Welcome to ChemZipper !!!: Nitrobenzene and not benzene, is used as a solvent for Fricdel Craft alkylation of bromobenzene. Why ?

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Nitrobenzene and not benzene, is used as a solvent for Fricdel Craft alkylation of bromobenzene. Why ?

Bromo substituted benzene is preferentially more reactive than Nitro substituted benzene hence it would preferentially undergo alkylation if il is used as a solvent.On the other hand, in nitrobenzene is so strongly deactivating that nitrobenzene does not undergo Friedel Craft reaction.

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