[NH2:1][C:2]1[CH:9]=[CH:8][C:5]([CH:6]=[O:7])=[CH:4][C:3]=1[N+:10]([O-])=O.[H][H]>[Ni].CO>[NH2:10][C:3]1[CH:4]=[C:5]([CH2:6][OH:7])[CH:8]=[CH:9][C:2]=1[NH2:1]A mixture of 8.3 parts of 4-amino-3-nitrobenzaldehyde in 200 parts of methanol is hydrogenated at normal pressure and at room temperature with 5 parts of Raney-nickel catalyst. After a calculated amount of hydrogen is taken up, the catalyst is filtered off and the filtrate is evaporated, yielding 8.5 parts of 3,4-diaminobenzenemethanol as an oily residue.
Wird geladen…