ORGANIC CHEMISTRY Chapter 3 Substitutions(取代) o Substitution reactions occur when two reactants exchange parts to give two new products o In a substitution, one replaces another A=B+C-D→A-C+B-D CH3-CI+ NaOH H20 Ch3oh+ naCl H H-C-H Cl-Cl H-C-Cl +H-Cl H H Department of Chemistry, Xiamen UniversityORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 3 Substitutions (取代) Substitution reactions occur when two reactants exchange parts to give two new products. In a substitution, one replaces another. A B + C D A C + B D CH3 Cl + NaOH CH3 OH + NaCl H2O H C H H H + Cl Cl hv H C H H Cl + H Cl