Bayer Aktiengesellschaft

Wacker-chemie Gmbh

Dr. Madaus & Co.

Madaus Gmbh & Co.

Shell Oil Corporation

Michael Hanack

Klaus Gorler

Lakshmina R Subramanian

Gunter Krumbiegel

Gunter Hieber

Josephina C Brokken-Zijp

Leonard E Gerards

Theodor Stoll

The present invention relates to compounds of formula (I): ##STR1## in which A represents the same or different heteroaryl radicals and substituted heteroaryl radicals; B represents dihydroheteroarenediylidene radicals or substituted dihydroheteroarenediylidene radicals or radicals obtainable from these radicals by oxidation on at least one hetero atom; and R' and R' represent the same or different radicals, in particular hydrogen atoms, C.sub.1 - to C.sub.4 -alkyl radicals or radicals A, or cyano radicals, halogen atoms, radicals of the formula --COOR, or --OR, wherein R is a C.sub.1 - to C.sub.4 -alkyl radical, processes for preparing the same and polymers prepared therefrom.

Heteroarylenemethines and polymers prepared therefrom

A process for preparing an electrically conductive polymer composition which comprises preparing a blend of a solution of an intrinsically conductive polymer and a thermosetting, thermoplastic or elastomeric polymer and removing the solvent, the intrinsically conductive polymer being employed in a weight ratio to the second polymer of from about 0.005:1 to 3:1, the solution having a solids content of from about 2 to 75 weight percent, and the intrinsically conductive polymer being an electrically conductive, stacked macrocyclic metal complex polymer based upon porphyrin or a derivative thereof which comprises an organic bridging ligand containing conjugated pi-electrons allowing delocalization along the polymer chain and in which the metal atom is Fe, R, Rh, Co, Mn or Cr.

Conductive polymer compositions

The present invention provides compounds of the general formula: ##STR1## where R.sub.1 is a hydrogen atom or a methoxy or ethoxy radical and R.sub.2 and R.sub.3 are hydrogen atoms or R.sub.2 and R.sub.3 together represent an aromatic carbon-carbon bond and R.sub.1 is a hydrogen atom, a hydroxyl group or an ethoxy radical; and the pharmaceutically acceptable salts thereof.

Methylendioxyphenathrene and stilben derivatives, process for the

The present invention provides compounds of the general formula: ##STR1## wherein R.sub.1 is a hydrogen atom or a methoxy or ethoxy radical and R.sub.2 and R.sub.3 are hydrogen atoms or R.sub.2 and R.sub.3 together represent an aromatic carbon-carbon bond and R.sub.1 is a hydrogen atom, a hydroxyl group or an ethoxy radical; and the pharmaceutically acceptable salts thereof. The present invention also provides processes for the preparation of these compounds and pharmaceutical compositions containing them, as well as their use in therapy.

A perfluoroalkane-sulphinic acid of the formula R.sub.F --SO.sub.2 H is reacted with a diene at -20.degree. to +20.degree. C. to form the new intermediate ##STR1## in which R.sup.3 -R.sup.8 are hydrogen or various organic radicals or double bonds, and that is reacted with a .beta.,.beta.-dimethyl-acrylic acid derivative of the formula ##STR2## in the presence of a base at a temperature between about -20.degree. and +30.degree. C. to produce a cyclopropane carboxylic acid derivative of the formula ##STR3## in which Z is alkoxycarbonyl or cyano and R.sup.1 and R.sup.2 are hydrogen or various organic radicals. The products are known intermediates for insecticides.

Growing community of inventors

Tubingen, Germany

Michael Hanack