Ca +2 C =(t) CaC2
CaC2 + H2O = Ca(OH)2 + C2H2
C2H2 + 2H2 = C2H6
Реакція Вюрца
С2Н6+Сl2=C2H5Cl+HCl
C2H5Cl+C2H5Cl +2Na=C4H10 +2NaCl
C4H10 + [O] = 2 CH3COOH + H2O
CH3COOH + C2H5OH = CH3COO-C2H5 + H2O
CH3COO-C2H5 + KOH= CH3COOK (мыло) + C2H5OH
или CH3COOH + KOH = CH3COOK (мыло) + H2O