Question

Which of the following compounds is an imide?

• A.
• B.
• C.
• D.

Answer 1

The correct option is A

Both amide and imide contain acyl groups attached to a nitrogen atom. The key difference between imide and amide is that imide is an organic compound composed of two acyl groups bonded to the same nitrogen atom whereas amide is an organic compound composed of an acyl group bonded to a nitrogen atom. thus compound (a) is imide.
Compound (b) has $>C=N-$ moiety and is imine.
Compounds (d) have amide functionality whereas compound (c) belongs to nitrile.