Abstract
Abstract N-Metallo imines derived from benzaldehyde such as N-aluminium imine, N-boryl imine and N-silyl imine were asymmetrically alkylated with butyllithium in the presence of chiral ligands including (−)-sparteine and proline-derived amino alcohols to give optically active 1-phenylpentyl-1-amine in up to 74 % enantiomeric excess. Polymer-supported chiral ligands were also used for the asymmetric addition.
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