Organosilicon derivatives of 2-mercapto-substituted benzoxazoles,benzothiazoles and benzimidazoles |
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Authors: | M G Voronkov N F Chernov O M Trofimova T N Aksamentova |
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Institution: | (1) Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 ul. Favorskogo, 664033 Irkutsk, Russian Federation |
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Abstract: | The interactions of sodium salts of 2-mercaptobenzoxazole, 2-mercaptobenzothiazole and 2-mercaptobenzimidazole with (chloromethyl)trimethyl-, chloromethyl(dimethoxy)methylor (chloromethyl)trimethoxysilanes have been shown to result in the corresponding previously unknown (2-heterylthiomethyl)triorganylsilanes. Transetherification of (2-heteryl-thiomethyl)trimethoxysilanes with triethanolamine gives 1-(2-benzoxazolylthiomethyl)-, 1-(2-benzothiazolylthiomethyl)- and 1-(2-benzimidazolylthiomethyl)silatranes. The reaction of the corresponding alkoxysilanes with boron trifluoride etherate leads to (2-benzoxazolylthiomethyl)- and (2-benzothiazolylthiomethyl)-substituted trifluorosilanes and methyldifluorosilanes having a dragonoid chelate structure. By the hydrolysis of (2-heterylthiomethyl)trimethoxysilanes, new organosilicon sorbents, poly(2-heteryl-thiomethyl)silsesquioxanes have been synthesized.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 11, pp. 1965–1969, November, 1993. |
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Keywords: | 2-mercaptobenzoxazole 2-mercaptobenzothiazole 2-mercaptobenzimidazole alkoxysilane trifluorosilane silatrane silsesquioxane intramolecular coordination bond sorbents |
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