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Aromatic rings containing -NH_(2)-NHR or -NR_(2) groups do not undergo Friedel-Crafts reaction. Why? |
Answer» Solution :`-NH_(2), -NHR and -NR_(2)` groups are ELECTRON RELEASING groups, but these are CONVERTED into powerful electron-attracting groups as a result of Lewis ACID -Lewis base reaction with `AlCl_(3)`.
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