Sonochemical synthesis of l,4-dihydropyrimidinones catalyzed by reduced graphene oxide encapsulated zinc oxide nanoparticles

Authorsلیلا حمصی,حسین نعیمی
JournalINORGANIC AND NANO-METAL CHEMISTRY
Page number1
Volume number2
IF1.7
Paper TypeFull Paper
Published At2023-06-20
Journal GradeScientific - research
Journal TypeElectronic
Journal CountryIran, Islamic Republic Of
Journal IndexSCOPUS ,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