title: Remarkable effect of tris(4-fluorophenyl)phosphine oxide on the stabilization of chiral lanthanum complex catalysts. A new and practical protocol for the highly enantioselective epoxidation of conjugated enones.
abstract: A new and efficient chiral catalyst system, lanthanum-chiral BINOL-tris(4-fluorophenyl)phosphine oxide-cumene hydroperoxide, was developed for the epoxidation of alpha, beta-unsaturated ketones thus providing the corresponding epoxy ketones with excellent enantioselectivities (up to >99% ee) in good to excellent yields at room temperature.
authors.affiliation: Institute for Materials Chemistry and Engineering, Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan.
authors.forename: Rie
authors.initials: R
authors.lastname: Kino
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Daikai
authors.forename: Toshio
authors.initials: T
authors.lastname: Kawanami
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Furuno
authors.forename: Junji
authors.initials: J
authors.lastname: Inanaga