Bayer Aktiengesellschaft

Lothar Rohe

Bernd Gallenkamp

Robert R Schmidt

Hans-Jochem Riebel

Ludwig Eue

Fritz Maurer

Jurgen Schramm

Erich Klauke

Ingeborg Hammann

Peter Gerdes

Wolfgang Hofer

Herbert Gayer

Bernhard Homeyer

Wilhelm Stendel

Wolfgang Behrenz

Lubbertus Mulder

Albrecht Marhold

Reinhard Lantzsch

Klaus Konig

Klaus-Helmut Muller

Peter Dahmen

Dieter Feucht

Mark Wilhelm Drewes

Wolfram Andersch

Joachim Kluth

Stefan Lehr

Rolf Pontzen

Rolf Kirsten

Werner Hallenbach

Rolf Schroder

Klaus-Helmut M&uuml;ller

Hans-Joachim Knops

Achim Hense

Kristian Kather

Johannes Kanellakopulos

Katharina Voigt

Ernst-Rudolf F Gesing

Ingeborg Hammen

Detleff Wollweber

Imidamide derivatives

Substituted heteroaryloxyacetanilides and their use as herbicides

Method for producing ar(alk)yluraciles, novel corresponding intermediate products and method for producing said intermediate products

The present invention relates to a novel process for preparing 3-(1-hydroxyphenyl-1-alkoximinomethyl)dioxazines which are known as intermediates for preparing compounds having fungicidal properties (WO 95-04728). Furthermore, the invention relates to novel 3-(1-hydroxyphenyl-1-alkoximinomethyl)dioxazines, to novel intermediates for their preparation and to a plurality of processes for preparing the novel intermediates.

Process for preparing 3-(1-hydroxyphenyl-1-alkoximinomethyl)dioxazines

Process for preparing 3-(1-hydroxphenyl-1-alkoximinomethyl)dioxazines

The invention relates to a process for preparing ar(alk)yluracils of the general formula (I)

The invention relates to an improved method for preparing optionally substituted benzofuran-3-ones which can be used as initial products for preparing 3-(1-hydroxyphenyl-1-alkoximinomethyl) dioxazines. These later are known starting materials for preparing compounds with fungicidal properties.

Method for preparing optionally substituted benzofuranones

Process for preparing 3-(1-hydroxyphenyl-1-alkoximinomethyl) dioxazines

By a novel process, 3,5-dimethylisoxazole-4-sulphonyl chloride is prepared by reacting 3,5-dimethylisoxazole initially with chlorosulphonic acid and then additionally with thionyl chloride at a temperature between 60.degree. C. and 110.degree. C.

Process for preparing 3,5-dimethylisoxazole-4-sulphonyl chloride

Preparation of an N-alkyl-arylamine of the formula ##STR1## in which Ar represents an aryl radical which is optionally monosubstituted or polysubstituted by at least one of halogen and in each case optionally substituted alkyl, alkoxy or alkoxycarbonyl,

Preparation of N-alkyl-arylamines

The present invention relates to a novel process for preparing N-methyl-N'-nitroguanidine by reacting nitroguanidine with aqueous methylamine solution at 0.degree. to 40.degree. C.

Process for preparing N-methyl-N'-nitroguanidine

A new process for the preparation of a known 1,3-dimethyl-5-fluoro-pyrazole-4-carboxanilide of the formula ##STR1## in which Ar represents optionally substituted phenyl, which process comprises

1,3-dimethyl-5-fluoro-pyrazole-4-carbonyl fluoride

Process for the preparation of

The invention relates to a novel process for the preparation of 1,2,4-triazine-3,5-diones by decarboxylation of corresponding 6-carboxy-1,2,4-triazine-3,5-diones, characterized in that it is carried out in aprotic organic solvents.

Process for the preparation of 1,2,4-triazine-3,5-diones

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Wuppertal, Germany

Lothar Rohe