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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1935302Generated: October 31, 2026

Isonicotinic Acid → Pyridine-4-carbonyl chloride

https://huagongshe.com/reaction/1935302

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIsonicotinic AcidHCID 5922—
ReactantThionyl ChlorideHCID 24386—
ProductPyridine-4-carbonyl chlorideHCID 417436—

Reaction Conditions

Temperature70 °C

Reaction Steps

Isonicotinic acid (1.27 g, 10.36 mMole) was added to thionyl chloride (30 mL) and the mixture heated to 70° C. After 1 hour the solution was cooled, concentrated under reduced pressure and co-evaporated with ethyl acetate (2×30 mL). The residue was used as such in the following step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06387606B1
Source datasetuspto-grants-2002_05
ORD IDord-049e880a411b4f1db1d7170734fcff32
Source noteuspto-grants-2002_05