Authors | لیلا حمصی,حسین نعیمی |
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Journal | INORGANIC AND NANO-METAL CHEMISTRY |
Page number | 1 |
Volume number | 2 |
IF | 1.7 |
Paper Type | Full Paper |
Published At | 2023-06-20 |
Journal Grade | Scientific - research |
Journal Type | Electronic |
Journal Country | Iran, Islamic Republic Of |
Journal Index | SCOPUS ,JCR |
Abstract
A simple and efficient one-pot procedure for the synthesis of 1,4-dihydropyrimidinones in ethanol under ultrasound irradiation is described. These heterocyclic compounds were prepared through condensation of aromatic aldehyde, ethyl acetoacetate, urea, or thiourea in the presence of ZnO NPs@rGO nanocomposite as a convenient and reactive catalyst. This protocol has very advantages such as low loading catalyst, excellent product yields, and short reaction times. The structures and morphology properties of ZnO NPs@rGO nanocomposite was investigated by FTIR, XRD, FE-SEM. and EDX techniques. Furthermore, the organic products were identified by melting points, FTIR, and 1H NMR analyses.
tags: Dihydropyrimidinone; aromatic aldehyde; ZnO NPs@rGO; nanocomposite; ultrasound irradiation