Palladium‐Catalyzed Silacyclization of (Hetero)Arenes with a Tetrasilane Reagent through Twofold C−H Activation
作者:Dingyi Wang、Mingjie Li、Xiangyang Chen、Minyan Wang、Yong Liang、Yue Zhao、Kendall N. Houk、Zhuangzhi Shi
DOI:10.1002/anie.202015117
日期:2021.3.22
The use of an operationally convenient and stable silicon reagent (octamethyl‐1,4‐dioxacyclohexasilane, ODCS) for the selective silacyclization of (hetero)arenes via twofold C−H activation is reported. This method is compatible with N‐containing heteroarenes such as indoles and carbazoles of varying complexity. The ODCS reagent can also be utilized for silacyclization of other types of substrates,
据报道,使用了一种操作方便且稳定的硅试剂(八甲基-1,4-二氧杂环六硅烷,ODCS)来通过双重CH活化选择性(杂环)芳烃进行硅烷化。该方法与各种复杂度的含氮杂芳烃(如吲哚和咔唑)兼容。ODCS试剂也可用于硅烷基化其他类型的底物,包括叔膦和卤代芳基。一系列的机械实验和密度泛函理论(DFT)计算被用来研究这种双重CH活化过程的优选途径。