在固－液相转移催化下二苯甲酰甲烷烷基化反应的研究

Study on the alkylation of dibenzoylmethane with solid-liquid phase transfer catalysis

在相转移催化剂聚乙二醇的存在下，以固体氢氧化钾为碱性试剂，二本甲酰甲烷与卤代烃在两酮中回流可顺利发生烷基化反应，合成了４种不同的ａ－Ｃ单取代烷基化产物。

In the presence of PEG as phase transfer catalystand solid KOH as base, dibenzoylmethane undergoesmonoalkylation with alkyl handes in acetone,four kinds of a-substituted dibenzoylmethane weresynthesized.