Pd(OAc)2 catalyzed C–H activation of 1,3,4-oxadiazoles and their direct oxidative coupling with benzothiazoles and aryl boronic acids using Cu(OAc)2 as an oxidant
作者:N. Salvanna、Gandolla Chinna Reddy、Biswanath Das
DOI:10.1016/j.tet.2012.12.080
日期:2013.3
The first direct oxidative coupling of 1,3,4-oxadiazoles with benzothiazoles has been accomplished using Pd(OAc)2 as a catalyst and Cu(OAc)2 as an oxidant. The similar combination of the catalyst and the oxidant has also been applied for direct arylation of 1,3,4-oxadiazoles with aryl boronic acids. Several novel oxadiazole derivatives have been prepared in high yields following both the methods.
使用Pd(OAc)2作为催化剂和Cu(OAc)2作为氧化剂已经实现了1,3,4-恶二唑与苯并噻唑的首次直接氧化偶联。催化剂和氧化剂的类似组合也已用于将1,3,4-恶二唑与芳基硼酸直接芳基化。两种方法都以高收率制备了几种新的恶二唑衍生物。