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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1045827Generated: October 31, 2026

Hydrochloric Acid → Phenacetin

https://huagongshe.com/reaction/1045827

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 numberUS08569307B2
Source datasetuspto-grants-2013_10
ORD IDord-011b25d47a5f490ab94b6595c4d67a2c
Source noteuspto-grants-2013_10