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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1939203Generated: October 27, 2026

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

https://huagongshe.com/reaction/1939203

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 a glass.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05696112
Source datasetuspto-grants-1997_12
ORD IDord-fb975a4954c24bc19034a6d40549b73a
Source noteuspto-grants-1997_12