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Ali AQ, Siddiqui ZN. Ionic Liquid Functionalized Metal-Organic Framework ([DEIm][PF 6]@MOF-5): Synthesis, Characterization, and Catalytic Application in the Reduction of 4-Nitrophenol. ACS OMEGA 2023; 8:3785-3797. [PMID: 36743021 PMCID: PMC9893260 DOI: 10.1021/acsomega.2c05808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 12/20/2022] [Indexed: 06/18/2023]
Abstract
A novel, unique, highly effective, and recyclable heterogeneous catalyst, diethyl imidazolium hexafluorophosphate ionic liquid supported metal-organic framework ([DEIm][PF6]@MOF-5), has been synthesized using a simple impregnation method at ambient temperature. Characterization of the catalyst was done through various techniques such as Fourier transform infrared (FTIR), energy dispersive X-ray, X-ray diffraction (XRD), transmission electron microscopy, scanning electron microscopy (SEM), elemental mapping, Raman spectroscopy, X-ray photoelectron spectroscopy, and thermogravimetric analysis (TGA) analyses. The kinetic study has shown the high catalytic performance of [DEIm][PF6]@MOF-5 for the reduction of 4-nitrophenol (NP) compared to other catalysts. The catalyst also exhibited efficient electrochemical activity toward 4-NP reduction. The catalyst was recyclable for more than seven cycles without any significant loss in its catalytic performance. The recycled catalyst was further studied using XRD, FTIR, SEM, and TGA analyses to investigate the structural changes that occurred during the reaction. The catalyst maintained its structural integrity even after seven cycles.
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Kalhor M, Shayestefar M, Khalaj M, Janghorban F. Ca(IO 3) 2 nanoparticles: fabrication and application as an eco-friendly and recyclable catalyst for the green synthesis of quinoxalines, pyridopyrazines, and 2,3-dicyano pyrazines. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [PMCID: PMC9764318 DOI: 10.1007/s11164-022-04914-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In this paper, calcium iodate nanoparticles were first synthesized by the modified reaction of Ca(NO3)2 and KIO3 in an aqueous medium under ultrasonic irradiation. The structure of nanocatalyst was then characterized by FT-IR, FESEM, EDX, XRD, and BET techniques. Afterward, the fabricated Ca(IO3)2 was applied as a nanocatalyst in the facile synthesis of heterocycles including quinoxalines, 5,6-dicyano pyrazines, and pyrido[2,3-b]pyrazines. For this purpose, the feasibility of the reaction in the presence of different catalyst amounts, solvents, and temperatures was first investigated. Next, the target compounds were obtained by the condensation reaction of aryl-1,2-diamines or 2,3-diaminomaleonitrile with 1,2-diketones in the presence of a catalytic amount of Ca(IO3)2 in ethanol or acetic acid solvents at ambient temperature in good to excellent yields. One of the salient advantages of this work is the synthesis of calcium iodate nanoparticles by chemical precipitation method and its application as a heterogeneous nanocatalyst for the first time in the synthesis of organic compounds. The other important benefits of this process are the use of an inexpensive, safe, stable and recyclable catalyst, high product yields, short reaction times, and easy isolation of the product in pure form.
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Affiliation(s)
- Mehdi Kalhor
- Department of Chemistry, Payame Noor University, Tehran, 19395-4697 Iran
| | | | - Mehdi Khalaj
- Department of Chemistry, Buinzahra Branch, Islamic Azad University, Buinzahra, 3451686799 Iran
| | - Fatemeh Janghorban
- Department of Chemistry, Payame Noor University, Tehran, 19395-4697 Iran
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Hasanpour Galehban M, Zeynizadeh B, Mousavi H. Ni II NPs entrapped within a matrix of l-glutamic acid cross-linked chitosan supported on magnetic carboxylic acid-functionalized multi-walled carbon nanotube: a new and efficient multi-task catalytic system for the green one-pot synthesis of diverse heterocyclic frameworks. RSC Adv 2022; 12:16454-16478. [PMID: 35754864 PMCID: PMC9171750 DOI: 10.1039/d1ra08454b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 04/20/2022] [Indexed: 12/19/2022] Open
Abstract
In the present study, a new l-glutamic acid cross-linked chitosan supported on magnetic carboxylic acid-functionalized multi-walled carbon nanotube (Fe3O4/f-MWCNT-CS-Glu) nanocomposite was prepared through a convenient one-pot multi-component sequential strategy. Then, nickelII nanoparticles (NiII NPs) were entrapped within a matrix of the mentioned nanocomposite. Afterward, the structure of the as-prepared Fe3O4/f-MWCNT-CS-Glu/NiII nanosystem was elucidated by various techniques, including FT-IR, PXRD, SEM, TEM, SEM-based EDX and elemental mapping, ICP-OES, TGA/DTA, and VSM. In the next part of this research, the catalytic applications of the mentioned nickelII-containing magnetic nanocomposite were assessed upon green one-pot synthesis of diverse heterocyclic frameworks, including bis-coumarins (3a–n), 2-aryl(or heteroaryl)-2,3-dihydroquinazolin-4(1H)-ones (5a–r), 9-aryl-3,3,6,6-tetramethyl-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-diones (7a–n), and 2-amino-4-aryl-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitriles (9a–n). The good-to-excellent yields of the desired products, satisfactory reaction rates, use of water solvent or solvent-free reaction medium, acceptable turnover numbers (TONs) and turnover frequencies (TOFs), along with comfortable recoverability and satisfying reusability of the as-prepared nanocatalyst for at least eight successive runs, and also easy work-up and purification procedures are some of the advantages of the current synthetic protocols. In this research work, an Fe3O4/f-MWCNT-CS-Glu/NiII hybrid nanocomposite was synthesized, characterized, and used as a new and efficient multi-task catalytic system for the green one-pot synthesis of diverse heterocyclic frameworks.![]()
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Affiliation(s)
| | - Behzad Zeynizadeh
- Department of Organic Chemistry, Faculty of Chemistry, Urmia University Urmia Iran
| | - Hossein Mousavi
- Department of Organic Chemistry, Faculty of Chemistry, Urmia University Urmia Iran
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Asim Raza M, Gull N, Lee SW, Seralathan KK, Hyun Park S. Development of stimuli-responsive chitosan based hydrogels with anticancer efficacy, enhanced antibacterial characteristics, and applications for controlled release of benzocaine. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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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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7
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Dhameliya TM, Nagar PR, Bhakhar KA, Jivani HR, Shah BJ, Patel KM, Patel VS, Soni AH, Joshi LP, Gajjar ND. Recent advancements in applications of ionic liquids in synthetic construction of heterocyclic scaffolds: A spotlight. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118329] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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8
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Khazaei A, Moosavi-Zare AR, Goudarzi H, Tavasoli M. Preparation and Catalytic Application of 3-Methyl-1-Sulfonic Acid Imidazolium Copper (II) Trichloride for the Synthesis of 1-(α-Aminoalkyl)-2-Naphthols. Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2021.2015406] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | | | - Hadis Goudarzi
- Faculty of Chemistry, Bu-Ali Sina University, Hamedan, Iran
| | - Mahsa Tavasoli
- Faculty of Chemistry, Bu-Ali Sina University, Hamedan, Iran
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Nasrollahzadeh M, Ghasemzadeh M, Gharoubi H, Nezafat Z. Progresses in polysaccharide and lignin-based ionic liquids: Catalytic applications and environmental remediation. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117559] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Khazaei A, Moosavi-Zare AR, Goudarzi H, Tavasoli M. [Msim]CuCl3: as an efficient catalyst for the preparation of 5-amino-1H-pyrazole-4-carbonitriles by anomeric based oxidation. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2021. [DOI: 10.1515/znb-2021-0153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
3-Methyl-1-sulfonic acid imidazolium trichlorido copper (II) {[Msim]CuCl3} was prepared and used as a new catalyst for the preparation of 5-amino-1H-pyrazole-4-carbonitriles. In this reaction, the pyrazole ring was formed by an anomeric and vinylogous anomeric effect in the structure of the product.
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Affiliation(s)
- Ardeshir Khazaei
- Faculty of Chemistry, Bu-Ali Sina University , Hamedan , 6517838683 , Iran
| | - Ahmad Reza Moosavi-Zare
- Department of Chemical Engineering , Hamedan University of Technology , Hamedan , 65155 , Iran
| | - Hadis Goudarzi
- Faculty of Chemistry, Bu-Ali Sina University , Hamedan , 6517838683 , Iran
| | - Mahsa Tavasoli
- Faculty of Chemistry, Bu-Ali Sina University , Hamedan , 6517838683 , Iran
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Sharma A, Kaur G, Singh D, Gupta VK, Banerjee B. A General Method for the Synthesis of 11H-Indeno[1,2-B]Quinoxalin- 11-Ones and 6H-Indeno[1,2-B]Pyrido[3,2-E]Pyrazin-6-One Derivatives Using Mandelic Acid as an Efficient Organo-Catalyst at Room Temperature. CURRENT ORGANOCATALYSIS 2021. [DOI: 10.2174/2213337208666210825112301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Aims:
Synthesis of 11H-indeno[1,2-b]quinoxalin-11-ones as well as 6H-indeno[1,2-b]pyrido[3,2-e]pyrazin-6-one derivatives under greener conditions.
Background:
Quinoxaline and related skeletons are very common in naturally occurring bioactive compounds.
Objective:
Design a facile, green and organo-catalyzed method for the synthesis of 11H-indeno[1,2-b]quinoxalin-11-ones as well as 6H-indeno[1,2-b]pyrido[3,2-e]pyrazin-6-one derivatives.
Methods:
Both the scaffolds were synthesized via the condensation of ninhydrin and o-phenylenediamines or pyridine-2,3-diamines respectively by using a catalytic amount of mandelic acid as an efficient, commercially available, low cost, organo-catalyst in aqueous ethanol at room temperature.
Results:
Mild reaction conditions, use of metal-free organocatalyst, non-toxic solvent, ambient temperature, and no column chromatographic separation are some of the notable advantages of our developed protocol.
Conclusion:
In conclusion, we have developed a simple, mild, facile and efficient method for the synthesis of structurally diverse 11H-indeno[1,2-b]quinoxalin-11-one derivatives via the condensation reactions of ninhydrin and various substituted benzene-1,2-diamines using a catalytic amount of mandelic acid as a commercially available metal-free organo-catalyst in aqueous ethanol at room temperature. Under the same optimized reaction conditions, synthesis of 6H-indeno[1,2-b]pyrido[3,2-e]pyrazin-6-one derivatives was also accomplished with excellent yields by using pyridine-2,3-diamines instead of o-phenylenediamine.
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Affiliation(s)
- Aditi Sharma
- Department of Chemistry, Akal University, Talwandi Sabo, Bathinda, Punjab-151302, India
| | - Gurpreet Kaur
- Department of Chemistry, Akal University, Talwandi Sabo, Bathinda, Punjab-151302, India
| | - Diksha Singh
- Department of Chemistry, Indus International University, V.P.O Bathu, Dist. Una, Himachal Pradesh, Pin-174301, India
| | - Vivek Kumar Gupta
- Department of Physics, University of Jammu, Jammu Tawi-180 006, India
| | - Bubun Banerjee
- Department of Chemistry, Akal University, Talwandi Sabo, Bathinda, Punjab-151302, India
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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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Khan MU, Rather RA, Siddiqui ZN. Design, characterization and catalytic evaluation of halometallic ionic liquid incorporated Nd 2O 3 nanoparticles ([smim][FeCl 4] -@Nd 2O 3) for the synthesis of N-aryl indeno pyrrole derivatives. RSC Adv 2020; 10:44892-44902. [PMID: 35516249 PMCID: PMC9058663 DOI: 10.1039/d0ra08812a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 12/03/2020] [Indexed: 11/29/2022] Open
Abstract
Silica modified imidazolium [smim] based halometallic ionic liquids, [smim][MCl4] (M = Fe, Cu and Zn), were synthesized for the evaluation of acidic and catalytic properties. Among these ILs, [smim][FeCl4]− was used for the preparation of heterogeneous catalyst ([smim][FeCl4]−@Nd2O3) by simple immobilization of IL on Nd2O3 nanoparticles. The structure of [smim][FeCl4]−@Nd2O3 was established by various techniques including FTIR, Raman, UV-vis DRS, powder XRD, SEM/EDX, elemental mapping, TEM, TGA, EPR and XPS analyses. The stability of nano-catalyst, [smim][ FeCl4]−@Nd2O3, was established with the help of zeta potential analysis which showed a value of −40.32 mV lying under the stability range. Potentiometric titration with n-butyl amine was used to evaluate the acidic properties of [smim][MCl4] as well as [smim][FeCl4]−@Nd2O3. The catalytic potential of the material was probed through the one pot synthesis of N-aryl indeno pyrrole derivatives. The results showed excellent performance of the material by producing a high yield (98%) of indeno pyrrole derivatives. A recyclability experiment revealed that the catalyst was efficient in up to five cycles with insignificant loss in catalytic activity. The evaluation of green metrics indicated the sustainability of the present protocol in terms of high atom economy and low E-factor. Silica modified imidazolium based halometallic ionic liquids, [smim][MCl4] and [smim][FeCl4]−@Nd2O3 were synthesized for the evaluation of acidic and catalytic properties.![]()
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Affiliation(s)
- Mohd Umar Khan
- Department of Chemistry, Aligarh Muslim University Aligarh 202002 Uttar Pradesh India
| | - Ryhan Abdullah Rather
- Department of Chemistry, Aligarh Muslim University Aligarh 202002 Uttar Pradesh India
| | - Zeba N Siddiqui
- Department of Chemistry, Aligarh Muslim University Aligarh 202002 Uttar Pradesh India
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14
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Kaur P, Chopra HK. Exploring the Potential of Supported Ionic Liquids as Building Block Systems in Catalysis. ChemistrySelect 2020. [DOI: 10.1002/slct.202002826] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Pawanpreet Kaur
- Department of Chemistry Sant Longowal Institute of Engineering and Technology Longowal 148106, Distt. Sangrur (Punjab) India
| | - Harish K. Chopra
- Department of Chemistry Sant Longowal Institute of Engineering and Technology Longowal 148106, Distt. Sangrur (Punjab) India
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Siddiqui S, Siddiqui ZN. Synthesis and catalytic evaluation of PVP-CeO 2/rGO as a highly efficient and recyclable heterogeneous catalyst for multicomponent reactions in water. NANOSCALE ADVANCES 2020; 2:4639-4651. [PMID: 36132914 PMCID: PMC9419207 DOI: 10.1039/d0na00491j] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 06/24/2020] [Indexed: 05/24/2023]
Abstract
A highly efficient and eco-friendly route for the reduction of graphene oxide (GO) to reduced graphene oxide (rGO) was developed by using polyvinylpyrrolidone coated CeO2 NPs (PVP-CeO2) as a reducing and stabilizing agent. The resulting carbonaceous material, PVP-CeO2/rGO, was well characterized with different spectroscopic techniques such as Fourier Transform Infrared (FTIR) spectroscopy, Scanning Electron Microscopy (SEM), Energy Dispersive X-ray (EDX), elemental mapping, Transmission Electron Microscopy (TEM), Raman spectroscopy, powder X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), X-ray Photoelectron Spectroscopy (XPS), and Thermal Gravimetric (TG) analyses. The material exhibited high catalytic potential towards multicomponent reactions for the synthesis of biologically relevant benzodiazepine derivatives in aqueous media. The efficiency of the material for the desired reaction was shown in the form of an excellent product yield (96-98%) and a very short reaction time period (7-10 min). The use of water as solvent and recyclability of the catalyst made the present protocol acceptable from a green perspective.
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Affiliation(s)
- Shaheen Siddiqui
- Department of Chemistry, Aligarh Muslim University Aligarh 202002 Uttar Pradesh India
| | - Zeba N Siddiqui
- Department of Chemistry, Aligarh Muslim University Aligarh 202002 Uttar Pradesh India
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Tran LT, Ho TH, Phan NTA, Nguyen TT, Phan NTS. Sulfur-mediated annulation of 1,2-phenylenediamines towards benzofuro- and benzothieno-quinoxalines. Org Biomol Chem 2020; 18:5652-5659. [PMID: 32648870 DOI: 10.1039/d0ob00887g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
We report a method for condensation between ortho-phenylenediamines and ortho-hydroxyacetophenones to afford benzofuroquinoxalines. The reactions proceeded in the presence of an elemental sulfur mediator, DABCO base, and DMSO solvent. Functionalities such as nitrile, ester, and halogen groups were compatible. The conditions could be applicable for the synthesis of benzothienoquinoxalines from ortho-chloroacetophenones.
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Affiliation(s)
- Loan T Tran
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam.
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Rather RA, Siddiqui S, Khan WA, Siddiqui ZN. La/Ce mixed metal oxide supported MWCNTs as a heterogeneous catalytic system for the synthesis of chromeno pyran derivatives and assessment of green metrics. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.110975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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18
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Khan MU, Siddiqui S, Khan WA, Siddiqui ZN. Efficient reduction of graphene oxide to graphene nanosheets using a silica-based ionic liquid: synthesis, characterization and catalytic properties of IMD-Si/FeCl4−@GNS. NEW J CHEM 2020. [DOI: 10.1039/c9nj05768d] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ionic liquid-modified graphene nanosheets (IMD-Si/FeCl4−@GNS) have been synthesized as efficient catalysts for the synthesis of (E)-selective thiosemicarbazones.
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Rather RA, Siddiqui ZN. Silver phosphate supported on metal–organic framework (Ag
3
PO
4
@MOF‐5) as a novel heterogeneous catalyst for green synthesis of indenoquinolinediones. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5176] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
| | - Zeba N. Siddiqui
- Department of ChemistryAligarh Muslim University Aligarh 202002 India
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Siddiqui S, Siddiqui ZN. Copper Schiff base functionalized polyaniline (Cu‐SB/PANI): A highly efficient polymer based organometallic catalyst for the synthesis of 2‐amino chromene derivatives. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5161] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Shaheen Siddiqui
- Department of ChemistryAligarh Muslim University Aligarh 202002 Uttar Pradesh India
| | - Zeba N. Siddiqui
- Department of ChemistryAligarh Muslim University Aligarh 202002 Uttar Pradesh India
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21
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Rather RA, Siddiqui ZN. Sulfonic acid functionalized metal–organic framework (S-IRMOF-3): a novel catalyst for sustainable approach towards the synthesis of acrylonitriles. RSC Adv 2019; 9:15749-15762. [PMID: 35521398 PMCID: PMC9064389 DOI: 10.1039/c9ra01012b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 05/03/2019] [Indexed: 11/25/2022] Open
Abstract
A sulfonic acid functionalized metal–organic framework (S-IRMOF-3) has been synthesized by dropwise addition of chlorosulfonic acid (0.5 mL) in IRMOF-3 (1 g) containing 20 mL of CHCl3 at 0 °C under simple stirring. The catalyst was applied in Knoevenagel condensation of various aromatic and hetero-aromatic aldehydes forming acrylonitrile derivatives. The catalyst was characterized thoroughly by using FT-IR, XRD, 13C MAS NMR, SEM, EDX, elemental mapping, TEM, BET, NH3-TPD and TGA/DTA techniques. The presence of characteristic bands at 1694 cm−1, 1254–769 cm−1 and 1033 cm−1 in the FT-IR spectrum, 2θ ≃ 6.7° and 9.8° in the XRD pattern and δ = 31.79, 39.55, 129.61, 131.46 (4C, CH), 133.54, 140.07 (2C), 167.71, 171.47 ppm (2C, 2C
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O) in the solid state 13C MAS NMR spectrum confirmed the successful formation of catalyst. This new eco-friendly approach resulted in a significant improvement in the synthetic efficiency (90–96% yield), high product purity, and minimizing the production of chemical wastes without using highly toxic reagents for the synthesis of acrylonitriles with selectivity for (Z)-isomer. Steric interactions seem to have an influence on the control of the Z-configurational isomers. By performing DFT calculations, it was found that the (Z)-isomer 3a is stabilized by 1.64 kcal mol−1 more than the (E)-isomer. The catalyst could be reused for five consecutive cycles without substantial loss in catalytic activity. Sulfonic acid functionalized metal–organic framework (S-IRMOF-3) as an efficient heterogeneous catalyst has been synthesized and employed for sustainable approach towards the synthesis of acrylonitriles in high yield and shorter reaction time period.![]()
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Affiliation(s)
| | - Zeba N. Siddiqui
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
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