Direct Hiyama Cross-Coupling of (Hetero)arylsilanes with C(sp<sup>2</sup>)–H Bonds Enabled by Cobalt Catalysis
作者:Ming-Zhu Lu、Xin Ding、Changdong Shao、Zhengsong Hu、Haiqing Luo、Sanjun Zhi、Huayou Hu、Yuhe Kan、Teck-Peng Loh
DOI:10.1021/acs.orglett.0c00631
日期:2020.4.3
We report a chelation-assisted C–H arylation of various indoles with sterically and electronically diverse (hetero)arylsilanes enabled by cost-effective Cp*-free cobalt catalysis. Key to the success of this strategy is the judicious choice of copper(II) fluoride as a bifunctional sliane activator and catalyst reoxidant. This methodology features a broad substrate scope and good functional group compatibility
我们报道了具有成本效益的无Cp *钴催化作用使各种吲哚与空间和电子上不同的(杂)芳基硅烷进行螯合辅助的C–H芳基化。该策略成功的关键是明智地选择氟化铜(II)作为双官能链烯活化剂和催化剂再氧化剂。该方法具有广泛的底物范围和良好的官能团相容性。克规模的合成和生物活性分子的后期多样化突显了该协议的合成多功能性。