ORGANIC CHEMISTRY Chapter 15 CH Alc Zn(Hg) CH HOC HCI CH3 HO,C hf or PPA Zn(Hg) e or h2s04 CH HCI CH: or s O CH Department of Chemistry, Xiamen UniversityORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 15 CH3 O O O + AlCl3 CH3 HO2C O Zn(Hg) HCl CH3 HO2C HF or PPA or H2SO4 CH3 O Zn(Hg) HCl CH3 Se , or S , CH3