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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1361853Generated: October 30, 2026

Thionyl Chloride → 2-Chloropyridine-4-carbonyl chloride

https://huagongshe.com/reaction/1361853

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant2-Chloroisonicotinic acidHCID 236985—
Product2-Chloropyridine-4-carbonyl chlorideHCID 2800003—

Reaction Steps

2-Chloroisonicotinic acid (707 mg, 4.49 mmol) was suspended in thionyl chloride (10 mL), followed by stirring under heating and reflux for 7 hours. The reaction mixture was concentrated under reduced pressure to afford 2-chloroisonicotinoyl chloride.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07880013B2
Source datasetuspto-grants-2011_02
ORD IDord-691133f9543c438bae459ad49fd98588
Source noteuspto-grants-2011_02