Silver(I)/celite promoted oxidative cycloaddition of 4-hydroxycoumarin to olefins. A facile synthesis of dihydrofurocoumarins and furocoumarins
作者:Yong Rok Lee、Byung So Kim、Han Cheol Wang
DOI:10.1016/s0040-4020(98)00762-5
日期:1998.10
An efficient synthesis of dihydrofurocoumarins and furocoumarins is achieved from 4-hydroxycoumarins and olefins in the presence of Ag2CO3/Celite in moderate yields. The new method has been applied to the synthesis of the natural cyclobrachycoumarin isolated from Brachyclados megalanthus.
在Ag 2 CO 3 / Celite存在下,由4-羟基香豆素和烯烃可以高效合成二氢呋喃香豆素和呋喃香豆素。该新方法已应用于合成自Brachyclados megalanthus的天然环水香豆素的合成。