2,6,10-Trimethyl-dodeca-4,8-dien-1-al → 2,6,10-Trimethyl-dodecan-1-al
Reaktionsgleichung
[CH3:1][CH:2]([CH2:5][CH:6]=[CH:7][CH:8]([CH3:16])[CH2:9][CH:10]=[CH:11][CH:12]([CH3:15])[CH2:13][CH3:14])[CH:3]=[O:4]>O1CCCC1.[Pd]>[CH3:1][CH:2]([CH2:5][CH2:6][CH2:7][CH:8]([CH3:16])[CH2:9][CH2:10][CH2:11][CH:12]([CH3:15])[CH2:13][CH3:14])[CH:3]=[O:4]Komponenten
4
Edukt 1
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 2
Versuchsvorschrift
22 g (0.1 mole) of 2,6,10-trimethyl-dodeca-4,8-dien-1-al are dissolved in 20 ml of tetrahydrofuran, 1 g of a palladium/charcoal catalyst (1%) is added and hydrogenation is carried out at 70° C until the absorption of hydrogen has ceased. The catalyst is then filtered off, the solvent distilled off and the residue is fractionated through a descending condenser. 21 g of 2,6,10-trimethyl-dodecan-1-al are obtained (yield, 93% of theory). B.p. = 80° - 81° C at 0.3 mm Hg; nD25 = 1.4456. Odor: bitter, greener and more aldehyde-like orange scent.