Water → HCID 53402978, compound

Participants

Reaction Steps

Hydrazine monohydrate (50 ml) was stirred at 100° C., a solution of 5-bromo-2,3-dichloropyridine (15.0 g) in ethanol (25 ml) was added therein dropwise over an hour and the mixture was stirred at the same temperature. After completion of the reaction, the reaction solution was cooled to room temperature, water (150 ml) was added and stirred at the room temperature. The precipitated solid was collected by filtration to give (5-bromo-3-chloropyridin-2-yl)hydrazine (14.78 g) as a white solid.

Provenance & Evidence