One-pot synthesis of 3,5-disubstituted 1,2,4-oxadiazoles containing an alkenyl moiety
作者:Vera V. Sidneva、Marina V. Tarasenko、Evgeniy R. Kofanov
DOI:10.1007/s10593-022-03096-5
日期:2022.7
A one-pot method was developed for the preparation of 3,5-disubstituted 1,2,4-oxadiazoles containing an alkenyl fragment, which entails the preparation of O-acylamidoximes and their subsequent cyclization using N,N′-dimethylacetamide as a solvent. The proposed method allows to significantly reduce the overall synthesis time by carrying out all steps sequentially in a single reactor, avoiding the step
开发了一种制备含有烯基片段的 3,5-二取代 1,2,4-恶二唑的一锅法,该方法需要制备O-酰基酰胺肟,然后使用N , N'-二甲基乙酰胺作为溶剂进行环化. 所提出的方法允许通过在单个反应器中依次进行所有步骤来显着减少总合成时间,避免了中间体O-酰基氨基肟的分离步骤,从而导致产生 5-alkenyl-1,2,4-oxadiazoles在高产。