ORGANIC CHEMISTRY Chapter 3 CH3-CH-=CH H---CH-CH Br Mechanism Step CH3-CH-=,+ H-Br CH2-CH-CH-H Step 2 Br CH2-CH—CH-H CH2-CH-CH-H Br Department of Chemistry, Xiamen UniversityORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 3 CH3 CH CH2 + H Br CH3 CH CH3 Br Mechanism Step 1 CH3 CH CH2 + H Br CH3 CH CH2 H Step 2 CH3 CH CH2 H Br CH3 CH CH2 H Br