Oxidative Conversion of Silyl Enol Ethers to α,β-Unsaturated Ketones Employing Oxoammonium Salts

The oxidative conversion of silyl enol ethers to α,β-unsaturated ketones using a less-hindered class of oxoammonium salts (AZADO⁺BF₄^–) is described. The reaction proceeds via the ene-like addition of oxoammonium salts to silyl enol ethers.