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Matches 951 - 1,000 out of 1,702

Document Document Title
JP2662649B2  
JP2664393B2
tert.-Alkyl esters of the formula I where m represents 1 or 2, R represents C4-C12-tert.-alkyl, X represents unsubstituted or halogen-substituted alkyl, cycloalkyl, unsubstituted or substituted aryl or aralkyl or an aromatic heterocyclic...  
JP2661635B2  
JPH09255592A
To obtain an optically active alcohol which is useful as a medicine, agrochemical or the like in high asymmetric yield by asymmetric reduction of an unsymmetrical ketone with hydroborane in the presence of a chiral β- aminoalcohol and a...  
JP2656257B2  
JP2654076B2  
JP2655359B2
A method for synthesizing an aromatic amine, an aromatic alcohol or an aromatic thiol by an aromatic nucleophilic substitution reaction is disclosed, which comprises reacting a compound represented by formula (I): (I) wherein Q1 represen...  
JPH09241181A
To efficiently obtain the subject compound in good selectivity by carbonylating an organic halogen compound with CO without substantially using a metal catalyst. A reaction system comprising at least one compound comprising CO, an organi...  
JP2650886B2  
JPH09235240A
To produce both a ketone compound according to safe and simple operations by oxidizing a di-substituted acetonitrile compound in the presence of a heavy metal and a Z-isomer of an oxime derivative of benzoylpyridine from the resultant ke...  
JPH09227439A
To provide a new method for preparing an aldehyde, capable of effectively converting an aldehyde precursor to the aldehyde under a mild condition. A trifluoromethanesulfonic acid ester is treated with a silicon hydride as a proton source...  
JPH09221461A
To quantitatively produce dimethyl N-lauroyl-L-glutamate in a short time in high purity. N-lauroyl-L-glutamic acid(LGA) is made to react with methanol in the presence of an acid catalyst (e.g. p-toluenesulfonic acid) and trimethyl orthof...  
JP2640948B2
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...  
JP2630334B2
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...  
JPH09183738A
To produce a carboxylic acid oxidized to ≥2 oxidation number from a carbohydrate, its derivative or a primary alcohol. A carbohydrate, its derivative or a primary alcohol or the carbohydrate, its derivative or primary alcohol oxidized ...  
JPH09173860A
To obtain an organocarboxylic ester (methyl methacrylate) at a high yield by carbonylation reaction. This carbonylation method is to produce an unsaturated or a saturated carboxylic ester (methyl methacrylate) by causing the chemical rea...  
JPH09176051A
To obtain a β,γ-unsaturated compound in a high yield and selectivity by allowing a conjugated alkadiene to react with an active hydrogen-containing compound using a specific palladium complex catalyst. (A) A palladium compound and a tr...  
JPH09169690A
To obtain the subject compound in a high selectivity and in a high yield by using various kinds of perfluoroalkanesulfonylimide group-containing compound on the acylation reaction or Friedel-Craft acylation reaction of an alcohol compoun...  
JP2618388B2
A process for oxidizing aromatic and alkyl substituted aromatic compounds to carbonyl containing compounds by contacting an aromatic and alkyl aromatic compound with an aqueous solution of ceric methanesulfonate having from at least 1.5 ...  
JP2618389B2
A process for oxidizing aromatic and alkyl substituted aromatic compounds to carbonyl containing compounds by contacting an aromatic and alkyl aromatic compound with an aqueous solution of ceric trifluoromethanesulfonate having from at l...  
JP2617960B2
A stereoconvergent process is described for preparing optically active alpha-arylalkanoic acids using as starting substance a diastereoisomeric mixture of ketals of formula in which the substituents have the meanings given in the descrip...  
JPH09505817A
PCT No. PCT/EP94/03891 Sec. 371 Date Jul. 3, 1996 Sec. 102(e) Date Jul. 3, 1996 PCT Filed Nov. 24, 1994 PCT Pub. No. WO95/15321 PCT Pub. Date Jun. 8, 1995The invention relates to a process for producing 8 alpha ,12-oxido-13,14,15,16-tetr...  
JP2614614B2
Optically active compounds of the formula I (I) in which R1 is C1-C4-alkyl, phenyl or benzyl, R2 is a radical of the formula II or IIa (II) (IIa) in which R3 is H or -CH3, or R1 and R2 together form a radical of the formula in which R2 h...  
JP2606184B2
PURPOSE: To safely obtain a compound useful as a synthetic intermediate for antitumor agent in high purity, in high yield and safely by reducing 2-cyano-4- methoxy-3,5-dimethylpyridine with a catalyst in an acidic solvent in the presence...  
JP2602639B2
PURPOSE: To safely obtain an acyl fluoride derivative useful as a synthetic intermediate for medicines and agrochemicals in a high yield by a simple operations by reacting a carbinol derivative with a lead compound in the presence of a s...  
JPH09104642A
To obtain a mixed acid anhydride useful for functional materials, dyes, medicines, agrochemicals or photographic chemicals, or as an intermediate therefor, without deposition of the hydrohalogenide salt of an amine as a dehydrohalogenati...  
JPH0975735A
To obtain a catalyst less liable to cause the leaching of sulfuric acid even in the case of use in a polar solvent such as water or alcohol with satisfactory reproducibility by washing a sulfuric acid-contg. solid acid catalyst with one ...  
JP2588695B2
PURPOSE: To easily obtain the subject compound in high reaction rate and high selectivity without forming any byproduct by oxidizing an (alkyl)aromatic compound with a new solid cerium (IV) compound as oxidant. CONSTITUTION: This compoun...  
JPH0957110A
To obtain a Lewis acid catalyst accelerated in reaction speed in org. synthesizing reaction due to various electron withdrawing reactions and in creased in catalytic activity by using a complex having a perfluoroalkanesulfonylamide group...  
JP2580538B2
PURPOSE: To selectively acetalize the specific sites of a saccharide in a good yield by reacting the saccharide with a bulky organic group-having thiocarbonyl compound in the presence of a base and a silver salt or a copper salt, while i...  
JP2580736B2
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...  
JP2577941B2  
JPH09500860A
(57) In manufacture of summary substitution beta zeolite, high エテン pressure is advantageously used with maturing and the low aluminum content of synthetic gel.  
JP2573734B2  
JP2571081B2  
JP2571080B2  
JPH09500106A
PCT No. PCT/EP94/01936 Sec. 371 Date May 1, 1996 Sec. 102(e) Date May 1, 1996 PCT Filed Jun. 14, 1994 PCT Pub. No. WO94/29018 PCT Pub. Date Dec. 22, 1994An exothermic chemical reaction, for example, hydroformylation, is carried out in a ...  
JPH093002A
PURPOSE: To esterify a polyhydric alcohol to an ester useful as raw material for polymeric material, biomaterial, etc., in high yield and short time using an easily available raw material by reacting a carboxylic acid with a polyhydric a...  
JP2568196B2  
JP2563077B2
PURPOSE: To efficiently O-alkylate a phenolic compound by reacting the phenolic compound with an alkanol in gaseous phase using an effective amount of catalyst selected from trivalent rare earth metal orthophosphates. CONSTITUTION: O-alk...  
JPH08325190A
To reduce waste materials and prepare the subject compound without using a heavy metal in high yield so that an amine by-product can be regenerated by reacting specific raw materials in one pot, producing a Mannich base and then eliminat...  
JPH08325193A
PURPOSE: To obtain an olefinic carboxylic acid compound using raw materials having low toxicity in high yield in such a state that by-products are hardly formed and purification is facilitated by reacting a specific cyclopropane derivati...  
JPH08325167A
To obtain a reagent having an alkoxyl group having an unsaturated group at the β-position, e.g. propargyl, benzyl or allyl group and useful for cleaving an unsaturated alkoyloxycarbonyl functional group. (A) A reagent comprising (I) an ...  
JP2558055B2
PURPOSE: To provide new compounds useful as reducing agents for functional organic compounds. CONSTITUTION: A compound of the formula (wherein X represents Cl, Br or I; (y) is 0 to 6; (n) is 1 to 3; ether is a 2-30C aliphatic or cycloali...  
JP2558051B2
PURPOSE: To provide the subject reagent having excellent selectivity and useful for peptide synthesis or the like comprising an aqueous phase, a specific catalyst and a nucelophilic compound soluble in water, which cleaves unsaturated al...  
JP2549047B2
PURPOSE: To obtain an industrially advantageous method for producing a mixed acid anhydride in which a fatty acid chloride can effectively be utilized by the presence of an organic tertiary amine and the mixed acid anhydride can simultan...  
JP2546559B2
PURPOSE: To obtain the compound useful as a highly reactive reagent without purification by bringing a boranemethylsufide into contact with a pinene and then reacting it with an acid chloride. CONSTITUTION: A diisopinocamphenylborane of ...  
JP2547089B2  
JPH08509906A
An exothermic process for forming a product which may be in liquid phase is disclosed wherein a first reactant (3), preferably a liquid reactant, is directly fed into a reaction (10) containing mixing elements (12, 58) and which comprise...  
JP2543522B2  

Matches 951 - 1,000 out of 1,702