2 Amiline (CaH&NH;:) do not undergo Fridel-Crafts reaction because (a) -NH: grou

Question

2 Amiline (CaH&NH;:) do not undergo Fridel-Crafts reaction because (a) -NH: group of aniline is deactivating group. (b) -NHa group of aniline is activating group (b) -NH, group of aniline reacts with the Lewis acid catalyst and transforms into deactivating group (d) None of the above is correct answer 23 Installation of acetyl group on the nitrogen of aniline allows nitration of the benzene ring of aniline because (a) the acetyl group makes the benzene ring more reactive (h) the acetyl group protects the oxidation of-NH, group of aniline (c) the acetyl group lets the oxidaiton of -NHs group of aniline happen faster (d) None of the above is correct answer

Explanation / Answer

22) Aniline do not undergo Friedel-Craft's reaction because -NH2 group of aniline reacts with the Lewis acid catalyst and transforms into deactivating group.

23) option B is correct

Explanation: acetyl group on nitrogen atom decreases the reactivity of -NH2 group and protects it from oxidation.

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