4-Arylcoumarins can be prepared in good to high yields by reacting readily available methyl or butyl 3-(o-hydroxyaryl)acrylates with aryl iodides and bromides in an n-Bu4NOAc/n-Bu4NBr mixture at 100 °C in the presence of Pd(OAc)2.
4- Arylcoumarins可以以良好至高产率容易获得的甲基或叔丁基3-(反应来制备ö -hydroxyaryl)
丙烯酸酯与芳基
碘化物和在
溴化物Ñ -Bu 4 NOAC / Ñ -Bu 4在100℃下NBR混合物在Pd(OAc)2的存在。