What is the IUPAC name of the compound shown below?

Question

Quizplus · Accepted Answer

The compound has two chiral centers, and according to the Cahn-Ingold-Prelog priority rules, the highest priority groups at each chiral center are the two chlorine atoms. The methyl group has a lower priority than both the chlorine atoms, so the molecule must be oriented so that the ethyl group is on the same side as the higher priority chlorine atoms. This gives us the (1R,3S) configuration. The name of the compound follows from this orientation and the names of the substituents: (1R,3S)-1,3-dichloro-1-ethyl-3-methylcyclopentane.

What Is the IUPAC Name of the Compound Shown Below