Diisopropyl Ether → 2,4-Di-tert-butyl-6-(prop-2-en-1-yl)phenol
Reaktionsgleichung
[C:1]([C:5]1[CH:10]=[C:9]([C:11]([CH3:14])([CH3:13])[CH3:12])[CH:8]=[CH:7][C:6]=1[O:15]CC=C)([CH3:4])([CH3:3])[CH3:2].[CH:19](OC(C)C)([CH3:21])[CH3:20]>>[CH2:21]([C:7]1[CH:8]=[C:9]([C:11]([CH3:12])([CH3:13])[CH3:14])[CH:10]=[C:5]([C:1]([CH3:2])([CH3:3])[CH3:4])[C:6]=1[OH:15])[CH:19]=[CH2:20]Komponenten
3
Versuchsvorschrift
10 g of 2,4-di-tert-butylallyloxybenzene are heated under nitrogen to 245° C. for 45 minutes. The yellow crude oil is taken up in diisopropyl ether. The ether phase is washed with 3 % sodium hydroxide and then with water. After drying and evaporation of the solvent, the oil obtained (7.6 g) is chromatographed on silica gel 60 (eluent: 80/20 heptane/CH2Cl2). A pale-yellow oil of 2-allyl-4,6-di-tert-butylphenol is obtained (5.4 g, yield =54 %).
Aufarbeitung
- washThe ether phase is washed with 3 % sodium hydroxide
- customAfter drying
- customevaporation of the solvent
- customthe oil obtained (7.6 g)