ORGANIC CHEMISTRY Chapter 15 C H H H H Cl Cl +C E EH EH E HE H H H H E E Department of Chemistry, Xiamen UniversityORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 15 + E+ Cl Cl E H Cl E H Cl E H Cl Cl Cl E H E H E H Cl Cl Cl H E H E H E Cl E H Cl E H