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Fe(3)O(4)@nano-cellulose/Cu(ii): a bio-based and magnetically recoverable nano-catalyst for the synthesis of 4H-pyrimido[2,1-b]benzothiazole derivatives
Fe(3)O(4)@nano-cellulose/Cu(ii) as a green bio-based magnetic catalyst was prepared through in situ co-precipitation of Fe(2+) and Fe(3+) ions in an aqueous suspension of nano-cellulose. The mentioned magnetically heterogeneous catalyst was characterized by FT-IR, XRD, VSM, FESEM, TEM, XRF, EDS and...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9059560/ https://www.ncbi.nlm.nih.gov/pubmed/35518002 http://dx.doi.org/10.1039/c8ra09203f |
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author | Safajoo, Nasrin Mirjalili, Bi Bi Fatemah Bamoniri, Abdolhamid |
author_facet | Safajoo, Nasrin Mirjalili, Bi Bi Fatemah Bamoniri, Abdolhamid |
author_sort | Safajoo, Nasrin |
collection | PubMed |
description | Fe(3)O(4)@nano-cellulose/Cu(ii) as a green bio-based magnetic catalyst was prepared through in situ co-precipitation of Fe(2+) and Fe(3+) ions in an aqueous suspension of nano-cellulose. The mentioned magnetically heterogeneous catalyst was characterized by FT-IR, XRD, VSM, FESEM, TEM, XRF, EDS and TGA. In this research, the synthesis of 4H-pyrimido[2,1-b]benzothiazole derivatives was developed via a three component reaction of aromatic aldehyde, 2-aminobenzothiazole and ethyl acetoacetate using Fe(3)O(4)@nano-cellulose/Cu(ii) under solvent-free condition at 80 °C. Some advantages of this protocol are good yields, environmentally benign, easy work-up and moderate reusability of the catalyst. The product structures were confirmed by FT-IR, (1)H NMR, and (13)C NMR spectra. |
format | Online Article Text |
id | pubmed-9059560 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90595602022-05-04 Fe(3)O(4)@nano-cellulose/Cu(ii): a bio-based and magnetically recoverable nano-catalyst for the synthesis of 4H-pyrimido[2,1-b]benzothiazole derivatives Safajoo, Nasrin Mirjalili, Bi Bi Fatemah Bamoniri, Abdolhamid RSC Adv Chemistry Fe(3)O(4)@nano-cellulose/Cu(ii) as a green bio-based magnetic catalyst was prepared through in situ co-precipitation of Fe(2+) and Fe(3+) ions in an aqueous suspension of nano-cellulose. The mentioned magnetically heterogeneous catalyst was characterized by FT-IR, XRD, VSM, FESEM, TEM, XRF, EDS and TGA. In this research, the synthesis of 4H-pyrimido[2,1-b]benzothiazole derivatives was developed via a three component reaction of aromatic aldehyde, 2-aminobenzothiazole and ethyl acetoacetate using Fe(3)O(4)@nano-cellulose/Cu(ii) under solvent-free condition at 80 °C. Some advantages of this protocol are good yields, environmentally benign, easy work-up and moderate reusability of the catalyst. The product structures were confirmed by FT-IR, (1)H NMR, and (13)C NMR spectra. The Royal Society of Chemistry 2019-01-11 /pmc/articles/PMC9059560/ /pubmed/35518002 http://dx.doi.org/10.1039/c8ra09203f Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/ |
spellingShingle | Chemistry Safajoo, Nasrin Mirjalili, Bi Bi Fatemah Bamoniri, Abdolhamid Fe(3)O(4)@nano-cellulose/Cu(ii): a bio-based and magnetically recoverable nano-catalyst for the synthesis of 4H-pyrimido[2,1-b]benzothiazole derivatives |
title | Fe(3)O(4)@nano-cellulose/Cu(ii): a bio-based and magnetically recoverable nano-catalyst for the synthesis of 4H-pyrimido[2,1-b]benzothiazole derivatives |
title_full | Fe(3)O(4)@nano-cellulose/Cu(ii): a bio-based and magnetically recoverable nano-catalyst for the synthesis of 4H-pyrimido[2,1-b]benzothiazole derivatives |
title_fullStr | Fe(3)O(4)@nano-cellulose/Cu(ii): a bio-based and magnetically recoverable nano-catalyst for the synthesis of 4H-pyrimido[2,1-b]benzothiazole derivatives |
title_full_unstemmed | Fe(3)O(4)@nano-cellulose/Cu(ii): a bio-based and magnetically recoverable nano-catalyst for the synthesis of 4H-pyrimido[2,1-b]benzothiazole derivatives |
title_short | Fe(3)O(4)@nano-cellulose/Cu(ii): a bio-based and magnetically recoverable nano-catalyst for the synthesis of 4H-pyrimido[2,1-b]benzothiazole derivatives |
title_sort | fe(3)o(4)@nano-cellulose/cu(ii): a bio-based and magnetically recoverable nano-catalyst for the synthesis of 4h-pyrimido[2,1-b]benzothiazole derivatives |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9059560/ https://www.ncbi.nlm.nih.gov/pubmed/35518002 http://dx.doi.org/10.1039/c8ra09203f |
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