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WO/2005/073169A1 |
A method for the production of 3-pentenenitrile by hydrocyanation of 1,3-butadiene in the presence of at least one catalyst, whereby 1,3-butadiene which has not been hydrocyanated is removed from the product from hydrocyanation and recyc...
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WO/2005/073176A1 |
The invention relates to a method for isomerization of pentene nitrile in an educt flow, wherein isomerization is performed on a homogeneously dissolved catalyst.
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WO/2005/073170A1 |
The invention relates to a method for continuous hydrocyanation of 1,3-butadiene in the presence of at least one nickel(0)-catalyst with chelate ligands, wherein 1,3-butadiene and cyanohydrogen are used in a molar ratio of 1,6 - 1,1 to 1.
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WO/2005/073168A1 |
The invention relates to a method for the production of 3-pentene nitrile by hydrocyanation of 1,3-Butadiene with cyanohydrogen on at least one catalyst, wherein the 1,3-Butadiene and/or cyanohydrogen is brought into contact with at leas...
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WO/2005/073173A1 |
The invention relates to a method for producing 3-pentenenitrile by means of the hydrocyanation of 1,3-butadiene in the presence of at least one catalyst, the reaction being carried out in a loop-type bubble column comprising an external...
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WO/2005/073174A1 |
The invention relates to a method for producing 3-pentenenitrile, characterised by the following steps: (a) isomerisation of an educt stream containing 2-methyl-3-butenenitrile on at least one dissolved or dispersed isomerisation catalys...
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WO/2005/073179A1 |
A method for the separation of material mixtures of pentenenitrile isomers is disclosed, whereby at least one isomer of the mixture is enriched and the separation of the material mixture of pentenenitrile mixtures is carried out by disti...
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WO/2005/070880A1 |
A process for the recovery and purification of olefinically unsaturated nitriles from a process stream produced by the ammoxidation of a hydrocarbon feedstock comprising contacting the process stream comprising olefinically unsaturated n...
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WO/2005/070879A1 |
The invention concerns a method for producing: a) nitriles of formula (II) and; b) isonitriles of formula (III) by reacting: a) carboxylic acid amides (RCO-NH2), ammonium salts of carboxylic acids (RCOO-NH4+) or carboxylic acids in the p...
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WO/2005/070869A1 |
The present invention describes an improved catalyst and process for the selective hydrogenation of nitro aromatics, nitrosoaromatics and aromatic hydroxyl amines to their corresponding amines using gaseous hydrogen, in the presence of s...
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WO2005026106B1 |
The present invention is directed to compositions of specific carboxylic acid, fatty acid or oil derivatives containing nitrile groups and methods of their preparation. The preparation involves a hydrocyanation reaction. A method of hydr...
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WO/2005/063696A2 |
The invention relates to three novel forms of entacapone. These are peripheral and selective COMT inhibitors which in combination with levodopa and decarboxylase inhibitors can be used to treating Parkinson's syndrome. Said novel forms a...
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WO/2005/063693A1 |
The invention disclosed in this application relates to an improved process for the preparation of the Entacapone which comprises. (i)reacting 3-alkoxy- 4-hydroxy-5-nitrobenzadehyde with N,N-diethylaminocyanoactamide in the presence of mi...
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WO/2005/061429A1 |
Disclosed is a method for hydrogenating nitrile functions contained in organic compounds on at least one heterogeneous catalyst, hydrogenation taking place in the presence of an ionic liquid.
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WO/2005/058498A1 |
Described is a method for the preparation of Mo-V-Te-Nb catalyst comprising the steps of a) preparing a slurry comprising ionic species of Mo, V, Te and Nb and an inert carrier by combining the inert carrier in ceramic form with one or m...
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WO/2005/049560A2 |
A process for the preparation of anti-depressant, compound of formula (I) or its pharmaceutically acceptable salts said process comprising reducing compound of formula (IIa) (wherein R is CONMe2) with sodium bis(2-methoxyethoxy) aluminiu...
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WO/2005/044783A2 |
The present invention relates to improved processes to recover acetonitrile from a diluted aqueous low grade acetonitrile feedstock.
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WO/2005/042153A1 |
The preparation of fixed bed activated base metal granules via the mixing of the precursor alloy powder with optionally an organic binder and optionally an inorganic binder to form granules that are dried, calcined for stabilization purp...
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WO/2005/042547A1 |
The invention relates to phosphinite phosphites I of formula 1, 2, 3, 4, 5 or 6 and mixtures thereof, wherein R1, R2, R4 independently represent an alkyl or alkylene group with 1 to 8 carbon atoms, provided that at least one of the group...
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WO/2005/042157A2 |
The invention relates to a method for the production of nickel(0)-phosphorous ligand complexes from nickel(II)-ether adducts.
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WO/2005/042158A1 |
The preparation of activated hollow bodies (e.g., spheres) with an organic (e.g., polyvinyl alcohol) and optionally inorganic binder (e.g., Ni or Co powders) containing suspension of the desired Raney-type alloy comprised of a catalytic ...
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WO/2005/042156A1 |
The invention relates to a method for producing nickel(0)/phosphorus ligand complexes, which comprise at least one nickel(0) central atom and at least one phosphorus-containing ligand. Said method is characterised in that a nickel(II) so...
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WO/2005/039764A1 |
Method for the preparation of fixed bed activated base metal granules via the mixing of the precursor alloy powder with optionally an organic binder and optionally an inorganic binder to form granules that are dried, calcined for stabili...
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WO/2005/040097A1 |
The present invention relates to chiral N-acetyl-alpha-amino acid salts of optically active β-amino alkylnitriles, and also to a process for preparing optically active β-amino alkylnitriles by resolving racemic β-amino alkylnitriles u...
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WO/2005/039766A1 |
The preparation of activated hollow bodies (e.g., spheres) with an organic (e.g., polyvinyl alcohol) and optionally inorganic binder (e.g., Ni or Co powders) containing suspension of the desired Raney-type alloy comprised of a catalytic ...
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WO/2005/035483A1 |
Process for the preparation of 1-[cyano(phenyl)methyl]cyclohexanoI compounds of general formula (I): in which R1 is hydrogen or (C1-4)alkoxy, and R2 is hydrogen, (C1-4)alkyl or (C1-4)alkoxy, by reacting a compound of general formula (II)...
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WO/2005/028410A1 |
A method for producing a nitrile compound, a carboxylic acid compound or a carboxylate compound represented by the general formula (2): (2) (wherein R, R1 and R2 are as defined below) is characterized in that an acetic acid compound repr...
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WO/2005/028418A1 |
Process for making both ACN and HMD from partial hydrogenation of ADN by using a combination of distillations resulting in the formation of a mixture of HMD and THA that can be hydrogenated to produce a mixture of HMD and HMI that can be...
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WO/2005/026107A1 |
A novel process for preparation of tert-butyl 6-cyano-5-hydroxy-3-oxohexanoate, which is a key intermediate for the preparation of HMG COA reductase inhibitor, is disclosed.
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WO/2005/026105A2 |
A process for making a compound of formula I wherein R1, is CN, F or CI; R2 is H or Br; and R3 and R4 are each independently H or F. These compounds are useful in the treatment of chronic inflammatory diseases, such as rheumatoid arthritis.
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WO/2005/019160A1 |
The invention relates to a method of producing and separating dinitrile compounds. More specifically, the invention relates to a method of producing and separating dinitrile compounds from a medium resulting from the hydrocyanation of un...
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WO/2005/014531A1 |
A process for the production of N-methacryloyl-4-cyano -3-trifluoromethylaniline which comprises reacting 4-cyano-3-trifluoromethylaniline with methacrylic acid or a reactive derivative thereof in the presence of a polymerization inhibit...
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WO/2005/005375A1 |
The invention relates to a method for producing 4-cyano-3-hydroxybutyric acid esters by reaction of hydroxybutyric acid ester substituted in position 4 with a cyanide salt in an organic solvent in the presence of one or several other salts.
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WO/2005/003063A2 |
Acrolein is removed from a process stream such as a process stream generated in the manufacture of acrylonitrile. The process includes reacting the acrolein with a compound containing a reactable thiol or hydroxyl moiety in the presence ...
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WO/2005/000839A1 |
An excellent process for efficiently producing a benzofuran derivative or pyridofuran derivative or a pharmacologically acceptable salt of either, the derivatives being represented by the general formula [I]: [I] (wherein X represents -N...
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WO/2005/000463A2 |
Compositions of matter and catalyst compositions effective for gas-phase conversion of propane to acrylic acid (via oxidation) or to acrylonitrile (via ammoxidation) and isobutane to methacrylic acid (via oxidation) and isobutane to meth...
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WO/2004/113261A1 |
The invention relates to a distillation method for isolating a compound comprising at least two functional groups, selected independently of one another from a group consisting of a nitrile group, carboxylic acid group, carboxylic acid e...
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WO/2004/105929A2 |
A method and system for reactively destroying alkyl halides in volume or stream of gas. The method and device employ nucleophilic reaction of the alkyl halide under phase transfer catalysis conditions. The method and system are useful fo...
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WO/2004/106284A1 |
A method for producing a purified 2-cyanoacrylate is characterized in that distillation is conducted in the presence of a polymerization inhibitor whose boiling point is within ± 12&ring C of the boiling point of the 2-cyanoacrylate. Wi...
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WO/2004/101136A2 |
A new reactor apparatus that can be used to carry out chemical reactions in a fluidized catalyst bed at high temperatures with reduced afterburning or other undesirable downstream side reactions. One application is the manufacture of acr...
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WO/2004/101497A2 |
The invention relates to a method of preparing dinitriles, involving hydrocyanation of unsaturated nitrile compounds in the presence of a catalyst based on metallic elements in zero oxidation state and organophosphorous ligands. More spe...
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WO/2004/101498A2 |
The invention relates to a method for the hydrocyanation of unsaturated compounds into unsaturated mononitrile compounds or into dinitriles. More specifically, the invention relates to a method of producing dinitriles, involving the doub...
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WO/2004/101499A1 |
An industrially advantageous process for producing (meth)acrylonitrile in high yields by means of ammoxidation comprising catalytically oxidizing at least one saturated hydrocarbon selected between propane and isobutane with a gaseous mi...
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WO/2004/099113A1 |
This invention relates to a process for converting a hydrocarbon reactant to a product comprising an oxygenate or a nitrile, the process comprising: (A) flowing a reactant composition comprising the hydrocarbon reactant, and oxygen or a ...
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WO/2004/099123A1 |
An industrially advantageous process for producing (meth) acrylonitrile in high yields by means of ammoxidation comprising catalytically oxidizing at least one saturated hydrocarbon selected between propane and isobutane with a gaseous m...
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WO/2004/094343A1 |
A novel process for the preparation of compounds of formula (I): R1 = CN, OP (P=any suitable protecting group), alkyl, aryl or hetroaryl, R2 = Alkyl or aryl by reacting a compound of formula (II): R1 = CN, OP (P=any suitable protecting g...
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WO/2004/094364A1 |
The invention relates to a method for the isomerization of 2-pentenenitrile to form trans-3-pentenenitrile in the presence of aluminium oxide as a catalyst. The invention is characterised in that the BET surface of the aluminium oxide is...
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WO/2004/091779A1 |
Disclosed is a method for producing a metal oxide catalyst which is preferably used when acrylic acid or acrylonitrile is produced at high yield by single-step contact oxidation of propane. The method is characterized by using metal tell...
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WO/2004/092114A1 |
The present invention relates to a process for preparing 4-chloro-3-hydroxybutanoic acid ester, an intermediate for preparing atorvastatin, in high purity and yield, by comprising the steps of 1) reacting epichlorohydrin of formula (2) w...
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WO/2004/091776A1 |
A catalyst for acrylonitrile synthesis is disclosed which is composed of particles containing silica and a composite oxide including at least molybdenum. When the Mo/Si atomic ratio in bulk composition of the catalyst is represented by A...
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