[C:1]1([CH2:7][CH2:8][CH2:9][S:10][C:11]2[CH:16]=[CH:15][C:14]([N+:17]([O-])=O)=[CH:13][CH:12]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1>[Ni].CN(C)C=O>[C:1]1([CH2:7][CH2:8][CH2:9][S:10][C:11]2[CH:12]=[CH:13][C:14]([NH2:17])=[CH:15][CH:16]=2)[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=190 g of 4-(3'-phenyl-propylthio)-nitrobenzene is catalytically hydrogenated in 300 ml. of dimethylformamide with Raney nickel. After completion of the hydrogen absorption and removal of the catalyst and the solvent, there is obtained 4-(3'-phenyl-propylthio)-aniline as an oily residue, which can be used without purification in the next reaction stage.
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