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Matches 351 - 400 out of 583

Document Document Title
JPH0753723B2  
JPH07504913A
(57)【要約】 本公報は電子出願前の出願データであるため 要約のデータは記録されません。  
JPH07504914A
(57)【要約】 本公報は電子出願前の出願データであるため 要約のデータは記録されません。  
JPH0733378B2  
JPH07502285A
(57)【要約】 本公報は電子出願前の出願データであるため 要約のデータは記録されません。  
JPH0753538A
PURPOSE: To obtain the subject high-purity compound(s) treating the product of hydrogenation of maleic acid, succinic acid or the like with a protic acid and distilling the reaction mixture. CONSTITUTION: The product of hydrogenation of ...  
JPH0710859A
PURPOSE: To obtain selectively compounds useful for raw materials of perfumes, solvents, pharmaceutical preparations, polymers or the like in a high yield by dehydrogenating diols by passing them in liquid phase over a catalyst containin...  
JPH072822A
PURPOSE: To obtain the compound useful as a size agent of paper or the like by the dehydrohalogenation reaction of an aliphatic fatty acid halide and a tertiary amine using a specified solvent with a smaller problem on health and environ...  
JPH06345751A
PURPOSE: To readily synthesize invictolide, i.e., one component of queen- recognition pheromone through a few processes by using diethyl methylmalonate and methacrolein as the starting substances. CONSTITUTION: Diethyl methylmalonate of ...  
JPH06329654A
PURPOSE: To provide a new compound having sensitivity to the light of the visible light region, especially of longer wave lengths region than green color light and useful as a photosensitizer for a photosensitizing resin composition whic...  
JPH06256334A
PURPOSE: To easily and selectively synthesize a natural-type ciswhiskey lactone having high utility by inverting the steric configuration of the 4-butyl group of 4-trans-whiskey lactone via three steps. CONSTITUTION: The lactone part of ...  
JPH06256333A
PURPOSE: To provide a method for preparing a ketene dimer in high yield and purity with high productivity in the substantial absence of organic solvents. CONSTITUTION: The method for preparing a ketene dimer comprises reacting an fatty a...  
JPH06247954A
PURPOSE: To produce a lactone in high selectivity and yield by carrying out the hydrogenating reaction of a dicarboxylic acid diester with hydrogen in the vapor phase under mild reactional conditions using a new solid catalyst without co...  
JPH06192167A
PURPOSE: To prepare the compounds which are three functional compounds by catalytically hydrogenating citric acid or its alkyl ester or its aralkyl ester. CONSTITUTION: The objective compounds are prepared by catalytically hydrogenating ...  
JPH06157503A
PURPOSE: To obtain a lactone compound useful as perfumes, medicines and agricultural chemicals or their synthetic intermediates by reacting a cycloalkanone with a peracetic acid in the presence of an acid anhydride in oxidizing the cyclo...  
JPH06128245A
PURPOSE: To easily obtain the subject compound in high optical purity at a low cost by the asymmetric hydrogenation of 4-methylene-2-oxetanone in the presence of a ruthenium-optically active phosphine complex as a catalyst. CONSTITUTION:...  
JPH0631215B2  
JPH06503328A
(57)【要約】 本公報は電子出願前の出願データであるため 要約のデータは記録されません。  
JPH0673042A
PURPOSE: To provide a process for producing γ-butyrolactone in high efficiency at a low cost while enabling the recycled use of unreacted substance. CONSTITUTION: γ-Butyrolactone is produced by the vapor-phase catalytic dehydrogenation...  
JPH0665223A
PURPOSE: To provide a catalyst system improved in selectivity and reaction speed at the time of carbonylation of epoxides by reaction with carbon monoxide. CONSTITUTION: Carbon monoxide and an epoxide are allowed to react with each other...  
JPH069514B2  
JPH05508414A
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.  
JPH0575749B2  
JPH05262697A
PURPOSE: To efficiently obtain a diastereoisomerically pure compd. as the raw material for medicines or the like by reacting the specified ketoprophene of a raceme with acid chloride in the presence of tertiary amine, reacting the produc...  
JPH0566390B2  
JPH05506212A
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.  
JPH05505975A
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.  
JPH0535149B2  
JPH0565245A
PURPOSE: To inexpensively obtain the title compounds in reduced production of aryl formate, high selectivity and high yield by carrying out a co-oxidation reaction of cyclic ketones and aromatic aldehyde in specific ranges of molar ratio...  
JPH0519558B2  
JPH0538427A
PURPOSE: To obtain a storage-stable aq. alkyl diketene emulsion at a high conc. by using a protective colloid and a specified ester or urethane as stabilizers for preparation of a 14-22C alkyldiketene emulsion. CONSTITUTION: As essential...  
JPH04338384A
PURPOSE: To obtain 15-pentadecanolide or a mixture of 15-pentadecanolide with 15-pentadec-11(12)-enolide imparting aromatic characteristics to a perfume compsn., etc., by heat-treating bis-(13-oxabicyclo[10,4,0]hexadec-12-yl) peroxide in...  
JPH04505321A  
JPH0456014B2  
JPH04235127A
PURPOSE: To obtain a therapeutic agent, containing a cyclopropachromene derivative as an active ingredient and capable of promoting compensative functional recovery for nerve routes receiving degeneration. CONSTITUTION: A therapeutic age...  
JPH0447647B2  
JPH0446955B2  
JPH04164079A
PURPOSE: To obtain the subject compound as a sex pheromone for exterminating Popillia japonica Newman by reacting D-ribose with acetone, reacting the resultant product with a Wittig reagent, converting only primary OH group of the produc...  
JPH04154775A
PURPOSE: To obtain trans-3,4-disubstituted γ-lactone compounds having a high optical purity in simple steps by using levoglucosenone as a starting substance and forming a lactone ring using the Baeyer-Villiger oxidative reaction. CONSTI...  
JPH04108782A
PURPOSE: To obtain the title high-purity compound useful as various pheromone of insect or perfume simply by asymmetrically hydrogenating a γ-keto-acid or an ester thereof in the presence of a specific catalyst. CONSTITUTION: A compound...  
JPH04500813A  
JPH044314B2  
JPH049378A
PURPOSE: To obtain the subject compound useful for production of polymer in high yield and high purity with suppressing by-product by reacting a percarboxylic acid solution derived from organic carboxylic acids and cyclohexanone in using...  
JPH03232875A
PURPOSE: To stably obtain the title compound useful as a solvent, etc., in high space time yield and in high selectivity, by catalytically dehydrogenating 1,4- butanediol in the presence of a catalyst containing copper, chromium, etc., i...  
JPH0363537B2  
JPH03215464A
NEW MATERIAL: A compound of formula I [R is each substitutable alkyl, cycloalkyl, aryl, heterocyclyl; X is N, CH]. EXAMPLE: (As a mixture of the isomers), 3-(3,4dichlorobenzyloximino)2- methoxymethylidene methylbutylate. USE: A pesticide...  
JPH0357905B2  
JPH03184943A
PURPOSE: To provide a cerebrovascular agent for treatment of neurodegenerative disorders including cerebrovascular diseases, comprising a polycyclic amine such as aminomethylhexahydrophenanthrene. CONSTITUTION: A compound of the formula ...  
JPH03170468A
PURPOSE: To economically obtain the subject compound by treating a reactive mixture obtained by catalytic hydrogenation of the diester of maleic acid, fumaric acid, or succinic acid by use of four vacuum distillation columns. CONSTITUTIO...  
JPH03130276A
PURPOSE: To obtain an α-alkyl lactone effective as an aromatic chemical substance, by reacting acyl lactone, aldehyde and alkali metal hydroxide, and then hydrating the same. CONSTITUTION: The equimolar ratio of an α-acyl lactone of fo...  

Matches 351 - 400 out of 583