Water → HCID 89701795, Verbindung

HRID 2280676Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2280676
CS([O:5][C@@H:6]1[CH2:10][CH2:9][O:8][CH2:7]1)(=O)=O.[F:11][C:12]1[C:13]([CH3:28])=[C:14]([C:20]2[CH:25]=[CH:24][CH:23]=[C:22]([CH2:26][OH:27])[CH:21]=2)[C:15]([CH3:19])=[CH:16][C:17]=1O.C(=O)([O-])[O-].[Cs+].[Cs+].O>CN(C)C=O>[F:11][C:12]1[C:13]([CH3:28])=[C:14]([C:20]2[CH:25]=[CH:24][CH:23]=[C:22]([CH2:26][OH:27])[CH:21]=2)[C:15]([CH3:19])=[CH:16][C:17]=1[O:5][C@H:6]1[CH2:10][CH2:9][O:8][CH2:7]1

Komponenten

6

Edukt 4

HCID 962WaterHCID 10796Cesium carbonateHCID 58248246HCID 58248246, VerbindungHCID 89701791HCID 89701791, Verbindung

Produkt 1

HCID 89701795HCID 89701795, VerbindungAusbeute 50,8 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

The crude (R)-tetrahydrofuran-3-yl methanesulfonate 1b (202 mg, 1.22 mmol), the crude 3-fluoro-3′-(hydroxymethyl)-2,6-dimethylbiphenyl-4-ol 19b (200 mg, 0.81 mmol) and cesium carbonate (527 mg, 1.62 mmol) were dissolved in 5 mL of N,N-dimethylformamide. The reaction mixture was heated to 80° C. and stirred for 12 hours. The resulting mixture was mixed with 20 mL of water and extracted with ethyl acetate (30 mL×2). The combined organic phase was washed with water (30 mL) and saturated sodium chloride solution (30 mL) successively, dried with anhydrous magnesium sulphate, and filtered. The filtrate was concentrated under reduced pressure. The residue was purified by silica gel column chromatography with elution system B to obtain the title compound (S)-(3′-fluoro-2′,6′-dimethyl-4′-((tetrahydrofuran-3-yl)oxy)biphenyl-3-yl)methanol 19c (130 mg, yield 50.8%) as a colorless slime.

Aufarbeitung

  1. extractionextracted with ethyl acetate (30 mL×2)
  2. washThe combined organic phase was washed with water (30 mL) and saturated sodium chloride solution (30 mL) successively
  3. dry with materialdried with anhydrous magnesium sulphate
  4. filtrationfiltered
  5. concentrationThe filtrate was concentrated under reduced pressure
  6. customThe residue was purified by silica gel column chromatography with elution system B

Quellen und Nachweise

ORD-Eintrag
ord-3c062bbccbee4ce3bcfea134c23f7eff
Quelldatensatz
uspto-grants-2015_09
Patentnummer
US09139548B2

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