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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...

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Autores principales: Safajoo, Nasrin, Mirjalili, Bi Bi Fatemah, Bamoniri, Abdolhamid
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2019
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.
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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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