Match the following reactants in Column I with the corresponding reaction products in Column II.
Column I | Column II |
(i) Benzene + |
(a) Benzoic acid |
(ii) Benzene + |
(b) Methyl phenyl ketone |
(iii) Benzene + |
(c) Toluene |
(iv) Toluene |
(d) Chlorobenzene |
(e) Benzene hexachloride |
Explanation:
Friedel-Crafts alkylation is a reaction that replaces a hydrogen atom on an aromatic ring with an alkyl group. It's a type of electrophilic aromatic substitution that uses a Lewis acid catalyst, like aluminum chloride (AlCl3) or iron trichloride (FeCl3), to form a carbocation. The carbocation then attacks the aromatic ring, breaking a double bond and forming an intermediate. The intermediate is deprotonated, which restores aromaticity to the ring and forms an acid that regenerates the Lewis acid catalyst.