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Synthesis of multiple quinoline derivatives using novel ionic liquid-based nano-magnetic catalyst (MNPs@SiO2-Pr-AP-tribromide). RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04675-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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2
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Nikoofar K, Shahriyari F. Ultrasound-assisted aqua-mediated synthesis of multi-substituted tetrahydropyridine-3-carboxylates using N-carboxymethyl-3-pyridinium hydrogensulfate ([N-CH2CO2H-3-pic]+HSO4−) as a new efficient ionic liquid catalyst. SN APPLIED SCIENCES 2021. [DOI: 10.1007/s42452-021-04671-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
AbstractA simple, straightforward, and ultrasound-promoted method for the preparation of some highly functionalized tetrahydropyridines reported via pseudo five-component reaction of (hetero)aromatic aldehydes, different anilines, and alkyl acetoacetates in the presence of [N-CH2CO2H-3-pic]+HSO4−, as a novel ionic liquid, in green aqueous medium. The IL was synthesized utilizing simple and easily-handled substrates and characterized by FT-IR, 1H NMR, 13C NMR, GC-MASS, FESEM, EDX, and TGA/DTG techniques. The procedure contains some highlighted aspects which are: (a) performing the MCR in the presence of aqua and sonic waves, as two main important and environmentally benign indexes in green and economic chemistry, (b) high yields of products within short reaction times, (c) convenient work-up procedure, (d) preparing the new IL via simple substrates and procedure.
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3
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Nikoofar K, Molaei Yielzoleh F. Cascade embedding triethyltryptophanium iodide ionic liquid (
TrpEt
3
+
I
−
) on silicated titanomagnetite core (
Fe
3‐x
Ti
x
O
4
‐SiO
2
@
TrpEt
3
+
I
−
): A novel nano organic–inorganic hybrid to prepare a library of 4‐substituted quinoline‐2‐carboxylates and 4,6‐disubstituted quinoline‐2‐carboxylates. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202000444] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Kobra Nikoofar
- Department of Chemistry, Faculty of Physics and Chemistry Alzahra University Tehran Iran
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4
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Brandão P, Marques CS, Carreiro EP, Pineiro M, Burke AJ. Engaging Isatins in Multicomponent Reactions (MCRs) - Easy Access to Structural Diversity. CHEM REC 2021; 21:924-1037. [PMID: 33599390 DOI: 10.1002/tcr.202000167] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/25/2021] [Indexed: 12/15/2022]
Abstract
Multicomponent reactions (MCRs) are a valuable tool in diversity-oriented synthesis. Its application to privileged structures is gaining relevance in the fields of organic and medicinal chemistry. Isatin, due to its unique reactivity, can undergo different MCRs, affording multiple interesting scaffolds, namely oxindole-derivatives (including spirooxindoles, bis-oxindoles and 3,3-disubstituted oxindoles) and even, under certain conditions, ring-opening reactions occur that leads to other heterocyclic compounds. Over the past few years, new methodologies have been described for the application of this important and easily available starting material in MCRs. In this review, we explore these novelties, displaying them according to the structure of the final products obtained.
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Affiliation(s)
- Pedro Brandão
- University of Coimbra, CQC and Department of Chemistry, 3004-535, Coimbra, Portugal.,LAQV-REQUIMTE, University of Évora, Rua Romão Ramalho, 59, 7000, Évora, Portugal
| | - Carolina S Marques
- LAQV-REQUIMTE, University of Évora, Rua Romão Ramalho, 59, 7000, Évora, Portugal
| | - Elisabete P Carreiro
- LAQV-REQUIMTE, University of Évora, Rua Romão Ramalho, 59, 7000, Évora, Portugal
| | - M Pineiro
- University of Coimbra, CQC and Department of Chemistry, 3004-535, Coimbra, Portugal
| | - Anthony J Burke
- LAQV-REQUIMTE, University of Évora, Rua Romão Ramalho, 59, 7000, Évora, Portugal.,University of Evora, Department of Chemistry, Rua Romão Ramalho, 59, 7000, Évora, Portugal
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5
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Mishra M, Jomon KJ, Krishnan VRS, Nizam A. [18-C-6H 3O +]: an in-situ generated macrocyclic complex and an efficient, novel catalyst for synthesis of pyrano[2,3-c]pyrazole derivatives. Sci Rep 2020; 10:14342. [PMID: 32868818 PMCID: PMC7459110 DOI: 10.1038/s41598-020-70665-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 07/14/2020] [Indexed: 01/19/2023] Open
Abstract
Synthesis of small aromatic heterocycles is of greater importance in the organic chemistry due to their vibrant applications in pharmaceuticals, agrochemicals and veterinary products. Pyranopyrazoles are one such class of heterocycles associated with numerous applications. Hence herein we report a multicomponent crown ether catalyzed, ultrasound irradiated methodology to make different functionalized pyranopyrazoles in a single step. This technique involves the in-situ generation of [18-C-6H3O+][OH−] complex, which in turn activates the aromatic aldehyde and aids in the facile nucleophilic addition.
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Affiliation(s)
- Manisha Mishra
- Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Bangalore, 560029, India
| | - K J Jomon
- Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Bangalore, 560029, India
| | - V R Sriram Krishnan
- Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Bangalore, 560029, India
| | - Aatika Nizam
- Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Bangalore, 560029, India.
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6
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Shahbakhsh Y, Habibi‐Khorassani SM, Shahraki M. Potassium Iodide as a New Nucleophilic Catalyst for the Novel Synthesis of Ionic Vinyl Compounds: Experimental and Theoretical Kinetic Approaches. ChemistrySelect 2020. [DOI: 10.1002/slct.202002224] [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]
Affiliation(s)
- Yaser Shahbakhsh
- Department of ChemistryFaculty of ScienceUniversity of Sistan and Baluchestan P O Box 98135–674 Zahedan Iran 33446565
| | | | - Mehdi Shahraki
- Department of ChemistryFaculty of ScienceUniversity of Sistan and Baluchestan P O Box 98135–674 Zahedan Iran 33446565
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7
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Nikoofar K, Peyrovebaghi SS. Ultrasound‐assisted synthesis of 3‐(1‐(2‐(1
H
‐indol‐3‐yl)ethyl)‐2‐aryl‐6,6‐dimethyl‐4‐oxo‐4,5,6,7‐tetrahydro‐1
H
‐indol‐3‐yl)indolin‐2‐ones by novel core‐shell bio‐based nanocatalyst anchoring sulfonated
L
‐histidine on magnetized silica (SO
3
H‐
L
‐His@SiO
2
‐nano Fe
3
O
4
). J CHIN CHEM SOC-TAIP 2020. [DOI: 10.1002/jccs.201900365] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Kobra Nikoofar
- Department of Chemistry, Faculty of Physics and ChemistryAlzahra University Tehran Iran
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8
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Nikoofar K, Mehrikaram F, Lashanizadegan M, Aghaei A. Copper(II)-Schiff Base Complex Embedded on Multi-Walled Carbon Nanotubes (APTMS@MWCNTs/Schiff Base/Cu): A Novel Versatile Nanostructure to Promote Four-Component Preparation of Dihydro-spiro[cycloalkane-1,4′-quinoline]-2′,5′-diones. Polycycl Aromat Compd 2019. [DOI: 10.1080/10406638.2019.1614636] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Kobra Nikoofar
- Faculty of Physics & Chemistry, Department of Chemistry, Alzahra University, Tehran, Iran
| | - Fatemeh Mehrikaram
- Faculty of Physics & Chemistry, Department of Chemistry, Alzahra University, Tehran, Iran
| | - Maryam Lashanizadegan
- Faculty of Physics & Chemistry, Department of Chemistry, Alzahra University, Tehran, Iran
| | - Arezoo Aghaei
- Faculty of Physics & Chemistry, Department of Chemistry, Alzahra University, Tehran, Iran
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9
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Nikoofar K, Peyrovebaghi SS. 1-Butyl-2-methylpipyridinium iodide ([BMPPY]I): novel ionic liquid for the synthesis of 6-hydroxy-6-(1H-indol-3-yl)indolo[2,1-b]quinazolin-12(6H)-ones under green solvent-free conditions. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-03831-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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