title: Copper(I)-taniaphos catalyzed enantiodivergent hydroboration of bicyclic alkenes.
abstract: In this study, highly enantioselective copper(I)-catalyzed hydroboration of bicyclic alkenes is reported. Using a copper-taniaphos complex, excellent enantioselectivities up to >99% ee were obtained for bicyclic alkenes including oxa- and azabicyclic alkenes. Furthermore, copper-catalyzed enantiodivergent hydroboration methods with the same chiral ligand-copper precursors were developed using different boron sources based on alternative mechanistic pathways.
authors.affiliation: Department of Chemistry and Institute of Basic Science, Sungkyunkwan University , Suwon 440-746, Korea.
authors.forename: Hyesu
authors.initials: H
authors.lastname: Lee
authors.forename: Byoung Yoon
authors.initials: BY
authors.lastname: Lee
authors.forename: Jaesook
authors.initials: J
authors.lastname: Yun