This course designed to make students aware of organic reactions in detail and depth. It will elaborate chemistry of aromatic, amine, carbonyl compounds, carboxylic acid, and oxidation-reduction reactions. In addition, biological molecules such as carbohydrates, amino acids, peptides, lipid, and nucleic acids are introduced to address basic concepts about natural product chemistry. The aim of this part of the course is to introduce important carbon-carbon bond forming reactions within a mechanistic and synthetic framework, together with exposure to a selection of stereochemical issues.