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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1156101Generated: November 2, 2026

Hydrochloric Acid → 3-Fluoro-4-(hexadecylamino)benzoic acid

https://huagongshe.com/reaction/1156101

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthanolHCID 702—
ReactantPotassium HydroxideHCID 14797—
ReactantEthyl 3-fluoro-4-(hexadecylamino)benzoateHCID 20536470—
SolventWaterHCID 962—
Product3-Fluoro-4-(hexadecylamino)benzoic acidHCID 20536410—

Reaction Steps

A solution of 3.8 g of potassium hydroxide in 15 ml of water is added to a mixture of 3.5 g of ethyl 3-fluoro-4-hexadecylaminobenzoate, 30 ml of water and 30 ml of ethanol. Upon heating, a clear solution is formed and after 20 hours, the hot solution is acidified with concentrated hydrochloric acid and cooled. The precipitate is collected and recrystallized from ethanol and then from chloroform to yield 3-fluoro-4-(hexadecylamino)benzoic acid as a colorless solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04333940
Source datasetuspto-grants-1982_06
ORD IDord-8a72b49723cd4fbfb106c2202db60105
Source noteuspto-grants-1982_06