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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1515232Generated: November 2, 2026

Hydrochloric Acid → Phenacetin

https://huagongshe.com/reaction/1515232

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantAcetic AnhydrideHCID 7918—
ReactantTriethylamineHCID 8471—
Reactant4-EthoxyanilineHCID 9076—
SolventDichloromethaneHCID 6344—
ProductPhenacetinHCID 4754—

Reaction Steps

4-Ethoxyaniline (40 g, 0.29 mol) and triethylamine (61 mL, 0.44 mol) were dissolved in dichloromethane (200 mL). Acetic anhydride (30 mL, 0.32 mol) was added in drops thereto, and the mixture was stirred for 1 h at 0° C. to room temperature. 1N hydrochloric acid solution was added, and the reaction mixture was extracted with ethyl acetate, washed with sodium chloride solution, and dried over anhydrous magnesium sulfate to give the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08222414B2
Source datasetuspto-grants-2012_07
ORD IDord-4a9f1ef4abf342bab7a0c926d42ae8bf
Source noteuspto-grants-2012_07