The first one-pot ambient-temperature synthesis of 1,2,4-oxadiazoles from amidoximes and carboxylic acid esters
作者:Sergey Baykov、Tatyana Sharonova、Anton Shetnev、Sergey Rozhkov、Stanislav Kalinin、Alexey V. Smirnov
DOI:10.1016/j.tet.2017.01.007
日期:2017.2
The first one-pot room-temperature protocol for the synthesis of 3,5-disubstituted-1,2,4-oxadiazoles via the condensation between amidoximes and carboxylic acid esters in superbase medium MOH/DMSO is reported. A broad spectrum of alkyl, aryl and hetaryl amidoximes and esters was examined. This reaction route provides convenient access to 1,2,4-oxadiazoles, which is highly desirable because in the light
据报道,第一个单锅室温规程是通过在超碱性介质MOH / DMSO中通过a肟和羧酸酯之间的缩合反应合成3,5-二取代-1,2,4-恶二唑。检查了烷基,芳基和杂芳基肟和酯的广谱光谱。该反应途径提供了方便地获得1,2,4-恶二唑的途径,这是非常需要的,因为鉴于这种特权支架,公认其是新型治疗剂和高科技材料设计的重要核心。