mechanism is proposed in which a single InI center acts as a dual catalyst to activate both reagents sequentially. Contrary to the classic γ-selectivity of allylsilanes (Hosomi−Sakurai reaction), this InI-catalyzed borono variant displays distinct α-selectivity. Substrate scope and functional group tolerance proved to be excellent.
在I OTf中,已发现它是有效的
路易斯酸催化剂,用于用烯丙基
硼酸酯对
乙缩醛或
缩酮进行前所未有的亲核取代。提出了一种超
金属化S N 1机制,其中单个In I中心充当双重催化剂,以依次激活两种试剂。与烯丙基
硅烷的经典γ选择性(Hosomi-Sakurai反应)相反,此In I催化的
硼烷变体表现出独特的α选择性。底物范围和官能团耐受性被证明是极好的。