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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 840036Generated: October 30, 2026

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

https://huagongshe.com/reaction/840036

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 5 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 numberUS04097674
Source datasetuspto-grants-1978_06
ORD IDord-e5e333caecbb43f6a490e2d0ca6fd45b
Source noteuspto-grants-1978_06