Question

An organic compound (A) of a molecular formula C₆H₆ is a simple aromatic hydrocarbon. A reacts with O₂ in the presence of VO₅ at 773 K to give B. A is further treated with sodium and liquid ammonia to give C which is a dienc compound. Identify A, B, and C and explain the reactions.

Answer 1

1. A is benzene (C₆H₆), a simple aromatic hydrocarbon 

2. Benzene (A) reacts with O₂ is the presence of V₂O₅ at 773K to give maleic anhydride (B).

3. Benzene (A) is treated with sodium and liquid ammonia to give 1.4 – cyclohexadiene (C)