Nomenclature IUPAC Names The naming of ketones is actually fairly simple, if you use the IUPAC method. It is very similar to the naming of alcohols. You start by choosing the longest carbon chain you can find that includes the carbon from the carbonyl group and use the length of that carbon chain as your base name.he naming of ketones is actually fairly simple, if you use the IUPAC method. It is very similar to the naming of alcohols.