Nomenclature Of Organic Compounds

To determine the IUPAC name of the compound:

we follow these steps:

1. Identify the longest continuous carbon chain. Here, it is comprised of five carbon atoms, forming a "pentane" chain.
2. Number the carbon atoms in the chain such that substituents receive the lowest possible numbers. Starting from the end closest to the substituent, we number the chain:
   .
3. Identify and name the substituents. There is one methyl group attached to carbon 3.
4. Combine the substituent name with the base name of the carbon chain:
   The substituent "methyl" is on carbon 3, and the chain is a pentane, resulting in the IUPAC name "3-Methylpentane".

Therefore, the correct IUPAC name of the compound is 3-Methylpentane.