ORGANIC CHEMISTRY Chapter 17 Mechanism I Base-Promoted halogenation of aldehydes and Ketones Br- Br OH CH3-C-CH CH2-c-ch 2 CH2-c=ch CH2-C-Ch,Br Br Department of Chemistry, Xiamen UniversityORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 17 Mechanism Mechanism Base-Promoted Halogenation of Aldehydes and Ketones CH3 C CH3 O CH3 C CH2 O CH3 C CH2 O Br Br CH3 C CH2Br O + Br OH