Addition of Silylated Carbon Nucleophiles to Iminium and Cyclic N-Acyliminium Ions Promoted by InCl3.

Abstract InCl 3 was used as Lewis acid in the addition of silyl enolates and allyltrimethylsilane to aromatic aldimines and cyclic N -acyliminium ions derived from 5-acetoxylactams affording β-aminocarbonyl systems and allyl adducts, respectively, in reasonable to good yields. The diastereofacial selectivity of cyclic N -acyliminium ions was investigated.