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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1577847Generated: November 3, 2026

Thionyl Chloride → 4-(Pyrid-4-yl)butyroyl chloride hydrochloride

https://huagongshe.com/reaction/1577847

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant4-Pyridin-4-YL-butyric acid hydrochlorideHCID 46735945—
SolventDimethylformamideHCID 6228—
Solvent1,1-DichloroethaneHCID 6365—
Product4-(Pyrid-4-yl)butyroyl chloride hydrochlorideHCID 20569940—

Reaction Steps

4-(Pyrid-4-yl)butyric acid hydrochloride (ca. 35 g) in dichloroethane (250 ml) and dimethylformamide (0.5 ml) was treated with thionyl chloride (100 ml). The vigorous exothermic reaction was allowed to subside and then the mixture was heated under reflux for 10 minutes, followed by evaporation to dryness in vacuo to give crude 4-(pyrid-4-yl)butyroyl chloride hydrochloride.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04289772
Source datasetuspto-grants-1981_09
ORD IDord-a207383eb217417cae2155479e9acfab
Source noteuspto-grants-1981_09