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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1896206Generated: November 2, 2026

Thionyl Chloride → 6-Chloropyrazine-2-carbonyl chloride

https://huagongshe.com/reaction/1896206

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant6-Chloropyrazine-2-carboxylic acidHCID 14500875—
SolventAcetonitrileHCID 6342—
Product6-Chloropyrazine-2-carbonyl chlorideHCID 15149671—

Reaction Steps

A mixture of 2-chloro-6-carboxy-pyrazine (1000 mg, 6.3 mmol) in ACN (20 mL) was treated with thionyl chloride (800 uL). The resulting mixture, which became homogeneous upon heating, was refluxed for 2 h. The solvent was removed under reduced pressure which gave an oil. The crude product was used in the next step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08518952B2
Source datasetuspto-grants-2013_08
ORD IDord-7d24d020f37a424d9684cf4640cd7d0e
Source noteuspto-grants-2013_08