Synthesis of homoallyl ethers via allylation of acetals and aldehydes in ionic liquids

The TMS triflate catalyzed allylation of acetals to yield homoallyl ethers proceeds smoodily at room temperature in ionic liquids. A one-pot method for the conversion of aldehydes to homoallyl ethers in an ionic liquid has also been developed. This methodology is attractive because it allows allylations to be carried out at room temperature. Ionic liquids offer a convenient replacement for CH₂Cl₂, the commonly used solvent for such reactions.