What is the IUPAC name for the following compound?
A) 5,5-dimethyl-2-heptanone
B) 5,5-dimethylcycloheptanone
C) 4,4-dimethylcycloheptanone
D) 3,3-dimethylcycloheptanone
E) 1,1-dimethyl-4-cycloheptanone

Question

What is the IUPAC name for the following compound? 
A) 5,5-dimethyl-2-heptanone 
B) 5,5-dimethylcycloheptanone 
C) 4,4-dimethylcycloheptanone 
D) 3,3-dimethylcycloheptanone 
E) 1,1-dimethyl-4-cycloheptanone

Quizplus · Accepted Answer

The compound has a cycloheptane ring with two methyl groups attached to the 4th carbon. Therefore, the correct IUPAC name is 4,4-dimethylcycloheptanone. Option A is incorrect as there are seven carbons in the ring, not two carbons in a chain. Option B and E are incorrect as the location of the methyl substituents is different from that in the given compound. Option D is incorrect as the methyl groups are attached to the 4th carbon, not the 3rd carbon.

What Is the IUPAC Name for the Following Compound