作者:Tang, Quan、Wang, Hua、Long, Tianyu、Kong, Han-Han、Yang, Qing-Qing、Huang, Nianyu、Wang, Long
DOI:10.1055/a-2341-9185
日期:——
A metal-free synthesis of 2-benzylideneindolin-3-ones through a formal [4+1] annulation from o-azidobenzaldehydes and terminal alkynes has been developed. The method features operational simplicity, mild reaction conditions, and ready availability of starting materials. A broad range of 2-benzylideneindolin-3-ones were prepared in moderate to excellent yields. Mechanistic studies indicated that the
已经开发出通过邻叠氮基苯甲醛和末端炔烃的正式[4+1]环化来无金属合成2-亚苄基吲哚啉-3-酮。该方法具有操作简单、反应条件温和、起始原料易得等特点。以中等至优异的产率制备了多种 2-亚苄基二氢吲哚-3-酮。机理研究表明该反应可能通过亲核加成/重排/叠氮-烯烃环加成途径进行,生成2-亚苄基吲哚啉-3-酮。