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
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Benzenesulfonyl chloride, 3,4-dichloro- | HCID 7383 | — |
| Reactant | 2-Dimethylaminopyridine | HCID 21885 | — |
| Reactant | (3-Amino-5-chloro-pyridin-2-yl)-(2,4-dimethyl-pyridin-3-yl)-methanone | HCID 57942338 | — |
| Solvent | Pyridine | HCID 1049 | — |
| Product | 3,4-Dichloro-N-[5-chloro-2-(2,4-dimethyl-pyridine-3-carbonyl)-pyridin-3-yl]-benzenesulfonamide | HCID 57942603 | 23.9% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07622583B2 |
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| Source dataset | uspto-grants-2009_11 |
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| ORD ID | ord-967acbcc40034504bbe5764699a5d7f8 |
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| Source note | uspto-grants-2009_11 |
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