Abstract Aliphatic saturated amides treated with Me 3 SiCl/Li/THF were found to react in two ways. Either alkoxysilanes, mono-or di-silylated at the functional carbon, or C-silylated amines were obtained dependent of the original amide structure and the experimental conditions.(Me 3 Si) 2 CHN (SiMe 3) 2 exhibited Physicochemical properties that are particular for hindered rotation about the C N bond. A general mechanism is proposed to ...