Clay montmorillonite-catalysed Michael reactions of silyl ketene acetals and a silyl enol ether with α,β-unsaturated carbonyl compounds

Abstract

In the presence of the clay montmorillonite, silyl ketene acetals and a silyl ether react with α,β-unsaturated esters and ketones to afford the corresponding Michael adducts in the form of the silyl ketene acetals and silyl enol ethers in good yields.