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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Abstract

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:	Colleges and Schools > College of Science & Technology Colleges and Schools > College of Science & Technology > School of Environment and Life Sciences
Journal or Publication Title:	Organic Letters
Publisher:	The American Chemical Society
Refereed:	Yes
ISSN:	15237060
Depositing User:	H Kenna
Date Deposited:	08 Aug 2007 10:24
Last Modified:	27 Sep 2011 12:20
URI:	http://usir.salford.ac.uk/id/eprint/164

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