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.