- The synthesis of thiobisphenols from 3-alkylphenols derived from natural phenolic lipids
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3-Alkylphenols derived from renewable natural resources have been used to synthesise thiobisphenols by reaction with sulfur dichloride. In contrast to previous work, we have found that 3-alkylphenols give isomeric products, the major symmetrical, the 4,4′-thiobis compound, the minor symmetrical, 2,2′-thiobisphenol, and some of the believed unsymmetrical isomer. The role of the solvent and catalyst have been studied in the reaction of 3-pentadecylphenol with sulfur dichloride. Evidence for the structures of the 2,2′ and 4,4′ isomers has been obtained from related reactions of 4-bromo-3-methylphenol, 2-bromo-5-methylphenol and their chloro analogues.
- Tyman, John H. P.,Johnson, Robert A.
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p. 116 - 118
(2007/10/03)
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- Lubricant stabilizers
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Phenol sulfides, disulfides, polysulfides and oligomers thereof when reacted with alkyl vinyl ethers provide addition products substantially comprised of novel acetal derivatives which are effective oxidation inhibitors when incorporated into organic media normally susceptible to oxidative degradation.
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