amine group present in aniline undergoes lewis acid base reaction with catalyst aluminium chloride.so there is no more aluminium chloride left for reaction to take place . however if aluminium chloride is taken in excess , some meta isomer is produced.
Sarthak Chaturvedi
Last Activity: 13 Years ago
This is because in presence of AlCl3, reaction occurs between NH2 group of aniline & AlCl3.
NARENDER
Last Activity: 8 Years ago
Because of NH2 has Lewis Base character then aniline reacts with Lewis acid AlCl3 and inhibit the synthesis of electrophile Which is necessary to attack on benzene ring
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