CH3-CHCl-CH2-CH2-CH3 + NaOH -> CH3-CH=CH-CH2-CH3 + NaCl + H2O ( в спирте)
CH3-CHBr-CHBr-CH2-CH3 + Zn -> CH3-CH=CH-CH2-CH3 + ZnBr2
CH3-CHCl-CH2-CH2-CH3 + NaOH -> CH3-CH=CH-CH2-CH3 + NaCl + H2O ( в спирте)
CH3-CHBr-CHBr-CH2-CH3 + Zn -> CH3-CH=CH-CH2-CH3 + ZnBr2