CLCH2-CH2CL->CH2->С6Н6->C6H5CH2-CH3->C6H5COOH->C6H4BrCOOH

Question

CLCH2-CH2CL->CH2->С6Н6->C6H5CH2-CH3->C6H5COOH->C6H4BrCOOH

Answer 1

1)ClCH2-CH2Cl+2KOH=C2H2+2KCl+2H2O

2)3C2H2=C6H6

3)C6H6+Cl2=C6H5Cl+HCl

C6H5Cl+2Na+Cl-CH2-CH3=C6H5-CH2-CH3+2NaCl

C6H5-CH2-CH3+KMnO4+H2SO4=C6H5-COOH+K2SO4+MnSO4+H2O

C6H5-COOH+Br2=C6H4Br-COOH+HBr