Light-induced transformations of 1,2-dihydroquinolines: opening of the heterocycle, radical formation and photoinduced proton transfer

Three types of light-induced photochemical reactions of 1,2-dihydroquinolines, opening of the heterocycle, formation of aminyl radicals upon the homolytic N–H bond cleavage and proton transfer in protic solvents, have been considered. Special attention has been focused on the photoinduced proton transfer reactions. The effect of the dihydroquinoline structure and solvent composition on the routes and kinetic parameters of photochemical reactions has been analyzed. The bibliography includes 108 references.