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Singh V, Rajput K, Singh S, Srivastava V. Montmorillonite K-10 catalyzed synthesis of Hantzsch dihydropyridine derivatives from methyl arenes via in situ generated ammonia under microwave irradiation in neat conditions. RSC Adv 2024; 14:27086-27091. [PMID: 39193309 PMCID: PMC11348851 DOI: 10.1039/d4ra04990j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2024] [Accepted: 08/19/2024] [Indexed: 08/29/2024] Open
Abstract
An expeditious, efficient, and environmentally friendly approach has been established for the synthesis of diverse Hantzsch 1,4-dihydropyridine derivatives utilizing montmorillonite K-10 as a catalyst in solvent-free conditions. The procedure entails the reaction of methyl arynes as a sustainable surrogate of aryl aldehydes, active methylene compounds, and urea hydrogen peroxide (UHP) as an oxidising agent as well as a source of ammonia under microwave irradiation, facilitated by montmorillonite K-10.
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Affiliation(s)
- Vishal Singh
- Department of Chemistry, Indian Institute of Technology (BHU) Varanasi 221005 UP India +91-9453365168
| | - Khushbu Rajput
- Department of Chemistry, Indian Institute of Technology (BHU) Varanasi 221005 UP India +91-9453365168
| | - Sundaram Singh
- Department of Chemistry, Indian Institute of Technology (BHU) Varanasi 221005 UP India +91-9453365168
| | - Vandana Srivastava
- Department of Chemistry, Indian Institute of Technology (BHU) Varanasi 221005 UP India +91-9453365168
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2
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Hjazi A. Fabrication of a novel magnetic nanostructure based on cellulose-gellan gum hydrogel, embedded with MgAl LDH as an efficient catalyst for the synthesis of polyhydroquinoline derivatives. Int J Biol Macromol 2024; 271:132547. [PMID: 38782322 DOI: 10.1016/j.ijbiomac.2024.132547] [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: 12/04/2023] [Revised: 05/12/2024] [Accepted: 05/20/2024] [Indexed: 05/25/2024]
Abstract
Nanocatalysts play a vital role in chemical reactions, energy conservation, and pollution control. They significantly contribute to organic synthesis by using natural polymers as nanoparticle substrates in nanocatalysts. Natural hydrogels made from polysaccharide and/or protein sources may be used to accomplish this. Recent research has focused on using layered double-hydroxides (LDHs) in composites having catalytic properties. Magnetic features of the catalyst allow its extraction from the environment using a magnet after the reaction, improving product efficiency. This work developed a catalyst for producing physiologically relevant polyhydroquinoline derivatives using a novel magnetic nanocomposite containing natural cellulose-gellan gum hydrogel and MgAl LDH. The Cell-GG hydrogel/MgAl LDH/Fe3O4 nanocomposite showed over 90 % efficiency in one-pot production of polyhydroquinoline derivatives by asymmetric Hantzsch condensation. Dimedone, ammonium acetate, ethyl acetoacetate, and different substituted aldehydes were employed in successive processes to create polyhydroquinoline derivatives. High product efficiency, quick reaction time, room temperature functioning, and easy separation with a magnet suggest a potent catalyst. Interestingly, the catalyst retains 80 % of its original capability after four cycles. Additionally, the Cell-GG hydrogel/MgAl LDH/Fe3O4 nanocomposite was analyzed using several methods, including FT-IR, FE-SEM, EDX, XRD, VSM and TGA, to obtain insight into its chemical and physical characteristics.
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Affiliation(s)
- Ahmed Hjazi
- Department of Medical Laboratory, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia.
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3
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Zhang T, Shi XL, Hu Q, Gong H, Shi K, Li Z. Ultrahigh-Performance Fiber-Supported Iron-Based Ionic Liquid for Synthesizing 3,4-Dihydropyrimidin-2-(1 H)-ones in a Cleaner Manner. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:9579-9591. [PMID: 38657205 DOI: 10.1021/acs.langmuir.4c00332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Herein, a fiber-supported iron-based ionic liquid as a type of fibrous catalyst has been developed for the synthesis of bioactive 3,4-dihydropyrimidin-2-(1H)-ones (DHPMs) via three-component Biginelli reactions in a cleaner manner. The described fibrous catalyst was obtained from the commercially available polyetheretherketone (PEEK) fiber by postfunctionalization processes and was characterized and analyzed in detail by means of diversified technologies. Furthermore, the fiber-supported iron-based ionic liquids could mediate the classical three-component Biginelli reactions to proceed smoothly to gain a variety of substituted DHPMs with yields of up to 99%. The superior catalytic activities of the fibrous catalyst were ascribed to the quasi-homogeneous medium by ionic liquids generated in the surface layer of the PEEK fiber, which could afford an appropriate reaction zone and could further be available for the aggregation of substrates to facilitate the three-component reaction. Notably, the fibrous catalyst is available for recycling over 10 runs just by a pair of tweezers, and the operational procedure was capable of enlarging the catalytic system to the gram-scale without any performance degradation, which provided a cleaner manner to take advantage of the iron-based catalyst in organic synthesis with potential industrialization prospects.
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Affiliation(s)
- Tian Zhang
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454003, P. R. China
| | - Xian-Lei Shi
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454003, P. R. China
| | - Qianqian Hu
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454003, P. R. China
| | - Honghui Gong
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454003, P. R. China
| | - Keren Shi
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, P. R. China
| | - Zhenhua Li
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan 454003, P. R. China
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Song S, Wang Y, Yu F. Construction of 1,4-Dihydropyridines: The Evolution of C4 Source. Top Curr Chem (Cham) 2023; 381:30. [PMID: 37749452 DOI: 10.1007/s41061-023-00440-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 09/08/2023] [Indexed: 09/27/2023]
Abstract
The field of cascade cyclization for the construction of 1,4-dihydropyridines (1,4-DHPs) has been continuously expanding during the last decades because of their broad-spectrum biological and synthetic importance. To date, many methods have been developed, mainly including the Hantzsch reaction, Hantzsch-like reaction and newly developed cascade cyclization, in which various synthons have been successively developed as C4 sources of 1,4-DHPs. This review presents the cascade cyclization synthesis strategy for the construction of 1,4-DHPs according to various C4 sources from carbonyl compounds, alkenyl fragments, alcohols, aliphatic amines, glycines and other C4 sources.
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Affiliation(s)
- Siyu Song
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, People's Republic of China
| | - Yongchao Wang
- College of Vocational and Technical Education, Yunnan Normal University, Kunming, 650092, People's Republic of China.
| | - Fuchao Yu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, People's Republic of China.
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5
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Catalyst-free, one-pot expeditious synthesis of polyhydroquinolines and 2-amino-4H-chromenes. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04763-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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6
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Nosrati A, Amirnejat S, Javanshir S. Preparation, Antibacterial Activity, and Catalytic Application of Magnetic Graphene Oxide-Fucoidan in the Synthesis of 1,4-Dihydropyridines and Polyhydroquinolines. ChemistryOpen 2021; 10:1186-1196. [PMID: 34851041 PMCID: PMC8634770 DOI: 10.1002/open.202100221] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/25/2021] [Indexed: 12/20/2022] Open
Abstract
Polymer-coated magnetic nanoparticles are emerging as a useful tool for a variety of applications, including catalysis. In the present study, fucoidan-coated magnetic graphene oxide was synthesized using a natural sulfated polysaccharide. The prepared BaFe12 O19 @GO@Fu (Fu=fucoidan, GO=graphene oxide) was characterized using Fourier-transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray (EDX) analysis, vibrating sample magnetometry (VSM), thermogravimetric analysis (TGA), Raman spectroscopy, and X-ray diffraction (XRD). The catalytic proficiency of BaFe12 O19 @GO@Fu was investigated in the synthesis of 1,4-dihydropyridine and polyhydroquinoline derivatives. Excellent turnover numbers (TON) and turnover frequencies (TOF) (6330 and 25320 h-1 ) testify to the high efficiency of the catalyst. Moreover, the antimicrobial activity of BaFe12 O19 @GO@Fu was evaluated against Escherichia coli (E. coli), and Staphylococcus aureus (S. aureus) through the Agar well diffusion method, indicating that BaFe12 O19 @GO@Fu has antibacterial activity against S. aureus.
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Affiliation(s)
- Aliakbar Nosrati
- Heterocyclic Chemistry Research LaboratoryChemistry DepartmentIran University of Science and TechnologyTehran16846-13114Iran
| | - Sara Amirnejat
- Heterocyclic Chemistry Research LaboratoryChemistry DepartmentIran University of Science and TechnologyTehran16846-13114Iran
| | - Shahrzad Javanshir
- Heterocyclic Chemistry Research LaboratoryChemistry DepartmentIran University of Science and TechnologyTehran16846-13114Iran
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7
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Zhu G, Li Y. Urease: a highly efficient biocatalyst for synthesis of polyhydroquinolines and polyhydroacridines from the ammonia formed in situ. Mol Divers 2021; 25:2149-2159. [PMID: 32507980 DOI: 10.1007/s11030-020-10109-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 05/15/2020] [Indexed: 10/24/2022]
Abstract
Urease, a nickel-dependent enzyme, has a powerful catalytic activity to decompose urea into ammonia via hydrolysis reaction under mild condition. In the present work, urease was employed for the synthesis of two series of polyhydroquinoline and polyhydroacridine derivatives via one-pot condensation of the ammonia generated in situ from urea, aryl aldehydes, and dimedone or ethyl acetoacetate (i.e., Hantzsch-type reaction) in water under mild green condition. The valuable features of this enzymatic method are mild reaction conditions, short reaction times, wide substrate toleration, and high yield of products. The present work provides a novel enzymatic catalysis to synthesize polyhydroquinolines and polyhydroacridines and expands the application of urease in organic synthesis.
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Affiliation(s)
- Gan Zhu
- Department of Chemistry, Jinan University, Guangzhou, 510632, China
| | - Yiqun Li
- Department of Chemistry, Jinan University, Guangzhou, 510632, China.
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8
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Preparation and characterization of graphitic carbon nitride-supported L-arginine as a highly efficient and recyclable catalyst for the one-pot synthesis of condensation reactions. Sci Rep 2021; 11:19792. [PMID: 34611176 PMCID: PMC8492782 DOI: 10.1038/s41598-021-97360-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 08/25/2021] [Indexed: 12/20/2022] Open
Abstract
In this work, graphitic carbon nitride-supported l-arginine (g-C3N4@l-arginine) nanocatalyst was synthesized and evaluated using FT-IR, EDX, XRD, TGA, and FESEM analyses. The performance of the prepared nanocatalyst was examined in the synthesis of 1,4-dihydropyridine, 4H-chromene, and 2,3-dihydro quinazoline derivatives. The novel g-C3N4@l-arginine nanocatalyst showed high thermal stability, easy separation from reaction media, the capability to be used in various multicomponent reactions, and acceptable reusability.
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Sahiba N, Sethiya A, Soni J, Agarwal S. Acridine‐1,8‐diones: Synthesis and Biological Applications. ChemistrySelect 2021. [DOI: 10.1002/slct.202004536] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Nusrat Sahiba
- Synthetic Organic Chemistry Laboratory Department of Chemistry, MLSU Udaipur 313001 India
| | - Ayushi Sethiya
- Synthetic Organic Chemistry Laboratory Department of Chemistry, MLSU Udaipur 313001 India
| | - Jay Soni
- Synthetic Organic Chemistry Laboratory Department of Chemistry, MLSU Udaipur 313001 India
| | - Shikha Agarwal
- Synthetic Organic Chemistry Laboratory Department of Chemistry, MLSU Udaipur 313001 India
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Dhananjaya G, Raghunadh A, Kumar PM, Reddy SP, Murthy VN, Anna VR, Pal M. Urea as an Ammonia Surrogate in the Hantzsch’s Synthesis of Polyhydroquinolines / 1,4-dihydropyridines under Green Reaction Conditions. LETT ORG CHEM 2021. [DOI: 10.2174/1570178617999200713144504] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Synthesis of polyhydroquinolines via Hantzsch’s multicomponent reaction (MCR) involves
the use of a hygroscopic and moderately toxic ammonium salt as one of the key reactants. In our effort,
we have found urea as an effective ammonia surrogate when the MCR was performed in the presence
of sulphonic acid-functionalized Wang resin (Wang-OSO<sub>3</sub>H) as a polymeric and recoverable acidic
catalyst under green conditions. Urea is relatively less hygroscopic/toxic than the commonly used ammonium
salts used in this MCR. The methodology afforded a range of polyhydroquinolines in good
yields. Depending on the nature of reaction conditions employed, the MCR afforded Biginelli product
or 1,4-DHPs when the use of 1,3-diketone was omitted.
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Affiliation(s)
- G. Dhananjaya
- Technology Development Centre, Custom Pharmaceutical Services, Dr. Reddy’s Laboratories Ltd, Hyderabad 500049, Telangana,India
| | - Akula Raghunadh
- Technology Development Centre, Custom Pharmaceutical Services, Dr. Reddy’s Laboratories Ltd, Hyderabad 500049, Telangana,India
| | - P. Mahesh Kumar
- Technology Development Centre, Custom Pharmaceutical Services, Dr. Reddy’s Laboratories Ltd, Hyderabad 500049, Telangana,India
| | - S. Pulla Reddy
- Technology Development Centre, Custom Pharmaceutical Services, Dr. Reddy’s Laboratories Ltd, Hyderabad 500049, Telangana,India
| | - V. Narayana Murthy
- Technology Development Centre, Custom Pharmaceutical Services, Dr. Reddy’s Laboratories Ltd, Hyderabad 500049, Telangana,India
| | - Venkateswara Rao Anna
- Department of Chemistry, Koneru Lakshmaiah Education Foundation, Vaddeswaram, 522502, Guntur District, Andhra Pradesh,India
| | - Manojit Pal
- Dr Reddy’s Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046,India
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11
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Taheri-Ledari R, Esmaeili MS, Varzi Z, Eivazzadeh-Keihan R, Maleki A, Shalan AE. Facile route to synthesize Fe 3O 4@acacia-SO 3H nanocomposite as a heterogeneous magnetic system for catalytic applications. RSC Adv 2020; 10:40055-40067. [PMID: 35520839 PMCID: PMC9057486 DOI: 10.1039/d0ra07986c] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 10/19/2020] [Indexed: 11/21/2022] Open
Abstract
In this work, a novel catalytic system for facilitating the organic multicomponent synthesis of 9-phenyl hexahydroacridine pharmaceutical derivatives is reported. Concisely, this catalyst was constructed from acacia gum (gum arabic) as a natural polymeric base, iron oxide magnetic nanoparticles (Fe3O4 NPs), and sulfone functional groups on the surface as the main active catalytic sites. Herein, a convenient preparation method for this nanoscale composite is introduced. Then, essential characterization methods such as various spectroscopic analyses and electron microscopy (EM) were performed on the fabricated nano-powder. The thermal stability and magnetic properties were also precisely monitored via thermogravimetric analysis (TGA) and vibrating-sample magnetometry (VSM) methods. Then, the performance of the presented catalytic system (Fe3O4@acacia-SO3H) was further investigated in the referred organic reaction by using various derivatives of the components involved in the reaction. Optimization, mechanistic studies, and reusability screening were carried out for this efficient catalyst as well. Overall, remarkable reaction yields (94%) were obtained for the various produced derivatives of 9-phenyl hexahydroacridine in the indicated optimal conditions.
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Affiliation(s)
- Reza Taheri-Ledari
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology (IUST) Tehran 16846-13114 Iran +98 21 73021584 +98 21 77240640-50
| | - Mir Saeed Esmaeili
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology (IUST) Tehran 16846-13114 Iran +98 21 73021584 +98 21 77240640-50
| | - Zahra Varzi
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology (IUST) Tehran 16846-13114 Iran +98 21 73021584 +98 21 77240640-50
| | - Reza Eivazzadeh-Keihan
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology (IUST) Tehran 16846-13114 Iran +98 21 73021584 +98 21 77240640-50
| | - Ali Maleki
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology (IUST) Tehran 16846-13114 Iran +98 21 73021584 +98 21 77240640-50
| | - Ahmed Esmail Shalan
- Central Metallurgical Research and Development Institute (CMRDI) P. O. Box 87 Helwan Cairo 11421 Egypt
- BCMaterials, Basque Center for Materials, Applications and Nanostructures Martina Casiano, UPV/EHU Science Park, Barrio Sarriena s/n Leioa 48940 Spain
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12
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5-Sulphosalicylic acid: An expeditious organocatalyst for one-pot synthesis of 2H-indazolo[2,1-b]phthalazine-triones. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-3056-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
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13
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Venkateshaiah A, Padil VV, Nagalakshmaiah M, Waclawek S, Černík M, Varma RS. Microscopic Techniques for the Analysis of Micro and Nanostructures of Biopolymers and Their Derivatives. Polymers (Basel) 2020; 12:E512. [PMID: 32120773 PMCID: PMC7182842 DOI: 10.3390/polym12030512] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 02/21/2020] [Accepted: 02/24/2020] [Indexed: 02/07/2023] Open
Abstract
Natural biopolymers, a class of materials extracted from renewable sources, is garnering interest due to growing concerns over environmental safety; biopolymers have the advantage of biocompatibility and biodegradability, an imperative requirement. The synthesis of nanoparticles and nanofibers from biopolymers provides a green platform relative to the conventional methods that use hazardous chemicals. However, it is challenging to characterize these nanoparticles and fibers due to the variation in size, shape, and morphology. In order to evaluate these properties, microscopic techniques such as optical microscopy, atomic force microscopy (AFM), and transmission electron microscopy (TEM) are essential. With the advent of new biopolymer systems, it is necessary to obtain insights into the fundamental structures of these systems to determine their structural, physical, and morphological properties, which play a vital role in defining their performance and applications. Microscopic techniques perform a decisive role in revealing intricate details, which assists in the appraisal of microstructure, surface morphology, chemical composition, and interfacial properties. This review highlights the significance of various microscopic techniques incorporating the literature details that help characterize biopolymers and their derivatives.
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Affiliation(s)
- Abhilash Venkateshaiah
- Department of Nanomaterials in Natural Sciences, Institute for Nanomaterials, Advanced Technology and Innovation, Technical University of Liberec, 461 17 Liberec, Czech Republic; (A.V.); (S.W.)
| | - Vinod V.T. Padil
- Department of Nanomaterials in Natural Sciences, Institute for Nanomaterials, Advanced Technology and Innovation, Technical University of Liberec, 461 17 Liberec, Czech Republic; (A.V.); (S.W.)
| | - Malladi Nagalakshmaiah
- IMT Lille Douai, Department of Polymers and Composites Technology and Mechanical Engineering (TPCIM), 941 rue Charles Bourseul, CS10838, F-59508 Douai, France
| | - Stanisław Waclawek
- Department of Nanomaterials in Natural Sciences, Institute for Nanomaterials, Advanced Technology and Innovation, Technical University of Liberec, 461 17 Liberec, Czech Republic; (A.V.); (S.W.)
| | - Miroslav Černík
- Department of Nanomaterials in Natural Sciences, Institute for Nanomaterials, Advanced Technology and Innovation, Technical University of Liberec, 461 17 Liberec, Czech Republic; (A.V.); (S.W.)
| | - Rajender S. Varma
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacký University in Olomouc, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
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Asgharnasl S, Eivazzadeh-Keihan R, Radinekiyan F, Maleki A. Preparation of a novel magnetic bionanocomposite based on factionalized chitosan by creatine and its application in the synthesis of polyhydroquinoline, 1,4-dyhdropyridine and 1,8-dioxo-decahydroacridine derivatives. Int J Biol Macromol 2020; 144:29-46. [DOI: 10.1016/j.ijbiomac.2019.12.059] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 11/24/2019] [Accepted: 12/07/2019] [Indexed: 02/07/2023]
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15
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Amine-functionalized graphene oxide nanosheets (AFGONs): an efficient bifunctional catalyst for selective formation of 1,4-dihydropyridines, acridinediones and polyhydroquinolines. Mol Divers 2019; 24:283-294. [PMID: 30955149 DOI: 10.1007/s11030-019-09949-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 03/27/2019] [Indexed: 10/27/2022]
Abstract
We report here selective formation of functionalized 1,4-dihydropyridines (DHP), acridinediones and polyhydroquinolines in high yields using amine-functionalized graphene oxide nanosheets (AFGONs) as the bifunctional catalyst. The method overcomes the limitations of previous protocols affording a mixture of DHP and pyridine derivatives using graphene oxide as the catalyst. The mild reaction conditions are found compatible with a wide range of functional groups. It is presumed that a cooperative effect between the acidic and basic functionalities present in AFGONs may have exerted high catalytic efficiency as well as prevented further oxidation to pyridine derivatives. A plausible mechanism is proposed on the basis of some control experiments. The reactions can be scaled up conveniently, and the catalyst can be recycled for five consecutive runs without loss of its activity.
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Patil RV, Chavan JU, Dalal DS, Shinde VS, Beldar AG. Biginelli Reaction: Polymer Supported Catalytic Approaches. ACS COMBINATORIAL SCIENCE 2019; 21:105-148. [PMID: 30645098 DOI: 10.1021/acscombsci.8b00120] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The Biginelli product, dihydropyrimidinone (DHPM) core, and its derivatives are of immense biological importance. There are several methods reported as modifications to the original Biginelli reaction. Among them, many involve the use of different catalysts. Also, among the advancements that have been made to the Biginelli reaction, improvements in product yields, less hazardous reaction conditions, and simplified isolation of products from the reaction predominate. Recently, solid-phase synthetic protocols have attracted the research community for improved yields, simplified product purification, recyclability of the solid support, which forms a special economic approach for Biginelli reaction. The present Review highlights the role of polymer-supported catalysts in Biginelli reaction, which may involve organic, inorganic, or hybrid polymers as support for catalysts. A few of the schemes involve magnetically recoverable catalysts where work up provides green approach relative to traditional methods. Some research groups used polymer-catalyst nanocomposites and polymer-supported ionic liquids as catalyst. Solvent-free, an ultrasound or microwave-assisted Biginelli reactions with polymer-supported catalysts are also reported.
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Affiliation(s)
- Rajendra V. Patil
- Department of Chemistry, P.S.G.V.P.M’s SIP Arts, GBP Science and STKVS Commerce College, Shahada, Nandurbar-425409, India
| | - Jagdish U. Chavan
- Department of Chemistry, P.S.G.V.P.M’s SIP Arts, GBP Science and STKVS Commerce College, Shahada, Nandurbar-425409, India
| | - Dipak S. Dalal
- School of Chemical Sciences, North Maharashtra University, Jalgaon-425001, India
| | - Vaishali S. Shinde
- Garware Research Centre, Department of Chemistry, University of Pune, Pune-411 007, India
| | - Anil G. Beldar
- Department of Chemistry, P.S.G.V.P.M’s SIP Arts, GBP Science and STKVS Commerce College, Shahada, Nandurbar-425409, India
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Mayurachayakul P, Pluempanupat W, Srisuwannaket C, Chantarasriwong O. Four-component synthesis of polyhydroquinolines under catalyst- and solvent-free conventional heating conditions: mechanistic studies. RSC Adv 2017. [DOI: 10.1039/c7ra13120h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A convenient and environmentally friendly procedure for the synthesis of polyhydroquinolines via a one-pot four-component reaction has been developed. A detailed mechanistic study of the reaction is presented.
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Affiliation(s)
- Pipattra Mayurachayakul
- Organic Synthesis
- Electrochemistry & Natural Product Research Unit
- Department of Chemistry
- Faculty of Science
- King Mongkut's University of Technology Thonburi
| | - Wanchai Pluempanupat
- Department of Chemistry and Center of Excellence for Innovation in Chemistry
- Faculty of Science
- Special Research Unit for Advanced Magnetic Resonance
- Kasetsart University
- Bangkok 10900
| | - Choladda Srisuwannaket
- Organic Synthesis
- Electrochemistry & Natural Product Research Unit
- Department of Chemistry
- Faculty of Science
- King Mongkut's University of Technology Thonburi
| | - Oraphin Chantarasriwong
- Organic Synthesis
- Electrochemistry & Natural Product Research Unit
- Department of Chemistry
- Faculty of Science
- King Mongkut's University of Technology Thonburi
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Zhang Q, Ma XM, Wei HX, Zhao X, Luo J. Covalently anchored tertiary amine functionalized ionic liquid on silica coated nano-Fe3O4 as a novel, efficient and magnetically recoverable catalyst for the unsymmetrical Hantzsch reaction and Knoevenagel condensation. RSC Adv 2017. [DOI: 10.1039/c7ra10692k] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel MNP-supported basic IL catalyst was prepared and used as a magnetically recoverable catalyst for Hantzsch and Knoevenagel condensation.
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Affiliation(s)
- Qiang Zhang
- Jiangsu Key Laboratory of Environmental Functional Materials
- School of Chemistry, Biology and Material Engineering
- Suzhou University of Science and Technology
- Suzhou 215009
- China
| | - Xiao-Ming Ma
- School of Pharmaceutical Engineering & Life Science
- Changzhou University
- Changzhou 213164
- China
| | - Huai-Xin Wei
- Jiangsu Key Laboratory of Environmental Functional Materials
- School of Chemistry, Biology and Material Engineering
- Suzhou University of Science and Technology
- Suzhou 215009
- China
| | - Xin Zhao
- Jiangsu Key Laboratory of Environmental Functional Materials
- School of Chemistry, Biology and Material Engineering
- Suzhou University of Science and Technology
- Suzhou 215009
- China
| | - Jun Luo
- School of Chemical Engineering
- Nanjing University of Science & Technology
- Nanjing 210094
- China
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