Now recall that ketones possess a carbonyl carbon connected to two carbon atoms. Now here the set of rules for naming ketones are similar to those used for naming alcohols.

Here though the modifier, the ending of E is changed to 1, and when we talk about the naming convention, we still have to give the locations of different substituents. We then have to give the location of the carbonyl group that is part of the parent chain, and then remember that we're doing a modification to the E ending to one.

These are the keys to naming any ketones that we're going to see.