Herein, a straightforward and regioselective avenue to angular azolo[1,5-a]pyrimidine derivatives via the three-component cyclization of aldehydes and α-aminoazoles with cycloketones is presented. The initiation of the condensation reaction between aldehydes and amines is key to the achievement of high regioselectivity in this process through bypassing the general aldol condensation of aldehydes and
在此,提出了通过醛和α-
氨基唑与环酮的三组分环化来制备角偶氮并[1,5- a ]
嘧啶衍
生物的直接且区域选择性的途径。醛和胺之间缩合反应的引发是通过绕过醛和酮的一般醛醇缩合而在该过程中实现高区域选择性的关键。值得注意的是,这种简单且可扩展的方案已成功应用于几种结构多样的
天然产物和药物的衍生化。