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C2H4 - C3H8 - C3H7C l- C6H14 - C6H13Cl - C7H16 - H2O

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CH2=CH2 + CH4 (H2SO4) = CH3-CH2-CH3
C3H8 + Cl2 = CH3-CH(Cl)-CH3 + HCl
2CH3-CH(Cl)-CH3 + 2Na = 2NaCl + (CH3)2CH-CH(CH3)2
(CH3)2CH-CH(CH3)2 + Cl2 = (CH3)2CH-CCl(CH3)2 + HCl
(CH3)2CH-CCl(CH3)2 + CH3Cl + 2Na = (CH3)2CH-C(CH3)3 + 2NaCl
C7H16 + O2 = CO2 + H2O