Molecular Structure of the Photo-Oxidation Product of Ellagic Acid in Solution

[Image: see text] The photoreaction of the antioxidant ellagic acid (EA) elicits a drastic coloration in solution from colorless to yellow in aerated tetrahydrofuran, which appears as a new absorption band at 405 nm. Analysis of the X-ray crystal structure suggests that the photo-oxidation product o...

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Detalles Bibliográficos
Autores principales: Tokutomi, Hisashi, Takeda, Takashi, Hoshino, Norihisa, Akutagawa, Tomoyuki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2018
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6645270/
https://www.ncbi.nlm.nih.gov/pubmed/31459227
http://dx.doi.org/10.1021/acsomega.8b01716
Descripción
Sumario:[Image: see text] The photoreaction of the antioxidant ellagic acid (EA) elicits a drastic coloration in solution from colorless to yellow in aerated tetrahydrofuran, which appears as a new absorption band at 405 nm. Analysis of the X-ray crystal structure suggests that the photo-oxidation product of EA is a multiple cleavage π-structure (Ox-EA) that results from the interaction of EA with singlet oxygen followed by sequential cleavage and rearrangement steps.

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