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Matches 351 - 400 out of 1,702

Document Document Title
WO/1996/036588A1
The present invention provides a process for the preparation of substituted aromatic amino compounds which are substituted by at least one -CN multiple bond or a carbonyl group on the aromatic radical or in side chain, by catalytic hydro...  
WO/1996/030320A1
The present invention relates to a novel process for preparing cis-4-O-protected-substituted-2-cyclopentenol derivatives comprising, (a) dissolving a 4-O-protected-2-cyclopentenone in a suitable organic solvent; and (b) treating the solu...  
WO/1996/028250A1
A titanium catalyst for use in the reaction between unsaturated carbon-to-carbon bonds and a compound having an electrophilic functional group or an electrophilic agent, which catalyst comprises a titanium compound represented by the gen...  
WO/1996/027575A1
A process for the reduction of carbonyl compounds comprises mixing the carbonyl compound and an alcoholic reagent, and bringing the mixture to a temperature above 200 �C. The temperature may be higher than the critical temperature of t...  
WO/1996/025390A1
A method of producing compounds of formula (I), wherein one of R1 and R2 is selected from -OH, -SH, and -NHR7; and the other of R1 and R2 is selected from H, -OH, -SH, -NHR7 and R8; R3 and R4 are each independently selected from R8; n an...  
WO/1996/023754A1
This invention relates to a method for preparing difluoromethyl ethers, thiols and amines without using chlorofluorocarbon gases. The intermediates prepared by this method can be used to make certain compounds which act as PDE IV inhibit...  
WO/1996/022832A1
A composition for use as a reduction catalyst, comprising a support consisting of at least one oxide selected from oxides that are inert or inertable with respect to the reaction mixture, and a phase at least partially covering said supp...  
WO/1996/022271A1
The present invention is a process for the scission and oxidation of ozonide materials. The process comprises introducing an oxygen-containing gas stream into an agitated liquid body in the form of fine bubbles.  
WO/1996/020234A1
In a process for opening the ring of epoxide compounds with nucleophiles, the reaction is carried out in the presence of fluorinated alkane-sulphonic acids, in particular trifluoromethane-sulphonic acid, that act as catalysts.  
WO/1996/014287A1
A method for preparing carboxylic acids by carbonylating a reagent, particularly an alcohol, in the presence of a rhodium catalyst. According to the method, the liquid phase reaction is carried out in a first zone in the presence of a rh...  
WO/1996/014150A1
The invention relates to a device for bringing solids in the form of pourable pieces into contact with liquids, or solids into contact with liquids and gases, in a reactor by putting the reactands together. The reactor has a housing cont...  
WO/1996/014310A1
The invention pertains to a method for preparing 8'alpha',12-oxido-13,14,15,16-tetranorlabdanum by cyclizing a mixture of compounds (I) to (III), wherein the cyclization is carried out in the presence of 10 to 100 wt.% acid, relative to ...  
WO/1996/009350A1
A process for the production of low molecular weight phenolic compounds from lignins through the pyrolysis of the lignins in the presence of a strong base. In a preferred embodiment, potassium hydroxide is present in an amount of from ab...  
WO/1996/005184A1
The invention pertains to novel herbicidally effective saccharin carboxylic acids or carboxylic acid esters of formula (Ia), in which the substituents are as follows: L, M are hydrogen, C1-C4 alkyl, C1-C4 alkoxy C1-C4 alkylthio, chlorine...  
WO/1996/005206A1
The present invention relates to an improved process for the in situ preparation of diisopinocampheylchloroborane which comprises reacting sodium borohydride and boron trichloride with 'alpha'-pinene. The diisopinocampheylchloroborane th...  
WO/1996/003363A1
Olefines are hydroformylated in the presence of rhodium-diphosphine complex compounds as catalysts. The diphosphines have a (Casey) angle of nip of 100 to 160� and a (Tolman) approach angle of 120 to 240 �C and the isomer energy diff...  
WO/1996/001304A1
A typical traditional reactor for hydrogenation consists of a tank filled with a liquid and a gas and a small particle catalyst. The reaction is carried out at high pressures and high temperatures. Lack of gas on the catalyst surface lim...  
WO/1995/031450A1
A process for synthesizing enantiomerically pure chiral secondary alcohol compounds linked to a heterocyclic core moiety, using a natural chiral molecule starting material. The inventive process is particularly useful for bulk manufactur...  
WO/1995/026928A1
Vanadium-containing Beta zeolite, and its use as catalyst in organic reactions.  
WO/1995/018781A1
Method for synthesizing oligomers containing hydroxy acids, and optionally containing other types of monomers or oligomers such as amino acids, carbohydrates, nucleotides and peptides, are provided which are rapid, simple, and readily au...  
WO/1995/018082A1
An ozonide reducing agent to be used in the ozonolysis of organic compounds, which has a wide application area and is industrially safe, inexpensive, and easy to aftertreat. The agent is a compound bearing a sulfur atom and, bonded there...  
WO/1995/017963A1
Process for producing an iridium solution, characterized in that a carbonylated iridium compound is contacted, in liquid phase, with hydriodic acid or its precursor in the presence of a solvent, at a global pressure of 1 to 5 bars and at...  
WO/1995/015321A1
The invention relates to a process for producing 8'alpha',12-oxido-13,14,15,16-tetranorlabdane through the cyclizing dehydration of 8'alpha',12-dihydroxy-13,14,15,16-tetranorlabdane in the presence of aluminophyllosilicates.  
WO/1995/011230A1
A process for the preparation of an oxirane, aziridine or cyclopropane of formula (I) wherein, X is oxygen, NR4 or CHR5; R1 is hydrogen, alkyl, aryl, heteroaromatic, heterocyclic or cycloalkyl; R2 is hydrogen, alkyl, aryl, heteroaromatic...  
WO/1995/009139A1
A process for the oxidation of alkylaromatic compounds is provided. The process comprises oxidising a substrate alkylaromatic compound with a peroxygen compound in the presence of a source of cerium (III) or (IV), a source of bromide and...  
WO/1995/008391A1
Catalysts of general formula (I): [AaBbOx]p [CcDdFeeCofEiFjOy]q, in which the variables have the following meanings: A = bismuth, tellurium, antimony, tin and/or copper; B = molybdenum and/or tungsten; C = an alkaline metal, thallium and...  
WO/1995/005354A1
Process for the hydroformylation of ethylenically unsaturated compounds, by reaction with carbon monoxide and hydrogen in the presence of a catalyst based on a metal of the platinum group, a source of anions other than halide anions and ...  
WO/1995/003249A1
In the manufacture of a substituted Beta zeolite, a high ethene pressure, is used advantageously accompanied by synthesis gel ageing and low aluminium content.  
WO/1995/002567A1
A catalytic asymmetric reduction process, which, by hydrogenating trisubstituted olefins, yields a corresponding organic compound having a high level of enantiomeric purity is disclosed. The process is also effective for the catalytic as...  
WO/1994/029018A1
An exothermic chemical reaction, for example, hydroformylation, is carried out in a series of loop reactors (10, 20, 30). Fresh reactant feed is supplied not only to the first reactor (10) in the series but also to the second reactor (20...  
WO/1994/020448A1
In the method proposed for the production of monocarboxylic acids from carbohydrates, carbohydrate derivatives or primary alcohols, the carbohydrates, carbohydrate derivatives or primary alcohols are oxidized continuously in aqueous solu...  
WO/1994/020207A1
An exothermic process for forming a product which may be in a liquid phase is disclosed wherein a first reactant (3), preferably a liquid reactant, is directly fed into a reaction zone (10) containing mixing elements (12, 58) and which c...  
WO/1994/006736A1
A sensitized photooxygenation process of unsaturated compounds uses fullerenes as sensitizers.  
WO/1994/002245A1
New titanium zeolite Beta catalysts which have been found to be useful as catalysts for the oxidation of organic compounds using organic hydroperoxides as oxidation catalysts. They are particularly useful as ring opening oxidation cataly...  
WO/1994/000407A1
Fluoro-substituted aromatic carboxylic acids, and particular 2- and 4-fluorobenzoic acid can be made from the corresponding fluoro-methyl compound such as fluorotoluene in a single stage by reaction at elevated temperature, preferably of...  
WO/1993/024263A1
Novel zerovalent metal species and organometallic reagents are disclosed. The zerovalent metal species are directly produced by reaction of a reducing agent on a metal cyanide salt. Preferably, the zerovalent metal species are directly p...  
WO/1993/023408A1
The borane reduction of prochiral ketones to optically pure alcohols is effectively achieved by the utilization of catalytic amounts of the new and valuable oxazaborolidine catalysts of formula (I).  
WO/1993/022266A1
A process for alkoxylation of organic compounds containing at least one active hydrogen which process comprises reacting said organic compound with an alkylene oxide in the presence of a catalytically effective amount of a catalyst compr...  
WO/1993/010897A1
Proposed is a method of producing alkaline-earth phosphates containing hydrophobic groups by reacting alkaline-earth phosphates with fatty acids. The products are suitable for use as alkoxylation catalysts in the manufacture of narrow-ra...  
WO/1993/003839A1
This invention relates to asymmetric syntheses in which a prochiral or chiral compound is contacted in the presence of an optically active metal-ligand complex catalyst to produce an optically active product.  
WO/1993/002991A1
A process for ozonizing an unsaturated fatty acid or a lower alkyl ester thereof, which comprises flowing a thin-film stream of the acid or ester and a gas comprising ozone and oxygen or a mixture of oxygen with air or an inert gas in th...  
WO/1992/019623A1
A novel zerovalent copper species and an organocopper reagent are disclosed. The zerovalent copper species is directly produced by reaction of a reducing agent with a combination of copper cyanide or halide and an alkali metal halide sal...  
WO/1992/017430A1
Alkoxylates of active hydrogen compounds having a peaked molecular weight distribution are prepared by reacting the active hydrogen compound with an alkylene oxide of from 2 to 4 carbon atoms using iron oxides as alkoxylation catalysts.  
WO/1992/017405A1
Hydrophobised double-layer hydroxide compounds may be produced if double-layer hydroxide compounds of general formula (I): [M?(II)��1-x?M?(III)��x?(OH)�2?] A�x? * n H�2?O, in which M?(II)� is a divalent metal cation, M?(I...  
WO/1992/009545A2
A process is provided whereby organic carbonyl substrates, including esters, ketones and amides, are reduced in a reaction with a silane reducing reagent and a catalyst. According to the invention esters and ketones can be reduced to alc...  
WO/1991/019559A1
In a process for carrying out an equilibrium reaction, one or more products are removed by vapour permeation. To obtain high reaction rates at high reaction temperatures, the reaction is carried out in a bubble reactor (1) and the lower ...  
WO/1991/015441A1
The use of hydrophobised hydrotalcites of general formula Mg�x?Al(OH)�y?(CO�3?)�m?(A)�n? . z H�2?O, in which A is the dianion of an aliphatic dicarboxylic acid with 4 to 44 carbon atoms or two anions of aliphatic monocarboxyl...  
WO/1991/013051A1
The use of strontium and/or barium acetyl acetonates as catalysts for the ethoxylation or propoxylation of compounds with active H atoms results in a narrow distribution of the homologs of the ethoxylation or propoxylation products.  
WO/1991/011419A1
A process for oxidizing an organic compound selected from an aliphatic, aromatic, aliphatic/aromatic, cycloaliphatic and heterocyclic alcohol, thiol, sulfide, aldehyde, amine, amide, ketone, acid, ether, ester, and organic compounds cont...  
WO/1991/009822A1
Continuous process for the telomerization of conjugated dienes comprising reacting a conjugated diene with a compound containing an active hydrogen atom in the liquid phase in the presence of a Group VIII transition metal catalyst and a ...  

Matches 351 - 400 out of 1,702