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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 972861Generated: October 30, 2026

Thionyl Chloride → 2-Formyl-5-chloromethylpyridine hydrochloride

https://huagongshe.com/reaction/972861

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant5-(Hydroxymethyl)pyridine-2-carboxaldehydeHCID 13518562—
SolventTetrahydrofuranHCID 8028—
Product2-Formyl-5-chloromethylpyridine hydrochlorideHCID 20263964—

Reaction Steps

2-Formyl-5-hydroxymethylpyridine (0.1 mole) in 100 ml. of tetrahydrofuran is treated with 0.11 mole of thionyl chloride, and the mixture is refluxed 3 hours. The product, 2-formyl-5-chloromethylpyridine hydrochloride, is collected by filtration from the cooled reaction mixture.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04053606
Source datasetuspto-grants-1977_10
ORD IDord-eb3c7237368f4f7abf6e8b93779928d5
Source noteuspto-grants-1977_10