Why is PhNO2 a suitable solvent for the Friedel-Crafts alkylation of PhBr while benzene is not?

Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM

Expert Answer:

Benzene is more reactive than bromobenzene in the Friedel-Crafts reaction and would alkylate more rapidly. Nitrobenzene may be used because it does not undergo the Friedel-Crafts reaction owing to the deactivating effect of the NO2 group (CS2 can also be used).

Answered by  | 4th Jun, 2014, 03:23: PM