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Albrecht Marhold

Reinhard Lantzsch

Hans-Joachim Santel

Dietmar Bielefeldt

Christoph Erdelen

Robert R Schmidt

Klaus Stenzel

Erich Klauke

Ulrike Wachendorff-Neumann

Wilhelm Stendel

Norbert Lui

Lutz Assmann

Reiner Fischer

Klaus Lurssen

Andreas Turberg

Michael Negele

Stefan Bohm

Bernd Baasner

Stefan Dutzmann

Ingeborg Hammann

Gerd Hanssler

Heinz-Wilhelm Dehne

Ernst Kysela

Otto Schallner

Benedikt Becker

Ralf Tiemann

Norbert Mencke

Harry Strang

Bernd Gallenkamp

Wilhelm Sirrenberg

Wilhelm Brandes

Udo Kraatz

Wolfgang Behrenz

Ulrich Heinemann

Hermann Hagemann

Herbert Gayer

Peter Gerdes

Andreas Krebs

Klaus Schaller

Uwe Stelzer

Pieter Ooms

Bernd-Wieland Kruger

Folker Lieb

Martin Kugler

Rudolf Braden

Bernd Alig

Franz Kunisch

Uta Jensen-Korte

Wolfram Andersch

Klaus Konig

Thomas Himmler

Klaus Sasse

Karl-Rudolf Gassen

Markus Dollinger

Jorg Stetter

Roland Andree

Klaus Jelich

Achim Harder

Hermann Uhr

Guido Steffan

Mark-Wilhelm Drewes

Wolfgang Kramer

Bernhard Homeyer

Paul Reinecke

Hans-Ludwig Elbe

Astrid Mauler-Machnik

Rainer A Fuchs

Rainer Gross

Reinhold Gehring

Wilfried Paulus

Martin Bechem

Hans-Joachim Diehr

Matthias Schramm

Franz-Josef Mais

Winfried Lunkenheimer

Hans-Helmut Schwarz

Lothar Rohe

Klaus Naumann

Gerhard Franckowiak

Andrew Plant

Hans-Georg Schmitt

Axel Haberkorn

Karl H Buchel

Kurt Findeisen

Paul-Ernst Frohberger

Engelbert Kuhle

Karl-Erwin Piejko

Heiko Rieck

Gunther Beck

Heinz Forster

Werner Hallenbach

Gerhard Wolfrum

Karl-Heinz Linker

Bernd-Wieland Kr&uuml;ger

Rolf Grosser

Peter Lösel

Wilhelm Haas

Hans-Rudolf Dicke

Gerd H&auml;nssler

Stefan Antons

The invention relates to novel fluorinated achiral 1,3-benzodioxanes of the general formula (I-a) and (I-b) and to the preparation thereof.

Preparation of fluorinated 1,3-benzodioxanes

The invention relates to novel aminophenylmorpholinone derivates (I) in which S represents an optionally substituted morpholinone radical, to a process for their preparation and to their use.

4-aminophenylmorpholinone derivatives and their preparation

The present invention relates to an improved process for preparing ring-fluorinated aromatics of the general formula (I) by a halogen exchange reaction (halex reaction) of a plurality of halogen substituents in one stage in the presence of a catalyst.

Process for preparing ring-fluorinated aromatics

The invention relates to a process for preparing difluorobenzo-1,3-dioxole-5-carboxylic acid and derivatives thereof, and to the use thereof for preparing medicaments and crop protection agents.

Process for preparing difluorobenzo-1,3-dioxole-5-carboxylic acid derivatives

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

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The present invention relates to halogenated 4-aminophenols and to halogenated 4-(phenyidiazenyl)phenols, to a process for their preparation and to the use of the halogenated 4-hydroxyphenols for preparing active ingredients, especially in pharmaceuticals and agrochemicals.

Preparation of halogenated 4-aminophenols

The present invention relates to 3-cyano-2,4,5-trifluorobenzoyl fluoride and to intermediates for its preparation and to the process for the preparation of 3-cyano-2,4,5-trifluoro-benzoyl fluoride, which starts from 5-fluoro-1,3-xylene (VIII); which is bichlorinated in the ring in the presence of a catalyst under ionic conditions to give 2,4-dichloro-5-fluoro-1,3-dimethylbenzene (VII). The latter is chlorinated in the side chains under free-radical conditions to give 2,4-dichloro-5-fluoro-3-dichloromethyl-1-trichloromethylbenzene (VI). The latter is hydrolysed via 2,4-dichloro-5-fluoro-3-dichloromethylbenzoic acid (V), which can be isolated if necessary, to give 2,4-dichloro-5-fluoro-3-formyl-benzoic acid (IV), the aldehyde group of which is reacted to give 2,4-dichloro-5-fluoro-3-N-hydroxyiminomethyl-benzoic acid (III), from which, with simultaneous conversion of the carboxyl group into the chlorocarbonyl group, water is eliminated using an acid chloride to give the nitrile 2,4-dichloro-3-cyano-5-fluoro-benzoyl chloride (II). Finally, the nitrile is subjected to fluorine/chlorine exchange.

3-Cyano-2,4,5-trifluorobenoxyl fluoride and intermediate products for the production thereof

This invention relates to 1,2-di(4-hydroxyaryl)tetrafluoroethanes of the general formula (I) wherein This invention further relates to the preparation of such compounds as well as to precursors and intermediates that can be used in their preparation.

Fluorine-containing bisphenols, their preparation, their precursors and intermediates, and use of the fluorine-containing bisphenols

The invention relates to difluorobenzo-1,3-dioxoles, to a process for their preparation, and to their use for preparing medicaments and crop protection agents.

Difluorobenzo-1,3-dioxoles

2,5-Bisaryl-&#x394;-pyrrolines of the formula (I) in whichArand Arare as defined in the descriptioncan be prepared byreacting aroylpyrrolidinones of the formula (II) in whichArand Arare as defined in the descriptionwith an acid, if appropriate in the presence of a diluent.

The present invention relates to the preparation of nuclear-fluorinated aromatics by reacting, with a fluoride at 40 to 260&#xb0; C., an aromatic compound substituted at the nucleus with halogen that is exchangeable for fluorine in the presence of at least one compound of the formula (I) where A, B, and Anhave the meanings specified in the disclosure.

Process for preparing nuclear-fluorinated aromatics

The present invention relates to pyrazolyalkines and to their use, to a process for preparing them and also to intermediates.

Pyrazolylalkines

The present invention relates to fluorination reagents comprising 1-fluoro-1-aminoolefins and also processes for preparing fluorination reagents comprising 1-fluoro-1-aminoolefins.

Fluoraminoolefins and fluorination reagents which can be prepared therefrom

The invention relates to a process for preparing fluorinated anilines starting from the corresponding chlorinated anilines, and also to the use of the fluorinated anilines.

Preparation of fluorinated anilines

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Leverkusen, Germany

Albrecht Marhold