A Direct Palladium-Catalyzed Route to Selectively Substituted Carbazoles through Sequential CC and CN Bond Formation: Synthesis of Carbazomycin A
作者:Nicola Della Ca'、Giovanni Sassi、Marta Catellani
DOI:10.1002/adsc.200800421
日期:2008.10.6
one-pot procedure for the catalytic preparation of the biologically interesting class of carbazoles. The new procedure is based on the combined catalysis of palladium and norbornene starting from o-substituted iodoarenes and N-sulfonylated or N-acetylated o-bromoanilines. A well-known member of this class, carbazomycin A, has been successfully prepared.
Reported herein is an environmentally benign electrochemical C−H bond dehydrogenative amination protocol for the construction of privileged carbazole moiety with broad generality. Preliminary mechanistic investigations implied a radical reaction pathway. Compared with traditional ionic routes, the scalable transition‐metal and exogenous‐oxidant free strategy highlighted the green and sustainable nature