Palladium/Copper Co-catalyzed Oxidative C–H/C–H Carbonylation of Diphenylamines: A Way To Access Acridones
作者:Jiangwei Wen、Shan Tang、Fan Zhang、Renyi Shi、Aiwen Lei
DOI:10.1021/acs.orglett.6b03356
日期:2017.1.6
palladium/copper co-catalyzed oxidativedoubleC(sp2)–H functionalization/carbonylation of diphenylamines for synthesis of acridones has been developed. This method utilizes readily available starting materials and mild reaction conditions. The protocol provides a simple, efficient, and atom-economic way to access acridones. Notably, the present protocol has excellent functional group tolerance and application
Copper-Catalyzed Aerobic Oxidative CH and CC Functionalization of 1-[2-(Arylamino)aryl]ethanones Leading to Acridone Derivatives
作者:Jipan Yu、Haijun Yang、Yuyang Jiang、Hua Fu
DOI:10.1002/chem.201204169
日期:2013.3.25
Efficient copper‐catalyzedaerobicoxidative CH and CC functionalization of 1‐[2‐(arylamino)aryl]ethanones leading to acridones has been developed. The procedure involves cleavage of aromatic CH and acetyl CC bonds with intramolecular formation of a diarylketone bond. The protocol uses inexpensive Cu(O2CCF3)2 as catalyst, pyridine as additive, and economical and environmentally friendly oxygen
The reaction of o-aminoacetophenones and arylboronic acids catalyzed by copper(II) salts in the presence of pyridine under an O2 atmosphere provides a general and efficient one-pot preparation of biologically interesting acridones. This relay reaction comprises an intermolecular Suzuki cross-coupling, intramolecular oxidative C(sp3)–H amination, and C(sp2)–H activation with simultaneous rearrangement