title: Design of a robust Ru(salen) complex: aziridination with improved turnover number using N-arylsulfonyl azides as precursors.
abstract: A new robust fluorinated (OC)Ru(salen) complex was designed on the basis of an X-ray structure of its parent complex to show improved turnover numbers (up to 878) and enantioselectivities (up to 99%) in aziridination reactions using p-toluenesulfonyl (Ts) or p-nitrobenzenesulfonyl (Ns) azide as the nitrene precursor; the latter is synthetically advantageous since the Ns group is N-protecting and can be removed under mild conditions.
authors.affiliation: Department of Chemistry, Faculty of Science, Graduate School, Kyushu University 33, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan.
authors.forename: Kazufumi
authors.initials: K
authors.lastname: Omura
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Uchida
authors.forename: Ryo
authors.initials: R
authors.lastname: Irie
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Katsuki