Copper-Catalyzed Site-Selective Intramolecular Amidation of Unactivated C(sp<sup>3</sup>)H Bonds
作者:Xuesong Wu、Yan Zhao、Guangwu Zhang、Haibo Ge
DOI:10.1002/anie.201311263
日期:2014.4.1
of aliphatic amides, directed by a bidentate ligand, was developed using a copper‐catalyzed sp3 CH bond functionalization process. The reaction favors predominantly the CHbonds of β‐methyl groups over the unactivated methylene CHbonds. Moreover, a preference for activating sp3 CHbonds of β‐methyl groups, via a five‐membered ring intermediate, over the aromatic sp2 CHbonds was also observed in