US 4,079,052 A · Diazopigments containing pyridine derivatives

Abstract

Diazopigments of the formula ##STR1## wherein A denotes a direct bond or an aliphatic, cycloaliphatic, aromatic or heterocyclic radical, B denotes an aromatic radical, R.sub.1 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, R.sub.2 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, R.sub.3 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 R.sub.1, forms a benzimidazole ring, which are useful for pigmenting high-molecular organic material.

Claims8

Dependent claims

A diazopigment of the formula ##STR73## wherein A denotes a direct bond;

alkylene containing 1 to 6 carbon atoms;
phenylene;
phenylene substituted by halogen, alkyl containing 1 to 4 carbon atoms, or alkoxy containing 1 to 4 carbon atoms;
naphthalene;
furanediyl;
or thiophenediyl;
X and Y denote hydrogen;
halogen;
alkyl containing 1 to 4 carbon atoms;
or alkoxy containing 1 to 4 carbon atoms;
R.sub.1 denotes hydrogen;
alkyl containing 1 to 4 carbon atoms;
alkyl containing 1 to 4 carbon atoms substituted by phenyl;
phenyl;
phenyl substituted by halogen, alkyl containing 1 to 4 carbon atoms, or alkoxy containing 1 to 4 carbon atoms;
R.sub.3 denotes hydrogen;
alkyl containing 1 to 4 carbon atoms;
cycloalkyl containing 5 to 6 carbon atoms;
cyano;
hydroxyl;
carbamoyl;
alkoxycarbonyl containing 2 to 6 carbon atoms;
alkylcarbamoyl containing 2 to 6 carbon atoms;
phenyl;
phenyl substituted by halogen, alkyl containing 1 to 4 carbon atoms, or alkoxy containing 1 to 4 carbon atoms;
phenylcarbamoyl;
or phenylcarbamoyl substituted by halogen, alkyl containing 1 to 4 carbon atoms, or alkoxy containing 1 to 4 carbon atoms;
and Z denotes oxygen;
or nitrogen which, conjointly with the radical R.sub.1, forms a benzimidazole ring.

26 more elements

Dependencies are inferred from the claim text.

Diazopigments containing pyridine derivatives

Life of this patent

Diazopigments containing pyridine derivatives

Life of this patent

Abstract

Claims8