Bayer Cropscience Ag

Bayer Aktiengesellschaft

Bayer Intellectual Property Gmbh

Degussa Aktiengesellschaft

Lanxess Deutschland Gmbh

Bayer Chemicals Ag

Thomas Geller

Christoph Erdelen

Albrecht Marhold

Andreas Turberg

Karlheinz Drauz

Norbert Lui

Hans-Christian Militzer

Christa Maria Kr&uuml;ger

Thomas Himmler

Bernd Gallenkamp

Mark James Ford

Wahed Ahmed Moradi

Rolf Grosser

Andrew Plant

Stefan Antons

Lars Rodefeld

Martin Littmann

Olaf Hansen

Frank Volz

Holger Weintritt

Dieter Heinz

Jörn Stölting

Stan M Roberts

Guenter Hoemberger

Günter Hömberger

Joerg Schulz

Christa Maria Krüger

Anupma Dhanda

The present invention relates to a process for producing compounds of formula (I) in which R, A, X and Z are as defined in the descriptionby reaction of compounds of formula (II) or salts thereof with 2-chloro-5-chloromethylpyridine in a nonpolar aliphatic or aromatic solvent, preferably in the presence of a phase transfer catalyst.

Process for producing heterocylic compounds

The present invention relates to a process for preparing dithiinetetracarboximides by reaction of succinic monoamides with thionyl chloride, with continuous performance of at least one of the process steps.

Method for producing dithiine tetracarboximides

The present invention relates to a new process for preparing dithiine-tetracarboximides.

Process for preparing dithiine-tetracarboximides

The present invention relates to a process for preparing-alkoxycarbonyl--aminothiophenes of the general formula (I) and/or their hydrochlorides of the formula (I)' in which Rand Rare each as defined in the description, and/or their mono- or bisacetylated or mono- or bisformylated form,by reacting enamines of the formula (II) in which Rand Rare each as defined in the description, and/or their mono- or bisacetylated or mono- or bisformylated form,with a chlorinating agent in the presence of one or more diluents, and also to a process for preparing the compounds of the formula (II).

Process for preparing substituted 2-alkoxycarbonyl-3-aminothiophenes

The present invention relates to a process for preparing compounds of the general formula (I) in which Rand Rare as defined in the descriptionby reacting compounds of the formula (II) in which Rand Rare as defined in the descriptionwith phosgene in the absence of a base and in the presence of one or more diluents and also optionally of a catalyst.

Process for preparing substituted thiophenesulfonyl isocyanates

Novel optically active &#x394;-pyrrolines of the formula (I) in which

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The invention relates to a novel process that makes it possible to epoxidize &#x3b1;,&#x3b2;-unsaturated enones or &#x3b1;,&#x3b2;-unsaturated sulfones with high conversions and enantiomeric excesses in a two-phase system without addition of water in the presence of an organic solvent, a base, an oxidant, a diastereomer- and enantiomer-enriched homo-polyamino acid that has not been separately preactivated as catalyst, and a specific phase-transfer catalyst as cocatalyst.

Polyamino acid-catalyzed process for the enantioselective epoxidation of &#x3b1;,&#x3b2;-unsaturated enones and &#x3b1;,&#x3b2;-unsaturated sulfones

The invention relates to a novel process for preparing 4,6-dichloro-5-pyrimidine.

Method for producing 4,6-dichloro-5-fluoropyrimidine

The invention relates to a novel process that makes it possible to epoxidize &agr;,&bgr;-unsaturated enones or &agr;,&bgr;-unsaturated sulfones with high conversions and enantiomeric excesses in a two-phase system without addition of water in the presence of an organic solvent, a base, an oxidant, a diastereomer- and enantiomer-enriched homo-polyamino acid that has not been separately preactivated as catalyst, and a specific phase-transfer catalyst as cocatalyst.

Polyamino acid-catalyzed process for the enantioselective epoxidation of &agr;, &bgr;-unsaturated enones and &agr;, &bgr;-unsaturated sulfones

The invention relates to a novel process that makes it possible to epoxidize &agr;,&bgr;-unsaturated enones or &agr;,&bgr;-unsaturated sulfones with high conversions and enantiomeric excesses in the presence of a water-soluble base, an oxidant, a diastereomer- and enantiomer-enriched homo-polyamino acid as catalyst, water, an organic solvent that is immiscible or has only limited miscibility with water, and a specific phase-transfer catalyst as cocatalyst.

Polyamino acid-catalyzed process for the enantioselective epoixdation of &agr;,&bgr;-unsaturated enones and &agr;,&bgr;-unsaturated sulfones

The invention relates to a novel process that makes it possible to epoxidize &agr;,&bgr;-unsaturated enones or &agr;,&bgr;-unsaturated sulfones with high conversions and enantiomeric excesses in the presence of a water-soluble base, an oxidant, water, an organic solvent that is immiscible or has only limited miscibility with water, a preactivated diastereomer- and enantiomer-enriched homo-polyamino acid as catalyst, and a specific phase-transfer catalyst as cocatalyst.

Polyamino acid-catalyzed process for the enantioselective epoxidation of &agr;,&bgr;-unsaturated enones and &agr;,&bgr;-unsaturated sulfones

Compositions are disclosed which comprise a homopolyamino acid and stereoisomers thereof adsorbed on an insoluble support material. The compositions are useful as catalysts for the stereoselective epoxidation of olefins.

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Odenthal, Germany

Thomas Geller