Journal of Organometallic Chemistry p. 157 - 166 (1980)
Update date:2022-08-03
Topics:
Boyer, J.
Corriu, R. J. P.
Perz, R.
Reye, C.
The reactions of silyl enol ethers with carbonyl compounds are activated by heterogeneous catalysis.Caesium fluoride is the best catalyst.Unsaturated ketones are directly obtained by condensation reactions of silyl enol ethers with aldehydes and ketones. 1,4 Addition with α,β-unsaturated carbonyl compounds gives 1,5 dicarbonyl products.This method is very convenient and the compounds obtained can easily be separated.We assume that the role of the salt in these reactions is to activate the silicon atom by anionic coordination to form a pentacoordinated silicon intermediate.
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