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4-Aminoacetophenone (1.35 g, 10.0 mmol) was dissolved in dichloromethane (10 mL) and treated with benzoyl chloride (1.74 mL, 15.0 mmol). The mixture was stirred for 16 hours at which time a white precipitate had formed. The solid was removed by filtration, washing with dichloromethane (3×20 mL) to provide 4-acetamidoacetophenone as a white sold (2.74 g). 1H NMR (200 MHz, DMSO-d6) δ 10.53 (s, 1H), 7.92 (s, 7H), 7.54 (m, 3H), 2.50 (s, 3H).

1. customhad formed
2. customThe solid was removed by filtration
3. washwashing with dichloromethane (3×20 mL)