HPLC von Carotinen mit ?-Endgruppen und (Z)-Konfiguration an terminalen konjugierten Doppelbindungen; Isolierung von (5Z)-Lycopin aus Tomaten

HPLC of Carotenes with ψ-End Groups and (Z)-Configuration at Terminal Conjugated Double Bonds; Isolation of (5Z)-Lycopene from Tomatoes Five carotenes bearing (5Z)-ψ-end groups were synthesized and carefully characterized: (5Z)-lycopene (6), (5Z5′Z)-lycopene (7), (5′Z)-neurosporene (8), (5′Z)-β,ψ-carotene (12), and (5′Z)-e,ψ-carotene (14). Lycopene 6 was isolated from tomatoes and its structure proven by 1H-NMR spectroscopy.