Characterization of a Product (Esculetin ; 6, 7-Dihydroxycoumarin) from the Phenolase-Caffeic Acid Reaction System
キーワード:
coumarin
1985 年 33 巻 3 号 p. 1289-1292
詳細
1985 年 33 巻 3 号 p. 1289-1292
Esculetin (6, 7-dihydroxycoumarin) was isolated in crystalline form from a reaction mixture containing phenolase and cis-caffeic acid. The oxygen atom in the lactone ring of esculetin thus formed was not derived from molecular oxygen or water, and it is suggested that the carboxyl group of caffeic acid may be involved.
