1) H3C-C(O)-CH2-CH3 + 2[H] = H3C-CH(OH)-CH2-CH3 (А);
2) H3C-CH(OH)-CH2-CH3 + SOCl2 = H3C-CH(Cl)-CH2-CH3 (Б) + SO2 + HCl;
3) H3C-CH(Cl)-CH2-CH3 + Mg ((C2H5)2O) = H3C-CH(MgCl)-CH2-CH3 (В);
4) H3C-CH(MgCl)-CH2-CH3 + CO2 ((C2H5)2O) = H3C-CH2-CH(CH3)-C(O)-OMgCl (Г);
5) H3C-CH2-CH(CH3)-C(O)-OMgCl + HCl (H2O) = H3C-CH2-CH(CH3)-COOH (Д) + MgCl2;
6) H3C-CH2-CH(CH3)-COOH + NH3 = H3C-CH2-CH(CH3)-COONH4 (Е);
7) H3C-CH2-CH(CH3)-COONH4 (+T) = H3C-CH2-CH(CH3)-C(O)NH2 (Ж) + H2O.