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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1650911Generated: November 3, 2026

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

https://huagongshe.com/reaction/1650911

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 (25 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 numberUS04925947
Source datasetuspto-grants-1990_05
ORD IDord-42e1c326480e49cbac9d9f649d374f89
Source noteuspto-grants-1990_05