Basf Aktiengesellschaft

Badische Anilin- & Soda-fabrik Aktiengesellschaft

Ernst Schaffner

Manfred Patsch

Heinz Eilingsfeld

Guenter Hansen

Ernst Schefczik

Johannes Dehnert

Walter Kurtz

Wolf-Dieter Kermer

Wolfram Burst

Walter-Wielant Wiersdorff

Hermann Kaack

Josef Muller

Heinz Dralle

Rolf Steinkamp

Veratryl cyanide is prepared by chloromethylating veratrol in solution in toluene and then reacting the resulting veratryl chloride with from 1 to 5 moles of an alkali metal cyanide, by a process in which the toluene from the chloromethylation is not removed for the reaction with cyanide, and from 3 to 25% by weight, based on veratryl chloride, of water, from 5 to 50% by weight, based on toluene, of a ketone of 3 to 6 carbon atoms and from 0.1 to 10% by weight, based on veratryl chloride, of a phase transfer catalyst are added before the reaction with cyanide.

Preparation of veratryl cyanide

Uniformly dyed water-swellable cellulosic fibers obtained by dyeing cellulosic fibers, in the swollen state, with a dye of the formula ##STR1## where X is hydrogen, chlorine, bromine, cyano, nitro, alkylsulfonyl of 1 to 4 carbon atoms, phenylsulfonyl, methoxy or ethoxy, Y is hydrogen, chlorine, bromine, cyano or nitro, Z is a radical of the formula ##STR2## Q is oxygen or sulfur, R.sup.1 is alkyl of 1 to 4 carbon atoms, methoxymethyl, phenoxymethyl or phenyl which is unsubstituted or substituted by chlorine, bromine, nitro, methyl, methoxy or ethoxy, R.sup.2 is hydrogen, methyl, ethyl, phenyl or phenyl substituted by chlorine, bromine or methyl, R.sup.3 is hydrogen, methyl or, if R.sup.2 is methyl, is C.sub.1 to C.sub.4 alkoxycarbonyl, R.sup.2 and R.sup.3 together with the linking carbon atoms are phenylene or phenylene substituted by chlorine, methyl, methoxy or ethoxy and K is a radical of a coupling component selected from the pyrazolone, pyrazole, indole, quinolone or homophthalimide series.

Uniformly dyed water-swellable cellulosic fibers

The production of 3-monochloro and 3,6-dichloro derivatives of 2,4,5-trialkylbenzophenones by reaction of 2,4,5-trialkylbenzophenones with chlorine, and the new 3-monochloro-2,4,5-trialkylbenzophenones and 3,6-dichloro-2,4,5-trialkylbenzophenones themselves. The products are starting materials for the production of dyes and pesticides.

Production of 3-monochloro-2,4,5-trialkylbenzophenones and

The production of anthraquinone-1-carboxylic acid by reacting a benzoyl halide with a tert.-butylxylene in the presence of ferric chloride, adding aluminum chloride, oxidizing the dimethylbenzophenone formed and cyclizing the resulting benzophenonedicarboxylic acid. The product is a starting material for the production of dyes and pesticides.

Production of dimethylbenzophenone

Growing community of inventors

Ludwigshafen, Germany

Ernst Schaffner