[Bis-(trifluoroacetoxy)iodo]benzene-Mediated Oxidative Direct Amination C-N Bond Formation: Synthesis of 1<i>H</i>-Indazoles
作者:Zhiguo Zhang、Yuanyuan Huang、Guoqing Huang、Guisheng Zhang、Qingfeng Liu
DOI:10.1002/jhet.2839
日期:2017.7
An efficient [bis‐(trifluoroacetoxy)iodo]benzene (PIFA)‐mediated oxidative C‐N bond formation is developed for the synthesis of 1H‐indazoles from readily available arylhydrazones. The reaction tolerates a wide range of functional groups and has broad scope of substrates. Moreover, this method is a relative green and reliable method for rapid preparation of substituted 1H‐indazoles under mild conditions