Ethylenic acyl cyanides II: Conjugate addition of alkynylsilanes to ethylenic acyl cyanides.
β Scribed by Abdelkebir Jellal; Jean-Pierre Zahra; Maurice Santelli
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- French
- Weight
- 203 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0040-4039
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Summa&y : Condensation 06 methaeeyethimethylbiLaMen with a, B-ethyeenic acye cyaniden Leadn to S-methyl-5-hexenoye cyanideb which adtetr thehmaL CLjCI!iAUtiOM give
## Copper-catalyzed conjugate addition of organomanganese reagents to a, B ethylenic esters easily takes place in THF at O'C, in the presence of 3% CuCl and MejSiCI. Good to moderate yields are obtained from organomanganese reagents preparedfrom organolithium or organomagnesium compounok Recently,
Organomanganese chlorides react with p-mono or p,p-bisubstituted aðylenic aldehydes in the presence of a catalytic amount of copper chloride to give good yields of I ,4-addition products in THF at -30 "c.