The invention relates to the dimeric compound of formula (II)
wherein the two monomer-units are linked with each other either via R
3
or via R
4
; the ring A is a five-or six-membered heteroaromatic ring, one of the groups R
3
or R
4
is an unsubstituted or substituted phenylene radical, the remaining group R
3
or R
4
is a C
1
-C
4
alkyl, C
5
-C
6
cycloalkyl, an unsubstituted or substituted phenyl, benzyl, benzanilide or naphthyl; or wherein the group NR
4
together with the ring A constitutes a five-or six membered heterocycle that can be annelated with a benzene ring, and R
3
is an unsubstituted or substituted phenylene radical. The inventive compounds can be used for pigmenting high-molecular organic materials.
本发明涉及式(II)的二聚化合物,其中两个单体单元通过R3或R4连接在一起;环A是一个五或六元杂芳环,R3或R4中的一个是未取代或取代的苯基基团,剩余的R3或R4是C1-C4烷基,C5-C6环烷基,未取代或取代的苯基,苄基,苯甲酰胺或
萘基;或其中NR4基团与环A共同构成一个五或六元杂环,可以与苯环连接,而R3是未取代或取代的苯基基团。本发明的化合物可用于为高分子有机材料着色。