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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 840823Generated: October 31, 2026

4-Hydrazinylbenzenesulfonamide hydrochloride → HCID 178438851, compound

https://huagongshe.com/reaction/840823

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Hydrazinylbenzenesulfonamide hydrochlorideHCID 2794567—
ReactantHCID 12898277HCID 12898277—
ProductHCID 178438851HCID 17843885173%

Reaction Steps

The title compound was prepared from 4-isopropyl-1H-indole-2,3-dione (Krantz and Young, 1989, U.S. Pat. No. 4,873,232) and 4-sulfonamidophenylhydrazine hydrochloride according to Procedure G in 73% yield: 1H NMR (DMSO-d6): δ1.30 (d, J=6.7 Hz, 6H), 3.82 (septet, J=6.7 Hz, 1H), 6.76 (d, J=7.8 Hz, 1H), 7.01 (d, J=7.8 Hz, 1H), 7.23 (t, J=7.8 Hz, 1H), 7.24 (s, 2H), 7.48 (d, J=8.7 Hz, 2H), 7.79 (d, J=8.7 Hz, 2H), 11.10 (s, 1H), 13.05 (s, 1H); APCI−MS m/z 357 (M−1)−. Anal. Calcd for C17H18N4O3S: C, 56.97, H, 5.06; N, 15.63; S, 8.95. Found C, 56.88, H, 5.12; N, 15.73; S. 8.91.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06369086B1
Source datasetuspto-grants-2002_04
ORD IDord-d8e146cf6a474838846e911d05996a1e
Source noteuspto-grants-2002_04