5-bromo-2-(trifluoromethyl)aniline

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:120.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a mixture of 5-bromo-2-(trifluoromethyl)aniline (3.0 g, 12.6 mmol), glycerol (4.64 g, 50.0 mmol), and ferrous sulfate (0.56 g, 2.0 mmol) was added conc. sulfuric acid (2.2 mL) dropwise. The reaction mixture was heated at 120° C. for 4 hr. After cooled to RT, the reaction was diluted with ethyl acetate (150 mL), and 2N aq. NaOH was introduced to adjust pH about 13. The organic layer was separated and washed with brine and dried over Na2SO4 and evaporated to give the crude product, which was purified with flash column chromatography to give 5-bromo-8-(trifluoromethyl)quinoline (1.2 g, 48%). After cooled to RT was introduced The organic layer was separated washed with brine dried over Na2SO4 evaporated to give the crude product, which was purified with flash column chromatography

反応条件: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a suspension of 4-bromo-2-nitro-1-(trifluoromethyl)benzene (4.0 g, 14.9 mmol) in ethanol (230 mL), THF (85 mL), and water (40 mL) was added ammonium chloride (1.0 g, 18.8 mmol) and ferrous powder (5.06 g, 90 mmol). The resulting mixture was heated at 80° C. for 1 hr and the progress of the reaction was monitored by TLC. Upon complete consumption of staring material, the reaction mixture was filtered off while it was hot. The filtrate was evaporated under vacuum and the crude residue was diluted with ethyl acetate (100 mL) and washed with water (3×50 mL). The combined organic layer was washed with brine, dried over Na2SO4 and evaporated under vacuum to afford 5-bromo-2-(trifluoromethyl)aniline as a solid (3.2 g, 90%). Upon complete consumption of staring material the reaction mixture was filtered off while it The filtrate was evaporated under vacuum the crude residue was diluted with ethyl acetate (100 mL) washed with water (3×50 mL) The combined organic layer was washed with brine dried over Na2SO4 evaporated under vacuum

反応条件: temp:120.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a mixture of 5-bromo-2-(trifluoromethyl)aniline (3.0 g, 12.6 mmol), glycerol (4.64 g, 50.0 mmol), and ferrous sulfate (0.56 g, 2.0 mmol) was added conc. sulfuric acid (2.2 mL) dropwise. The reaction mixture was heated at 120° C. for 4 hr. After cooled to RT, the reaction was diluted with ethyl acetate (150 mL), and 2N aq. NaOH was introduced to adjust pH about 13. The organic layer was separated and washed with brine and dried over Na2SO4 and evaporated to give the crude product, which was purified with flash column chromatography to give 5-bromo-8-(trifluoromethyl)quinoline (1.2 g, 48%). After cooled to RT was introduced The organic layer was separated washed with brine dried over Na2SO4 evaporated to give the crude product, which was purified with flash column chromatography

反応条件: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a suspension of 4-bromo-2-nitro-1-(trifluoromethyl)benzene (4.0 g, 14.9 mmol) in ethanol (230 mL), THF (85 mL), and water (40 mL) was added ammonium chloride (1.0 g, 18.8 mmol) and ferrous powder (5.06 g, 90 mmol). The resulting mixture was heated at 80° C. for 1 hr and the progress of the reaction was monitored by TLC. Upon complete consumption of staring material, the reaction mixture was filtered off while it was hot. The filtrate was evaporated under vacuum and the crude residue was diluted with ethyl acetate (100 mL) and washed with water (3×50 mL). The combined organic layer was washed with brine, dried over Na2SO4 and evaporated under vacuum to afford 5-bromo-2-(trifluoromethyl)aniline as a solid (3.2 g, 90%). Upon complete consumption of staring material the reaction mixture was filtered off while it The filtrate was evaporated under vacuum the crude residue was diluted with ethyl acetate (100 mL) washed with water (3×50 mL) The combined organic layer was washed with brine dried over Na2SO4 evaporated under vacuum