反应详情

40.02 g of 5-benzyloxy-2-ethoxybenzonitrile (158 mmol) (example 32A) and 5% Pd/C (4.0 g) are initially charged in 1 l of methanol. The mixture is then hydrogenated under an atmosphere of hydrogen (1 atm) for about 4 h. The mixture is filtered through kieselguhr and evaporated and the crystalline residue is dried under reduced pressure.

1. filtrationThe mixture is filtered through kieselguhr
2. customevaporated
3. customthe crystalline residue is dried under reduced pressure