(5R,6S,5′R,6′S)-5,6,5′,6′-Diepoxy-β,β-cartin: Sythese,Spectroskopische, chiroptische und chromatographische Eigenschaften

(5R,6S,5′R,6′S)-5,6,5′,6′-Diepoxy-β,β-Carotene: Synthesis, Spectroscopical and Chiroptical Properties, and HPLC-Behaviour Using the scheme C₁₃ + C₂→C₁₅ + C₁₀→C₄₀, whereby C₁₃ = (5R,6S)-5,6-epoxy-β-ionone 8], the title compound 11a , (R = H), has been prepared and characterized. It exhibits nearly identical CD spectra as violaxanthin ( 11b , R = OH).