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Matches 1,001 - 1,050 out of 1,703

Document Document Title
JP2543522B2  
JPH08509701A
In the method proposed for the production of monocarboxylic acids from carbohydrates, carbohydrate derivatives or primary alcohols, the carbohydrates, carbohydrate derivatives or primary alcohols are oxidized continuously in aqueous solu...  
JPH08259491A
To obtain a carbonyl compound useful as an intermediate of organic synthesis without using an expensive oxidizing agent at a low temperature in a high conversion, high selectivity and safely by subjecting olefins to catalytic oxidation i...  
JPH08245443A
To provide a method for reutilizing a combustible diluting gas component used as a reactional diluent medium and inert to a reaction as, e.g. an energy source for a thermoelectric generator. This method for continuously operated heteroge...  
JPH08245642A
PURPOSE: To obtain an alcohol in a good efficiency, useful as a raw material for the synthesis of a medicine, an agrochemical, etc., by reducing a ketonic compound in the presence of a specific lewis acid. CONSTITUTION: This asymmetric a...  
JPH08245645A
PURPOSE: To obtain an optically active amino alcohols-boron-based compound extremely useful as an asymmetric reducing agent of ketones, etc. CONSTITUTION: This compound is expresses by formula I (R1 is H, methyl, ethyl, etc.; * is an asy...  
JP2535018B2
1. A process for the acylation of an aromatic by the Friedel-Crafts method, wherein the acylation is carried out in the presence of a metalalkyl or metalalkyl halide of a metal or semimetal of main groups two to five and/or of a metal of...  
JP2530675B2  
JPH08225475A
PURPOSE: To obtain halomethylphenylcarbinols having high optical purity by reducing a halomethylphenyl ketone by using an asymmetrically reducing agent obtained from a specific β-aminoalcohol and boranes. CONSTITUTION: This compound of ...  
JP2526963B2  
JP2524738B2  
JP2525127B2
The borane reduction of prochiral ketones to optically pure alcohols is effectively achieved by the utilization of catalytic amounts of the new and valuable oxazaborolidine catalysts of formula (I).  
JPH08208543A
PURPOSE: To rapidly obtain alcohols useful as a synthetic intermediate for medicines, etc., in high yield under mild conditions by reducing a carboxylic acid using a borane-pyridine complex as a reducing agent in the coexistence of a Lew...  
JP2521695B2  
JP2517340B2  
JP2516618B2  
JPH08176039A
PURPOSE: To obtain the subject compounds having high optical puritties from halomethylphenyl ketones and facilitate post-treatment after reaction by using an asymmetric reducing agent obtained from a specific β-aminoalcohol and boranes....  
JPH08176055A
PURPOSE: To obtain an oxo compound in high selectivity and in high yield without requiring an expensive catalyst and specific facilities by treating a secondary OH-containing compound with a hypochlorite in water under acidic conditions ...  
JP2509206B2
A solid product of the formula Ce(CH3SO3)20.2H2O, Ce(CH3SO3)2(OH)2.H2O or other hydrates is disclosed and used as a highly effective oxidant to produce carbonyl containing products from aromatic and alkyl aromatic compounds.  
JPH08157416A
PURPOSE: To obtain an ester of an alcohol having low reactivity especially owing to steric hindrance on an industrial scale at a low cost by reacting an alcohol with an acid anhydride or a mixed acid anhydride in the presence of a fluori...  
JP2507543B2
6-Aliphatic C2-20-carboxylic acid esters of ascorbic acid are prepared by esterifying the ascorbic acid with an aliphatic C2-20-carboxylic acid halide in the presence of an N,N-dialkylalkanecarboxamide, a cyclic amide of the 1-methyl-2- ...  
JP2504629B2
PURPOSE: To provide a method for acylating an alkyl arom. compd. by Friedel- Crafts reaction using a carboxylic deriv. in the presence of a Friedel-Crafts catalyst and an org. aluminum compd. CONSTITUTION: An alkyl arom. compd. (e.g. t-a...  
JPH08113575A
To obtain the subject compound having a halogen atom at a meso position useful as a catalyst in the oxidation of a hydrocarbon to the hydroxyl- containing compound or a catalyst in the decomposition of a hydroperoxide by reacting a porph...  
JPH0832640B2  
JPH0830014B2  
JPH0881396A
PURPOSE: To obtain an acetal useful as an intermediate for medicines, agrochemicals or perfumes efficiently by adding a catalytic amount of a nitrite to the system in the reaction among an olefin, an alcohol and oxygen, as a satisfactory...  
JPH0822824B2
A new process for the preparation of carboxylic acid chlorides by reaction of tetrachloroethylene carbonate with a carboxylic acid of formula R(COOH)n at a temperature of between 80 DEG and 160 DEG C. The radical R can be very varied...  
JPH0822823B2  
JPH0859553A
PURPOSE: To efficiently produce an arylacetic acid derivative useful for a synthetic intermediate, etc., for a drug, a perfume, an aromatic agent, etc., in a high yield by carbonylating a specific compound with a water-soluble metallic c...  
JPH0859630A
To provide a method for producing the subject compound in high yield and high purity without isolating urea formed as an intermediate by reacting an anthranilic acid with an isocyanate. An anthranilic acid represented by formula I (R2 to...  
JPH0859516A
PURPOSE: To reduce a peroxidic ozonolysis product hydrogenolytically to the corresponding carbonyl compound in a high yield and purity in an inert solvent under a specific hydrogen pressure at a specific temperature in the presence of a ...  
JPH0819008B2
This invention relates to the use of triorganophosphine compounds as catalyst for the reaction of phenols or thiophenols with cyclic organic carbonates.  
JPH0819006B2
The invention relates to a method for the catalytic hydrogenation of organic compounds in the gas phase. The circulated gas leaving the hydrogenation reactor and containing the reaction product is compressed in a compressor without prior...  
JPH0819147B2
Optically active iridium complexes of the formula in which R is methyl and R1 is a hydrocarbon radical having at least one chiral C atom or a hydrocarbon radical containing at least one hetero atom and having at least one chiral C atom; ...  
JPH0853372A
PURPOSE: To provide a new process for the production of hydroxyl group- containing compound not containing or containing a very little amount of a low-molecular primary amine suffering no steric hindrance from a polyurethane polyurea and...  
JPH0853384A
PURPOSE: To provide a method for producing a p-alkoxybenzaldehyde in a high yield without using a large excess of an alkylating agent by alkylating p-hydroxybenzaldehyde with a halogenated alkyl in the presence of a basic material under ...  
JPH0816071B2  
JPH08501541A
(57) [Summary] A method for sensitized light-oxygen addition of unsaturated compounds. A method for sensitized photo-oxygen addition of unsaturated compounds using Frelen as a sensitizer.  
JPH0848645A
PURPOSE: To produce the subject compound facilitating waste water treatments, etc., from an alcohol compound in a good yield at a low cost by reacting a sulfoxide compound with phosgene, reacting the reaction product with an alcohol comp...  
JPH0813759B2  
JPH0811738B2
A continuous multi-stage hydrogenation process is described.This is effected in at least three catalytic stages connected in series. All stages up to and including the penultimate stage are operated adiabatically and in the vapour phase....  
JPH085809B2  
JPH085810B2  
JPH08997A
PURPOSE: To obtain an easily available low-cost catalyst system easy to handle, capable of attaining the a desired selectivity in the oxidation of an aromatic compound, capable of storage and having high activity by using a compound havi...  
JPH07330671A
PURPOSE: To easily obtain an ester compound useful as various production raw materials, etc., under mild condition in a high purity by the transesterification reaction of an organic ester compound with an alcohol in the presence of a lan...  
JPH07116062B2
Enantiomers of optically active dicarboxylic acid monoesters are obtained by subjecting them to intramolecular rearrangement involving reversal of the direction of rotation.  
JPH07112986B2
The invention relates to a new process for the preparation of carboxylic acid chlorides by phosgenation of the corresponding carboxylic acid in the presence of a catalyst. This process is characterized in that the said catalyst is chosen...  
JPH07309793A
PURPOSE: To oxidize a hydrocarbon with molecular oxygen in high activity and efficiency without using a reducing agent by using a catalyst containing a heteropolyanion. CONSTITUTION: A hydrocarbon such as butane or cyclohexane is oxidize...  
JPH07108910B2
Transition metal-bis-phosphite catalyzed carbonylation processes, especially hydroformylation, as well as transition metal-bis-phosphite compositions, bis-phosphite ligands and transition metal-bis-phosphite catalysts.  
JPH07106990B2  

Matches 1,001 - 1,050 out of 1,703