ORGANIC CHEMISTRY Chapter 16 o Ketones are named by replacing the terminal -e of the corresponding alkane name with -one o The chain selected for the base name is the longest one that contains the ketone group, and the numbering begins at the end nearer the carbonyl carbon CH3 CH CH2-C-CH2 CH3 3- Hexanone3-已酮 (common name: Ethyl propyl ketone) CH3CH=CHCH2 CCH3 CH CHoCCHoCCH 4- Hexen-2-one4-己烯-2-酮2,4- Hexanedione2,4-已二酮 Department of Chemistry, Xiamen UniversityORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 16 Ketones are named by replacing the terminal –e of the corresponding alkane name with –one. The chain selected for the base name is the longest one that contains the ketone group, and the numbering begins at the end nearer the carbonyl carbon. CH3CH2CH2 C CH2CH3 O 3-Hexanone 3-己酮 CH3CH CHCH2CCH3 O CH3CH2CCH2CCH3 O O 4-Hexen-2-one 4-己烯-2-酮 2,4-Hexanedione 2,4-己二酮 (common name: Ethyl propyl ketone)