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Benzyl Bromide → 6-(Benzyloxy)-2,3-difluorobenzaldehyde

HRID 1043215
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1043215
[F:1][C:2]1[C:9]([F:10])=[CH:8][CH:7]=[C:6]([OH:11])[C:3]=1[CH:4]=[O:5].Br[CH2:13][C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1.C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O>[CH2:13]([O:11][C:6]1[C:3]([CH:4]=[O:5])=[C:2]([F:1])[C:9]([F:10])=[CH:8][CH:7]=1)[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

5

Edukt 3

HCID 7498Benzyl BromideHCID 11430Potassium CarbonateHCID 212210312,3-Difluoro-6-hydroxybenzaldehyde

Produkt 1

HCID 534408986-(Benzyloxy)-2,3-difluorobenzaldehyde

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
70 °C

Versuchsvorschrift

A mixture of 2,3-difluoro-6-hydroxybenzaldehyde (0.93 g), (bromomethyl)benzene (1.11 g) and potassium carbonate (1.22 g) in N,N-dimethylformamide (15 mL) was heated at 70° C. overnight. After cooling to room temperature, the reaction mixture was partitioned between water and ethyl acetate. The organic layer was separated, and the aqueous layer was extracted with additional ethyl acetate three times. The combined organic layers were washed with brine, dried over MgSO4, filtered, and concentrated. The residue was purified by flash chromatography on silica gel to give the title compound.

Aufarbeitung

  1. temperatureAfter cooling to room temperature
  2. customthe reaction mixture was partitioned between water and ethyl acetate
  3. customThe organic layer was separated
  4. extractionthe aqueous layer was extracted with additional ethyl acetate three times
  5. washThe combined organic layers were washed with brine
  6. dry with materialdried over MgSO4
  7. filtrationfiltered
  8. concentrationconcentrated
  9. customThe residue was purified by flash chromatography on silica gel

Quellen und Nachweise

ORD-Eintrag
ord-d589bd2625f5466b949e60fd00af5eff
Quelldatensatz
uspto-grants-2013_10
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08557983B2

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