反应详情

Under nitrogen, to a solution of 2,4-dibromo-5-nitropyridine in THF (150 mL), was added ammonia (2.0M in MeOH), followed with triethylamine (5 mL). This mixture was then stirred at rt for 50 h. The reaction mixture was concentrated, taken up in EtOAC, filtered through a silica gel pad, and then concentrated in vacuo to afford the title compound (3.67 g, 95%). MS (ES+) m/e 218 [M+H]+.

1. concentrationThe reaction mixture was concentrated
2. filtrationfiltered through a silica gel pad
3. concentrationconcentrated in vacuo