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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1071725Generated: October 26, 2026

Hydrochloric Acid → n-[(5-Chloro(2-thienyl))sulfonyl](4-nitrophenyl)carboxamide

https://huagongshe.com/reaction/1071725

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-Nitrobenzoyl chlorideHCID 8502—
ReactantSodium HydroxideHCID 14798—
Reactant5-Chlorothiophene-2-SulfonamideHCID 1241301—
SolventAcetoneHCID 180—
Productn-[(5-Chloro(2-thienyl))sulfonyl](4-nitrophenyl)carboxamideHCID 2206447281%

Reaction Steps

A 85 mg portion (0.43 mmol) of 5-chlorothiophenesulfonamide dissolved in 2 mL of acetone was treated with 110 μL of 4N NaOH (0.43 mmol) followed by addition of 80 mg (0.43 mmol) of 4-nitrobenzoyl chloride. After stirring for 12 h, the solution was acidfied 1N HCl and the precipitate was collected by filtration and dried. Recrystallization from EtOAc/hexane afforded 120 mg (81%) of the titled compound. ES-MS (M+H)+=347 (Cl).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06906063B2
Source datasetuspto-grants-2005_06
ORD IDord-264ea1c8a94e436999e2497837687077
Source noteuspto-grants-2005_06