Groebke‐Blackburn‐Bienaymé Multicomponent Reaction Catalysed by Reusable Brønsted‐Acidic Ionic Liquids
作者:Nicolas S. Anjos、Agáta I. Chapina、Ana R. Santos、Peter Licence、Luiz S. Longo
DOI:10.1002/ejoc.202200615
日期:2022.10.26
Groebke-Blackburn-Bienaymé multicomponentreactions can be efficiently catalysed by Brønsted acidic ionicliquids for the synthesis of imidazo[1,2-a]pyridines and imidazo[2,1-b]thiazoles in moderate to excellent yields (42–93 %), either under thermal or microwave heating. The homogeneous acidic catalyst can be recycled and reused in four consecutive reaction cycles.
Brønsted 酸性离子液体可有效催化 Groebke-Blackburn-Bienaymé 多组分反应合成咪唑并[1,2- a ]吡啶和咪唑并[ 2,1- b ]噻唑,产率适中(42-93%) ,在热或微波加热下。均相酸性催化剂可以在四个连续的反应循环中回收和重复使用。
A New Heterocyclic Multicomponent Reaction For the Combinatorial Synthesis of Fused 3-Aminoimidazoles
When general and reliable, multicomponent reactions are among the most powerful tools in modern drug discovery. The principle of chemical ligation of reactive partners (see reaction scheme) has been employed to find a new, highly efficient synthesis of fused 3-aminoimidazoles.