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 ACES  Vol.5 No.3 , July 2015
Spontaneous Changes of Solid 5,7-di-tert-butylspiro(2,5)octa-4,7-diene-6-one in Storage Conditions at Room Temperature
Abstract: On an example of spontaneous changes 5,7-di-tert-butylspiro (2,5) octa-4,7-diene-6-one at room temperature, a new example of condensations in a solid station is opened. The single crystal of 2-(3’, 5'-di-tert-butyl-4'-hydroxy-phenyl)-ethyloxy-p-cresole is produced as result of a structure transformation 5,7-di-tert-butylspiro (2,5) octa-4,7-diene-6-one in a solid phase at room temperature except a single crystal at transformation 5,7-di-tert-butylspiro (2,5) octa-4,7-diene-6-one a new substance is formed too. Spectrums 1Н and 13С NMR differ from similar spectrums of initial compound and the single crystal. New substance represents an admixture of isomeric compounds, capable reversible to be transformed in initial 5,7-di-tert-butylspiro(2,5) octa-4,7-diene-6-one and 2-(3’, 5'-di-tert-butyl-4'-hydroxyphenyl)-ethyloxy-p-cresole.
Cite this paper: Volodkin, A. , Zaikov, G. , Kurkovskaja, L. , Lomakin, S. , Levina, I. and Koverzanova, E. (2015) Spontaneous Changes of Solid 5,7-di-tert-butylspiro(2,5)octa-4,7-diene-6-one in Storage Conditions at Room Temperature. Advances in Chemical Engineering and Science, 5, 299-304. doi: 10.4236/aces.2015.53030.
References

[1]   Shchegolikhin, A.N. (2011) Dynamics Research Solid State in Organic Crystals. Thesis PhD, Institute of Biochemical Physics of N.M.Emanuelja of Russian Academy of Sciences, Moscow, 142.

[2]   Ershov, V.V. and Belostotskaja, I.S. (1965) Di-Tert-Butylspirocyclodienones. Herald of Russian Academy of Sciences, Series chemistry, 1301. [In Russian]

[3]   Chamot, D. and Pirkle, W. (1969) Direct Nuclear Magnetic Resonance Observation of Stereochemically Distinctions. Journal of the American Chemical Society, 91, 1569-1571.
http://dx.doi.org/10.1021/ja01034a070

 
 
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