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Gupta D, Guliani E, Bajaj K. Coumarin-Synthetic Methodologies, Pharmacology, and Application as Natural Fluorophore. Top Curr Chem (Cham) 2024; 382:16. [PMID: 38722386 DOI: 10.1007/s41061-024-00462-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 04/09/2024] [Indexed: 06/12/2024]
Abstract
Coumarins are secondary metabolites made up of benzene and α-pyrone rings fused together that can potentially treat various ailments, including cancer, metabolic, and degenerative disorders. Coumarins are a diverse category of both naturally occurring as well as synthesized compounds with numerous biological and therapeutic properties. Coumarins as fluorophores play a key role in fluorescent labeling of biomolecules, metal ion detection, microenvironment polarity detection, and pH detection. This review provides a detailed insight into the characteristics of coumarins as well as their biosynthesis in plants and metabolic pathways. Various synthetic strategies for coumarin core involving both conventional and green methods have been discussed comparing advantages and disadvantages of each method. Conventional methods discussed are Pechmann, Knoevenagel, Perkin, Wittig, Kostanecki, Buchwald-Hartwig, and metal-induced coupling reactions such as Heck and Suzuki, as well as green approaches involving microwave or ultrasound energy. Various pharmacological applications of coumarin derivatives are discussed in detail. The structural features and conditions responsible for influencing the fluorescence of coumarin core are also elaborated.
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Affiliation(s)
- Deepshikha Gupta
- Amity Institute of Applied Sciences, Amity University Uttar Pradesh, Sector 125, Noida, India.
| | - Eksha Guliani
- Amity Institute of Applied Sciences, Amity University Uttar Pradesh, Sector 125, Noida, India
| | - Kiran Bajaj
- Amity Institute of Applied Sciences, Amity University Uttar Pradesh, Sector 125, Noida, India
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2
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Sharma V, Sharma A, Wadje BN, Bharate SB. Benzopyrone, a privileged scaffold in drug discovery: An overview of FDA-approved drugs and clinical candidates. Med Res Rev 2024. [PMID: 38532246 DOI: 10.1002/med.22032] [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: 11/17/2023] [Revised: 02/02/2024] [Accepted: 03/04/2024] [Indexed: 03/28/2024]
Abstract
Natural products have always served as an important source of drugs for treating various diseases. Among various privileged natural product scaffolds, the benzopyrone class of compounds has a substantial presence among biologically active compounds. One of the pioneering anticoagulant drugs, warfarin approved in 1954 bears a benzo-α-pyrone (coumarin) nucleus. The widely investigated psoriasis drugs, methoxsalen, and trioxsalen, also contain a benzo-α-pyrone nucleus. Benzo-γ-pyrone (chromone) containing drugs, cromoglic acid, and pranlukast were approved as treatments for asthma in 1982 and 2007, respectively. Numerous other small molecules with a benzopyrone core are under clinical investigation. The present review discusses the discovery, absorption, distribution, metabolism, excretion properties, and synthetic approaches for the Food and Drug Administration-approved and clinical-stage benzopyrone class of compounds. The role of the pyrone core in biological activity has also been discussed. The present review unravels the potential of benzopyrone core in medicinal chemistry and drug development.
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Affiliation(s)
- Venu Sharma
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, India
| | - Ankita Sharma
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India
| | - Bhagyashri N Wadje
- Department of Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana, India
| | - Sandip B Bharate
- Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, Jammu and Kashmir, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India
- Department of Natural Products and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana, India
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3
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Neysi M, Elhamifar D. Amine-containing yolk-shell structured magnetic organosilica nanocomposite as a highly efficient catalyst for the Knoevenagel reaction. Front Chem 2024; 12:1336855. [PMID: 38380398 PMCID: PMC10877015 DOI: 10.3389/fchem.2024.1336855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Accepted: 01/23/2024] [Indexed: 02/22/2024] Open
Abstract
The yolk-shell structured silica nanocomposites have been considered by many researchers due to their specific physical and chemical properties. These materials have been widely used in adsorption and catalysis processes. Especially, the void space of yolk-shell nanostructures can provide a unique environment for storage, compartmentation, and confinement in host-guest interactions. In this paper, for the first time, the preparation, characterization, and catalytic application of a novel amine-containing magnetic methylene-based periodic mesoporous organosilica with yolk-shell structure (YS-MPMO/pr-NH2) are developed. The magnetic periodic mesoporous organosilica nanocomposite was synthesized through surfactant-directed co-condensation of bis(triethoxysilyl)methane (BTEM) and tetraethoxysilane around Fe3O4 nanoparticles. After Soxhlet extraction, the surface of YS-MPMO nanocomposite was modified with 3-aminopropyl trimethoxysilane to deliver YS-MPMO-pr-NH2 nanocatalyst. This catalyst was characterized by using EDX, FT-IR, VSM, TGA, XRD, nitrogen-sorption, and SEM analyses. The catalytic activity of YS-MPMO/pr-NH2 was studied in the Knoevenagel reaction giving the corresponding products in a high yield and selectivity. The YS-MPMO/pr-NH2 nanocatalyst was recovered and reused at least four times without a significant decrease in efficiency and activity. A leaching test was performed to study the nature of the catalyst during reaction conditions Also, the catalytic performance of our designed nanocomposite was compared with some of the previous catalysts used in the Knoevenagel reaction.
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de Abrantes PG, de Abrantes PG, Ferreira JMGDO, Vale JA. NaCl as an eco-friendly and efficient promoter for Knoevenagel condensation at room temperature. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2155836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
| | | | | | - Juliana Alves Vale
- Departamento de Química, Universidade Federal da Paraíba, João Pessoa, Brazil
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5
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Zeinali S, Fekri LZ, Nikpassand M, Varma RS. Greener Syntheses of Coumarin Derivatives Using Magnetic Nanocatalysts: Recent Advances. Top Curr Chem (Cham) 2022; 381:1. [PMID: 36370211 DOI: 10.1007/s41061-022-00407-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 09/09/2022] [Indexed: 11/15/2022]
Abstract
Coumarins (2H-1-benzopyran-2-ones) are an important group of biological heterocyclic compounds present in various parts of many plant species, encompassing an array of biological and pharmaceutical activities. In view of the importance of coumarins in heterocyclic chemistry and biological sciences and recent advances in the design of magnetic nanocatalysts, we present herein recent developments pertaining to their synthesis exclusively using magnetic nanoparticles, which can be retrieved easily and thus conform to the tenets of greener synthesis. The preparation of various types of coumarins such as Pechmann-based coumarins, bis coumarins, pyranocoumarins, and coumarin derivatives bearing amine moiety, linked to nicotinonitriles, N-coumarin-2-furanone, and pyrrole-linked chromene derivatives using nanocatalysts with a Fe3O4 core are described. This review covers the synthetic developments in the recent years 2012-2021 and focuses entirely on the synthesis of coumarins in the presence of magnetic nanocatalysts using greener approaches such as solvent-free conditions or deploying alternative activation methods, namely microwave or ultrasound irradiation.
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Affiliation(s)
- Shohreh Zeinali
- Department of Chemistry, Payame Noor University, PO Box 19395-3697, Tehran, Iran
| | - Leila Zare Fekri
- Department of Chemistry, Payame Noor University, PO Box 19395-3697, Tehran, Iran.
| | | | - Rajender S Varma
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University in Olomouc, Šlechtitelů 27, 783 71, Olomouc, Czech Republic
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Masoudi-Khoram M, Zargarian M, Nematollahi D, Zolfigol MA, Sepehrmansourie H, Khazalpour S. Convergent paired electrosynthesis of different types of bis-β-diketone derivatives based on the knoevenagel condensation reaction under green conditions. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141512] [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]
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7
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Wang X, Jia N, Li J, Liu P, Zhao X, Lin Y, Sun C, Qin W. Sb Nanoparticles Embedded in the N-Doped Carbon Fibers as Binder-Free Anode for Flexible Li-Ion Batteries. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3093. [PMID: 36144880 PMCID: PMC9506069 DOI: 10.3390/nano12183093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/01/2022] [Accepted: 09/03/2022] [Indexed: 06/16/2023]
Abstract
Antimony (Sb) is considered a promising anode for Li-ion batteries (LIBs) because of its high theoretical specific capacity and safe Li-ion insertion potential; however, the LIBs suffer from dramatic volume variation. The volume expansion results in unstable electrode/electrolyte interphase and active material exfoliation during lithiation and delithiation processes. Designing flexible free-standing electrodes can effectively inhibit the exfoliation of the electrode materials from the current collector. However, the generally adopted methods for preparing flexible free-standing electrodes are complex and high cost. To address these issues, we report the synthesis of a unique Sb nanoparticle@N-doped porous carbon fiber structure as a free-standing electrode via an electrospinning method and surface passivation. Such a hierarchical structure possesses a robust framework with rich voids and a stable solid electrolyte interphase (SEI) film, which can well accommodate the mechanical strain and avoid electrode cracks and pulverization during lithiation/delithiation processes. When evaluated as an anode for LIBs, the as-prepared nanoarchitectures exhibited a high initial reversible capacity (675 mAh g-1) and good cyclability (480 mAh g-1 after 300 cycles at a current density of 400 mA g-1), along with a superior rate capability (420 mA h g-1 at 1 A g-1). This work could offer a simple, effective, and efficient approach to improve flexible and free-standing alloy-based anode materials for high performance Li-ion batteries.
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Affiliation(s)
- Xin Wang
- School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China
| | - Nanjun Jia
- School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China
| | - Jianwei Li
- School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China
| | - Pengbo Liu
- School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China
| | - Xinsheng Zhao
- School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China
| | - Yuxiao Lin
- School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China
| | - Changqing Sun
- Research Institute of Interdisciplinary Science and School of Materials Science and Engineering, Dongguan University of Technology, Dongguan 523820, China
| | - Wei Qin
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, China
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8
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Recent Developments in Nanocatalyzed Green Synthetic Protocols of Biologically Potent Diverse O-Heterocycles—A Review. Catalysts 2022. [DOI: 10.3390/catal12060657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The dynamic growth in green organic synthetic methodologies for diverse heterocyclic scaffolds has substantially contributed to the field of medicinal chemistry over the last few decades. The use of hybrid metal nanocatalysts (NCs) is one such benign strategy for ensuring the advancement of modern synthetic chemistry by adhering to the principles of green chemistry, which call for a sustainable catalytic system that converts reacting species into profitable chemicals at a faster rate and tends to reduce waste generation. The metal nanoparticles (NPs) enhance the exposed surface area of the catalytic active sites, thereby making it easier for reactants and metal NCs to have an effective interaction. Several review articles have been published on the preparation of metal NCs and their uses for various catalytic heterocyclic transformations. This review will summarize different metal NCs for the efficient green synthesis of various O-heterocycles. Furthermore, the review will provide a concise overview of the role of metal NCs in the synthesis of O-heterocycles and will be extremely useful to researchers working on developing novel green and simple synthetic pathways to various O-heterocyclic-derived molecules.
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Kumar M, Ansari MNM, Boukhris I, Al‐Buriahi MS, Alrowaili ZA, Alfryyan N, Thomas P, Vaish R. Sonophotocatalytic Dye Degradation Using rGO-BiVO 4 Composites. GLOBAL CHALLENGES (HOBOKEN, NJ) 2022; 6:2100132. [PMID: 35712021 PMCID: PMC9189135 DOI: 10.1002/gch2.202100132] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 01/21/2022] [Indexed: 05/06/2023]
Abstract
Reduced graphene oxide (rGO)/bismuth vanadate BiVO4 composites are fabricated with varied rGO amounts (0, 1, 2, and 3 wt%) through the synergetic effects of ultrasonication, photoinduced reduction, and hydrothermal methods, and the materials are tested as tools for sonophotocatalytic methylene blue (MB) dye degradation. The effect of rGO content on the sonophotocatalytic dye degradation capabilities of the composites are explored. Characterization of the proposed materials is done through transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transformation infrared spectroscopy as well as scanning electron microscopy. The coexistence of BiVO4 and rGO is confirmed using Raman spectroscopy and XRD. TEM confirms the existence of interfaces between rGO and BiVO4 and XPS affirms the existence of varied elemental oxidation states. In order to investigate the charge carriers transportation, time-dependent photocurrent responses of BiVO4 and 2 wt%- rGO/BiVO4 are done under visible light irradiation. The sonophotocatalytic MB dye degradation in an aqueous medium displays promising enhancement with rGO doping in rGO/BiVO4 composite. The 2 wt%- rGO/BiVO4 sample exhibits ≈52% MB dye degradation efficiency as compared to pure BiVO4 (≈25%) in 180 min of the sonophotocatalysis experiment. Phytotoxicity analysis through germination index is done using vigna radiata seeds.
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Affiliation(s)
- Manish Kumar
- School of EngineeringIndian Institute of Technology MandiMandiHimachal Pradesh175005India
| | - M. N. M. Ansari
- Institute of Power EngineeringUniversiti Tenaga NasionalKajangSelangor43000Malaysia
| | - Imed Boukhris
- Department of PhysicsFaculty of ScienceKing Khalid UniversityP. O. Box 9004AbhaSaudi Arabia
- Laboratoire des matériaux composites céramiques et polymères (LaMaCoP)Département de PhysiqueFaculté des Sciences de SfaxUniversité de Sfax BP 805Sfax3000Tunisia
| | - M. S. Al‐Buriahi
- Department of PhysicsSakarya UniversityEsentepe CampusSakarya54187Turkey
| | - Z. A. Alrowaili
- Physics departmentCollege of ScienceJouf UniversityP. O. Box 2014SakakaSaudi Arabia
| | - Nada Alfryyan
- Department of PhysicsCollege of SciencePrincess Nourah bint Abdulrahman UniversityP. O. Box 84428Riyadh11671Saudi Arabia
| | - P. Thomas
- Central Power Research InstituteDielectric Materials Division BengaluruKarnataka560080India
| | - Rahul Vaish
- School of EngineeringIndian Institute of Technology MandiMandiHimachal Pradesh175005India
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10
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A review on structural and magnetic properties of magnesium ferrite nanoparticles. INTERNATIONAL NANO LETTERS 2022. [DOI: 10.1007/s40089-022-00368-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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Recent Advances in the One-Pot Synthesis of Coumarin Derivatives from Different Starting Materials Using Nanoparticles: A Review. Top Catal 2022. [DOI: 10.1007/s11244-022-01571-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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12
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Elyasi Z, Ghomi JS, Najafi GR. Ultrasound-Engineered fabrication of immobilized molybdenum complex on Cross-Linked poly (Ionic Liquid) as a new acidic catalyst for the regioselective synthesis of pharmaceutical polysubstituted spiro compounds. ULTRASONICS SONOCHEMISTRY 2021; 75:105614. [PMID: 34111724 PMCID: PMC8193147 DOI: 10.1016/j.ultsonch.2021.105614] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 05/17/2021] [Accepted: 05/27/2021] [Indexed: 05/16/2023]
Abstract
A novel supported molybdenum complex on cross-linked poly (1-Aminopropyl-3-vinylimidazolium bromide) entrapped cobalt oxide nanoparticles has been successfully fabricated through two different procedures, i.e. ultrasound (US) irradiations (100 W, 40 kHz) and reflux. The efficiency of the two different methods was comparatively investigated on the fundamental properties of proposed catalyst using diverse characterization techniques. Based on the obtained results, the ultrasonication method provides controlled polymerization process; as a result, well connected polymeric network is formed. In addition, the use of ultrasound waves turned out to be able to increase the particles uniformity, specific surface area (from 79.19 to 223.83 m2/g), and the onset thermal degradation temperature (Td) value (from 248 to 400 °C) of the prepared catalyst which intensifies the catalytic efficiency. Besides, US-treated catalyst demonstrated high chemical stability and maintained its cross-linked network after eight cycles recovery, while the cross-linked network of catalyst obtained under silent condition was completely disrupted. Furthermore, the ultrafast multi-step fabrication procedure was performed in less than 6 h under ultrasonic condition while a similar process promoted by a mechanical stirring method came to a conclusion after 5-6 days. Accordingly, the utility of the ultrasound irradiation was proved, and US-treated catalyst was applied for improved synthetic methodology of spiro 1,4-dihydropyridines and spiro pyranopyrazoles through different acidic active sites. Due to the significant synergistic influence between the proposed catalyst and US irradiation, a variety of novel and recognized mono-spiro compounds were fabricated at room temperature in high regioselectivity.
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Affiliation(s)
- Zahra Elyasi
- Department of Chemistry, Qom Branch, Islamic Azad University, Qom, Islamic Republic of Iran
| | - Javad Safaei Ghomi
- Department of Chemistry, Qom Branch, Islamic Azad University, Qom, Islamic Republic of Iran; Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Islamic Republic of Iran.
| | - Gholam Reza Najafi
- Department of Chemistry, Qom Branch, Islamic Azad University, Qom, Islamic Republic of Iran
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13
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Yahyazadehfar M, Ahmadi SA, Sheikhhosseini E, Ghazanfari D. Bentonite Catalyzed an Efficient and Green Synthesis of Arylidene Meldrum's Acid Derivatives in Aqueous Media. LETT ORG CHEM 2021. [DOI: 10.2174/1570178617999200807155325] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In the present paper, a simple, highly efficient, and environmentally friendly protocol
was proposed for the Knoevenagel condensation reaction of aromatic aldehydes using Meldrum’s acid
(2,2-dimethyl-4,6-dioxo-1,3-dioxane) with bentonite as an available non-toxic mineral catalyst exposed
to aqueous media under green conditions. Together with the substitution protocol of electron-donating
or -withdrawing groups, all reactions were finalized from 5 to 120 min in water at 90°C. With regard to
such reactions, the purification of columns on products was not a requirement. Considering the environmental
aspect, use of water as a green solvent, utilization of a reusable catalyst, simple work-up
process and steps, as well as rapid reaction times were taken into account as some characteristics of
these chemical reactions.
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Affiliation(s)
| | - Sayed Ali Ahmadi
- Department of Chemistry, Kerman Branch, Islamic Azad University, Kerman,Iran
| | | | - Dadkhoda Ghazanfari
- Department of Chemistry, Kerman Branch, Islamic Azad University, Kerman,Iran
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Bouhaoui A, Eddahmi M, Dib M, Khouili M, Aires A, Catto M, Bouissane L. Synthesis and Biological Properties of Coumarin Derivatives. A Review. ChemistrySelect 2021. [DOI: 10.1002/slct.202101346] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Abderrazzak Bouhaoui
- Organic and Analytical Chemistry Laboratory Faculty of Sciences and Technologies Sultan Moulay Slimane University BP 523 23000 Beni-Mellal Morocco
| | - Mohammed Eddahmi
- Organic and Analytical Chemistry Laboratory Faculty of Sciences and Technologies Sultan Moulay Slimane University BP 523 23000 Beni-Mellal Morocco
| | - Mustapha Dib
- Organic and Analytical Chemistry Laboratory Faculty of Sciences and Technologies Sultan Moulay Slimane University BP 523 23000 Beni-Mellal Morocco
| | - Mostafa Khouili
- Organic and Analytical Chemistry Laboratory Faculty of Sciences and Technologies Sultan Moulay Slimane University BP 523 23000 Beni-Mellal Morocco
| | - Alfredo Aires
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences CITAB University of Trás-os-Montes e Alto Douro UTAD Vila Real Portugal
| | - Marco Catto
- Department of Pharmacy-Pharmaceutical Sciences University of Bari Aldo Moro via E. Orabona 4 70125 Bari Italy
| | - Latifa Bouissane
- Organic and Analytical Chemistry Laboratory Faculty of Sciences and Technologies Sultan Moulay Slimane University BP 523 23000 Beni-Mellal Morocco
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15
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Taib LA, Keshavarz M, Parhami A. Solvent-free synthesis of 4-substituted coumarins catalyzed by novel brønsted acidic ionic liquids with perchlorate anion: a convenient and practical complementary method for pechmann condensation. REACTION KINETICS MECHANISMS AND CATALYSIS 2021. [DOI: 10.1007/s11144-021-01941-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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16
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Wet-Osot S, Pewklang T, Chansaenpak K, Chudapongse N, Lai RY, Kamkaew A. One-Pot Synthesis of Coumarin-Indomethacin Hybrids as COX-2 Targeting Probes for Cancer Imaging. ChemMedChem 2021; 16:1660-1666. [PMID: 33586347 DOI: 10.1002/cmdc.202100003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Indexed: 01/19/2023]
Abstract
Facile synthesis of 6- or 7-substituted coumarin-indomathacin hybrids (Coum-IDM) has been developed for specific cyclooxygenase-2 (COX-2) binding along with their intrinsic fluorescent properties. A mild and rapid condensation/dehydrative cyclization of 2-hydroxy benzaldehyde with activated indomethacin was carried out in one step under ultrasound irradiation. Coum-IDM4 was found to be the best of this series as it presented significant binding to COX-2 and exhibited higher fluorescent intensity in cancer cells than in normal cells. Therefore, in the light of drug development tools, this new hybrid system could be a potential targeted probe for COX-2-overexpressed inflammation and cancer-cell tracking.
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Affiliation(s)
- Sirawit Wet-Osot
- School of Chemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Thitima Pewklang
- School of Chemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Kantapat Chansaenpak
- National Nanotechnology Center, National Science and Technology Development Agency, Thailand Science Park, Pathum Thani, 12120, Thailand
| | - Nuannoi Chudapongse
- School of Preclinical Sciences, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand.,Center of Excellence in Advanced Functional Materials, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Rung-Yi Lai
- School of Chemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand.,Center of Excellence in Advanced Functional Materials, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Anyanee Kamkaew
- School of Chemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand.,Center of Excellence in Advanced Functional Materials, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
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17
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Mabaso T, Shabalala NG, Kerru N, Jonnalagadda SB. Facile Method for the Synthesis of Cyanoacrylates by Knoevenagel Condensation. ORG PREP PROCED INT 2020. [DOI: 10.1080/00304948.2020.1831894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Thabile Mabaso
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chiltern Hills, Durban, South Africa
| | - Nhlanhla Gracious Shabalala
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chiltern Hills, Durban, South Africa
| | - Nagaraju Kerru
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chiltern Hills, Durban, South Africa
| | - Sreekantha B. Jonnalagadda
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chiltern Hills, Durban, South Africa
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Annunziata F, Pinna C, Dallavalle S, Tamborini L, Pinto A. An Overview of Coumarin as a Versatile and Readily Accessible Scaffold with Broad-Ranging Biological Activities. Int J Mol Sci 2020; 21:E4618. [PMID: 32610556 PMCID: PMC7370201 DOI: 10.3390/ijms21134618] [Citation(s) in RCA: 131] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 06/22/2020] [Accepted: 06/28/2020] [Indexed: 12/19/2022] Open
Abstract
Privileged structures have been widely used as an effective template for the research and discovery of high value chemicals. Coumarin is a simple scaffold widespread in Nature and it can be found in a considerable number of plants as well as in some fungi and bacteria. In the last years, these natural compounds have been gaining an increasing attention from the scientific community for their wide range of biological activities, mainly due to their ability to interact with diverse enzymes and receptors in living organisms. In addition, coumarin nucleus has proved to be easily synthetized and decorated, giving the possibility of designing new coumarin-based compounds and investigating their potential in the treatment of various diseases. The versatility of coumarin scaffold finds applications not only in medicinal chemistry but also in the agrochemical field as well as in the cosmetic and fragrances industry. This review is intended to be a critical overview on coumarins, comprehensive of natural sources, metabolites, biological evaluations and synthetic approaches.
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Affiliation(s)
- Francesca Annunziata
- Department of Pharmaceutical Science, University of Milan, via Mangiagalli 25, 20133 Milan, Italy; (F.A.); (C.P.)
| | - Cecilia Pinna
- Department of Pharmaceutical Science, University of Milan, via Mangiagalli 25, 20133 Milan, Italy; (F.A.); (C.P.)
| | - Sabrina Dallavalle
- Department of Food, Environmental and Nutritional Sciences, University of Milan, via Celoria 2, 20133 Milan, Italy; (S.D.); (A.P.)
| | - Lucia Tamborini
- Department of Pharmaceutical Science, University of Milan, via Mangiagalli 25, 20133 Milan, Italy; (F.A.); (C.P.)
| | - Andrea Pinto
- Department of Food, Environmental and Nutritional Sciences, University of Milan, via Celoria 2, 20133 Milan, Italy; (S.D.); (A.P.)
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19
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Abstract
This review is a compilation of the green synthetic methods used in the synthesis
of coumarin derivatives. Coumarins are a class of compounds with a pronounced wide
range of biological activities, which have found their application in medicine, pharmacology,
cosmetics and food industry. Their biological activity and potential application are
highly dependent on their structure. Therefore, many researchers have been performing
the synthesis of coumarin derivatives on a daily basis. High demands for their synthesis
often result in an increased generation of different waste chemicals. In order to minimize
the utilization and generation of toxic organic substances, green synthetic methods are applied
in this manner. These methods are getting more attention in the last few decades.
Green chemistry methods cover a wide range of methods, including the application of ultrasound
and microwaves, ionic liquids and deep eutectic solvents, solvent-free synthesis, mechanosynthesis
and multicomponent reactions. All typical condensation reactions for coumarin synthesis like Knoevenagel,
Perkin, Kostanecki-Robinson, Pechmann and Reformansky reactions, have been successfully performed using
these green synthetic methods. According to the authors mentioned in this review, not only these methods reduce
the utilization and generation of toxic chemicals, but they can also enhance the reaction performance in
terms of product yields, purity, energy consumption and post-synthetic procedures when compared to the conventional
methods. Due to the significance of coumarins as biologically active systems and the recent demands
of reducing toxic solvents, catalysts and energy consumption, this review provides a first full literature overview
on the application of green synthetic methods in the coumarin synthesis. It covers a literature search over
the period from 1995-2019. The importance of this work is its comprehensive literature survey on a specific
class of heterocyclic compounds, and those researchers working on the coumarin synthesis can find very useful
information on the green synthetic approaches to their synthesis. There are some reviews on the coumarin synthesis,
but most of them cover only specific reactions on coumarin synthesis and none of them the whole range
of green chemistry methods.
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Affiliation(s)
- Maja Molnar
- Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology Osijek, F. Kuhača 20, HR-31000 Osijek, Croatia
| | - Melita Lončarić
- Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology Osijek, F. Kuhača 20, HR-31000 Osijek, Croatia
| | - Marija Kovač
- Inspecto d.o.o., Industrijska zona Nemetin, Vukovarska cesta 239b, HR-31000 Osijek, Croatia
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20
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Thakur A, Pereira G, Patel C, Chauhan V, Dhaked RK, Sharma A. Design, one-pot green synthesis and antimicrobial evaluation of novel imidazopyridine bearing pyran bis-heterocycles. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127686] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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21
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Ghosh M, Jain K, Khan S, Das K, Ghorai TK. New Dual-Functional and Reusable Bimetallic Y 2ZnO 4 Nanocatalyst for Organic Transformation under Microwave/Green Conditions. ACS OMEGA 2020; 5:4973-4981. [PMID: 32201783 PMCID: PMC7081418 DOI: 10.1021/acsomega.9b03875] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 02/19/2020] [Indexed: 06/10/2023]
Abstract
A novel bimetallic and reusable Y2ZnO4 nanocatalyst was synthesized by a simple coprecipitation method. The prepared nanocatalyst exhibited dual catalytic activity and was characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), energy-dispersive X-ray spectroscopy (EDX), and scanning electron microscopy (SEM). The average crystallite and grain sizes were found to be 17 ± 1 and 10 ± 2 nm, respectively. On the one hand, the catalytic activity of the nanocatalyst was studied for the Knoevenagel condensation reaction of aromatic aldehydes with active methylene compounds, such as ethyl cyanoacetate and malononitrile, under microwave irradiation and solvent-free conditions. On the other hand, the nanoparticles also showed faster photocatalytic activity against methyl orange (MO) compared to other dyes. The nanocatalyst was easily recoverable by a simple filtration method and was recycled without any significant loss of catalytic activity. The advantages of this nanocatalyst were a simple workup procedure, high reaction yields, solvent-free conditions, reusability, and a short reaction time under green reaction conditions.
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Affiliation(s)
- Mithun
Kumar Ghosh
- Nanomaterials
and Crystal Designing Laboratory, Department of Chemistry, Indira Gandhi National Tribal University, Amarkantak 484887, Madhya Pradesh, India
| | - Kavita Jain
- Advanced
Organic Synthesis Laboratory, Department of Chemistry, Dr. Harisingh Gour Vishwavidyalaya (Central University), Sagar 470003, Madhya Pradesh, India
| | - Siddique Khan
- Advanced
Organic Synthesis Laboratory, Department of Chemistry, Dr. Harisingh Gour Vishwavidyalaya (Central University), Sagar 470003, Madhya Pradesh, India
| | - Kalpataru Das
- Advanced
Organic Synthesis Laboratory, Department of Chemistry, Dr. Harisingh Gour Vishwavidyalaya (Central University), Sagar 470003, Madhya Pradesh, India
| | - Tanmay Kumar Ghorai
- Nanomaterials
and Crystal Designing Laboratory, Department of Chemistry, Indira Gandhi National Tribal University, Amarkantak 484887, Madhya Pradesh, India
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22
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Recent Advances in the Synthesis of Coumarin Derivatives from Different Starting Materials. Biomolecules 2020; 10:biom10010151. [PMID: 31963362 PMCID: PMC7022947 DOI: 10.3390/biom10010151] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 01/14/2020] [Accepted: 01/14/2020] [Indexed: 12/26/2022] Open
Abstract
The study of coumarin dates back to 1820 when coumarin was first extracted from tonka bean by Vogel. Compounds containing coumarin backbone are a very important group of compounds due to their usage in pharmacy and medicine. Properties and biological activities of coumarin derivatives have a significant role in the development of new drugs. Therefore, many different methods and techniques are developed in order to synthesize coumarin derivatives. Coumarin derivatives could be obtained from different starting materials with various methods but with big differences in yield. This review summarized various methods, techniques and reaction conditions for synthesis of coumarins from different compounds such as aldehydes, phenols, ketones and carboxylic acids.
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23
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Francisco CS, Francisco CS, Constantino AF, Neto ÁC, Lacerda V. Synthetic Methods Applied in the Preparation of Coumarin-based Compounds. CURR ORG CHEM 2020. [DOI: 10.2174/1385272823666191121150047] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Coumarins (2H-chromen-2-ones) are heterocyclic compounds of wide scientific
interest due to their important biological and pharmaceutical properties such as antitumor,
antioxidant, anti-inflammatory and antimicrobial activities as well as enzymatic inhibitors
related to neurodegenerative diseases. Due to their structural variability, this compound
class has been attracting considerable interest in the natural products and synthetic organic
chemistry areas. Coumarins and their derivatives have been prepared by a variety of methods,
including Perkin, Wittig and Reformatsky reactions, Pechmann and Knoevenagel
condensations, and Claisen rearrangement, among others. In the present review we report
the different synthetic methods used in the preparation of coumarin derivatives exploited
in the last ten years (from 2008 to 2018), regarding the research demand for new structural
scaffolds.
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Affiliation(s)
- Carla S. Francisco
- Programa de Pós-Graduação em Química, Centro de Ciências Exatas, Universidade Federal do Espírito Santo, Campus Goiabeiras, Vitória, Brazil
| | - Cristina S. Francisco
- Programa de Pós-Graduação em Química, Centro de Ciências Exatas, Universidade Federal do Espírito Santo, Campus Goiabeiras, Vitória, Brazil
| | | | - Álvaro Cunha Neto
- Programa de Pós-Graduação em Química, Centro de Ciências Exatas, Universidade Federal do Espírito Santo, Campus Goiabeiras, Vitória, Brazil
| | - Valdemar Lacerda
- Programa de Pós-Graduação em Química, Centro de Ciências Exatas, Universidade Federal do Espírito Santo, Campus Goiabeiras, Vitória, Brazil
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24
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Preparation and characterization of new inorganic–organic hybrid catalyst H
3
PMo
12
O
40
/Hyd‐SBA‐15 and its application in the domino multi‐component reaction. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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25
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Eshtehardian B, Rouhani M, Mirjafary Z. Green protocol for synthesis of MgFe2O4 nanoparticles and study of their activity as an efficient catalyst for the synthesis of chromene and pyran derivatives under ultrasound irradiation. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-019-01783-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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26
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Safaei Ghomi J, Akbarzadeh Z, Bakhtiari A. Organic–inorganic hybrid material, dichloro N,N'-(1,2-phenylene)bis(2-aminobenzamide) cobalt(II)@Al-SBA-15: an environment friendly catalyst for the synthesis of 3-benzoxazol-2-yl-chromen-2-ones. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1591618] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Javad Safaei Ghomi
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran
| | - Zeinab Akbarzadeh
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran
| | - Atefeh Bakhtiari
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran
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27
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Mishra A, Singh S, Quraishi MA, Srivastava V. A Catalyst-Free Expeditious Green Synthesis of Quinoxaline, Oxazine, Thiazine, and Dioxin Derivatives in Water under Ultrasound Irradiation. ORG PREP PROCED INT 2019. [DOI: 10.1080/00304948.2019.1596469] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Ankush Mishra
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi- 221005, India
| | - S. Singh
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi- 221005, India
| | - M. A. Quraishi
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi- 221005, India
| | - Vandana Srivastava
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi- 221005, India
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28
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ZnS nanoparticles immobilized on graphitic carbon nitride as a recyclable and environmentally friendly catalyst for synthesis of 3-cinnamoyl coumarins. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-03800-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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29
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Banerjee B. Ultrasound and Nano-Catalysts: An Ideal and Sustainable Combination to Carry out Diverse Organic Transformations. ChemistrySelect 2019. [DOI: 10.1002/slct.201803081] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Bubun Banerjee
- Department of Chemistry; Indus International University; V.P.O. Bathu, Distt. Una Himachal Pradesh- 174301 India
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30
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Dehghan P, Mohebat R. A Highly Efficient and Green Synthesis of Pyrimido-Fused Benzophenazines via Microwave-Assisted and H3PW12O40@Nano-ZnO Catalyzed a Sequential One-Pot Cyclization in Aqueous Medium. Polycycl Aromat Compd 2018. [DOI: 10.1080/10406638.2018.1533874] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Parisa Dehghan
- Department of Chemistry, Yazd Branch, Islamic Azad University, Yazd, Iran
| | - Razieh Mohebat
- Department of Chemistry, Yazd Branch, Islamic Azad University, Yazd, Iran
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31
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Ghomi JS, Bakhtiari A. Ultrasonic Accelerated Biginelli-Like Reaction by the Covalently Anchored Copper-Isatoic Anhydride over the Modified Surface of Mesoporous SBA-15 to the Synthesis of Pyrimidines. ChemistrySelect 2018. [DOI: 10.1002/slct.201802435] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Javad Safaei Ghomi
- Department of Organic Chemistry; Faculty of Chemistry; University of Kashan; Kashan, P.O. Box 87317-51167 I. R. Iran
| | - Atefeh Bakhtiari
- Department of Organic Chemistry; Faculty of Chemistry; University of Kashan; Kashan, P.O. Box 87317-51167 I. R. Iran
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32
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Penteado F, Monti B, Sancineto L, Perin G, Jacob RG, Santi C, Lenardão EJ. Ultrasound‐Assisted Multicomponent Reactions, Organometallic and Organochalcogen Chemistry. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800477] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Filipe Penteado
- Laboratório de Síntese Orgânica Limpa – LASOL –Universidade Federal de Pelotas – UFPel – P.O. Box 354 96010-900 Pelotas (RS) Brazil
| | - Bonifacio Monti
- Department of Pharmaceutical Sciences –University of Perugia - Via del Liceo, 1 Perugia (PG) Italy
| | - Luca Sancineto
- Centre of Molecular and Macromolecular StudiesPolish Academy of Sciences, Sienkiewicza 112 90-363 Łódź Poland
| | - Gelson Perin
- Laboratório de Síntese Orgânica Limpa – LASOL –Universidade Federal de Pelotas – UFPel – P.O. Box 354 96010-900 Pelotas (RS) Brazil
| | - Raquel G. Jacob
- Laboratório de Síntese Orgânica Limpa – LASOL –Universidade Federal de Pelotas – UFPel – P.O. Box 354 96010-900 Pelotas (RS) Brazil
| | - Claudio Santi
- Department of Pharmaceutical Sciences –University of Perugia - Via del Liceo, 1 Perugia (PG) Italy
| | - Eder J. Lenardão
- Laboratório de Síntese Orgânica Limpa – LASOL –Universidade Federal de Pelotas – UFPel – P.O. Box 354 96010-900 Pelotas (RS) Brazil
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33
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Tang H, Li Y, Liu N, Fu L, Liu Y. A Highly-Efficient KF-Modified Nanorod Support Zr−Ce Oxide Catalyst and its Application. ChemCatChem 2018. [DOI: 10.1002/cctc.201801036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hongjuan Tang
- School of Chemical Engineering; Xiangtan University; Xiangtan 411105 P. R. China
| | - Yongfei Li
- School of Chemical Engineering; Xiangtan University; Xiangtan 411105 P. R. China
- National &Local United Engineering Research Center for Chemical process Simulation and Intensification; Xiangtan University; Xiangtan 411105 P. R. China
| | - Ning Liu
- School of Materials and Chemistry Engineering; Hunan Institute of Technology; Hengyang 421002 P. R. China
| | - Lin Fu
- School of Chemical Engineering; Xiangtan University; Xiangtan 411105 P. R. China
| | - Yuejin Liu
- School of Chemical Engineering; Xiangtan University; Xiangtan 411105 P. R. China
- National &Local United Engineering Research Center for Chemical process Simulation and Intensification; Xiangtan University; Xiangtan 411105 P. R. China
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34
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Cebrián-García S, Balu AM, Luque R. Ultrasound-Assisted Esterification of Valeric Acid to Alkyl Valerates Promoted by Biosilicified Lipases. Front Chem 2018; 6:197. [PMID: 29930937 PMCID: PMC5999784 DOI: 10.3389/fchem.2018.00197] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 05/15/2018] [Indexed: 11/13/2022] Open
Abstract
A novel, environmentally friendly, and sustainable ultrasound-assisted methodology in the valorization of valeric acid to alkyl valerate using a biosilicified lipase from Candida antarctica is reported. This one-pot room temperature methodology of enzyme biosilicification leads to biosilicified lipases with improved activity and reaction efficiency as compared to free enzymes. Yields in the ultrasound-promoted esterification of valeric acid was ca. 90% in 2 h with 15% m/v of biosilicified lipase (Bio-lipase; 616 U/g biocatalyst enzymatic activity) and a molar ratio 1:2 (valeric acid:ethanol), slightly superior to that observed by the free enzyme (75% conversion, 583U/g biocatalyst enzymatic activity). The reuse of enzymes in these conditions was tested and the results show a relatively good reusability of these biosilicified enzymes under the investigated conditions, particularly preserving fairly stable specific activities (616 vs. 430 U/g biocatalyst after four reuses).
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Affiliation(s)
| | - Alina M Balu
- Departamento de Quimica Organica, Universidad de Cordoba, Cordoba, Spain
| | - Rafael Luque
- Departamento de Quimica Organica, Universidad de Cordoba, Cordoba, Spain.,Scientific Center for Molecular Design and Synthesis of Innovative Compounds for the Medical Industry, Peoples Friendship University of Russia (RUDN), Moscow, Russia
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35
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Mohammadrezaei M, Mohebat R, Tabatabaee M. H 3
PW 12
O 40
@nano-ZnO: An efficient, recyclable, and eco-friendly catalyst for the green synthesis of novel benzo[ a
]pyrimido[5′,4′:5,6]pyrano[2,3- c
]phenazines via sequential multicomponent reactions under microwave irradiation. J CHIN CHEM SOC-TAIP 2018. [DOI: 10.1002/jccs.201700359] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Razieh Mohebat
- Department of Chemistry, Yazd Branch; Islamic Azad University; Yazd Iran
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36
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Stefanachi A, Leonetti F, Pisani L, Catto M, Carotti A. Coumarin: A Natural, Privileged and Versatile Scaffold for Bioactive Compounds. Molecules 2018; 23:E250. [PMID: 29382051 PMCID: PMC6017103 DOI: 10.3390/molecules23020250] [Citation(s) in RCA: 290] [Impact Index Per Article: 48.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 01/22/2018] [Accepted: 01/25/2018] [Indexed: 12/22/2022] Open
Abstract
Many naturally occurring substances, traditionally used in popular medicines around the world, contain the coumarin moiety. Coumarin represents a privileged scaffold for medicinal chemists, because of its peculiar physicochemical features, and the versatile and easy synthetic transformation into a large variety of functionalized coumarins. As a consequence, a huge number of coumarin derivatives have been designed, synthesized, and tested to address many pharmacological targets in a selective way, e.g., selective enzyme inhibitors, and more recently, a number of selected targets (multitarget ligands) involved in multifactorial diseases, such as Alzheimer's and Parkinson's diseases. In this review an overview of the most recent synthetic pathways leading to mono- and polyfunctionalized coumarins will be presented, along with the main biological pathways of their biosynthesis and metabolic transformations. The many existing and recent reviews in the field prompted us to make some drastic selections, and therefore, the review is focused on monoamine oxidase, cholinesterase, and aromatase inhibitors, and on multitarget coumarins acting on selected targets of neurodegenerative diseases.
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Affiliation(s)
- Angela Stefanachi
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari "Aldo Moro", via E. Orabona 4, I-70125 Bari, Italy.
| | - Francesco Leonetti
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari "Aldo Moro", via E. Orabona 4, I-70125 Bari, Italy.
| | - Leonardo Pisani
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari "Aldo Moro", via E. Orabona 4, I-70125 Bari, Italy.
| | - Marco Catto
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari "Aldo Moro", via E. Orabona 4, I-70125 Bari, Italy.
| | - Angelo Carotti
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari "Aldo Moro", via E. Orabona 4, I-70125 Bari, Italy.
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