One-Step Cascade Synthesis of <i>ortho</i>–<i>bay</i>-Imidazolo-Extended Perylene Biscarboximides (OBISIM) and Their Application as Broad-Spectrum Fluorescent Dyes
作者:Heinz Langhals、Simon Kinzel、Andreas Obermeier
DOI:10.1021/acs.joc.3c01694
日期:2024.2.16
A one-step synthesis of perylene dyes with lateral extension by condensed imidazoles in a cascade reaction of sodium amide and benzonitrile is described in which multiple extensions can be controlled by the reaction conditions. The extensions lead to bathochromic shifts in absorption and fluorescence while maintaining high fluorescence quantum yields. The condensed imidazole units cause additional