Question

A Compound (A) with molecular formula C₂H₃N on acid hydrolysis gives(B) which reacts with thionyichioride to give compound(C). Benzene reacts with compound (C) in presence of anhydrous AlCl₃ to give compound (C). Compound (C) on reduction with gives (D). Identify (A), (B), (C) and D. Write the equations.

Answer 1

1. Compound (A) with molecular formula C₂H₃N is methyl cyanide. (CH₃CN)

2. Methyl cyanide (A) on hydrolysis gives acetic acid (B)

3. Acetic acid (B) with thionyl chloride to give acetyl chloride (C)

4. Benzene reacts with acetyl chloride (C) in the presence of anhydrous AlCl₃ to give acetophenone (D)

5. Acetyl chloride (C) on reduced in the presence of Pd / H₅ and Barium sulphate, to gives acetaldehyde (E).