反应详情

To a solution of 8-Chloro-2-methyl-imidazo[1,2-a]pyrazine (0.7 g, 4.18 mmol) in DCM (20 ml) is added N-bromosuccinimide (0.74 g, 4.18 mmol) and the reaction stirred at room temperature for 2 h. After this time the solution is washed with saturated aqueous solution of Na2CO3 (2×20 ml), dried (MgSO4), filtered and concentrated in vacuo to give 3-bromo-8-chloro-2-methyl-imidazo[1,2-a]pyrazine (0.771 g, 75%).

1. washAfter this time the solution is washed with saturated aqueous solution of Na2CO3 (2×20 ml)
2. dry with materialdried (MgSO4)
3. filtrationfiltered
4. concentrationconcentrated in vacuo