2CH4 -gt; C2H2 + 3H2
C2H2 + H2O-gt; CH3-COH
CH3-COH + H2 -gt; C2H5OH 
C2H5OH + HBr -gt; C2H5Br + H2O
C2H5Br + KOH(сп. р-р) -gt; C2H4 + KBr+H2O
C2H4 + H2O -gt; C2H5OH 
C2H5OH -gt; CH3-COH +H2O 
2CH3-COH +O2 -gt;2CH3-COOH
CH3-COOH + C2H5OH -gt; CH3-COOC2H5 + H2O