1) CH4 + Cl2 -> CH3Cl + HCl
CH3Cl + Na -> C2H6 + NaCl
C2H6 + Cl2 -> C2H5Cl + HCl
C2H5Cl + CH3Cl + Na -> C3H8 + C2H6 + C4H10 + NACl
C3H8 + Cl2 -> CH3-CHCl-CH3 + HCl
CH3-CHCl-CH3 + KOH -> CH2=CH-CH3 (C3H6) + KCl + H2O
2) CH2=CH-CH3 + HCl -> CH3-CHCl-CH3
CH3-CHBr-CH3 + Cl2 -> CH2Cl-CHCl-CH3 + CH3-CCl2-CH3
CH2Cl-CHCl-CH3 + 2KOH -> C3H4 + 2KCl2 + 2H2O
и так далее)