Write the Friedel-Crafts reaction of anisole.

(N/A) Mechanism: Friedel-Crafts reactions of anisole proceed via electrophilic aromatic substitution $(S_{E}Ar)$ mechanism.
$(a)$ Alkylation of Anisole:
$(i)$ Reagent: $CH_{3}Cl$ (chloromethane)
$(ii)$ Catalyst: Anhydrous aluminum chloride $(AlCl_{3})$ in $CS_{2}$ solvent.
$(iii)$ Reaction: The methyl (alkyl) group attaches to the ortho and para positions of the $-OCH_{3}$ group.
$(iv)$ Product: The major product is $4$-methoxytoluene and the minor product is $2$-methoxytoluene.
$(b)$ Friedel-Crafts $(F.C.)$ Acylation of Anisole:
$(i)$ Reaction: In the acylation of anisole,the acyl $(-COCH_{3})$ group is introduced into the benzene ring at the ortho and para positions of $-OCH_{3}$ via $S_{E}Ar$ substitution.
$(ii)$ Reagent: Ethanoyl chloride $(CH_{3}COCl)$ or other acyl halides $(RCOCl)$.
$(iii)$ Catalyst: Lewis acid,anhydrous aluminum chloride $(AlCl_{3})$.
$(iv)$ Product: The acyl group $(-COCH_{3})$ attaches to the ortho and para positions of $-OCH_{3}$,forming $4$-methoxyacetophenone as the major product and $2$-methoxyacetophenone as the minor product.