Hoechst Aktiengesellschaft

Celanese Chemicals Europe Gmbh

Ruhrchemie Aktiengesellschaft

Hoeschst Aktiengesellschaft

Oxea Deutschland Gmbh

Ruhrchemie Aktiengesekkschaft

Oxea Corporation

Peter Lappe

Helmut Bahrmann

Helmut Springer

Ernst Wiebus

Thomas Muller

Peter Heymanns

Jurgen Weber

Wolfgang Greb

Jurgen Szameitat

Rainer Lukas

Wolfgang Anton Herrmann

Boy Cornils

Rainer Manetsberger

Heinz Kalbfell

Kurt Schalapski

Christian Kohlpaintner

Wilhelm Gick

Wolfgang Zgorzelski

Ludger Bexten

Wolfgang Lipps

Franz Thonnessen

Georg Dambkes

Dieter Kupies

Bernhard Fell

Wolfgang Hofs

Harald Kappesser

Werner De Win

Carl Dieter Frohning

Gregor Deckers

Klaus Bergrath

Guido Albanese

Klaus Schmid

Horst Scholz

Wilfried Fenske

Wolfgang Dukat

Edgar Storm

Dieter Frohning

Roderich Gartner

Norbert Breitkopf

Wolfgang Nierhaus

Peter Hermanns

J&uuml;rgen Szameitat

Wolfgana Greb

Thomas M&uuml;ller

Eberhard Von Mulmann

J Urgen Szameitat

Thomas M Uller

Subba Kanagasabapathy

Zhigao Xia

Christoph Balzarek

A process for preparing 3(4),8(9)-bis(aminomethyl)tricycle-[5.2.1.0]decane by hydroformylating dicyclopentadiene with subsequent reductive amination wherein the hydroformylation of dicyclopentadiene is carried out in two stages, and, in a first hydroformylation stage, the reaction is effected in a heterogeneous reaction system using an aqueous solution of transition metal compounds, containing water-soluble organic phosphorus (III) compounds in complex-bound form, of group VIII of the Periodic Table to give 8(9)-formyltricyclo[5.2.1.0]dec-3-ene, and, in a second hydroformylation stage, the thus obtained 8(9)-formyltricyclo[5.2.1.0]dec-3-ene is converted, in a homogeneous organic phase in the presence of transition metal compounds of group VIII of the Periodic Table of the Elements to 3(4),8(9)-bisformyltricyclo[5.2.1.0]decane

Process for preparing TCD-diamine

A carboxylic ester of the formula in which A is &#x2014;(CH)&#x2014; where x=1&#x2013;10, a process for its preparation which esters are useful lubricated and plasticizers for high molecular polymeric thermoplastics.

Carboxylic esters based on limonene alcohol [3-(4'-methylcyclohexyl)butanol] and having a low melting point

A process for selectively hydroformylating dicyclopentadiene to 8(9)-formyltricyclo-[5.2.1.0]dec-3-ene in a heterogeneous reaction system using an aqueous solution of transition metal compounds, containing water-soluble organic phosphorus(III) compounds in complex-bound form, of group VIII of the Periodic Table of the Elements, wherein the water-soluble organic phosphorus(III) compounds are alkali metal or alkaline earth metal salts of sulfonated arylphosphines and aryldiphosphines.

Process for preparing TCD-monenal

A process for purifying alicyclic alcohols by distillation, wherein the alicyclic alcohols are distilled in the presence of from 1 to 550 ppm of acidic compounds.

Process for purifying alicyclic alcohols

A process for preparing 3(4),8(9)-bisformyltricyclo[5.2.1.0]decane by hydroformylating dicyclopentadiene with subsequent distillation wherein the hydroformylation of dicyclopentadiene is carried out in two stages, and, in the first hydroformylation stage, the reaction is effected in a heterogeneous reaction system using an aqueous solution of transition metal compounds, containing water-soluble organic phosphorus (III) compounds in complex-bound form, of group VIII of the Period Table of the Elements to give 8(9)-bisformyltricyclo[5.2.1.0]dec-3-ene, and, in a second hydroformylation stage, the thus obtained 8(9)-bisformyltricyclo[5.2.1.0]dec-3-ene is converted, in homogeneous organic phase in the presence of transition metal compounds of group VIII of the Periodic Table of the Elements to 3(4),8(9)-bisformyltricyclo[5.2.1.0]decane.

Process for preparing TCD-dialdehyde

The present invention relates to a process for preparing N-methyldialkyl-amines by reacting secondary dialkylamines with formaldehyde at a temperature of from 100 to 200&#xb0; C., by using from 1.5 to 3 mol of formaldehyde per mole of secondary dialkylamine and degassing the resulting reaction product, removing the aqueous phase and distilling the organic phase.

Process for preparing N-methyldialkylamines from secondary dialkylamines and formaldehyde

A process for preparing 3(4),8(9)-dihydroxymethyltricyclo[5.2.1.0]decane by hydroformylating dicyclopentadiene with subsequent distillation wherein the hydroformylation of dicyclopentadiene is carried out in two stages, and, in a first hydroformylation stage, the reaction is effected in a heterogeneous reaction system using an aqueous solution of transition metal compounds, containing water-soluble organic phosphorus (III) compounds in complex-bound form, of group VIII of the Periodic Table to give 8(9)-formyltricyclo[5.2.1.0]dec-3-ene, and, in a second hydroformylation stage, the thus obtained 8(9)-formyltricyclo[5.2.1.0]dec-3-ene is converted, in homogeneous organic phase in the presence of transition metal compounds of group VIII of the Periodic Table of the Elements to 3(4),8(9)-bisformyltricyclo[5.2.1.0]decane.

Process for preparing TCD-alcohol DM

The invention relates to a method for the synthesis of aliphatic carboxylic acids by the catalytic oxidation of aldehydes with oxygen, or oxygen-containing gas mixtures. Metals of groups 5 11 of the periodic table of elements, or the compounds thereof are used as catalyst, in amounts of up to 5 ppm, based upon the amount of aldehyde used.

Method for the synthesis of aliphatic carboxylic acids from aldehydes

Mixtures of isomeric nonanols and decanols are obtained by joint aldol condensation of n-butanal and pentanals, and up to 1% by weight of 3-methylbutanal, hydrogenation of the aldol condensation product to the corresponding saturated alcohols, and separation from the reaction mixture of the components boiling at temperatures lower than those of the nonanols and decanols. The pentanals are mixtures of 60 to 90% by weight of n-pentanal and 10 to 40% by weight of 2-methylbutanal. The alcohol mixture is especially suitable for preparing ester plasticizers.

Isomeric nonanols and decanols, their preparation, phthalic esters obtained therefrom and their use as plasticizers

Process for the distillation of alcohols

For the preparation of predominantly unbranched higher primary alcohols, olefins from the Fischer-Tropsch synthesis are reacted with hydrogen and carbon monoxide in the presence of water and a catalyst which is rhodium, in metallic form or as a compound, and a water-soluble phosphine. The reaction product obtained is hydrogenated. The water-soluble phosphines employed are compounds whose anion is a phosphine containing at least one sulfonated or carboxylated aromatic radical and whose cation is a quaternary ammonium or phosphonium ion.

Process for the preparation of predominantly unbranched higher primary

A process for preparing aldehydes by hydroformylating olefinically unsaturated compounds in the presence of a water-insoluble catalyst composition comprising rhodium complexes containing diphosphine ligands, wherein the diphosphine ligands present are compounds of the formula (I) ##STR1## wherein R.sup.1 is selected from the group consisting of carboxylate (COO.sup.-), sulfonate (SO.sub.3.sup.-), phosphonate (PO.sub.3.sup.2-) and 2-anmino ethtanebisphosphonate, R.sup.2 is selected from the group consisting of a straight-chain alkylene of 1 to 8 carbon atoms, an oxygen-containing alkylene of 2 to 6 carbon atoms, cycloalkylene of 3 to 10 carbon atoms and a member of the Formulae II, III, IV or v ##STR2##

Process for the preparation of aldehydes employing catalyst compositions

A water-soluble catalyst composition comprising rhodium complexes containing diphosphine ligands, wherein the diphosphine ligands present are compounds of the formula ##STR1## where R.sup.1 is selected from the group consisting of carboxylate (COO.sup.-), sulfonate (SO.sub.3.sup.-), phosphonate (PO.sub.3.sup.2-) and 2-amino ethanebisphosphonate �NH--CH.sub.2 --CH(PO.sub.3.sup.2-).sub.2 !, R.sup.2 is selected from the group consisting of a straight-chain alkylene of 1 to 8 carbon atoms, an oxygen-containing alkylene of 2 to 6 carbon atoms, cycloalkylene of 3 to 10 carbon atoms and a member of the formulae II, III, IV or V ##STR2## a, b, c, d, e, f, g, h, k and l are individually 0 to 1, where at least one of a, b, c, d, e, f, g, h, k or l has to be equal to 1, x(s) are individually 0 or 1, y is an integer of 1 to 24, R.sup.3 and R.sup.4 are individually selected from the group consisting of alkyl of 4 to 26 carbon atoms, substituted or unsubstituted aryl of 6 to 10 carbon atoms, cycloalkyl of 6 to 10 carbon atoms and benzyl and R.sup.3 can also be hydrogen and the use thereof in hydroformylations.

Catalyst systems based on rhodium complexes containing diphosphine

New diphosphines in the form of ammonium carboxylates, sulfonates or phosphonates having a singly or multiply charged diphosphine anion and the corresponding number of ammonium cations as counter ions, and a process for their preparation useful as ligand in rhodium catalyst systems for hydroformylation of olefins.

Substituted diphosphines and a process for their preparation

Waste gas obtained in the hydroformylation of olefinically unsaturated compounds in the presence of an aqueous catalyst solution comprising water-soluble rhodium complexes (1st reaction stage) is fed to a homogeneous reaction system in which residual amounts of the olefinically unsaturated compounds from the first reaction stage are reacted in a homogeneous reaction system (2nd reaction stage).

Process for the hydroformylation of olefinically unsaturated compounds

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Dinslaken, Germany

Peter Lappe