strategy for esterification of common amides using fluoride as a catalyst. This method shows high functional group tolerance, and notably it requires only a slight excess of the alcohol nucleophile, which is a rare case in transition‐metal‐free amide transformations. Moreover, this approach may provide a new understanding for further studies on esterification of amides and is expected to stimulate the development
Palladium-Catalyzed Aerobic Oxidative Coupling of Amides with Arylboronic Acids by Cooperative Catalysis
作者:Yue Li、Hongxiang Wu、Zhuo Zeng
DOI:10.1002/ejoc.201900531
日期:2019.7.23
A new conceptual method, the first fluoride and palladium co‐catalyzed conversion of amide to ester through an aerobic oxidative coupling pathway is reported. This work demonstrates the synergistic combination of fluoride and palladium catalysis as a new concept to activate inert amide N–C bonds, which may facilitate the growing utilization of amides as synthons in a variety of transformations.
Acylative Suzuki coupling of amides: acyl-nitrogen activation via synergy of independently modifiable activating groups
作者:Xijing Li、Gang Zou
DOI:10.1039/c5cc00430f
日期:——
Highly efficient Pd/PCy3-catalyzed acylative Suzuki coupling of carboxylic amides has been achieved to provide a variety of aryl ketones, including sterically hindered thus difficultly accessible ones.
Amide/Ester Cross-Coupling via C–N/C–H Bond Cleavage: Synthesis of β-Ketoesters
作者:Jiajia Chen、Devaneyan Joseph、Yuanzhi Xia、Sunwoo Lee
DOI:10.1021/acs.joc.0c02868
日期:2021.4.16
Activated primary, secondary, and tertiary amides were coupled with enolizable esters in the presence of LiHMDS to obtain good yields of β-ketoesters at room temperature. Notably, this protocol provides an efficient, mild, and high chemoselectivity method to synthesis of β-alkylketoesters using the cross-coupling between aliphatic amides and esters. Meanwhile, gram-scale secondary and primary amides reacted