[C:1]([C:4]1[CH:25]=[CH:24][C:7]([O:8][CH2:9][CH2:10][CH2:11][O:12][C:13]2[CH:14]=[C:15]([N+:21]([O-])=O)[C:16]([Cl:20])=[CH:17][C:18]=2[CH3:19])=[C:6]([CH2:26][CH2:27][CH3:28])[C:5]=1[OH:29])(=[O:3])[CH3:2]>[Ni].O1CCCC1>[C:1]([C:4]1[CH:25]=[CH:24][C:7]([O:8][CH2:9][CH2:10][CH2:11][O:12][C:13]2[CH:14]=[C:15]([C:16]([Cl:20])=[CH:17][C:18]=2[CH3:19])[NH2:21])=[C:6]([CH2:26][CH2:27][CH3:28])[C:5]=1[OH:29])(=[O:3])[CH3:2]4.0 g of Raney nickel are added to a solution of 19 g (45 mmol) of 3-[3-(4-acetyl-3-hydroxy-2-n-propylphenoxy)-propoxy]-4-methyl-6-chloronitrobenzene in 200 ml of tetrahydrofuran and the whole is hydrogenated at room temperature. The catalyst is filtered off and washed with tetrahydrofuran. The filtrate is concentrated to dryness by evaporation under reduced pressure and the residue is recrystallised from ether/hexane. 3-[3-(4-acetyl-3-hydroxy-2-n-propylphenoxy)-propoxy]-4-methyl-6-chloroaniline having a melting point of 81° C. is obtained.
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