Continuous-flow synthesis of highly functionalized imidazo-oxadiazoles facilitated by microfluidic extraction
作者:Ananda Herath、Nicholas D P Cosford
DOI:10.3762/bjoc.13.26
日期:——
A versatile continuous-flow synthesis of highly functionalized 1,2,4-oxadiazoles starting from carboxylic acids is reported. This process was applied to the multistep synthesis of imidazo[1,2-a]pyridin-2-yl-1,2,4-oxadiazoles, using a three reactor, multistep continuous-flow system without isolation of intermediates. This continuous-flow method was successfully combined with a single-step liquid-liquid
报道了从羧酸开始的高官能化的1,2,4-恶二唑的多用途连续流合成。使用三反应器多步连续流系统,无需分离中间体,即可将该方法应用于咪唑并[1,2-a]吡啶-2--2-基-1,2,4-恶二唑的多步合成。此连续流方法已成功与单步液-液微萃取单元结合使用,以除去高沸点极性溶剂和杂质,并以高纯度提供了目标化合物,并且具有优异的总收率。