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Vystorop, I.V., Konovalova, N.P., Neljubina, J.V., Varfolomeev, V.N., Fedorov, B.S., . Sashenkova, T.E., Berseneva, E.N., Lysenko, K.A. and Kostjanovsky, R.G. (2010) Cycle Hydroxamoving Acids from α-Aminoacids. Herald of Russian Academy of Sciences, Series Chemistry, 127-134. [In Russian]

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• TITLE: Effect of Temperature on the Reaction of 2-(N-acetylamine)-3-(3,5-di-tert-butyl-4-hydroxyphenyl)-propionic Acid with Oxygen in an Alkaline Condition

  AUTHORS: A. A. Volodkin, G. E. Zaikov, L. N. Kurkovskaja, S. M. Lomakin, I. M. Levina, E. V. Koverzanova

  KEYWORDS: 2-(N-acetylamine)-3-(3, 5-di-tert-butyl-4-hydroxyphenyl)-propionic Acid, 6, 8-di-tert-butyl-3-(N-acetylamine)spiro(4, 5)deca-1-oxa-5, 8-dien-2, 7-dione Oxidation by Oxygen, 2, 4-Di-tert-butylbicyclo(4, 3, 1)deca-4, 6-dien-8-(N-acetylamine)-3, 9-dion-1-oxa, NMR-Spectroscopy

  JOURNAL NAME: Advances in Chemical Engineering and Science, Vol.5 No.3, June 30, 2015

  ABSTRACT: Results of oxidation 2-(N-acetylamine)-3-(3,5-di-tert-butyl-4-hydroxyphenyl)-propionic acid oxygen depend on temperature. At 55℃- 60℃, 2,4-di-tert-butylbicyclo(4,3,1)deca-4,6-dien-8-(N-acetylamine)-3,9-dion-1-oxa is formed. The constitution is based on dates of spectrums 1Н and 13С NMR. At 95℃- 97℃, mixtures of 2,4-di-tert-butylbicyclo(4,3,1)deca-4,6-dien-8-(N-acetylamine)-3,9-dion-1-oxa and of 6,8-di-tert-butyl-3-(N-acetylamine)spiro(4,5)deca-1-oxa-5,8-dien-2,7-dione are produced. Structures are calculated by the method of Hartrii-Foka. Values of enthalpies and of entropies allow to assume dynamic isomerism.