C3H6Cl2(1,3-дихлор-пропан) ----->CH2-CH2-CH2(циклопропан)------>C3H8---------------- Cr2O3 ---------------->X------>C6H14---------->X
Х1 - C3H7Cl (1-хлорпропан)?, Х2 - C6H6?
X1-c3H8,X2-c2h2
1)C3H6Cl2+Mg=C3H6+MgCl2 2)C3H6+H2=C3H8 3)C3H8+Cl2=C3H7Cl+HCl 4)2C3H7Cl+2Na=C6H14+2NaCl 5)С6H14=C6H6+4H2