I am looking for info on chlorination of benzene to mono-chlorobenzene and dichlorobenze

Question

I am looking for info on chlorination of benzene to mono-chlorobenzene and dichlorobenze

Answer 1

C6H6 + Cl2  ----(FeCl3)--------> C6H5Cl + HCl

FeCl3 it is used as catalizator, for making the electrophile particle Cl^+

FeCl3 + Cl2 -----------> FeCl4^- + Cl^+

C6H6 + Cl^+ -----------> C6H5Cl + H^+

FeCl4^- + H^+ -----------> FeCl3 + HCl

after forming C6H5Cl  the reaction for obtaining C6C4Cl2 goes easier also with FeCl3 under same mechanizm except that are possible two kind of products orto and para ( 1,2 and 1,4 dichloro benzene) because Cl is a group thaat direct substitution in orto-para position.

remark: AlCl3 also could be used as a catalizartor instead FeCl3