Water → 3-(3-Fluorobiphenyl-4-yl)pyridin-2-amine

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Reaktionsgleichung

Br[C:2]1[C:3]([NH2:8])=[N:4][CH:5]=[CH:6][CH:7]=1.[F:9][C:10]1[CH:11]=[C:12]([C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=2)[CH:13]=[CH:14][C:15]=1B(O)O.C(=O)([O-])[O-].[Na+].[Na+].O>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>[F:9][C:10]1[CH:11]=[C:12]([C:19]2[CH:20]=[CH:21][CH:22]=[CH:23][CH:24]=2)[CH:13]=[CH:14][C:15]=1[C:2]1[C:3]([NH2:8])=[N:4][CH:5]=[CH:6][CH:7]=1

Komponenten

Reaktionsbedingungen

Temperatur: 80 °C

Versuchsvorschrift

To a solution of 3-bromopyridin-2-amine (1.0 g) in 1,2-dimethoxyethane (50 mL) were added 3-fluorobiphenyl-4-ylboronic acid (1.623 g), sodium carbonate (1.225 g), tetrakis(triphenylphosphine)palladium(0) (0.334 g), and water (10 mL) at room temperature. The reaction mixture was stirred under a nitrogen atmosphere at 80° C. for 4 hr, water was added, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure. The residue was purified by recrystallization (THF/diisopropyl ether) to give the title compound (1.528 g).

Aufarbeitung

extractionthe mixture was extracted with ethyl acetate
washThe extract was washed with saturated brine
dry with materialdried over anhydrous sodium sulfate
customThe solvent was evaporated under reduced pressure
customThe residue was purified by recrystallization (THF/diisopropyl ether)

Quellen und Nachweise

ORD-Eintrag: ord-b926ea28d9e34a448816d45e725e8f61
Quelldatensatz: uspto-grants-2014_07
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US08778934B2

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