Identify the IUPAC name of the given compound.
A) 2-methyl-3-amino-1-cyclopentanone
B) 1-amino-2-methyl-3-cyclopentanone
C) 3-amino-2-methyl-1-cyclopentanone
D) 2-amino-1-methyl-2-cyclopentanone

Question

Identify the IUPAC name of the given compound. 
A) 2-methyl-3-amino-1-cyclopentanone 
B) 1-amino-2-methyl-3-cyclopentanone 
C) 3-amino-2-methyl-1-cyclopentanone 
D) 2-amino-1-methyl-2-cyclopentanone

Quizplus · Accepted Answer

The longest carbon chain in the compound is a five-membered cyclopentane ring. The ketone group on this ring is located at carbon 1 and there is a methyl group attached to carbon 2. The amino group is also attached to carbon 3. Therefore, the correct IUPAC name is 3-amino-2-methyl-1-cyclopentanone.

Identify the IUPAC Name of the Given Compound