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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2372809Generated: October 30, 2026

Thionyl Chloride → 4-Methoxythiophene-2-carbonyl chloride

https://huagongshe.com/reaction/2372809

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant4-Methoxythiophene-2-carboxylic acidHCID 12646619—
Product4-Methoxythiophene-2-carbonyl chlorideHCID 14721837—

Reaction Steps

24.0 g (152 mmol) 4-methoxy-2-thiophenecarboxylic acid were suspended in 250 ml thionyl chloride and heated for two hours under reflux. The excess thionyl chloride was then distilled off under vacuum. The crude product was quickly distilled off and crystallised out in the receiver.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05100911
Source datasetuspto-grants-1992_03
ORD IDord-0fb81332dea545dab94f6c6b4b2eedaf
Source noteuspto-grants-1992_03