1,2-Dibromoethane → 1-(2-Bromoethoxy)-4-iodobenzene

HRID 1700889Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1700889
[I:1][C:2]1[CH:7]=[CH:6][C:5]([OH:8])=[CH:4][CH:3]=1.[Br:9][CH2:10][CH2:11]Br.C(=O)([O-])[O-].[K+].[K+]>>[Br:9][CH2:10][CH2:11][O:8][C:5]1[CH:6]=[CH:7][C:2]([I:1])=[CH:3][CH:4]=1

Komponenten

4

Edukt 3

HCID 78391,2-DibromoethaneHCID 108944-IodophenolHCID 11430Potassium Carbonate

Produkt 1

HCID 19058471-(2-Bromoethoxy)-4-iodobenzeneAusbeute 84 %

Versuchsvorschrift

A mixture of 4-iodophenol (15.0 g, 68.2 mmol) and 1,2-dibromoethane (50 ml, 580 mmol) and potassium carbonate (14.0 g, 0.1 mol) was stirred and refluxed for 22 h. After cooling to r.t., the mixture was filtered, washed with ethyl acetate and concentrated in vacuo. The residue was chromatographed on silica gel (Hexane/ethyl acetate 40:1 to 20:1) to afford the title compound (18.7 g, 84%) as a white solid.

Aufarbeitung

  1. temperaturerefluxed for 22 h
  2. filtrationthe mixture was filtered
  3. washwashed with ethyl acetate
  4. concentrationconcentrated in vacuo
  5. customThe residue was chromatographed on silica gel (Hexane/ethyl acetate 40:1 to 20:1)

Quellen und Nachweise

ORD-Eintrag
ord-e13ce39eeaa34889902dcc3c10961964
Quelldatensatz
uspto-grants-2002_02
Patentnummer
US06350892B1

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