Basf Aktiengesellschaft

Other

Clemens Grund

Helmut Reichelt

Gunther Lamm

Arno Lange

Ernst Schefczik

Stefan Beckmann

Karl-Heinz Etzbach

Gerhard Wagenblast

Helmut Hagen

Guenter Hansen

Ruediger Sens

Volker Bach

Rudiger Sens

Andreas Johann Schmidt

Rainer Becker

Wolfgang Hoelderich

Erwin Hahn

Bernhard Albert

Johannes P Dix

Hermann Loeffler

Helmut Degen

Martin Holderbaum

Sabine Gruettner-Merten

Paul Guenthert

Guenter Lauth

Roland Merger

Frank Wurthner

Thomas Roetsch

Paul Richter

Klaus Friedrich

Guenther Glas

Mathias Wiesenfeldt

Andreas Guldner

Andreas Geisberger

Trifluormethylpyridone based indolenine methine dyes

Naphtholactam dyes

The present invention relates to trifluoromethylpyridone-based methine and azamethine dyes of the formula I ##STR1## a process for their thermal transfer, a process for dyeing or printing synthetic materials and their use.

Methine and azamethine dyes based on trifluoromethylpyridones

Benzopyran dyes and their intermediates

A process for preparing alkyl cyanoacetates of the general formula I ##STR1## where R is an n-valent aliphatic radical which has 6 to 20 carbon atoms and whose carbon framework can be interrupted by one to three oxygen atoms in ether functionality, and n is a number from 1 to 6, by reacting cyanoacetic acid in aqueous medium with an alcohol R(OH).sub.n, where the esterification is carried out in the presence of an inert entrainer and, during the reaction, water and entrainer are distilled out.

Preparation of alkyl cyanoacetates

Nitro dyes

Phenylazotriazolopyridine dyestuffs

Azo dyestuffs containing a diazo component from the aniline series and

Molecular sieves containing azo dyes

A process for the preparation of dicyanobenzenes of the formula ##STR1## in which x denotes hydroxy, C.sub.1 -C.sub.4 alkoxy, nitro, amino, mono- or di-(C.sub.1 -C.sub.4 alkyl)amino, phthalimido or a nitrogenous saturated 5-membered or 6-membered heterocyclic radical, which is attached to the phenyl ring via a nitrogen atom in which a xylene of the formula ##STR2## in which x has the meaning stated above, is oxidized at a temperature of from 400.degree. to 500.degree. C. with oxygen in the presence of ammonia and a catalyst.

Preparation of dicyanobenzenes by ammonoxidation

There are described dye mixtures containing

Mixtures of azo dyes for navy to black shades

A process for the preparation of C.sub.4 -C.sub.10 alkyl cyanoacetates by the reaction of cyanoacetic acid with C.sub.4 -C.sub.10 alkanols at a temperature of from 35.degree. to 150.degree. C. and under a pressure of from 70 to 1013 mbar, in the presence of catalytic amounts of acid, while a C.sub.4 -C.sub.10 alkanol/water azeotrope is separated during the reaction.

Azo dyes useful for dyeing or printing textile fibers or fabrics and containing novel aminobenzo heterocycles as diazo component have the formula ##STR1## where X is nitrogen or a radical of the formula CR.sup.6, where R.sup.6 is hydrogen, C.sub.1 -C.sub.4 -alkoxycarbonyl or C.sub.1 -C.sub.6 -alkanoyl,

Benzisothiazole- and benzothiophene-azo dyes with a coupling component

Azo dyes having the formula ##STR1## wherein the substituents are as defined in the specification and are useful for dyeing or printing textile materials.

Thiopheneazo dyes with a coupling component of the diaminopyridine series

Azo dyes useful for dyeing or printing textile fibers or fabrics and for thermal transfer have the formula ##STR1## where R.sup.1 and R.sup.2 are each substituted or unsubstituted C.sub.1 -C.sub.10 -alkyl or substituted or unsubstituted C.sub.3 -C.sub.4 -alkenyl or R.sup.1 may also be hydrogen,

Azo dyes with a coupling component of the quinoline series

Growing community of inventors

Mannheim, Germany

Clemens Grund