OH radical oxidation of the sorbitylfurfural furanic ring to sugar derivatives induced by radiolysis in aerobic environment

OH radical oxidation of the sorbitylfurfural furanic ring to sugar derivatives induced by... Chemical radiolytic oxidation induced by OH addition on 1-(2-furan-2-yl-5-hydroxy-6-hydroxymethyl-[1,3]dioxan-4-yl)-ethan-1,2-diol (sorbitylfurfural, SF) leads, in the presence of controlled amounts of oxygen, to a permanent functional modification of the target molecule. The yield of conversion reaches 60% of the starting material. LC-MS analysis allowed the identification, as final products, of carboxylic acids, butenal and hydroxy-furan derivatives in which the sugar chain remains unbroken, while the furanic ring is attacked first by OH and then by oxygen, giving in succession an intra-/inter-molecular rearrangement of the allylperoxyl radicals thus formed. The proposed oxidation of the furanic ring envisages the peroxyl intermediates undergoing mono- and/or bi-molecular reactions; a reaction path has been outlined and is reported here. The presence of unsaturated bonds in the final products could provide a further site for radical scavenger activity. Therefore, the fast reaction with O2 and the rearrangement of the produced peroxyl radicals to species, which are likely to be effective OH-capturers, reinforces the antioxidant ability of SF. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

OH radical oxidation of the sorbitylfurfural furanic ring to sugar derivatives induced by radiolysis in aerobic environment

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Publisher
Brill Academic Publishers
Copyright
Copyright © 2006 by VSP
Subject
Chemistry; Inorganic Chemistry; Physical Chemistry; Catalysis
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1163/156856706775372816
Publisher site
See Article on Publisher Site

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