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Matches 901 - 950 out of 1,703

Document Document Title
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...  
JPH10316601A
To carry out oxidation reaction effectively at high conversion rate on an industrial scale while suppressing the adhesion of a sublimable polycyclic hydrocarbon on a reactor and on the internal walls of tubes by using a specific mixed so...  
JP2812467B2  
JPH10279506A
To obtain the subject compound without causing drain containing an ammonium salt, other salts and formaldehyde, by reacting a specific C-H-acid compound with formaldehyde. A C-H-acid compound of formula I (X1 and X2 are each an electron ...  
JPH10273455A
To produce alcohols useful as a synthetic intermediate, etc., for medicines and agrochemicals by hydrogenating a carbonyl compound with hydrogen in the presence of a homogeneous hydrogenating catalyst, a base and a nitrogen-containing or...  
JPH10265436A
To o produce a compound, having the p-position of the biphenyl ring selectively acylated in a Friedel-Crafts acylating reaction and useful as an intermediate raw material for liquid crystals, etc., by protecting OH group of a biphenyl co...  
JPH10265410A
To obtain the subject compound in high conversion and selectivity from an acetylene derivative by reacting a specific alkinyl compound in the presence of a rhodium catalyst under an aqueous gas shift reaction condition. A compound of for...  
JP2804817B2  
JPH10251178A
To enable the direct oxidation of a base in a high selectivity, a high conversion rate and a high productivity by carrying out the oxidation of the base with hydrogen peroxide in the presence of a specific catalyst system containing iron...  
JP2797464B2  
JPH10245373A
To provide a method for oxidizing a corresponding benzo condensed heterocyclic compound containing at least one N atom in the presence of hydrogen peroxide, a Broensted acid and an iron compound in a method for preparing a heterocyclic o...  
JP2792046B2
Optically active hydroxybenzylamine derivatives of the Formula: wherein R<1> denotes a hydrogen atom, lower alkyl group or lower alkoxy group; R<2> denotes a lower alkyl group; * signifies an asymmetric carbon atom; and the hydroxyl grou...  
JPH10508594A
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...  
JP2789735B2
PCT No. PCT/JP90/01488 Sec. 371 Date Jul. 15, 1991 Sec. 102(e) Date Jul. 15, 1991 PCT Filed Nov. 15, 1990 PCT Pub. No. WO91/07371 PCT Pub. Date May 30, 1991.The present invention relates to a method for the preparation of alpha , beta -u...  
JP2786300B2
Optically active S,S- or R,R-ss-amino alcohols are obtained according to the invention in high enantiomeric purity by stereoselective reduction of optically active S- or R-N-dibenzylated alpha -aminoketones with complex metal hydrides.  
JP2784824B2  
JPH10194999A
To provide a process that enables the use of inexpensive titanium material or a titanium-palladium alloy as a material for the distillation column in order to subject the product liquid prepared by carbonylation reaction of a starting su...  
JP2777127B2
A process for the opening of the epoxide function of a (meth)acrylic epoxide of formula (V): in which: (i) the (meth)acrylic epoxide is reacted with a cpd. of etherate complexes and boron trifluoride, acid salts (in the presence of the c...  
JP2775319B2  
JPH10507156A
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...  
JP2768946B2
A heat resistant noble metal catalyst having both superior heat resistant property and a remarkable high activity at any temperature ranges consisting of a composition having a formula A1-zCzBxDuA l 12-y-uO19- alpha , wherein A is at lea...  
JPH10158199A
To convert a carboxylic acid compound into an ester derivative without using an iodine compound while suppressing the formation of quaternarized by-product by treating a cfarboxylic acid compound with a specific compound in the presence ...  
JP2763676B2
Process for the preparation of acetoacetates and other beta -ketoesters is provided, involving reaction of nitrogen, oxygen or sulfur nucleophiles with a tertiaryalkyl acetoacetate or tertiaryalkyl beta -ketoester.  
JP2760954B2
PURPOSE: To provide a process for producing a hydroxyl-containing vinyl compound in high yield and selectivity on an industrialscale at a low cost at a high reaction rate to complete the reaction in a short time compared with conventiona...  
JPH10139421A
To provide the subject method which enables, in particular, the sol production process to be simplified by crystallizing at high temperature the effluent from the reaction of a mixture of tetraalkylorthosilicate and tetraalkylorthotitana...  
JPH10130195A
To obtain a carboxylic acid or its salt useful as a surfactant, etc., by oxidizing a primary hydroxyl group-having compound with a specific oxidizing agent in the presence of a specified amine in a high yield and in a good selectivity. T...  
JPH10128922A
To form panels with an excellent break resisting property relative to breakdown and/or an improved mechanical property. The plate is that when measured by an ISO 527 standard for a plate or film installed in a panel, it has a smooth or m...  
JPH10504307A
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 thu...  
JP2741069B2
This invention relates to a method for manufacturing aromatic compounds having the following formula (II) comprising the step of reacting an unsaturated aromatic compound having the following formula (I) with an aryl compound containing ...  
JP2739265B2
PURPOSE: To readily and safely produce the subject amino alcohols in high yields with economical advantage. CONSTITUTION: A method for producing an amino alcohol by reducing an amino acid derivative using (a) a metal borohydride in combi...  
JPH10503776A
PCT No. PCT/EP95/03022 Sec. 371 Date Feb. 3, 1997 Sec. 102(e) Date Feb. 3, 1997 PCT Filed Jul. 29, 1995 PCT Pub. No. WO96/05184 PCT Pub. Date Feb. 22, 1996Saccharincarboxylic acids and -carboxylic acid esters of the formula I I where the...  
JP2734646B2  
JP2734647B2  
JPH1080640A
To safely, easily and repeatedly use an amine oxidant used as an oxidation catalyst in the oxidation reaction of primary hydroxyl groups in an org. compd. by allowing the amine oxidant as a catalyst, used for oxidation reaction of an org...  
JP2733328B2  
JP2731377B2  
JP2718346B2
PURPOSE: To provide continuous production method of slightly soluble reactional products such as terephthalic acid or naphthalenedicarboxylic acid adhering to a container wall, etc., by readily and accurately detecting liquid height in a...  
JPH1045671A
To provide a continuous ester-formation process for a thermally unstable acid by esterifying the acid with an alcohol, if necessary, in the presence of a catalyst. The esterification reaction is carried out in substantially only one reac...  
JPH1045657A
To provide a method for producing an acetal compound, enabling to easily obtain the compound in a mild condition by subjecting a carbonyl compound, etc., and a hydroxy group-containing compound, etc., to an acetal- forming reaction in th...  
JP2712019B2
Process for the preparation of alpha,beta-olefinically unsaturated compounds by means of carbonylation of acetylenically unsaturated compounds with carbon monoxide in the presence of a hydroxyl-containing compound in the liquid phase, ca...  
JPH1025267A
To obtain the subject high-purity compound by reacting an alkali metal salt or an organic amine salt of a carboxylic acid derivative with a polyvalent metal compound under specific conditions. A polyvalent metal compound is fed to a mixi...  
JPH101455A
To provide a method for continuously producing a (meth)acrylic acid alkyl ester, slightly causing ether of a by-product and high boiling point material in high space time yield and provide an apparatus therefor. (Meth)acrylic acid is rea...  
JP2693287B2
PURPOSE: To epoxidize unsatd. (meth)acrylate by allowing the compd. to react with hydrogen peroxide in the presence of a catalyst or to react with an oxidizer in the presence of heteropolyacid as the case may be. CONSTITUTION: An unsatd....  
JPH09328448A
To obtain a carboxylic acid useful as a basic raw material for organic compounds, by hydrolyzing a carboxylic acid amide in the presence of a carboxylic acid having specific acid strength. A carboxylic acid amide is hydrolyzed in the pre...  
JPH09323953A
To provide a process enabling the conversion of a monocarboxylic acid and/or monocarboxylic acid anhydride to the corresponding acid chloride even in the absence of catalyst. A monocarboxylic acid and/or monocarboxylic acid anhydride are...  
JP2689412B2
PURPOSE: To provide a method for removing a protecting group in which a tri-substituted silyl group can efficiently be removed under mild conditions and the objective compound can be obtained in high yield at a low cost. CONSTITUTION: Th...  
JPH09512246A
Vanadium-containing Beta zeolite, and its use as catalyst in organic reactions.  
JP2682129B2  
JPH09295948A
To obtain a fluorine-containing compound useful as a synthetic intermediate for a medicine, a chemical or a functional material, by carrying out the functional replacement reaction of an α-perfluoroalkylated alcohol derivative, which ha...  
JP2667141B2
Ketones or aldehydes containing one or more carbon-carbon double bonds and a carbonyl group conjugated with at least one double bond are hydrolyzed by the action of heat and pressure in the presence of water by a batch or continuous proc...  

Matches 901 - 950 out of 1,703