title: Rhodium-catalyzed asymmetric addition of potassium organotrifluoroborates to N-sulfonyl ketimines.
abstract: A rhodium-catalyzed asymmetric addition of readily available potassium organotrifluoroborates to both N-tosyl and N-nosyl ketimines has been developed. High enantioselectivity has been achieved by using a chiral diene ligand, and the nosyl group of the addition products can be easily removed while retaining the enantiomeric purity.
authors.affiliation: Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan. shintani@kuchem.kyoto-u.ac.jp
authors.forename: Ryo
authors.initials: R
authors.lastname: Shintani
authors.forename: Momotaro
authors.initials: M
authors.lastname: Takeda
authors.forename: Ying-Teck
authors.initials: YT
authors.lastname: Soh
authors.forename: Tomoaki
authors.initials: T
authors.lastname: Ito
authors.forename: Tamio
authors.initials: T
authors.lastname: Hayashi