Five types of reactions between (dimethylalumino)(trimethylsilyl)methylamine Me2AlNMeSiMe3 and carbonylcompounds (ketones, esters and amides) were found to occur, depending on the structure of the carbonylcompounds. Among others two new interesting compounds, 4-(dimethylamino)-4-(methylamino)-3-buten-2-one CH3COCHC(NHMe)NMe2 from acetamide and N, O-dimethylacylimidatetetramethyldialumoxane