Tandem isomerization/Claisen transformation of allyl homoallyl and diallyl ethers into gamma,delta-unsaturated aldehydes with a new three component catalyst Ru3(CO)12/imidazolinium salt/Cs2CO3.
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 gamma,delta-unsaturated aldehydes.
Institut de Chimie de Rennes, UMR 6509 CNRS-Université de Rennes, Organométalliques et Catalyse, Campus de Beaulieu, 35042 Rennes, France.
Jérôme
J
Le Nôtre
Luc
L
Brissieux
David
D
Sémeril
Christian
C
Bruneau
Pierre H
PH
Dixneuf