6-溴-2-氟-3-甲基苯胺

反应条件: temp:85.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 6-Bromo-2-fluoro-3-methylaniline (9.00 g, 44.1 mmol), which had been obtained in Reference example 4(4a), was dissolved in a 1:1 mixture (130 mL) of N,N-dimethyl formamide and methanol, and added with [1,1′-bis(diphenylphosphino)ferrocene]palladium (II) dichloride-dichloromethane complex (10.8 g, 13.2 mmol) and N,N-diisopropylethylamine (23 mL, 132.3 mmol). The mixture was vigorously stirred at 85° C. for 2 hours under a carbon monoxide atmosphere. The reaction solution was cooled to room temperature, added with ethyl acetate and water, filtered using Millicup (registered trademark)-LH, and washed with ethyl acetate. The filtered solution was extracted with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure. The residue was purified by silica gel chromatography (n-hexane/ethyl acetate=4/1) to give the title compound as a colorless solid (5.70 g, yield 71%). The reaction solution was cooled to room temperature filtered washed with ethyl acetate The filtered solution was extracted with ethyl acetate The organic layer was washed with saturated brine dried over anhydrous magnesium sulfate The solvent was distilled off under reduced pressure The residue was purified by silica gel chromatography (n-hexane/ethyl acetate=4/1)

反应条件: temp:85.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 6-Bromo-2-fluoro-3-methylaniline (9.00 g, 44.1 mmol), which had been obtained in Reference example 6 (6a), was dissolved in 1:1 mixture (130 mL) of N,N-dimethyl formamide and methanol, and added with [1,1′-bis(diphenylphosphino)ferrocene]palladium (II) dichloride-dichloromethane complex (10.8 g, 13.2 mmol) and N,N-diisopropylethylamine (23 mL, 132.3 mmol). The mixture was vigorously stirred at 85° C. for 2 hours under a carbon monoxide atmosphere. The reaction solution was cooled to room temperature, added with ethyl acetate and water, filtered using Millicup (registered trademark)-LH, and washed with ethyl acetate. The filtered solution was extracted with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure. The residue was purified by silica gel chromatography (n-hexane/ethyl acetate=4/1) to give the title compound as a colorless solid (5.70 g, yield 71%). The reaction solution was cooled to room temperature filtered washed with ethyl acetate The filtered solution was extracted with ethyl acetate The organic layer was washed with saturated brine dried over anhydrous magnesium sulfate The solvent was distilled off under reduced pressure The residue was purified by silica gel chromatography (n-hexane/ethyl acetate=4/1)