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Matches 851 - 900 out of 1,702

Document Document Title
JP2000015094A
To reduce by-products in a reaction product and to eliminate an operation for separating a catalyst from the product after a reaction by forming the catalyst for the addition of alkylene oxides by mixing/molding magnesium oxide with a sp...  
JP2000007647A
To provide a new sulfonamide derivative giving a quick and selective acylation agent enabling easy treatment of by-products. The objective compound is expressed by formula I [X is H, trifuloromethyl, nitro or the like; V is nitro, cyano,...  
JP2000500151A
Selective oxidation process for organic substrates by contacting said substrates with an oxidant selected amongst hydroperoxides and/or hydrogen peroxide in the presence of a catalyst containing a metal complex of a least one multicoordi...  
JP2000001444A
To provide both a system for controlling the pressure in a reactor capable of suppressing the rise in reactional pressure and shortening the reactional time by simple equipment and a method for producing an alkylene oxide adduct using th...  
JPH11349493A
To oxidize an organic substrate so as to control the deactivation of an imide compound as a catalyst and to obtain a lower order oxidation product such as an alcohol, etc., in high selectivity and yield by bringing the organic substrate ...  
JPH11349531A
To effectively suppress the production of peroxides and simply, economically and advantageously produce an ester by reacting an acid with an alcohol in at least an atmosphere under a reduced pressure or a vacuum or an inert gas atmospher...  
JPH11514356A
A chiral ligand having the following structure: wherein AR is any aromatic and/or ring structure, and R is selected from the group consisting of aryl, oxygenated aryl, alkyl, oxygenated alkyl, AR, oxygenated AR and combinations thereof.  
JPH11319569A
To improve the activity of a catalyst by preparing the catalyst to be used in the production of an acyl group substituted aromatic compound by reacting an aromatic compound with a carboxylic acid or its derivative by incorporating zeolit...  
JPH11319568A
To improve activity of a catalyst and further to remarkably decrease deterioration of the activity of the catalyst with time. An arom. compd. and a carboxylic acid or its deriv. are reacted together in the presence of a catalyst wherein ...  
JP2979399B2
To provide a process for the production of an alkylene oxide adduct in high production efficiency dispensing with a highly pressure-resistant facility and provide a process for the production of an alkylene oxide adduct enabling easy con...  
JP2972849B2
The object of the invention is to provide a novel process for epoxidation of perfluoro-olefins. This invention relates to a process for epoxidizing a perfluoro-olefin, characterized by employing a tertiary amine N-oxide represented by th...  
JP2966094B2
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.  
JPH11285642A
To obtain an organotin compd. type transesterification catalyst which allows transesterification to proceed under mild reaction conditions, gives the objective product in a high yield and high purity and does not affect optical purity by...  
JP2962668B2  
JPH11263745A
To stably obtain the objective product while suppressing reduction in catalytic performances, by providing a process for bringing a catalyst into contact with a specific gas in subjecting a prescribed hydrocarbon to a gas-phase catalytic...  
JPH11228484A
To obtain the corresponding quinones in a good yield by oxidizing an aromatic hydrocarbon with molecular oxygen under mild conditions. This method for producing quinones comprises oxidizing an aromatic hydrocarbon in the presence of a co...  
JPH11228453A
To produce the subject compound in a high yield without using an organic solvent by reacting an aldehyde compound with a tetraallyl tin in the presence of a surfactant and a rare earth element Lewis acid catalyst in an aqueous solvent. T...  
JP2938225B2  
JP2935453B2
PURPOSE: To efficiently produce an alcohol in a high yield by hydrogenating a carbonyl compound in the presence of a homogenized hydrogenation catalyst, a base and a nitrogen-containing organic compound. CONSTITUTION: A carbonyl compound...  
JPH11209342A
To improve the selectivity to an organic hydroperoxide to a ratio attainable by a gold-plated reactor by carrying out the reaction in the inner wall of a reactor under a specific condition. In the production of an organic hydroperoxide b...  
JPH11207186A
To obtain extremely excellent catalytic activity in the oxidation of olefins with hydrogen peroxide as an oxidizing agent which can be easily handled and to efficiently and easily produce oxides of olefins (epoxides, noles, nones, aldehy...  
JPH11508487A
The invention relates to a supported catalyst, in which a metal of Group VIII of the periodic system is immobilized on a carbon support, wherein the catalyst comprises halogen atoms, the Group VIII metal and an activated carbon support w...  
JPH11193248A
To enable the easy separation of a catalyst and the efficient activation of an active hydrogen-containing compound by using a polymer gel as an activation catalyst for an active hydrogen. The active hydrogen of an active hydrogen-contain...  
JPH11171830A
To provide a method for easily separating a catalyst from a reaction mixture and enabling production of the objective compound in high yield in an industrially advantageous way, by adding a carboxylic acid to a cycloolefln in a two-liqui...  
JPH11158107A
To efficiently oxidize an alcohol with hydrogen peroxide in high selectivity based on hydrogen peroxide without using a halogenated hydrocarbon solvent by reacting an alcohol with hydrogen peroxide in the presence of tungstic acids and a...  
JP2904543B2  
JPH11505536A
PCT No. PCT/EP96/01876 Sec. 371 Date Oct. 1, 1997 Sec. 102(e) Date Oct. 1, 1997 PCT Filed May 6, 1996 PCT Pub. No. WO96/36588 PCT Pub. Date Nov. 21, 1996The invention relates to processes for preparing substituted aromatic amino compound...  
JPH11130725A
To provide an industrially applicable method for producing a compound with a diacyloxylated side chain of an alkyl-substituted aromatic compound in good productivity. An alkyl-substituted aromatic compound is allowed to react with a carb...  
JPH11123332A
To provide a photochemical reaction catalyst using a tetravalent metal phosphate carrying silver, and a producing method of a compound containing hydroxyl groups. A hydroxylation catalyst is represented by the formula: Aga Ab M2(PO4)3.nH...  
JP2889975B2
A decarboxylation process which comprises contacting a carboxylated compound with a metal oxide catalyst under conditions effective to decarboxylate the carboxylated compound.  
JPH11116536A
To obtain a thermosiphon type reactor for continuous esterification which is capable of preventing short passage of unreacted matter which is contained in an esterified product to send the next step. The reactor, which allows circulation...  
JPH11106377A
To efficiently produce the corresponding oxide from a heterocyclic compound by using an oxidation catalyst composed of a specific compound and a promoter. A heterocyclic compound (e.g. 2,5-dimethylthiophene) is brought into contact with ...  
JPH11104496A
To produce an inexpensive catalyst carrier for controlling the performance change with time of a catalyst. Silicon carbide, an inorganic bonding material and at least one kind of oxide A selected from the group consisting of niobium oxid...  
JP2874255B2  
JPH1180036A
To efficiently obtain various optically active compounds useful as raw materials for a functional molecule such as liquid crystal, etc., a physiologically active substance such as medicine, agrochemical, etc., by a simple reaction, by us...  
JPH11502841A
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 soluti...  
JP2865715B2
The invention relates to a generally applicable process for the hydroxylation of electrophilic aromatic compounds, according to which the electrophilic aromatic compounds are reacted with organic hydroperoxides in the presence of bases.  
JP2862354B2  
JP2859955B2
The hydroformylation of olefins with rhodium complex catalysts is described. The catalysts employed comprise a rhodium complex with at least one bidentate ligand having a specified structure, Hydroformylation reactions at relatively low ...  
JPH1149726A
To provide a method for continuously producing an esterified product, capable of improving removal of a condensation product such as water to the outside of system and continuously producing esterified product in a short time by reduced ...  
JPH1135513A
To obtain the subject compounds in high yields by hydrogenating specific phenols in the presence of a palladium-carbon catalyst, a mixture of a basic component and water at a specific temperature under a specific hydrogen pressure. The c...  
JPH1121258A
To obtain the subject compound useful as a raw material for perfume, agrochemical, medicine, etc., by reacting an aldehyde or a ketone with an alcohol in the presence of a specific catalyst. An aldehyde (e.g. formaldehyde) or a ketone (e...  
JPH115757A
To obtain an alcohol useful as a raw material for medicines, perfume, intermediate, solvent, etc., in a high yield and selectivity under mild conditions, by hydrogenating reduction of a carboxylic acid in an ester-based solvent in the pr...  
JPH10513453A
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...  
JP2838664B2
PURPOSE: To obtain an oxo compound by treating a secondary hydroxyl group- containing compound with chlorine gas in an aqueous solvent in an acidic condition in the absence of a catalyst at room temperature to efficiently oxidize only th...  
JPH10330292A
To provide a liquid-phase oxidation method for an organic liquid by a reactor. A reactor for holding an organic liquid to be oxidized is prepared. A first oxygen-containing gas is introduced into the lower part of the reactor, the bubble...  
JPH10330291A
To directly produce-a hetero element-containing oxide compound such as a hetero element-containing epoxide compound, an N-oxide compound, etc., from a corresponding hetero element-containing compound such as a hetero element-containing c...  
JP2832721B2
PCT No. PCT/GB87/00070 Sec. 371 Date Oct. 5, 1988 Sec. 102(e) Date Oct. 5, 1988 PCT Filed Feb. 5, 1988 PCT Pub. No. WO88/05767 PCT Pub. Date Aug. 11, 1988.Hydrogen is supplied first to a last hydrogenation zone, and gases recovered from ...  
JPH10324665A
To provide a method for stably producing high-purity ester compounds even in the presence of a quinone as an impurity by the esterification of a polyphenol compound in the presence of a specific compound. This ester compound is obtained ...  
JP2831011B2
The hydroformylation of olefins with rhodium complex catalysts is described. The catalysts employed comprise a rhodium complex with at least one phosphine having a specified structure, e.g., tris(benzyl)phosphine. Preferred phosphines ha...  

Matches 851 - 900 out of 1,702