Question

A simplest aromatic hydrocarbon (A) of formula C₆ H₆ reacts with Bromine to gives (B) of molecular formula C₆H₅Br. (B) on treatment with magnesium metal in the presence of dry ether gives (C) . (C) on reaction with formaldehyde followed by acid hydrolysis gives (D) of formula C₇H₈O. Identify A,B,C,D and explain the reaction involved.

Answer 1

1. From the molecular formula (A) is identified as Benzene C6H6, Benzene reacts with Bromine to give bromobenzene as (B)

2. Bromobenzene reacts with Mg in the presence of dry ether gives phenyÍ magnesium bromide (Grignard reagent) as compound (C)

3. Phenyl magnesium bromide react with formaldehyde followed by acid hydrolysis gives Benzyl alcohol as product (D)