Organic synthesis is a special branch of chemical synthesis and is concerned with the construction of organic compounds via organic reactions. Organic molecules can often contain a higher level of complexity compared to purely inorganic compounds, so the synthesis of organic compounds has developed into one of the most important branches of organic chemistry. There are two main areas of research fields within the general area of organic synthesis: total synthesis and methodology. A multi-step synthesis of any organic compound requires the chemist to accomplish three related tasks: 1. Constructing the carbon framework or skeleton of the desired molecule. 2. Introducing, removing or transforming functional groups in a fashion that achieves the functionality of the desired compound. 3. Exercising selective stereocontrol at all stages in which centers of stereoisomerism are created or influenced.