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Borah B, Veeranagaiah NS, Sharma S, Patat M, Prasad MS, Pallepogu R, Chowhan LR. Stereoselective synthesis of CF 3-containing spirocyclic-oxindoles using N-2,2,2-trifluoroethylisatin ketimines: an update. RSC Adv 2023; 13:7063-7075. [PMID: 36875873 PMCID: PMC9977426 DOI: 10.1039/d3ra00017f] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 02/15/2023] [Indexed: 03/05/2023] Open
Abstract
The introduction of fluorine-containing groups into organic molecules either changes or improves the characteristics of the target compounds. On the other hand, spirocyclic-oxindoles featuring C-3 functionalized sp3-hybridized carbon atoms of three-dimensional orthogonally shaped molecules were well recognized in the core structure of varied natural products and synthetic pharmaceutical targets. Consequently, the construction of spirooxindoles by an elegant synthetic approach with efficient stereocontrol has received tremendous interest over the past decades. In this context of the synergic combination of the features associated with fluorine-containing compounds and the synthetic and medicinal efficiency associated with spirooxindoles, the stereodivergent installation of CF3 groups embedded with spirooxindoles is of increasing academic and scientific interest. This mini-review article is dedicated to demonstrating a critical overview of the recent stereoselective synthesis of spirocyclic-oxindoles featuring trifluoromethyl groups by employing the reactivity of N-2,2,2-trifluoroethylisatin ketimines as an efficient and easily prepared synthon, and covers the literature reports from 2020 to date. Besides exploring the advancements accomplished in this area, we also investigate the limitations associated with reaction discovery, mechanistic rationalization, and future applications.
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Affiliation(s)
- Biplob Borah
- School of Applied Material Sciences, Centre for Applied Chemistry, Central University of Gujarat Gandhinagar-382030 India
| | - Naveena S Veeranagaiah
- Department of Chemistry, Central University of Karnataka, Kalaburagi Karnataka-585367 India
| | - Samrita Sharma
- School of Applied Material Sciences, Centre for Applied Chemistry, Central University of Gujarat Gandhinagar-382030 India
| | - Mihir Patat
- School of Applied Material Sciences, Centre for Applied Chemistry, Central University of Gujarat Gandhinagar-382030 India
| | - Madavi S Prasad
- Department of Chemistry, Asymmetric Synthesis and Catalysis Laboratory, Central University of Tamil Nadu (CUTN) Tiruvarur 610 005 India
| | - Raghavaiah Pallepogu
- Department of Chemistry, Central University of Karnataka, Kalaburagi Karnataka-585367 India
| | - L Raju Chowhan
- School of Applied Material Sciences, Centre for Applied Chemistry, Central University of Gujarat Gandhinagar-382030 India
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2
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Borah B, Patat M, Singh V, Sivaprakash M, Prasad MS, Chowhan LR. Visible-light-induced organophotocatalytic and singlet oxygen-initiated domino construction of 1,4-dihydropyridines, C-3 functionalized spiro[indoline-3,4'-pyridines] and C-11 functionalized spiro[indeno-[1,2- b]quinoxaline-11,4'-pyridines]. Org Biomol Chem 2023; 21:1518-1530. [PMID: 36695344 DOI: 10.1039/d3ob00043e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A highly efficient pot, atom, and step economical method for the construction of pharmacologically potent structurally functionalized 1,4-dihydropyridines, quaternary centered C-3 functionalized spiro[indoline-3,4'-pyridines], and C-11 functionalized spiro[indeno[1,2-b]quinoxaline-11,4'-pyridines] via rose bengal photoredox catalysis under blue LED irradiation in an aqueous medium at room temperature has been developed. The products were isolated in excellent yields within a short reaction time for a variety of functional groups under transition metal- and ligand-free energy-efficient conditions in a green solvent system with high reaction mass efficiency and process mass intensity, which are the key advantages of the current work.
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Affiliation(s)
- Biplob Borah
- School of Applied Material Sciences, Centre for Applied Chemistry, Central University of Gujarat, Gandhinagar-382030, India.
| | - Mihir Patat
- School of Applied Material Sciences, Centre for Applied Chemistry, Central University of Gujarat, Gandhinagar-382030, India.
| | - Vipin Singh
- School of Applied Material Sciences, Centre for Applied Chemistry, Central University of Gujarat, Gandhinagar-382030, India.
| | - Murugesan Sivaprakash
- Asymmetric Synthesis and Catalysis Laboratory, Department of Chemistry, Central University of Tamil Nadu (CUTN), Tiruvarur-610 005, India
| | - Madavi S Prasad
- Asymmetric Synthesis and Catalysis Laboratory, Department of Chemistry, Central University of Tamil Nadu (CUTN), Tiruvarur-610 005, India
| | - L Raju Chowhan
- School of Applied Material Sciences, Centre for Applied Chemistry, Central University of Gujarat, Gandhinagar-382030, India.
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3
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Borah B, Swain S, Patat M, Kumar B, Prajapat KK, Biswas R, Vasantha R, Chowhan LR. Brønsted acid catalyzed mechanochemical domino multicomponent reactions by employing liquid assisted grindstone chemistry. Sci Rep 2023; 13:1386. [PMID: 36697475 PMCID: PMC9876939 DOI: 10.1038/s41598-023-27948-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 01/10/2023] [Indexed: 01/27/2023] Open
Abstract
Here, we have demonstrated a metal-free energy-efficient mechanochemical approach for expedient access to a diverse set of 2-amino-3-cyano-aryl/heteroaryl-4H-chromenes, tetrahydrospiro[chromene-3,4'-indoline], 2,2'-aryl/heteroarylmethylene-bis(3-hydroxy-5,5-dimethylcyclohex-2-enone) as well as tetrahydro-1H-xanthen-1-one by employing the reactivity of 5,5-dimethylcyclohexane-1,3-dione/cyclohexane-1,3-dione with TsOH⋅H2O as Brønsted acid catalyst under water-assisted grinding conditions at ambient temperature. The ability to accomplish multiple C-C, C=C, C-O, and C-N bonds from readily available starting materials via a domino multicomponent strategy in the absence of metal-catalyst as well as volatile organic solvents with an immediate reduction in the cost of the transformation without necessitates complex operational procedures, features the significant highlights of this approach. The excellent yield of the products, broad functional group tolerances, easy set-up, column-free, scalable synthesis with ultralow catalyst loading, short reaction time, waste-free, ligand-free, and toxic-free, are other notable advantages of this approach. The greenness and sustainability of the protocol were also established by demonstrating several green metrics parameters.
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Affiliation(s)
- Biplob Borah
- grid.448759.30000 0004 1764 7951School of Applied Material Sciences, Centre for Applied Chemistry, Sector-30, Central University of Gujarat, Gandhinagar, 382030 India
| | - Sidhartha Swain
- grid.448759.30000 0004 1764 7951School of Applied Material Sciences, Centre for Applied Chemistry, Sector-30, Central University of Gujarat, Gandhinagar, 382030 India
| | - Mihir Patat
- grid.448759.30000 0004 1764 7951School of Applied Material Sciences, Centre for Applied Chemistry, Sector-30, Central University of Gujarat, Gandhinagar, 382030 India
| | - Bhupender Kumar
- grid.448759.30000 0004 1764 7951School of Applied Material Sciences, Centre for Applied Chemistry, Sector-30, Central University of Gujarat, Gandhinagar, 382030 India
| | - Ketan Kumar Prajapat
- grid.448759.30000 0004 1764 7951School of Applied Material Sciences, Centre for Applied Chemistry, Sector-30, Central University of Gujarat, Gandhinagar, 382030 India
| | - Rathindranath Biswas
- grid.428366.d0000 0004 1773 9952Department of Chemistry, Central University of Punjab, Bathinda, 151401 India
| | - R. Vasantha
- grid.448759.30000 0004 1764 7951School of Applied Material Sciences, Centre for Applied Chemistry, Sector-30, Central University of Gujarat, Gandhinagar, 382030 India
| | - L. Raju Chowhan
- grid.448759.30000 0004 1764 7951School of Applied Material Sciences, Centre for Applied Chemistry, Sector-30, Central University of Gujarat, Gandhinagar, 382030 India
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Prasad MS, Bharani S, Sharief SM, Ravi M, Sivaprakash M, Borah B, Chowhan LR. DABCO-promoted highly diastereo- and regioselective construction of C-3 functionalized spirooxindoles via [3 + 2] cycloaddition of 2-aryl/heteroarylidene-1 H-indene-1,3(2 H)-diones with N-2,2,2-trifluoroethylisatin ketimines at ambient conditions. RSC Adv 2022; 12:34941-34945. [PMID: 36540219 PMCID: PMC9724611 DOI: 10.1039/d2ra07141j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 12/01/2022] [Indexed: 02/07/2024] Open
Abstract
The application of 2-aryl/heteroarylidene-1H-indene-1,3(2H)-dione as an activated olefin source in the DABCO-catalyzed [3 + 2] cycloaddition with N-2,2,2-trifluoroethylisatin ketimines has been disclosed. This highly efficient 1,3-dipolar cycloaddition reaction offered a variety of trifluoro methyl group bearing spiro-pyrrolidine linked oxindoles with four consecutive stereocentres in good to excellent yield and excellent diastereoselectivity. The synthetic practicality of the protocol was established by demonstrating the enantioselective construction of spiro-pyrrolidine-oxindoles with two vicinal spiro-quaternary chiral centres in good yield excellent enantioselectivity (>90% ee) by using ultralow loading of quinine as the catalyst at room temperature.
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Affiliation(s)
- Madavi S Prasad
- Asymmetric Synthesis and Catalysis Laboratory, Department of Chemistry, Central University of Tamil Nadu (CUTN) Tiruvarur-610 005 India
| | - Sankar Bharani
- Asymmetric Synthesis and Catalysis Laboratory, Department of Chemistry, Central University of Tamil Nadu (CUTN) Tiruvarur-610 005 India
| | - Syed Mastan Sharief
- Asymmetric Synthesis and Catalysis Laboratory, Department of Chemistry, Central University of Tamil Nadu (CUTN) Tiruvarur-610 005 India
| | - Mudavath Ravi
- Asymmetric Synthesis and Catalysis Laboratory, Department of Chemistry, Central University of Tamil Nadu (CUTN) Tiruvarur-610 005 India
| | - Murugesan Sivaprakash
- Asymmetric Synthesis and Catalysis Laboratory, Department of Chemistry, Central University of Tamil Nadu (CUTN) Tiruvarur-610 005 India
| | - Biplob Borah
- School of Applied Material Sciences, Centre for Applied Chemistry, Central University of Gujarat Sector-30 Gandhinagar-382030 Gujarat India
| | - L Raju Chowhan
- School of Applied Material Sciences, Centre for Applied Chemistry, Central University of Gujarat Sector-30 Gandhinagar-382030 Gujarat India
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5
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Sadeghian Z, Bayat M. Green synthesis of isatin-based compounds. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04817-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Borah B, Raju Chowhan L. Recent updates on the stereoselective synthesis of structurally functionalized spiro-oxindoles mediated by isatin N, N´‑cyclic azomethine imine 1, 3-dipoles. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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7
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Borah B, Bora J, Ramesh P, Chowhan LR. Sonochemistry in an organocatalytic domino reaction: an expedient multicomponent access to structurally functionalized dihydropyrano[3,2- b]pyrans, spiro-pyrano[3,2- b]pyrans, and spiro-indenoquinoxaline-pyranopyrans under ambient conditions. RSC Adv 2022; 12:12843-12857. [PMID: 35496344 PMCID: PMC9048984 DOI: 10.1039/d2ra01917e] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 04/19/2022] [Indexed: 12/16/2022] Open
Abstract
A highly convenient and sustainable one-pot approach for the diversely-oriented synthesis of a variety of medicinally privileged amino-substituted 4,8-dihydropyrano[3,2-b]pyran-3-carbonitriles, and spiro[indoline-3,4'-pyrano[3,2-b]pyran]-3-carbonitrile/carboxylate derivatives on the basis of a domino three-component reaction of readily available carbonyl compounds including aryl aldehydes or isatins, active methylene compounds, and kojic acid as a Michael donor using secondary amine catalyst l-proline under ultrasound irradiation in aqueous ethanolic solution at ambient temperature has been developed. This methodology can involve the assembly of C-C, C[double bond, length as m-dash]C, C-O, C-N bonds via a one-pot operation, and following this protocol, a series of novel amino-substituted spiro[indeno[1,2-b]quinoxaline-11,4-pyrano[3,2-b]pyran]-3-carbonitrile/carboxylates have been synthesized. The practical utility of this method was found to be very efficient for scale-up reaction and other useful transformations. The methodology provides significant advantages including mild reaction conditions, energy-efficiency, short reaction time, fast reaction, simple work-up procedure, broad functional group tolerances, utilization of reusable catalyst, green solvent system, being metal-free, ligand-free, waste-free, inexpensive, etc. Excellent chemical yields have been achieved without using column chromatography. To address the issues of green and more sustainable chemistry, several metrics including Atom Economy (AE), Reaction Mass Efficiency (RME), Atom efficiency, E-factor, Process Mass Intensity (PMI), and Carbon Efficiency (CE) have been quantified for the present methodology that indicates the greenness of the present protocol.
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Affiliation(s)
- Biplob Borah
- School of Applied Material Sciences, Centre for Applied Chemistry, Central University of Gujarat Sector-30 Gandhinagar-382030 Gujarat India
| | - Jahnu Bora
- School of Applied Material Sciences, Centre for Applied Chemistry, Central University of Gujarat Sector-30 Gandhinagar-382030 Gujarat India
| | - Pambala Ramesh
- CSIR-Indian Institute of Chemical Technology Hyderabad-50007 India
| | - L Raju Chowhan
- School of Applied Material Sciences, Centre for Applied Chemistry, Central University of Gujarat Sector-30 Gandhinagar-382030 Gujarat India
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8
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Borah B, Dwivedi KD, Kumar B, Chowhan LR. Recent advances in the microwave- and ultrasound-assisted green synthesis of coumarin-heterocycles. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2021.103654] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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9
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Singh V, Lakshmi SR, Chowhan LR. Graphene Oxide Catalyzed Synthesis of Fused Chromeno Spiro Pyrrolidine Oxindoles via Tandem Decarboxylation and 1,3-Dipolar Cycloaddition. Front Chem 2022; 9:759436. [PMID: 35087791 PMCID: PMC8787336 DOI: 10.3389/fchem.2021.759436] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 11/22/2021] [Indexed: 11/13/2022] Open
Abstract
A short and efficient multicomponent sequence for synthesizing fused novel polyheterocyclic chromeno spiro-pyrrolidine oxindoles via 1,3-dipolar cycloaddition reaction mediated by reactive azomethine ylides catalyzed by the Graphene Oxide (GO) is reported herein. This approach was utilized for synthesizing fused polyheterocyclic spiro-pyrrolothiazole and spiro-pyrrole oxindoles with yields ranging from good to excellent. A heterogeneous GO catalyst with an ultra-low catalytic loading of 0.05 wt% could proficiently catalyze the reaction without the formation of any side products and can also be visualized by the formation of solid mass in the reaction flask. The methodology is green in nature and the products were isolated by simple filtration without the use of any chromatographic techniques.
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Affiliation(s)
| | | | - L. Raju Chowhan
- Centre for Applied Chemistry, Central University of Gujarat, Gandhinagar, India
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10
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Gonsalves OS, Ambre JP, Nemade PR. Improving the yield of graphene oxide-catalysed N-heterocyclization of amines through fed batch mode. NEW J CHEM 2022. [DOI: 10.1039/d2nj03830g] [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
The use of graphene oxide, a metal-free, heterogeneous carbocatalyst for a facile, efficient, and simple protocol for N-heterocyclization of aromatic amines with dihaloalkane to give azacycloalkanes and isolindolines in fed batch strategy was studied.
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Affiliation(s)
- Olviya S. Gonsalves
- Department of Chemical Engineering, Institute of Chemical Technology, Mumbai-400 019, India
| | - Jyoti P. Ambre
- Department of Chemical Engineering, Institute of Chemical Technology, Mumbai-400 019, India
| | - Parag R. Nemade
- Department of Chemical Engineering, Institute of Chemical Technology, Mumbai-400 019, India
- Institute of Chemical Technology, Marathwada Campus, Jalna-431 203, India
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11
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Kyndiah L, Sarkar FK, Gupta A, Pal AK. Efficient metal-free green syntheses of 4 H-chromenes and 3-amino alkylated indoles using a reusable graphite oxide carbocatalyst under aqueous and solvent-free reaction conditions. NEW J CHEM 2022. [DOI: 10.1039/d2nj00756h] [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
Graphite oxide was employed as a reusable catalyst for the synthesis of 4H-chromenes and 3-amino alkylated indoles in aqueous and solvent-free reaction conditions.
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Affiliation(s)
- Lenida Kyndiah
- Department of Chemistry, Centre for Advanced Studies, North-Eastern Hill University, Shillong-793022, Meghalaya, India
| | - Fillip Kumar Sarkar
- Department of Chemistry, Centre for Advanced Studies, North-Eastern Hill University, Shillong-793022, Meghalaya, India
| | - Ajay Gupta
- Department of Chemistry, Centre for Advanced Studies, North-Eastern Hill University, Shillong-793022, Meghalaya, India
| | - Amarta Kumar Pal
- Department of Chemistry, Centre for Advanced Studies, North-Eastern Hill University, Shillong-793022, Meghalaya, India
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12
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Borah B, Chowhan LR. Recent advances in the transition-metal-free synthesis of quinoxalines. RSC Adv 2021; 11:37325-37353. [PMID: 35496411 PMCID: PMC9043781 DOI: 10.1039/d1ra06942j] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 10/30/2021] [Indexed: 01/04/2023] Open
Abstract
Quinoxalines, also known as benzo[a]pyrazines, constitute an important class of nitrogen-containing heterocyclic compounds as a result of their widespread prevalence in natural products, biologically active synthetic drug candidates, and optoelectronic materials. Owing to their importance and chemists' ever-increasing imagination of new transformations of these products, tremendous efforts have been dedicated to finding more efficient approaches toward the synthesis of quinoxaline rings. The last decades have witnessed a marvellous outburst in modifying organic synthetic methods to create them sustainable for the betterment of our environment. The exploitation of transition-metal-free catalysis in organic synthesis leads to a new frontier to access biologically active heterocycles and provides an alternative method from the perspective of green and sustainable chemistry. Despite notable developments achieved in transition-metal catalyzed synthesis, the high cost involved in the preparation of the catalyst, toxicity, and difficulty in removing it from the final products constitute disadvantageous effects on the atom economy and eco-friendly nature of the transformation. In this review article, we have summarized the recent progress achieved in the synthesis of quinoxalines under transition-metal-free conditions and cover the reports from 2015 to date. This aspect is presented alongside the mechanistic rationalization and limitations of the reaction methodologies. The scopes of future developments are also highlighted.
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Affiliation(s)
- Biplob Borah
- School of Applied Material Sciences, Centre for Applied Chemistry, Central University of Gujarat Gandhinagar-382030 India
| | - L Raju Chowhan
- School of Applied Material Sciences, Centre for Applied Chemistry, Central University of Gujarat Gandhinagar-382030 India
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Borah B, Dhar Dwivedi K, Chowhan LR. 4‐Hydroxycoumarin: A Versatile Substrate for Transition‐metal‐free Multicomponent Synthesis of Bioactive Heterocycles. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100550] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Biplob Borah
- School of Applied Material Sciences Centre for Applied Chemistry Central University of Gujarat Sector-30 Gandhinagar 382030 India
| | - Kartikey Dhar Dwivedi
- School of Applied Material Sciences Centre for Applied Chemistry Central University of Gujarat Sector-30 Gandhinagar 382030 India
| | - L. Raju Chowhan
- School of Applied Material Sciences Centre for Applied Chemistry Central University of Gujarat Sector-30 Gandhinagar 382030 India
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14
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Borah B, Dwivedi KD, Chowhan LR. Recent Advances in Metal‐ and Organocatalyzed Asymmetric Functionalization of Pyrroles. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100427] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Biplob Borah
- School of Applied Material Sciences Centre for Applied Chemistry Central University of Gujarat Sector-30 Gandhinagar 382030 India
| | - Kartikey Dhar Dwivedi
- School of Applied Material Sciences Centre for Applied Chemistry Central University of Gujarat Sector-30 Gandhinagar 382030 India
| | - L. Raju Chowhan
- School of Applied Material Sciences Centre for Applied Chemistry Central University of Gujarat Sector-30 Gandhinagar 382030 India
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15
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Thadem N, Rajesh M, Das S. Activator free diastereoselective 1,3-dipolar cycloaddition: a quick access to coumarin based spiro multi heterocyclic adducts. RSC Adv 2021; 11:29934-29938. [PMID: 35480285 PMCID: PMC9040763 DOI: 10.1039/d1ra05070b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 09/02/2021] [Indexed: 01/26/2023] Open
Abstract
A formal diastereoselective 1,3-dipolar cycloaddition of azomethine ylide and coumarin derivatives to construct coumarin based spiro multi heterocyclics has been described. The in situ generation of azo-ylide was achieved for various heterocyclic carbonyls (indenoquinoxaline and isatin). This transformation is also suitable for maleimide dipolarophiles for the synthesis of hydro-maleimide derivatives. These decarboxylative annulations neither required any catalyst nor any activator. Further the pure products were isolated by filtration from the reaction mixture after the reaction under ambient conditions. A formal diastereoselective decarboxylative 1,3-dipolar cycloaddition of azomethine ylide and coumarins is achieved for the synthesis of spiro multi heterocyclic adducts without engaging any catalyst or activator in good yields.![]()
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Affiliation(s)
- Nagender Thadem
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT) Hyderabad 500007 India +91 40 2719 1887.,Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Manda Rajesh
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT) Hyderabad 500007 India +91 40 2719 1887
| | - Saibal Das
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT) Hyderabad 500007 India +91 40 2719 1887.,Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
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16
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Borah B, Dwivedi KD, Chowhan LR. Review on Synthesis and Medicinal Application of Dihydropyrano[3,2-b]Pyrans and Spiro-Pyrano[3,2-b]Pyrans by Employing the Reactivity of 5-Hydroxy-2-(Hydroxymethyl)-4H-Pyran-4-One. Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2021.1962923] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Biplob Borah
- School of Applied Material Sciences, Central University of Gujarat, Gandhinagar, India
| | - Kartikey Dhar Dwivedi
- School of Applied Material Sciences, Central University of Gujarat, Gandhinagar, India
| | - L. Raju Chowhan
- School of Applied Material Sciences, Central University of Gujarat, Gandhinagar, India
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17
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Nagaraju S, Sathish K, Kashinath D. Applications of 3,5‐Dialkyl‐4‐nitroisoxazoles and Their Derivatives in Organic Synthesis
#. ChemistrySelect 2021. [DOI: 10.1002/slct.202101719] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sakkani Nagaraju
- Department of Chemistry National Institute of Technology Warangal-506 004 India 2677
| | - Kota Sathish
- Department of Chemistry National Institute of Technology Warangal-506 004 India 2677
| | - Dhurke Kashinath
- Department of Chemistry National Institute of Technology Warangal-506 004 India 2677
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18
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Neri G, Fazio E, Nostro A, Mineo PG, Scala A, Rescifina A, Piperno A. Shedding Light on the Chemistry and the Properties of Münchnone Functionalized Graphene. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1629. [PMID: 34206184 PMCID: PMC8307402 DOI: 10.3390/nano11071629] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/06/2021] [Accepted: 06/18/2021] [Indexed: 12/23/2022]
Abstract
Münchnones are mesoionic oxazolium 5-oxides with azomethine ylide characteristics that provide pyrrole derivatives by a 1,3-dipolar cycloaddition (1,3-DC) reaction with acetylenic dipolarophiles. Their reactivity was widely exploited for the synthesis of small molecules, but it was not yet investigated for the functionalization of graphene-based materials. Herein, we report our results on the preparation of münchnone functionalized graphene via cycloaddition reactions, followed by the spontaneous loss of carbon dioxide and its further chemical modification to silver/nisin nanocomposites to confer biological properties. A direct functionalization of graphite flakes into few-layers graphene decorated with pyrrole rings on the layer edge was achieved. The success of functionalization was confirmed by micro-Raman and X-ray photoelectron spectroscopies, scanning transmission electron microscopy, and thermogravimetric analysis. The 1,3-DC reactions of münchnone dipole with graphene have been investigated using density functional theory to model graphene. Finally, we explored the reactivity and the processability of münchnone functionalized graphene to produce enriched nano biomaterials endowed with antimicrobial properties.
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Affiliation(s)
- Giulia Neri
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (G.N.); (A.N.); (A.S.)
| | - Enza Fazio
- Department of Mathematical and Computational Sciences, Physics Science and Earth Science, University of Messina, V.le F. Stagno d’Alcontres 31, I-98166 Messina, Italy
| | - Antonia Nostro
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (G.N.); (A.N.); (A.S.)
| | - Placido Giuseppe Mineo
- Department of Chemical Sciences, University of Catania, V.le A. Doria, 95125 Catania, Italy;
| | - Angela Scala
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (G.N.); (A.N.); (A.S.)
| | - Antonio Rescifina
- Department of Drug and Health Sciences, University of Catania, V.le A. Doria, 95125 Catania, Italy
| | - Anna Piperno
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, V.le F. Stagno d’Alcontres 31, 98166 Messina, Italy; (G.N.); (A.N.); (A.S.)
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Borah B, Dwivedi KD, Chowhan LR. Recent approaches in the organocatalytic synthesis of pyrroles. RSC Adv 2021; 11:13585-13601. [PMID: 35423869 PMCID: PMC8697526 DOI: 10.1039/d1ra01690c] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 03/24/2021] [Indexed: 12/20/2022] Open
Abstract
Organocatalysis has emerged as one of the most important tools for the synthesis of diverse structural scaffolds, and has become one of the most important hot topics of current research. Construction of the pyrrole ring has gained much attention from the last few decades due to its remarkable biological activities, pharmaceutical application, intermediate in the synthesis of many natural products, and material science application. With access to these 5-membered aza heterocycles, organocatalytic approaches have provided a new alternative from the perspective of synthetic efficiency, as well as from the green chemistry point of view, and a vast array of synthetic procedures has been developed. Enlightened by the significance of this growing research area, we aim to describe the recent organocatalytic approaches developed for the construction of pyrroles, and organized them based on substrates employed.
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Affiliation(s)
- Biplob Borah
- School of Applied Material Sciences, Centre for Applied Chemistry, Central University of Gujarat Gandhinagar 382030 India
| | - Kartikey Dhar Dwivedi
- School of Applied Material Sciences, Centre for Applied Chemistry, Central University of Gujarat Gandhinagar 382030 India
| | - L Raju Chowhan
- School of Applied Material Sciences, Centre for Applied Chemistry, Central University of Gujarat Gandhinagar 382030 India
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20
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Zorba LP, Vougioukalakis GC. The Ketone-Amine-Alkyne (KA2) coupling reaction: Transition metal-catalyzed synthesis of quaternary propargylamines. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213603] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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21
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Liao J, Dong J, Xu J, Wang W, Wu Y, Hou Y, Guo H. Phosphine-Catalyzed [3 + 2] Annulation of Morita–Baylis–Hillman Carbonates with Isoxazole-Based Alkenes. J Org Chem 2021; 86:2090-2099. [DOI: 10.1021/acs.joc.0c01948] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jianning Liao
- Department of Chemistry, China Agricultural University, Beijing 100193, China
| | - Jipan Dong
- Department of Chemistry, China Agricultural University, Beijing 100193, China
| | - Jiaqing Xu
- Department of Chemistry, China Agricultural University, Beijing 100193, China
| | - Wei Wang
- College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Yongjun Wu
- College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Yuxia Hou
- Department of Chemistry, China Agricultural University, Beijing 100193, China
| | - Hongchao Guo
- Department of Chemistry, China Agricultural University, Beijing 100193, China
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22
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Acetyl oxime/azirine 1, 3-dipole and strategy for the regioselective synthesis of polysubstituted pyrroles via [3 + 2] cycloaddition with alkyne utilizing Fe2O3@cellulose catalyst. RESULTS IN CHEMISTRY 2021. [DOI: 10.1016/j.rechem.2021.100201] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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23
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Singh R, Bhardwaj D, Saini MR. Recent advancement in the synthesis of diverse spiro-indeno[1,2-b]quinoxalines: a review. RSC Adv 2021. [DOI: 10.1039/d0ra09130h] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The nitrogen-containing indeno[1,2-b]quinoxaline ring is a privileged structurally fused active system and has notable applications in various fields of chemistry.
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Affiliation(s)
- Ruby Singh
- Department of Chemistry
- School of Basic Sciences
- Jaipur National University
- Jaipur
- India
| | - Diksha Bhardwaj
- Department of Chemistry
- School of Basic Sciences
- Jaipur National University
- Jaipur
- India
| | - Munna Ram Saini
- Department of Chemistry
- School of Basic Sciences
- Jaipur National University
- Jaipur
- India
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24
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Graphene oxide anchored with sulfonic acid-functionalized glycerin: production, characterization and catalytic performance for the synthesis of N,N′-alkylidene bisamides. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04197-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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25
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Dwivedi KD, Borah B, Chowhan LR. Ligand Free One-Pot Synthesis of Pyrano[2,3- c]pyrazoles in Water Extract of Banana Peel (WEB): A Green Chemistry Approach. Front Chem 2020; 7:944. [PMID: 32039156 PMCID: PMC6987396 DOI: 10.3389/fchem.2019.00944] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 12/31/2019] [Indexed: 01/11/2023] Open
Abstract
Here, we have developed a novel, simple, efficient, and green protocol for one-pot synthesis of pyrano[2,3-c]pyrazole using arylidene malononitrile and pyrazolone in Water Extract of Banana Peels (WEB) as a reaction medium at room temperature (r.t.). This is a green and general synthetic protocol without utilization of any toxic organic solvent, ligand, base that could be applicable for the wide substrate scope in good to excellent yields. This protocol has various advantages such as fast reactions, eco-friendly reaction conditions, easy isolation of the product without using column chromatography. The green chemistry matrices calculation like atom economy reaction, environmental factor, as well as process mass intensity indicates the eco-friendly nature of the protocol.
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Affiliation(s)
| | | | - L. Raju Chowhan
- Centre for Applied Chemistry, Central University of Gujarat, Gandhinagar, India
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26
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Lakshmi SR, Singh V, Chowhan LR. Highly efficient catalyst-free domino conjugate addition, decarboxylation and esterification/amidation of coumarin carboxylic acid/esters with pyrazolones: a green chemistry approach. RSC Adv 2020; 10:13866-13871. [PMID: 35492966 PMCID: PMC9051535 DOI: 10.1039/d0ra01906b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 03/13/2020] [Indexed: 01/29/2023] Open
Abstract
Tandem conjugate addition, decarboxylation and esterification/amidation of coumarin 3-carboxylic acid derivatives with pyrazolones have been developed.
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Affiliation(s)
- Shanta Raj Lakshmi
- Centre for Applied Chemistry
- Central University of Gujarat
- Gandhinagar
- India
| | - Vipin Singh
- Centre for Applied Chemistry
- Central University of Gujarat
- Gandhinagar
- India
| | - L. Raju Chowhan
- Centre for Applied Chemistry
- Central University of Gujarat
- Gandhinagar
- India
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27
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Ramesh P, Reddy MS, Madduluri VR, Chowan LR, Kumar NS. Cu doped ZIF Catalyzed Synthesis of Propargyl Amines with Quaternary Carbon Center Under Solvent Free Conditions. ChemistrySelect 2019. [DOI: 10.1002/slct.201901729] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Pambala Ramesh
- Centre for Applied ChemistryCentral University of Gujarat Sector 30 Gandhinagar, GUJ- 382030
| | - Marri Sameer Reddy
- Department of ChemistryRajiv Gandhi University of Knowledge Technologies Srikakulam- 532402 Andhrapradesh India
| | - Venkata Rao Madduluri
- Catalysis & Fine Chemicals DivisionCSIR-Indian Institute of Chemical Technology Hyderabad India- 500007
| | - L. Raju Chowan
- Centre for Applied ChemistryCentral University of Gujarat Sector 30 Gandhinagar, GUJ- 382030
| | - Nandigama Satish Kumar
- Department of ChemistryRajiv Gandhi University of Knowledge Technologies Srikakulam- 532402 Andhrapradesh India
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28
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Gupta S, Khurana JM. Catalyst‐Free One‐Pot Regioselective Synthesis of Spiropyrrolizines Using 1,3‐Dipolar Cycloaddition Reaction. ChemistrySelect 2019. [DOI: 10.1002/slct.201901531] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Shruti Gupta
- Department of ChemistryUniversity of Delhi New Delhi - 110007 India
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29
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Lledó D, Grindlay G, Sansano JM. 1,3-Dipolar Cycloadditions of Stabilized Azomethine Ylides and Electrophilic Alkenes Mediated by a Recyclable TSIL·AgOAc Catalyst. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900724] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- David Lledó
- University of Alicante; Department of Analytical Chemistry, Nutrition and Food Sciences; PO Box 99 03080 Alicante Spain
| | - Guillermo Grindlay
- University of Alicante; Department of Analytical Chemistry, Nutrition and Food Sciences; PO Box 99 03080 Alicante Spain
| | - José Miguel Sansano
- University of Alicante; Department of Organic Chemistry; Centro de Innovación en Química Avanzada (ORFEO-CINQA) and Instituto de Síntesis Orgánica (ISO); PO Box 99 03080 Alicante Spain
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30
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Roudsari ST, Rad‐Moghadam K, Hosseinjani‐Pirdehi H. Dual complex of amylose with iodine and magnetite nano‐crystallites: Enhanced superparamagnetic and catalytic performance for synthesis of spiro‐oxindoles. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4993] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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