Water → 3-(4-Aminophenyl)-5-(1-methyl-1H-pyrazol-4-yl)pyridin-2-amine

HRID 1428111Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1428111
O.C(=O)([O-])[O-].[K+].[K+].[NH2:8][C:9]1[CH:14]=[CH:13][C:12]([C:15]2[C:16]([NH2:22])=[N:17][CH:18]=[C:19](Br)[CH:20]=2)=[CH:11][CH:10]=1.[CH3:23][N:24]1[CH:28]=[C:27](B2OC(C)(C)C(C)(C)O2)[CH:26]=[N:25]1>O1CCOCC1.C(Cl)(Cl)Cl.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[NH2:8][C:9]1[CH:14]=[CH:13][C:12]([C:15]2[C:16]([NH2:22])=[N:17][CH:18]=[C:19]([C:27]3[CH:26]=[N:25][N:24]([CH3:23])[CH:28]=3)[CH:20]=2)=[CH:11][CH:10]=1

Komponenten

8

Edukt 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 27739871-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazoleHCID 682889763-(4-Aminophenyl)-5-bromopyridin-2-amine

Produkt 1

HCID 867000643-(4-Aminophenyl)-5-(1-methyl-1H-pyrazol-4-yl)pyridin-2-amineAusbeute 57,2 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 178418397HCID 178418397, VerbindungKatalysatorHCID 6212ChloroformLösungsmittelHCID 312751,4-DioxaneLösungsmittel

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

Water (5 ml), potassium carbonate (1742 mg) and tetrakis(triphenylphosphine)palladium (242 mg) were added to a solution of the compound obtained in Step 1 of Example 1 (1110 mg) and 1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (874 mg) in 1,4-dioxane (50 ml), and the mixture was stirred at 100° C. for five hours. After leaving to cool, the reaction solution was diluted with chloroform. The organic layer was washed with water and brine and dried over sodium sulfate. The solvent was distilled off under reduced pressure, and the residue was purified by silica gel column chromatography [chloroform:methanol=96:4 (v/v)] to give 638 mg of the title compound as a solid.

Aufarbeitung

  1. customAfter leaving
  2. temperatureto cool
  3. washThe organic layer was washed with water and brine
  4. dry with materialdried over sodium sulfate
  5. distillationThe solvent was distilled off under reduced pressure
  6. customthe residue was purified by silica gel column chromatography [chloroform:methanol=96:4 (v/v)]

Quellen und Nachweise

ORD-Eintrag
ord-e137cd6a2e4146a59f6aa467d85ab756
Quelldatensatz
uspto-grants-2015_01
Patentnummer
US08933103B2

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