Bayer Aktiengesellschaft

Heinrich Gold

Karl H Buchel

Paul-Ernst Frohberger

Uwe Claussen

Gerhard Wolfrum

Helmut Kaspers

Alfons Dorlars

Walter Horstmann

Josef Schroeder

Triphenyl-1,2,3-triazolyl-(1)-methanes of the formula ##STR1## in which X and Z each independently is hydrogen, alkyl, halogen, nitrile or thiocyano, and

Triphenyl-1,2,3-triazolyl-(1)-methanes, and compositions and methods for

Azo dyestuffs of the formula ##SPC1## Wherein A stands for the residue of the diazo component, R stands for hydrogen or methyl, R.sub.1 is a non-ionic substituent, M is a number from 0 to 2, R.sub.2 stands for hydrogen or for an aliphatic, araliphatic, or aromatic radical, R.sub.3 and R.sub.4 are independently selected from the group consisting of hydrogen, alkyl, alkoxy methyl, aryl, carboxy, carboalkoxy, said dyestuff being free of sulphonic acid groups and being adapted for use in dyeing and printing synthetic fiber materials. The quaternary salts of the dyestuffs are also adapted for use in such dyeing and printing.

Monoazo dyestuffs containing an N-.beta.-1,2,3-triazolylethyl anilino

The stilbene compound of the formula ##SPC1## Exists in three crystal modifications. Two of them are valuable as brighteners for preparing colorless detergents. The stilbene compound is prepared from the corresponding sulphonic acids, their mono- or di-sodium salts.

Triazolyl stilbene brighteners method of preparing and detergents

2-Aryl-v-triazoles are obtained by reacting .alpha.-oximinoaryl-hydrazones of the formula ##EQU1## IN WHICH Ar represents an aromatic-carbocyclic or aromatic-heterocyclic radical, R.sub.1 denotes alkyl, aryl or nitro, R.sub.2 denotes hydrogen, alkyl or aryl and n denotes the numbers 1 or 2 with at least 2 equivalents of an isocyanate or carbamic acid halide or with at least 1 equivalent of a pyrocarbonic acid ester.

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Bergisch-Gladbach, Germany

Heinrich Gold