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MIL-101(Cr), an Efficient Heterogeneous Catalyst for One Pot Synthesis of 2,4,5-tri Substituted Imidazoles under Solvent Free Conditions
Nanomaterials, Volume: 11, Issue: 4
Swansea University Authors:
Owen Guy , Zari Tehrani
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DOI (Published version): 10.3390/nano11040845
Abstract
A chromium-containing metal-organic framework (MOF), MIL-101 (Chromium(III) benzene-1,4-dicarboxylate), was used to catalyze the one pot, three component synthesis of some 2,4,5-trisubstituted imidazoles under solvent-free conditions. The advantages of using this heterogeneous catalyst include short...
Published in: | Nanomaterials |
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ISSN: | 2079-4991 |
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2021
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2021-04-28T13:53:40.4500056 v2 56545 2021-03-25 MIL-101(Cr), an Efficient Heterogeneous Catalyst for One Pot Synthesis of 2,4,5-tri Substituted Imidazoles under Solvent Free Conditions c7fa5949b8528e048c5b978005f66794 0000-0002-6449-4033 Owen Guy Owen Guy true false fd8e614b01086804c80fbafa6fa6aaf5 0000-0002-5069-7921 Zari Tehrani Zari Tehrani true false 2021-03-25 CHEM A chromium-containing metal-organic framework (MOF), MIL-101 (Chromium(III) benzene-1,4-dicarboxylate), was used to catalyze the one pot, three component synthesis of some 2,4,5-trisubstituted imidazoles under solvent-free conditions. The advantages of using this heterogeneous catalyst include short reaction time, high yields, easy and quick isolation of catalyst and products, low amount of catalyst needed, and that the addition of solvent, salt, and additives are not needed. This catalyst is highly efficient and can be recovered at least 5 times with a slight loss of efficiency. The structure of the metal-organic frameworks (MOF) was confirmed by X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM). Fourier transform infrared spectroscopy (FTIR) and proton nuclear magnetic resonance (HNMR) were performed to confirm some of the synthesized products. Experimental data indicated that the optimum amount of catalyst was 5 mg for benzil (1 mmol), 4-chlorobenzaldehyde (1 mmol), and ammonium acetate (2.5 mmol), and the synthetic route to the various imidazoles is performed in 10 min by 95% yield, an acceptable result rivalling those of other catalysts. Journal Article Nanomaterials 11 4 MDPI AG 2079-4991 heterogeneous catalysis; metal-organic frameworks; MIL-101; multicomponent reactions; solvent free 26 3 2021 2021-03-26 10.3390/nano11040845 COLLEGE NANME Chemistry COLLEGE CODE CHEM Swansea University UKRI, EP/M006301/1 2021-04-28T13:53:40.4500056 2021-03-25T08:35:56.0751416 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemistry Faranak Manteghi 1 Fatemeh Zakeri 2 Owen Guy 0000-0002-6449-4033 3 Zari Tehrani 0000-0002-5069-7921 4 56545__19582__13e5b8a9a20f4219bd702aa46fd395a3.pdf 56545.VOR.nanomaterials-11-00845.pdf 2021-03-26T18:39:15.7181612 Output 2988665 application/pdf Version of Record true Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) 4.0 license. true eng https://creativecommons.org/licenses/by/4.0/ |
title |
MIL-101(Cr), an Efficient Heterogeneous Catalyst for One Pot Synthesis of 2,4,5-tri Substituted Imidazoles under Solvent Free Conditions |
spellingShingle |
MIL-101(Cr), an Efficient Heterogeneous Catalyst for One Pot Synthesis of 2,4,5-tri Substituted Imidazoles under Solvent Free Conditions Owen Guy Zari Tehrani |
title_short |
MIL-101(Cr), an Efficient Heterogeneous Catalyst for One Pot Synthesis of 2,4,5-tri Substituted Imidazoles under Solvent Free Conditions |
title_full |
MIL-101(Cr), an Efficient Heterogeneous Catalyst for One Pot Synthesis of 2,4,5-tri Substituted Imidazoles under Solvent Free Conditions |
title_fullStr |
MIL-101(Cr), an Efficient Heterogeneous Catalyst for One Pot Synthesis of 2,4,5-tri Substituted Imidazoles under Solvent Free Conditions |
title_full_unstemmed |
MIL-101(Cr), an Efficient Heterogeneous Catalyst for One Pot Synthesis of 2,4,5-tri Substituted Imidazoles under Solvent Free Conditions |
title_sort |
MIL-101(Cr), an Efficient Heterogeneous Catalyst for One Pot Synthesis of 2,4,5-tri Substituted Imidazoles under Solvent Free Conditions |
author_id_str_mv |
c7fa5949b8528e048c5b978005f66794 fd8e614b01086804c80fbafa6fa6aaf5 |
author_id_fullname_str_mv |
c7fa5949b8528e048c5b978005f66794_***_Owen Guy fd8e614b01086804c80fbafa6fa6aaf5_***_Zari Tehrani |
author |
Owen Guy Zari Tehrani |
author2 |
Faranak Manteghi Fatemeh Zakeri Owen Guy Zari Tehrani |
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Journal article |
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Nanomaterials |
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11 |
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4 |
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2021 |
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Swansea University |
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2079-4991 |
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10.3390/nano11040845 |
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MDPI AG |
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Faculty of Science and Engineering |
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Faculty of Science and Engineering |
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Faculty of Science and Engineering |
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School of Engineering and Applied Sciences - Chemistry{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemistry |
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description |
A chromium-containing metal-organic framework (MOF), MIL-101 (Chromium(III) benzene-1,4-dicarboxylate), was used to catalyze the one pot, three component synthesis of some 2,4,5-trisubstituted imidazoles under solvent-free conditions. The advantages of using this heterogeneous catalyst include short reaction time, high yields, easy and quick isolation of catalyst and products, low amount of catalyst needed, and that the addition of solvent, salt, and additives are not needed. This catalyst is highly efficient and can be recovered at least 5 times with a slight loss of efficiency. The structure of the metal-organic frameworks (MOF) was confirmed by X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM). Fourier transform infrared spectroscopy (FTIR) and proton nuclear magnetic resonance (HNMR) were performed to confirm some of the synthesized products. Experimental data indicated that the optimum amount of catalyst was 5 mg for benzil (1 mmol), 4-chlorobenzaldehyde (1 mmol), and ammonium acetate (2.5 mmol), and the synthetic route to the various imidazoles is performed in 10 min by 95% yield, an acceptable result rivalling those of other catalysts. |
published_date |
2021-03-26T04:11:35Z |
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1763753795987177472 |
score |
11.012678 |