Basf Aktiengesellschaft

Badische Anilin- & Soda-fabrik Aktiengesellschaft

Rolf Platz

Werner Fuchs

Norbert Rieber

Johann Jung

Bruno Wuerzer

Rudolf Kummer

Ulf-Rainer Samel

Hans-Martin Weitz

Heinz-Walter Schneider

Juergen Hartig

Karl Gerhard Baur

Franz Merger

Toni Dockner

Kurt Schwirten

Hans Hellbach

Volker Vogt

Heinrich Bohm

Manfred Patsch

Gerhard Nestler

Martin Fischer

Heinz Eilingsfeld

Franz-Josef Weiss

Franz J Broecker

Friedrich Towae

Karl Baer

Christian Dudeck

Gerd Fouquet

Peter Magnussen

Herbert Krug

Rolf Schnabel

Joachim Stabenow

Wolfgang Vodrazka

Jurgen Heners

Hans-Georg Schecker

Andreas Scholz

Kurt Taglieber

A process for the preparation of polycyclic nitrogen-containing compounds of the formula ##STR1## where R is hydrogen or an organic radical, wherein a compound of the formula ##STR2## where Alk is alkyl of 1 to 4 carbon atoms and R has the above meanings, is reacted with a solution of an alkali metal hydroxide or of calcium hydroxide and the product is then oxidized.

Preparation of polycyclic nitrogen-containing compounds

A process for the manufacture of pent-3-enoic acid and its alkyl esters, of the general formula

Manufacture of pent-3-enoic acid and its alkyl esters

Diazatricyclononene compounds of the formula ##STR1## and their intermediates, i.e. norbornane compounds of the formula ##STR2## where R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, A and n have the meanings given in the claims and in the description, their preparation and their use as plant protection agents or plant growth regulators.

Norbornane compounds, plant growth regulators containing these

Organic isocyanates, preferably alkyl, mono-, di- and/or polyisocyanates or aryl-mono-, di- and/or polyisocyanates, are prepared by thermally cleaving the corresponding urethanes at temperatures of 175.degree. C. to 600.degree. C. in the presence of carbon, preferably in an agitated carbon bed or in a fluidized bed containing carbon.

Process for the preparation of isocyanates by thermal cleaving of

A process for the simultaneous preparation of pyrazole and triazoles by reacting a triazoline compound with a basic compound and then oxidizing the product with hydrogen peroxide. The triazoles and pyrazole obtainable by the process of the invention are valuable starting materials for the preparation of dyes, pesticides and drugs.

Simultaneous preparation of pyrazole and triazoles

A process for the preparation of butane-1,4-diol by catalytic hydrogenation of a mixture obtained by treating maleic anhydride with an aliphatic alcohol at elevated temperatures, wherein a monohydric or dihydric aliphatic alcohol of boiling point above 180.degree. C. is used and the mixture of maleic acid and the alcohol is obtained by washing a gaseous reaction mixture, which contains maleic anhydride and is obtained in the catalytic oxidation of hydrocarbons by air, with the alcohol.

Preparation of butane-1,4-diol

1-Hydroxypyrazole and a process for its preparation by conversion of isoxazolineazoxy compounds at 140.degree.-600.degree. C. The end products obtainable by the process of the invention are valuable starting materials for the preparation of dyes, crop protection agents and drugs.

1-Hydroxypyrazole

New and valuable polycyclic compounds which contain nitrogen-containing rings and have a strong action on plants, agents for influencing plant growth containing these compounds, and a method of influencing plant growth with these compounds.

Polycyclic nitrogen-containing compounds

A process for the manufacture of salts of alkanedicarboxylic acids of 4 to 12 carbon atoms and alkanediamines of 3 to 14 carbon atoms, comprising reacting esters of alkanols of 1 to 4 carbon atoms and alkanedicarboxylic acids of 4 to 12 carbon atoms with alkanediamines of 3 to 14 carbon atoms in stoichiometric amounts in the presence of water at an elevated temperature, with continuous removal of the alkanols formed, in which process the reaction is carried out, from the start, in the presence of the particular salt of alkanedicarboxylic acid and alkanediamine which is to be manufactured.

Manufacture of salts of dicarboxylic acids and diamines

A process for the preparation of 2-methyl-pentane-2,4-diol by hydrogenating diacetone-alcohol at an elevated temperature in the presence of a catalyst which has been obtained by calcining the compound of the formula Ni.sub.6 Al.sub.2 (OH).sub.16 CO.sub.3 . 4H.sub.2 O.

Preparation of 2-methyl-pentane-2,4-diol

Tri/penta/aza-tetracyclo-dodeca/enes/dienes or diecaenes

Tri/penta/aza-tetracyclo-dodeca/enes/dienes or-decaenes

Tricyclic nitrogenous compounds having strong plant growth regulating properties are disclosed. The compounds display the general formula ##STR1## wherein A is one of several nitrogen-containing radicals, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are selected from various recited aliphatic, aryl, araliphatic and heterocyclic groups. R.sup.3 and R.sup.4 may also together form one of a number of nitrogen, sulfur and oxygen containing radicals. These compounds have a variety of uses, including the reduction of plant growth height without harm to the plant.

Tricyclic nitrogenous compounds having string plant growth regulating

Multistep process for the preparation of butanedicarboxylic acid by the hydrogenation of carbon monoxide under pressure in the presence of a cobalt carbonyl catalyst, the improvement of heating at a temperature of 250.degree. to 350.degree. C. under superatmospheric pressure the resulting aqueous solution of cobalt carbonyl hydride that has been extracted with butadiene or with mixtures thereof before using in a subsequent step of the multistep process.

Preparation of butanedicarboxylic acid esters

Growing community of inventors

Mannheim, Germany

Rolf Platz