Quinone Hemiacetal Formation from Protocatechuic Acid during the DPPH Radical Scavenging Reaction
Quinone Hemiacetal Formation from Protocatechuic Acid during the DPPH Radical Scavenging Reaction
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DPPH 自由基清除反应过程中原儿茶酸形成醌半缩醛
DOI：
10.1271/bbb.67.1578
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
T. Kasai
中科院分区：
文献类型：
--
作者：
S. Saito;Y. Okamoto;J. Kawabata;T. Kasai
原儿茶酸在甲醇中与DPPH自由基反应时，迅速转化为原儿茶醌3-甲基半缩醛和原儿茶醌。通过比较NMR数据与由（二乙酰氧基）碘苯氧化原儿茶酸制备的真实化合物的NMR数据来确定缩醛的结构。
Protocatechuic acid was rapidly converted to protocatechuquinone 3-methyl hemiacetal and protocatechuquinone during the reaction with DPPH radical in methanol. The structure of the acetal was determined by comparing the NMR data with those of an authentic compound prepared by (diacetoxy)iodobenzene oxidation of protocatechuic acid.