Synthese von nichtsymmetrisch substituierten Perylen‐Fluoreszenzfarbstoffen

Abstract

Synthesis of Nonsymmetrically Substituted Perylene Fluorescent Dyes A general method for the preparation of perylene‐3,4:9,10‐tetracarboxdiimides 1 with two different substituents at the nitrogen atoms is described: The easily prepared symmetrical tetracarboxdiimides 1 (R 1 =R 2 ) are transformed into carboxdiimide anhydrides 2 and condensed with primary amines to the corresponding tetracarboxdiimides 1 (R 1 ≢ R 2 ). Applications as fluorescent tracers in biochemistry and polymer chemistry are discussed.