Parallel synthesis of 1,2,4-oxadiazoles from carboxylic acids using an improved, uronium-based, activation
作者:Rébecca F Poulain、André L Tartar、Benoı̂t P Déprez
DOI:10.1016/s0040-4039(00)02293-0
日期:2001.2
We describe the synthesis of 1,2,4-oxadiazoles from carboxylic acids and amidoximes using 2-(1H-benzotriazole-1-yl)-1,1,3,3-tetramethyluronium tetrafluoroborate (TBTU) as an activating agent of the carboxylic acid function for the O-acylation step. This method was used for the synthesis of a library of 24 1,2,4-oxadiazoles.
我们描述了使用2-(1 H-苯并三唑-1-基)-1,1,3,3-四甲基脲四氟硼酸酯(TBTU)作为羧酸的活化剂,由羧酸和a胺肟合成1,2,4-恶二唑。O-酰化步骤的羧酸官能团。该方法用于合成24个1,2,4-恶二唑的文库。