Saltigo Gmbh

Saltigogmbh

Nikolaus Müller

Matthias Beller

Wolfgang Mägerlein

Alexander Zapf

Thomas Schareina

Paul Wagner

Reinhard Langer

Lars Rodefeld

Ulrich Notheis

Andreas Job

Marielouise Schneider

Alain Cotté

Burkhard Koch

Heinrich Grzinia

Anke Beckmann

Matthias Gotta

Alexsander Zapf

What are described are insect- and mite-repellent compositions comprising at least 2 enantiomers selected from the group of 1-[(S)-sec-butyloxycarbonyl]-2-(S)-(2-hydroxyethyl)piperidine (referred to hereinafter as S,S), 1-[(R)-sec-butyloxycarbonyl]-2-(R)-(+)-(2-hydroxyethyl)piperidine (referred to hereinafter as R,R), 1-[(S)-sec-butoxycarbonyl]-2-(R)-(+)-(2-hydroxyethyl)piperidine (referred to hereinafter as S,R), 1-[(R)-sec-butyloxycarbonyl]-2-(S)-(+)-(2-hydroxyethyl)piperidine (referred to hereinafter as R,S), excluding the racemate mixture thereof, a process for preparation thereof and the use thereof in insect- and mite-repellent formulations.

Synergistically active mixtures of &#x3b1;,&#x3c9;-amino alcohol enantiomers, preparation thereof and use thereof in insect- and mite-repellent formulations

The present invention relates to the industrial production of vinylene carbonate (VC) by elimination of hydrogen chloride from chloroethylene glycol carbonate (CGC) with tertiary amines in the absence of relatively large amounts of additional solvent.

Process for producing vinylene carbonate

A process is described for catalytically preparing optionally substituted aromatic or heteroaromatic nitrites of the general formula (I)Ar&#x2014;CN&#x2003;&#x2003;(I)by reacting the corresponding aryl halides of the general formula (II)Ar&#x2014;X&#x2003;&#x2003;(II)in which where

Process for catalytically preparing aromatic or heteroaromatic nitriles

The present invention relates to a process for preparing optionally substituted aromatic or heteroaromatic nitriles starting from haloaromatics. These are reacted in a copper-catalysed reaction with potassium hexacyanoferrate(II) or potassium hexacyanoferrate(III) in the presence of heteroaromatic amines.

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Monheim, Germany

Nikolaus Müller