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Li B, Wen W, Wen W, Guo H, Fu C, Zhang Y, Zhu L. Application of Chitosan/Poly(vinyl alcohol) Stabilized Copper Film Materials for the Borylation of α, β-Unsaturated Ketones, Morita-Baylis-Hillman Alcohols and Esters in Aqueous Phase. Molecules 2023; 28:5609. [PMID: 37513482 PMCID: PMC10386186 DOI: 10.3390/molecules28145609] [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: 06/28/2023] [Revised: 07/21/2023] [Accepted: 07/21/2023] [Indexed: 07/30/2023] Open
Abstract
A chitosan/poly(vinyl alcohol)-stabilized copper nanoparticle (CP@Cu NPs) was used as a heterogeneous catalyst for the borylation of α, β-unsaturated ketones, MBH alcohols, and MBH esters in mild conditions. This catalyst not only demonstrated remarkable efficiency in synthesizing organoboron compounds but also still maintained excellent reactivity and stability even after seven recycled uses of the catalyst. This methodology provides a gentle and efficient approach to synthesize the organoboron compounds by efficiently constructing carbon-boron bonds.
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Affiliation(s)
- Bojie Li
- School of Chemistry and Materials Science, Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables, Hubei Engineering University, Xiaogan 432000, China
| | - Wu Wen
- School of Chemistry and Materials Science, Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables, Hubei Engineering University, Xiaogan 432000, China
- School of Materials Science and Engineering, Hubei University, Wuhan 430062, China
| | - Wei Wen
- School of Chemistry and Materials Science, Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables, Hubei Engineering University, Xiaogan 432000, China
- School of Materials Science and Engineering, Hubei University, Wuhan 430062, China
| | - Haifeng Guo
- School of Chemistry and Materials Science, Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables, Hubei Engineering University, Xiaogan 432000, China
- School of Materials Science and Engineering, Hubei University, Wuhan 430062, China
| | - Chengpeng Fu
- School of Chemistry and Materials Science, Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables, Hubei Engineering University, Xiaogan 432000, China
- School of Materials Science and Engineering, Hubei University, Wuhan 430062, China
| | - Yaoyao Zhang
- School of Chemistry and Materials Science, Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables, Hubei Engineering University, Xiaogan 432000, China
| | - Lei Zhu
- School of Chemistry and Materials Science, Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables, Hubei Engineering University, Xiaogan 432000, China
- School of Materials Science and Engineering, Hubei University, Wuhan 430062, China
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2
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Jalilian Z, Moosavi-Zare AR, Ghadermazi M, Goudarziafshar H. TiO 2/porous carbon as a new nanocomposite and catalyst for the preparation of 4 H-pyrimido[2,1- b]benzimidazoles †. RSC Adv 2023; 13:10642-10649. [PMID: 37025670 PMCID: PMC10071567 DOI: 10.1039/d3ra00367a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 03/28/2023] [Indexed: 04/07/2023] Open
Abstract
A nano TiO2/porous carbon nanocomposite (TiO2/PCN) was designed by the pyrolysis of peanut shells as bio waste with nano titanium dioxide. In the presented nanocomposite, titanium dioxide is properly placed in the positions and pores of the porous carbon, so that it acts as an optimal catalyst in the nanocomposite structure. The structure of TiO2/PCN was studied by various analyses such as Fourier transform infrared spectroscopy (FT-IR), energy-dispersive X-ray Spectroscopy (EDX), scanning electron microscopy (SEM), SEM coupled EDX (SEM mapping), transmission electron microscopy (TEM), X-ray fluorescence (XRF) and BET. TiO2/PCN was successfully tested as a nano catalyst for the preparation of some 4H-pyrimido[2,1-b]benzimidazoles in high yields (90–97%) and short reaction times (45–80 min). A nano TiO2/porous carbon nanocomposite (TiO2/PCN) was designed by the pyrolysis of peanut shells as bio waste with nano titanium dioxide and was successfully tested as a catalyst for the preparation of some 4H-pyrimido[2,1-b]benzimidazoles.![]()
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Affiliation(s)
- Zahra Jalilian
- Department of Chemistry, University of KurdistanP.O. Box 66135-416SanandajIran
| | | | - Mohammad Ghadermazi
- Department of Chemistry, University of KurdistanP.O. Box 66135-416SanandajIran
| | - Hamid Goudarziafshar
- Department of Chemical Engineering, Hamedan University of TechnologyHamedan65155Iran
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3
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Handique S, Sharma P. Extensive Biginelli Reaction: Activated Charcoal Promoted Green Approach for one pot synthesis of 4H-pyrimido[2,1-b][1,3]benzothiazole-3-carboxylate derivatives. RESULTS IN CHEMISTRY 2023. [DOI: 10.1016/j.rechem.2023.100781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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4
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Valiey E, Dekamin MG, Bondarian S. Sulfamic acid grafted to cross-linked chitosan by dendritic units: a bio-based, highly efficient and heterogeneous organocatalyst for green synthesis of 2,3-dihydroquinazoline derivatives. RSC Adv 2022; 13:320-334. [PMID: 36605675 PMCID: PMC9768850 DOI: 10.1039/d2ra07319f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022] Open
Abstract
In this work, novel cross-linked chitosan by the G1 dendrimer from condensation of melamine and toluene-2,4-diisocyante terminated by sulfamic acid groups (CS-TDI-Me-TDI-NHSO3H), as a bio-based and heterogeneous acidic organocatalyst, was designed and prepared. Also, the structure of the prepared organocatalyst was characterized by Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD) and thermogravimetric analysis/derivative thermogravimetry (TGA/DTA). Subsequently, the catalytic performance of the biobased and dendritic CS-TDI-Me-TDI-NHSO3H, as a multifunctional solid acid, was evaluated for the preparation of 2,3-dihydroquinazoline derivatives through a three-component reaction by following green chemistry principles. Some of the advantages of this new protocol include high to excellent yields and short reaction times as well as easy preparation and remarkable catalyst stability of the introduced acidic organocatalyst. The CS-TDI-Me-TDI-SO3H catalyst can be used for up to five cycles for the preparation of quinazoline derivatives with a slight decrease in its catalytic activity.
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Affiliation(s)
- Ehsan Valiey
- Pharmaceutical and Heterocyclic Compounds Research Laboratory, Department of Chemistry, Iran University of Science and TechnologyTehran1684613314Iran
| | - Mohammad G. Dekamin
- Pharmaceutical and Heterocyclic Compounds Research Laboratory, Department of Chemistry, Iran University of Science and TechnologyTehran1684613314Iran
| | - Shirin Bondarian
- Pharmaceutical and Heterocyclic Compounds Research Laboratory, Department of Chemistry, Iran University of Science and TechnologyTehran1684613314Iran
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5
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Preparation of a Montmorillonite-Modified Chitosan Film-Loaded Palladium Heterogeneous Catalyst and its Application in the Preparation of Biphenyl Compounds. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248984. [PMID: 36558118 PMCID: PMC9782881 DOI: 10.3390/molecules27248984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/11/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Abstract
The natural polymer chitosan was modified with polyvinyl alcohol to enhance the mechanical properties of the membrane, and then, the montmorillonite-modified chitosan-loaded palladium catalyst was prepared using the excellent coordination properties of montmorillonite. The results showed that the catalyst has good tensile strength, thermal stability, catalytic activity, and recycling performance and is a green catalytic material with industrial application potential.
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6
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Nagarkar RA, Dapurkar SE. Disodium Anacardate: A Bio-based Catalyst for Room Temperature Synthesis of New, Fluorescent 1, 4-Benzoxazinone and Benzophenoxazinone Derivatives. J CHEM SCI 2022. [DOI: 10.1007/s12039-022-02082-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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7
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Mallah D, Mirjalili BBF. Preparation and application of FNAOSiPPEA/Cu(II) as a novel magnetite almondshell based Lewis acid-Bronsted base nano-catalyst for the synthesis of pyrimidobenzothiazoles. BMC Chem 2022; 16:45. [PMID: 35690776 PMCID: PMC9188727 DOI: 10.1186/s13065-022-00838-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 06/02/2022] [Indexed: 11/19/2022] Open
Abstract
Background The magnetic nano-catalysts improve the contact between substrates and catalyst considerably and simple isolation of catalyst from reaction mixture. In this study, Fe3O4@nano-almondshell@OSi(CH2)3/2-(1-piperazinyl)ethylamine/Cu(II) abbreviated (FNAOSiPPEA/Cu(II)), was prepared, characterized and applied for the synthesis of 4H-pyrimido[2,1-b]benzothiazole. Results FNAOSiPPEA/Cu(II) as a bio-based nano-catalyst was prepared from the complexation of copper on 2-(1-piperazinyl)ethylamine, which was immobilized on Fe3O4@nano-almondshell@OSi(CH2)3 section. This new heterogeneous bifunctional Lewis acid/Bronsted base catalyst (FNAOSiPPEA/Cu(II)) was characterized by various techniques such as FT-IR, FESEM, TGA, EDS-MAP, XRD, VSM, BET, TEM, and XPS. So, the catalytic performance of this recyclable nano-catalyst was determined to promote the synthesis of 4H-pyrimido[2,1-b]benzothiazole derivatives at 100 °C under solvent-free conditions. Conclusions Magnetite nano-catalyst of (FNAOSiPPEA/Cu(II)) is easily separated by an external magnet and successfully reused up at least 3 times with a slight loss of yield of the desired product. Supplementary Information The online version contains supplementary material available at 10.1186/s13065-022-00838-6.
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Affiliation(s)
- Dina Mallah
- Department of Chemistry, College of Science, Yazd University, P.O. Box 89195-741, Yazd, Iran
| | - Bi Bi Fatemeh Mirjalili
- Department of Chemistry, College of Science, Yazd University, P.O. Box 89195-741, Yazd, Iran.
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8
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Ren J, Ye X, Shi X, Xu H, Wu L, Wang T. N-Doped natural albite mineral as green solid catalyst for efficient isomerization of glucose into fructose in water. REACT CHEM ENG 2022. [DOI: 10.1039/d2re00112h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A green and effiecient N-doped mineral catalyst (i.e., CS/Ab) prepared by biomass waste and natural albite was explotied for glucose-to-fructose isomerization.
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Affiliation(s)
- Jiabing Ren
- School of Environmental Science and Engineering, State Key Lab of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Xin Ye
- School of Environmental Science and Engineering, State Key Lab of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Xiaoyu Shi
- School of Environmental Science and Engineering, State Key Lab of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Huixing Xu
- China-UK Low-Carbon College, Shanghai Jiao Tong University, Shanghai, 200240, P.R. China
| | - Lanxin Wu
- School of Environmental Science and Engineering, State Key Lab of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Tianfu Wang
- School of Environmental Science and Engineering, State Key Lab of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
- China-UK Low-Carbon College, Shanghai Jiao Tong University, Shanghai, 200240, P.R. China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 2002240, China
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9
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Zhang Y, Zhou L, Han B, Li W, Li B, Zhu L. Research Progress of Chitosan Supported Copper Catalyst in Organic Reactions. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202107066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Kheilkordi Z, Mohammadi Ziarani G, Mohajer F, Badiei A, Varma RS. Waste-to-wealth transition: application of natural waste materials as sustainable catalysts in multicomponent reactions. GREEN CHEMISTRY 2022; 24:4304-4327. [DOI: 10.1039/d2gc00704e] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Application of natural waste materials as sustainable catalysts in multicomponent reactions.
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Affiliation(s)
- Zohreh Kheilkordi
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Tehran, 1993893979, Iran
| | - Ghodsi Mohammadi Ziarani
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Tehran, 1993893979, Iran
| | - Fatemeh Mohajer
- Department of Chemistry, Faculty of Physics and Chemistry, Alzahra University, Tehran, 1993893979, Iran
| | - Alireza Badiei
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Rajender S. Varma
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacky University, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
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11
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Wojaczyńska E, Steppeler F, Iwan D, Scherrmann MC, Marra A. Synthesis and Applications of Carbohydrate-Based Organocatalysts. Molecules 2021; 26:7291. [PMID: 34885873 PMCID: PMC8659088 DOI: 10.3390/molecules26237291] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 11/22/2021] [Accepted: 11/24/2021] [Indexed: 12/22/2022] Open
Abstract
Organocatalysis is a very useful tool for the asymmetric synthesis of biologically or pharmacologically active compounds because it avoids the use of noxious metals, which are difficult to eliminate from the target products. Moreover, in many cases, the organocatalysed reactions can be performed in benign solvents and do not require anhydrous conditions. It is well-known that most of the above-mentioned reactions are promoted by a simple aminoacid, l-proline, or, to a lesser extent, by the more complex cinchona alkaloids. However, during the past three decades, other enantiopure natural compounds, the carbohydrates, have been employed as organocatalysts. In the present exhaustive review, the detailed preparation of all the sugar-based organocatalysts as well as their catalytic properties are described.
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Affiliation(s)
- Elżbieta Wojaczyńska
- Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50 370 Wrocław, Poland
| | - Franz Steppeler
- Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50 370 Wrocław, Poland
| | - Dominika Iwan
- Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50 370 Wrocław, Poland
| | - Marie-Christine Scherrmann
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Université Paris-Saclay, Bâtiment 420, 91405 Orsay, France
| | - Alberto Marra
- Institut des Biomolécules Max Mousseron (IBMM-UMR 5247), Université de Montpellier, Pôle Chimie Balard Recherche, 1919 Route de Mende, 34293 Montpellier, France
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12
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Atara HD, Brahmbhatt GC, Parmar VM, Parmar NJ, Gupta VK. A Chitosan‐CatalyzedDomino Aldol‐Hetero‐Diels‐Alder Synthesis of Cyclic Heptanoid‐Annulated Pyran Scaffolds. ChemistrySelect 2021. [DOI: 10.1002/slct.202103333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hiralben D. Atara
- Department of Chemistry Sardar Patel University, Vallabh Vidyanagar 388120. Dist. Anand Gujarat India
| | | | - Vishalkumar M. Parmar
- Department of Chemistry Sardar Patel University, Vallabh Vidyanagar 388120. Dist. Anand Gujarat India
| | - Narsidas J. Parmar
- Department of Chemistry Sardar Patel University, Vallabh Vidyanagar 388120. Dist. Anand Gujarat India
| | - Vivek K. Gupta
- P. G. Department of Physics University of Jammu Jammu Tawi 180006 India
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13
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Mathavan S, Yamajala RBRD. Elemental Sulfur‐Promoted Tandem One‐Pot Synthesis of Diverse 4
H
‐Pyrimido[2,1‐
b
]benzothiazoles. ChemistrySelect 2021. [DOI: 10.1002/slct.202102302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Sivagami Mathavan
- Department of Chemistry School of Chemical & Biotechnology SASTRA Deemed University Thanjavur 613401 India
| | - Rajesh B. R. D. Yamajala
- Department of Chemistry School of Chemical & Biotechnology SASTRA Deemed University Thanjavur 613401 India
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14
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15
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Green and highly efficient MCR strategy for the synthesis of pyrimidine analogs in water via C–C and C–N bond formation and docking studies. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04529-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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16
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Shen H, Jiang C, Li W, Wei Q, Ghiladi RA, Wang Q. Synergistic Photodynamic and Photothermal Antibacterial Activity of In Situ Grown Bacterial Cellulose/MoS 2-Chitosan Nanocomposite Materials with Visible Light Illumination. ACS APPLIED MATERIALS & INTERFACES 2021; 13:31193-31205. [PMID: 34164984 DOI: 10.1021/acsami.1c08178] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Owing to the rise in prevalence of multidrug-resistant pathogens attributed to the overuse of antibiotics, infectious diseases caused by the transmission of microbes from contaminated surfaces to new hosts are an ever-increasing threat to public health. Thus, novel materials that can stem this crisis, while also functioning via multiple antimicrobial mechanisms so that pathogens are unable to develop resistance to them, are in urgent need. Toward this goal, in this work, we developed in situ grown bacterial cellulose/MoS2-chitosan nanocomposite materials (termed BC/MoS2-CS) that utilize synergistic membrane disruption and photodynamic and photothermal antibacterial activities to achieve more efficient bactericidal activity. The BC/MoS2-CS nanocomposite exhibited excellent antibacterial efficacy, achieving 99.998% (4.7 log units) and 99.988% (3.9 log units) photoinactivation of Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus, respectively, under visible-light illumination (xenon lamp, 500 W, λ ≥ 420 nm, and 30 min). Mechanistic studies revealed that the use of cationic chitosan likely facilitated bacterial membrane disruption and/or permeability, with hyperthermia (photothermal) and reactive oxygen species (photodynamic) leading to synergistic pathogen inactivation upon visible-light illumination. No mammalian cell cytotoxicity was observed for the BC/MoS2-CS membrane, suggesting that such composite nanomaterials are attractive as functional materials for infection control applications.
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Affiliation(s)
- Huiying Shen
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Chenyu Jiang
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Wei Li
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Qufu Wei
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Reza A Ghiladi
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Qingqing Wang
- Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi 214122, China
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17
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Mousavi H. A comprehensive survey upon diverse and prolific applications of chitosan-based catalytic systems in one-pot multi-component synthesis of heterocyclic rings. Int J Biol Macromol 2021; 186:1003-1166. [PMID: 34174311 DOI: 10.1016/j.ijbiomac.2021.06.123] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 05/16/2021] [Accepted: 06/16/2021] [Indexed: 12/12/2022]
Abstract
Heterocyclic compounds are among the most prestigious and valuable chemical molecules with diverse and magnificent applications in various sciences. Due to the remarkable and numerous properties of the heterocyclic frameworks, the development of efficient and convenient synthetic methods for the preparation of such outstanding compounds is of great importance. Undoubtedly, catalysis has a conspicuous role in modern chemical synthesis and green chemistry. Therefore, when designing a chemical reaction, choosing and or preparing powerful and environmentally benign simple catalysts or complicated catalytic systems for an acceleration of the chemical reaction is a pivotal part of work for synthetic chemists. Chitosan, as a biocompatible and biodegradable pseudo-natural polysaccharide is one of the excellent choices for the preparation of suitable catalytic systems due to its unique properties. In this review paper, every effort has been made to cover all research articles in the field of one-pot synthesis of heterocyclic frameworks in the presence of chitosan-based catalytic systems, which were published roughly by the first quarter of 2020. It is hoped that this review paper can be a little help to synthetic scientists, methodologists, and catalyst designers, both on the laboratory and industrial scales.
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Affiliation(s)
- Hossein Mousavi
- Department of Organic Chemistry, Faculty of Chemistry, Urmia University, Urmia, Iran.
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18
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Pandey R, Singh D, Thakur N, Raj KK. Catalytic C-H Bond Activation and Knoevenagel Condensation Using Pyridine-2,3-Dicarboxylate-Based Metal-Organic Frameworks. ACS OMEGA 2021; 6:13240-13259. [PMID: 34056473 PMCID: PMC8158822 DOI: 10.1021/acsomega.1c01155] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 04/23/2021] [Indexed: 05/08/2023]
Abstract
Three 1D coordination polymers (CPs) [M(pdca)(H2O)2] n (M = Zn, Cd, and Co; 1-3), and a 3D coordination framework {[(CH3)2NH2][CuK(2,3-pdca)(pa)(NO3)2]} n (4) (2,3-pdca = pyridine-2,3-dicarboxylate and pa = picolinic acid), have been synthesized adopting a solvothermal reaction strategy. The CPs have been thoroughly characterized using various spectral techniques, that is, elemental analyses, FT-IR, TGA, DSC, UV/vis, and luminescence. Structural information on 1-4 was obtained by PXRD and X-ray single-crystal analyses, whereas morphological insights were attained through FESEM, AFM, EDX, HRTEM, and BET surface area analyses. Roughness parameters were calculated from AFM analysis, whereas dimensions of small domains and interplanar spacing were defined with the aid of HRTEM. CPs 1-3 are 1D isostructural networks, whereas 4 is a 3D framework. Moreover, 1-4 display moderate luminescence at rt. In addition, 1-4 have been applied as economic and efficient porous catalysts for the Knoevenagel condensation reaction and C-H bond activation under mild conditions with good yields (95-98 and 97-99%), respectively. Notably, 1-3 can be reused up to seven cycles, whereas 4 can be reused up to five catalytic cycles with retained catalytic efficiency. Relative catalytic efficacy toward the Knoevenagel condensation reaction follows in the order 2 > 1 > 3 > 4, whereas 2 > 4 > 1 > 3 for C-H activation. The present result demonstrates synthetic, structural, optical, morphological, and catalytic aspects of 1-4.
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Affiliation(s)
- Rampal Pandey
- Department
of Chemistry, National Institute of Technology
Uttarakhand, Srinagar, Uttarakhand 246174, India
| | - Durgesh Singh
- Department
of Chemistry, Dr. Harisingh Gour University, Sagar, Madhya Pradesh 470003, India
| | - Neha Thakur
- Department
of Chemistry, National Institute of Technology
Uttarakhand, Srinagar, Uttarakhand 246174, India
| | - Krishna K. Raj
- Department
of Chemistry, Dr. Harisingh Gour University, Sagar, Madhya Pradesh 470003, India
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Nageswar YVD, Domingues NL, Katla R, Katla R. Application of Chitosan‐Based Catalysts for Heterocycles Synthesis and Other Reactions. POLYSACCHARIDES 2021. [DOI: 10.1002/9781119711414.ch25] [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] Open
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20
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Abdel-Naby AS, Nabil S, Aldulaijan S, Ababutain IM, Alghamdi AI, Almubayedh S, Khalil KD. Synthesis, Characterization of Chitosan-Aluminum Oxide Nanocomposite for Green Synthesis of Annulated Imidazopyrazol Thione Derivatives. Polymers (Basel) 2021; 13:polym13071160. [PMID: 33916381 PMCID: PMC8038599 DOI: 10.3390/polym13071160] [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: 03/18/2021] [Revised: 03/28/2021] [Accepted: 03/31/2021] [Indexed: 11/16/2022] Open
Abstract
Chitosan-aluminum oxide nanocomposite was synthesized, characterized, and used as a green heterogeneous catalyst to synthesize novel imidazopyrazolylthione derivatives. Nanocomposite polymeric material was characterized by EDS-SEM and XRD. The powerful catalytic activity, and its base character of the nanocomposite, was used to synthesize imidazopyrazolylthione (1) in a good yield compared to traditional cyclocondensation synthesis. Using the nanocomposite catalyst, substitution of the thiol group (1) afforded the corresponding thiourea (2) and the corresponding ester (3). The efficiency of the nanocomposite over the traditional base organic catalyst, Et3N and NaOH, makes it an effective, economic, and reproducible nontoxic catalyst. Moreover, the heterogeneous nanocomposite polymeric film was easily isolated from the reaction medium, and recycled up to four times, without a significant loss of its catalytic activity. The newly synthesized derivatives were screened as antibacterial agents and showed high potency. Molecular docking was also performed for a more in-depth investigation. The results of the docking studies have demonstrated that the docked compounds have strong interaction energies with both Gram-positive and Gram-negative bacteria.
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Affiliation(s)
- Abir S. Abdel-Naby
- Department of Chemistry, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia; (S.N.); (S.A.)
- Water Treatment Unit, Basic & Applied Scientific Research Center (BASRC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia; (I.M.A.); (A.I.A.); (S.A.)
- Correspondence:
| | - Sara Nabil
- Department of Chemistry, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia; (S.N.); (S.A.)
- Water Treatment Unit, Basic & Applied Scientific Research Center (BASRC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia; (I.M.A.); (A.I.A.); (S.A.)
| | - Sarah Aldulaijan
- Department of Chemistry, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia; (S.N.); (S.A.)
- Water Treatment Unit, Basic & Applied Scientific Research Center (BASRC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia; (I.M.A.); (A.I.A.); (S.A.)
| | - Ibtisam M. Ababutain
- Water Treatment Unit, Basic & Applied Scientific Research Center (BASRC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia; (I.M.A.); (A.I.A.); (S.A.)
- Department of Biology, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Azzah I. Alghamdi
- Water Treatment Unit, Basic & Applied Scientific Research Center (BASRC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia; (I.M.A.); (A.I.A.); (S.A.)
- Department of Biology, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Somaiah Almubayedh
- Water Treatment Unit, Basic & Applied Scientific Research Center (BASRC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia; (I.M.A.); (A.I.A.); (S.A.)
| | - Khaled D. Khalil
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt;
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Almunawrah, Yanbu 46423, Saudi Arabia
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21
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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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22
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Pal P, Pal A, Nakashima K, Yadav BK. Applications of chitosan in environmental remediation: A review. CHEMOSPHERE 2021; 266:128934. [PMID: 33246700 DOI: 10.1016/j.chemosphere.2020.128934] [Citation(s) in RCA: 79] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 11/06/2020] [Accepted: 11/07/2020] [Indexed: 05/18/2023]
Abstract
Environmental biotechnology is the use of biotechnology to develop and regulate biological systems for the remediation of environmental contamination. Nature has gifted ample material for remediation of its resources, among which chitosan is one of the most important and largely available biomaterial globally. Chitosan is a biopolymer obtained by deacetylation of chitin extracted from marine waste and its applications from drug delivery to food additives are broadly available. Chitosan exhibit several properties such as availability, low cost, high biocompatibility, and biodegradability. These properties make it biologically and chemically acceptable for use in various fields. Due to some limitations of pure chitosan, there has been a growing interest in modifying the chitosan in order to improve the original properties and widen the applications of pure phase chitosan. Various modified forms of chitosan and their associated applications are reviewed here with emphasis on their use in environmental remediation. The demand of chitosan in the global industrial market is growing which is briefly explained in this paper. Chitosan is used for water purification since a long time and still progress is going on for making it more efficient in the removal process. It can be used as a flocculent and coagulant, as an adsorbent for removing the contaminants like heavy metals, dyes, pesticides, antibiotics, biological contaminants from wastewater. Soil remediation using chitosan material is explained in this review. Various other applications such as drug delivery, food additives, tissue engineering are thoroughly reviewed.
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Affiliation(s)
- Preeti Pal
- School of Environmental Science and Engineering, Indian Institute of Technology, Kharagpur, West Bengal, 721302, India; Department of Biotechnology, Institute of Applied Sciences and Humanities, GLA University, Mathura, India.
| | - Anjali Pal
- School of Environmental Science and Engineering, Indian Institute of Technology, Kharagpur, West Bengal, 721302, India; Civil Engineering Department, Indian Institute of Technology, Kharagpur, West Bengal, 721302, India.
| | - Kazunori Nakashima
- Division of Sustainable Resources Engineering Hokkaido University, Japan.
| | - Brijesh Kumar Yadav
- Hydrology Department, Indian Institute of Technology, Roorkee, Uttarakhand, India.
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23
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Kerru N, Gummidi L, Maddila S, Jonnalagadda SB. A Review of Recent Advances in the Green Synthesis of Azole- and Pyran-based Fused Heterocycles Using MCRs and Sustainable Catalysts. CURR ORG CHEM 2021. [DOI: 10.2174/1385272824999201020204620] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Nitrogen, oxygen and sulfur-containing fused heterocycles are of great importance
because of their exciting and diverse biological activities. The construction of the carbonnitrogen
and carbon-oxygen through a multicomponent reaction approach by using ecofriendly
reusable heterogeneous catalysts are of significant importance as it opens avenues for
the introduction of nitrogen and oxygen in organic molecules. Thus, green methodologies
have gained particular significance in this field; today, green chemistry is considered a tool
for introducing sustainable concepts at the fundamental level. This review emphasizes and
discusses the current progress on the applications of eco-friendly, recyclable heterogeneous
catalysts for the synthesis of different heterocyclic fused systems and their green protocols.
We paid particular attention to the specific integration of carbon-nitrogen, and carbon-oxygen
bond-forming fused heterocycles by a one-pot approach by evaluating the literature between 2012 and the middle of
2020. The efficiency of the catalyst is assessed in terms of reaction time, yield and possible reusability. The MCR and
heterogeneous catalyst strategies have demonstrated broader scope, economical and viability for the green and sustainable
processes in the field of synthetic organic chemistry.
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Affiliation(s)
- Nagaraju Kerru
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chiltern Hills, Durban-4000, South Africa
| | - Lalitha Gummidi
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chiltern Hills, Durban-4000,, South Africa
| | - Suresh Maddila
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chiltern Hills, Durban-4000,, South Africa
| | - Sreekantha B. Jonnalagadda
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chiltern Hills, Durban-4000,, South Africa
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24
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Lu K, Min Z, Qin J, Shi P, Wu J, Fan J, Min Y, Xu Q. Preparation of nitrogen self-doped hierarchical porous carbon with rapid-freezing support for cooperative pollutant adsorption and catalytic oxidation of persulfate. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 752:142282. [PMID: 33207523 DOI: 10.1016/j.scitotenv.2020.142282] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 08/13/2020] [Accepted: 09/07/2020] [Indexed: 06/11/2023]
Abstract
Herein, we report a method to synthesize nitrogen self-doped hierarchical porous carbon materials derived from chitosan. This method uses potassium hydroxide (KOH) activation and rapid-freezing technology. The catalyst (CA-900Q 1-1) obtained after rapid-freezing and KOH activation treatment show excellent persulfate activation ability. It can remove 20 mg bisphenol A (BPA) within 10 min better than traditional metal oxidate and nanomaterials. In the aquatic environment, CA-900Q 1-1 has a high resistance to inorganic anions. CA-900Q 1-1, possessing a high proportion of graphitic nitrogen, provides a sufficient number of active sites for persulfate activation. In addition, the catalyst yielded sizeable specific surface areas (SSAs) (1756.1 m2/g) and a hierarchical pore structure, which helps to improve the mass transfer in the carbon framework. The efficient adsorption of pollutants by the catalyst shortens the time required for target organic molecules to migrate to the catalyst surface and hierarchical pore structure. Furthermore, the catalyst has excellent electrical conductivity (R = 1.73 Ω), which enables pollutants adsorbed on the catalyst surface to transfer electrons to the persulfate through the N-doped sp2-hybrid carbon network faster.
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Affiliation(s)
- Keren Lu
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai University of Electric Power, Shanghai 200090, PR China
| | - Zijun Min
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai University of Electric Power, Shanghai 200090, PR China
| | - Jiaxing Qin
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai University of Electric Power, Shanghai 200090, PR China
| | - Penghui Shi
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai University of Electric Power, Shanghai 200090, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200090, PR China..
| | - Junfeng Wu
- Henan University of Urban Construction, Henan Province Key Laboratory of Water Pollution Control and Rehabilitation Technology, Pingdingshan, Henan 467036, China
| | - Jinchen Fan
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai University of Electric Power, Shanghai 200090, PR China
| | - Yulin Min
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai University of Electric Power, Shanghai 200090, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200090, PR China
| | - Qunjie Xu
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai University of Electric Power, Shanghai 200090, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200090, PR China
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25
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Nano-Co-[4-chlorophenyl-salicylaldimine-pyranopyrimidine dione]Cl2 as a new Schiff base complex and catalyst for the one-pot synthesis of some 4H-pyrimido[2,1-b]benzazoles. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04279-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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26
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Jiao LY, Zhang Z, Hong Q, Ning ZH, Liu S, Sun M, Hao Q, Xu L, Li Z, Ma XX. Recyclable copper catalyst on chitosan for facile preparation of alkyl/aryl mixed phosphates via deaminated esterification between diphenylphosphoryl azides and aliphatic alcohols. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.111120] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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27
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Khazenipour K, Moeinpour F, Mohseni‐Shahri FS. Cu(II)‐supported graphene quantum dots modified NiFe
2
O
4
: A green and efficient catalyst for the synthesis of 4H‐pyrimido[2,1‐b]benzothiazoles in water. J CHIN CHEM SOC-TAIP 2020. [DOI: 10.1002/jccs.202000213] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Khatereh Khazenipour
- Department of Chemistry, Bandar Abbas Branch Islamic Azad University Bandar Abbas Iran
| | - Farid Moeinpour
- Department of Chemistry, Bandar Abbas Branch Islamic Azad University Bandar Abbas Iran
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28
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Jiménez-Gómez CP, Cecilia JA. Chitosan: A Natural Biopolymer with a Wide and Varied Range of Applications. Molecules 2020; 25:E3981. [PMID: 32882899 PMCID: PMC7504732 DOI: 10.3390/molecules25173981] [Citation(s) in RCA: 172] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 08/29/2020] [Accepted: 08/31/2020] [Indexed: 11/29/2022] Open
Abstract
Although chitin is of the most available biopolymers on Earth its uses and applications are limited due to its low solubility. The deacetylation of chitin leads to chitosan. This biopolymer, composed of randomly distributed β-(1-4)-linked D-units, has better physicochemical properties due to the facts that it is possible to dissolve this biopolymer under acidic conditions, it can adopt several conformations or structures and it can be functionalized with a wide range of functional groups to modulate its superficial composition to a specific application. Chitosan is considered a highly biocompatible biopolymer due to its biodegradability, bioadhesivity and bioactivity in such a way this biopolymer displays a wide range of applications. Thus, chitosan is a promising biopolymer for numerous applications in the biomedical field (skin, bone, tissue engineering, artificial kidneys, nerves, livers, wound healing). This biopolymer is also employed to trap both organic compounds and dyes or for the selective separation of binary mixtures. In addition, chitosan can also be used as catalyst or can be used as starting molecule to obtain high added value products. Considering these premises, this review is focused on the structure and modification of chitosan as well as its uses and applications.
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Affiliation(s)
| | - Juan Antonio Cecilia
- Departamento de Química Inorgánica, Cristalografía y Mineralogía (Unidad Asociada al ICP-CSIC), Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos, 29071 Malaga, Spain;
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29
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Wang L, Erişen DE, Yang K, Zhang B, Guan H, Chen S. Anticoagulation and antibacterial functional coating on vascular implant interventional medical catheter. J Biomed Mater Res B Appl Biomater 2020; 108:2868-2877. [PMID: 32420689 DOI: 10.1002/jbm.b.34618] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 03/30/2020] [Accepted: 04/13/2020] [Indexed: 01/12/2023]
Abstract
Vascular implant interventional medical catheter will contact with blood firstly after implantation. The anticoagulation and antibacterial functions of this device will determine the success or failure. Copper (Cu) has been verified to possess multi-biofunctions, but it was challenging to add the Cu metal to most materials. Take advantage of its functionality; Cu has been grafted on the material surface to improve the anticoagulation function and accelerate endothelialization. In this study, a Cu-bearing chitosan coating was prepared on the catheter to endow the anticoagulation and anti-infection functions. Besides, properties characterization and functional evaluation of the coated medical catheter were investigated. Dynamic blood clotting and platelet adhesion tests were carried out to evaluate the anticoagulation property. Besides this, the antibacterial test was used to estimate the anti-infection function. The surface energy and Cu ions release from the coating were detected and calculated by contact angles and immersion tests, respectively. The results of attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) and X-ray photoelectron spectroscopy (XPS) revealed that Cu ions were grafted in the chitosan coating. Thermogravimetric analysis (TA) result showed the concentration of Cu ions in the coating. The results of dynamic blood clotting, platelet adhesion, and antibacterial tests revealed that Cu grafted in chitosan would improve the blood compatibility and anti-infection property. The surface properties and Cu ions release behavior of Cu-bearing coating revealed the reasons for multi-biofunctions. This study indicated that the Cu-bearing chitosan coating could endow the vascular implant interventional device anticoagulation and anti-infection functions, which has excellent potential for clinical application.
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Affiliation(s)
- Lirong Wang
- College of Chemistry, Liaoning University, Shenyang, China
| | - Deniz E Erişen
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China.,University of Science and Technology of China, Hefei, China
| | - Ke Yang
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Bingchun Zhang
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Hongyu Guan
- College of Chemistry, Liaoning University, Shenyang, China
| | - Shanshan Chen
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
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30
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Alishahi N, Nasr‐Esfahani M, Mohammadpoor‐Baltork I, Tangestaninejad S, Mirkhani V, Moghadam M. Nicotine‐based ionic liquid supported on magnetic nanoparticles: An efficient and recyclable catalyst for selective one‐pot synthesis of
mono
‐ and
bis
‐4
H
‐pyrimido[2,1‐
b
]benzothiazoles. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5681] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Nasrin Alishahi
- Department of Chemistry, Catalysis Division University of Isfahan Isfahan 81746‐73441 Iran
| | | | | | | | - Valiollah Mirkhani
- Department of Chemistry, Catalysis Division University of Isfahan Isfahan 81746‐73441 Iran
| | - Majid Moghadam
- Department of Chemistry, Catalysis Division University of Isfahan Isfahan 81746‐73441 Iran
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31
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Fares IMZ, Mekky AEM, Elwahy AHM, Abdelhamid IA. Microwave-assisted three component synthesis of novel bis-fused quinazolin-8(4 H)-ones linked to aliphatic or aromatic spacer viaamide linkages. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1725575] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
| | - Ahmed E. M. Mekky
- Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt
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32
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Anbu N, Hariharan S, Dhakshinamoorthy A. Knoevenagel-Doebner condensation promoted by chitosan as a reusable solid base catalyst. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2019.110744] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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33
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Seenan S, Kulathu Iyer S. Colorimetric Metal Sensing of Fe 3+ and Cr 3+ and Photophysical and Electrochemical Studies Based on Benzo[4,5]thiazolo[3,2- a]pyrimidine-3-carboxylate and Its Derivatives. J Org Chem 2020; 85:1871-1881. [PMID: 31898454 DOI: 10.1021/acs.joc.9b02297] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Benzo[4,5]thiazolo[3, 2-a]pyrimidine-3-carboxylate derivatives (4a-i) containing electron-donor and electron-acceptor groups with remarkable photophysical and electrochemical properties were synthesized. The changes in absorption properties of compound 4a in the presence of various cations were evaluated. Compound 4a can act as a colorimetric sensor for highly sensitive and selective detection of Fe3+ and Cr3+in acetonitrile solvent. Using measurements of absorbance intensity, the binding constants for the 4a + Fe3+ complex and 4a + Cr3+ complex were found to be 1.958 × 108 and 1.5442 × 107 M-1 with lower detection limits of 52 and 110 nM, respectively. 1H NMR titrations, Fourier transform infrared (FTIR) studies, electrospray ionization (ESI)-mass spectra, and Job's plots were used to verify the mechanism of the specific reaction and colorimetric sensing of 4a + Fe3+ and 4a + Cr3+. The application of compound 4a for the determination of Fe3+ in spiked samples of iron tablets in different environmental water samples showed a satisfactory result with good recovery.
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Affiliation(s)
- Shanthi Seenan
- Department of Chemistry , School of Advanced Sciences and Vellore Institute of Technology , Vellore 632014 , India
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34
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Daraie M, Heravi MM. A biocompatible chitosan-ionic liquid hybrid catalyst for regioselective synthesis of 1,2,3-triazols. Int J Biol Macromol 2019; 140:939-948. [DOI: 10.1016/j.ijbiomac.2019.08.162] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 08/15/2019] [Accepted: 08/18/2019] [Indexed: 12/21/2022]
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35
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Han X, Li Y, An H, Zhao X, Wang Y. Chitosan-catalyzed n-butyraldehyde self-condensation reaction mechanism and kinetics. Chin J Chem Eng 2019. [DOI: 10.1016/j.cjche.2019.03.005] [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]
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36
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Lebedeva NS, Guseinov SS, Yurina ES, Gubarev YA, Koifman OI. Thermochemical research of chitosan complexes with sulfonated metallophthalocyanines. Int J Biol Macromol 2019; 137:1153-1160. [PMID: 31295483 DOI: 10.1016/j.ijbiomac.2019.07.051] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 07/07/2019] [Accepted: 07/07/2019] [Indexed: 10/26/2022]
Abstract
The complexation processes of chitosan with cobalt(II)tetrasulfophthalocyanine (CoPc) and copper(II)tetrasulfophthalocyanine (CuPc) were studied calorimetrically in solution. It was established that CoPc forms two types of complexes with chitosan, while CuPc forms a single type of complex with chitosan, in which copper(II)tetrasulfophthalocyanine is in dimerized form. The complexes are thermodynamically stable, which was allowed to study them in a solid form by different methods. Joint application of DSC and TG/DTG methods allowed us to identify the temperature intervals for evaporation of physically and chemically bounded water and thermal decomposition of chitosan and its complexes. The glass transition temperature of chitosan (110.8 °C) is greater than the glass transition temperature of the complexes with CuPc (74.7 °C) and CoPc (71.2 °C). Using SEM images and X-ray data of heated, unheated chitosan and its complexes, it was shown that the complexes are predominantly amorphous. Heating of chitosan and its leads to increasing of amorphous phase. Modification of chitosan by phthalocyanines leads to decreasing of thermal stability of complexes insignificantly.
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Affiliation(s)
- Natalya Sh Lebedeva
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Akademicheskaya, 1, 153045 Ivanovo, Russian Federation
| | - Sabir S Guseinov
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Akademicheskaya, 1, 153045 Ivanovo, Russian Federation
| | - Elena S Yurina
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Akademicheskaya, 1, 153045 Ivanovo, Russian Federation
| | - Yury A Gubarev
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Akademicheskaya, 1, 153045 Ivanovo, Russian Federation.
| | - Oskar I Koifman
- Research Institute of Macroheterocycles, Ivanovo State University of Chemistry and Technology, 153000 Ivanovo, Russian Federation
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Use of an Environmental Pollutant From Hexavalent Chromium Removal as a Green Catalyst in The Fenton Process. Sci Rep 2019; 9:12819. [PMID: 31492935 PMCID: PMC6731299 DOI: 10.1038/s41598-019-49196-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 06/20/2019] [Indexed: 11/08/2022] Open
Abstract
The present study refers to the use of an environmental pollutant generated during the removal of hexavalent chromium from aqueous media. This pollutant is a material with catalytic properties suitable for application in the oxidative degradation of problematic organic compounds. The material, initially used as an adsorbent, is a composite prepared by modifying the crystalline phases of iron oxides together with the chitosan (CT-FeCr). Chemical and morphological characterizations of the materials were performed using SEM analysis coupled with EDS, XRD and DSC. The CT-FeCr beads were used in the degradation of methylene blue dye (MB) and showed excellent degradation potential (93.6%). The presence of Cr on the surface of the catalyst was responsible for the increase in catalytic activity compared to the CT-Fe and pure magnetite materials. The product of the effluent treatment and the presence of the catalyst itself in the environment do not pose toxic effects. In addition, the CT-FeCr beads showed catalytic stability for several consecutive reaction cycles with possible technical and economic viability. The concept of "industrial symbiosis" may be applied to this technology, with that term relating to the reuse of a byproduct generated in one particular industrial sector by another as a raw material.
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Effect of substituent dependent molecular structure on anti-corrosive behavior of one-pot multicomponent synthesized pyrimido [2,1-B] benzothiazoles: Computer modelling supported experimental studies. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.110972] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Cao W, Yue L, Wang Z. High antibacterial activity of chitosan – molybdenum disulfide nanocomposite. Carbohydr Polym 2019; 215:226-234. [DOI: 10.1016/j.carbpol.2019.03.085] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 02/28/2019] [Accepted: 03/25/2019] [Indexed: 12/13/2022]
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Abstract
Introduction:The popularity of chitosan is increasing among the researchers due to its environment friendly nature, high activity and easy approachability. Chitosan based catalysts are not only the most active and selective in catalytic reaction, but their “green” accessibility also makes them promising in organic catalysis. Chitosan is commonly extracted from chitin by alkaline deacetylation and it is the second abundant biopolymer in nature after cellulose. Chitosan based catalysts are advantageous by means of non-metallic activation as it involves small organic molecules. The robustness, nontoxicity, the lack of metal leaching possibility, inertness towards moisture and oxygen, easy handling and storage are the main advantages of organocatalysts. Traditional drawbacks associated with the metal-based heterogeneous catalysts, like longer reaction times during any synthesis, metal-leaching after every reaction and structural instability of the catalyst for prolonged recycling experiments are also very negligible for chitosan based catalysts. Besides, these catalysts can contribute more in catalysis due to their reusability and these special features increase their demand as the functionalized and profitable catalysts.Objective:The thorough description about the preparation of organocatalysts from chitosan and their uniqueness and novel activities in various famous reactions includes as the main aim of this review. Reusable and recycle nature of chitosan based organocatalysts gain the advantages over traditional and conventional catalyst which is further discussed over here.Methods and Discussions:In this article only those reactions are discussed where chitosan has been used both as support in heterogeneous catalysts or used as a catalyst itself without any co-catalyst for some reactions. Owing to its high biodegradability, nontoxicity, and antimicrobial properties, chitosan is widely-used as a green and sustainable polymeric catalyst in vast number of the reactions. Most of the preparations of catalyst have been achieved by exploring the complexation properties of chitosan with metal ions in heterogeneous molecular catalysis. Organocatalysis with chitosan is primarily discussed for carbon-carbon bond-forming reactions, carbon dioxide fixation through cyclo- addition reaction, condensation reaction and fine chemical synthesis reactions. Furthermore, its application as an enantioselective catalyst is also considered here for the chiral, helical organization of the chitosan skeleton. Moreover, another advantage of this polymeric catalyst is its easy recovery and reusability for several times under solvent-free conditions which is also explored in the current article.Conclusion:Important organocatalyzed reactions with either native chitosan or functionalized chitosan as catalysts have attracted great attention in the recent past. Also, chitosan has been widely used as a very promising support for the immobilization of catalytic metals for many reactions. In this review, various reactions have been discussed which show the potentiality of chitosan as catalyst or catalyst support.
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Affiliation(s)
- Dipika Pan
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah-711103, India
| | - Jhuma Ganguly
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah-711103, India
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Chagas PMB, Caetano AA, Rossi MA, Gonçalves MA, de Castro Ramalho T, Corrêa AD, do Rosário Guimarães I. Chitosan-iron oxide hybrid composite: mechanism of hexavalent chromium removal by central composite design and theoretical calculations. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:15973-15988. [PMID: 30963426 DOI: 10.1007/s11356-019-04545-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 02/13/2019] [Indexed: 06/09/2023]
Abstract
In this study, the synthesis of iron oxide stabilized by chitosan was carried out for the application and optimization in the removal process of aqueous Cr(VI) by central composite design (CCD). The calculation of these effects allowed to know, quantitatively, the variables and the interaction between them that could affect the Cr(VI) removal process. It was also verified that the most favorable conditions for chromium removal were the following: pH 5.0, Cr(VI) concentration of 130 mg L-1, adsorbent mass of 5 mg, and Fe(II) content of 45% (w/w) in the CT-Fe beads. The adsorption kinetics performed under these conditions showed that the chitosan/iron hybrid composite is an adsorbent material with high chromium removal capacity (46.12 mg g-1). It was found that all variables were statistically significant. However, it was observed that the variable that most affected Cr(VI) removal was the pH of the solution, followed by the concentration of chromium ions in solution and the interaction between them. Therefore, the studied experimental conditions are efficient in chromium adsorption, besides the operational simplicity coming from statistical design. Theoretical calculations showed that the most stable chitosan was that with Fe(II) in the structure, that is, in the reaction mechanism, there is no competition of Fe(II) with Cr(III, VI) in the available sites of chitosan. Thus, the theoretical calculations show that the proposed Cr(VI) removal is effective.
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Affiliation(s)
- Pricila Maria Batista Chagas
- Laboratório de Catálise Ambiental e Novos Materiais, Departamento de Química, Universidade Federal de Lavras, CEP, Lavras, MG, 37200-000, Brazil
| | - Aline Aparecida Caetano
- Laboratório de Catálise Ambiental e Novos Materiais, Departamento de Química, Universidade Federal de Lavras, CEP, Lavras, MG, 37200-000, Brazil
| | - Marco Aurélio Rossi
- Laboratório de Catálise Ambiental e Novos Materiais, Departamento de Química, Universidade Federal de Lavras, CEP, Lavras, MG, 37200-000, Brazil
| | - Mateus Aquino Gonçalves
- Laboratório de Análise Computacional, Departamento de Química, Universidade Federal de Lavras, CEP, Lavras, MG, 37200-000, Brazil
| | - Teodorico de Castro Ramalho
- Laboratório de Análise Computacional, Departamento de Química, Universidade Federal de Lavras, CEP, Lavras, MG, 37200-000, Brazil
| | - Angelita Duarte Corrêa
- Laboratório de Bioquímica, Departamento de Química, Universidade Federal de Lavras, CEP, Lavras, MG, 37200-000, Brazil
| | - Iara do Rosário Guimarães
- Laboratório de Catálise Ambiental e Novos Materiais, Departamento de Química, Universidade Federal de Lavras, CEP, Lavras, MG, 37200-000, Brazil.
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Bhosle MR, Kharote SA, Bondle GM, Mali JR. Tromethamine organocatalyzed efficient tandem-multicomponent synthesis of new thiazolyl-4-thiazolidinones in aqueous medium. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1597124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Manisha R. Bhosle
- Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, Maharashtra, 431004, India
| | - Sayali A. Kharote
- Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, Maharashtra, 431004, India
| | - Giribala M. Bondle
- Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, Maharashtra, 431004, India
| | - Jyotirling R. Mali
- College of Pharmacy, Dongguk University-Seoul, Goyang, 10326, Republic of Korea
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Lucas N, Athawale AA, Rode CV. Valorization of Oceanic Waste Biomass: A Catalytic Perspective. CHEM REC 2019; 19:1995-2021. [DOI: 10.1002/tcr.201800195] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 02/11/2019] [Indexed: 01/03/2023]
Affiliation(s)
- Nishita Lucas
- Department of ChemistryS.P. Pune University Pune, Maharashtra India
| | | | - Chandrashekhar V. Rode
- Chemical Engineering and Process Development DivisionNational Chemical Laboratory Pune, Maharashtra India
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Cheraghipoor M, Maghsoodlou MT, Faghihi MR. A Green, Novel and Efficient Protocol for the Preparation of Diverse 4 H-Pyrans: The First Report on the Catalytic Activity of Water Extract of Elaeagnus angustifolia Leaves in Organic Reactions. Polycycl Aromat Compd 2019. [DOI: 10.1080/10406638.2018.1557710] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Marzieh Cheraghipoor
- Department of Chemistry, Faculty of Science, University of Sistan and Baluchestan, Zahedan, Iran
| | - Malek Taher Maghsoodlou
- Department of Chemistry, Faculty of Science, University of Sistan and Baluchestan, Zahedan, Iran
| | - Mohammad Reza Faghihi
- Department of Chemistry, Faculty of Science, University of Sistan and Baluchestan, Zahedan, Iran
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Kaurav MS, Sahu PK, Sahu PK, Messali M, Almutairi S, Sahu PL, Agarwal DD. An efficient, mild and metal freel-proline catalyzed construction of fused pyrimidines under microwave conditions in water. RSC Adv 2019; 9:3755-3763. [PMID: 35518091 PMCID: PMC9060310 DOI: 10.1039/c8ra07517d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 01/10/2019] [Indexed: 02/03/2023] Open
Abstract
One-pot condensation of 4-hydroxy coumarins, aldehydes and urea/thiourea to build C–C and C–N bonds is described. Fused pyrimidines have been synthesized under mild reaction conditions using l-proline. The protocol has been performed rapidly and efficiently in water under metal free conditions. Heterocyclic derivatives have been synthesized using the present methodology and avoid the use of hazardous solvents over conventional organic solvents. A proposed mechanism could be established for three component reactions. The present study reveals the first case in which l-proline has been explored as a homogeneous catalyst in the synthesis of fused pyrimidines in water under microwave irradiation. This synthesis involves simple workup and acceptable efficiency. The most notable feature of this protocol is the ability of the catalyst to influence asymmetric induction in the reaction. One-pot condensation of 4-hydroxy coumarins, aldehydes and urea/thiourea to build C–C and C–N bonds is described.![]()
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Affiliation(s)
| | - Pramod K. Sahu
- School of Studies in Chemistry
- Jiwaji University
- Gwalior-474011
- India
- Department of Industrial Chemistry
| | - Praveen K. Sahu
- Department of Industrial Chemistry
- Jiwaji University
- Gwalior-474011
- India
| | - Mouslim Messali
- Department of Chemistry
- Taibah University
- 30002 Al-Madina Al-Mounawara
- Saudi Arabia
| | - Saud M. Almutairi
- King Abdulaziz City for Science and Technology
- Riyadh 11442
- Saudi Arabia
| | - Puran L. Sahu
- Indian Pharmacopoeia Commission
- Ministry of Health and Family Welfare
- Ghaziabad 201002
- India
- National Dope Testing Laboratory (NDTL)
| | - Dau D. Agarwal
- School of Studies in Chemistry
- Jiwaji University
- Gwalior-474011
- India
- Department of Industrial Chemistry
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Safajoo N, Mirjalili BBF, Bamoniri A. Fe3O4@nano-cellulose/Cu(ii): a bio-based and magnetically recoverable nano-catalyst for the synthesis of 4H-pyrimido[2,1-b]benzothiazole derivatives. RSC Adv 2019; 9:1278-1283. [PMID: 35518002 PMCID: PMC9059560 DOI: 10.1039/c8ra09203f] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 12/13/2018] [Indexed: 11/21/2022] Open
Abstract
Fe3O4@nano-cellulose/Cu(ii) as a green bio-based magnetic catalyst was prepared through in situ co-precipitation of Fe2+ and Fe3+ ions in an aqueous suspension of nano-cellulose. The mentioned magnetically heterogeneous catalyst was characterized by FT-IR, XRD, VSM, FESEM, TEM, XRF, EDS and TGA. In this research, the synthesis of 4H-pyrimido[2,1-b]benzothiazole derivatives was developed via a three component reaction of aromatic aldehyde, 2-aminobenzothiazole and ethyl acetoacetate using Fe3O4@nano-cellulose/Cu(ii) under solvent-free condition at 80 °C. Some advantages of this protocol are good yields, environmentally benign, easy work-up and moderate reusability of the catalyst. The product structures were confirmed by FT-IR, 1H NMR, and 13C NMR spectra. Fe3O4@nano-cellulose/Cu(ii) as a green bio-based magnetic catalyst are prepared, characterized and applied for synthesis of 4H-pyrimido[2,1-b]benzothiazoles with good to excellent yields.![]()
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Affiliation(s)
- Nasrin Safajoo
- Department of Chemistry
- College of Science
- Yazd University
- Yazd
- Islamic Republic of Iran
| | | | - Abdolhamid Bamoniri
- Department of Organic Chemistry
- Faculty of Chemistry
- University of Kashan
- Kashan
- Islamic Republic of Iran
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‘Chitosan in water’ as an eco-friendly and efficient catalytic system for Knoevenagel condensation reaction. Carbohydr Polym 2018; 202:355-364. [DOI: 10.1016/j.carbpol.2018.09.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 08/03/2018] [Accepted: 09/05/2018] [Indexed: 11/17/2022]
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Sahu PK, Sahu PK, Kaurav MS, Messali M, Almutairi SM, Sahu PL, Agarwal DD. Metal-Free Construction of Fused Pyrimidines via Consecutive C-C and C-N Bond Formation in Water. ACS OMEGA 2018; 3:15035-15042. [PMID: 31458170 PMCID: PMC6643823 DOI: 10.1021/acsomega.8b01993] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Accepted: 10/10/2018] [Indexed: 05/22/2023]
Abstract
A facile and efficient protocol has been developed for mild construction of fused pyrimidines via l-proline-catalyzed reaction of 4-hydroxy coumarins, aldehydes, and 2-aminobenzothiazoles/urea. The reaction has been carried out rapidly and efficiently in water under mild and metal-free conditions. Current etiquette has efficiently synthesized the heterocycles and avoids the use of hazardous solvents over conventional organic solvents. A plausible reaction mechanism has been established in this study. This study represents the first case in which l-proline as a homogeneous catalyst has been explored in the synthesis of fused pyrimidines in water in view of simple procedure and acceptable efficiency. This method gives the target product in excellent yield with ease of workup.
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Affiliation(s)
- Pramod K. Sahu
- School of Studies in Chemistry and Department of Industrial Chemistry, Jiwaji University, Gwalior 474011, Madhya Pradesh, India
- E-mail: , (Pramod Kumar Sahu)
| | - Praveen K. Sahu
- School of Studies in Chemistry and Department of Industrial Chemistry, Jiwaji University, Gwalior 474011, Madhya Pradesh, India
| | - Manvendra S. Kaurav
- School of Studies in Chemistry and Department of Industrial Chemistry, Jiwaji University, Gwalior 474011, Madhya Pradesh, India
| | - Mouslim Messali
- Department
of Chemistry, Taibah University, 30002 Al-Madina
Al-Mounawara, Saudi Arabia
| | - Saud M. Almutairi
- King Abdulaziz
City for Science and Technology, P.O.
Box 6086, Riyadh 11442, Saudi Arabia
| | - Puran L. Sahu
- Indian Pharmacopoeia Commission Ministry
of Health and Family Welfare, Sector-23, Raj Nagar, Ghaziabad 201002, India
| | - Dau D. Agarwal
- School of Studies in Chemistry and Department of Industrial Chemistry, Jiwaji University, Gwalior 474011, Madhya Pradesh, India
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Riyadh SM, Khalil KD, Aljuhani A. Chitosan-MgO Nanocomposite: One Pot Preparation and Its Utility as an Ecofriendly Biocatalyst in the Synthesis of Thiazoles and [1,3,4]thiadiazoles. NANOMATERIALS 2018; 8:nano8110928. [PMID: 30413060 PMCID: PMC6266359 DOI: 10.3390/nano8110928] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 11/03/2018] [Accepted: 11/04/2018] [Indexed: 12/05/2022]
Abstract
A chitosan-MgO hybrid nanocomposite was prepared using a simple chemical precipitation method and characterized using Fourier transform spectroscopy (FTIR), elemental analysis (EDX), and scanning electron microscopy (SEM). The nanocomposite was served as a powerful ecofriendly basic catalyst under microwave irradiation in the synthesis of two novel series of 5-arylazo-2-hydrazonothiazoles 4a–j and 2-hydrazono[1,3,4]thiadiazoles 8a–d, incorporating a sulfonamide group. The structures of the synthesized products were elucidated by spectral data and elemental analyses. Also, their yield percentages were calculated using triethylamine (as a traditional catalyst) and chitosan-MgO nanocomposite (as a green recyclable catalyst) in a comparative study.
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Affiliation(s)
- Sayed M Riyadh
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Al-Mounawrah 30002, Saudi Arabia.
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt.
| | - Khaled D Khalil
- Department of Chemistry, Faculty of Science, Cairo University, Giza 12613, Egypt.
- Department of Chemistry, Faculty of Science, Taibah University, Yanbu 46423, Saudi Arabia.
| | - Ateyatallah Aljuhani
- Department of Chemistry, Faculty of Science, Taibah University, Al-Madinah Al-Mounawrah 30002, Saudi Arabia.
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Häring M, Tautz M, Alegre-Requena JV, Saldías C, Díaz Díaz D. Non-enzyme entrapping biohydrogels in catalysis. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.07.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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