Phenacyl bromide → 2-Phenylimidazo[1,2-A]pyrimidin-7-amine

Participants

Reaction Steps

Bromoacetophenone (2.71 g, 14 mmol) was added to a solution of 2,4-diaminopyrimidine (1.00 g, 9 mmol) in acetone (40 ml), and the mixture was heated to reflux for 5 h. The cooled suspension was filtered, the precipitate was washed (acetone), and then stirred for 15 min in a mixture of 10 ml water and 15 ml NH4OH (25%). The suspension was filtered, washed (water), and dried under vacuum. The crude product (1.9 g, quant.) was used in the next step without further purification.

Provenance & Evidence