We report an unexpected dearomative periphery modification strategy for transforming quinolinium salts into structurally crowded pyrrolidine–tetrahydroquinoline polycyclic systems with complete regio- and diastereoselectivity. Importantly, the reaction pathway was regulated by simply tuning the substituents, achieving substituent-directed divergent synthesis. The notable features of this transformation
我们报告了一种出人意料的去
芳烃外围修饰策略,可将
喹啉盐转化为结构拥挤的
吡咯烷-
四氢喹啉多环体系,具有完全的区域和非对映选择性。重要的是,通过简单地调整取代基来调节反应途径,实现取代基导向的发散合成。这种转化的显着特点包括容易获得的起始材料、绿色条件、简单的后处理程序、高成键和成环效率以及取代基导向的多样化合成。