反应详情

2.6 g of 10% by weight of palladium on charcoal is added to a solution of 11.2 g of the product obtained in Stage A in 150 ml of ethyl acetate. The suspension obtained is agitated under 1.3 atmospheres of hydrogen. After the absorption of hydrogen has stopped, the reaction medium is returned to normal atmospheric pressure, followed by filtration and evaporation under reduced pressure in order to obtain 9.64 g of sought product melting at 56° C.

1. customThe suspension obtained
2. customAfter the absorption of hydrogen
3. filtrationfollowed by filtration and evaporation under reduced pressure in order