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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1294766Generated: October 30, 2026

Thionyl Chloride → 2-Chloro-5-(ethylsulfonyl)benzoxazole

https://huagongshe.com/reaction/1294766

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
ReactantHCID 178477630HCID 178477630—
CatalystDimethylformamideHCID 6228—
Product2-Chloro-5-(ethylsulfonyl)benzoxazoleHCID 58906316—

Reaction Steps

8 mmol of 5-Ethanesulfonyl-benzooxazole-2-thiol were dissolved in 10 ml of thionyl chloride. 1 drop of N,N-dimethylformamide is added and the reaction mixture hold at 65° for 45 min. Evaporation of the solvent yields the title compound as brownish solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07241761B2
Source datasetuspto-grants-2007_07
ORD IDord-52832cbc13cb4d58b0a6edb53bf83f42
Source noteuspto-grants-2007_07