反应详情

温度

90 °C

To a suspension of N-(2-nitrobenzylidene)-4-(trifluoromethyl)aniline (2.7 g, 9.18 mmol) and Borontrifluoride etherate (289 μL) in anhydrous acetonitrile was added isobutene (16 mL, pre-cooled to −78° C.) at ice-bath. After addition, the resulting mixture was stirred at 90° C. in sealed tube overnight. The solvent was removed under reduced pressure. The residue was purified by silica gel column chromatography to give 4,4-dimethyl-2-(2-nitrophenyl)-6-(trifluoromethyl)-1,2,3,4-tetrahydroquinoline (2.56 g, yield 80%). LC/MS m/e obsd. (ESI+) [(M+H)+] 351.1.

1. additionAfter addition
2. customThe solvent was removed under reduced pressure
3. customThe residue was purified by silica gel column chromatography