Organic chemistry belongs to a branch of chemistry that is generally associated with compounds containing carbon. It is so important because millions of compounds that contain carbon are related to our daily lives, so organic chemistry has many close connections with living things. For examples, amino acids can react together to form proteins, which help constitute the essential compounds of muscle, skin and blood. And the DNA in our bodies contain all of our genetic information. A human body is just like a large reaction flask in which many organic reactions occur simultaneously. Those reactions are catalyzed by our enzymes. This is why we refer to carbon-containing compounds organic. Many organic compounds also have a wide range of applications in industry and health care, e.g. fuel, oil, detergents, body lotion and cosmetics. Organic chemistry is therefore an important branch of chemistry.
Advanced organic chemistry involves the strategy of organic synthesis, which is a series of chemical reactions for the construction of large, complex organic compounds from small, simple building blocks of starting materials. An organic chemist must develop advanced knowledge of synthetic tools, and learn how to apply these theoretical strategies to real examples.