Copper-catalyzed bis-arylations of alkenes leading to oxindole derivatives
作者:Liangliang Shi、Yuyuan Wang、Haijun Yang、Hua Fu
DOI:10.1039/c4ob00576g
日期:——
A simple and practical copper-catalyzed approach to oxindole derivatives by copper-catalyzed bis-arylation of N-alkyl-N-phenylacrylamides with diaryliodonium triflates has been developed under mild conditions, and the method is of tolerance towards some functional groups in the substrates.
A novel and efficient copper-catalyzed tandem oxidative cyclization of arylacrylamides with diaryliodonium salts is reported. This reaction provides a novel approach for the synthesis of oxindoles and various functional groups were well tolerated.
Electrochemical cobalt-catalyzed C–H or N–H oxidation: a facile route to synthesis of substituted oxindoles
作者:Yue Yu、Peifeng Zheng、Yuanheng Wu、Xiaoyi Ye
DOI:10.1039/c8ob02485e
日期:——
Two comparable protocols for the electrochemical cobalt-catalyzed C–H/N–H oxidation have been exploited for the synthesis of substituted oxindoles via radical pathways. The electrochemical cobalt-catalyzed system was demonstrated to be efficient and eco-friendly and avoided the use of stoichiometric oxidants to afford the arylation or alkylation products in good yields at room temperature.
Copper(I)-Catalyzed Aryl or Vinyl Addition to Electron-Deficient Alkenes Cascaded by Cationic Cyclization
作者:Bing Zhou、Wei Hou、Yaxi Yang、Huijin Feng、Yuanchao Li
DOI:10.1021/ol500033w
日期:2014.3.7
An exoselective copper-catalyzed arylation and vinylation-carbocyclization of electron-deficient alkenes was developed to provide rapid and efficient access to a variety of functionalized 3,3-disubstituted oxindoles. With this method, a highly efficient and concise formal synthesis of (+/-)-physostigmine and (+/-)-physovenine has been completed.