Hoechst Aktiengesellschaft

Degussa Aktiengesellschaft

Aventis Research & Technologies Gmbh & Co Kg

Targor Gmbh

Robert Boschgmbh

Evonik Degussa Gmbh

Bayer Aktiengesellschaft

Zeon Corporation

Celanese Gmbh

Aventis Corporation Gmbh

Tangor Gmbh

Aventis Research & Technology Deutschland

Hoechst Aktiengeschaft

Wolfgang Anton Herrmann

Helmut Bahrmann

Rainer Manetsberger

Herbert Riepl

Thomas Weskamp

Christian Kohlpaintner

Matthias Beller

Richard Walter Fischer

Andreas Winter

Walter Spaleck

Wolfgang Schattenmann

Juergen Rohrmann

Guido Albanese

Christian Kocher

Martin Antberg

Peter Lappe

Frank Kuber

Hans-Friedrich Herrmann

Jurgen Kulpe

Jakob Fischer

Christoph Brossmer

Markus Morawietz

Martina Elison

Gerhard Lobmaier

Volker Dolle

Jurgen Rohrmann

Werner Konkol

Roland Kratzer

Hartmut Fischer

Frank Kueber

Werner Wagner

Rolf Peter Schulz

Florian J Kohl

Jurgen Kellner

Claus Peter Reisinger

Uwe Dingerdissen

Yasuo Tsunogae

Ahmed M Tafesh

Michael Aulbach

Thomas Riermeier

Holger Geissler

Michael Riedel

Thomas Weller

Alexandra Jacobs

Bernd Scharbert

Masato Sakamoto

Shintaro Ikeda

Klaus Bergrath

Joachim Haider

Seiji Okada

Georg Weichselbaumer

Waldemar Adam

Marc Morawietz

Joao Domingos Galamba Correia

Karl Oefele

Lukas Goossen

Karin Denk

Dieter M Fritz-Meyer-Weg

Josef G Kuchler

Ursula Volkhardt

Christine Schwer

Rochus Schmid

Masao Shimizu

Chantu R Saha-Moller

Jianhua Lin

Joao D Correia

Karl Ofele

The invention relates to a complex of ruthenium of the structural formula I,  The invention further relates to a process for preparing acyclic olefins having two or more carbon atoms or/and cyclic olefins having four or more carbon atoms from acyclic olefins having two or more carbon atoms or/and from cyclic olefins having four or more carbon atoms by an olefin metathesis reaction in the presence of at least one catalyst, wherein a complex is used as catalyst and R', R&#x2032;, R&#x2032;and R&#x2032;are hydrogen or/and hydrocarbon groups.

Alkylidene complexes of ruthenium containing N-heterocyclic carbene ligands; use as highly active, selective catalysts for olefin metathesis

The invention relates to a complex compound of ruthenium of the general structural formula I  The invention relates also to a process for the preparation of acyclic olefins having two or more carbon atoms or/and of cyclic olefins having four or more carbon atoms from acyclic olefins having two or more carbon atoms or/and from cyclic olefins having four or more carbon atoms by olefin metathesis reaction in the presence of at least one catalyst, wherein such a complex compound is used as catalyst and wherein R', R&#x2032;, R&#x2032;and R&#x2032;hydrogen or/and hydrocarbon groups.

The invention relates to a complex of ruthenium of the structural formula I, where Xand Xare identical or different and are each an anionic ligand,Rand Rare identical or different and can also contain a ring, and Rand Rare each hydrogen or/and a hydrocarbon group,the ligand Lis an N-heterocyclic carbene and the ligand Lis an uncharged electron donor, in particular an N-heterocyclic carbene or an amine, imine, phosphine, phosphate, stibine, arsine, carbonyl compound, carboxyl compound, nitrile, alcohol, ether, thiol or thioether,where R, R, Rand Rare hydrogen or/and hydrocarbon groups. The invention further relates to a process for preparing acyclic olefins having two or more carbon atoms or/and cyclic olefins having four or more carbon atoms from acyclic olefins having two or more carbon atoms or/and from cyclic olefins having four or more carbon atoms by an olefin metathesis reaction in the presence of at least one catalyst, wherein a complex is used as catalyst and R, R, Rand Rare hydrogen or/and hydrocarbon groups.

Alkylidene complexes of ruthenium containing N-heterocyclic carbene ligands and their use as highly active, selective catalysts for olefin metathesis The invention relates to a complex of ruthenium of the structural formula I, where Xand Xare identical or different and are each an anionic ligand, The invention further relates to a process for preparing acyclic olefins having two or more carbon atoms or/and cyclic olefins having four or more carbon atoms from acyclic olefins having two or more carbon atoms or/and from cyclic olefins having four or more carbon atoms by an olefin metathesis reaction in the presence of at least one catalyst, wherein a complex is used as catalyst and R', R&#x2032;, R&#x2032;and R&#x2032;are hydrogen or/and hydrocarbon groups.

The present invention relates to ruthenium complex compound wherein a heteroatom-containing carbene compound having a six-membered ring structure is bonded to ruthenium and a process for the preparation thereof; a process for producing ring-opened cyclic olefin polymer by subjecting a cyclic olefin to ring-opening metathesis polymerization in the presence of such a ruthenium complex compound; and a process for producing hydrogenated product of ring-opened cyclic olefin polymers by hydrogenating the carbon-carbon double bonds of the above ring-opened polymers. The invention gives hydrogenated product of ring-opened cyclic olefin polymers having physical properties different from those of hydrogenated product of ring-opened polymers of the prior art. Particularly, the use of dicyclopentadiene can give a hydrogenated product of ring-opened cyclic olefin polymer excellent in heat resistance, and this product can be advantageously used as parts or formed products for medical appliances or electrical components.

Ruthenium complexes, process for preparation thereof, and processes for producing open-ring polymer of cycloolefins and hydrogenation products thereof by using the complex as catalyst

The invention relates to novel transition metal complexes containing at least one diaminocarbene ligand, to processes for preparing these transition metal complexes and to their use as catalysts in organic reactions.

Transition metal complexes with diaminocarbene ligands and their use in reactions catalyzed by transition metals

A method and a device for controlling a wiper motor of a motor vehicle. A rain sensor sends signals to a control device and the wiper motor is switched off when a first threshold is exceeded or is not reached. After a defined time period after switching off the wiper motor, the wiper motor is switched on in order to remove residual wetness when the signals exceed or drop below a lower, second threshold.

Method of controlling a wiper motor

A method and a device are proposed for the automatic control of illumination devices ( ), having a control element ( ) which acts on illumination devices ( ) and which is calibrated at time intervals (T), for which various calibration parameters are taken into account.

Method and device for the automatic control of illumination devices

Homobimetallic and heterobimetallic alkylidene complexes of ruthenium containing N-heterocyclic carbene ligands

Process for preparing acyclic olefins using homobimetallic and heterobimetallic alkylidene complexes of ruthenium containing N-heterocyclic carbene ligands

Method for catalytic and selective oxidation of aromatic compounds

The present invention provides a process for the epoxidation of alkenes of the formula (1)

Method for producing epoxides through olefin oxidation with air or oxygen

Process for selective catalytic oxidation of olefins to aldehydes, ketones with cleavage of C&equals;C bonds

Catalysts for olefin selective epoxidation with atmospheric oxygen

Growing community of inventors

Freising, Germany

Wolfgang Anton Herrmann