A series of highly substituted 2-perfluoroalkyl-3-iodoquinolines are prepared by two different methods in good to excellent yields under mild reaction conditions. The first method involves iodocyclization of perfluoroalkyl propargyl imines with I2-CAN. The second method involves iodocyclization of perfluoroalkyl propargyl amines using I2 and ICl. The perfluoroalkyl propargyl amines are prepared in
enantioselective synthesis of chiral fluorinated propargylamines was developed through phosphoric acid and ruthenium-catalyzed chemoselective biomimetic hydrogenation of the carbon–nitrogen double bond of fluorinated alkynyl ketimines in the presence of a carbon–carbon triple bond. This reaction features high chemoselectivity and slow background reaction. In addition, selective transformations of the chiral fluorinated
An efficient synthesis of 2-trifluoromethyl quinolines via gold-catalyzed cyclization of trifluoromethylated propargylamines
作者:Mei Zhu、Weijun Fu、Guanglong Zou、Chen Xun、Dongsheng Deng、Baoming Ji
DOI:10.1016/j.jfluchem.2011.11.002
日期:2012.3
A highly efficient cyclization reaction of trifluoromethylated propargylamines leading to 2-trifluoromethyl-4-aryl quinolines was developed by using gold(I) as a catalyst under extremely mild conditions.