| Autor: |
Gorbunova, L. V., Mamysheva, O. N., Davydov, A. S., Kurskii, Yu. A. |
| Zdroj: |
Russian Chemical Bulletin; November 1980, Vol. 29 Issue: 11 p1838-1842, 5p |
| Abstrakt: |
1.When disubstituted Si-containing phenols are oxidized in an inert atmosphere, the main directions of the transformations of the phenoxyls formed in the reaction, which are characteristic for their alkyl analogs, are retained. An increase in the number of trimethylsilyl groups and the presence of a Me3Si group in the p-position of the aromatic ring enhances the tendency of the aroxyls formed in the oxidation to undergo C-O coupling with the formation of Si-containing phenylene oxides.2.Phenoxyls, obtained by the oxidation of 2,4-disubstituted Si-containing phenols in the presence of O2, exhibit the ability to undergo simultaneous coupling at the C-C and C-O bonds with the formation of Si-containing spiroketals. In the oxidation of 2,6-bistrimethylsilylphenol the equilibrium of the reaction is shifted toward the formation of the Si-containing diphenoquinone.3.Phenoxyls, obtained by the oxidation of disubstituted Si-containing phenols, retain the ability to dimerize with simultaneous migration of the Me3Si group from the o-position of the aromatic ring to the oxygen atom with the formation of tetrasubstituted disiloxydiphenyls. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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