Give the IUPAC name for the following structure.
A)3-chloro-6-methylcyclohexanol
B)2-methyl-5-chlorocyclohexanol
C)1-chloro-4-methylcyclohexanol
D)5-chloro-2-methylcyclohexanol
E)2-methyl-3-chlorocyclohexanol

Question

Give the IUPAC name for the following structure. 
A)3-chloro-6-methylcyclohexanol 
B)2-methyl-5-chlorocyclohexanol 
C)1-chloro-4-methylcyclohexanol 
D)5-chloro-2-methylcyclohexanol 
E)2-methyl-3-chlorocyclohexanol

Quizplus · Accepted Answer

The correct IUPAC name for the given structure is 5-chloro-2-methylcyclohexanol. This is because the longest carbon chain in the structure is the cyclohexane ring, which has a substituent on carbon 5 (a chlorine atom) and a methyl group on carbon 2. The -OH group is then indicated as a suffix (-ol) attached to carbon 1 of the ring. Overall, the name is in alphabetical order according to the substituents on the ring, i.e. "chloro" comes before "methyl" in the name. Therefore, option D is the best choice.

Give the IUPAC Name for the Following Structure