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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 15540Generated: October 25, 2026

Pyridine → 4-fluoro-N-{4-fluoro-3-nitrophenyl}benzenesulfonamide

https://huagongshe.com/reaction/15540

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
Reactant4-Fluorobenzenesulfonyl chlorideHCID 9588—
Reactant4-Fluoro-3-nitroanilineHCID 67768—
SolventDichloromethaneHCID 6344—
Product4-fluoro-N-{4-fluoro-3-nitrophenyl}benzenesulfonamideHCID 79892880.7%

Reaction Steps

Pyridine (500 μL, 6.19 mmol) was added to a solution of 4-fluoro-3-nitro-phenylamine (1 g, 6.41 mmol) and 4-fluoro-benzenesulfonyl chloride (1.2 g, 6.19 mmol) in DCM (20 mL) and the reaction was stirred at room temperature overnight. The reaction was then partitioned between water and DCM. The organic layer was washed several times with water and concentrated. Recrystalization from ethanol/water gave 1.57 g of the sub-title compound as tan crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07732618B2
Source datasetuspto-grants-2010_06
ORD IDord-aa3756eb13b24f6fa6a98ce382f27114
Source noteuspto-grants-2010_06