In ‘Organic Chemistry 2 class, lecture about classification and nomenclature of important functional groups which were not treated in ‘Organic Chemistry 1 class will be given. Moreover, students will study about physical and chemical properties of various organic compounds having these important functional groups. Especially, detailed explanations about remarkable stability(aromacity), physical property and chemical reactivity will be given. Physical properties and reactions of organic compounds having carbonyl groups will be introduced. Furthermore, Addition reactions and reactivity of carbanions at alpha carbon of carbonyl groups will be learned. Students will study about specific examples of these reactions and making a plan to synthesize desired products. Lecture about organic compounds having radical, method to generate radical, reactivity of radicals will be given also. Finally, student will study about NMR, IR, UV/Vis, Mass analyzing instruments to characterize structures of organic compounds.