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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 353328Generated: October 29, 2026

Dimethylformamide → 4-(Pyridin-4-yloxy)benzene-1-sulfonyl chloride hydrochloride

https://huagongshe.com/reaction/353328

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantThionyl ChlorideHCID 24386—
Reactant4-(4-Pyridinyloxy)benzenesulfonic acidHCID 2760497—
SolventAcetonitrileHCID 6342—
Product4-(Pyridin-4-yloxy)benzene-1-sulfonyl chloride hydrochlorideHCID 2735257100%

Reaction Steps

Part C: A slurry of the sulfonic acid part B (420 g, 1.5 mol) in acetonitrile (2500 mL) and DMF (40 mL) was warmed to 75° C. under a nitrogen atmosphere and treated with thionyl chloride (243 mL, 3.3 mol) added dropwise over 3 hours. After stirring for one-half hour, the standard work-up procedure afforded 483 grams (100%) of the desired 4-[(pyrid-4-yl)oxy]benzenesulfonyl chloride hydrochloride.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06750228B1
Source datasetuspto-grants-2004_06
ORD IDord-0f1f81267f4547be9dac4edfd506adcd
Source noteuspto-grants-2004_06