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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 367289Generated: October 28, 2026

Acetic Acid → HCID 13060519, compound

https://huagongshe.com/reaction/367289

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantHydrogen PeroxideHCID 784—
ReactantSulfuric AcidHCID 1118—
Reactant4-Ethyl-1H-indole-2,3-dioneHCID 13827082—
ProductHCID 13060519HCID 1306051948%

Reaction Conditions

Temperature30 °C

Reaction Steps

4-Ethyl isatin (3.1 g, 0.018 mol) was added to a mixture of conc. sulphuric acid (45 μl) in acetic acid (14 ml). The suspension was warmed to 30° C., hydrogen peroxide 35% (2.2 ml) was added and after the addition the temperature was raised to 65° C. After being heated for 3 hours, the mixture was cooled and the precipitate filtered off, washed with water and dried to give the title compound (1.7 g), yield 48%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06133285
Source datasetuspto-grants-2000_10
ORD IDord-714251ae7c134dd0bfe396eabf0584a2
Source noteuspto-grants-2000_10