F[C:2]1[CH:7]=[CH:6][C:5]([N+:8]([O-:10])=[O:9])=[CH:4][CH:3]=1.[CH3:11][N:12]1[CH2:17][CH2:16][N:15]([CH2:18][CH2:19][CH2:20][NH2:21])[CH2:14][CH2:13]1.C(NC(C)C)(C)C>O1CCOCC1>[CH3:11][N:12]1[CH2:17][CH2:16][N:15]([CH2:18][CH2:19][CH2:20][NH:21][C:2]2[CH:7]=[CH:6][C:5]([N+:8]([O-:10])=[O:9])=[CH:4][CH:3]=2)[CH2:14][CH2:13]1A mixture of 4.44 mL of p-fluoronitrobenzene, 6 gms. 3-(4-methyl-piperazin-1-yl)-propylamine and 6.65 mL N,N-diisopropylamine in 19 mL dioxane is heated at 105° C. for 2 days. The reaction mixture is cooled to room temperature, evaporated to dryness, and recrystallized from hot isopropanol yielding [3-(4-methyl-piperazin-1-yl)-propyl]-(4-nitro-phenyl)-amine in the amount of 0.1385 gms.
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