Acetamide, N-[4-[(4-methyl-1-piperazinyl)sulfonyl]phenyl]- → 4-(4-Methylpiperazine-1-sulfonyl)aniline

Participants

Reaction Steps

N-[4-(4-methylpiperazine-1-sulfonyl)phenyl]acetamide (2 g, 6.7 mmol) was dissolved in 3 N HCl (50 mL) and 1,4-dioxane (12 mL). The reaction mixture was refluxed for 1 h, evaporated under vacuum, and the resulting mixture made basic with 30% NH4OH. The desired product was extracted with CH2Cl2, dried (Na2SO4), filtered, and evaporated under reduced pressure to obtain 4-(4-methylpiperazin-1-sulfonyl)aniline as a white solid. MP: 210° C.; Yield 53%; 1H NMR (DMSO d6): δ 2.22 (s, 3H), 2.50 (m, 4H), 2.82 (m, 4H), 6.10 (bs, 2H), 6.62-6.67 (d, 2H, J=10 Hz), 7.32-7.36 (d, 2H, J=8 Hz).

Provenance & Evidence