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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 840887Generated: October 31, 2026

Indole-2,3-dione, 5,6-dimethyl- → HCID 178421829, compound

https://huagongshe.com/reaction/840887

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIndole-2,3-dione, 5,6-dimethyl-HCID 52550—
Reactant4-Hydrazinylbenzenesulfonamide hydrochlorideHCID 2794567—
ProductHCID 178421829HCID 17842182932%

Reaction Steps

The title compound was prepared from 5,6-dimethyl-1H-indole-2,3-dione and 4-sulfonamidophenylhydrazine hydrochloride according to Procedure G in 32% yield: 1H NMR (DMSO-d6): δ2.22 (s, 3H), 2.24 (s, 3H), 6.72 (s, 1H), 7.23 (s, 2H), 7.36 (s, 1H), 7.52 (d, J=8.8 Hz, 2H), 7.77 (d, J=8.8 Hz, 2H), 10.93 (s, 1H), 12.71 (s, 1H). APCI−MS m/z343 (M−H)−. Anal. Calcd for C16H16N4O3S: C, 55.80, H, 4.68; N, 16.27; S, 9.31. Found C, 55.78, H, 4.74; N, 16.37; S, 9.22.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06369086B1
Source datasetuspto-grants-2002_04
ORD IDord-71686fb785204ad4bb76a1b0867e675a
Source noteuspto-grants-2002_04