The main objective of this course is to build a fundamental understanding of organic reactions and reaction mechanisms. The types of reactive intermediates that will be reviewed in this course include addition reactions involving C=C, C≡C and C=O bonds, electrophilic, and nucleophilic substitution reactions at aromatic systems. Active Methylene Compounds and alkylation, arylation, and acylation of active methylene compounds. Conditions, mechanism, and synthetic applications of various named reactions.