| 摘要 |
Diazopigments of the formula <IMAGE> +TR <IMAGE> wherein A denotes a direct bond or an aliphatic, cycloaliphatic, aromatic or heterocyclic radical, B denotes an aromatic radical, R1 denotes a H atom, an alkyl group which contains 1-4 C atoms and which is optionally substituted by a phenyl radical, or an aryl radical, R2 denotes a H atom, an alkyl group containing 1-4 C atoms, a cyano or carbamoyl group, an alkoxycarbonyl or alkylcarbamoyl group containing 2-6 C atoms, or a phenyl, benzoyl or phenylcarbamoyl group which is optionally substituted in the phenyl radical by halogen atoms or alkyl or alkoxy groups containing 1-4 C atoms, R3 denotes a H atom, an alkyl group containing 1-4 C atoms, a cycloalkyl group containing 5-6 C atoms, a cyano, hydroxyl or carbamoyl group, an alkoxycarbonyl or alkylcarbamoyl group containing 2-6 C atoms, or a phenyl or phenylcarbamoyl group which is optionally substituted by halogen atoms or alkyl or alkoxy groups containing 1-4 C atoms, and Z denotes an O atom or a N atom, and the N atom, conjointly with the radical R1, forms a benzimidazole ring, which are useful for pigmenting high-molecular organic material.
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