Carotenoid radical anions and their protonated derivatives

El-Agamey, A, Edge, R, Navaratnam, S, Land, EJ and Truscott, TG 2006, 'Carotenoid radical anions and their protonated derivatives' , Organic Letters, 8 (19) , pp. 4255-4258.

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In this study, we report the protonation reactions for astaxanthin and canthaxanthin radical anions in methanol, alkaline methanol, and aqueous 2% Triton X-100 at different pH values. The pKa values for the corresponding alpha-hydroxy radical derivatives of astaxanthin, canthaxanthin, and beta-apo-8'-carotenal were estimated in 2% Triton X-100. Also, the effects of the microenvironment and the structure of the carotenoids on the protonation rate constant are discussed.

Item Type: Article
Themes: Subjects / Themes > Q Science > Q Science (General)
Subjects outside of the University Themes
Schools: Schools > School of Environment and Life Sciences
Journal or Publication Title: Organic Letters
Publisher: ACS Publications
Refereed: Yes
ISSN: 15237060
Depositing User: H Kenna
Date Deposited: 08 Aug 2007 09:24
Last Modified: 27 Aug 2021 21:58

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