Silver-catalyzed tandem radical acylarylation of cinnamamides in aqueous media
作者:Hua Yang、Li-Na Guo、Xin-Hua Duan
DOI:10.1039/c4ra08529a
日期:——
A mild silver-catalyzed regioselective radical addition/cyclization reaction of cinnamamides with α-oxocarboxylicacids has been developed. The procedure proceeded well under very mild conditions, leading to a diverse range of 3-acyl-4-aryldihydroquinolin-2(1H)-ones in moderate to good yields.
An efficient, silver-induced tandem radical addition/cyclization for the synthesis of 3,4-dihydroquinolinones is presented, which exhibits a good functional group tolerance. The reaction is easy to operate and amenable to a multigram-scale synthesis. Additionally, this work illustrates the formation of a key skeleton for the synthesis of biologically interesting 3,4-dihydroquinolinone alkaloids.
Copper-catalyzed tandem oxidative cyclization of cinnamamides with benzyl hydrocarbons through cross-dehydrogenative coupling
作者:Shi-Liu Zhou、Li-Na Guo、Shun Wang、Xin-Hua Duan
DOI:10.1039/c4cc00637b
日期:——
The copper-catalyzed tandem oxidative cyclization of cinnamamides with benzyl hydrocarbons through the direct cross-dehydrogenative coupling of sp(3) and sp(2) C-H bonds has been developed. Satisfactorily, ethers, alcohols and alkanes could also be used instead of benzyl hydrocarbons in this transformation, which allows rapidaccess to diverse dihydroquinolinones in one step.