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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2058564Generated: November 2, 2026

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

https://huagongshe.com/reaction/2058564

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 numberUS04317913
Source datasetuspto-grants-1982_03
ORD IDord-cffda5959c5343a29de7ea15713a5d67
Source noteuspto-grants-1982_03