摘要:
The invention accordingly relates to the use as catalysts of at least one metal complex of formula (1) [LnMemXp]2Yq (1), wherein L is a ligand of formula (2) wherein Q1 is N or CR 10, Q2 is N or CR11, and wherein the remaining substituents have the meanings as defined in the claims, for oxidation reactions with (A) organic peroxy acids and/or (B) precursors of organic peroxy acid, the later in combination with (B-1) H2O2 and/or (B-2) a preecursor of H2O2 , in particular in detergent compositions. Further possible uses related to epoxidation of olefins in organic synthesis, pulp and paper bleaching compositions, oxidative waste water treatment, automatic dishwasher formulations and disinfection compositions.
摘要:
Activation of ruthenium based catalyst compounds with acid to improve reaction rates and yields of olefin metathesis reactions, including ROMP, RCM, ADMET and cross-methasis reactions is disclosed. The ruthenium catalyst compounds are ruthenium carbene complexes of the general formula AxLyXzRu=CHR' where x = 0, 1 or 2, y = 0, 1 or 2, and z = 1 or 2 and where R' is hydrogen or a substituted or unsubstituted alkyl or aryl, L is any neutral electron donor, X is any anionic ligand, and A is a ligand having a covalent structure connecting a neutral electron donor and an anionic ligand. The use of acid with these catalysts allows for reactions with a wide range of olefins in a variety of solvents, including acid-initiated RIM processes and living ROMP reactions of water-soluble monomers in water.
摘要:
Disclosed herein is a general method for the preparation of complexes containing a quaternary onium group in an inert ligand. Some of these complexes may be represented by formula 1: Methods for the preparation of complexes of formula 1, the preparation of intermediates and the use of complexes of formula 1 in metathesis reactions and a method for conducting an olefin metathesis reaction are also described.
摘要:
Disclosed herein is a general method for the preparation of complexes containing a quaternary onium group in an inert ligand. Some of these complexes may be represented by formula 1: Methods for the preparation of complexes of formula 1, the preparation of intermediates and the use of complexes of formula 1 in metathesis reactions and a method for conducting an olefin metathesis reaction are also described.
摘要:
The present invention relates to a process for the catalytic oxidation of sulphide, mono- and/or dihydrogen sulphide, comprising the step of contacting the sulphide, mono- and/or dihydrogen sulphide in the presence of oxygen with a chelate complex comprising (i) a metal cation selected from the group consisting of Fez+, Mn z+ , Ni z* and Co z+ , where z = 2 or 3, and (ii) a chelate ligand containing a porphyrin, a phtha!ocyanine or a porphyrazine ring coordinated to the metal cation, and at least one cationic substituent covalentiy attached to the ring in the chelate ligand.
摘要:
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von Aldehyden, dadurch gekennzeichnet, daß man eine olefinische Verbindung mit 2 bis 20 Kohlenstoffatomen mit Kohlenmonoxid und Wasserstoff in Anwesenheit oder Abwesenheit eines Lösungsmittels in Gegenwart eines Katalysators enthaltend Rhodium und eine Verbindung oder ein Gemisch von Verbindungen der allgemeinen Formel (I) worin R 1 für H oder einen Alkylrest mit 1 bis 12 Kohlenstoffatomen, R 2 für einen geradkettigen Alkylenrest mit 1 bis 8 Kohlenstoffatomen, einen Sauerstoff enthaltenden Alkylenrest mit 2 bis 4 Kohlenstoffatomen, einen Rest der Formel (II) oder (III) oder einen Cycloalkylenrest mit 3 bis 10 Kohlenstoffatomen, R 3 für einen Alkylrest mit 1 bis 25 Kohlenstoffatomen oder einen Arylrest mit 6 bis 10 Kohlenstoffatomen steht, A einen Rest -COO - oder -SO 3 - darstellt und x = 0, y = 1, m = 1 und n = 1 ist, oder x = 1, y = 1, m = (1 oder 2) und n = (1 oder 2) ist, oder, falls R 2 einen Rest der Formel (II) oder (III) darstellt, x = 1, y = 0, m = (0 oder 1) und n = (0 oder 1) ist, bei einer Temperatur von 50 bis 190°C und unter einem Druck von 0,1 bis 45 MPa umsetzt und das Reaktionsprodukt vom Katalysator abtrennt.
摘要:
There is provided a metalloporphyrin complex represented by general formula (1): wherein M is a metal; A 1 to A 4 are independently of each other a substituent represented by general formula (2): €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ-D-E X - €ƒ€ƒ€ƒ€ƒ€ƒ(2) wherein D is a divalent organic group having 1 to 20 carbon atoms; E + is a quaternary ammonium group or quaternary phosphonium group having 3 to 60 carbon atoms; and X is a halogen atom. There is thus provided a metalloporphyrin complex which, when used as a carbon dioxide fixation catalyst, exhibits high catalytic activity, has a small environmental burden and can be easily synthesized.
摘要:
Provided is a method for producing a fuel cell electrode catalyst having high catalytic activity using a transition metal through heat treatment at comparatively low temperature. The method for producing a fuel cell electrode catalyst, including: a step (1) of mixing at least a metal compound (1), a nitrogen-containing organic compound (2), a compound (3) containing fluorine and at least one element A selected from the group consisting of boron, phosphorus, and sulfur, and a solvent to obtain a catalyst precursor solution, a step (2) of removing the solvent from the catalyst precursor solution, and a step (3) of heat-treating a solid residue, obtained in the step (2), at a temperature of 500 to 1100°C to obtain an electrode catalyst; a portion or the entirety of the metal compound (1) being a compound containing, as a metal element, at least one transition metal element M1 selected from the elements of group 4 and group 5 of the periodic table; and at least one of the compounds (1), (2), and (3) having an oxygen atom.
摘要:
The invention accordingly relates to the use of a composition comprising (i) at least one metal complex of formula (1) [Ln MemXp]ZYq (1), wherein all substituents have the meanings as defined in the claims and (ii) at least one polyphosphonate as oxidation catalyst for peroxide compounds, as well as to novel detergent compositions.