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

• 作者: Alexandre A. Volodkin Elena V. Koverzanova Gennady E. Zaikov Irina M. Levina Lydia N. Kurkovskaja Sergey M. Lomakin
• 来源期刊: 化学工程与科学期刊(英文)
• 学科: 化学
• 关键词: Solid-Phase Reactions 5 7-Di-tert-butylspiro(2 5)octa-4 7-diene-6-one 2-(3’ 5'-di-tert-butyl-4'-hydroxyphenyl)-ethyloxy-p-cresole NMR and IR Spectroscopy
• 年，卷（期）: 2015,（3）
• 页码范围: 299-304
• 页数: 6页
• 分类号: O6

摘要

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.