Spontaneous Changes of Solid 5,7-di-<i>tert</i>-butylspiro(2,5)octa-4,7-diene-6-one in Storage Conditions at Room Temperature
- 1 Federal State Budgetary Establishment of a Science of Institute of Biochemical Physics of N. M. Emanuelja of Russian Academy of Sciences, Moscow, Russia
- 2 Federal State Budgetary Establishment of a Science of Institute of Biochemical Physics of N. M. Emanuelja of Russian Academy of Sciences, Moscow, Russia
- 3 Federal State Budgetary Establishment of a Science of Institute of Biochemical Physics of N. M. Emanuelja of Russian Academy of Sciences, Moscow, Russia
- 4 Federal State Budgetary Establishment of a Science of Institute of Biochemical Physics of N. M. Emanuelja of Russian Academy of Sciences, Moscow, Russia
- 5 Federal State Budgetary Establishment of a Science of Institute of Biochemical Physics of N. M. Emanuelja of Russian Academy of Sciences, Moscow, Russia
- 6 Federal State Budgetary Establishment of a Science of Institute of Chemical Physics of N. N. Semenov of Russian Academy of Sciences, Moscow, Russia
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 1 Н and 13 С 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.
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