Abstract
The reaction of aryl(hetaryl)-substituted 1,3-diketones with chloroacetamide gave the respective N-(3-oxoalkenyl)chloroacetamides, which were converted to 3-pyridinium-substituted pyridin-2(1Н)-ones upon heating with excess of pyridine in n-butanol. The decomposition of pyridinium salts with hydrazine hydrate resulted in new 4-aryl(hetaryl)-substituted 3-aminopyridin-2(1Н)-ones, which showed strong antiradical activity with respect to ABTS and DPPH radicals.
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