Bromine → HCID 66904813, compound

Participants

Reaction Steps

To a solution of 2-amino-5-(4-fluorophenyl)pyridine (0.80 g, 4.25 mmol) in 20 ml glacial acetic acid was added sodium acetate (1.39 g, 17.0 mmol). Subsequently, a solution of bromine (0.44 mL, 8.50 mmol) in 2 ml glacial acetic acid was added dropwise to the reaction by addition funnel. After the addition, the reaction was heated to reflux for 1 hour then cooled and diluted with dichloromethane. The solution was washed with 25 ml saturated aqueous sodium hydrogen sulfate and then 25 ml water then dried over magnesium sulfate and concentrated to a brown oil. Automated purification on a silica gel ISCO column (120 g column, 2.5% MeOH—CH2Cl2) gave 1.20 g (60%) of 2-amino-3-bromo-5-(4-fluorophenyl)pyridine as an off-white/pink solid.

Provenance & Evidence