The IUPAC name for the compound shown is _______ .
A)N-methylpropionamide
B)N-methylpropanamide
C)1-methylpropanamide
D)2-butanamide

Question

The IUPAC name for the compound shown is _______ . 
A)N-methylpropionamide 
B)N-methylpropanamide 
C)1-methylpropanamide 
D)2-butanamide

Quizplus · Accepted Answer

The longest carbon chain in the molecule is made up of three carbons, which identifies it as a propanamide. Additionally, there is a methyl group attached to the nitrogen atom, giving the compound the prefix N-methyl-. Therefore, the correct IUPAC name for this compound is N-methylpropanamide, which matches option B. Option A, N-methylpropionamide, would indicate a four-carbon chain, while options C and D, 1-methylpropanamide and 2-butanamide, respectively, do not correctly indicate the position of the methyl group on the nitrogen atom.

The IUPAC Name for the Compound Shown Is _______