4-Bromophenol → 1-Bromo-4-{[(3S)-3,7-dimethyloct-6-en-1-yl]oxy}benzene

HRID 915501Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 915501
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([OH:8])=[CH:4][CH:3]=1.[CH2:9](Br)[CH2:10][C@H:11]([CH2:13][CH2:14][CH:15]=[C:16]([CH3:18])[CH3:17])[CH3:12].C(=O)([O-])[O-].[K+].[K+]>CC(=O)CC>[Br:1][C:2]1[CH:7]=[CH:6][C:5]([O:8][CH2:9][CH2:10][C@@H:11]([CH3:12])[CH2:13][CH2:14][CH:15]=[C:16]([CH3:18])[CH3:17])=[CH:4][CH:3]=1

Komponenten

5

Edukt 3

HCID 78084-BromophenolHCID 11430Potassium CarbonateHCID 10900106(S)-(+)-Citronellyl bromide

Produkt 1

HCID 693802941-Bromo-4-{[(3S)-3,7-dimethyloct-6-en-1-yl]oxy}benzeneAusbeute 590,9 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6569Methyl Ethyl KetoneLösungsmittel

Versuchsvorschrift

A mixture of 4-bromophenol (34.6 g, 0.20 mol), (S)-(+)-citronellyl bromide (50 g, 0.023 mol) and potassium carbonate (45 g, 0.33 mol) in butanone (500 cm3) was heated under reflux overnight. The cooled reaction mixture was filtered and the filtrate concentrated under reduced pressure. The crude product was purified by fractional distillation to yield 42.3 g (68.2%) of the desired product.

Aufarbeitung

  1. temperaturewas heated
  2. temperatureunder reflux overnight
  3. customThe cooled reaction mixture
  4. filtrationwas filtered
  5. concentrationthe filtrate concentrated under reduced pressure
  6. distillationThe crude product was purified by fractional distillation

Quellen und Nachweise

ORD-Eintrag
ord-10e3b97bc0a44d04b2c21c83c09c4f3a
Quelldatensatz
uspto-grants-2007_09
Patentnummer
US07265163B2

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