C6h6 + C2H5Cl (кат. alcl3) = c6h5-c2h5 (X1) + hcl,
C6h5-c2h5 + Cl2 (hv) = c6h5-ch(Cl)-ch3 (X2) + hcl,
C6h5-ch(Cl)-ch3 + KOH (C2h5oh) = c6h5-ch=ch2 (c8h8) + kcl + H2O,
C6h5-ch=ch2 + Br2 = c6h5-ch(br)-ch2-br (X3),
C6h5-ch(br)-ch2-br + 2koh (C2h5oh) = c6h5-c-=ch (X4) + 2kbr + 2h2o.
C6h6 + C2H5Cl (кат. alcl3) = c6h5-c2h5 (X1) + hcl,
C6h5-c2h5 + Cl2 (hv) = c6h5-ch(Cl)-ch3 (X2) + hcl,
C6h5-ch(Cl)-ch3 + KOH (C2h5oh) = c6h5-ch=ch2 (c8h8) + kcl + H2O,
C6h5-ch=ch2 + Br2 = c6h5-ch(br)-ch2-br (X3),
C6h5-ch(br)-ch2-br + 2koh (C2h5oh) = c6h5-c-=ch (X4) + 2kbr + 2h2o.