反应详情

To a suspension of 4-amino-benzamide (1.00 g, 7.34 mmol) in 50 mL of 1:4 CH3CN/DCM at 0° C. was added N-bromosuccinimide (NBS) (1.31 g, 7.34 mmol) in 20 mL of 1:1 CH3CN/DCM. The mixture was warmed to RT and stirred for 16 h under Ar. Treated with 100 mL of EtOAc, the mixture was washed with H2O (2×30 mL), brine (20 mL) and dried (Na2SO4). The organic solvent was evaporated in vacuo and the residue was triturated with DCM to give 1.45 g (92%) of the title compound as a faint yellow solid. Mass spectrum (ESI, m/z): Calcd. for C7H7BrN2O, 215.0 (M+H), found 215.1.

1. washthe mixture was washed with H2O (2×30 mL), brine (20 mL)
2. dry with materialdried (Na2SO4)
3. customThe organic solvent was evaporated in vacuo
4. customthe residue was triturated with DCM