Thwin M, Mahmoudi B, Ivaschuk OA, Yousif QA. An efficient and recyclable nanocatalyst for the green and rapid synthesis of biologically active polysubstituted pyrroles and 1,2,4,5-tetrasubstituted imidazole derivatives.
RSC Adv 2019;
9:15966-15975. [PMID:
35521369 PMCID:
PMC9064275 DOI:
10.1039/c9ra02325a]
[Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 05/09/2019] [Indexed: 11/25/2022] Open
Abstract
An effective process for the green and rapid synthesis of biologically active polysubstituted pyrroles and 1,2,4,5-tetrasubstituted imidazoles derivatives using Cu@imine/Fe3O4 MNPs catalyst under solvent-free conditions is explained. This catalyst showed high reactivity for the synthesis of a set of different derivatives of polysubstituted pyrroles and 1,2,4,5-tetrasubstituted imidazole derivatives under appropriate reaction conditions and short times. Moreover, the catalyst was also recycled and reused for six runs with no considerable reduction in reactivity and yields. Compared to the reported procedures, this method consistently demonstrates the advantages of low catalyst loading, short reaction times, easy separation and purification of the products, high yields, and high recoverability and recoverability of the catalyst.
So the use of Fe3O4@SiO2–ZrCl2-MNPs leads to an improved protocol in terms of the compatibility with the environment, yields of the products, reaction times and the amount of the catalyst when compared with other catalysts.![]()
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