反应详情

温度

70 °C

3,5-Dibromo-imidazo[1,2-a]pyrazine (D) (200 mg, 0.722 mol) was added to 2M ethylamine in THF (10.8 ml, 30 eq.). The mixture was heated at 70° C. in sealed tube for 8 hr. The mixture was then cooled to rt, and diluted with DCM (100 ml) and water (50 ml). The organic layer was washed with brine, dried and concentrated. The residue was purified on a silica gel column to give 92.2 mg (yield 53%) of (3-bromo-imidazo[1,2-a]pyrazin-8-yl)-ethyl-amine as a crystalline solid.

1. temperatureThe mixture was then cooled to rt
2. washThe organic layer was washed with brine
3. customdried
4. concentrationconcentrated
5. customThe residue was purified on a silica gel column