Immobilization and reuse of Pd complexes in ionic liquid: efficient catalytic asymmetric fluorination and Michael reactions with beta-ketoesters.
[reaction: see text] Palladium complexes (1 and 2) were immobilized in ionic liquids, and their applications to catalytic asymmetric fluorination and Michael reaction of beta-ketoesters were successfully demonstrated. This immobilization enabled the reuse of the catalysts no less than 10 times in fluorination and 5 times in Michael reaction with levels of efficiency comparable to those obtained in usual organic solvents.
Hamashima
Yoshitaka
Y
Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Katahira, Sendai, Miyagi 980-8577, Japan.
Takano
Hisashi
H
Hotta
Daido
D
Sodeoka
Mikiko
M