Evonik Degussa Gmbh

Evonik Industries Ag

Evonik Operations Gmbh

Katrin Marie Dyballa

Robert Franke

Dirk Fridag

Dieter Hess

Frank Geilen

Detlef Selent

Matthias Beller

Ralf Jackstell

Siegfried R Waldvogel

Kaiwu Dong

Armin Börner

Helfried Neumann

Bernd Elsler

Claudia Weilbeer

Armin Boerner

Andrea Christiansen

Thomas Quell

Michael Mirion

Bernd Hannebauer

Guido Stochniol

Mathias Enders

Dietrich Maschmeyer

Stephan Peitz

Helene Reeker

Markus Priske

Bart Hamers

Marc Becker

Markus Schwarz

Hanna Hahn

Galina Morales Torres

Anton Wiebe

Horst-Werner Zanthoff

Hans-Gerd Lueken

Uwe Ernst

Harald Häger

Jörg Schallenberg

Lena Altmann

Jie Liu

Marina Lazar

Reiko Jennerjahn

Hermann-Josef Schulte-Althoff

Haoquan Li

Jie Lui

Xianjie Fang

Li Haoquan

Ralph Jackstell

Samet Gülak

Xiangjie Fang

Armin Böerner

Ivana Fleischer

Lipeng Wu

Sebastian Lips

Benedikt Dahms

Marcus Uhlemann

Helfreid Neumann

Irina Profir

The invention relates to a process comprising the following process steps: where

Process for the alkoxycarbonylation of alcohols

Process comprising the following process steps:

Process for the alkoxycarbonylation of olefins in a medium having a low Br&#xf8;nsted acid concentration

The invention relates to a process comprising the following process steps: whereRis selected from &#x2014;(C-C)-alkyl, &#x2014;O&#x2014;(C-C)-alkyl, &#x2014;O&#x2014;(C-C)-aryl, &#x2014;(C-C)-aryl, &#x2014;(C-C)-cycloalkyl, &#x2014;(C-C)-heterocycloalkyl, &#x2014;(C-C)-heteroaryl;Ris selected from &#x2014;(C-C)-aryl, &#x2014;(C-C)-cycloalkyl, &#x2014;(C-C)-heterocycloalkyl, &#x2014;(C-C)-heteroaryl;Ris &#x2014;(C-C)-heteroaryl;and R, Rand Rmay each independently be substituted by one or more substituents selected from&#x2014;(C-C)-alkyl, &#x2014;(C-C)-cycloalkyl, &#x2014;(C-C)-heterocycloalkyl, &#x2014;O&#x2014;(C-C)-alkyl, &#x2014;O&#x2014;(C-C)-alkyl-(C-C)-aryl, &#x2014;O&#x2014;(C-C)-cycloalkyl, &#x2014;S&#x2014;(C-C)-alkyl, &#x2014;S&#x2014;(C-C)-cycloalkyl, &#x2014;COO&#x2014;(C-C)-alkyl, &#x2014;COO&#x2014;(C-C)-cycloalkyl, &#x2014;CONH&#x2014;(C-C)-alkyl, &#x2014;CONH&#x2014;(C-C)-cycloalkyl, &#x2014;CO&#x2014;(C-C)-alkyl, &#x2014;CO&#x2014;(C-C)-cycloalkyl, &#x2014;N&#x2014;[(C-C)-alkyl], &#x2014;(C-C)-aryl, &#x2014;(C-C)-aryl-(C-C)-alkyl, &#x2014;(C-C)-aryl-O&#x2014;(C-C)-alkyl, &#x2014;(C-C)-heteroaryl, &#x2014;(C-C)-heteroaryl-(C-C)-alkyl, &#x2014;(C-C)-heteroaryl-O&#x2014;(C-C)-alkyl, &#x2014;COOH, &#x2014;OH, &#x2014;SOH, &#x2014;NH, halogen.

Process for the alkoxycarbonylation of ethylenically unsaturated compounds with monophosphine ligands

The invention relates to bisphosphites having 2,4-tert-butylphenyl units and a method for the preparation thereof. Furthermore, the invention relates to the use of the compounds as ligands in a ligand-metal complex. The compound, and also the complex, may be used as a catalytically active composition in hydroformylation reactions.

Bisphosphites having 2,4-tert-butylphenyl units and use thereof as ligands in hydroformylation

Process for the alkoxycarbonylation of ethers

An electrochemical method for C&#x2014;C coupling a phenol and an aniline in a reaction vessel containing a suitable solvent or solvent mixture and a conductive salt to produce biaryls having both hydroxyl and amino functions, wherein the difference in the oxidation potentials &#x394;E of the substrates ranges from 10 mV to 450 mV and the substrate with the highest oxidation potential is in excess, which method dispenses with multi-step syntheses using metallic reagents.

Electrochemical process for coupling of phenol to aniline

The invention relates to compounds of formula (I)  The invention further relates to Pd complexes comprising the compound according to the invention and to the use thereof in alkoxycarbonylation.

Monophosphine compounds and palladium catalysts based thereon for the alkoxycarbonylation of ethylenically unsaturated compounds

An electrochemical method for coupling anilines. When coupling two different anilines, the difference of the oxidation potential of the substrates is in the region of between 10 mV to 450 mV, and the aniline with the highest oxidation potential is added in excess. The method allows biaryldiamines to be electrochemically produced, and can avoid the need for multi-step syntheses using metallic reagents.

Electrochemical coupling of anilines

The production of 2-propylheptanol described here is effected via Rh-catalyzed hydroformylation of C-olefin to afford C-aldehyde, aldol condensation to afford the C-aldehyde and hydrogenation to afford the C-alcohol. The emphasis is on the hydroformylation and the ligand employed therein. The problem addressed by the invention is that of reducing the costs of 2PH production. This problem is solved when a cheaper catalyst system which simultaneously achieves a better regioselectivity is employed in the hydroformylation. This catalyst system contains rhodium as the central atom and is complexed with the ligand (1): 

Economical production of 2-propylheptanol

Disclosed herein are compounds of formula (I): 

Bisphosphites having an unsymmetric outer biphenol unit

Compound of formula (I) where The invention also relates to Pd complexes of the compound according to the invention, and to the use thereof in an alkoxycarbonylation process.

1, 1' -bis(phosphino)ferrocene ligands for alkoxycarbonylation

The invention relates to a compound of formula (I) where  The invention further relates to precursors for preparation of the compound according to the invention, to Pd complexes comprising the compound according to the invention and to the use thereof in alkoxycarbonylation.

Ferrocene-based compounds and palladium catalysts based thereon for the alkoxycarbonylation of ethylenically unsaturated compounds

Novel 2,2'-diaminobiaryls having two secondary amines and an electrochemical process for preparation thereof.

2,2'-diaminobiaryls having two secondary amines

A catalytic method for hydroformylating a cyclooctadiene substrate involving forming a reaction mixture that includes the cyclooctadiene and a precursor of or a transitional metal ligand complex where the ligand has structure (1): Hand CO are fed into the reaction mixture and the mixture is heated to convert the cyclooctadiene into an aldehyde. A preferred ligand is 2-(anthracen-9-yloxy)-4,4,5,5-tetramethyl-1,3,2-dioxaphospholane.

Method for hydroformylating cyclooctadiene using 2-(anthracen-9-yloxy)-4,4,5,5-tetramethyl-1,3,2-dioxaphospholane

A catalytic method for hydroformylating cyclooctadiene substrate involving forming a reaction mixture that includes the cyclooctadiene and a precursor of or a transitional metal ligand complex where the ligand has structure (1): (1) Hand CO are fed into the reaction mixture and the mixture is heated to convert the cyclooctadiene into an aldehyde. A preferred ligand is 4-([1,1':3&#x2032;,1&#x2033;-terphenyl]-2&#x2032;-yloxy)-S-dinaphtho[2,1-d:1&#x2032;,2&#x2032;-f][1,3,2]dioxaphosphepine.

Method for hydroformylating cyclooctadiene using 4-([1,1':3&#x2032;,1&#x2033;-terphenyl]-2&#x2032;-yloxy)-S-dinaphtho[2,1-D:1&#x2032;,2&#x2032;-F][1,3,2]dioxaphosphepine

Growing community of inventors

Recklinghausen, Germany

Katrin Marie Dyballa