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WO/2000/064843A1 |
The invention concerns a functionalised solid support for the synthesis of compounds comprising at least an $g(a)-oxoaldehyde function, its method for preparation and its uses, in particular for preparing a bank of organic compounds, a d...
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WO/2000/061524A1 |
The invention relates to a method for oxidizing organic substrates using ?1¿O¿2? in which hydrophobic organic substrates that react with ?1¿O¿2 are added to an organic solvent in the presence of a heterogeneous or homogeneous catalys...
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WO/2000/056717A1 |
Compositions including at least one organic ligand including a first hetero atom and second hetero atom directly bonded to the first hetero atom or located one carbon atom away from the first hetero atom, with at least one of the hetero ...
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WO/2000/055165A1 |
The invention relates to the industrial conversion of carbohydrates, alcohols, aldehydes or polyhydroxy compounds in aqueous phase. According to the invention a catalytic method is used for the conversion, using a metal catalyst consisti...
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WO/2000/051953A1 |
The invention relates to the catalytic gas phase oxidation of carbon hydrates with improved selectivity. The invention relates especially to the oxidation of toluenes to form benzaldehydes. The aim of the invention is to increase selecti...
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WO/2000/050364A1 |
A method and composition are disclosed for the hydroxylation of aromatic substrates in the presence of oxygen, hydrogen, and a catalyst. In a preferred embodiment, benzene is oxidized to phenol in the presence of oxygen, a vanadium catal...
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WO/2000/041989A1 |
The invention concerns a method for hydroxylating phenolic compounds and more particularly and method for hydroxylating phenols and phenol ethers with hydrogen peroxide. The invention concerns a method for hydroxylating phenolic compound...
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WO/2000/040537A1 |
Processes for producing a compound (1) represented by formula (1), which includes an acrylic acid derivative and is useful as an agricultural chemical or medicine. One of the processes comprises the step of formylating a compound (3) (st...
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WO/2000/024694A1 |
A method for converting an epoxy or hydroxy moiety to a 1-deoxy-2-keto moiety is described which includes the steps of (a) providing a compound comprising an epoxy or hydroxy moiety having general structure (1a) or -CH(X)CH(OH)- (where X...
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WO/2000/021944A2 |
A process for selectively oxidizing an organic molecule by reacting said organic molecule and oxygen in the presence of a selective oxidation catalyst supported on a mesh-like structure.
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WO/2000/018507A1 |
A method for maufacturing of an improved attrition resistant catalyst having an oxide-rich surface layer involving forming a slurry comprising; catalyst, catalyst precursor or catalyst support particles (e.g., transition metal oxides), a...
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WO/2000/007964A1 |
The invention relates to a method for oxidizing hydrocarbons on a catalyst which contains silver and titanium and in the presence of a hydrogen-oxygen mixture. Said catalyst contains a) a supporting material which contains titanium and b...
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WO/2000/007965A1 |
The invention relates to a method for reacting an organic compound with a hydroperoxide, comprising at least the following steps (i) to (iii): (i) reacting the hydroperoxide with the organic compound to obtain a mixture composed of a rea...
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WO/2000/006548A1 |
The invention relates to a method for producing 2-halopyridine-n-oxide by reacting 2-halopyridine with hydrogen peroxide in aqueous solution in the presence of an acid anhydride as the catalyst. According to the invention, an anhydride o...
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WO/2000/002876A1 |
An improved process of synthesis of 5-methoxy-2-[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]sulfin
yl-1H-benzimidazole (omeprazole) by oxidation of 5-methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridyl)methyl]thio]
benzimidazole with 3-chloroper...
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WO/1999/064129A2 |
The present invention relates to a process for preparing hydroxylated aromatics by using hydrogen and oxygen and more particularly, to a process for preparing hydroxylated aromatics by using hydrogen and oxygen with a two-component heter...
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WO/1999/064376A1 |
The selectivity of an olefin epoxidation process catalyzed by a heterogeneous catalyst for example titanium silicalite is improved by performing the epoxidation in the presence of carbon dioxide. The catalysts used do not require regener...
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WO/1999/054041A1 |
A method for regeneration of sulfonic acid polystyrene resin catalyst used in the production of ether that results in recovery of over 98 % of the catalyst's potentially remaining activity comprising removing substantially all residual e...
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WO/1999/052850A1 |
The present invention relates to an oxidation which converts a primary or secondary alcohol of Formula (II) to an acid or ketone of Formula (I) with periodic acid and a catalytic amount of a chromium reagent.
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WO/1999/050204A1 |
A process for cooxidizing organic compounds which comprises, in the presence of an imide compound such as N-hydroxyphthalimide, oxidizing with molecular oxygen a compound (A) which is selected from among (A1) compounds having nonaromatic...
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WO/1999/045173A1 |
The invention relates to a method for carboxylating terminal alkynes in which terminal alkynes are used which have at least one additional aliphatic carbon atom in $g(a)-position and which do not posses a proton which has a higher acidit...
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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/1999/041215A1 |
A method of cleaving a carbon-nucleophile bond in a chemical compound, said method comprising the steps of: a) adding a Lewis acid to said compound; b) allowing the reaction to proceed; and c) subsequently quenching said reaction. The me...
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WO/1999/038613A1 |
The invention relates to a method for obtaining advantageous catalysts, especially for hydrogenation. According to said method, a suspension of a ruthenium compound with a specific surface area of 50 to 300 m?2¿/g is brought together wi...
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WO/1999/032434A1 |
An improved process for the preparation of cis-1,3-diols is described where a beta hydroxy ketone is treated with a trialkylborane or dialkylalkoxyborane or a mixture of a trialkylborane and a dialkylalkoxyborane followed by recovery and...
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WO/1999/031030A1 |
The invention concerns a method for O-alkylation of phenol compounds comprising at least an acid, ester, aldehyde, amide or nitrile functional group, which consists in reacting said phenol compound with a halogenated aliphatic hydrocarbo...
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WO/1999/026936A2 |
A process for oxidizing organic compounds is disclosed. Hydrogen peroxide is used to oxidize an oxidizable organic substrate in the presence of a silica-modified titania/silica-containing catalyst. A method for preparing a catalyst using...
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WO/1999/025666A2 |
A process for oxidizing organic compounds is disclosed. Hydrogen peroxide is used to oxidize an oxidizable organic substrate in the presence of a silica-modified titania/silica-containing catalyst. A method for preparing a catalyst using...
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WO/1999/021810A1 |
The invention relates to a method for producing phenols, aldehydes, esters and/or ketones with the utilization of lignin and/or lignin sulphonic acid in which the starting materials containing lignin or the lignin sulphonic acid are heat...
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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/1999/019275A1 |
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/1999/018057A1 |
One aspect of the present invention relates to novel reaction conditions that allow the efficient synthesis of diaryl ethers from arenes bearing a leaving group and arenols under relatively mild conditions. Another aspect of the present ...
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WO/1999/018064A1 |
The invention concerns a method for functionalizing a phenolic compound bearing an electron-donor group, in said group para position, inter alia a method for the amidoalkylation of a phenolic compound bearing an electron-donor group, and...
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WO/1999/017878A1 |
Compounds are used as catalysts according to general formula (1) M?+x¿(C(SO¿2?CF¿3?)¿3?)¿x? whereby x is equal to 1 or 2; M represents one hydrogen or alkaline metal atom when x equals 1; and M represents one alkaline-earth metal at...
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WO/1999/012885A1 |
The invention relates to novel substituted alkenoic acids and their derivatives, to methods for producing them, and to their use as fungicides.
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WO/1999/006338A1 |
The invention concerns a method for controlled oxidation of a substituted hydrocarbon substrate, consisting in contacting said substituted hydrocarbon substrate with a source of oxygen in the presence of at least a catalyst selected amon...
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WO/1999/005126A1 |
The invention concerns ionic compounds wherein the negative charge is highly delocalized. The compounds contain at least a perfluorovinyl group and at least a group selected among -O or one of the groups -NC$m(Z)N, -(C$m(Z)N)¿2?, -NSO¿...
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WO/1999/003810A1 |
The invention relates to a method for producing oxo products by hydroformylation of substrates with C=C double bonds, using unmodified rhodium catalysts in a reaction mixture consisting essentially of the substrates, the catalyst and car...
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WO/1999/000535A1 |
The invention concerns a method for preparing 2-aryl or 2-heterocyclyl chiral propionic acids and their esters by electrochemical reduction of a mixture of a propionic acid derivative of formula (II) in which R¿3? represents a radical o...
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WO/1998/055228A1 |
The invention relates to a method for regenerating a zeolitic catalyst, comprising the following steps: (I) at least one partially deactivated catalyst is heated to a temperature ranging from 250 to 600 �C in an atmosphere containing l...
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WO/1998/055430A1 |
The invention relates to a method for oxidizing an organic compound containing at least one C-C double bond or a mixture of two or more thereof, comprising the following steps: (I) production of a hydroperoxide; (II) reaction of an organ...
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WO/1998/053910A1 |
The invention relates to a moulded, activated metallic fixed-bed catalyst having a pore volume of 0.05-1 ml/g and an outer, activated shell consisting of a sintered, small-particle catalyst alloy as well as optional catalyst promoters. T...
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WO/1998/040339A1 |
The invention concerns a method for the acylation or sulphonation of an aromatic compound. More particularly, the invention concerns a method for the acylation or sulphonation of an activated or deactivated aromatic compound and is usefu...
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WO/1998/030329A1 |
At least one functional group selected between nitro and carboxyl groups can be introduced into a substrate by bringing the substrate into contact with at least one reactant selected from among (i) nitrogen oxides and (ii) carbon monoxid...
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WO/1998/030517A1 |
The invention concerns a method for reducing a carbonyl-containing compound. More precisely it concerns a method for reducing a aldehyde and/or a ketone. The reduction method which consists in reacting a carbonyl-containing compound with...
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WO/1998/029399A1 |
The invention relates to ionic compounds in which the anionic load has been delocalized. A compound disclosed by the invention includes an anionic portion combined with at least one cationic portion M?+m� in sufficient numbers to ensur...
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WO/1998/029388A1 |
The invention relates to ionic compounds in which the anionic load has been delocalized. A compound disclosed by the invention is comprised of an amide or one of its salts, including an anionic portion combined with at least one cationic...
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WO/1998/029877A1 |
Disclosed is a proton conductor in liquid form, comprised of a mixture of the following components: (a) a salt combined with a nitrogenated base along with an acid, according to formula (I), wherein Z�1?, Z�2?, Z�3?, and Z�4?, wh...
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WO/1998/029389A1 |
The invention is related to ionic compounds, derivatives of malononitrile, in which the anionic load has been displaced. An ionic compound disclosed by the invention includes an anionic portion combined with at least one cationic portion...
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