Question

Identify the end product 'Y' in the given reaction sequence:

• A.

  

• B.

  

• C.

  

• D.

  

Hint:

Hofmann bromamide reaction converts primary amides to amines with one carbon less. In this case, each carboxylic group is converted to –NH$_2$.

Answer 1

The Correct Option is B

The reaction sequence involves conversion of terephthalic acid to the corresponding diamide using ammonia and heat. This is followed by the Hofmann bromamide reaction using Br$_2$/NaOH, which converts the diamide to the corresponding diamine — benzene-1,4-diamine (para-phenylenediamine).