Reactions of salicylaldehyde with tris(pentaf luorophenyl)silanes and secondary amines |
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Authors: | A. D. Dilman D. E. Arkhipov P. A. Belyakov M. I. Struchkova V. A. Tartakovsky |
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Affiliation: | (1) N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation |
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Abstract: | Reactions of tris(pentafluorophenyl)silanes RSi(C6F5)3 with salicylaldehyde and secondary amines were studied. The reactions afforded α-pentafluorophenyl-substituted amines. Silanes RSi(C6F5)3 (R = Me, Ph, C6F5, CH2CH=CH2, and CH=CH2) were found to be efficient reagents for transfer of the C6F5 group to the iminium cation generated from salicylaldehyde and amine. However, tris(pentafluorophenyl)phenylethynyl-and tris(pentafluorophenyl)silanes were not able to serve as a source of a fluorinated substituent because of competitive transfer of acetylenide fragment or hydride. Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 3, pp. 498–503, March, 2006. |
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Keywords: | pentafluorophenylsilanes salicylaldehyde iminium cation pentacoordinated silicon organofluorine compounds amines organosilicon compounds |
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