Carbon tetrabromide → HCID 10858994, Verbindung

HRID 260825Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 260825
[CH2:1]([C:5]1[CH:10]=[CH:9][C:8]([CH:11](O)[CH2:12][CH2:13][CH2:14][CH3:15])=[CH:7][CH:6]=1)[CH:2]([CH3:4])[CH3:3].C(Br)(Br)(Br)[Br:18].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>O1CCCC1>[Br:18][CH:11]([C:8]1[CH:9]=[CH:10][C:5]([CH2:1][CH:2]([CH3:4])[CH3:3])=[CH:6][CH:7]=1)[CH2:12][CH2:13][CH2:14][CH3:15]

Komponenten

5

Edukt 3

HCID 11205Carbon tetrabromideHCID 11776TriphenylphosphineHCID 11790735HCID 11790735, Verbindung

Produkt 1

HCID 10858994HCID 10858994, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

To a mixture of 1-(4-isobutylphenyl)pentanol and carbon tetrabromide in tetrahydrofuran was added triphenylphosphine and the mixture was stirred at room temperature for 1 hour. Insoluble materials were removed by filtration and the filtrate was concentrated. Hexane was added to the residue and the mixture was filtered again. Concentration of the filtrate gave crude 1-bromo-1-(4-isobutylphenyl)pentane. Sodium was added portionwise to 1,3-propanediol at 80° C. while stirring. The obtained crude 1-bromo-1-(4-isobutylphenyl)pentane was added thereto, and the mixture was stirred at 120° C. for 30 minutes. After the mixture was cooled, diluted hydrochloric acid was added thereto, and the mixture was extracted with ethyl acetate.

Aufarbeitung

  1. customInsoluble materials were removed by filtration
  2. concentrationthe filtrate was concentrated
  3. additionHexane was added to the residue
  4. filtrationthe mixture was filtered again

Quellen und Nachweise

ORD-Eintrag
ord-b6fdecfe883442f0a52649a6cce1c707
Quelldatensatz
uspto-grants-1996_06
Patentnummer
US05530019

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