Цепочка превращений CH4 → CH3Br → C6H5CH3 → C6H5CH2Cl → C6H5CH2NH2
1) CH4 + Br2 = CH3Br + HBr 2) C6H6 + CH3Br --(AlBr3)--> C6H5CH3 + HBr 3) C6H5CH3 + Cl2 = C6H5CH2Cl 4) C6H5CH2Cl + NH3 > C6H5CH2NH2 + HCl