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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 249491Generated: October 26, 2026

Thionyl Chloride → 2-Chloro-3-chloromethyl-pyridine

https://huagongshe.com/reaction/249491

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant2-Chloronicotinic acidHCID 76258—
Solvent1,2-DichloroethaneHCID 11—
Product2-Chloro-3-chloromethyl-pyridineHCID 11528399—

Reaction Steps

To 10.24 g (0.065 mole) of 2-chloronicotinic acid were added 20 ml of 1,2-dichloroethane and 9.5 ml of thionyl chloride and the mixture was refluxed for 1 hour. The reaction mixture was concentrated to give 11.9 g of 2-chloronicotinyl chloride as an orange-colored oil. When left standing at room temperature, this product solidified thoroughly.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05214152
Source datasetuspto-grants-1993_05
ORD IDord-474504c28abe4a759977d2ac2ba12c3e
Source noteuspto-grants-1993_05