Bayer Aktiengesellschaft

Bayeraktiengesellschaft

Hans-Joachim Diehr

Hans-Joachim Santel

Robert R Schmidt

Klaus-Helmut Muller

Uwe Priesnitz

Joachim Kluth

Christa Fest

Theodor Pfister

Wolfgang Roy

Hans-Jochem Riebel

Rolf Kirsten

Ludwig Eue

Heinz Forster

Ernst Kysela

Wilhelm Haas

Klaus Lurssen

Gerd Hanssler

Kurt Findeisen

Koichi Moriya

Karl-Heinz Linker

Wilhelm Brandes

Albrecht Marhold

Markus Dollinger

Fritz Maurer

Erich Klauke

Paul Reinecke

Karl-Heinz Kuck

Rudolf Merten

Wilfried Paulus

Jurgen Hocker

Hans-Georg Schmitt

Helmut Kraus

Hermann Arold

Reinhard Lantzsch

Heinz-Wilhelm Dehne

Jorg Stetter

Alexander Klausener

Benedikt Becker

Bernd Gallenkamp

Bernd Baasner

Gunther Beck

Gerd Kleefeld

Hans Lindel

Stefan Bohm

Thomas Schmidt

Karl-Rudolf Gassen

Achim Bertsch

Siegbert Humburger

Helmut Porkert

Reimer Collin

Uwe Friesnitz

Reimer Co/ Lln

Hans-Jochim Riebel

Rolf Kristen

Herbicidal fluorothiadiazolyl oxyacetamides

Heterocyclyl-1,3,4-thiadiazolyloxyacetamides and their use as herbicides

The invention relates to a new process and new intermediates for the preparation of triazolinones of the general formula (I) ##STR1## in which R.sup.1 represents in each case optionally substituted alkyl or cycloalkyl and

Process and intermediates for the preparation of triazolinones

The invention relates to a new process for the preparation of substituted amino-carbonyltriazolinones of the general formula (I) ##STR1## in which R.sup.1 and R.sup.2 have the meanings given in the description.

Process for the preparation of substituted aminocarbonyltriazolinones

The invention relates to a new process for the preparation of substituted aminotriazolinones of the general formula (I) ##STR1## in which R has the meanings mentioned in the description.

Process for the preparation of substituted aminotriazolinones

Intermediates for the preparation of triazolinones

Process for the preparation of triazolinones

Process for the preparation of 2-chloro-5-aminomethylpyridine of the formula (I) ##STR1## by a reaction of 2-chloro-5-cyano-pyridine of the formula (II) ##STR2## with hydrogen in the presence of ammonia and in the presence of an anhydrous metal catalyst, characterized in that the reaction is carried out in an apolar aprotic diluent at temperatures between 20.degree. C. and 150.degree. C.

Process for the preparation of 2-chloro-5-aminomethyl-pyridine

The invention relates to a novel process for preparing chloromethylpyridines of the general formula (I) ##STR1## in which n represents the numbers 0,1,2 or 3 and

Process for preparing chloromethylpyridines

Process for the preparation of compounds of the formula (I) ##STR1## in which R.sup.1, R.sup.2, R.sup.3, X and n have the meaning given in the description, by reacting acetates with carbon monoxide in the presence of a basic auxiliary, followed by alkylation. The products are intermediates for fungicidal acrylates.

Process for the preparation of substituted 3-alkoxyacrylates

The invention relates to a new process for the preparation of 2-chloro-5-alkylaminomethyl-pyridines of the formula (I) ##STR1## in which R represents alkyl. In this process, 2-chloro-5-aminomethyl-pyridine is reacted with formic acid at temperatures between 20.degree. C. and 200.degree. C., if appropriate in the presence of a diluent, the 2-chloro-5-formylaminomethyl-pyridine which has been formed in this process is reacted without intermediate isolation (in situ) with alkylating agents at temperatures between 0.degree. C. and 100.degree. C., if appropriate in the presence of an acid acceptor, if appropriate in the presence of a diluent, and, finally, the 2-chloro-5-(N-alkyl-N-formyl-aminomethyl)-pyridines thus formed of the general formula (V) ##STR2## in which R has the abovementioned meaning, are reacted with aqueous alkali metal hydroxide solution at temperatures between 20.degree. C. and reflux temperature, if appropriate after volatile components have been distilled off. The compounds (I) are, for example, intermediates for the preparation of insecticidally active substances.

Process for the preparation of 2-chloro-5-alkylaminomethyl-pyridines

The invention relates to the use of 2,5-substituted 1,3,4-thiadiazoles of the formula ##STR1## in which R.sup.1 stands for straight-chain or branched halogenoalkyl,

Microbicidal agents

Herbicidal cycloalkyl-substituted thiadiazolyloxyacetamides of the formula ##STR1## in which R.sup.1 represents hydrogen, or represents an optionally substituted radical selected from the group consisting of alkyl, alkenyl, alkynyl and aralkyl,

Herbicidal cycloalkyl-substituted thiadiazolyloxyacetamides

Use of compounds of the formula (I) ##STR1## in which Ar, R and X have the meaning indicated in the description, for combating phytopathogenic fungi in agriculture. The compounds of the formula (I), are known and can be prepared by analogous processes, for example by oxidizing the corresponding thio compounds, for example using potassium permanganate.

Fungicidal agents based on heterocyclically substituted sulphones

The present invention relates to a new process for the preparation of N-(2-chloro-pyridin-5-yl-methyl)-ethylene-diamine of the formula (I) ##STR1## in a technically simple manner in high yield and in very good quality. The new process is characterized in that N-(2-chloro-pyridin-5-yl-methyl)-aminoacetonitrile of the formula (II) ##STR2## is reacted with hydrogen in the presence of ammonia and in the presence of a catalyst and also in the presence of a diluent, at temperatures between 0.degree. C. and 100.degree. C. and a pressure between 1 bar and 100 bar. N-(2-Chloro-pyridin-5-yl-methyl)-ethylenediamine (I) can be used as an intermediate for the preparation of insecticides.

Process for the preparation of

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Wuppertal, Germany

Hans-Joachim Diehr