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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1438545Generated: October 31, 2026

Benzenesulfonyl chloride, 3,4-dichloro- → 3,4-Dichloro-N-[5-chloro-2-(2,4-dimethyl-pyridine-3-carbonyl)-pyridin-3-yl]-benzenesulfonamide

https://huagongshe.com/reaction/1438545

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzenesulfonyl chloride, 3,4-dichloro-HCID 7383—
Reactant2-DimethylaminopyridineHCID 21885—
Reactant(3-Amino-5-chloro-pyridin-2-yl)-(2,4-dimethyl-pyridin-3-yl)-methanoneHCID 57942338—
SolventPyridineHCID 1049—
Product3,4-Dichloro-N-[5-chloro-2-(2,4-dimethyl-pyridine-3-carbonyl)-pyridin-3-yl]-benzenesulfonamideHCID 5794260323.9%

Reaction Conditions

Temperature80 °C

Reaction Steps

To a solution of (3-Amino-5-chloro-pyridin-2-yl)-(2,4-dimethyl-pyridin-3-yl)-methanone (43 mg, 0.16 mmol) and 10 mg of dimethylaminopyridine in 1.0 ml of pyridine was added 3,4-dichlorobenzenesulfonylchloride (70 mg, 0.28 mmol). The mixture was stirred at 80° C. for 3 hours, cooled to room temperature and concentrated. The residue was directly purified by flash column (50% ethyl acetate in hexane) or preparative HPLC (20-80% acetonitrile in water) to afford 18 mg of title compound as an off-white solid. MS: (M+H)/z =470.4.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07622583B2
Source datasetuspto-grants-2009_11
ORD IDord-967acbcc40034504bbe5764699a5d7f8
Source noteuspto-grants-2009_11