Question

How benzene is converted into n - propyl benzene

• A. Friedel - crafts Alkylation
• B. Friedel - crafts Acylation
• C. Friedel - crafts Alkylation followed by clemmensen reduction
• D. Friedal - crafts Acylation followed by clemmensen reduction

Answer 1

Answer: (D)

Friedal - crafts Acylation followed by clemmensen reduction

Answer 2

Friedel crafts acylation followed by

clemmensen reduction forms $n$-propyl benzene as follows :

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Friedel craft alkylation method can also be used for conversion of benzene to n-propyl benzene. But the electrophile

formed in $F. C$ acylation method is more electrophilic in nature

than the electrophile $(CH_3CH_2\, \overset{?}{C}H_2)$ formed in $F. C$ alkylation method.

Hence, $F.C$ acylation followed by clemmensen reduction is more preferrable.