Abstract: The present invention relates to a composition comprising: a) at least one support material; b) at least one metal selected from transition group VIII of the Periodic Table of the Elements and c) at least one compound of the formula (I) R?-A-R? (I), where A, R? and R? are each an organic radical, where R? and R? have the structural element —O—P(—O—)2 with trivalent P and are bonded covalently to the A radical via the latter, with the proviso that R??R?, to a process for producing such a composition, to the use of the composition and to a process and an apparatus for hydroformylation in which the composition is used.

Abstract: Bisphosphites having a central 2,3?-biphenol unit are useful for catalyzing hydroformylation.

Abstract: The invention relates to the following subject matters: a) phosphoramidites of the formula (I); b) transition metal-containing compounds of the formula Me(acac)(CO)L, wherein L is selected from the formula (I); c) catalytically active compositions in the hydroformylation, which contain the compounds listed in a) and b); d) method for hydroformylation of unsaturated compounds using the catalytically active composition listed under c); and e) multi-phase reaction mixture containing unsaturated compounds, gas mixture comprising carbon monoxide, hydrogen, aldehydes, and the catalytically active compositions described in c).

Abstract: Bisphosphites having an outer naphthyl-phenyl unit and a central 2,3?-biphenol unit and their preparation are described.

Abstract: The invention relates to new ligands based on derivatives of phosphorous acid, to compositions that have said new ligands, and to the use thereof in a method for the low-isomerization hydroformylation of oleic-acid-ester-containing mixtures.

Abstract: Bisphosphites having at least one unsymmetric outer biphenol unit are useful for the hydroformylation of an olefin.

Abstract: Monophosphites including a benzopinacol structure and metal complexes thereof are provided. The metal complex compositions are useful as hydroformylation catalysts. The metals of the complex include Rh, Ru, Co and Ir. A method of hydroformylation using the metal complex or the metal complex components is also provided.

Abstract: Bisphosphites having an outer naphthyl-phenyl unit.

Abstract: Monophosphites comprising an anthrol are useful for catalyzing hydroformylation of an olefin to an aldehyde.

Abstract: Monophosphites having an unsymmetric biaryl structure and metal complexes thereof are provided. The metal complex compositions are useful as hydroformylation catalysts. The metals of the complex include Rh, Ru, Co and Ir. A method of hydroformylation using the metal complex or the metal complex components is also provided.

Abstract: Bisphosphites having an unsymmetric central biaryl unit.

Abstract: The invention relates to: a) phosphoramidites of formula (I), wherein Q is selected from substituted or unsubstituted 1,1?-biphenyl groups, R1 stands for hydrogen, and R2 stands for C1-C10 alkyl groups, substituted or unsubstituted C4-C6 cycloalkyl groups, or phenyl groups and wherein R2 is not a tertiary butyl group; b) transition-metal-containing compounds of the formula Me(acac)(CO)L, wherein Me=transition metal and L of the general formula (II): wherein Q is selected from substituted or unsubstituted 1,1?-biphenyl groups, R1 stands for hydrogen, R2 stands for C1-C10 alkyl groups, substituted or unsubstituted C4-C6 cycloalkyl groups, or phenyl groups, and R2 is not a tertiary butyl group and wherein the transition metal Me is selected from ruthenium, cobalt, rhodium, and iridium; c) catalytically active compositions in the hydroformylation, which comprise the compounds mentioned under a) and b); d) method for the hydroformylation of unsaturated compounds by using the catalytically active composition mentio

Abstract: A composition and the use of said composition as catalytically active composition in processes for synthesis of chemical compounds, especially the hydroformylation of olefinically unsaturated hydrocarbon mixtures.

Abstract: The invention relates to a process for preparing aldehydes having five carbon atoms, in which an input mixture containing 10% by weight to 50% by weight of linear butenes and less than 5% by weight of 1-butene is hydroformylated with synthesis gas in the presence of a catalyst system comprising rhodium and at least one bisphosphite ligand, wherein the hydroformylation is effected in a reactor from which, over an operating period, a cycle gas containing at least a portion of the products and unconverted reactants from the hydroformylation is continuously drawn off and partly condensed, and uncondensed components of the cycle gas are recycled into the reactor, and wherein, after the operating period has expired, the hydroformylation is stopped, the reactor is freed of reaction residues and the hydroformylation is restarted. It is based on the problem of making such a process more economically viable.

Abstract: The invention relates to an electrochemical method for the selective coupling of a phenol to a naphthol which differ in their oxidation potential. The invention also relates to compounds which can be produced by electrochemical coupling.

Abstract: The invention relates to an electrochemical method for coupling phenol and aniline, the difference of the oxidation potential of the substrates being in the region of 10 mV-450 mV and the substrate with the highest oxidation potential being added in excess. Said method enables biaryls, which have hydroxy- and amino functions, to be electrochemically produced and to dispense with multi-step syntheses using metallic reagents.

Abstract: Electrochemical process for coupling two phenols of different oxidation potential, and novel biphenols which can be prepared by this electrochemical coupling.

Abstract: The invention relates to 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 bis 450 mV, and the aniline with the highest oxidation potential is added in excess. Said method enables biaryldiamines to be electrochemically produced and to dispense with multi-step syntheses using metallic reagents.

Abstract: A mixture containing a monophosphite ligand is useful for the catalysis of a hydroformylation reaction.

Abstract: A novel monophosphite ligand having a tert-butyloxycarbonyl group is useful as a ligand in hydroformylation of an olefin.