Hoechst Aktiengesellschaft

Hoechst Schering Agrevo Gmbh

Aventis Research & Technologies Gmbh & Co Kg

Solvay Fluor Und Derivate Gmbh

Hoechst Research & Technology Gmbh & Co. Kg

Solvay Fluor Gmbh

Sergej Pasenok

Wolfgang Appel

Werner Bonin

Wolfgang Schaper

Ulrich Sanft

Thomas Wessel

Gerhard Krautstrunk

Martin Winter

Juergen Otto Besenhard

Lars Henning Lie

Werner Knauf

Ralf Braun

Ralf Pfirmann

Manfred Kern

Harald Jakobi

Oswald Ort

Adolf Heinz Linkies

Dieter Bernd Reuschling

Hans H Schubert

Thomas Schach

Ivan Cabrera

Herbert Stark

Alexander Kolomeitsev

Martin M&auml;rkl

Electrolyte system for lithium batteries, the use thereof, and method for enhancing the safety of lithium batteries

The present invention concerns a method for producing esters of 2-fluoro-iso butyric acid in which the corresponding 2-hydroxyisobutyric acid ester is reacted with hydrofluoric acid.

Method for producing 2-fluoro-isobutyric acid esters

Substituted cyclohexylaminopyrimidines

Process for preparing fluorine-containing compounds

Method for producing compounds containing fluorine, in particular

Electrolyte systems for lithium batteries of increased safety comprise at least one lithium-containing conducting salt and at least one electrolyte fluid and, according to the invention, are defined by at least one partially fluorinated carbamate of general formula (I) ##STR1## where R.sup.1 and R.sup.2 independently of one another or identical or different, linear C.sub.1 -C.sub.6 -alkyl, branched C.sub.3 -C.sub.6 -alkyl, C.sub.3 -C.sub.7 -cycloalkyl or R.sup.1 and R.sup.2 directly or via one or more additional nitrogen and/or oxygen atoms are linked to form a ring having from 3 to 7 ring members, and the additional nitrogen atoms present in the ring being substituted with C.sub.1 -C.sub.3 -alkyl and the ring carbon atoms optionally carrying C.sub.1 -C.sub.3 -alkyl, with the option of one or more hydrogen atoms in the radicals R.sup.1 and R.sup.2 being replaced by fluorine atoms, R.sup.3 is a partially fluorinated or perfluorinated straight-chain alkyl group having from 1 to 6 carbon atoms, is a partially fluorinated or perfluorinated branched alkyl group having from 3 to 6 carbon atoms or a partially fluorinated cycloalkyl group having from 3 to 7 carbon atoms, which optionally be monosubstituted or polysubstituted with C.sub.1 -C.sub.6 -alkyl.

Electrolyte system for lithium batteries and use of said system, and

Catalyst comprising an amidophosphonium salt for halex reactions

The present invention relates to novel stabilized phosphorous ylides and processes for their preparation. More particularly, the present invention relates to a process for substituting the carbonyl oxygen of 2-formyl- or 2-oxoalkylidenetriphenyl-phosphoranes (OATP) by other stabilizing groups to form novel compounds having an increased tendency to form complexes or compounds which absorb in the visible region of the spectrum. The compounds according to the present invention are

Process for the preparation of novel stabilized phosphorus ylides

Cyclohexylamino and cycloalkoxy nitrogen heterocycles, processes for their preparation, and their use as pesticides and fungicides. The invention relates to compounds of the formula

Cyclohexylamino and cycloalkoxy nitrogen heterocycles, processes for

A process for the preparation of compounds of the formula (1) in which R.sup.1, R.sup.2 and R.sup.3 are as defined in the specification, which includes reacting alcohols or carboxylic acids of the formula (2) in which R.sup.1, R.sup.2 and R.sup.3 are as defined in the specification, with a fluorinating agent of the formula (3) as defined in the specification.

Process for the selective preparation of monofluoro derivatives

It is known to prepare fluorinated aromatic compounds of the formula I ##STR1## in which X, Y and Z can have the meaning specified in the description, by reacting aromatic compounds of the formula II ##STR2## in which X, Y and Z have the meaning specified for formula I, with fluorine in a reaction medium. According to the invention, the direct fluorination is carried out in a reaction medium containing polyfluoroalkanesulfonic acids of the formula III

Process for preparing fluorinated aromatics

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Kelkheim, Germany

Sergej Pasenok