Four derivatives of thymol, carvacrol, and eugenol were synthesized: 4-(hydroxymethyl)-5- isopropyl-2-methylphenol, 4, 4′-methylenebis (5-isopropyl-2-methyl) phenol, 4-allyl-6- (hydroxymethyl)-2-methoxyphenol, and 4-(hydroxymethyl)-2-isopropyl-5-methylphenol. The obtained derivatives showed remarkably better antioxidative properties according to 1, 1- diphenyl-2-picrylhydrazyl assay (50% inhibitory concentrations= 4–156 µg/mL) and ...