Copper-catalyzed sp3-carbon radical/carbamoyl radical cross coupling: A direct strategy for carbamoylation of 1,3-dicarbonyl compounds
作者:Xu-Ping Yan、Cheng-Kun Li、Shao-Fang Zhou、Adedamola Shoberu、Jian-Ping Zou
DOI:10.1016/j.tet.2020.131342
日期:2020.7
radical cross-coupling protocol for the construction of C(sp3)-C(O) bond is described. This provides a straightforward method for synthesis of 2-carbamoyl-1,3-dicarbonyl compounds in good to excellent yields under mild conditions. Mechanistic studies confirms the generation of both carbamoyl and C(sp3)-centered radicals directly fromoxidation of C(sp3)-H bond of formamides and 1,3-dicarbonyl compounds, respectively