反应详情

温度

0 °C

To a solution of benzene-1,2-diamine (100 g, 0.93 mol) in dichloromethane (1 L) at 0° C. was added acetic anhydride (87 mL, 0.92 mol). After stirring at 0° C. for 2 hours, the mixture was stand at 0° C. for 12 hours and the precipitate was collected by filtration, washed by dichloromethane and ether, dried in air to afford the product N-(2-aminophenyl)acetamide (25 g, yield 18%). 1H NMR (400 MHz, CDCl3) δ ppm 7.14-7.26 (m, 2H), 7.04-7.08 (m, 1H), 6.78-6.81 (m, 2H), 3.86 (br s, 2H), 2.20 (s, 3H).

1. customat 0° C.
2. customfor 12 hours
3. filtrationthe precipitate was collected by filtration
4. washwashed by dichloromethane and ether
5. customdried in air