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Highly efficient and enantioselective hydrosilylation of aromatic alkenes catalyzed by the chiral rhodium acetate complexes with the bis(oxazolinyl)phenyl ligands has been reported that afforded chiral silane derivatives with up to 99% ee. [ABSTRACT FROM AUTHOR]

Transition-metal complexes with a chiral bis(oxazolinyl) phenyl (Phebox) ligand can construct suitable chiral environments around metal centers. Thus far, a number of transition-metal complexes in the range of early to late metals have been prepared via transmetalation, cyclometalation, and oxidative addition. The fundamental properties and catalytic activities of the resulting Phebox complexes have been extensively investigated. In particular, the Phebox-Rh and Phebox-Ru complexes were found to serve as efficient and selective catalysts in asymmetric reactions for carbon-carbon bond formation, reduction of unsaturated bonds, and functionalization reactions. In this Account, we summarize details of the Phebox complexes in terms of preparations, coordination chemistry, and catalytic applications. [ABSTRACT FROM AUTHOR]

Zinc acetate proved to be an efficient catalyst for hydro�silylation of ketones and aldehydes in the combination with (EtO)2MeSiH, and a good to excellent asymmetric induction was observed in the presence of chiral N2S2 ligands. [ABSTRACT FROM AUTHOR]

Simple proline-derived anilide-catalyzed asymmetric �intramolecular Michael reaction was described. Chiral cyclic keto-aldehydes were obtained from acyclic formyl enones in excellent yields with good stereoselectivity. The reaction proceeded in exceptionally fast with a commercially available proline anilide. On the other hand, the longer reaction time conduced toward the higher �diastereoselectivity through the favorable isomerization of the cyclic keto-aldehydes. [ABSTRACT FROM AUTHOR]