Being efficient phosphors, derivatives of naphth- imide {1H-benzo[de]isoquinoline-1,3(2H)dione } are widely used in preparing dyes [1], optical brighteners for natural and synthetic materials [2], day fluorescent pigments [3], blends for crack detection on solid sur- faces [4], and active compositions for radioelectronics [5]. Several N-substituted naphthimides are biological- ly active compounds, which can be used as precursors of antitumor and antiviral preparations [6]. ...
