Помогите с преобразованием. CH4---C3H6--C3H4--C3H8O--CO2

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 + H2O2) 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)