Abstract:
The invention relates to core-extended perylene bisimides of formula (I) and (II), wherein R and R independently represent unsubstituted or substituted C1-C24alkyl, C1-C24cycloalkyl or C6-C10aryl and A and A independently representS-,S-S-,CH=CH-, R OOC-C(-)=C(-)-COOR ,N=N- orN(R )- or a compound selected from the group consisting of organic radicals of formulae (III), (IV), (V), (VI) and (VII), wherein R represents hydrogen, C1-C24alkyl or C1-C24cycloalkyl, and R represents unsubstituted or substituted C1-C24alkyl, C1-C24cycloalkyl, phenyl, benzyl,CO-C1-C4alkyl,CO-C6H5 or C1-C4alkyl carboxylic acid-(C1-C4alkyl)-ester and A represents a compound having formulae (III), (IV) or (V), in addition to intermediate products for the production of the compounds. The invention also relates to a method for producing said intermediate products and to a method for the production of compounds (I) and (II) as well as to their uses as colorants.