Expedient Synthesis of <i>N</i>-Acyl Anthranilamides and β-Enamine Amides by the Rh(III)-Catalyzed Amidation of Aryl and Vinyl C–H Bonds with Isocyanates
作者:Kevin D. Hesp、Robert G. Bergman、Jonathan A. Ellman
DOI:10.1021/ja203495c
日期:2011.8.3
A Rh(III)-catalyzed protocol for the amidation of anilide and enamide C-H bonds with isocyanates has been developed. This method provides direct and efficient syntheses of N-acyl anthranilamides, enamine amides, and pyrimidin-4-one heterocycles.
Iridium-Catalyzed Aryl C–H Sulfonamidation and Amide Formation Using a Bifunctional Nitrogen Source
作者:Meng Yu、Tao Zhang、Hitesh B. Jalani、Xunqing Dong、Hongjian Lu、Guigen Li
DOI:10.1021/acs.orglett.8b01977
日期:2018.8.17
A new strategy for the sequential formation of aryl and amidyl C–N bonds is reported. Using trichloroethoxysulfonyl azide as a bifunctional nitrogensource, Ir-catalyzed aryl C–H sulfonamidation and subsequent desulfonative amide formation proceed effectively without any need of oxidants or coupling reagents. This protocol is suitable for readily available benzamides and stable carboxylates including