Abstract
An efficient, green heterogeneous catalyst was developed for one-pot three component synthesis of Ethyl/methyl 4-(3-aryl-1-phenyl-1H-pyrazol-4-yl)-6-methyl-2-oxo1,2,3,4-tetrahydropyrimidine-5-carboxylate derivatives by the condensation of aldehydes, acetoacetate, and urea in the presence of 5% WO3/ZrO2 heterogenous catalyst under solventfree condition
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