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Langenfeld, Germany

The present invention relates to a method for preparing (S)-3-N-methylamino-1-(2-thienyl)-1-propanol and salts thereof.


The present invention relates to a method for preparing (S)-3-N-methylamino-1-(2-thienyl)-1-propanol and salts thereof.


The invention relates to a process for the preparation of optionally substituted 4-haloalkyl-biphenyl-2-carboxylic acid esters and to a process for the preparation of corresponding optionally substituted 4-haloalkylbiphenyl-2-carboxylic acids.


Patent
Saltigo GmbH | Date: 2013-05-31

A process is provided which allows the synthesis of a large number of styrene derivatives with formation of CC bonds, with use being possible of economically advantageous substrates, readily available carbon nucleophiles, and both inexpensive and environmentally unproblematic catalyst systems, permitting reaction under mild conditions and a high compatibility with functional groups on the reactants involved.


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.

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