The title phenoxide has been prepared from phenyl trimethylsilyl ether and tris-(diethylamino)sulfonium difluorotrimethylsiliconate. The conductivity measurement and NMR analysis indicate that this phenoxide dissociates into the ions in THF solution. Phenoxide and enolates are an important class of
Alkylation via tris(dialkylamino)sulfonium enolates
โ Scribed by R. Noyori; I. Nishida; J. Sakata
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- French
- Weight
- 209 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0040-4039
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โฆ Synopsis
Tris(dialkylamino)sulfonium enolates generated from tris(diethylamino)sulfonium difluorotrimethylsiliconate and enol silyl ethers are readily alkylated by various alkyl halides under mild conditions. Recently we have demonstrated that reaction of tris(diethylamino)sulfonium (TAS) difluorotrimethylsiliconate (I) and an enol silyl ether II in TRF produces the TAS enolate, III, in
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The crystal structures of two pentavalent silicon anions are discussed. The structure of [SiMe,F,]-1 shows a trigonal bipyramidal structure with the fluorines in apical positions. The Si-F bond distances are the longest known of this type. The crystal structure of fluorosilicate ) is distorted towa