Fe(HSO4)3(FHS) was used as an efficient catalyst for the heterogeneous addition of a series of benzylic and allylic alcohols to various β-dicarbonyl compounds, which afforded moderate to excellent yields of C-alkylated products in 1,2-dichloroethane. In comparison with the previous methods, the present research surprisingly exhibited higher reaction yields without formation of any by-products which could be formed by self-condensation of alcohols. Moreover, the catalyst can be readily recovered and reused up to five times with almost maintained reactivity and yields.
将 Fe(HSO4)3(FHS)作为一种高效催化剂,用于将一系列
苄醇和
烯丙醇与各种 β-二羰基化合物进行异相加成,在 1,2
二氯乙烷中可获得中等至极好产率的 C-烷基化产物。与之前的方法相比,本研究出人意料地显示出更高的反应产率,且不会形成任何副产物,而副产物可能是由醇自缩合形成的。此外,该催化剂可随时回收并重复使用五次,反应活性和产率几乎保持不变。