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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 231676Generated: October 30, 2026

Sulfuric Acid → HCID 88521943, compound

https://huagongshe.com/reaction/231676

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantAcetic AnhydrideHCID 7918—
ReactantPotassium AcetateHCID 517044—
ReactantHCID 20033719HCID 20033719—
SolventEthanolHCID 702—
SolventEthyl AcetateHCID 8857—
ProductHCID 88521943HCID 88521943—

Reaction Steps

Acetic anhydride (7.34 g, 0.072 mol) was added to (4-cyano-2-fluorophenylthio)thiophene (8.46 g, 0.036 mol) in 200 ml ethyl acetate at 0° C. A cooled solution of sulfuric acid (3.88 g, 0.0395 mol) and ethyl acetate (10 ml) was added dropwise and allowed to stir at room temperature overnight. After cooling to 0° C. potassium acetate (4.23 g, 0.043 mol) in a minimum amount of ethanol was added slowly. A white solid (11.70 g) was collected after stirring one hour.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04847289
Source datasetuspto-grants-1989_07
ORD IDord-c7bcb065a32046ad98f62438be6259e6
Source noteuspto-grants-1989_07