Carbene-Catalyzed Formal [3+3] Cycloaddition Reaction for Access to Substituted 2-Phenylbenzothiazoles
作者:Zhibin Ni、Chengli Mou、Xun Zhu、Puying Qi、Song Yang、Yonggui Robin Chi、Zhichao Jin
DOI:10.1002/ejoc.201901773
日期:2020.1.31
carbene‐catalyzed oxidative cycloaddition reaction is developed for efficient access to multi‐functionalized 2‐phenylbenzothiazoles. A broad scope of heavily substituted arenes bearing 2‐benzothiazole groups have been prepared in good to excellent yields. The remote C(sp2)–H bond in the substituted arene products can be regioselectively activated by Pd catalysts with the direction of the 2‐benzothiazole groups
开发了碳烯催化的氧化环加成反应,可有效利用多官能化的2-苯基苯并噻唑。制备了范围广泛的带有2-苯并噻唑基团的重取代芳烃,收率良好至优异。取代的芳烃产物中的远端C(sp 2)–H键可以被Pd催化剂沿2-苯并噻唑基团的方向进行区域选择性活化。