Chiral tetrafluorobenzobarrelenes as effective ligands for rhodium-catalyzed asymmetric 1,4-addition of arylboroxines to beta,beta-disubstituted alpha,beta-unsaturated ketones.
Shintani
Ryo
R
Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan. shintani@kuchem.kyoto-u.ac.jp
Takeda
Momotaro
M
Nishimura
Takahiro
T
Hayashi
Tamio
T