Italy
| | - Angela Corvino
- Department of Pharmacy, "Federico II" University of Naples, 80131 Naples, Italy
| | | | - Elisa Magli
- Department of Pharmacy, "Federico II" University of Naples, 80131 Naples, Italy
| | - Stefania Albrizio
- Department of Pharmacy, "Federico II" University of Naples, 80131 Naples, Italy
| | - Rosa Sparaco
- Department of Pharmacy, "Federico II" University of Naples, 80131 Naples, Italy
| | - Giorgia Andreozzi
- Department of Pharmacy, "Federico II" University of Naples, 80131 Naples, Italy
| | - Maria Nieddu
- Department of Medicine, Surgery and Pharmacy, University of Sassari, 07100 Sassari, Italy
| | - Maria Grazia Rimoli
- Department of Pharmacy, "Federico II" University of Naples, 80131 Naples, Italy
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3
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Qian C, Wang Y, Li X, Yao C. Electrocatalytic Multicomponent Transformation of Aldehyde, 5‐Amino‐3‐methyl‐1‐phenylpyrazole and Dimedone: An Efficient Protocol for Substituted Pyrazolo[3,4‐
b
]quinolines. ChemistrySelect 2023. [DOI: 10.1002/slct.202203332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Affiliation(s)
- Cunwei Qian
- School of Chemical & Environmental Engineering Yancheng Teachers College Yancheng 224007 P. R. China
| | - Ying Wang
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Xian Li
- School of Chemical & Environmental Engineering Yancheng Teachers College Yancheng 224007 P. R. China
| | - Changsheng Yao
- School of Chemistry and Materials Science Jiangsu Normal University Xuzhou 221116 P. R. China
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4
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Apparao B, Robert AR, Kumar MMK, Madaka RK, Muralidhar P, Maddila S, Jonnalagadda SB. Design of novel 2-amino-pyrans via a green and facile one-pot multicomponent protocol using RuO2/Al2O3 as reusable catalyst. RESEARCH ON CHEMICAL INTERMEDIATES 2023. [DOI: 10.1007/s11164-022-04949-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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5
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Kumar KS, Robert AR, Kerru N, Maddila S. A novel, swift, and effective green synthesis of morpholino-pyridine analogues in microwave irradiation conditions. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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6
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Yadav P, Bhalla A. Recent Advances in Green Synthesis of Functionalized Quinolines of Medicinal Impact (2018‐Present). ChemistrySelect 2022. [DOI: 10.1002/slct.202201721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Pooja Yadav
- Department of Chemistry and Centre of Advanced Studies in Chemistry Panjab University Chandigarh 160014 India
| | - Aman Bhalla
- Department of Chemistry and Centre of Advanced Studies in Chemistry Panjab University Chandigarh 160014 India
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7
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Rostami N, Dekamin MG, Valiey E, FaniMoghadam H. l-Asparagine-EDTA-amide silica-coated MNPs: a highly efficient and nano-ordered multifunctional core-shell organocatalyst for green synthesis of 3,4-dihydropyrimidin-2(1 H)-one compounds. RSC Adv 2022; 12:21742-21759. [PMID: 36091190 PMCID: PMC9386691 DOI: 10.1039/d2ra02935a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 07/03/2022] [Indexed: 02/02/2023] Open
Abstract
In this study, new l-asparagine grafted on 3-aminopropyl-modified Fe3O4@SiO2 core-shell magnetic nanoparticles using the EDTA linker (Fe3O4@SiO2-APTS-EDTA-asparagine) was prepared and its structures properly confirmed using different spectroscopic, microscopic and magnetic methods or techniques including FT-IR, EDX, XRD, FESEM, TEM, TGA and VSM. The Fe3O4@SiO2-APTS-EDTA-asparagine core-shell nanomaterial was found, as a highly efficient multifunctional and recoverable organocatalyst, to promote the efficient synthesis of a wide range of biologically-active 3,4-dihydropyrimidin-2(1H)-one derivatives under solvent-free conditions. It was proved that Fe3O4@SiO2-APTS-EDTA-asparagine MNPs, as a catalyst having excellent thermal and magnetic stability, specific morphology and acidic sites with appropriate geometry, can activate the Biginelli reaction components. Moreover, the environmental-friendliness and nontoxic nature of the catalyst, cost effectiveness, low catalyst loading, easy separation of the catalyst from the reaction mixture and short reaction time are some of the remarkable advantages of this green protocol.
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Affiliation(s)
- Negin Rostami
- Pharmaceutical and Biologically-Active Compounds Research Laboratory, Department of Chemistry, Iran University of Science and Technology Tehran 16846-13114 Iran +98-21-7730 21584 +98-21-77 240 284
| | - Mohammad G Dekamin
- Pharmaceutical and Biologically-Active Compounds Research Laboratory, Department of Chemistry, Iran University of Science and Technology Tehran 16846-13114 Iran +98-21-7730 21584 +98-21-77 240 284
| | - Ehsan Valiey
- Pharmaceutical and Biologically-Active Compounds Research Laboratory, Department of Chemistry, Iran University of Science and Technology Tehran 16846-13114 Iran +98-21-7730 21584 +98-21-77 240 284
| | - Hamidreza FaniMoghadam
- Pharmaceutical and Biologically-Active Compounds Research Laboratory, Department of Chemistry, Iran University of Science and Technology Tehran 16846-13114 Iran +98-21-7730 21584 +98-21-77 240 284
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8
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Maddila S, Devi L, Muralidhar P, Nagaraju K, Jonnalagadda SB. A facile and environmental-friendly protocol for the synthesis of methyleneisoxazole-5(4H)-ones catalyzed by CeO2/TiO2 under ultrasonic irradiation. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Marques CS, Carreiro EP, Teixeira APS. Multicomponent Synthesis of Heterocycles. HETEROCYCLES 2022. [DOI: 10.1002/9783527832002.ch7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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10
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Danel A, Gondek E, Kucharek M, Szlachcic P, Gut A. 1 H-Pyrazolo[3,4- b]quinolines: Synthesis and Properties over 100 Years of Research. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27092775. [PMID: 35566124 PMCID: PMC9099536 DOI: 10.3390/molecules27092775] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/13/2022] [Accepted: 04/22/2022] [Indexed: 12/12/2022]
Abstract
This paper summarises a little over 100 years of research on the synthesis and the photophysical and biological properties of 1H-pyrazolo[3,4-b]quinolines that was published in the years 1911–2021. The main methods of synthesis are described, which include Friedländer condensation, synthesis from anthranilic acid derivatives, multicomponent synthesis and others. The use of this class of compounds as potential fluorescent sensors and biologically active compounds is shown. This review intends to summarize the abovementioned aspects of 1H-pyrazolo[3,4-b]quinoline chemistry. Some of the results that are presented in this publication come from the laboratories of the authors of this review.
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Affiliation(s)
- Andrzej Danel
- Faculty of Materials Engineering and Physics, Cracow University of Technology, Podchorążych Str. 1, 30-084 Krakow, Poland;
- Correspondence:
| | - Ewa Gondek
- Faculty of Materials Engineering and Physics, Cracow University of Technology, Podchorążych Str. 1, 30-084 Krakow, Poland;
| | - Mateusz Kucharek
- Faculty of Food Technology, University of Agriculture in Krakow, Balicka Str. 122, 30-149 Krakow, Poland; (M.K.); (P.S.)
| | - Paweł Szlachcic
- Faculty of Food Technology, University of Agriculture in Krakow, Balicka Str. 122, 30-149 Krakow, Poland; (M.K.); (P.S.)
| | - Arkadiusz Gut
- Faculty of Chemistry, Jagiellonian University, Gronostajowa Str. 2, 30-387 Krakow, Poland;
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11
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Goswami M, Dutta A, Paul P, Nongkhlaw R. Recent Developments on Catalyst‐Free, Visible‐Light‐Triggered Synthesis of Heterocyclic Scaffolds and Their Mechanistic Study. ChemistrySelect 2021. [DOI: 10.1002/slct.202102696] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Munmee Goswami
- Centre for Advanced Studies in Chemistry Department of Chemistry North-Eastern Hill University Shillong 793022 INDIA
| | - Arup Dutta
- Centre for Advanced Studies in Chemistry Department of Chemistry North-Eastern Hill University Shillong 793022 INDIA
| | - Pooja Paul
- Centre for Advanced Studies in Chemistry Department of Chemistry North-Eastern Hill University Shillong 793022 INDIA
| | - Rishanlang Nongkhlaw
- Centre for Advanced Studies in Chemistry Department of Chemistry North-Eastern Hill University Shillong 793022 INDIA
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12
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Gulati S, John SE, Shankaraiah N. Microwave-assisted multicomponent reactions in heterocyclic chemistry and mechanistic aspects. Beilstein J Org Chem 2021; 17:819-865. [PMID: 33968258 PMCID: PMC8077743 DOI: 10.3762/bjoc.17.71] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 04/01/2021] [Indexed: 12/13/2022] Open
Abstract
Microwave-assisted (MWA) multicomponent reactions (MCRs) have successfully emerged as one of the useful tools in the synthesis of biologically relevant heterocycles. These reactions are strategically employed for the generation of a variety of heterocycles along with multiple point diversifications. Over the last few decades classical MCRs such as Ugi, Biginelli, etc. have witnessed enhanced yield and efficiency with microwave assistance. The highlights of MWA-MCRs are high yields, reduced reaction time, selectivity, atom economy and simpler purification techniques, such an approach can accelerate the drug discovery process. The present review focuses on the recent advances in MWA-MCRs and their mechanistic insights over the past decade and shed light on its advantage over the conventional approach.
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Affiliation(s)
- Shivani Gulati
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Stephy Elza John
- 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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13
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Lalitha A, Vinoth N, Vadivel P. Expedient Synthesis and Antibacterial Activity of Tetrahydro-1′H-spiro[indoline-3,4′-quinoline]-3′-carbonitrile Derivatives Using Piperidine as Catalyst. Synlett 2021. [DOI: 10.1055/s-0040-1706682] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
AbstractA convenient synthesis of 2′-amino-7′,7′-dimethyl-2,5′-dioxo-1′-(phenylamino)-5′,6′,7′,8′-tetrahydro-1′H-spiro[indoline-3,4′-quinoline]-3′-carbonitrile derivatives has been designed using different substituted isatins, various 5,5-dimethyl-3-(2-phenylhydrazinyl)cyclohex-2-enones (arylhydrazones of dimedone) and malononitrile in ethanol with piperidine as catalyst at room temperature. The structures of the synthesized compounds have been elucidated by various spectroscopic techniques. The selected compounds have also been evaluated for their antibacterial activities against human pathogenic bacteria.
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14
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Kerru N, Maddila S, Jonnalagadda SB. A Facile and Catalyst-Free Microwave-Promoted Multicomponent Reaction for the Synthesis of Functionalised 1,4-Dihydropyridines With Superb Selectivity and Yields. Front Chem 2021; 9:638832. [PMID: 33869142 PMCID: PMC8044462 DOI: 10.3389/fchem.2021.638832] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 03/10/2021] [Indexed: 11/16/2022] Open
Abstract
We report a highly efficient green protocol for developing a novel library of 1,2,4-triazole-tagged 1,4-dihydropyridine analogs through the one-pot process from the four-component fusion of the 1H-1,2,4-triazol-3-amine with different chosen aldehydes, diethyl acetylenedicarboxylate, and active methylene compounds in a water medium under microwave irradiation and catalyst-free conditions. Excellent yields (94-97%) of the target products were achieved with high selectivity with a short reaction time (<12 min) at room temperature. The structures of the synthesized pyrimidine analogs were established by NMR and HRMS spectroscopic analysis. Simple workup, impressive yields, no column chromatography, green solvent, rapid reaction, and excellent functional group tolerance are the benefits of this protocol.
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Affiliation(s)
- Nagaraju Kerru
- Department of Chemistry, GITAM School of Science, Gandhi Institute of Technology and Management (GITAM) University, Bengaluru, India
- School of Chemistry and Physics, University of KwaZulu-Natal, Durban, South Africa
| | - Suresh Maddila
- School of Chemistry and Physics, University of KwaZulu-Natal, Durban, South Africa
- Department of Chemistry, GITAM Institute of Sciences, Gandhi Institute of Technology and Management (GITAM) University, Visakhapatnam, India
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15
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Kerru N, Gummidi L, Maddila S, Jonnalagadda SB. Efficient synthesis of novel functionalized dihydro‑pyrazolo[3,4-d]pyridines via the three-component reaction using MgO/HAp as a sustainable catalyst. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2020.108321] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Kerru N, Gummidi L, Maddila S, Jonnalagadda SB. Polyethylene glycol (PEG‐400) Mediated One‐pot Green Synthesis of 4,7‐Dihydro‐2
H
‐pyrazolo[3,4‐
b
]pyridines Under Catalyst‐free Conditions. ChemistrySelect 2020. [DOI: 10.1002/slct.202002538] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Nagaraju Kerru
- School of Chemistry & Physics University of KwaZulu-Natal Westville Campus, Chiltern Hills Private Bag 54001 Durban-4000 South Africa
| | - Lalitha Gummidi
- School of Chemistry & Physics University of KwaZulu-Natal Westville Campus, Chiltern Hills Private Bag 54001 Durban-4000 South Africa
| | - Suresh Maddila
- School of Chemistry & Physics University of KwaZulu-Natal Westville Campus, Chiltern Hills Private Bag 54001 Durban-4000 South Africa
| | - Sreekantha B. Jonnalagadda
- School of Chemistry & Physics University of KwaZulu-Natal Westville Campus, Chiltern Hills Private Bag 54001 Durban-4000 South Africa
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17
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Banerjee B, Kaur G. Microwave Assisted Catalyst-free Synthesis of Bioactive Heterocycles. CURRENT MICROWAVE CHEMISTRY 2020. [DOI: 10.2174/2213335607666200226102010] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
This review deals with the recent advances on the microwave-assisted synthesis of bioactive heterocycles without using any catalyst under various reaction conditions. Synthesis of various biologically promising N-heterocycles, O-heterocycles, S-heterocycles, N as well as O- or S-heterocycles reported so far under catalyst-free microwave-irradiated conditions are discussed in this review.
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Affiliation(s)
- Bubun Banerjee
- Department of Chemistry, Indus International University, V.P.O. Bathu, Distt. Una, Himachal Pradesh 174301, India
| | - Gurpreet Kaur
- Department of Chemistry, Indus International University, V.P.O. Bathu, Distt. Una, Himachal Pradesh 174301, India
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18
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Harikrishna S, Robert AR, Ganja H, Maddila S, Jonnalagadda SB. A green, efficient and recoverable CeO
2
/MWCNT nanocomposite catalyzed click synthesis of pyridine‐3‐carboxamides. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5796] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Singamsetty Harikrishna
- Department of Chemistry, GITAM Institute of SciencesGITAM University Visakhapatnam Andhra Pradesh India
| | - Alice R. Robert
- Department of Chemistry, GITAM Institute of SciencesGITAM University Visakhapatnam Andhra Pradesh India
| | - Himavathi Ganja
- Department of Chemistry, GITAM Institute of SciencesGITAM University Visakhapatnam Andhra Pradesh India
| | - Suresh Maddila
- Department of Chemistry, GITAM Institute of SciencesGITAM University Visakhapatnam Andhra Pradesh India
- School of Chemistry & PhysicsUniversity of KwaZulu‐Natal, Westville Campus Durban Chiltern Hills 4000 South Africa
| | - Sreekantha B. Jonnalagadda
- School of Chemistry & PhysicsUniversity of KwaZulu‐Natal, Westville Campus Durban Chiltern Hills 4000 South Africa
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19
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Fairoosa J, Saranya S, Radhika S, Anilkumar G. Recent Advances in Microwave Assisted Multicomponent Reactions. ChemistrySelect 2020. [DOI: 10.1002/slct.202000683] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jaleel Fairoosa
- School of Chemical SciencesMahatma Gandhi University Priyadarsini Hills P O Kerala 686 560 INDIA
| | - Salim Saranya
- School of Chemical SciencesMahatma Gandhi University Priyadarsini Hills P O Kerala 686 560 INDIA
| | - Sankaran Radhika
- School of Chemical SciencesMahatma Gandhi University Priyadarsini Hills P O Kerala 686 560 INDIA
| | - Gopinathan Anilkumar
- School of Chemical SciencesMahatma Gandhi University Priyadarsini Hills P O Kerala 686 560 INDIA
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20
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Vinoth N, Kalaiarasi C, Kumaradhas P, Vadivel P, Lalitha A. Synthesis and Antibacterial Activity of New N‐Substituted Hexahydroquinolinone Derivatives and X‐Ray Crystallographic Studies. ChemistrySelect 2020. [DOI: 10.1002/slct.201904565] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
| | | | | | - Pullar Vadivel
- Department of ChemistrySalem Sowdeswari College Salem- 636010 Tamilnadu India
| | - Appaswami Lalitha
- Department of ChemistryPeriyar University Salem- 636011 Tamilnadu India
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21
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Praveena G, Yagnam S, Banoth L, Trivedi R, Prakasham RS. Bacterial biosynthesis of nanosilver: a green catalyst for the synthesis of (amino pyrazolo)-(phenyl)methyl naphth-2-ol derivatives and their antimicrobial potential. NEW J CHEM 2020. [DOI: 10.1039/d0nj01924k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Heterogeneous silver nanoparticles produced by Streptomyces sp. RAB 10, were used as bio-catalysts in a three-component reaction in aqueous media.
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Affiliation(s)
- Ganji Praveena
- Organic Synthesis and Process Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- Academy of Scientific and Innovative Research
| | - Swetha Yagnam
- Academy of Scientific and Innovative Research
- AcSIR CSIR-IICT Campus
- Hyderabad
- India
- Catalysis and Fine Chemicals Division
| | - Linga Banoth
- Organic Synthesis and Process Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- Academy of Scientific and Innovative Research
| | - Rajiv Trivedi
- Academy of Scientific and Innovative Research
- AcSIR CSIR-IICT Campus
- Hyderabad
- India
- Catalysis and Fine Chemicals Division
| | - Reddy Shetty Prakasham
- Organic Synthesis and Process Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500007
- India
- Academy of Scientific and Innovative Research
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22
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Sharma MG, Vala RM, Patel HM. Pyridine-2-carboxylic acid as an effectual catalyst for rapid multi-component synthesis of pyrazolo[3,4-b]quinolinones. RSC Adv 2020; 10:35499-35504. [PMID: 35515671 PMCID: PMC9056938 DOI: 10.1039/d0ra06738e] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 09/19/2020] [Indexed: 01/31/2023] Open
Abstract
Green synthesis of pyrazolo[3,4-b]quinolinones was designed using bioproduct pyridine-2-carboxylic acid (P2CA) as a green and efficient catalyst. The multi-component reaction of aldehydes, 1,3-cyclodiones and 5-amino-1-phenyl-pyrazoles regioselectively produced pyrazolo[3,4-b]quinolinones in excellent yield (84–98%). Recyclization of the catalyst was also investigated. The electronic effect of the various substituents in aromatic rings indicated that the reaction proceeded through the carbocation intermediate. This newly designed protocol very quickly constructed products conventionally under milder conditions. Green synthesis of pyrazolo[3,4-b]quinolinones was designed using bioproduct pyridine-2-carboxylic acid (P2CA) as a green and efficient catalyst.![]()
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