Bayer Aktiengesellschaft

Eckart Kranz

Wolfgang Kramer

Wilhelm Brandes

Karl H Buchel

Kurt Findeisen

Hans-Ludwig Elbe

Paul-Ernst Frohberger

Axel Haberkorn

Heinrich Kolling

Robert R Schmidt

Manfred Jautelat

Josef H Reisdorff

Gerd Aichinger

Stefan Dutzmann

Klaus Lurssen

Gerd Hanssler

Ludwig Eue

Peter Siegle

Hermann Arold

Claus Stolzer

Hans-Joachim Santel

Reinhard Lantzsch

Jorg Stetter

Erik Regel

Udo Kraatz

Rudiger Schubart

Peter Andrews

Gerhard Bonse

Nikolaus Muller

Thomas Schmidt

Karlfried Dickore

Jurgen Schramm

Rudolf Thomas

Birgit Krauskopf

Karl-Julius Reubke

Klaus Ditgens

Gunther Cramm

Herbert Schwarz

Heinrich Steude

Wolfgang Kreiss

Gunter Hellrung

Henning Dorr

Fungicidal dioxolanes of the formula ##STR1## in which R.sup.1 represents optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkinyl, optionally substituted cycloalkyl, optionally substituted cycloalkylalkyl, optionally substituted aryl, optionally substituted aryloxy, optionally substituted arylthio, optionally substituted arylsulphinyl, optionally substituted arylsulphonyl, optionally substituted arylalkyl, optionally substituted aryloxyalkyl, optionally substituted arylthioalkyl, optionally substituted arylsulphinylalkyl, optionally substituted arylsulphonylalkyl, optionally substituted aralkyloxyalkyl, optionally substituted aralkylthioalkyl, optionally substituted aralkylsulphinylalkyl or optionally substituted aralkylsulphonylalkyl,

Microbicidal substituted dioxolanes

A herbicidal or plant growth-regulating 6-(pent-3-yl)-1,2,4-triazin-5(4H)-one of the formula ##STR1## in which R.sup.1 represents amino and

Herbicidal and plant growth-regulating

New alkylcycloalkyl triazolylmethyl ketones of the general formula ##STR1## in which R represents an alkyl group and

Novel alkylcycloalkyl triazolylmethyl ketones as fungicide intermediates

Fungicidal dioxolanes of the formula ##STR1## in which R.sup.1 represents optionally substituted alkyl, or other radicals

3-carbamoyl-4-hydroxy-couramins for combating parasitic helminths of the formula ##STR1## in which R.sup.1 represents hydrogen, halogen, alkyl, NO.sub.2, CN or alkoxy,

3-carbamoyl-4-hydroxy-coumarins for combating parasitic heiminths

A process for preparing an .alpha.-ketonitrile of the formula ##STR1## in which R is optionally substituted aryl, comprising reacting a cyanohydrin of the formula ##STR2## with sulphuryl chloride or thionyl chloride.

Process for preparing .alpha.-ketonitriles

Cycloalkyl (.alpha.-triazolyl-.beta.-hydroxy)-ketones of the general formula ##STR1## in which R.sup.1 represents an optionally substituted cycloalkyl group, and

Cycloalkyl (.alpha.-triazolyl-.beta.-hydroxy)-ketones as fungicides and

A process for the preparation of a herbicidally active 1-amino-1,3,5-triazone-2,4 (1H,3H)-dione of the formula ##STR1## comprising in a first stage at a temperature from about 0.degree. to 100.degree. C. reacting an isocyanate of the formula

Process for the preparation of 1-amino-1,3,5-triazine-2,4(1H,3H)-diones

New alkylcycloalkyl imidazolylmethyl ketones of the general formula ##STR1## in which R represents an alkyl group and

Alkylcycloalkyl imidazolylmethyl ketones as fungicide intermediates

3-Alkenylmercapto-, 3-alkinylmercapto-, 3-alkenylamino- and 3-alkinylamino-4-amino-6-tert.-butyl-1,2,4-triazin-5-ones of the general formula ##STR1## in which A represents a sulphur or a radical of the general formula --NR.sup.2 --,

Herbicidally active novel

Acyl cyanides of the formula ##STR1## in which R represents an optionally substituted alkyl group having 1 to 8 carbon atoms, an optionally substituted cycloalkyl group having 3 to 12 carbon atoms or an optionally substituted aryl group, or an optionally substituted 5-membered or 6-membered heterocyclic radical which additionally can be fused to a benzene ring, are obtained in high yields by reacting carboxylic acid anhydrides of the formula R--CO--O--CO--R (II) with trimethylsilyl cyanide, (CH.sub.3).sub.3 Si--CN (III), if appropriate in the presence of a catalyst and, if appropriate, in the presence of a diluent, at a temperature between 50.degree. and 250.degree. C. The acyl cyanides can be used as intermediate products, for example, for the preparation of certain herbicidally active compounds of the triazinone series.

Preparation of acyl cyanides

In the preparation of a phenoxy-azolyl-butanone derivative of the formula ##STR1## in which X is a halogen atom,

Preparation of phenoxy-azolyl-butanone derivatives

A substituted 6-halogeno-tert.-butyl-1,2,4-triazin-5-one of the formula ##STR1## in which R.sup.1 is an amino or methyl group,

Herbicidally active substituted

An .alpha.-azolyl-keto derivative of the formula ##STR1## in which R.sup.1 represents optionally substituted alkyl or optionally substituted phenyl,

Combating fungi with .alpha.-azolyl-keto derivatives

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Wuppertal, Germany

Eckart Kranz