A new synergistic multicatalytic activation mode of eosinY has been discovered by exploiting the redox potential of its ground state and excited state. This catalytic strategy proves to be an enabling tool for visible‐light‐driven sequentialbenzylicC−Hamination and oxidation of o‐benzyl‐N‐methoxyl‐benzamides when using Selectfluor as a hydrogen atom transfer (HAT) reagent and O2 as oxidant. Efficient
Organo-cyanamides: convenient reagents for catalytic amidation of carboxylic acids
作者:Li-Jing Li、Zhong-Qiang Zhou、Zi-Kui Liu、Yuan-Yuan He、Feng-Cheng Jia、Xiao-Qiang Hu
DOI:10.1039/d2cc05826j
日期:——
An unprecedented DMAP-catalysed amidation of aryl and alkyl carboxylicacids with organo-cyanamides has been developed. Unlike the use of N-cyano-N-phenyl-p-methylbenzenesulfonamide (NCTS) as an electrophilic cyanating reagent, an unusual desulfonylation/decyanation reaction model has been disclosed for the first time. Remarkable features of this reaction include readily available substrates, simple