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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1485520Generated: November 1, 2026

Hydrochloric Acid → HCID 58357226, compound

https://huagongshe.com/reaction/1485520

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantBenzenesulfonyl chlorideHCID 7369—
Reactant3-Amino-5-bromo-2-chloropyridineHCID 21858354—
SolventPyridineHCID 1049—
ProductHCID 58357226HCID 5835722651.6%

Reaction Steps

To a solution of 5-bromo-2-chloropyridin-3-amine (1.00 g, 4.82 mmol) in pyridine (2.41 ml) was dropwise added benzenesulfonyl chloride (0.851 g, 4.82 mmol) at 0° C. The mixture was stirred for 40 min at room temperature and acidified with 1 N HCl. The residue was extracted with EtOAc and the combined organic layers were washed with brine, dried over anhydrous Na2SO4, filtered and concentrated in vacuo to give N-(5-bromo-2-chloropyridin-3-yl)-N-(phenylsulfonyl)benzenesulfonamide (0.606 g, 26% yield) as a white solid. 1H-NMR (CDCl3, Varian 400 MHz) δ 7.02 (1H, s), 7.47-7.56 (2H, m), 7.59-7.66 (1H, m), 7.78-7.86 (2H, m), 8.16 (2H, dd, J=2.4, 7.2 Hz).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09422298B2
Source datasetuspto-grants-2016_08
ORD IDord-a38d2e01823443b698bb65ed2fbc17fc
Source noteuspto-grants-2016_08