<i>syn</i>-Selective Direct Catalytic Asymmetric Mannich-Type Reactions of Hydroxyketones Using Y{N(SiMe<sub>3</sub>)<sub>2</sub>}<sub>3</sub>/Linked-BINOL Complexes
[reaction, structure: see text] Chiral YN(SiMe3)2}3/linked-BINOL catalyst generated Y-enolate in situ from various hydroxyketones (R2 = aryl, heteroaryl). Beta-amino-alpha-hydroxy ketones (R1 = aryl, heteroaryl, alkenyl) were obtained syn-selectively (up to 96/4) in high ee (up to 98%) and good yield (up to 98% yield).