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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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WO/2004/014821A1 |
The present invention relates to a novel method for the preparation of diol intermediates having the formula (II) and/or the opposite enantiomer of an acylated diol having the formula (IV) useful for the preparation of escitalopram invol...
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WO/2004/013082A2 |
The invention relates to methods for producing 4-[aminoalkoxy]benzylamines of general formula (I) by means of catalytic hydrogenation of 4-[aminoalkoxy]benzonitriles of general formula (II). In the compounds of general formulae (I) and (...
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WO/2004/013094A2 |
One aspect of the present invention relates to copper-catalyzed carbon-heteroatom and carbon-carbon bond-forming methods. In certain embodiments, the present invention relates to copper-catalyzed methods of forming a carbon-sulfur bond b...
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WO/2004/009535A1 |
The invention enables reduction of catalyst in producing tetrafluorobenzonitrile by decyanation of one cyano group of tetrafluorodicyanobenzene by using a synthetic zeolite, particularly Zeolite 3A, 4A or 5A, in the reaction. Therefore t...
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WO/2004/007433A1 |
A process for production of acylacetonitriles represented by the general formula (1) [wherein R1 is (C1-6 alkoxy)C1-4 alkyl or the like; X is halogeno, C1-6 alkyl, or C1-4 haloalkyl; Y is halogeno, C1-6 alkyl, or C1-4 haloalkyl; m is an ...
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WO/2004/007435A2 |
The invention concerns a method for hydrocyanation of ethylenically unsaturated organic compounds comprising at least one nitrile function. It concerns more particularly hydrocyanation of diolefins such as butadiene or substituted olefin...
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WO/2004/007071A1 |
The present invention provides a method for producing a catalyst comprising an inert carrier an a mixed metal oxide as a catalytically active component supported on the inert carrier, the method comprising the steps of: a) adding organic...
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WO/2004/007431A1 |
The invention relates to a method for the recycling of a Lewis acid from a reaction mixture (I), obtained from the hydrocyanation of an olefinically-unsaturated compound to give a nitrile, which has a miscibility gap with water under cer...
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WO/2004/007434A1 |
Process for the recovery of substantially pure adiponitrile (ADN) from a mixture of adiponitrile, aminocapronitrile and hexamthylenediamine, comprising two sequential distillations, the first of which involves distilling the mixture in a...
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WO/2004/007432A1 |
The invention concerns a method for hydrocyanation of ethylenically unsaturated organic compounds into compounds comprising at least one nitrile function. It concerns particularly hydrocyanation of diolefins such as butadiene or substitu...
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WO/2004/002925A2 |
The present invention relates to a method for preparing optically active (R)-aryloxypropionic acid ester derivatives, and more particularly to a method for preparing (R)- aryloxypropionic acid ester derivatives with high optical purity a...
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WO/2004/002924A1 |
A process and intermediates for producing 3-amino nitriles. The process involves resolving an enantiomeric mixture of chiral 3-amino nitriles in the presence of a chiral acid in a solvent system to produce a chiral 3-amino nitrile salt. ...
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WO/2004/000792A1 |
The present invention is related to a process for the preparation of 3-cyano-1-naphthoic acid and some analogues thereof of formula (1), the intermediate 1-halo-3-cyano naphthalene and some analogues thereof used in this process and a pr...
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WO/2004/000779A1 |
A process for producing a phenyloxocarboxylic ester derivative which comprises reacting an aromatic hydrocarbon with a carboxylic acid anhydride derivative in the presence of an acid catalyst and an alkylating agent. By the process, the ...
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WO/2003/106406A1 |
A process for producing 4'−bromomethyl−2−cyanobiphenyl, characterized by reacting 4'−methyl−2−cyanobiphenyl with bromine in the presence of a free−radical initiator and an oxidizing agent. By the process, the hydrogen bromi...
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WO/2003/106380A2 |
The present invention is concerned with fluorobenzamide derivatives of the general formula, wherein R1 is hydrogen, (C1-C6)-alkyl or hydroxy-(C1-C6)-alkyl; R2 is (C1-C6)-alkyl, -CO-NR8R9, -(CH2)n-NR8R9, -(CH2)P-OR8, or -(CH2)n-CN; R3 is ...
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WO/2003/106415A2 |
The invention provides novel processes for making ethyl-4-cyano-3-hydroxybutyrate, e.g., (R)-ethyl 4-cyano-3-hydroxybutyric acid, and 4-cyano-3-hydroxybutyric acid. The invention provides protocols for making and 4-cyano-3-hydroxybutyric...
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WO/2003/106379A1 |
The invention relates to a method for exchanging substituents in organic compounds, for example, chlorine for fluorine. The method involves the use of a catalyst of formulas (IVa), (IVb) or (IVc), wherein: radicals R2 to R17, independent...
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WO/2003/104187A1 |
The invention relates to compounds of the general formula: (I) and optionally the enantiomers thereof. The active ingredients have advantageous pesticidal properties. They are especially suitable for controlling parasites on warm-blooded...
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WO/2003/101938A1 |
This invention relates to a oxamidination method of carbonyl compounds comprising reacting a liquid-phase reaction system containing carbonyl compounds, ammonia and hydrogen peroxide in the presence of silicon containing catalyst, which ...
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WO/2003/101940A2 |
The aim of the invention is to prevent the appearance of odour-intensive minor constituents during the production and storage of solutions of cationic nitriles of general formula (I) wherein R1 represents -H, -CH3, a C2-24 alkyl or alken...
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WO/2003/099768A1 |
The invention relates to a method for reducing the content of an aliphatic, monounsaturated amine (IV) in a mixture (V) containing an aminonitrile (I) or a diamine (II) or a dinitrile (III) or mixtures thereof and amine (IV), whereby: a)...
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WO2002088069A9 |
This invention relates compounds of formulae Wherein A is CN,CONH>2< OR CONHCOOR, R being methyl or optionally substituted benzyl, useful as intermediates for cholesteryl ester transfer protein (CETP) inhibitors and methods for the prepa...
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WO/2003/099435A2 |
A vanadium catalyst and a process for cyanating an aldehyde are provided. The vanadium catalyst comprises a Vanadium(V) salen complex. The process comprises reacting the aldehyde with: i) a cyanide source which does not comprise a Si-CN ...
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WO/2003/097583A1 |
A process for increasing the yield of acetonitrile produced during the manufacture of acrylonitrile comprising introducing a hydrocarbon selected from the group consisting of propylene and propane, a carboxylic acid, ammonia and air into...
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WO/2003/097582A2 |
Benzonitrites and benzimidates represent important intermediates and starting materials, which are typically not commercially available. The present invention discloses a facile synthesis for 2,4-dihydroxybenzonitrile, and ethers and die...
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WO/2003/097584A1 |
Disclosed is a method for the catalyst-free production of alkoxybenzonitriles by substituting monohalogenated initial compounds of general formula (I), in which X represents Cl or Br and Y represents H, alkyl, or aryl. The inventive meth...
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WO/2003/097585A2 |
The invention relates to compounds of the general formula (I) wherein R1, R2, R3, R4, R5, R6, R6, R8, R8', R9, W, X, A1, A2, a, b and c have the significances given in claim 1, and optionally the enantiomers thereof. The active ingredien...
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WO/2003/097581A1 |
The present invention relates to a continuous process for the cyanation of hydrogenated β-ketoesters in a cyanation zone maintained under conditions of temperature and pressure effective for cyanation of a hydrogenated R-ketoester. A su...
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WO/2003/097588A2 |
Hexafluoroisobutylene and its higher homologs are easily reacted with SO3 to give fluorosulfates of the formula CH2=C(R)CF2OSO2F, wherein R is a linear, branched or cyclic fluoroalkyl group comprised of 1 to 10 carbon atoms and may conta...
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WO/2003/097622A2 |
The present invention provides methods of preparing 2-alkylcysteine derivatives, many of which can be performed stereoselectively. The present invention also discloses a method of preparing a class of iron chelating agents related to des...
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WO/2003/093212A1 |
A process for producing a (fluoroalkyl)benzene derivative which comprises: a step in which the total content of transition metals in Groups 3 to 12 in an alkylbenzene derivative is regulated to 500 ppm or lower in terms of the amount of ...
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WO2003064035B1 |
The invention relates to a method for the oxidative dehydrogenation of ethane. The inventive method is characterised in that it consists in bringing the ethane into contact with a catalyst containing Mo, Te, V, Nb and at least a fifth el...
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WO/2003/091203A1 |
The invention relates to a method for producing 3-trifluoromethylphenyl-4-cyanobenzyl ketone by reacting a 3-trifluoromethyl benzoic acid-C1-C2-alkyl ester with 4-tolunitrile in an aprotic polar solvent or in an aprotic polar solvent mix...
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WO/2003/089407A1 |
The invention relates to a method for producing unsaturated nitriles from alkanes comprising the following steps: a) introducing the alkane and oxygen-containing gas into a dehydrogenation zone and autothermally dehydrogenating the alkan...
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WO/2003/087032A1 |
Compounds are described, having general formula (I) and their use as acaricides, insecticides and/or fungicides.
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WO/2003/087041A1 |
A fully continuous process for the manufacture of 3-hydroxypropionitrile, which process comprises (a) an addition reaction where acrylonitrile and water are reacted in the presence of a weak base to form a reaction mixture of 3-hydroxypr...
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WO/2003/087167A2 |
The invention pertains to the use of Group 8 transition metal alkylidene complexes as catalysts for olefin cross-metathesis reactions. In particular, ruthenium and osmium alkylidene complexes substituted with an N-heterocyclic carbene li...
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WO/2003/082810A1 |
A method of separating isophthalonitrile from a reaction gas obtained by reacting m−xylene, ammonia, and an oxygenic gas in the presence of a catalyst, which comprises contacting the reaction gas with an organic solvent having a lower ...
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WO/2003/080565A1 |
A process of preparation of phenyl methyl compound of general formula (IA) comprising condensation of phenyl acetonitrile or its derivatives of formula (III) and cycloalkanone (IV) in the presence of a phase transfer catalyst (PTC) and a...
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WO/2003/078385A1 |
Process for making 5FVN, comprising contacting in a reactor 3PN with CO and hydrogen in the presence of a catalyst, the catalyst comprising recycled catalyst that is reactivated using hydrogen.
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WO/2003/076382A1 |
The invention relates to a method for the measurement of the pressure in a gas phase from rectification and/or absorption columns comprising (meth)acrylic acid the esters and/or nitriles thereof by means of open drillings in the column w...
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WO/2003/076394A1 |
Disclosed herein are processes for hydrocyanation and isomerization of olefins by using at least one multidentate phosphonite ligands, including organometallic phosphonite ligands with a Group VIII metal or Group VIII metal compound, and...
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WO/2003/076406A1 |
Compounds of formula (I) in which each of the phenyl rings represented is optionally substituted one or more times; n represents an integer selected from 0, 1, 2, 3, 4 and 5; W represents -CO-or -SO2-; Z represents H; alkyl; aryl; or ary...
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WO/2003/074448A2 |
A method for preparing a product from non-product streams, such as waste or byproduct liquid streams, uses a phase transfer catalyst to enhance the reaction between two or more constituents each from a separate non-product stream. Since ...
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WO/2003/070677A1 |
The invention provides a method for the preparation of a dicarbonyl compound of formula (I) R1COCFR2COR3 wherein R1 is selected from alkyl, substituted alkyl, cycloalkyl, aryl, substituted aryl and acetoxy, R2 is selected from hydrogen, ...
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WO/2003/070689A2 |
The present invention is directed to a 3-dimensional optical memory comprising as an active medium a compound capable of interconverting from one isomeric form to another by interaction of light. Said compound is bound to a polymer for a...
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WO/2003/070666A2 |
A method for preparing organic products from aqueous solutions, such as waste or byproduct liquid streams and waste or byproduct gas or vapor streams, uses phase transfer catalysis to transfer a chemical species in low concentration from...
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