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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1874337Generated: October 30, 2026

Pyridine → HCID 68724907, compound

https://huagongshe.com/reaction/1874337

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
Reactant4-Toluenesulfonyl chlorideHCID 7397—
ReactantHCID 57749238HCID 57749238—
SolventWaterHCID 962—
ProductHCID 68724907HCID 6872490792%

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of 5-(3-nitrophenoxy)pyridin-2-amine (2.70 g, 11.7 mmol), p-toluenesulfonyl chloride (2.67 g, 14.0 mmol) and pyridine (20 mL) was stirred at 80° C. for 2 hr. The reaction mixture was diluted with water and extracted with ethyl acetate (×3). The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and filtrated. The filtrate was concentrated under reduced pressure. The residue was collected by filtration and washed with ethyl acetate-hexane to give 4-methyl-N-[5-(3-nitrophenoxy)pyridin-2-yl]benzenesulfonamide (4.15 g, 92%) as a white solid. A mixture of 4-methyl-N-[5-(3-nitrophenoxy)pyridin-2-yl]benzenesulfonamide (4.15 g, 10.7 mmol) thus-obtained, N,N-diisopropylethylamine (2.44 mL, 14.0 mmol) and N,N-dimethylformamide (20 mL) was stirred at room temperature for 2 hr, iodoacetamide (2.59 g, 14.0 mmol) was added, and the mixture was stirred at room temperature for 15 hr. The reaction mixture was diluted with water and extracted with ethyl acetate (×3). The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and filtrated. The filtrate was concentrated under reduced pressure, and the residue was collected by filtration and washed with ethyl acetate-hexane to give the title compound (5.28 g, 99%) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08304557B2
Source datasetuspto-grants-2012_11
ORD IDord-13d89d3df9894086819b96d619dd492a
Source noteuspto-grants-2012_11