1) CH3-CH3 -> CH2=CH2 (t,kat)
2) CH2=CH2 + H2O -> CH3-CH2-OH (kat)
3) CH3-CH2-OH + CuO -> CH3COH + Cu + H2O
4) CH3COH + Ag2O -> CH3COOH + 2Ag (NH3)
5) CH3COOH + Cl2 -> Cl-CH2-COOH + HCl (t)
6) Cl-CH2-COOH + NH3 -> NH2-CH2-COOH
nNH2-CH2-COOH +n NH2-CH2-COOH -> R-CH(NH2)-(-C(O)-NH-CH(R-))n -COOH n>10