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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1973991Generated: October 31, 2026

Hydrochloric Acid → 2-(6-Methoxy-2-naphthyl)propionic acid

https://huagongshe.com/reaction/1973991

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
Reactant(RS)-Naproxen methyl esterHCID 529084—
SolventMethanolHCID 887—
Product2-(6-Methoxy-2-naphthyl)propionic acidHCID 1302—

Reaction Conditions

Temperature60 °C

Reaction Steps

To a mixture of 20 g. of sodium hydroxide and 400 ml. of methanol are added 24.5 g. of methyl 6-methoxy-2-naphthyl-α-methylacetate. The resulting reaction mixture is heated to 60° C for five hours. The cooled mixture is neutralized by the addition of aqueous 1N hydrochloric acid and extracted with methylene chloride. The extracts are combined, washed with water to neutrality, dried over sodium sulfate, filtered, and evaporated to give 6-methoxy-2-naphthyl-α-methylacetic acid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03998966
Source datasetuspto-grants-1976_12
ORD IDord-49236a36ac9f42a4b7671a7743e0aaa4
Source noteuspto-grants-1976_12