question_answer

In a reaction of aniline a coloured product C was obtained.                  [AIPMT (S) 2008]

The structure of C would be

A)

B)

C)

D)

Correct Answer: D

Solution :

[d] Key Idea: 1° amines form diazonium salts at low temperature and diazonium salts are weak electrophiles, so react with strongly activated ring. (takes H from benzene nucleus).

Note: The —N==N— linkage is called -azo linkage, and -the reactions in which azo or diazo compounds are formed, are called diazo coupling reactions.