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WO/2003/082791A1 |
A method for the manufacture of halophthalic acid by liquid phase oxidation of haloortho-xylene is disclosed. The halophthalic acid may be dehydrated to form halophthalic anhydride which is useful in the synthesis of polyetherimide.
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WO/2003/072544A1 |
A process for preparing an anhydrous benzoate salt in crystallineform having formula (I) and the corresponding benzoate monohydrate in crystalline form. The benzoate salts and pharmaceutical compositions thereof are selective kappa-recep...
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WO/2003/066565A1 |
The invention relates to deuterated biphenyl derivatives and deuterated precursors for the production of said compounds. Deuterated biphenyl derivatives are important intermediate products in the synthesis of medicaments which can, for e...
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WO/2003/059510A2 |
Disclosed are manganese(IV) complex salts of formula [LMn(µ−O)3MnL)]n[XM12O40]m, (I), wherein L is 1,4,7−trimethyl−1,4−7−triazacyclononane, X is P or Si, M is Mo or W, n is 2 or 3, and m is 1 or 2, with the provisos that (i) i...
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WO/2003/055599A1 |
One aspect of the invention relates to a catalyst composite containing an extruded catalyst support containing an extruded activated carbonaceous material having specifically a defined pore structure. For example, the extruded activated ...
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WO/2003/053904A2 |
The invention generally relates to a method for purifying a mixture of crude aromatic acids comprising at least one benzene carboxylic acid and at least one napthalene carboxylic acid. The purification method of the present invention pro...
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WO/2003/048099A1 |
A method for the production of ammonium salts of aromatic carboxylic acids by reaction of an aromatic carboxylic acid with ammonia in an aprotic solvent is disclosed. Said reaction is carried out in a closed vessel and a solution of the ...
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WO/2003/045887A1 |
The invention relates to carbonated alkaline earth metal carboxylates that are neutral, meaning they have a base value of less than 10 mg KOH/g, and that are derived from a mixture of, preferably branched, optionally cyclic, C¿4?-C¿40?...
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WO/2003/031689A1 |
Disclosed is a method and solvent composition capable of removing iron oxide deposits from the surface of titanium components without substantially damaging the underlying titanium component. Iron oxide deposits may be removed from the s...
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WO/2003/027050A2 |
A process for preparing substituted pentacene compounds comprises the step of cyclizing substituted bis(benzyl)phthalic acids using an acid composition comprising trifluoromethanesulfonic acid, the substituted bis(benzyl)phthalic acids b...
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WO/2003/022791A1 |
The invention is directed to a process for the preparation of 2,6-naphthalenedicarboxylic acid by liquid phase oxidation in acidic solution of 2,6-dimethylnaphthalene in the presence of a cobalt-manganese-bromine-catalyst. An oxygen cont...
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WO/2003/020684A1 |
The present invention describes immobilized haloenamine reagents, immobilized tertiary amides, methods for their preparation, and methods of use.
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WO/2003/018552A2 |
The present invention is directed to protected amino acid halide monomers and oligomers, and to their use in the efficient sythesis of polyamides. The present invention is further directed to the use of -haloenamine reagents, which may o...
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WO/2003/016252A2 |
A composition containing isomeric mixtures of arylaldehydes prepared from a mixed alkyl aromatic feedstock. A composition containing isomeric mixtures of dimethylbenzaldehydes prepared from a mixed xylene feedstock using a Gatterman-Koch...
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WO2002088148B1 |
The ability to design and construct solid-state materials with pre-determined structures is a grand challenge in chemistry. An inventive strategy based on reticulating metal ions and organic carboxylate links into extended networks has b...
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WO/2003/004473A1 |
Butadiene derivatives represented by the general formula [I] and having excellent PAI−1 inhibitory activity and so on, or pharmacologically acceptable salts thereof&semi a process for preparing the derivatives or the salts&semi and int...
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WO/2002/102413A2 |
The invention relates to alkali or alkaline earth metal benzoate particles having a mean particle diameter (d¿50?) smaller than 500 $g(m)m and a flow value according to the vessel method of $m(F) 4 and to a fluidized-bed spray granulati...
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WO/2002/098836A1 |
Disclosed is a process for the production of terephthalic acid by a plurality of process steps including the catalyst oxidation of a dialkylbenzene compound, a second oxidation, a hydrogenation of the product of the second oxidation, and...
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WO/2002/098835A1 |
Disclosed is a method for the recovery of crystalline therephthalic acid containing less than 150 ppmw p-toluic acid by subjecting a solution of therephthalic acid containing minor amounts of p-toluic acid to crystallization in a crystal...
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WO/2002/098834A1 |
Disclosed is a process for producing a benzenedicarrboxylic acid such as terephthalic acid wherein a dialkyl benzene compound and acetic acid having catalyst components dissolved therein are fed to a first reaction zone wherein the dialk...
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WO/2002/094760A2 |
Process for the preparation of compounds of formula (I) wherein R is halogen, R¿1?O¿1?R¿1?S(O)¿n? or (R¿1?)¿2?NC(X)O; R¿1? is C¿1?-C¿8?alkly, aryl-C¿1?-C¿8?alkyl, C¿1?-C¿8?haloalkyl or aryl; n is 0, 1, 2 or 3; X is O or S; a...
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WO/2002/081083A1 |
The invention concerns a catalyst support comprising a monolithic body (1) with a first network of channels (2). The invention is characterised in that the support comprises at least an additional network of channels (3) in an arrangemen...
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WO/2002/081047A1 |
The invention relates to a method for eliminating oxygenated organic molecules, such as organic acids and alcohols, which are present in a liquid or gaseous organic effluent. The inventive method is characterised in that the elimination ...
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WO/2002/079134A1 |
The present invention relates to a process for the manufacture of compounds of general formula (I), wherein R?2a¿, R?2b¿ are, independently from each other, hydrogen; halogen; lower alkoxy; cyano; -COOH; lower alkoxycarbonyl; or lower ...
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WO/2002/074718A2 |
The invention relates to a method for separating close-boiling homo and heteroazeotropic mixtures using ionic liquids. The method is superior to conventional extractive rectification in terms of cost-effectiveness and exergetic aspects a...
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WO2001016078A9 |
In a process for producing aromatic dicarboxylic acids which includes a disproportionation reaction, a process for separating the disproportionation product solids from the reaction medium, said solids exiting said disproportionation rea...
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WO/2002/070526A1 |
The invention relates to a method for producing an organometallic building material, comprising reacting, in the presence of a base and a solvent, a fluid mixture that contains a metal salt having at least one bidentate organic compound ...
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WO/2002/070119A1 |
A reaction system of organic substance employing a supercritical fluid or a sub-critical fluid and operable industrially with a high energy efficiency in which a reactive substance, e.g. an organic substance, can be injected in uniform s...
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WO/2002/060851A1 |
The invention relates to a method for cleaning crude terephthalic acid by means of catalytic, hydrogenating aftertreatment using a catalyst material containing at least one hydrogenation metal applied to a carbon carrier consisting of ca...
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WO/2002/055468A1 |
Improved process for producing carboxylic acids or their esters by catalytic liquid phase oxidation of a corresponding precursor in a suitable solvent comprising feeding the reactants to a first oxidation reaction zone at high pressure a...
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WO/2002/055467A1 |
The present invention relates to a method for increasing the production capacity of a conventional oxidation reactor for catalytic liquid phase oxidation of paraxylene by staging the oxidation reaction into a first high pressure and high...
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WO/2002/055480A2 |
Described are 6-substituted indanoyl amino acid conjugates of the chemical Formula (I) wherein R¿1?= (II), R¿2? R¿5? have the meanings given in the description, and X = a halogen atom; as potent plant elicitors and efficient mimics of...
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WO/2002/051785A1 |
Benzoic acid particles with a particle size substantially between 0.3 and 3 mm, a total diphenyl content substantially less than 300 ppm calculated relative to the amount of benzoic acid, and a total content of phthalic acid and phthalic...
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WO/2002/048072A2 |
A method of performing a one-pot organic reaction including carbon monoxide as reactant without the use of an external CO gas source is described wherein a reaction mixture containing a solid or liquid CO releasing compound, a non-metal ...
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WO/2002/042251A1 |
Novel aromatic carboxylic acids and acid halides thereof, useful as raw materials for polymers, particularly heat-resistant condensation polymers; and processes for preparing the acids or the halides. The carboxylic acids and the acid ha...
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WO/2002/036526A1 |
A method of determining the optimal yield of a target compound comprises: (a) determining the initial composition of a mixture of compounds containing the target compound; (b) dissolving the mixture in a solvent; (c) placing a quantity o...
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WO/2002/030862A1 |
A process for the oxidation of an alkyl-aromatic compound, wherein the aromatic compound is admixed with an oxidising agent or sulfur compound in the presence of an ionic liquid is described. In this process, air, dioxygen, peroxide, sup...
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WO/2002/028810A2 |
The current invention provides novel retinoid compounds and methods for their synthesis, the use of such compounds for the preparation of medicaments for treating or preventing emphysema, cancer and dermatological disorders, methods for ...
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WO/2002/026701A2 |
Ionic compounds with a freezing point of up to 100 °C are formed by the reaction of an one amine salt of formula (I) R?1¿ R?2¿ R?3¿ R?4¿ N?+¿ X?-¿, such as choline chloride with an organic compound (II) capable of forming a hydrog...
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WO/2002/024611A2 |
The invention relates to chemistry, in particular to methods for exuding humic substances (in the form of acids and their salts) from natural humified materials. The inventive method for exuding the humic substances from the natural raw ...
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WO/2002/016298A1 |
A supported gold catalyst is used for selective oxidation. In particular, an alcohol or ketone is oxidized to produce the corresponding carboxylic acid, an alcohol is oxidized to produce the corresponding ketone, and xylene is oxidized t...
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WO/2002/016300A1 |
The invention relates to a method for the catalytic vapour-phase partial oxidation of aromatic hydrocarbons to form carboxylic acids or carboxylic acid anhydrides at an increased temperature. According to said method, a vapour stream cha...
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WO/2002/010228A2 |
Polymeric materials are recycled by transformation to useful chemicals by oxidization in the liquid phase using acetic acid as a solvent and a metal bromide catalyst.
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WO/2002/006201A1 |
A process for the production of an aromatic carboxylic acid comprising contacting in the presence of a catalyst, within a continuous flow reactor, one or more precursors of the aromatic carboxylic acid with an oxidant, such contact being...
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WO/2001/092273A2 |
New benzenedicarboxylic acid derivative compounds; pharmaceutical compositions, diagnostic methods, and diagnostic kits that include those compounds; and methods of using those compounds for inhibiting NAALADase enzyme activity, detectin...
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WO/2001/083421A1 |
A process for the preparation of 2-halobenzoic acids of the general formula (I), characterized by reacting a benzoic acid of the general formula (II) with a halogenating agent in the presence of a Pd catalyst. [In the formulae, A is -OH,...
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WO/2001/083438A2 |
New RAR selective retinoid agonists of formula (I) wherein the symbols are as defined in the specification, and pharmaceutically active salts of carboxylic acids of formula (I), further the invention relates to the use of such retinoic a...
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WO/2001/081272A1 |
The inventive humin-mineral concentrate is produced from a water suspension which comprises salts of humic acid and fine humin-mineral particles and complexes, whose content represents 1.5-20 mas % of the mass of salts. Salt electrolysis...
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WO/2001/079148A2 |
A method of making a benzoyl halide is disclosed. Into a reactor is placed a reaction mixture of a benzotrihalide and a benzaldehyde having the respective general formulas (1) and (2), where each A is independently selected from halogen,...
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WO/2001/070663A2 |
This invention relates to novel aldehyde containing compounds and their uses as adjuvants and immunoeffectors.
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