1) 2CH4 = C2H2 + 3H2
2) C2H2 + H2O = C2H4O
3) C2H4O+2Cu(OH)2 = CH3COOH+Cu2O+2H2O
4) CH3COOH + Сl2 = CH2Cl-COOH + HCl
5) CH2Cl-COOH + 2NH3 = NH2-CH2-COOH + NH4Cl
6) NH2-CH2-COOH+NH2-CH2-COOH+NH2-CH2-COOH = (-NH2-CH2-C=O-H-N-CH2-C=O-H-N-CH2-C=O-) + 3Н2О.