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WO/1999/065606A1 |
The invention relates to a catalyst comprising at least one complex of a metal of subgroup VIII which comprises at least one monodentate, bidentate or multidentate phosphinite ligand. The phosphorus atom and the oxygen atom of the phosph...
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WO/1999/065852A1 |
4,8-cyclododecadienyl ketones having formula (I), in which R has up to 5 carbon atoms, are novel compounds exhibiting woody/amber odour characteristics which find use in perfumes and in perfumed products.
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WO/1999/064387A1 |
A process for separating a formaldehyde-containing product from a formalin solution comprising formaldehyde, water and methanol, wherein said formaldehyde-containing product contains substantially less water than said formalin solution, ...
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WO/1999/062855A1 |
Supported bis(phosphorus) ligands are disclosed for use in hydroformylation reactions, including the hydroformylation of olefins. Catalysts are formed when the ligands are complexed with a catalytically active metal (e.g., rhodium or iri...
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WO/1999/061401A1 |
The invention relates to a method for the catalytic hydroformylation of olefins by reacting an olefin with hydrogen and carbon monoxide in a liquid, aqueous-organic reaction medium in the presence of a water-soluble hydroformylation cata...
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WO/1999/061410A1 |
This invention provides compounds of Formula (I) having structure (I) wherein: B and D are each, independently, hydrogen, halogen, alkyl of 1-6 carbon atoms, cycloalkyl of 3-8 carbon atoms, aryl, heteroaryl, aralkyl of 6-12 carbon atoms,...
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WO/1999/059961A1 |
The present invention relates to new non-cyclic analogues of crown ethers (podands), principally di(formylaryl)polyethers, as well as to their hydrazones comprising substituted hydrazines of formula (I) where Ar is substituted phenylen o...
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WO/1999/060003A1 |
The invention concerns novel water soluble furylphosphines. It also concerns organometallic complexes comprising said furylphospines and the use of said complexes. The invention further concerns the method for preparing water soluble fur...
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WO/1999/059951A1 |
1-chloro-3,3-dimethylbutane is oxidized by dimethyl sulfoxide, in the presence of an effective amount of inorganic bromide or iodide, and in the presence of an effective amount of base, to produce 3,3-dimethylbutyraldehyde.
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WO/1999/060004A1 |
The invention concerns novel organometallic complexes comprising cationic heterocyclic carbenes. It also concerns a method for preparing said complexes from dicationic heterocyclic precursor compounds. It further concerns the use as cata...
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WO/1999/059941A1 |
The invention concerns a method for orthometalation of a carbocyclic aromatic derivative bearing at least an electron donor group, characterised in that it consists in reacting said carbocyclic aromatic derivative with an efficient amoun...
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WO/1999/057123A1 |
The invention is directed to the process of purifying 4'-chloro-4-biphenylcarboxaldehyde.
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WO/1999/055655A1 |
A process for the catalytic conversion of methanol to formaldehyde wherein a gas stream containing methanol and oxygen is contacted with a silver catalyst in a first conversion zone containing a silver catalyst to produce an effluent con...
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WO/1999/052847A1 |
This invention relates to ketones, alcohols and amines represented by the likes of 3-(3-cyclopentyloxy-4-methoxyphenyl)-3-phenylethynylcyclobut
an-1-one. They are useful as PDE 4 antagonists.
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WO/1999/052629A1 |
The method of the present invention involves the in situ formation of metal-molibdate catalyst particles active for methanol oxidation to formaldehyde, with iron as an example, the catalyst is made by mixing particulate forms of Fe¿2?OÂ...
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WO/1999/052841A1 |
A process for producing aromatic compounds or polymers thereof from a plant body within a short period of time by a convenient procedure. More particularly, a plant body is treated with supercritical water or subcritical water to thereby...
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WO/1999/050207A1 |
The invention concerns a method for preparing 2-chloro-1-cyclohexyl-4-ethynylbenzene from 1-(3-chloro-4-cyclohexylphenyl) either by forming 3-chloro-3-(3-chloro-4-cyclohexylphenyl)propenal, $i(Z), a novel compound, or by the action of a ...
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WO/1999/050214A1 |
A process comprising subjecting at least one compound containing at least one carbon-carbon double bond or at least one carbon-carbon triple bond, hydrogen and carbon monoxide, to a hydrocarbonylation reaction in supercritical carbon dio...
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WO/1999/047481A1 |
The invention relates to a method for producing carbonyl compounds of formula (I), wherein R?1¿ is a hydrogen atom or an alkyl radical with 1 to 3 C-atoms and R?2¿ is a hydrogen atom, a C¿2?-C¿4?-alkenyl radical which can be unsubsti...
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WO/1999/046228A1 |
The invention concerns a method for producing formaldehyde from methanol by dehydrogenation in a reactor, in the presence of a catalyst which is input in the reactor by means of a carrier gas, at temperatures ranging between 300 to 1000 ...
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WO/1999/044975A1 |
The invention relates to a method for separating a mixture containing butane-1,4-diol and at least one other compound from the following group: 4-hydroxybutyraldehyde, its cyclical hemiacetal and its cyclical whole acetals with at least ...
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WO/1999/043640A1 |
The invention relates to a method for the selective hydrolysis of acetals in the presence of phthalides. According to said method a mixture (M) containing a) a phthalide of the formula (I) and b) an acetal or ketal of the formula (II) is...
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WO/1999/043646A1 |
Compounds of formula (I) wherein X is C=CH¿2? or CH¿2?; Y and Z are independently of each other hydrogen, fluorine or hydroxy; A is -C$m(Z)C-, -CH=CH- or -CH¿2?-CH¿2?-; R?1¿ and R?2¿ are independently of each other alkyl or perfluo...
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WO/1999/042211A1 |
An oxidation catalyst system comprising (A) a ruthenium compound and (B) a dihydroxybenzene or an oxidation product thereof. Examples of the ruthenium compound (A) include ruthenium complexes, e.g., dichlorotris(triphenylphosphine)ruthen...
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WO/1999/041219A1 |
Acylating agents comprising: (A) a 1,2-dicarbonyl compound or its hydroxy-reduction derivative; (B) an enzyme; and (C) at least one compound selected from among (c1) metal compounds and (c2) imide compounds such as N-hydroxyphthalimide. ...
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WO/1999/040079A1 |
This invention provides a process for the preparation of a racemic mixture of dysidiolide a method for inhibiting growth of cancerous cells comprising contracting an amount of the racemic mixture of dysidiolide effective to inhibit the g...
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WO/1999/038822A1 |
A process for the synthesis of chemical industrial feedstock and high-octane fuel, wherein calcium phosphate which is controlled in the molar Ca/P ratio and/or one which contains an activating metal (M) at a molar (Ca + M)/P ratio of 1 t...
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WO/1999/038832A1 |
This invention relates to a process for separating one or more products from a reaction product fluid comprising a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, a nonpolar solvent and said one o...
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WO/1999/038833A1 |
Process for the bromination and chlorination of aldehydes and ketones, comprising reacting the aldehyde or ketone with bromine or chlorine in oleum, optionally in the presence of iodine. The amount of iodine employed can vary from about ...
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WO/1999/036382A1 |
The invention relates to a method for the production of aldehydes or aldehydes and alcohols by hydroformylation of olefins in the presence of a complexing catalyst homogeneously dissolved in a reaction mixture, containing a metal of Grou...
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WO1999016736A9 |
A method wherein a sour natural gas stream can be treated to produce formaldehyde from methane and methyl mercaptans, (primarily methanethiol (CH3SH) and a small amount of dimethyl sulfide (CH3SCH3)) from hydrogen sulfide, and the methyl...
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WO/1999/035112A1 |
The invention relates to a process for the preparation of neopentyl glycol by hydrogenation of hydroxypivaldehyde (HPA) in the presence of hydrogen and a hydrogenation catalyst at an elevated temperature. According to the invention, hydr...
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WO/1999/035116A1 |
Certain diterpenes as well as extracts or concentrates of the plant Curcuma amada containing at least one such diterpene can be used as medicaments for immunomodulation and for the alleviation of pain. Specifically, they are used for pre...
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WO/1999/034793A1 |
The present invention provides convergent processes for preparing myxopyronins and corallopyronins, compounds useful as antibacterial therapeutics. The present invention also provides novel compositions of matter which are useful for the...
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WO/1999/033778A1 |
A method wherein a gas stream containing hydrogen, a carbon oxide and hydrogen sulfide is first passed in contact with a catalyst comprising a porous alumina supported sulfided metal selected from the group consisting of molybdenum (Mo),...
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WO/1999/029646A1 |
This invention provides a method for preparing 3,3-dimethylbutyraldehyde from 3,3-dimethylbutanol using an oxidizing component. In one embodiment, 3,3-dimethylbutanol is oxidized to 3,3-dimethylbutyraldehyde in the vapor phase by contact...
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WO/1999/026584A2 |
Oleamide is an endogenous fatty acid primary amide that possesses sleep-inducing properties in animals and has been shown to effect seratonergic systems and block gap junction communication in a structurally specific manner. Certain agen...
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WO/1999/024443A2 |
This invention is to develop novel transition metal catalysts for the pratical synthesis of important chiral molecules. The invention emphasizes asymmetric catalysis based on chiral bidentate phosphine ligands with cyclic ring structures...
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WO1999001124A9 |
The present invention provides convergent processes for preparing epothilone A and B, desoxyepothilones A and B, and analogues thereof. Also provided are analogues related to epothilone A and B and intermediates useful for preparing same...
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WO/1999/023054A1 |
The invention relates to a method for purifying formaldehyde, whereby the formaldehyde is rinsed with alcohol in an absorption unit and almost entirely converted to hemiformal while gaseous impurities are separated in a first purificatio...
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WO/1999/023088A1 |
Processes for the manufacture of vinyl ether derivatives, e.g., methoxydihydropyran, are disclosed which comprise reacting acetylene and a lower alcohol, e.g., methanol, to form a vinyl alkyl ether, e.g., vinyl methyl ether, reacting the...
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WO/1999/021932A1 |
New starting materials and methods are used to make materials with low dielectric constant through the processes of transport polymerization or chemical vapor deposition. The starting materials and precursors are designed to provide poly...
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WO/1999/021818A1 |
A process and device are disclosed for subsequently purifying gases, in particular pyrolysis gases, and for preparing pure formaldehyde. Hemiformal is pyrolysed in an evaporator, the resulting formaldehyde vapour is led through a liquid ...
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WO/1999/021935A1 |
Light emitting compounds are disclosed for use in light emitting devices. These compounds have the formula A compound having the formula: CORE [DENTRITE]¿n? in which CORE represents an atom or group, n represents an integer of at least ...
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WO/1999/021817A1 |
Lewis acid-catalysed reaction of alkenes (including cycloalkenes) with an epoxide is a novel reaction useful for synthesis of various fragrance materials (known and novel) and their intermediates.
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WO/1999/020590A1 |
The invention relates to a method of heterogeneous catalyzed vapor-phase oxidation in which a reaction gas initial mixture comprised of propane, molecular oxygen and optionally of inert gas is conducted over a fixed-bed catalyst at a tem...
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WO/1999/020591A1 |
The invention relates to a method for producing carbonyl compounds from olefins and an oxidant, especially for producing acetaldehyde from ethene and oxygen. The olefin is oxidised in a reactor, and especially after the water and aldehyd...
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WO/1999/019275A1 |
A process for electrophilic substitution of an aromatic compound, comprising contacting said aromatic compound, a precursor of the desired substituent and an aqueous reagent containing zinc halide, at an elevated temperature.
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WO/1999/018793A1 |
This invention relates to a method of preparing a compound type where at least one of R' or R'' is a carboxyl group (I) by treating a compound of formula (II) with a Group I(a) or Group II(a) metal halide, with an aprotic dipolar amide-b...
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WO/1999/018941A2 |
The present invention relates to the use of an I¿h? channel modulator in the manufacture of a medicament for use in psychiatry. To certain novel methanamine derivatives, to processes for their preparation, to pharmaceutical formulations...
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