反应详情

126.5 Grams of 2-hydroxy-6-bromo-1-naphthylacetic acid, 700 ml of methanol and 2 ml of concentrated sulfuric acid were stirred at room temperature for 24 hours. Then, the reaction mixture was concentrated under reduced pressure. The precipitate was collected by filtration and washed with small amounts of methanol and water to obtain 125.5 g of the desired product.

1. concentrationThen, the reaction mixture was concentrated under reduced pressure
2. filtrationThe precipitate was collected by filtration
3. washwashed with small amounts of methanol and water