Direct and Efficient Synthesis of Pyrrole-3-carbaldehydes by Vilsmeier-Haack Formylation of Pyrroles with Sterically Crowded Amides
作者:Mikhail Kuznetsov、Petr Ilyin、Alena Pankova
DOI:10.1055/s-0031-1290763
日期:2012.5
Abstract A simple and convenient synthetic method to prepare N-substituted pyrrole-3-carbaldehydes by Vilsmeier–Haack formylation of pyrroles using sterically crowded formamides was developed. The dependence of the formylation regioselectivity on steric features of substrates and reagents is discussed. A simple and convenient synthetic method to prepare N-substituted pyrrole-3-carbaldehydes by Vilsmeier–Haack
摘要 开发了一种简单方便的合成方法,该方法通过使用空间拥挤的甲酰胺,通过Vilsmeier-Haack对吡咯进行甲酰化来制备N-取代的吡咯3-甲醛。讨论了甲酰化区域选择性对底物和试剂空间特征的依赖性。 开发了一种简单方便的合成方法,该方法通过使用空间拥挤的甲酰胺,通过Vilsmeier-Haack对吡咯进行甲酰化来制备N-取代的吡咯3-甲醛。讨论了甲酰化区域选择性对底物和试剂空间特征的依赖性。