ABSTRACT
Let’s take a moment to review the nomenclature of aldehydes and ketones, before we look at their reactions. e su‘x for the aldehyde group, CHO, is -al, and the carbonyl carbon atom is always numbered as C-1. e su‘x for ketones is -one, and the chain is numbered so that the carbonyl group has the lowest number. So 14.1 is 5-chloro-4-ethyl-2-methyheptanal, and 14.2 is 4-chloro-6,8-dimethyl-3-nonanone. Remember that aldehydes and ketones are described as oxo substituents when there is an acid derivative in the molecule and that the acid derivative will take precedence in the numbering scheme.
