Write equations of the following reactions:
$(i)$ Friedel-Crafts reaction - alkylation of anisole.
$(ii)$ Nitration of anisole.
$(iii)$ Bromination of anisole in ethanoic acid medium.
$(iv)$ Friedel-Craft's acetylation of anisole.
$(i)$ Friedel-Crafts reaction - alkylation of anisole.
$(ii)$ Nitration of anisole.
$(iii)$ Bromination of anisole in ethanoic acid medium.
$(iv)$ Friedel-Craft's acetylation of anisole.
(N/A) $(i)$ Friedel-Crafts alkylation: $C_6H_5OCH_3 + CH_3Cl \xrightarrow{Anhyd. AlCl_3, CS_2} C_6H_4(OCH_3)(CH_3) \text{ (ortho and para isomers)}$.
$(ii)$ Nitration: $C_6H_5OCH_3 + HNO_3 \xrightarrow{H_2SO_4} C_6H_4(OCH_3)(NO_2) \text{ (ortho and para isomers)}$.
$(iii)$ Bromination: $C_6H_5OCH_3 + Br_2 \xrightarrow{CH_3COOH} C_6H_4(OCH_3)(Br) \text{ (ortho and para isomers)}$.
$(iv)$ Friedel-Crafts acetylation: $C_6H_5OCH_3 + CH_3COCl \xrightarrow{Anhyd. AlCl_3} C_6H_4(OCH_3)(COCH_3) \text{ (ortho and para isomers)}$.
$(ii)$ Nitration: $C_6H_5OCH_3 + HNO_3 \xrightarrow{H_2SO_4} C_6H_4(OCH_3)(NO_2) \text{ (ortho and para isomers)}$.
$(iii)$ Bromination: $C_6H_5OCH_3 + Br_2 \xrightarrow{CH_3COOH} C_6H_4(OCH_3)(Br) \text{ (ortho and para isomers)}$.
$(iv)$ Friedel-Crafts acetylation: $C_6H_5OCH_3 + CH_3COCl \xrightarrow{Anhyd. AlCl_3} C_6H_4(OCH_3)(COCH_3) \text{ (ortho and para isomers)}$.
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