Directed Cobalt-Catalyzed C–H Activation to Form C–C and C–O Bonds in One Pot via Three-Component Coupling
作者:Meng-Hui Li、Xiao-Ju Si、He Zhang、Dandan Yang、Jun-Long Niu、Mao-Ping Song
DOI:10.1021/acs.orglett.0c04122
日期:2021.2.5
Herein, we disclose an efficient cobalt-catalyzed three-component coupling of benzamides, diazo compounds, and tert-butyl hydroperoxide, which provides an efficient approach to construct C(sp2)–C(sp3) and C–O bonds in one-pot accompanied with C–H activation. This protocol features low catalyst loading (4 mol %), the avoidance of additives, and excellent functional group compatibility, providing three-component
在这里,我们公开了一种高效的钴催化的苯甲酰胺,重氮化合物和叔丁基氢过氧化物的三组分偶联,它提供了一种有效的方法来构建一个C(sp 2)-C(sp 3)和C-O键锅伴随C–H活化。该方案的特点是催化剂负载量低(4 mol%),避免了添加剂以及出色的官能团相容性,可在温和条件下(高达88%)以高收率提供三组分偶联加合物。机理研究表明,该反应可能涉及自由基过程。