Dimethylamine → N,N,3,7-tetramethylocta-2,6-dien-1-amine
Reaktionsgleichung
[CH2:1](Br)/[CH:2]=[C:3](/[CH2:5][CH2:6][CH:7]=[C:8]([CH3:10])[CH3:9])\[CH3:4].[CH3:12][NH:13][CH3:14]>C(O)C>[CH3:12][N:13]([CH3:14])[CH2:1][CH:2]=[C:3]([CH3:4])[CH2:5][CH2:6][CH:7]=[C:8]([CH3:10])[CH3:9]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
Geranylbromide (20 g) in ethanol (50 ml) was added to 33% dimethylamine in industrial methylated spirits (240 ml) and the mixture was heated at reflux for 8 hours. The reaction mixture was evaporated to dryness, mixed with 2N sodium hydroxide (50 ml) and then extracted with diethyl ether (2×100ml). The ether extracts were combined and washed with water (50 ml), then dried with anhydrous magnesium sulphate and evaporated to dryness. The resulting orange oil was purified by chromatography (with a gradient CH2Cl2 :MeOH system as eluent) to give 1-dimethylamino-3.7-dimethyl-2,6-octadiene as an oil (12.1 g, 72%).