Aminocoumaranones as chemiluminescence indicators of the urease activity and hydrogen peroxide

We report a series of 3-aminocoumaranones possess significant chemiluminescence under various conditions. The introduce of the electron-donor groups in the coumaranone moiety and increasing of the conjugated π-system of coumaranones allow to shift 30–40 nm of the chemiluminescence maxima to the long-wavelength region. We showed that some 3-aminocoumaranones can be used for detecting of the urease and hydrogen peroxide.