4-Hydrazinylbenzenesulfonamide hydrochloride → HCID 178514740, compound

Participants

Reaction Steps

4-(1H-Pyrazol-3-yl)-1H-indole-2,3-dione was prepared from 3-(1H-pyrazol-3-yl)aniline according to Procedure A. The title compound was prepared from 4-(1H-pyrazol-3-yl)isatin and 4-sulfonamidophenylhydrazine hydrochloride according to Procedure G: 1H NMR (DMSO-d6): δ 6.72 (s, 1H), 7.22 (s, 2H), 7.39 (s, 1H), 7.48–7.60 (m, 4H), 7.76 (d, J=8.7 Hz, 2H), 7.77 (s, 1H), 11.11 (s, 1H), 12.93 (s, 1H); ESI-MS: m/z 381 (M−H)−.

Provenance & Evidence