P-Cresol → 2,6-Dicyclopentyl-4-methylphenol

HRID 597101

Reaktionsgleichung

Reaktionsgleichung von HRID 597101
[CH:1]1[CH2:5][CH2:4][CH2:3][CH:2]=1.[CH:6]1[C:11]([OH:12])=[CH:10][CH:9]=[C:8]([CH3:13])[CH:7]=1>>[CH:1]1([C:6]2[CH:7]=[C:8]([CH3:13])[CH:9]=[C:10]([CH:1]3[CH2:5][CH2:4][CH2:3][CH2:2]3)[C:11]=2[OH:12])[CH2:5][CH2:4][CH2:3][CH2:2]1

Komponenten

3

Edukt 2

HCID 2879P-CresolHCID 8882Cyclopentene

Produkt 1

HCID 6184642,6-Dicyclopentyl-4-methylphenolAusbeute 36,9 %

Reaktionsbedingungen

Temperatur
140 °C

Versuchsvorschrift

840 g of cyclopentene are added dropwise to 648 g of p-cresol and 60 g of an acid-activated fuller's earth at 140° C. Next the mixture is stirred at 140° C for 15 h. After having removed the catalyst by filtration the mixture is fractionated. In the boiling range of 153°-156° C 540 g of 2,6-dicyclopentyl-4-methylphenol are obtained (0.8 mm Hg) and between 167°-170° C 422 g of a fraction (0.8 mm Hg) which is recrystallised from petroleum ether. Yield: 360 g of 2,5-dicyclopentyl-4-methylphenol. Melting point: 78° C.

Aufarbeitung

  1. customAfter having removed the catalyst
  2. filtrationby filtration the mixture

Quellen und Nachweise

ORD-Eintrag
ord-6a84c57fcb8b4243b8c87d275379c29e
Quelldatensatz
uspto-grants-1977_03
Patentnummer
US04013473

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