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Basf Se Corporation

Matthias Krieger

Arno Boehm

Klaus Muellen

Erik Reuther

Stefan Becker

Klaus Müllen

Arno Böhm

Helmut Reichelt

Peter Erk

Martin Koenemann

Peter Blaschka

Reinhold Rieger

Willi Helfer

Christopher Kohl

Lorenz Siggel

Georg Beck

Hermann Bidlingmaier

A process for preparing quaterrylene-3,4:13,14-tetracarboximides of the general formula I in whichR, R' are each independently hydrogen or optionally substituted C-C-alkyl, C-C-cycloalkyl or aryl or hetaryl;which comprises reacting a perylene-3,4-dicarboximide of the general formula IIa in the presence of a base-stable, high-boiling, organic solvent and of an alkali metal base or alkaline earth metal base, with a perylene-3,4-dicarboximide of the general formula IIb in which X is hydrogen, bromine or chlorine.

Method for producing quaterrylene-3,4:13, 14-tetracarboxy diimides by direct synthesis

1,6,9,14-Tetrasubstituted terrylenetetracarboxylic diimides are particularly useful for absorbing and emitting in the long-wavelength red and near infrared region of the electromagnetic spectrum.

1,6,9,14-tetrasubstituted terrylene tetracarboxylic acid diimides

Rylene dyes of the general formula I where the variables are defined as follows: 

Rylene dyes

Tert-alkylphenoxy-substituted polycyclic compounds of the general formula I where

Tert-alkylphenoxy-substituted polycyclic compounds

Rylene derivatives of the general formula I where the variables have the following meanings:

Rylene derivatives and their use as dyes

Rylene dyes of the general formula Iwhere

Thermochromic rylene dyes

Rylene derivatives of the general formula Iwhere the variables have the following meanings:

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Mannheim, Germany

Matthias Krieger