Sodium Bicarbonate → HCID 10236611, Verbindung

HRID 586238

Reaktionsgleichung

Reaktionsgleichung von HRID 586238
[F:1][C:2]1[CH:7]=[CH:6][C:5](B2OC(C)(C)C(C)(C)O2)=[CH:4][C:3]=1[O:17][CH3:18].Br[C:20]1[N:24]2[N:25]=[CH:26][C:27]([C:29]([F:32])([F:31])[F:30])=[N:28][C:23]2=[N:22][CH:21]=1.C([O-])(O)=O.[Na+]>COCCOC.C(OCC)(=O)C.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:1][C:2]1[CH:7]=[CH:6][C:5]([C:20]2[N:24]3[N:25]=[CH:26][C:27]([C:29]([F:30])([F:31])[F:32])=[N:28][C:23]3=[N:22][CH:21]=2)=[CH:4][C:3]=1[O:17][CH3:18]

Komponenten

7

Edukt 3

HCID 516892Sodium BicarbonateHCID 11601416HCID 11601416, VerbindungHCID 222853052-(4-Fluoro-3-methoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

Produkt 1

HCID 10236611HCID 10236611, VerbindungAusbeute 47 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 178418397HCID 178418397, VerbindungKatalysatorHCID 80711,2-DimethoxyethaneLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Reaktionsbedingungen

Temperatur
95 °C

Versuchsvorschrift

A mixture of 2-(4-fluoro-3-methoxyphenyl)-4,4,5,5-tetramethyl-[1,3,2]dioxaborolane (0.637 g, 2.528 mmol), 7-bromo-3-trifluoromethylimidazo[1,2-b][1,2,4]triazine (0.5 g, 1.873 mmol) and saturated aqueous NaHCO3 (10 ml) in 1,2-dimethoxyethane (25 ml) was degassed by evacuation and refilling with nitrogen three times. Tetrakis(triphenylphosphine)palladium(0) (0.169 g, 0.078 mmol) was added and the mixture was stirred under nitrogen at 95° C. for 17 h. After allowing to cool to ambient temperature, the mixture was diluted with ethyl acetate then filtered through glass fibre paper. The combined filtrates were partitioned between water (100 ml) and ethyl acetate (100 ml). The organic extracts were dried (MgSO4) and evaporated in vacuo. The residue was purified by flash chromatography (silica gel, 25% EtOAc/isohexane), to give 275 mg (47%) of the title compound: 1H NMR (360 MHz, CDCl3) δ 4.00 (3H, s), 7.26 (1H, dd, J 10.9, 8.4 Hz), 7.61-7.64 (1H, m), 7.76 (1H, dd, J 2.1, 8.1 Hz), 8.58 (1H, s), 8.81 (1H, s).

Aufarbeitung

  1. customwas degassed by evacuation and refilling with nitrogen three times
  2. temperatureto cool to ambient temperature
  3. filtrationthen filtered through glass fibre paper
  4. customThe combined filtrates were partitioned between water (100 ml) and ethyl acetate (100 ml)
  5. dry with materialThe organic extracts were dried (MgSO4)
  6. customevaporated in vacuo
  7. customThe residue was purified by flash chromatography (silica gel, 25% EtOAc/isohexane)

Quellen und Nachweise

ORD-Eintrag
ord-03bbaca8427945e7b5ae4c7d0ecb60fb
Quelldatensatz
uspto-grants-2005_08
Patentnummer
US06936608B2

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