title: Asymmetric Mukaiyama-Michael addition of acyclic enones catalyzed by allo-threonine-derived B-aryloxazaborolidinones.
abstract: [reaction: see text] O-(2-Naphthoyl)-N-tosyl-L-allo-threonine-derived B-phenyloxazaborolidinone catalyzes the asymmetric Mukaiyama-Michael addition of simple acyclic enones to give adducts of 54-85% ee. 2,6-Diisopropylphenol as an additive is demonstrated to effectively retard the undesirable Si(+)-catalyzed racemic pathway.
authors: Department of Chemistry, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan. harada@chem.kit.ac.jp
authors: T
authors: T
authors: Harada
authors: H
authors: H
authors: Iwai
authors: H
authors: H
authors: Takatsuki
authors: K
authors: K
authors: Fujita
authors: M
authors: M
authors: Kubo
authors: A
authors: A
authors: Oku