反应详情

8.3 g of 4-nitrobenzaldoxime together with 100 ml of tetrahydrofuran are initially introduced into a stirred autoclave. 50 mg of FeCl2.4 H2O and 0.2 g of the catalyst from Example A1 are added to the solution. Hydrogenation is carried out at 120° C. and a hydrogen pressure of 20×105 pascals. When hydrogenation is complete, the mixture is cooled to room temperature, the reactor is rendered inert with nitrogen and the catalyst is filtered off. The solvent is distilled off to give, after chromatographic purification, 3.5 g (51% of theory) of 4-aminobenzaldoxime.

1. customis carried out at 120° C.
2. filtrationthe catalyst is filtered off
3. distillationThe solvent is distilled off
4. customto give
5. customafter chromatographic purification, 3.5 g (51% of theory) of 4-aminobenzaldoxime