Bayer Aktiengesellschaft

Bernd-Wieland Kr Uger

Ulrike Wachendorff-Neumann

Reiner Fischer

Thomas Bretschneider

Hans-Joachim Santel

Christoph Erdelen

Markus Dollinger

Robert R Schmidt

Klaus L Urssen

Andreas Turberg

Hermann Hagemann

Kozo Shiokawa

Michael Ruther

Christoph Methfessel

Bernard Schmidt

Klaus Tietjen

Hans Joachim Santel

Alfred Maelicke

Fritz Maurer

The invention relates to new 1H-3-aryl-pyrrolidine-2,4-dione derivatives of the formula (I) ##STR1## in which A, B, X, Y and G have the meanings given in the description, to a plurality of processes for their preparation, and to their use as pesticides.

Substituted 1H--3-aryl-pyrrolidine-2,4-dione derivatives

The present invention relates to a new 3-aryl-4-hydroxy-.DELTA..sup.3 -dihydrofuranone derivatives of the general formula (I) ##STR1## in which the radicals A, B, G, X, Y, Z and n have the meaning given in the description, to a plurality of processes for their preparation, and to their use as pesticides.

3-aryl-4-hydroxy-delta3-dihydrofuranone derivatives

Dialkyl-1-H-3-(2,4-dimethylphenyl)-pyrrolidine-2,4-diones of the formula (I) ##STR1## in which A represents alkyl which is optionally substituted by halogen and

Dialkyl-1-H-3-(2,4-dimethylphenyl)-pyrrolidine-2,4-diones, their

There are provided novel substituted 3-aryl-pyrrolidine-2,4-dione derivatives of the formula (I) ##STR1## in which X represents alkyl, halogen or alkoxy,

Substituted 1H-3-aryl-pyrrolidine-2,4-dione derivatives

There have been discovered new bicyclic pyrrolidone compounds such as: ##STR1## which are useful as insecticides, ascaricides and herbicides.

Substituted bicyclic 3-aryl-pyrrolidine-2,4-dione derivatives

The present invention relates to 1-H-3-phenyl-5-cyloalkylpyrrolidine-2,4-diones of the formula (I) ##STR1## in which A represents optionally substituted cycloalkyl and

Substituted 1-H-3-phenyl-5-cycloalkylpyrrolidine-2,4-diones, their

The invention relates to the use of substituted amines for the treatment and prevention of brain function disorders. The substituted amines are suitable on the basis of their properties as agonistic or antagonistic ligands for nicotinergic receptors, in particular for the treatment and prevention of senile and presenile dementia and dementia of the Alzheimer type, and of depressions.

Growing community of inventors

Bergisch Gladbach, Germany

Bernd-Wieland Kr Uger