Preparation of partially acetylated carotenoids

TitlePreparation of partially acetylated carotenoids
Publication TypeJournal Article
Year of Publication2002
AuthorsMolnár, P, Osz, E, Zsila, F, Simonyi, M, Deli, J
JournalHelvetica Chimica Acta
Pagination2349 - 2357
Date Published2002

Partially acetylated carotenoids were prepared from fully acetylated carotenoids by reaction with NaBH4, and were characterized by UV/VIS, CD, 1H-NMR and mass spectra. The 3,6′-diacetate, 3′,6′-diacetate, and 6′-acetate 10-12, respectively, of (6′R)-capsanthol (=3R,3′S,5′R,6′R)-β,κ- carotene-3,3κ6κ-triol; 4) were obtained from (6′R)-capsanthol-3,3′,6′-triacetate (9), and the 3- and 3′-acetates 13 and 14, respectively, of 4 from (6′R)-capsanthol 3,3′-diacetate (8). The utility of this method was also demonstrated by the preparation of zeaxanthin and lutein monoacetates 16, 19, and 20.