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Potassium Carbonate → methyl 4-(1-(2,6-difluorophenyl)-4-methoxy-1H-pyrazolo[4,3-c]pyridin-3-yl)benzoate

HRID 2206183
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2206183
FC(F)(F)S(O[C:7]1[C:11]2[C:12]([O:16][CH3:17])=[N:13][CH:14]=[CH:15][C:10]=2[N:9]([C:18]2[C:23]([F:24])=[CH:22][CH:21]=[CH:20][C:19]=2[F:25])[N:8]=1)(=O)=O.CC1(C)C(C)(C)OB([C:36]2[CH:45]=[CH:44][C:39]([C:40]([O:42][CH3:43])=[O:41])=[CH:38][CH:37]=2)O1.C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C.O>[F:24][C:23]1[CH:22]=[CH:21][CH:20]=[C:19]([F:25])[C:18]=1[N:9]1[C:10]2[CH:15]=[CH:14][N:13]=[C:12]([O:16][CH3:17])[C:11]=2[C:7]([C:36]2[CH:45]=[CH:44][C:39]([C:40]([O:42][CH3:43])=[O:41])=[CH:38][CH:37]=2)=[N:8]1
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 3

HCID 11430Potassium CarbonateHCID 2773500Methyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoateHCID 1179878991-(2,6-difluorophenyl)-4-methoxy-1H-pyrazolo[4,3-c]pyridin-3-yl trifluoromethanesulfonate

Produkt 1

HCID 117988531methyl 4-(1-(2,6-difluorophenyl)-4-methoxy-1H-pyrazolo[4,3-c]pyridin-3-yl)benzoateAusbeute 89 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962
Water
Lösungsmittel
2×
HCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
90 °C

Versuchsvorschrift

To a solution of 1-(2,6-difluorophenyl)-4-methoxy-1H-pyrazolo[4,3-c]pyridin-3-yl trifluoromethanesulfonate (3.20 g) obtained in Step C of Example 35 in DMF (20 mL)/water (2.0 mL) were added methyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate (2.87 g), (1,1′-bis(diphenylphosphino)ferrocene)dichloropalladium(II) (319 mg) and potassium carbonate (2.16 g). The reaction mixture was stirred overnight at 90° C. The reaction mixture was diluted with water, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, filtered, and concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (hexane/ethyl acetate) to give the title compound (2.75 g).

Aufarbeitung

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe obtained residue was purified by silica gel column chromatography (hexane/ethyl acetate)

Quellen und Nachweise

ORD-Eintrag
ord-014207d7a1794ab3847a522380915d26
Quelldatensatz
uspto-grants-2016_06
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09371320B2

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