Abstract: (EN) The invention relates to the use of novel organophosphoric compounds and metal complexes thereof in catalytic reactions, and to the hydroformylation of olefins in the presence of these compounds.

Abstract: The invention relates to a process for reaction of a carbonylatable compound using a metal complex catalyst comprising a metal of transition group VIII and an organophosphorus ligand and in the presence of a stabilizer based on a sterically hindered secondary amine.

Abstract: Process for separating a dissolved complex catalyst of a metal of group 4, 5, 6, 7, 8, 9 or 10 of the Periodic Table of the Elements and/or any free organophosphorus ligand present from a nonaqueous hydroformylation reaction mixture which contains an aldehyde product and an organic solvent at least one membrane which is more permeable to the hydroformylation product than to the organophosphorus ligand, the separation being carried out under a carbon monoxide partial vapor pressure of more than 200 kPa.

Abstract: The invention relates to a process for reaction of a carbonylatable compound using a metal complex catalyst comprising a metal of transition group VIII and an organophosphorus ligand and in the presence of a stabilizer based on a sterically hindered secondary amine.

Abstract: Process for carrying out catalytic multiphase reactions in a tubular reactor, in which at least three reactants are present in three different phases, wherein the process is carried out in at least one tubular reactor, and the catalyst is present in a continuous phase, at least one reactant is present in this continuous phase, and at least two reactants are present dispersed in the continuous phase and the loading factor B of the tubular reactor is equal to or greater than 0.2. In particular, the multiphase reaction is a hydrocarboxylation of at least one olefin to a carboxylic acid.

Abstract: The invention relates to a process 1-olefins by telomerization of compounds having conjugated double bonds with a telogen in the presence of a noble metal telomerization catalyst, hydrogenation of the telomer and cleavage of the hydrogenated intermediate. Use of the 1-olefin as comonomer.

Abstract: The present invention relates to a process for preparing 1-olefins from 2-hydroxyalkanes by catalytic elimination of water under nonisomerizing conditions and to a catalyst which is particularly well-suited for this process and formally comprises yttrium oxide (Y2O3), zirconium dioxide (ZrO2) and an alkali metal oxide and/or alkaline earth metal oxide.

Abstract: The present invention relates to a process for preparing organophosphites, organosphonites and organophosphinites by condensing phosphorus trihalides or organophosphorus halides with organic compounds bearing hydroxyl groups in the presence of polymeric basic ion exchange resins. The process according to the invention makes possible in a simple manner the preparation of trivalent organophosphorus compounds which may serve, for example, as ligands in rhodium complexes which may be used as a catalyst in hydroformylation.

Abstract: Mixtures of isomeric dialkyl phthalates that have a desired viscosity are prepared by esterifying phthalic acid or phthalic anhydride with a mixture of isomeric alkyl alcohols having a certain carbon number of carbon atoms, where the molar fraction of each alkyl alcohol isomer of the isomeric alcohol mixture is determined, and where the viscosity parameter of each alkyl alcohol isomer of the alcohol mixture, which, upon reacting with phthalic acid or phthalic anhydride, results in a mixed isomer dialkyl phalate ester product having a specific desired viscosity, is determined in accordance with formula (I): ln(?)=??i*ln(?i) ??(I) where ?=the calculated viscosity of a dialkyl phthalate mixture, ?i=the molar fraction of an isomerically pure alcohol (i), and ?i=the viscosity parameter of isomerically pure alcohol (i).

Abstract: The present invention relates to a process for preparing aldehydes by hydroformylation of olefinically unsaturated compounds catalyzed by metals of groups 8 to 10 of the Periodic Table of the Elements in the presence of cyclic carbonic esters and ligands which contain no sulfonic acid or sulfonate group.

Abstract: (EN) The invention relates to the use of novel organophosphoric compounds and metal complexes thereof in catalytic reactions, and to the hydroformylation of olefins in the presence of these compounds.

Abstract: The present invention relates to the preparation of olefins or olefin mixtures having from 8 to 12 carbon atoms from one or more olefin(s) having from 4 to 6 carbon atoms by means of a four-stage synthesis. The four-stage synthesis comprises the steps of hydroformylation to form the aldehyde, hydrogenation to form the alcohol, elimination of water to form the 1-olefin and metathesis. The C8-C12-olefins obtained can be used, for example, for peparing plasticizer alcohols, in particular isononanol.

Abstract: The present invention relates to a process for preparing organophosphites, organosphonites and organophosphinites by condensing phosphorus trihalides or organophosphorus halides with organic compounds bearing hydroxyl groups in the presence of polymeric basic ion exchange resins. The process according to the invention makes possible in a simple manner the preparation of trivalent organophosphorus compounds which may serve, for example, as ligands in rhodium complexes which may be used as a catalyst in hydroformylation.

Abstract: Phosphinines of formula (I) can be combined with metal salts to prepare hydroformylation catalysts. The phosphinine complexes have two phosphorus centers that may be substituted with a variety of hetero atoms or alkyl substituents to modify the ligand characteristics of the phosphinine. Phosphinine metal complexes are employed under normal hydroformylation reaction conditions. The preparatory routes to the phosphinine ligands of formula (I) allow for their convenient synthesis.

Abstract: The present invention relates to a process for preparing aldehydes by hydroformylation catalyzed by metals of groups 8 to 10 of the Periodic Table of the Elements in the presence of cyclic carbonic esters.

Abstract: The present invention relates to a process for preparing 1-olefins from 2-hydroxyalkanes by catalytic elimination of water under nonisomerizing conditions and to a catalyst which is particularly well-suited for this process and formally comprises yttrium oxide (Y2O3), zirconium dioxide (ZrO2) and an alkali metal oxide and/or alkaline earth metal oxide.

Abstract: Phosphites of the formula I and phosphite-metal complexes, their preparation and their use in catalytic reactions, in particular in processes for the hydroformylation of olefins, are described.

Abstract: The present invention relates to a process for preparing a C13-alcohol mixture which is suitable, in particular, as precursor for the preparation of compounds having surfactant properties and of plasticizers.

Abstract: The present invention relates to a process for preparing aldehydes by hydroformylation of olefinically unsaturated compounds catalyzed by metals of groups 8 to 10 of the Periodic Table of the Elements in the presence of cyclic carbonic esters and ligands which contain no sulfonic acid or sulfonate group.

Abstract: N-Phenylpyrrolebisphosphines of the formula I metal complexes of these N-phenylpyrrolebisphosphines and their use in metal-catalyzed reactions.