All Chapters Video 3.5 Naming Aldehydes and Ketones Chapter OutlineChapter Quiz Question? Ask Dr. Mike! Lesson Summary When naming aldehydes, we follow the rules for naming alkanes with the addition of two rules: 1. We number the parent chain in the direction that gives highest priority (lowest number) to the aldehyde (carbonyl) carbon. 2. We replace “e” with “al”. When naming ketones, we follow the same rules for naming alkanes, except: 1. Similar to aldehydes, the parent chain must be chosen with priority given to the ketone (carbonyl) carbon. 2. Replace the “e” with “one”. 3. The carbonyl carbon in a cyclic ketone is assumed to be the #1 carbon. Note: it is also possible to name each chain on either side and then follow it with the word “ketone”. For example: 3-hexanone can also be called ethyl propyl ketone. Lesson 3.5 Naming Aldehydes and Ketones 3.1 IUPAC Basics and Naming Alkanes 3.1 Quiz Video Solution 3.2 Naming Cycloalkanes and Alkyl Halides 3.2 Quiz Video Solution 3.3 Naming Alkenes and Alkynes 3.3 Quiz Video Solution (Pt. 1) 3.3 Quiz Video Solution (Pt. 2) 3.3 Quiz Video Solution (Pt. 3) 3.4 Naming Alcohols, Ethers, and Amines 3.4 Quiz Video Solution (Pt. 1) 3.4 Quiz Video Solution (Pt. 2) 3.5 Naming Aldehydes and Ketones 3.5 Quiz Video Solution 3.6 Naming Carboxylic Acids and Derivatives 3.6 Quiz Video Solution 3.7 Naming Aromatics 3.7 Quiz Video Solution 3.8 Naming Polyfunctional Compounds 3.8 Quiz Video Solution (Pt. 1) 3.8 Quiz Video Solution (Pt. 2) Instructor Dr. Mike Christiansen Dr. Christiansen is a chemistry professor at Utah State University and has a PhD in organic chemistry. He's been teaching students chemistry for nearly 12 years.