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Sodium Chloride → 5-[3-(4-Fluoro-phenyl)-5-methyl-isoxazol-4-ylmethoxy]-2-methyl-2H-pyrazole-3-carboxylic acid amide

HRID 1695394
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1695394
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:12]([CH2:13][O:14][C:15]3[CH:16]=[C:17]([C:21](O)=[O:22])[N:18]([CH3:20])[N:19]=3)=[C:11]([CH3:24])[O:10][N:9]=2)=[CH:4][CH:3]=1.C(N1C=CN=C1)([N:27]1C=CN=C1)=O.[OH-].[NH4+].[Cl-].[Na+]>CN(C=O)C>[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:12]([CH2:13][O:14][C:15]3[CH:16]=[C:17]([C:21]([NH2:27])=[O:22])[N:18]([CH3:20])[N:19]=3)=[C:11]([CH3:24])[O:10][N:9]=2)=[CH:4][CH:3]=1
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Komponenten

6

Edukt 4

HCID 5234Sodium ChlorideHCID 14923Ammonium HydroxideHCID 682631,1'-CarbonyldiimidazoleHCID 66643617HCID 66643617, Verbindung

Produkt 1

HCID 595684665-[3-(4-Fluoro-phenyl)-5-methyl-isoxazol-4-ylmethoxy]-2-methyl-2H-pyrazole-3-carboxylic acid amideAusbeute 79 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
60 °C

Versuchsvorschrift

To a solution of 5-[3-(4-fluoro-phenyl)-5-methyl-isoxazol-4-ylmethoxy]-2-methyl-2H-pyrazole-3-carboxylic acid (100 mg, 0.36 mmol) in DMF (8.3 mL) was added 1,1′-carbonyldiimidazole (60.6 mg, 0.36 mmol). The resulting reaction mixture was stirred for 1 h at 60° C. and then treated with an ammonium hydroxide solution (465 μL, 3.0 mmol) and stirred overnight at room temperature. The reaction mixture was then poured into aqueous sodium chloride (saturated) and the mixture was extracted with ethyl acetate. The combined organic layers were then washed with water and saturated sodium hydrogen carbonate solution and then dried over sodium sulfate, filtered and evaporated. Concentration and purification by chromatography (silica, dichloromethane:methanol=99:1 to 95:5) afforded the title compound (79 mg, 79%) as a white solid. MS: m/e=331.2 [M+H]+.

Aufarbeitung

  1. customThe resulting reaction mixture
  2. stirringstirred overnight at room temperature
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe combined organic layers were then washed with water and saturated sodium hydrogen carbonate solution
  5. dry with materialdried over sodium sulfate
  6. filtrationfiltered
  7. customevaporated
  8. concentrationConcentration and purification by chromatography (silica, dichloromethane:methanol=99:1 to 95:5)

Quellen und Nachweise

ORD-Eintrag
ord-56eef6e8504a40e9a1124dd828438597
Quelldatensatz
uspto-grants-2012_04
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08163728B2

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