Room-temperature synthesis of pharmaceutically important carboxylic acids bearing the 1,2,4-oxadiazole moiety
作者:Marina Tarasenko、Nikolay Duderin、Tatyana Sharonova、Sergey Baykov、Anton Shetnev、Alexey V. Smirnov
DOI:10.1016/j.tetlet.2017.08.020
日期:2017.9
An efficient and mild one-pot protocol has been developed for the synthesis of 1,2,4-oxadiazoles via the reaction of amidoximes with dicarboxylic acidanhydrides in a NaOH/DMSO medium. The method allows the synthesis of diversely substituted carboxylic acids bearing the 1,2,4-oxadiazole motif, – a popular building block for pharmaceutical research, in moderate to excellent yields. The reaction scope