Sodium Hydroxide → 4-(tert-butyl)-N-[1-methyl-4-(4-methylphenyl)-3-(2-phenoxyethoxy)-1H-pyrazol-5-yl]benzenesulfonamide

HRID 1368573Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1368573
[C:1]([C:5]1[CH:10]=[CH:9][C:8]([S:11]([N:14](S(C2C=CC(C(C)(C)C)=CC=2)(=O)=O)[C:15]2[N:19]([CH3:20])[N:18]=[C:17]([O:21][CH2:22][CH2:23][O:24][C:25]3[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=3)[C:16]=2[C:31]2[CH:36]=[CH:35][C:34]([CH3:37])=[CH:33][CH:32]=2)(=[O:13])=[O:12])=[CH:7][CH:6]=1)([CH3:4])([CH3:3])[CH3:2].[OH-].[Na+]>C(O)C.O>[C:1]([C:5]1[CH:6]=[CH:7][C:8]([S:11]([NH:14][C:15]2[N:19]([CH3:20])[N:18]=[C:17]([O:21][CH2:22][CH2:23][O:24][C:25]3[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=3)[C:16]=2[C:31]2[CH:36]=[CH:35][C:34]([CH3:37])=[CH:33][CH:32]=2)(=[O:13])=[O:12])=[CH:9][CH:10]=1)([CH3:4])([CH3:3])[CH3:2]

Komponenten

5

Versuchsvorschrift

To 4-(tert-butyl)-N-{[4-(tert-butyl)phenyl]sulfonyl}-N-[1-methyl-4-(4-methylphenyl)-3-(2-phenoxyethoxy)-1H-pyrazol-5-yl]benzenesulfonamide (Preparation 1) (80 mg) in ethanol (20 ml) at room temperature was added sodium hydroxide (2N, 2 ml) and the mixture was stirred for 16 hrs. The mixture was reduced in volume to 10 ml under reduced pressure, diluted with water (50 ml) and extracted with ethyl acetate (30 ml). The organic fraction was dried over magnesium sulfate, filtered and concentrated under reduced pressure. The residue was purified by column chromatography on silica (10 g) eluted with dichloromethane:ether (7:1) to yield the title compound as a colourless glass-like solid (7 mg).

Aufarbeitung

  1. extractionextracted with ethyl acetate (30 ml)
  2. dry with materialThe organic fraction was dried over magnesium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified by column chromatography on silica (10 g)
  6. washeluted with dichloromethane:ether (7:1)

Quellen und Nachweise

ORD-Eintrag
ord-b250d0bde93644cca0b9b681e4b8965a
Quelldatensatz
uspto-grants-2003_06
Patentnummer
US06573270B1

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