Q 12.14 How will you prepare the following compounds from benzene You may use any inorganic reagent and any organic reagent having not more than one carbon atom
(iv) Phenyl acetic acid
Alkylation of benzene in presence of anhydrous gives toluene, which on further reaction with gives benzyl bromide and after that reacts with alc. KCN, CN replace the Br and formed benzyle cyanide which on acidic hydrolysis gives phenyl acetic acid.