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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 443811Generated: October 25, 2026

Sodium ethoxide → 3-Ethoxymethylisoquinoline

https://huagongshe.com/reaction/443811

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium ethoxideHCID 2723922—
Reactant3-(Chloromethyl)isoquinoline hydrochlorideHCID 12874871—
SolventEthanolHCID 702—
Product3-EthoxymethylisoquinolineHCID 1287484388.6%

Reaction Conditions

Temperature20 °C

Reaction Steps

A mixture of 3-chloromethylisoquinoline hydrochloride (40 g) and sodium ethoxide (40 g) in ethanol (700 cc) is heated under reflux for 8 hours. After cooling to 20° C., the mixture is filtered and the filtrate is evaporated to dryness at 50° C. under reduced pressure (20 mm Hg). The residue is taken up in methylene chloride (500 cc), the mixture is washed with water (3×100 cc), the organic phase is dried over magnesium sulphate and filtered and the filtrate is evaporated to dryness at 40° C. under reduced pressure (20 mm Hg). The oily residue is distilled at 110°-114° C. under a pressure of 0.6 mm Hg. 3-Ethoxymethylisoquinoline (31 g), a colourless oil, is obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04261993
Source datasetuspto-grants-1981_04
ORD IDord-e1a391845c2d43eeb4c5a2a412c44c74
Source noteuspto-grants-1981_04