反应详情

To a methanol (10 mL) and an anhydrous tetrahydrofuran (50 mL) solution of 3-(1-nitro-2-naphthylamino)benzonitrile (1.60 g, 5.53 mmol) was added 10% palladium-active carbon (160 mg), and the mixture was hydrogenated for 4 hours at room temperature under atmospheric pressure. After removal of the catalyst by filtration, the solvent was removed by evaporation under reduced pressure. The residue was purified by silica gel column chromatography (hexane/ethyl acetate=7/3) to obtain the titled compound as a pale brown powder (1.06 g, yield 74%).

1. customAfter removal of the catalyst
2. filtrationby filtration
3. customthe solvent was removed by evaporation under reduced pressure
4. customThe residue was purified by silica gel column chromatography (hexane/ethyl acetate=7/3)