Synthesis and characterization of Fe3O4/PEG-400/oxalic acid magnetic nanoparticles as a heterogeneous catalyst for the synthesis of pyrrolin-2-ones derivatives
| Autor: | Esmaeilzadeh Seyran, Setamdideh Davood |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Journal of the Serbian Chemical Society, Vol 86, Iss 11, Pp 1039-1052 (2021) |
| Druh dokumentu: | article |
| ISSN: | 0352-5139 1820-7421 79405789 |
| DOI: | 10.2298/JSC210521059E |
| Popis: | In this study, oxalic acid was successfully loaded onto Fe3O4/PEG-400 under ultrasonic irradiation and Fe3O4/PEG/oxalic acid as a new nanomagnetic catalyst was synthesized. The chemical structure of the catalyst was investigated by the FT-IR, XRD, EDX and SEM methods. The catalyst was used for the synthesis of 3-acyl-5-hydroxy-3-pyrrolin-2-one derivatives from the corresponding aldehydes, anilines and dimethyl acetylenedicarboxylate (DMAD) by a one-pot and three-component MCR reaction in the excellent yields (90–95 %) of products within 24 h at room temperature. Fourteen samples are available. The recovered catalyst could be satisfactorily used for a second and third run without regeneration. This method has a green and eco-friendly profile. In addition, this research introduces an improved mechanism for these types of reaction. The chemical structures of new compounds was characterized by their FT-IR, 1H-NMR, 13C- -NMR and mass spectra. |
| Databáze: | Directory of Open Access Journals |
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