Evonik Degussa Gmbh

Evonik Operations Gmbh

Basf Aktiengesellschaft

Degussa Aktiengesellschaft

Thyssen Krupp Ag

Thyssenkrupp Industrial Solutions Ag

Oxeno Olefinchemie Gmbh

Thyssenkrupp Uhde Gmbh

Ratiopharm Gmbh

Evonik Oxeno Gmbh

Evonik Oxeno Gmbh & Co. Kg

Armin Börner

Robert Franke

Karlheinz Drauz

Detlef Selent

Katrin Marie Dyballa

Dirk Fridag

Claudia Weilbeer

Dieter Hess

Frank Geilen

Renat Kadyrov

Thomas Riermeier

Anna Chiara Sale

Klaus-Diether Wiese

Uwe Dingerdissen

Rainer Stürmer

Cornelia Borgmann

Peter Kucmierczyk

Johannes Knossalla

Axel Monsees

Alexander Brächer

Wilfried Büschken

Bart Hamers

Andrea Christiansen

Ana Markovic

Marc Becker

Burkard Kreidler

Jens Holz

Harald Häger

Zeljko Knez

Joachim Schulze

Vitali Tararov

Wolfgang Tietz

Gerd König

Gudrun Voss

Juan Almena

Christoph Kubis

Carsten A Schneider

Galina Morales Torres

Baoxin Zhang

Reinhard Schmutzler

Ion Neda

Christine Kunze

Karl-Josef Haack

Kerstin Romeike

Xiao-Feng Wu

Markus Fritsch

Ivan Shuklov

Klaus Kühlein

Gudrun Wenzel

Yang Yuan

Marcus Uhlemann

Burkhard Kreidler

Benjamin Schäffner

Process for the hydroformylation of olefins using a cobalt precatalyst and a diphosphine ligand.

Process for the hydroformylation of olefins using a cobalt precatalyst and a diphosphine ligand

Bisphosphite ligands based on benzopinacol with an open outer unit, and the use thereof in hydroformylation.

Bisphosphite ligands based on benzopinacol with an open outer unit

New diphosphites based on cis-butene-1,4-diol.

Diphosphites based on cis-butene-1,4-diol

Process for the hydroformylation of olefins using a cobalt pre-catalyst.

Process for the hydroformylation of olefins using a cobalt pre-catalyst

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

Novel heterocyclic selenamonophosphites protected on the hydroxyl group, processes for preparation thereof and the use thereof as ligand.

Heterocyclic selenamonophosphites protected on a hydroxyl group and processes for preparation thereof

Novel heterocyclic selenabisphosphites, process for preparation thereof and use thereof as ligand unit for preparing ligands for use in complexes.

Heterocyclic selenabisphosphites and process for preparation thereof

Novel heterocyclic selenaphosphites, process for preparation thereof and use thereof as ligand for employment in complexes.

Heterocyclic selenaphosphites and process for preparation thereof

Bisphosphites having an unsymmetric central biaryl unit.

Bisphosphites having an unsymmetric central biaryl unit

The disclosed methods for preparing and isolating carboxylic esters ensure a high product purity and minimize technical complexity. These methods are based on the reaction of a carboxylic acid with an alcohol in an aqueous medium. In some examples, the alcohol is used both for the esterification and for the precipitation of the salts, preferably ammonium salts, formed in the synthesis.

Process for the preparation and isolation of carboxylic esters

The invention relates to Rh, Ru, Co and Ir complexes comprising bidentate diphosphoramidites as ligands and to the use thereof as catalysts for the hydroformylation of olefins. The invention also relates to a process for preparing an aldehyde from an olefin using the complexes or ligands mentioned.

Bidentate diphosphoramidites with a piperazine group as ligands for hydroformylation

Bidentate diphosphoramidites with a homopiperazine group as ligands for hydroformylation

Novel heterocyclic selenophosphites, method for preparation thereof and use thereof as ligand unit for preparing ligands for use in complexes.

Heterocyclic selenophosphites and method for the preparation thereof

Novel organodiaryl selenoxides and processes for preparation thereof, and use thereof as ligand in complexes.

Organodiaryl selenoxides and process for preparation thereof

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Rostock, Germany

Armin Börner