Knoevenagel Condensation between C-glycoside and Active Methylene Compounds without Catalysts
作者:Xiaomin Gu、Zhijie Fang
DOI:10.3184/174751916x14762012580355
日期:2016.11
based aromatic aldehyde and cyclic active methylene compounds such as barbituric acid, thiobarbituric acid, 1,3-dimethylbarbituric acid, 5,5-dimethyl-1,3-cyclohexanedione, 2,2-dimethyl-1,3-dioxane-4,6-dione and 3-methyl-1-phenyl-2-pyrazolin-5-one has been developed, to give a series of unusual fused heterocyclic compounds. The structures of all the new compounds were established by the spectral data
基于 C-糖苷的芳香醛与环状活性亚甲基化合物(例如巴比妥酸、硫代巴比妥酸、1,3-二甲基巴比妥酸、5,5-二甲基-1,3-环己二酮、2,2-二甲基-)之间的 Knoevenagel 缩合反应1,3-dioxane-4,6-dione 和 3-methyl-1-phenyl-2-pyrazolin-5-one 已被开发出来,得到了一系列不寻常的稠合杂环化合物。所有新化合物的结构均由光谱数据确定。这种不使用任何催化剂的方法具有操作简单和对环境影响最小的优点。