Bayer Aktiengesellschaft

Bayer Cropscience Ag

Hans-Joachim Knops

Wilhelm Brandes

Bernd Gallenkamp

Wolfgang Kramer

Lubbertus Mulder

Reiner Fischer

Karl H Buchel

Thomas Himmler

Paul Reinecke

Hans-Georg Heine

Paul-Ernst Frohberger

Wilfried Draber

Robert R Schmidt

Christoph Erdelen

Reinhard Lantzsch

Ludwig Eue

Olga Malsam

Christian Arnold

Peter Babczinski

Angelika Lubos-Erdelen, Legal Representative

Ralf Nauen

Karl Steinbeck

Hans-Joachim Santel

Gerd Hanssler

Fritz Maurer

Ulrich Heinemann

Uwe Priesnitz

Lothar Rohe

Johannes Rudolf Jansen

Volker Paul

Stefan Antons

Jörg Konze

Jorg Konze

Christoph (deceased) Erdelen

Joerg Konze

The invention relates to a plurality of processes for the preparation of novel cis-alkoxy-substituted spirocyclic 1 H-pyrrolidine-2,4-dione derivatives of the formula (I) in which A, G, X and Y are as defined in the disclosure.

Cis-alkoxy-substituted spirocyclic 1H-pyrrolidine-2,4-dione derivatives serving as pesticides

The invention relates to novel 4-alkoxy-cyclohexane-1-amino-carboxylic esters of the formula (IV) in which Rand Rare as defined in the description,to intermediates and processes for their preparation and to their use as intermediates in the synthesis of insecticidal, acaricidal and herbicidal compounds or pharmaceutically active compounds.

4-alkoxy-cyclohexane-1-amino-carboxylic esters and processes for their preparation

The invention relates to novel cis-alkoxy-substituted spirocyclic 1H-pyrrolidine-2,4-dione derivatives of the formula (I) 

4-alkoxy cyclohexane-1 amino carboxylic acid esters and method for the production thereof

The invention relates to novel 4-alkoxy-cyclohexane-1-amino-carboxylic esters of the formula (IV) in which Rrepresents OR, Rrepresents alkyl, and Rrepresents alkyl, to intermediates and processes for their preparation, and to their use as intermediates in the synthesis of insecticidal, acaricidal, and herbicidal compounds or pharmaceutically active compounds.

4-Alkoxy cyclohexane-1-amino-carboxylic acid esters and method for the production thereof

The invention relates to a process for preparing cyclobutanone by oxidizing cyclobutanol with an alkali metal hypochlorite or alkaline earth metal hypochlorite in the presence of an acid.

Method of producing cyclobutanone

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 invention relates to a process for working up to crystallization mother liquor which is obtained in the resolution of the racemate of 1-(4-chlorophenyl)-ethylamine of the formula (I) with S-(-)-N-phenylcarbamoyllactic acid of the formula (II) by removing the ethanol from the ethanolic crystallization mother liquor by distillation in a 1st step and stirring the residue which remains with tert.-butyl methyl ether or toluene in a second step and it being possible to employ the resulting crystalline salt of (R/S)-1-(4-chlorophenyl)-ethylamine and (S)-(-)-N-phenylcarbamoyllactic acid directly again for the resolution of the racemate. The (S)-form of the amine is mainly present in the mother liquor and can be racemised and added to the resolution of the racemate again.

Process for working up the crystallization mother liquor from the

A fungicidally active substituted phenethyl-triazolyl derivative of the formula ##STR1## in which X.sup.1 and X.sup.2 each independently is halogen or halogenoalkyl, and one of them may also be hydrogen,

Fungicidal novel substituted phenethyl-triazolyl derivatives

In the preparation of 2-chloro-5-methylpyridine of the formula ##STR1## by reacting 3-methylpyridine 1-oxide with phosphorus oxychloride, the improvement which comprises carrying out the reaction in the presence of a basic organic nitrogen compound and in the presence of a diluent at a temperature between about -50.degree. C. and +50.degree. C.

Process for the preparation of 2-chloro-5-methylpyridine

Fungicidally active substituted cyclopropyl oxime ethers of the formula ##STR1## in which Z represents a nitrogen atom or the CH group,

Fungicidal substituted cyclopropyl oxime ethers

Novel herbicidally active N-methyl-4-pyridones of the formula ##STR1## in which R represents hydrogen, alkyl, alkenyl, alkynyl, alkoxyalkyl, halogenoalkyl, cycloalkyl, optionally substituted aralkyl or one equivalent of an ammonium or metal cation and

N-methyl-4-pyridones

Fungicidally active novel N-(3-chloro-1,2,4-oxadiazol-5-yl)-ureas of the formula ##STR1## in which R is alkyl, halogenoalkyl, or optionally substituted cycloalkyl, cycloalkylalkyl or aryl.

N-(3-chloro-1,2,4-oxadiazol-5-yl)-ureas

A 1-phenyl-3-amino-propane derivative of the formula ##STR1## in which R.sup.1 and R.sup.2 independently represent alkyl radicals or R.sup.1 and R.sup.2 together with the nitrogen atom to which they are bonded complete an optionally substituted heterocyclic radical of the formula ##STR2## and or additionally, if R.sup.4 represents the radical --O--CO--R.sup.5, --O--CO--NHR.sup.6 or --O--SiR.sub.3.sup.7, complete an optionally substituted heterocyclic radical of the formula ##STR3## R.sup.3 represents a hydrogen atom or an alkyl radical, R.sup.4 represents a hydroxyl group, halogen or the radical --O--CO--R.sup.5, --O--CO--NHR.sup.6 or --O--SiR.sub.3.sup.7,

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Monheim, Germany

Hans-Joachim Knops