Iron-Catalyzed Directed C(sp<sup>2</sup>)–H and C(sp<sup>3</sup>)–H Functionalization with Trimethylaluminum
作者:Rui Shang、Laurean Ilies、Eiichi Nakamura
DOI:10.1021/jacs.5b04818
日期:2015.6.24
Conversion of a C(sp(2))-H or C(sp(3))-H bond to the corresponding C-Me bond can be achieved by using AlMe3 or its air-stable diamine complex in the presence of catalytic amounts of an inorganic iron(III) salt and a diphosphine along with 2,3-dichlorobutane as a stoichiometric oxidant. The reaction is applicable to a variety of amide substrates bearing a picolinoyl or 8-aminoquinolyl directing group
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