Bromine → HCID 13913247, compound

Participants

Reaction Steps

To a solution of 22 g of 3'-aminomethyl-4'-hydroxypropiophenone hydrochloride in 300 ml of ice-cold water is added dropwise 17 g of bromine with stirring under ice cooling for about 10 minutes. After addition, the reaction mixture is stirred under ice cooling for 3 minutes and then at room temperature for 5 minutes. To the resulting mixture is added 200 ml of water and insoluble substances are filtered off. The filtrate is neutralized with powdery sodium hydrogencarbonate and the liquid layer is adjusted pH to about 7 to precipitate fine powder. The powder is collected by filtration and dried to give 25 g of 3'-aminomethyl-5'-bromo -4'-hydroxypropiophenone, melting at 186°-187° C. with decomposition.

Provenance & Evidence