The combination of Pd catalyst and Xantphos ligand in the presence of Et(3)B nicely promotes the allylation of aldehydes with conjugated dienes to provide dienyl homoallylalcohols in excellent yields. The reaction occurs selectively at the C-C double bond bearing higher electron density.
在 Et(3)B 存在下,Pd 催化剂和 Xantphos 配体的组合很好地促进了醛与共轭二烯的烯丙基化,以优异的产率提供二烯基高烯丙醇。该反应选择性地发生在具有较高电子密度的 CC 双键上。