An efficient and practical palladium-catalyzed aerobic oxidative approach to afford functionalized 2-substituted quinolines in moderate to good yields from readily available allylbenzenes with aniline is developed. The present annulation process has high functional-group tolerance and high atom economy, making it a valuable and practical method in synthetic and medicinal chemistry. Moreover, this transformation
A Novel Approach to 2-Arylated Quinolines: Electrocyclization of Alkynyl Imines via Vinylidene Complexes
作者:Kenichiro Sangu、Kohei Fuchibe、Takahiko Akiyama
DOI:10.1021/ol036190a
日期:2004.2.1
[reaction: see text] Alkynyl imines underwent [4 + 2] electrocyclization in the presence of 20 mol % W(CO)(5)(THF) to give 2-arylated quinolines in good yields. A deuterium labeling study suggests that the reaction proceeds via a tungsten vinylidene complex.
Palladium-catalyzed synthesis of quinolines from allyl alcohols and anilines
作者:Jingxiu Xu、Jing Sun、Jinwu Zhao、Bin Huang、Xiaohan Li、Yulun Sun
DOI:10.1039/c7ra06425j
日期:——
A process for quinolinesynthesis through palladium-catalyzed oxidative cyclization of aryl allyl alcohols and anilines is described. This process works in the absence of acid, base and any other additive and has a broad substrate scope, tolerating electron-withdrawing groups such as nitryl, trifluoromethyl and so on. A series of quinolines are prepared in satisfactory yields.
Synthesis of quinolines through copper-catalyzed intermolecular cyclization reaction from anilines and terminal acetylene esters
作者:Zhilei Zheng、Guobo Deng、Yun Liang
DOI:10.1039/c6ra23858k
日期:——
A simple and convenient copper-catalyzed intermolecular cyclization reaction for the synthesis of quinolines from anilines and terminal acetylene esters has been developed. This methodology constructs the C–N and C–C bonds successively via a cascade process, and provides the desired products in moderate to good yields.