Nickel-Catalyzed Site-Selective Amidation of Unactivated C(sp<sup>3</sup>)H Bonds
作者:Xuesong Wu、Yan Zhao、Haibo Ge
DOI:10.1002/chem.201403356
日期:2014.7.28
nickel‐catalyzed CH bond functionalization process with the assistance of a bidentatedirectinggroup. The reaction favors the CHbonds of β‐methyl groups over the γ‐methyl or β‐methylene groups. Additionally, a predominant preference for the β‐methyl CHbonds over the aromatic sp2 CHbonds was observed. Moreover, this process also allows for the effective functionalization of benzylic secondary sp3 CH bonds
C–N and C–O Bond Formation in Copper-Catalyzed/Mediated sp<sup>3</sup> C–H Activation: Mechanistic Studies from Experimental and Computational Aspects
作者:Yuhang Yang、Fei Cao、Linbin Yao、Tao Shi、Bencan Tang、Yoichiro Kuninobu、Zhen Wang
DOI:10.1021/acs.joc.0c01038
日期:2020.8.7
studies on Cu-catalyzed/mediated sp3 C–Hamidation and acetoxylation are investigated from experimental and computational aspects. The concerted metalation–deprotonation (CMD) mechanism rather than a radical-involved pathway is proved to occur in amidation and acetoxylation reactions, and this is the rare example of the CMD mechanism involved in the more challenging sp3 C–H activations. Theoretical calculations