Conclusions
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1.
The oxidation of 4-R-2,6-di-tert-butylphenoIs and the nature of the products depend on the nature of the functional group in the R substituent and the number of methylene units between the aromatic ring and the functional group.
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2.
The oxidation of esters of 4-hydroxy-3,5-di-tert-butylphenylpropionic acid proceeds with oxidative cyclization and the formation of 6,8-di-tert-butylspiro(4,5)deca-1-oxa-5,8-diene-2,7-dione.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 7, pp. 1594–1597, July, 1982.
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Volod'kin, A.A., Malysheva, R.D. & Ershov, V.V. Oxidation of 4-substituted 2,6-di-tert-butylphenols by oxygen in alkaline medium. Russ Chem Bull 31, 1417–1420 (1982). https://doi.org/10.1007/BF00954163
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DOI: https://doi.org/10.1007/BF00954163