反应详情

14 g of 2-Allyl-3-phenyl-7-nitro-1-naphthol prepared in step (4) were dissolved in 200 ml of acetone. 300 ml of ethanol and one pinchful of a 10% palladium on charcoal catalyst were added. The resulting mixture was hydrogenated at room pressure and temperature until the theoretical amount of hydrogen was absorbed. The catalyst was then removed by filtration and the residual solution was evaporated to dryness under reduced pressure. The resulting crystals were washed with petroleum ether, filtered off and dried under sulfuric vacuum.

1. customwas absorbed
2. customThe catalyst was then removed by filtration
3. customthe residual solution was evaporated to dryness under reduced pressure
4. washThe resulting crystals were washed with petroleum ether
5. filtrationfiltered off
6. customdried under sulfuric vacuum