Abstract
The synthesized of five new pyrimidine derivatives was prepared from the condensation in one pot reaction of ethyl acetoacetate, substituted aromatic aldehydes, urea, and FeCL3.6H2O, with 5 to 10 drops of hydrochloride acid as catalyst in reflexing ethanol. The yield of the product was found to be in the range of 55 to 90%. The antioxidant efficiency of synthesized compounds was estimated by using the 2, 2-diphenyl-1-picrylhydrazyl (DPPH) method, hydroxyl method, nitric oxide method, and superoxide radical scavenging assay method. The compounds 6a, 6e, and 6c demonstrated considerable radical scavenging activity, resulting in the presence of electron-donating substituent on replaced aldehydes. The confirmation compounds by spectral data by proton and 13C-nuclear magnetic resonance, infrared spectra, and MS spectra.
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