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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1045036Generated: October 31, 2026

Dimethylformamide → HCID 67043412, compound

https://huagongshe.com/reaction/1045036

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantThionyl ChlorideHCID 24386—
Reactant1197362-78-9HCID 67043323—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 67043412HCID 67043412—

Reaction Steps

3.02 g of 7-fluoro-1,2-benzisothiazol-3(2H)-one 1,1-dioxide (EP291851 A2 19881123), 1.64 ml of thionyl chloride and a catalytic amount of DMF in 13 ml of dioxane are heated under reflux for 45 hours. The mixture is concentrated and the residue is crystallized in toluene. 2.50 g of a crude solid is obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08563744B2
Source datasetuspto-grants-2013_10
ORD IDord-869dec3189574e918d0be4123a0eb1d1
Source noteuspto-grants-2013_10