we know that aryl halides can be easily prepared by electrophilic substitution of toluene by chlorine and bromine - Chemistry - Haloalkanes and Haloarenes

Question

we know that aryl halides can be easily prepared by
electrophilic substitution of toluene by chlorine and bromine why
dont we use Alcl3 as a lewis acid catalyst instead of fecl3 explain
in details also give the reaction with that of iodine do we have to
remember these mechanisms

Akanksha · Accepted Answer

Kindly refer to the following links:
https://www meritnation
com/ask-answer/question/why-is-anhydrous-alcl3-used-as-catalyst-in-several-organic-r/chemistry/6930630
https://www meritnation
com/ask-answer/question/what-is-fridal-craft-alkylation-and-acylation/alcohols-phenols-and-ethers/3554081

we know that aryl halides can be easily prepared by electrophilic substitution of toluene by chlorine and bromine . why dont we use Alcl3 as a lewis acid catalyst instead of fecl3 .explain in details. also give the reaction with that of iodine . do we have to remember these mechanisms