反应详情

Bromine (0.895 mL, 15.5 mmol) was added to the solution of quinoxalin-2-ol (1.5 g, 10.3 mmol) in HOAc (15 mL), the mixture was stirred at r.t. for 6 h, and the precipitate was collected and washed with ethyl ether and dried to afford 7-bromoquinoxalin-2-ol as a solid in 90% yield (2 g).

1. customthe precipitate was collected
2. washwashed with ethyl ether
3. customdried