Bromine → HCID 13631740, compound

Participants

Reaction Steps

To a solution of 4.3 g of 6-hydroxy-1-teralone in 0 ml of acetic acid and 6 ml of water with stirring under ice cooling is added dropwise a solution of 5.1 g of bromine in acetic acid for 8 minutes. After addition, the mixture is stirred unde ice cooling for 5 minutes and at room temperature for 30 minutes. To the reaction mixture is added 170 ml of ice-cold water. The insoluble substance is collected by filtration, dried and recrystallized from a mixture of hexane, ethyl acetate and ethanol to give 4.8 g of 5-bromo-6-hydroxy-3,4-dihydro-1(2H)-naphthalenone, melting at 183°-186° C.

Provenance & Evidence