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Preparation and Spectroscopic Characterization of (9Z,9′Z)-Lutein (Neolutein C)

✍ Scribed by Péter Molnár; Erzsébet Ősz; Gyula Tóth; Ferenc Zsila; József Deli

Publisher
John Wiley and Sons
Year
2006
Tongue
German
Weight
89 KB
Volume
89
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

The preparation of pure, crystalline (9__Z__,9′Z)‐lutein (neolutein C; 2) by I~2~‐catalyzed photoisomerization of (all‐E)‐lutein (1) is described. The structure of 2 was unambiguously determined by UV/VIS, CD, and NMR spectroscopy, as well as by mass spectrometry, and the complete assignment of the ^13^C‐NMR spectrum of this carotenoid is presented for the first time.

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