反应详情

温度

0 °C

To a 0° C. cooled stirred solution of 6-(3-fluorophenyl)pyrazin-2-ylamine (0.5 g, 2.64 mmol) in a mixture of DMSO (10 mL) and water (0.25 mL), was added N-bromosuccinimide (0.518 g, 2.90 mmol) in portions. After stirring for 5 h, the mixture was poured into water, the precipitate collected by filtration, washed with water and dried to give the title compound as a yellow solid (0.60 g, 85%).

1. filtrationthe precipitate collected by filtration
2. washwashed with water
3. customdried