反应详情

A mixture of 1 g (3,6 mmol) of 3,5-dibromoimidazo[1,2-a]pyrazine in 9 ml of a 40% strength aqueous methylamine solution is maintained with stirring for 12 hours. After evaporation under reduced pressure and chromatography on a silica column eluted with ether, 0.33 g (Yld=40%) of 3-bromo-8-methylaminoimidazo[1,2-a]pyrazine (m.p. 139° C.) is obtained.

1. temperatureis maintained
2. customAfter evaporation under reduced pressure and chromatography on a silica column
3. washeluted with ether