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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2255973Generated: November 1, 2026

Thionyl Chloride → 5-(2-Pyridinyl)-2-thiophenecarbonyl chloride

https://huagongshe.com/reaction/2255973

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant5-(Pyridin-2-yl)thiophene-2-carboxylic acidHCID 736482—
Product5-(2-Pyridinyl)-2-thiophenecarbonyl chlorideHCID 2776199—

Reaction Steps

A mixture of 1.0 g of 5-(2-pyridinyl)thiophene-2-carboxylic acid and 5 ml of thionyl chloride is refluxed for 2.5 hours. The mixture is concentrated to dryness under vacuum. Toluene is added (2 times) and the solvent removed under vacuum to give the product as an off-white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05654297
Source datasetuspto-grants-1997_08
ORD IDord-feac57a62c6a4aa3a8dac379c474acb1
Source noteuspto-grants-1997_08