Saltigo Gmbh

Lanxess Deutschland Gmbh

Saitigo Gmbh

Matthias Gotta

Matthias Beller

Alexander Zapf

Waldemar Czaplik

Thomas Schareina

Bernd Wilhelm Lehnemann

Paul Naab

Guido Giffels

Lukas J Goossen

Florian Rampf

Alain Cotté

Felix Rudolphi

Björn Schlummer

Mark Sundermeier

Axel Von Wangelin Jacobi

Samet Guelak

Axel Jacobi Von Wangelin

Xiao-Feng Wu

Nikolaus Muller

Matthias Mayer

Christoph Oppel

Nuria Rodriguez Garrido

Elmar Lackner

What is described is a process for preparing organic compounds of the general formula (I)R&#x2014;R'&#x2003;&#x2003;(I)by converting a corresponding compound of the general formula (II)R&#x2014;X&#x2003;&#x2003;(II)in which characterized in that the reaction of (III) with (IV) is performed in the presence of

Method for allylating and vinylating aryl, heteroaryl, alkyl, and alkene halogenides using transition metal catalysis

A process is provided which allows the synthesis of a large number of styrene derivatives with formation of C&#x2014;C 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.

Process for preparing styrene derivatives

The present invention relates to a process for the production of trifluoromethylated 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), wherein Ris hydrogen or a C-Calkyl 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.

Copper-catalysed process for the production of substituted or unsubstituted trifluormethylated aryl and heteroaryl compounds

Described is a process for preparing diaryl ethers of the formula (I)Ar&#x2014;O&#x2014;Ar'&#x2003;&#x2003;(I) In which Ar is an aryl or substituted aryl group and Ar&#x2032; is an aryl, substituted aryl, heteroaryl or substituted heteroaryl group, by reacting an aryl of formula (II) or a aryloxy salt of formula (III)Ar&#x2014;OH&#x2003;&#x2003;(II)Ar&#x2014;OR&#x2003;&#x2003;(III) In which Ar has the same meaning as in formula (I) and R is an alkali metal, with an aryl or heteroaryl bromide of formula (IV)Ar&#x2032;&#x2014;Br&#x2003;&#x2003;(IV) In which Ar&#x2032; has the same meaning as in formula (I), characterized in that the reaction is carried out in the presence of a copper(I)salt and a 1-substituted imidazole as catalyst system.

Process for the catalytic synthesis of diaryl ethers

This invention relates to a process for preparing functionalized aryl, heteroaryl, cycloalkenyl, or alkenyl compounds, by a transition-metal-catalyzed cross-coupling reaction of a substituted or unsubstituted aryl-X, heteroaryl-X, cycloalkenyl-X or alkenyl-X compound with an alkyl, alkenyl, cycloalkyl or cycloalkenyl halide, where X is a halide, diazonium, tosylate (p-toluenesulphonate), mesylate (methanesulphonate) or triflate (trifluoromethanesulphonate) leaving group.

Process for preparing organic compounds by a transition metal-catalysed cross-coupling reaction of an aryl-X, heteroaryl-X, cycloalkenyl-X or alkenyl-X compound with an alkyl, alkenyl, cycloalkyl or cycloalkenyl halide

A process for preparing ketones of the general formula (III) where whereinn and m is a number in the range from 1 to 6,Mis a cation, andR has the meaning indicated for formula (III),with aryl bromides of the general formula (II)R&#x2014;Br&#x2003;&#x2003;(II)whereRhas the meaning indicated for formula (III),in the presence of two transition metals or compounds thereof as catalyst, is described.

Process for preparing ketones from alpha-oxo carboxylates and aryl bromides

The present invention relates to a process for preparing optionally substituted arylsulphonic anhydrides of the general formula (I) 

Process for preparing optionally substituted arylsulphonic anhydrides

Growing community of inventors

Burscheid, Germany

Matthias Gotta