反应详情

2-Fluoro-4-iodo-3-pyridinecarbaldehyde (from Asymchem) (0.97 g) was added portionwise over 5 min to hydrazine hydrate (5 ml). The resulting suspension was stirred at room temperature for 5 h. Water (10 ml) was added and the solid was filtered and washed with further water to give title compound, 664 mg.

1. filtrationthe solid was filtered
2. washwashed with further water