反应详情

To a solution of 8-bromo-4-hydroxy-7-methylnaphthalene-2-carboxylic acid (0.45 g) in ethanol (8 mL) was added palladium-carbon (180 mg) in 3 parts, and the mixture was stirred at room temperature for 2 days under a hydrogen atmosphere. The insoluble material was removed by filtering through a Celite pad, and the filtrate was concentrated to give the title compound (0.32 g).

1. customThe insoluble material was removed
2. filtrationby filtering through a Celite pad
3. concentrationthe filtrate was concentrated