Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 336441Generated: October 29, 2026

Hydrochloric Acid → Phenacetin

https://huagongshe.com/reaction/336441

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 numberUS08889691B2
Source datasetuspto-grants-2014_11
ORD IDord-be2560d9082849d99bd84a648ceb8c0e
Source noteuspto-grants-2014_11