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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 728956Generated: October 27, 2026

Chlorosulfonic acid → 4-(1H-Imidazol-1-yl)benzenesulfonyl chloride

https://huagongshe.com/reaction/728956

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChlorosulfonic acidHCID 24638—
Reactant1-PhenylimidazoleHCID 81595—
Product4-(1H-Imidazol-1-yl)benzenesulfonyl chlorideHCID 14998830—

Reaction Steps

To chlorosulfonic acid cooled to 0° C. in an ice bath is added portionwise 1-phenyl-1H-imidazole. Monitor the progress of the reaction bythin-layer chromatography. When the reaction is complete, quench the mixture on ice. Saturated aqueous NaHCO3 is added until the solution is no longer acidic. Extract the mixture with CH2Cl2. Dry the organic layer over anhydrous Na2SO4 and remove the solvent in vacuo to obtain the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05051422
Source datasetuspto-grants-1991_09
ORD IDord-6cc879f52e8e41ef9074507710849770
Source noteuspto-grants-1991_09