Acetophenone → beta-Bourbonene
Reaktionsgleichung
[CH3:1][C:2]1=[CH:3][CH2:4][CH2:5][C:6]([CH:8]=[CH:9][C@H:10]([CH:13]([CH3:15])[CH3:14])[CH2:11][CH2:12]1)=[CH2:7].C(C1C=CC=CC=1)(=O)C>CCCCCC>[CH3:14][CH:13]([C@H:10]1[C@@H:11]2[C@H:12]3[C:2](=[CH2:1])[CH2:3][CH2:4][C@H:5]3[C@:6]2([CH3:7])[CH2:8][CH2:9]1)[CH3:15]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
60 kg of leaves of Solidago gigantea Aiton var. leiophylla Fern. was steam-distilled and 120 g of essential oil was obtained. 100 g of the essential oil containing 40 g of germacrene D was dissolved in 20 l of n-hexane with addition of 50 g of acetophenone and was subjected to internal irradiation with the light of high pressure mercury lamp for 12 hours. After fractional distillation under reduced pressure, 37 g of β-bourbonene was obtained. (Conversion Ratio: 93%)