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.
N-亚乙基-叔丁胺用二异丙基氨基锂去质子化,然后与三氟乙酸乙酯缩合,得到4-叔丁基氨基-1,1,1-三氟丁-3-烯-2-酮。当在弱酸性条件下用苯胺处理后一化合物时,会发生氨基取代基的交换。当在三氯化磷的存在下加热时,所得的4-苯胺基-1,1,1-三氟丁-3-烯-2-酮经过侧链的N →邻位移位,然后环化和脱水,得到2-(三氟甲基)喹啉。