2021 Volume 56 Issue 2 Pages 75-83
Following Part 1 of this series, the development of organic chemistry in the field of science and technology, during the 20th century, which was the basis for medicinal-agrochemicals, is described in this paper. This is done by surveying specialized areas, such as natural product chemistry, bioorganic chemistry, supramolecular chemistry, organic syntheses, and organic reactions, and by referencing the prominent chemists who have made outstanding achievements in each field. Special attention is focused on the backgrounds and contributions of distinguished chemists including five Nobel laureates who made great efforts to reconstruct Japan’s organic chemistry during difficult times after World War II and Japan has become one of the best countries in the world in this field.