Reaktion #157747

ord-0119a32b104e4da9b9562b6b942d0ba1

Lösungsmittel

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    Temperaturcooling
  2. 2
    Extraktionfollowed by extraction with a mixture of hexane-ethyl acetate (1:1)
  3. 3
    TrocknenThe organic layer was dried over sodium sulfate
  4. 4
    Filtrationfiltered
  5. 5
    SonstigeThe solvent was then evaporated under reduced pressure
  6. 6
    SonstigeThe residue was purified by silica gel column chromatography (hexane:ethyl acetate=100:1→50:1→30:1)

Vorschrift

Sodium hydride (purity: 55%, 700 mg) and 1-bromo-3-methylbutane (2.56 mL) were added to a solution of 4-bromobenzylalcohol (2.0 g) in N,N-dimethylformamide (40 mL) under ice-cooling, and the mixture was stirred at room temperature for five hours. A saturated ammonium chloride solution was added to the reaction solution, followed by extraction with a mixture of hexane-ethyl acetate (1:1). The organic layer was dried over sodium sulfate and filtered. The solvent was then evaporated under reduced pressure. The residue was purified by silica gel column chromatography (hexane:ethyl acetate=100:1→50:1→30:1) to give the title compound (2.31 g, 85%).

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US08822503B2uspto-grants-2014_09