反应详情

An ice-cold suspension of 5-bromo-3-bromomethyl-pyridin-2-ylamine hydrobromide (10.0 g, 28.8 mmol) in MeCN (100 mL) was treated with piperidine (6.4 mL, 64.8 mmol). After stirring at room temperature for 3.5 h, the mixture was diluted with Et2O (500 mL). The solution was filtered and then concentrated to give the title compound (4.16 g, 53%) as a pale, yellow solid: MS (ESI) m/e 270 (M+H)+.

1. filtrationThe solution was filtered
2. concentrationconcentrated