Pyridine → 2,4-difluoro-N-(thiazol-2-yl)benzenesulfonamide

HRID 46290

Reaktionsgleichung

Reaktionsgleichung von HRID 46290
[NH2:1][C:2]1[S:3][CH:4]=[CH:5][N:6]=1.N1C=CC=CC=1.[F:13][C:14]1[CH:19]=[C:18]([F:20])[CH:17]=[CH:16][C:15]=1[S:21](Cl)(=[O:23])=[O:22]>C(Cl)Cl>[F:13][C:14]1[CH:19]=[C:18]([F:20])[CH:17]=[CH:16][C:15]=1[S:21]([NH:1][C:2]1[S:3][CH:4]=[CH:5][N:6]=1)(=[O:23])=[O:22]

Komponenten

5

Versuchsvorschrift

To a slurry of 2-aminothiazole (15.08 g, 0.1506 mol) in methylene chloride (100 mL) and pyridine (24 mL, 0.30 mol) was added dropwise over 20 minutes a solution of 2,4-difluorobenzenesulfonyl chloride (10 mL, 0.07 mol) in 10 mL of methylene chloride. After stirring at room temperature for 48 hours the reaction was concentrated and purified by flash column chromatography eluting with hexane/ethyl acetate. LCMS Rt=1.21 minutes MS m/z 277 [MH]+

Aufarbeitung

  1. concentrationwas concentrated
  2. custompurified by flash column chromatography
  3. washeluting with hexane/ethyl acetate

Quellen und Nachweise

ORD-Eintrag
ord-b083043d358544dcbd3734bbd645a5dc
Quelldatensatz
uspto-grants-2013_09
Patentnummer
US08541588B2

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