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

Hisashi Tokutomi | Zendy; Takashi Takeda | Zendy; Norihisa Hoshino | Zendy; Tomoyuki Akutagawa | Zendy

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

Author(s) -

Hisashi Tokutomi,

Takashi Takeda,

Norihisa Hoshino,

Tomoyuki Akutagawa

Publication year - 2018

Publication title -

acs omega

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.779

H-Index - 40

ISSN - 2470-1343

DOI - 10.1021/acsomega.8b01716

Subject(s) - ellagic acid , chemistry , singlet oxygen , cleavage (geology) , photochemistry , tetrahydrofuran , crystal structure , oxygen , organic chemistry , stereochemistry , antioxidant , materials science , solvent , polyphenol , fracture (geology) , composite material

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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