黄原酮
化学
甲醇钠
芒果藤黄
天然产物
藤黄属
立体化学
有机化学
传统医学
甲醇
医学
作者
V. K. Ahluwalia,Ashok Tehim
出处
期刊:Tetrahedron
[Elsevier]
日期:1984-01-01
卷期号:40 (17): 3303-3312
被引量:6
标识
DOI:10.1016/0040-4020(84)85015-2
摘要
The reaction of l,3-dihydroxy-6-methoxy- and 1,3,6-trihydroxy-xanthone with 1-bromo3-methylbut-2-ene in presence of methanolic sodium methoxide, to give corresponding 3-methylbut-2enylated xanthones, is described. Synthesis of 1,3,6-trihydroxy-2,4-bis(3-methylbut-2-enyl)-9H- xanthen-9-one, designed as garcinone A and reported as a natural product from the fruit-hulls of Garcinia mangostana (Guttiferae), has also been achieved. However synthetic xanthone is found to be different from natural garcinone A, therefore its constitution needs reinvestigation.
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