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WO/2004/089858A1 |
The invention relates to a method for the production of at least one partial oxidation and/or ammoxidation product of a hydrocarbon, wherein at least one saturated hydrocarbon (K) that is heterogeneously catalyzed is partially dehydrogen...
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WO/2004/089879A1 |
A process for the production of nitrile compounds represented by the general formula (I): (I) [wherein n is an integer of 1 to 3; and the double line constituted of a broken line and a solid line represents a single bond or a double bond...
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WO/2004/087642A1 |
Process for recovery of highly pure acrylonitrile by quickly vaporizing under vacuum the contaminated acrylonitrile as well as fresh acrylonitrile followed by contacting with hydrophilic agents in an extractive distillation column using ...
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WO/2004/087314A1 |
A system suitable for use as a catalyst for the hydrocyanation of olefinically unsaturated compounds, containing a) Ni(0), b) Ni(0) as a ligand complex-fixing compound containing trivalent phosphorus, c) a Lewis acid and d) a compound of...
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WO/2004/085383A1 |
Compound (I) is produced by reacting compound (II) with compound (III) or a reactive derivative thereof obtained by modification of the carboxyl group to form compound (IV) and reacting the compound (IV) with a mixed acid anhydride of co...
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WO/2004/083165A1 |
The invention relates to a method for obtaining cyan-3-hydroxy-N-(phenyl)but-2-ene amide, whereby a phenyl-substituted 2-cyan-N-(phenyl)acetamide is converted in the presence of a base, acetic acid anhydride and at least one solvent, and...
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WO/2004/083164A1 |
A process for producing an &ohgr -cyanoaldehyde compound, characterized by bringing a 2-alkoxycycloalkanone oxime compound into contact with a solid acid.
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WO/2004/080924A2 |
The invention relates to a method of producing compounds comprising two nitrile functions. More specifically, the invention relates to a method of producing dinitrile compounds from compounds comprising a nitrile function and an ethyleni...
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WO/2004/080948A1 |
The invention relates to a method for hydrocyanating an olefinically unsaturated nitrile in the presence of a catalyst that contains Ni(0). The inventive method is characterized in that the reaction is carried out in the presence of a hy...
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WO/2004/078702A1 |
The invention relates to a process for the preparation of an &agr -amino carbonyl compound by reacting an imine starting material with a suitable electrophile in the presence of a base. This process has the advantage that the imine start...
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WO/2004/078344A1 |
A particulate porous ammoxidation catalyst for use in producing acrylonitrile or methacrylonitrile by reacting propylene, isobutene, or tertiary butanol with molecular oxygen and ammonia in a fluidized-bed reactor, characterized in that ...
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WO/2004/074237A1 |
A process for the preparation of gamma-cyhalothrin comprising steps of a) chlorinating 1R cis-Z 3-(2-chloro-3,3,3-trifluoro-l-propenyl)-2,2-dimethyl cyclopropanecarboxylic acid to give 1R cis-Z 3-(2-chloro-3,3,3-trifluoro-l-propenyl)-2,2...
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WO/2004/065352A2 |
The invention concerns a method for hydrocyanation of ethylenically unsaturated organic compounds into compounds comprising at least one nitrile function. More particularly, the invention concerns hydrocyanation of olefins such as butadi...
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WO/2004/065004A1 |
A method for producing a metal oxide catalyst which enables to produce an acrylic acid, acrylonitrile or the like at high yield by a single step of catalytic oxidation reaction of propane. The method is characterized in that a metal Te o...
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WO/2004/064994A2 |
A process for preparing a hydrocyanation catalyst comprising contacting a bidentate phosphorous-containing ligand with nickel chloride in the presence of a nitrile solvent and a reducing metal which is more electropositive than nickel th...
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WO/2004/063144A1 |
A process for making a water-soluble β-hydroxynitrile. A 1,2-epoxide and an inorganic cyanide salt are reacted in a solvent having aqueous methanol and a buffer therein to form β-hydroxynitrile. The buffer substantially inhibits the in...
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WO/2004/063145A1 |
A process for the recovery of acrylonitrile or methacrylonitrile from an aqueous solution comprising subjecting the said solution to a water extractive distillation by feeding the solution to a distillation column and performing said ext...
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WO/2004/060855A1 |
The invention relates to a method for the hydrocyanation of ethylenically-unsaturated organic compounds into compounds comprising at least one nitrile function. More specifically, the invention relates to a method for the hydrocyanation ...
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WO/2004/056752A1 |
A process for the preparation of gamma-cyahlothrin comprising a) chlorinating 1R cis-Z 3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl cyclopropanecarboxylic acid to give 1R cis-Z 3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl...
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WO/2004/056754A1 |
In the following, citalopram diol means 4-(4-(dimethylamino)-l-(4-fluorophenyl)-1-hydroxybutyl)-3-
(hydroxymethyl)-benzonitrile, as free base and/or acid addition salt. The invention relates to a process for the preparation of racemic ...
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WO/2004/056753A1 |
The invention relates to a method for producing 3-cyano-3,5,5- trimethylcyclohexanone (isophorone nitrile) by reacting isophorone with hydrogen cyanide in the presence of a base as a catalyst. A special sulfonic acid or a special carboxy...
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WO/2004/054966A1 |
The invention relates to a method for the production of optically-active cyanohydrins and the corresponding $g(a)-hydroxycarboxylic acids, from an aldehyde, a CN source and an optically-active vanadyl-salen catalyst in a biphasic liquid/...
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WO/2004/055028A1 |
The invention relates to mixtures comprising vanadyl-salen complexes with 10 to 99.9 wt.% of a compound of formula VOm(Salen)n (I), with m ? n and m < n, where m = 1 and n = 2 and 0 to 90 wt.% of a compound of formula VO(Salen) (II) and/...
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WO/2004/052939A2 |
One aspect of the present invention relates to ligands for transition metals. A second aspect of the present invention relates to the use of catalysts comprising these ligands in transition metal-catalyzed carbon-heteroatom and carbon-ca...
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WO/2004/052842A1 |
Economical processes are disclosed for recovery and refining of valuable nitrogen-containing organic compounds formed by catalytic oxidation of least one feed compound selected from the group consisting of propane, propylene, isobutane a...
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WO/2004/052524A1 |
Disclosed is a shell-and-tube type reactor (2) comprising a bundle of annular, vertical reaction tubes (6) around which a heat transfer medium flows, alternating annular and disk-shaped metal deflection sheets (22, 24) for the heat trans...
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WO/2004/050236A1 |
A process for the manufacture of an improved vanadium antimony oxide oxidation or ammoxidation catalyst which comprises heat treating the catalyst at a temperature above 780°C in the presence of an oxygen enriched environment. Such cata...
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WO/2004/050607A1 |
Phenylmalonic acid dinitriles are prepared by reaction of, for example, phenyl Kalides with malonic acid dinitrile in the presence of palladium catalysts and bases.
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WO/2004/050237A1 |
A process for the manufacture of an improved iron promoted vanadium antimony oxide catalyst useful in the ammoxidation of propane to acrylonitrile wherein the source of iron (i.e. an iron containing compound such as Fe2O3) employed in th...
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WO/2004/050235A1 |
Vanadium antimony oxide catalysts useful for the selective oxidation and ammoxidation of paraffins, olefins, and aromatic compounds are manufactured in a process comprising (i) forming a catalyst precursor slurry comprising a vanadium co...
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WO/2004/050240A1 |
A catalyst comprising a complex of catalytic oxides comprising potassium, cesium, cerium, chromium, cobalt, nickel, iron, bismuth, molybdenum, wherein the relative ratios of these elements is represented by the following general formula ...
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WO/2004/050606A1 |
The present invention comprises the simultaneous ring opening and concomitan N-substitution of various N-tosyl aziridines with different aliphatic and aromatic nitriles in presence of catalytic amount of metal triflates to afford differe...
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WO/2004/048318A1 |
An improved process for the preparation of 1,3 substituted indenes which are useful intermediates in the synthesis of aryl fused azapolycyclic compounds as agents for the treatment of neurological and psychological disorders.
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WO/2004/046088A1 |
Process for the racemisation of an enantiomerically enriched &agr -amino nitrile characterized in that the enantiomerically enriched &agr -amino nitrile is contacted with a lewis acid catalyst. Preferably an aprotic solvent is used. The ...
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WO/2004/037399A2 |
Multiphasic reactions, especially those reactions using a phase transfer catalyst, are conducted in microchannel apparatus. Advantageously, these reactions can be conducted with two, planar microlayers of reactants in adjacent laminar fl...
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WO/2004/035528A1 |
Disclosed is a method for producing a multi-metal oxide material that contains the elements Mo, V, Te, and/or Sb, at least one of the elements Nb, Ti, W, Ta, and Ce, and optional promoters and has a specific X-ray diffractogram. The last...
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WO/2004/035526A1 |
A novel process for industrially producing an aromatic nitrile compound represented by the general formula (3): (3) characterized in that one of aromatic hydroxymethyl, aromatic alkoxymethyl, and aromatic aldehyde compounds represented b...
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WO/2004/035527A1 |
The invention relates to a multimetallic oxide composition which comprises Mo, V and T and/or Sb elements, and at least one of Nb, Ti, Ta and Ce elements and promoters, and has a specific X-ray diffraction diagram. The use of said multim...
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WO/2004/031131A1 |
The present disclosure relates to an improved synthesis of the commercially important syntheton ECHB starting from the readily available 3-hydroxy-&gammad -butyrolactone. The reaction employs a single pot procedure without isolation or p...
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WO2003101939B1 |
The present invention relates to a method for preparing halogenated benzonitriles by vapour phase ammoxidation at a reaction temperature comprised in the range of 300 to 500 DEG C in a fixed bed reactor using a three-component catalyst. ...
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WO/2004/031107A1 |
Disclosed is a method for producing at least one partial propylene oxidation and/or ammoxidation product, according to which the propylene is produced from raw propane by means of dehydration and is subjected to a heterogeneously catalyz...
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WO/2004/031106A1 |
Disclosed is a method for producing at least one partial propylene oxidation and/or ammoxidation product, according to which the propylene is produced from raw propane by means of dehydration and is subjected to a heterogeneously catalyz...
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WO2004005244B1 |
The invention relates to a method for producing O-alkyl-N-cyanoformimidates, during which the reaction of cyanamide with orthoformic acid alkyl esters ensues with a molar ratio of 1: 0.8 to 10.0 without the addition of a catalyst, at pre...
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WO/2004/026462A1 |
A system and method for the manufacture of hydrogen cyanide, acrylonitrile, and acetonitrile are provided. The system comprises at least one pulsed corona discharge reactor with each pulsed corona discharge reactor having a reaction zone...
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WO/2004/026812A2 |
According to the inventive method for catalyst-free production of cyanophenols from methoxybenzonitriles, substituted methoxybenzonitriles of general formula (I) are reacted with an alkali alcoholate at temperatures of 80 - 230 °C. The ...
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WO/2004/026821A2 |
The present invention provides antibacterial compounds, antibacterial compositions, bacteria-reducing methods, bacteria-reduced substrates/articles made by the methods that employ an antibacterial agent comprising a non-halogenated nitri...
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WO/2004/024707A2 |
The present invention relates to processes for preparing amine substituted benzofurans, and more particularly 4-(2-&lcub 2-[(2R)-2-methyl-1-pyrrolidinyl]ethyl&rcub -1-benzofuran-5-yl)benzonitrile, and salts thereof. Compounds prepared by...
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WO/2004/024675A1 |
The invention provides compounds of formula (I): useful in treating Alzheimer's disease and other similar diseases. These compounds include inhibitors of the beta-secretase enzyme that are useful in the treatment of Alzheimer's disease a...
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WO/2004/016348A1 |
The invention provides systems and methods for conducting reactions in which a reactant contacts a tethered catalyst and/or tethered chiral auxiliary in a microchannel and is converted to product.
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WO/2004/016581A1 |
Processes for the preparation of 4-[[4-[[4-(2-cyanoethenyl)-2,6-dimethylphenyl]amino]-2-pyrim
idinyl]amino]benzonitrile of formula (I), a N-oxide, a pharmaceutically acceptable acid addition salt, a quaternary amine or a stereochemically...
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