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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1957822Generated: November 4, 2026

Hydrochloric Acid → 2-(4-Aminophenoxy)acetic acid hydrochloride

https://huagongshe.com/reaction/1957822

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthyl 2-(4-acetamidophenoxy)acetateHCID 309738—
Product2-(4-Aminophenoxy)acetic acid hydrochlorideHCID 6681148877.6%

Reaction Conditions

Temperature10 °C

Reaction Steps

A mixture (4-Acetylamino-phenoxy)-acetic acid ethyl ester 13 (375 g, 1.582 mmol), in concentrated hydrochloric acid (9.36 liters) was refluxed for 12 hours. Excess concentrated hydrochloric acid was distilled off in vacuum and filtered hot. The mixture was cooled to 10° C., filtered and dried to give pure 14 (250 g, 77.6%) as a wheat colored powder. The melting point was found to be 224-226° C. The structure was confirmed with NMR.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08409559B2
Source datasetuspto-grants-2013_04
ORD IDord-38f5b847ce1f4af9b1d105bee75bf64b
Source noteuspto-grants-2013_04