Tandem isomerization/Claisen transformation of allyl homoallyl and diallyl ethers into γ,δ-unsaturated aldehydes with a new three component catalyst Ru3(CO)12/imidazolinium salt/Cs2CO3

Abstract
The three component catalyst Ru3(CO)12/1,3-bis(2,6-diisopropylphenyl)imidazolinium chloride/Cs2CO3 (molar ratio 1∶3∶6) successively promotes both allyl to vinyl isomerization and Claisen rearrangement from allyl homoallyl and diallyl ethers to selectively afford γ,δ-unsaturated aldehydes.