(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).