What is the IUPAC name of the following compound?
R)-2,2-dimethyl-3-pentanol
S)-2,2-dimethyl-3-pentanol
C)1-tert-butyl-1-propanol
S)-4,4-dimethyl-3-pentanol

Question

What is the IUPAC name of the following compound? 
R)-2,2-dimethyl-3-pentanol 
S)-2,2-dimethyl-3-pentanol 
C)1-tert-butyl-1-propanol 
S)-4,4-dimethyl-3-pentanol

Quizplus · Accepted Answer

The compound has a chiral center at the second carbon, with a methyl group and a butyl group attached. The priority of the groups is determined by the atomic number of the atoms directly attached to the chiral center. The methyl group has a higher priority than the butyl group since it is attached to a carbon with a higher atomic number than the carbon attached to the butyl group. If we rotate the molecule so that the lowest priority group (hydrogen) is pointing away from us, the direction of the remaining groups (methyl, butyl, and hydroxyl) determines the stereochemistry. In this case, the methyl and butyl groups are both pointing away from us, and the hydroxyl group is pointing towards us, giving us an S configuration. Therefore, the IUPAC name is (S)-2,2-dimethyl-3-pentanol.

What Is the IUPAC Name of the Following Compound