Bayer Aktiengesellschaft

Manfred Lorenz

Karl H Schundehutte

Artur Haus

Rainer Hamprecht

Klaus-Wilfried Wanken

Klaus Wilfried Wanken

Isoindolenineamide dyestuffs

Compounds which correspond to the formula (I) or tautomeric forms thereof ##STR1## wherein R.sub.1, R and x have the meaning given in the description, are particularly suitable for dyeing and printing hydrophobic synthetic or semi-synthetic materials, in particular car cover fabrics.

Benzoxazolylisoindolenines

Benzimidazole-isoindolenines of the formula (I) ##STR1## wherein A represents N or a cyanomethylene radical,

Benzimidazole-isoindolenine dyestuffs

Novel thiozolylisoindolenine dyestuffs of the formula (I) ##STR1## have been found in which A represents N or a cyanomethylene radical,

Thiazolylisoindolenine dyestuffs

Preparation of diazo compounds by transfer of diazo groups to activated methylene compounds, characterized in that an azidoformamidinium salt is used as the diazo group transferring agent, and also preparation of azo compounds by this route.

Preparation of diazo and azo compounds using azidoformamidium salts

Halftone gravure printing inks containing an azo dyestuff

Halftone gravure printing inks containing pyridone azo dyestuffs wherein the dyestuffs are obtained by reacting a pyridone dyestuff of the formula ##STR1## with a dicarboxylic or polycarboxylic acid or a pyridone azo dyestuff of the formula ##STR2## with a dihydroxy or polyhydroxy compound.

Halftone gravure printing inks containing pyridone azo dyestuffs

Azobarbituric acid derivatives characterized in that in their free acid form they have the following tautomeric structure are disclosed: ##STR1## The azobarbituric acid derivatives are characterized in that X and Y rings can each carry one or two substituents from the series comprising .dbd.O, .dbd.S, .dbd.NR.sub.7, --NR.sub.6 R.sub.7, --OR.sub.6, --SR.sub.6, --COOR.sub.6, --CN, --CONR.sub.6 R.sub.7, --SO.sub.2 R.sub.8, ##STR2## alkyl, cycloalkyl, aryl and aralkyl, the total number of the endocyclic and exocyclic double bonds for each of the rings X and Y being three. The new azobarbituric acid derivatives are other than those of azobarbituric acid, azouracil and uracil-5-azobarbituric acid and their salts. The compounds are useful as pigments which pigments are useful for pigmented paints, in printing inks, distempers or emulsion paints, inter alia.

Derivatives of azobarbituric acid or salts or complexes thereof

New inclusion compound, intercalation compounds or solid solutions which are the nickel salts or nickel complexes of a compound which, in one of its tauteromeric structures, corresponds to the formula ##STR1## which contain at least one other included compound, except for one composition of matter which consists of 45 to 82% by weight of azobarbituric acid/nickel 1:1 complex, 3 to 15% by weight of benzene-sulphonamide, 5 to 20% by weight of nickel acetate and 10 to 20% by weight of water and the use of these materials as pigments are disclosed.

Inclusion compounds, intercalation compounds, and solid solutions of

Compounds which, in one of their tautomeric structures, correspond to the formula ##STR1## in which the ring A can carry 1, 2, 3 or 4 identical or different substituents, processes for their preparation and their use as intermediate products for the preparation of dyestuffs.

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Koln, Germany

Manfred Lorenz