[N+:1]([C:4]1[CH:9]=[CH:8][C:7]([CH:10]([N:12]2[CH:16]=[CH:15][N:14]=[CH:13]2)[CH3:11])=[CH:6][CH:5]=1)([O-])=O.S1C=CC=C1.N.[H][H]>CO.[Pt]>[N:12]1([CH:10]([C:7]2[CH:8]=[CH:9][C:4]([NH2:1])=[CH:5][CH:6]=2)[CH3:11])[CH:16]=[CH:15][N:14]=[CH:13]1
(a-3) A mixture of 34.4 parts of 1-[1-(4-nitrophenyl)ethyl]-1H-imidazole, 2 parts of a solution of thiophene in methanol 4%, 200 parts of methanol and 200 parts of methanol saturated with ammonia was hydrogenated at normal pressure and at room temperature with 4 parts of platinum-on-charcoal catalyst 5%. After the calculated amount of hydrogen was taken up, the catalyst was filtered off and the filtrate was evaporated. The oily residue was crystallized from a mixture of 2-propanol and 2,2'-oxybispropane (2:1 by volume). The product was filtered off and dried, yielding 27 parts (91.3%) of 4-[1-(1H-imidazol-1-yl)ethyl]benzenamine; mp. 130° C. (int. 114).
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