thermal rearrangement in water. On the basis of the above findings, an eco-friendly method was applied to prepare quinazolin-4(1H)-one derivatives from anthranilamides and a number of (hetero)aryl aldehydes. Heating the aqueous mixture of starting compounds to 90 °C resulted in the products in 81–94% yields. All products precipitated from the reaction mixture and were isolated by simply filtration. No further
用
苯甲醛对 N-未取代或 N-甲基邻
氨基苯甲酰胺进行机械
化学处理,产生了它们的席夫碱衍
生物,这些衍
生物可以通过在
水中的热重排轻松环化为相应的 2苯基-2,3-二氢
喹唑啉酮。在上述研究结果的基础上,采用环保方法从邻
氨基苯甲酰胺和许多(杂)芳基醛制备
喹唑啉-4(1H)-酮衍
生物。将起始化合物的含
水混合物加热至 90 °C,产物的产率为 81-94%。所有产物均从反应混合物中沉淀出来,并通过简单过滤分离。不需要进一步的后处理或纯化。