2019 年 77 巻 4 号 p. 367-368
Organic compounds, mostly transparent in the visible area, are not necessarily transparent when they form electron-donor-acceptor (EDA) complexes. Once irradiated with visible light, EDA complexes can undergo photo-induced electron transfer (PET) between each component to generate a pair of radical species. Because of today's widespread recognition on the power of visible light for organic synthesis, we are experiencing unprecedented revisit to this phenomenon. This article overviews the history and synthetic application of PET between both ordinary organic compounds.