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Mechanisms of antioxidant action: Auto-synergistic behaviour of sulphur-containing phenols

โœ Scribed by V.M. Farzaliev; W.S.E. Fernando; G. Scott

Publisher
Elsevier Science
Year
1978
Tongue
English
Weight
270 KB
Volume
14
Category
Article
ISSN
0014-3057

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โœฆ Synopsis

The powerful antioxidant activity of 3.5-di-tert-butyl-4-hydroxybenzyl sulphides has been shown to be due to the generation of a Lewis acid catalyst which may oestroy >3 ร— 10 5 moles of hydroperoxide per mole of sulphur compound. The same catalytic species formed from a variety of benzylic sulphides and is believed to be an inorganic sulphur acid (probably SO3). Dibenzyl monosulphide itself is not initially an antioxidant and one function of the hindered phenolic group in thc auto-synergists is believed to be the removal of free radicals formed during the early stages of the reaction.

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