1,2-Dimethoxyethane → methyl 5-(4-(1H-pyrazol-1-yl)benzyl)-3-fluoro-2-hydroxy-4-methylbenzoate

HRID 629435

Reaktionsgleichung

Reaktionsgleichung von HRID 629435
[F:1][C:2]1[C:3]([OH:22])=[C:4]([CH:9]=[C:10](B2OC(C)(C)C(C)(C)O2)[C:11]=1[CH3:12])[C:5]([O:7][CH3:8])=[O:6].Cl[CH2:24][C:25]1[CH:30]=[CH:29][C:28]([N:31]2[CH:35]=[CH:34][CH:33]=[N:32]2)=[CH:27][CH:26]=1.C(=O)([O-])[O-].[Na+].[Na+].COCCOC>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.O>[N:31]1([C:28]2[CH:29]=[CH:30][C:25]([CH2:24][C:10]3[C:11]([CH3:12])=[C:2]([F:1])[C:3]([OH:22])=[C:4]([CH:9]=3)[C:5]([O:7][CH3:8])=[O:6])=[CH:26][CH:27]=2)[CH:35]=[CH:34][CH:33]=[N:32]1

Komponenten

7

Edukt 4

HCID 80711,2-DimethoxyethaneHCID 10340Sodium CarbonateHCID 71308871-[4-(chloromethyl)phenyl]-1H-pyrazoleHCID 131735372Methyl 3-fluoro-2-hydroxy-4-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate

Produkt 1

HCID 118468110methyl 5-(4-(1H-pyrazol-1-yl)benzyl)-3-fluoro-2-hydroxy-4-methylbenzoateAusbeute 14,2 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178418397HCID 178418397, VerbindungKatalysatorHCID 962WaterLösungsmittel2×

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

Tetrakis(triphenylphosphine)palladium(0) (0.40 g) was added to a mixture of methyl 3-fluoro-2-hydroxy-4-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate (2.13 g), 1-(4-(chloromethyl)phenyl)-1H-pyrazole (1.32 g), sodium carbonate (1.46 g), DME (30.0 mL) and water (10.0 mL) under argon atmosphere, and the mixture was stirred overnight at 80° C. The reaction mixture was allowed to be cooled to room temperature, water was added thereto, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (0.33 g).

Aufarbeitung

  1. temperatureto be cooled to room temperature
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe organic layer was washed with saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customthe solvent was evaporated under reduced pressure
  6. customThe residue was purified by silica gel column chromatography (ethyl acetate/hexane)

Quellen und Nachweise

ORD-Eintrag
ord-e1e619c23bff4b029fcd87eabdc68dc2
Quelldatensatz
uspto-grants-2016_04
Patentnummer
US09315458B2

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