The reaction of iminium triflates 2 and 7 with various aromaticamines were investigated. The 2-Rf-substituted quinolines 3 and 8 were prepared in excellent yields by the reaction of 2 and 7, respectively, with substituted anilines. The reactions of 2 and 7 with diarylamines proceeds, suprisingly, to afford the corresponding 3-Rf-substituted cinnamaldehydes 4 and 9.
2-(Trifluoromethyl)quinolines from anilines: A novel mode of isomerization and cyclization
作者:Holger Keller、Manfred Schlosser
DOI:10.1016/0040-4020(96)00168-8
日期:1996.3
in the presence of phosphoryl trichloride, the resulting 4-anilino-1,1,1-trifluorobut-3-en-2-ones undergo an N → ortho shift of the side chain followed by cyclization and dehydration to afford 2-(trifluoromethyl)quinolines.
Novel quinoline derivatives, pharmaceutical compositions containing such compounds, and method for the preparation of these compounds
申请人:ACF CHEMIEFARMA NV
公开号:EP0035820B1
公开(公告)日:1984-10-10
2-Position-Selective C–H Perfluoroalkylation of Quinoline Derivatives
作者:Takahiro Shirai、Motomu Kanai、Yoichiro Kuninobu
DOI:10.1021/acs.orglett.8b00339
日期:2018.3.16
We developed 2-position-selective, direct C–H trifluoromethylation, pentafluoroethylation, and heptafluoropropylation of quinolinederivatives. Regioselective transformation was achieved without derivatization of the quinolines. The reaction proceeded at room temperature with high functional group tolerance, even in gram scale. Notably, the reaction was applicable to substrates containing a functional