Saltigo GmbH

Langenfeld, Germany

Saltigo GmbH

Langenfeld, Germany

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Patent
Saltigo GmbH | Date: 2017-04-26

The invention relates to a method for producing 2-halogen-acrylic acid esters from 2-hydroxymethyl- or 2-halogen-methyl- or 2-chlorosulfinyloxymethyl-2-halogen-malonic acid diesters. The invention further relates to 2-halogen-methyl-2-halogen-malonic acid diesters or 2-chlorosulfinyloxymethyl-2-halogen-malonic acid diesters of a new type, which can be used to produce the 2-halogen-acrylic acid esters.


Patent
Saltigo Gmbh | Date: 2015-06-17

The present invention relates to a process for preparing 2-haloacrylic esters from 2-hydroxymethyl- or 2-halomethyl- or 2-chlorosulfinyloxymethyl-2-halomalonic diesters. The invention further provides novel 2-halomethyl-2-halomalonic diesters or 2-chlorosulfinyloxymethyl-2-halomalonic diesters which can be used for preparation of the 2-haloacrylic esters.


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


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.


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.


A process for preparing azomethines of the general formula (V) where R is an optionally substituted carbocyclic aromatic radical having 6 to 24 carbon atoms or an optionally substituted alkyl radical or an optionally substituted heteroaromatic radical having 5 to 24 carbon atoms, and R^(1 )is an optionally substituted carbocyclic aromatic radical having 6 to 24 carbon atoms or an optionally substituted heteroaromatic radical having 5 to 24 carbon atoms, R^(2 )is hydrogen or an optionally substituted carbocyclic aromatic radical having 6 to 24 carbon atoms or an optionally substituted alkyl radical or an optionally substituted cycloalkyl radical N or an optionally substituted heteroaromatic radical having 5 to 24 carbon atoms by reacting alpha-oxo carboxylates of the general formula (I) where n is a number in the range from 1 to 6, M^((n+) )is a cation, with aryl bromides of the general formula (IV) and amines of the general formula (II) via the alpha-iminocarboxylate intermediate of the general formula (III), in the presence of two transition metals or compounds thereof as catalyst, is described.


The present invention relates to a process for the production of triffluoromethylated unsubstituted or substituted aryl or heteroaryl compounds which comprises reacting an unsubstituted or substituted aryl or heteroaryl halide with a trifluoroacetate of formula (I) or (II),^(1) is hydrogen or a C_(1)-C_(5) alkyl group and M an alkali metal or an ammonium ion, in the presence of and an anorganic halogenide salt or a trifluoroacetacid salt as activator compound and a catalytic combination of a copper salt with a monodentate, bidentate or tridentate aromatic or aliphatic amine or pyridine ligand.


The present invention relates to a process for the production of triffluoromethylated unsubstituted or substituted aryl or heteroaryl compounds which comprises reacting an unsubstituted or substituted aryl or heteroaryl halide with a trifluoroacetate of formula (I) or (II),^(1) is hydrogen or a C_(1)-C_(5) alkyl group and M an alkali metal or an ammonium ion, in the presence of a copper salt as catalyst and an anorganic halogenide salt or a trifluoroacetacid salt as activator compound.


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


A process for preparing azomethines of the general formula (V)R is an optionally substituted carbocyclic aromatic radical having 6 to 24 carbon atoms or an optionally substituted alkyl radical or an optionally substituted heteroaromatic radical having 5 to 24 carbon atoms, andR^(1) is an optionally substituted carbocyclic aromatic radical having 6 to 24 carbon atoms or an optionally substituted heteroaromatic radical having 5 to 24 carbon atoms,R^(2) is hydrogen or an optionally substituted carbocyclic aromatic radical having 6 to 24 carbon atoms or an optionally substituted alkyl radical or an optionally substituted cycloalkyl radical or an optionally substituted heteroaromatic radical having 5 to 24 carbon atomsby reacting alpha-oxo carboxylates of the general formula (I)n is a number in the range from 1 to 6,M^((n+)) is a cation,with aryl bromides of the general formula (IV) R^(1)-Br(IV)and amines of the general formula (II) R^(2)-NH_(2)(II)via the alpha-iminocarboxylate intermediate of the general formula (III),

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