title: Stereoselective preparation of spiro[4.4] cyclic compounds by the photochemical activation of oxazoles.
abstract: A novel photocyclization of 2-aryloxazole derivatives linked with an alkene moiety through a three-atom spacer at the 5-position gave a range of functionalized spiro[4.4] cyclic compounds that included cyclopentane, tetrahydrofuran, and pyrrolidine moieties in moderate to high yields with excellent diastereoselectivity.
authors.affiliation: Division of Chemical Process Engineering and Frontier Chemistry Center, Faculty of Engineering, Hokkaido University , Sapporo, Hokkaido 060-8628, Japan.
authors.forename: Noriyoshi
authors.initials: N
authors.lastname: Arai
authors.forename: Moe
authors.initials: M
authors.lastname: Mizota
authors.forename: Takeshi
authors.initials: T
authors.lastname: Ohkuma