抗酸化剤に関する研究(第9報)プロトカテキュ酸エチルの光分解

抄録

Examinations were made to clarify the structure of products formed by autoxidation of an antioxidant, ethyl protocatechuate. Irradiation of the antioxidant in ethanol or in methyl oleate with ultraviolet ray resulted in the formation of 5'-ethoxycarbonyl-3, 3', 4-trihydroxybiphenyl-2, 2'-carbolactone which was inactive as an antioxidant, unlike oxidation products of butyl hydroxyanisole. Effect of the substrate and variation in the amount of oxidation products formed are also discussed.