1,7-disubstituted perylene-3,4,9, 10-tetracarboxylic acids, their dianhydrides and diimides of said acids
AssigneeBASF SE
InventorsArno Bohm, Harald Arms, Georg Henning, Peter Blaschka
Life of this patent
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Abstract
1,7-Disubstituted perylene-3,4,9,10-tetracarboxylic dianhydrides I and perylere-3,4,9,10-tetracarboxylic acids Ia ##STR1## where L.sup.1, L.sup.2 independently of one another are 1,2-ethylene, 1,2-ethenylene and 1,2-ethynylene, and R.sup.1, R.sup.2 independently of one another are hydrogen or substituted or unsubstituted C.sub.1 -C.sub.30 -alkyl, their preparation and use as pigments, laser dyes and precursors for preparing fluorescent dyes, polymeric colorants, pigments and pigment additives, and also 1,7-disubstituted perylene-3,4,9,10-tetracarboxylic diimides (VI) as their intermediates.
Claims11
A 1,7-disubstituted perylene-3,4,9,10-tetracarboxylic dianhydride of formula I ##STR10## wherein L.sup.1, L.sup.2 independently of each other are 1,2-ethylene, 1,2-ethenylene or 1,2-ethynylene;
- R.sup.1, R.sup.2 independently of each other are hydrogen or C.sub.1 -C.sub.30 -alkyl, whose carbon atom chain optionally is interrupted by at least one moiety selected from the group consisting of --O--, --S--, --NR.sup.3 --, --CO-- and --SO.sub.2 -- and/or which is optionally substituted once by a moiety selected from the group consisting of --COOR.sup.3, --SO.sub.3 R.sup.3, cyano or a 5- to 7-membered heterocyclic radical which is attached via a nitrogen atom and which optionally contains one additional nitrogen atom, oxygen atom or sulfur atom and which is optionally aromatic;
- or substituted one or two times by hydroxyl, C.sub.1 -C.sub.5 -alkoxy, C.sub.5 -C.sub.8 -cycloalkyl or aryl, R.sup.3 being hydrogen or C.sub.1 -C.sub.6 -alkyl.
Dependencies are inferred from the claim text.