UPSEE 2018 Solved Paper

Friedel crafts acylation followed by clemmensen reduction forms n -propyl benzene as follows:
Friedel craft alkylation method can also be used for conversion of benzene to n -propyl benzene. But the electrophile CH3−CH2−

O

∥ C

⊕

formed in F. C acylation method is more electrophilic in nature than the electrophile CH3(CH2

⊕

C

H2) formed in F. C alkylation method.
Hence, F.C acylation followed by clemmensen reduction is more preferrable.