THE DIASTEREOSELECTIVE ADDITION OF TIN(II) ENOLATES DERIVED FROM CARBOXYLIC THIOESTERS TO α-IMINOESTER

Abstract
The diastereoselective addition of the Sn(II) enolates derived from carboxylic thioesters to α-iminoester is described. The Sn(II) enolates of t-butylthiol esters react smoothly with α-iminoester to afford the corresponding β-aminoacid derivatives in good yield with high diastereoselectivity.