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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1584063Generated: October 30, 2026

Hydrochloric Acid → 2,3-Dichloro-5-(trichloromethyl)pyridine

https://huagongshe.com/reaction/1584063

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantCarbon TetrachlorideHCID 5943—
ReactantChlorineHCID 24526—
Reactant2-Bromo-3-chloro-5-methylpyridineHCID 12630984—
Product2,3-Dichloro-5-(trichloromethyl)pyridineHCID 94647—

Reaction Steps

The product from paragraph (i) (2.9 g) in dry carbon tetrachloride (250 ml) was treated with dry hydrogen chloride to convert it to the hydrochloride. Chlorine was passed through the suspension which was kept at 80° C. and illuminated by an ultra-violet lamp inside the reaction flask. After three hours the solvent was removed, leaving a residue of 2,3-dichloro-5-trichloromethylpyridine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04555575
Source datasetuspto-grants-1985_11
ORD IDord-bce4067559dd4426b252f4cc13563303
Source noteuspto-grants-1985_11