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Water → N-[3-Fluoro-4-(phenylsulfonyl)phenyl]-3,3,3-trifluoro-2-hydroxy-2methylpropanamide

HRID 2292942
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2292942
[F:1][C:2]([F:10])([F:9])[C:3]([OH:8])([CH3:7])[C:4](O)=[O:5].S(Cl)(Cl)=O.[F:15][C:16]1[CH:17]=[C:18]([NH2:31])[CH:19]=[CH:20][C:21]=1[S:22]([C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1)(=[O:24])=[O:23].O>CN(C)C(=O)C>[F:15][C:16]1[CH:17]=[C:18]([NH:31][C:4](=[O:5])[C:3]([OH:8])([CH3:7])[C:2]([F:10])([F:9])[F:1])[CH:19]=[CH:20][C:21]=1[S:22]([C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1)(=[O:24])=[O:23]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 4

HCID 962WaterHCID 24386Thionyl ChlorideHCID 27751253,3,3-Trifluoro-2-hydroxy-2-methylpropanoic acidHCID 107532343-Fluoro-4-(phenyl sulfonyl)benzeneamine

Produkt 1

HCID 10834289N-[3-Fluoro-4-(phenylsulfonyl)phenyl]-3,3,3-trifluoro-2-hydroxy-2methylpropanamideAusbeute 68 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 31374DimethylacetamideLösungsmittel

Versuchsvorschrift

To a stirred, cooled (-20° C.) solution of 3,3,3-trifluoro-2-hydroxy-2-methylpropanoic acid (0.71 g, 4.5 mmol) in N,N-dimethylacetamide (10 mL) was added thionyl chloride (0.54 g, 4.5 mmol) and the mixture stirred at -10° to -15° C. for 1 hour. 3-Fluoro-4-(phenylsulfonyl)benzeneamine (0.75 g, 3.0 mmol) was added in one portion and the reaction mixture stirred at room temperature overnight. The mixture was poured into water and the aqueous solution filtered through Celite. The Celite was washed with methylene chloride (75 mL), the organic extract dried (MgSO4) and concentrated in vacuo to a tan solid. Purification by flash column chromatography (5% v/v ethyl acetate/methylene chloride) yielded the title propanamide as a white solid (0.79 g, 68%); mp 147°-149° C. 1H-NMR (250 MHz, d6-DMSO): 1.58 (s, 3H, CH3) 7.65-7.69 (m, 4H, aromatic+OH) 7.74 (d, 1H, J=7.2 Hz, aromatic) 7.83-7.94 (m, 3H, aromatic) 8.02 (t, 1H, J=8.3 Hz, aromatic) 10.61 (s, 1H, NH). MS (CI, CH4): 392 (M+1).

Aufarbeitung

  1. stirringthe reaction mixture stirred at room temperature overnight
  2. filtrationthe aqueous solution filtered through Celite
  3. washThe Celite was washed with methylene chloride (75 mL)
  4. extractionthe organic extract
  5. dry with materialdried (MgSO4)
  6. concentrationconcentrated in vacuo to a tan solid
  7. customPurification by flash column chromatography (5% v/v ethyl acetate/methylene chloride)

Quellen und Nachweise

ORD-Eintrag
ord-49611beed74f4dea833f22c4cbdbc183
Quelldatensatz
uspto-grants-1997_11
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US05684198

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