Silyation de derives carbonyles α,β-acetyleniques. Synthese d'allenoxysilanes
| Autor: | Paul Bourgeois, Norbert Duffaut, Jacques Dunogues, G. Merault |
|---|---|
| Rok vydání: | 1974 |
| Předmět: |
Trimethylsilyl
Magnesium Stereochemistry Organic Chemistry chemistry.chemical_element Keto–enol tautomerism Conjugated system Biochemistry Medicinal chemistry Carbonyl group Inorganic Chemistry Hexamethylphosphoric Triamide chemistry.chemical_compound Hydrolysis chemistry Materials Chemistry Physical and Theoretical Chemistry Group 2 organometallic chemistry |
| Zdroj: | Journal of Organometallic Chemistry. 76:17-27 |
| ISSN: | 0022-328X |
| DOI: | 10.1016/s0022-328x(00)90310-3 |
| Popis: | In the presence of magnesium and in hexamethylphosphoric triamide (HMPT), trimethylchlorosilane reacts with α,β-acetylenic ketones to give in most cases 1,4 addition of two trimethylsilyl groups to the conjugated system: allenoxysilanes, which constitute a new class of organometallic compounds, are formed. These upon hydrolysis give the corresponding silylated α,β-ethylenic ketones. Other reactions also take place: complete reduction of the carbonyl group giving polysilylated allenes; reductive duplication accompanied by O-silylation, and enolization. α,β-Acetylenic aldehydes give the same type of reactions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|