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Matches 1,151 - 1,200 out of 1,703

Document Document Title
JPH066539B2  
JPH066544B2
4-oxa-aldehydes are prepared by catalytic isomerization of a 1,3-dioxane using an acidic zeolite catalyst.  
JPH0616602A
PURPOSE: To produce a quaternary ammonium carbonate ester which is useful as a bleaching precursor in detergent compositions without accompanying generation of hydrogen chloride byproducts. CONSTITUTION: A hydroxyl compound of formula I ...  
JPH0616574A
PURPOSE: To efficiently obtain the subject compd. in high yield which is useful as an antioxidant, lubricant, hydraulic fluid or the like by reacting each a specified, carboxylic acid ester and an alcohol in the presence of a specified c...  
JPH064543B2
A 1,3-diketone (1 mol) of formula: wherein R<1> and R<2> each is C1-8 alkyl, haloalkyl, hydroxyalkyl, trifluoromethyl, optionally substituted phenyl-substituted C1-7 alkyl, alkoxycarbonyl-substituted C1-7 alkyl, C1-7 aminoalkyl, a C1-7 a...  
JPH064544B2
A carbonyl compound represented by the formula: wherein A represents C1-7 alkyl or haloalkyl, optionally substituted phenyl, or optionally substituted benzyl; and B represents C1-4 acyl, C1-7 alkoxycarbonyl, haloalkyl, hydroxycarbonyl, C...  
JPH064556B2
1. A process for the preparation of cyclohexanedione derivatives of the general formula see diagramm : EP0124041,P7,F1 where R**1 means one of the following substituents : C2 -C8 -alkyl, C2 -C8 -alkenyl, C3 -C12 -cycloalkyl, C5 -C12 -cyc...  
JPH06742B2  
JPH0588208B2  
JPH0584292B2  
JPH0583525B2  
JPH0582372B2
There is provided a novel process for the preparation of carboxylic acids from alkyl groups under basic conditions utilizing oxides of copper, cobalt and silver.  
JPH0582371B2  
JPH05294864A
PURPOSE: To obtain a new fullerene derivative useful as a cross-linking agent and/or a nucleous constituent of star polymers. CONSTITUTION: This compd. is a polysubstd. fullerene component having more than one substd. groups selected fro...  
JPH0580457B2  
JPH0580264B2
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.  
JPH0579052B2  
JPH0576952B2  
JPH0576452B2
1. A process for the preparation of an unsaturated ketone (vinyl ketone) of the general formula (I) R-CH=CH-CO-CH3 where R is any unsubstituted or substituted aromatic or heterocyclic radical, wherein an appropriate phosphorylid (II) see...  
JPH05271104A
PURPOSE: To provide a system having gentle reaction conditions allowing the use of particularly optically active and vital molecules for saponification of an acid deriv., ammonolysis or ester conversion and sepn. of polymer bond molecule...  
JPH0572894B2  
JPH05255165A
PURPOSE: To produce an α,α-difluoroether useful for synthesizing medicines, agricultural chemicals, functional materials, etc., in good yield under mild conditions in a short process. CONSTITUTION: A thionecarboxylic acid ester express...  
JPH05246897A
PURPOSE: To produce a biphenyl-based and/or a benzophenone-based compound by using an aromatic carboxylic acid halide as a raw material. CONSTITUTION: An aromatic carboxylic acid halide expressed by the formula Ar(COX)n [Ar is aromatic g...  
JPH0566934B2
Ketones are prepared by isomerization of aldehydes at elevated temperatures over zeolites.  
JPH05221879A
PURPOSE: To prepare an org. monomeric or polymeric compd. having tert- butyloycarbonyl groups. CONSTITUTION: An org. compd. having at least one heteroatom with an acidic proton is allowed to react with di-tert-butyl dicarbonate at 0-80°...  
JPH0557248B2
Process for inverting the configuration of secondary alcohols in which the hydroxyl group is attached to an asymmetric carbon atom, in accordance with which the secondary alcohols are esterified, with inversion of their configuration, by...  
JPH0557246B2  
JPH0553794B2
Camphor derivatives characterised by having general formula I or its enantiomeric structure wherein R represents a hydrogen or halogen atom, a pseudohalogen group, a hydroxy group or an optionally substituted alkyl, alkoxy, aryloxy, amin...  
JPH05194334A
PURPOSE: To obtain a carboxylate useful as a surfactant by allowing a specified primary hydroxyl group-contg. compd. to react with an inorg. or org. halo-contg. oxidizing agent in the presence of a base and hindered nitroxide. CONSTITUTI...  
JPH0550556B2  
JPH05186398A
PURPOSE: To obtain the subject new compound, capable of efficiently introducing new carboxyl group into a compound to be acylated under mild conditions and useful as an acylating agent for various alcoholic hydroxyl groups or thiol group...  
JPH0548210B2  
JPH0547526B2  
JPH0546252B2
An alcohol compound is produced by reducing a carboxylic acid or an ester thereof with an alcohol in the presence of a solid catalyst. The catalyst includes a hydrous metal oxide belonging to Group IV of the Periodic Table.  
JPH05170670A
PURPOSE: To provide a new oxidation method of a carbohydrate by using an inexpensive and advantageous reagent. CONSTITUTION: The preparation method of an oxyacid from a carohydrate by using an oxygen-contg. gas in an alkaline medium by m...  
JPH0544951B2  
JPH0533935B2  
JPH0533934B2  
JPH0533933B2  
JPH0531534B2
Alpha-aryl-alkanoic acids are prepared by heating at boiling temperature a mixture of an alpha-halogen-alkyl-arylketone in a saturated aliphatic diol or in a mixture of saturated aliphatic diols in the presence of a Broensted's acid and ...  
JPH0528214B2  
JPH0528228B2  
JPH0597730A
PURPOSE: To minimize the pulverization and disintegration of catalyst for the synthesis of methacrolein and methacrylic acid in the charging of the catalyst into a reactor by using a reactor containing string-shaped materials having a sh...  
JPH0524924B2  
JPH05501563A
PCT No. PCT/GB90/01763 Sec. 371 Date May 14, 1992 Sec. 102(e) Date May 14, 1992 PCT Filed Nov. 15, 1990 PCT Pub. No. WO91/07385 PCT Pub. Date May 30, 1991.Compounds of formula I (I) in which Ar is aryl and R1 and R2 are alkyl, are obtain...  
JPH0519532B2
A process for the preparation of a vicinal hydrosoluble diol by means of a direct catalytic hydroxylation of the corresponding olefine with H202. The process is characterized in that an olefine, optionally substituted with one or more fu...  
JPH0519533B2
Carboxylic acids having the general formula:wherein R is selected from aryl, aralkyl, aralkenyl, aralkynyl, heteroaryl, heteroarylalkyl, heteroarylalkenyl, heteroarylalkynyl, alkyl, alkenyl and alkynyl groups, optionally substituted by s...  
JPH0517232B2  
JPH0516414B2  
JPH0525155A
PURPOSE: To obtain the subject compound useful as a synthetic intermediate for pharmaceuticals and agricultural chemicals under nearly neutral and mild condition in high efficiency by reacting a carboxylic acid with a haloiminium salt as...  

Matches 1,151 - 1,200 out of 1,703