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Regenerable Radical...
Regenerable Radical-Trapping Tellurobistocopherol Antioxidants
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- Poon, Jia-fei (författare)
- Uppsala universitet,Organisk kemi
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- Yan, Jiajie (författare)
- Uppsala universitet,Organisk kemi
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- Singh, Vijay P. (författare)
- Uppsala universitet,Organisk kemi
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- Gates, Paul J. (författare)
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
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- Engman, Lars (författare)
- Uppsala universitet,Organisk kemi
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(creator_code:org_t)
- 2016-12-02
- 2016
- Engelska.
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Ingår i: Journal of Organic Chemistry. - : American Chemical Society (ACS). - 0022-3263 .- 1520-6904. ; 81:24, s. 12540-12544
- Relaterad länk:
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https://research-inf...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Tellurobistocopherols 9–11 were prepared by lithiation of the corresponding bromotocopherols, reaction with tellurium tetrachloride and reductive workup. Compounds 9–11 quenched linoleic-acid-derived peroxyl radicals much more efficiently than α-tocopherol in a chlorobenzene/water two-phase system. N-Acetylcysteine or tris(2-carboxylethyl)phosphine as co-antioxidants in the aqueous phase could regenerate the tellurobistocopherols and increase their inhibition times. Antioxidant 11 inhibited peroxidation for 7-fold longer than that recorded with α-tocopherol. Thiol consumption in the aqueous phase was monitored and found to be inversely related to the inhibition time.
Ämnesord
- NATURVETENSKAP -- Kemi -- Organisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Organic Chemistry (hsv//eng)
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