反应详情

To a stirred solution of N-(4-fluorophenyl)-2-nitrobenzamide (4.0 g, 15.4 mmol) in methanol (220 mL) and tetrahydrofuran (110 mL) was added nickel acetate tetrahydrate (7.7 g, 31 mmol). Sodium borohydride (2.3 g, 62 mmol) was added in small portions. After gas evolution had ceased, the solvent was removed in vacuo. The residue was partitioned between ethyl acetate and concentrated ammonium hydroxide, and the layers were separated. The organic phase was washed with concentrated ammonium hydroxide and saturated aqueous sodium chloride solution, dried (magnesium sulfate), filtered, and concentrated in vacuo to give 2.86 g (81%) of the title compound as an off-white solid.

1. customthe solvent was removed in vacuo
2. customThe residue was partitioned between ethyl acetate and concentrated ammonium hydroxide
3. customthe layers were separated
4. washThe organic phase was washed with concentrated ammonium hydroxide and saturated aqueous sodium chloride solution
5. dry with materialdried (magnesium sulfate)
6. filtrationfiltered
7. concentrationconcentrated in vacuo