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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 908171Generated: November 1, 2026

N-Pyrazinylthiourea → 2-Chloro-5-[4-methyl-2-(pyrazin-2-ylamino)-thiazol-5-yl]-benzenesulfonamide

https://huagongshe.com/reaction/908171

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-PyrazinylthioureaHCID 2771013—
Reactant5-(1-Bromo-2-oxo-propyl)-2-chloro-benzenesulfonamideHCID 86606217—
Solvent1,4-DioxaneHCID 31275—
Product2-Chloro-5-[4-methyl-2-(pyrazin-2-ylamino)-thiazol-5-yl]-benzenesulfonamideHCID 86606216—

Reaction Conditions

Temperature70 °C

Reaction Steps

Pyrazin-2-yl-thiourea (1a) (0.07 g, 0.57 mmol) is added to a stirred solution of 5-(1-Bromo-2-oxo-propyl)-2-chloro-benzenesulfonamide (33b) (0.15 g, 0.46 mmol) in 1,4-dioxan (10 ml) at room temperature. The reaction mixture is heated to 70° C. for 2 h. The resulting precipitate is removed by filtration and dried under vacuum to give the titled compound

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08017608B2
Source datasetuspto-grants-2011_09
ORD IDord-c86a0c54f45e4b3d9330d53811c4a59e
Source noteuspto-grants-2011_09