| 摘要 |
Novel isoindoline pigments of the formula (I): <IMAGE> (I) in which R1 is -CN; R2 is -CN or a saturated or unsaturated, aromatic or non-aromatic, 5- to 7-membered heterocyclic ring system which can be modified by fusion or bridging with other heterocyclic or isocyclic ring systems, the heteroatoms being N, O and/or S; or a group -CO-NR6R7, in which R6 and R7 are identical or different and are hydrogen or C1-C4-alkyl; or a group -CO-NR6R8, in which R8 is a saturated or unsaturated, aromatic or non-aromatic, 5- to 7-membered isocyclic or heterocyclic ring which is unsubstituted or substituted by one to 5 of the following radicals: C1-C4-alkyl, halogen, trifluoromethyl, C1-C4-alkoxy, carbomethoxy, carbethoxy, carboxamide, carboxamide substituted by a C1-C4-alkyl or phenyl group, nitro, C1-C4-acylamino or hydroxyl, and which can be modified by fusion or bridging with other heterocyclic or isocyclic ring systems, the heteroatoms being N, O and/or S; or in which R1 and R2 together are a saturated or unsaturated, aromatic or non-aromatic, 5- to 7-membered heterocyclic ring which is unsubstituted or substituted by one to 5 of the following radicals: C1-C4-alkyl, C1-C4-alkoxy, halogen, trifluoromethyl, carbomethoxy, carbethoxy, carboxamide, carboxamide substituted by a C1-C4-alkyl or phenyl group, C1-C4-acylamino or hydroxyl, and which can be modified by fusion or bridging with other heterocyclic or isocyclic ring systems, the heteroatoms being N, O and/or S; the radicals R3 and R4 are identical or different and are defined as follows: R3 is hydrogen, C1-C4-alkyl, phenyl, C1-C4-alkoxy, halogen or C1-C4-acylamino; R4 is hydrogen, C1-C4-alkyl, halogen, trifluoromethyl, methoxy, ethoxy or nitro; m is a number from 1 to 4; n is a number from 1 to 3; and R5 is hydrogen or C1-C4-alkyl.
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