Palladium-Catalyzed Tandem Nucleophilic Addition/C–H Functionalization of Anilines and Bromoalkynes for the Synthesis of 2-Phenylindoles
作者:Caijin Zeng、Songjia Fang、Shuqi Guo、Huanfeng Jiang、Shaorong Yang、Wanqing Wu
DOI:10.1021/acs.orglett.3c00137
日期:2023.3.10
A novel and efficient palladium-catalyzed annulation of anilines with bromoalkynes for the synthesis of 2-phenylindoles has been described. This approach features excellent regio- and stereoselectivities and good functional group tolerance. Preliminary mechanistic studies indicate that anilines undergo anti-nucleophilic addition to bromoalkynes to generate (Z)-N-(2-bromo-1-phenylvinyl) anilines, followed
已经描述了用于合成 2-苯基吲哚的新型和有效的钯催化的苯胺与溴炔的环化。这种方法具有出色的区域选择性和立体选择性以及良好的官能团耐受性。初步的机理研究表明,苯胺对溴代炔烃进行反亲核加成反应生成 ( Z )- N -(2-bromo-1-phenylvinyl) 苯胺,然后依次进行 C-H 官能化以提供不同的取代 2-苯基吲哚。该方法为构建各种生物活性化合物提供了潜在的应用。