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JPH09143132A |
To realize a production process for an adduct of an amine to an α,β-unsaturated compound, useful in medical and cosmetic preparations, detergent and cleaning compositions and the like, promptly in high yield by carrying out the additio...
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JPH09124561A |
To suppress the deactivation of a catalyst and produce an amine in high selectivity, yield and space time yield without forming an olefin oligomer by reacting an olefin with ammonia or a primary or a secondary amine in the presence of a ...
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JP2604140B2 |
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JP2604165B2 |
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JP2590791B2 |
Process for the production of aminomalonic acid dinitrile salts from malonic acid dinitrile by the hydrogenation of its oximation product.
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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...
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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...
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JPH0940641A |
To easily obtain an amide in high efficiency by bringing an oxime in a liquid phase into contact with a zeolite catalyst bearing iminium ions to effect facilitating catalyst separation and recovery and also enabling continuous flow-throu...
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JP2577978B2 |
PURPOSE:To reactivate the platinum-group metal carrying catalyst with a simple and economical process by cleaning the catalyst deactivated in the synthesis of ammines in an aq. mineral acid soln. as a slurry, and then reducing the cataly...
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JP2577405B2 |
The invention relates to an improved process for the catalytic hydrogenation of DAHNP and a new process for preparing 2,4-diamino-5-formylamino-6-hydroxypyrimidine.
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JP2573872B2 |
3,3-Diarylacrylic acid amides are prepared by the reaction of a benzophenone with an acetamide in the presence of a base characterised in that a sodium alcoholate is used as the base.
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JP2567621B2 |
A process for ortho-cyanation of phenols or phenylamines which comprises reacting a phenyl compound having a hydroxy group or an optionally substituted amino or cyclic amino group, of which the ortho position is vacant, with trichloroace...
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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 ...
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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...
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JP2555547B2 |
PURPOSE: To economically obtain the subject compound as an agricultural germicide or an intermediate thereof with low levels of byproducts by treating the z-modification of a methoxyiminoacetamide or methoxyiminoacetate with an acid in a...
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JP2550410B2 |
A process for preparing S-metoprolol of the formula or a salt thereof, with high enantiomeric purity, is described, whereby a (S)-5-hydroxymethyl-3-isopropyloxazolidin-2-one sulfonic acid ester of the formula is prepared, and further rea...
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JPH08277263A |
PURPOSE: To obtain an amide compound useful as a raw material for nylons by the rearrangement reaction of an oxime compound in the presence of molybdenum and/or tungsten. CONSTITUTION: An amide compound is produced by the Beckmann rearra...
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JP2543958B2 |
Desferrioxamine B or a partially O-acylated derivative thereof is selectively acylated at the nitrogen atom of the amino group by treating a desferrioxamine B derivative in which the amino nitrogen and the hydroxyl oxygen carry an organi...
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JP2538997B2 |
Diazo compounds are prepared by diazo group transfer to activated methylene compounds using an azidoformamidinium salt as the diazo group transfer agent. Azo compounds are also prepared in this manner.
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JPH08245540A |
To obtain cyan compounds including double bond system enabling a large scaled industrial approach for dye synthesis excellent in hygiene useful for dye or the like by reacting cyan compound and the like to a specific compound, subsequent...
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JPH08245524A |
PURPOSE: To efficiently obtain amines useful as a raw material, etc., for medicines in high selectivity and yield under mild conditions by carrying out hydrogenation reduction of amides in the presence of a catalyst comprising an element...
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JPH08231490A |
To safely purify carbonyl chloride without liquefaction and highly profitably phosgenate by purifying contaminated carbon monoxide by adsorption in a solvent and using the obtained carbonyl chloride solution. This method of phosgenation ...
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JPH08225468A |
To obtain an organic compound bearing at least one oxo group difficult to be reduced in no need of corrosive dihalide without formation of salt by applying a novel process using a regenerable redox catalyst. An organic oxo compound (pref...
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JP2524685B2 |
PURPOSE: To provide a method for producing amides and peptides, in which side reactions are reduced. CONSTITUTION: A carboxylic acid is reacted with a prim. or sec. amine in the presence of a carbodiimide and a catalytic amt. of an N-hyd...
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JPH08208530A |
PURPOSE: To obtain an amine useful as a medicine or an intermediate therefor by treating a compound bearing an amino group protected with a phthaloyl group to remove the group therefrom. CONSTITUTION: A phthaloyl compound of formula I [A...
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JPH08507520A |
The instant invention is a method of coupling compounds comprising the steps of: a) forming a maleimide derivative by reacting a maleimide containing compound having the formula: (* CHEMICAL STRUCTURE *) with an amine functional compound...
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JP2510839B2 |
PURPOSE: To prepare the new compound derivatives, useful as bioreversible prodrug moieties, by allowing specific amines and acyloxyalkylcarbonate compounds to react with each other in the presence of aprotic polar solvent and a catalyst....
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JPH08157481A |
PURPOSE: To obtain the subject new compounds useful as an asymmetric reducing agent capable of efficiently synthesizing optically active amines in high optical purity. CONSTITUTION: The optically active oxazaboranaphthalenes of formula I...
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JP2500059B2 |
PURPOSE: To provide the titled novel compound useful for converting gentamicin B into isepamicin. CONSTITUTION: There is provided the aimed 2-formylmercatobenzothiazole of the formula. The aimed thiazole is obtained, for example, by cool...
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JPH0832702B2 |
The invention has as its subject a process for the preparation of thienylethylamines of the formula R-NR-R' where R represents the group and R' represents hydrogen or a group identical to R, by catalytic hydrogenation of a compound of th...
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JPH0830047B2 |
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JPH0819060B2 |
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JPH0819059B2 |
Asymmetric hydrogenation of prochiral N-arylketimines to give optically active secondary amines at a temperature of -20 DEG to 80 DEG C., a hydrogen pressure of 105 to 6.106 Pa with the addition of catalytic amounts of an iridium compoun...
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JPH0819009B2 |
A process for producing a carboxylic acid amide or ester, which comprises reacting an organic chloride having at least one chlorine atom on its ring of a substituted or unsubstituted, aromatic or heterocyclic hydrocarbon with carbon mono...
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JPH0853414A |
To obtain a new 4-amino-3-hydroxy-phthalimidine which is a starting raw material or an intermediate for producing a 3-substituted quinolinealdehyde and is important as a precursor for a 1,4-dihydropyridine. 4-Amino-3-hydroxy-phthalimidin...
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JPH0840994A |
To obtain the subject compound useful as an intermediate for producing dye, crop protecting agent and medicine and for a photographic industry, by reacting a nitro aromatic compound with an amide in the presence of both oxygen and a base...
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JPH0827111A |
PURPOSE: To producing a method for producing an arylamide bisnadimide, requiring neither a ring formation process nor a moisture-sensitive chloride, useful as a polymer precursor. CONSTITUTION: A nadimide compound containing a nadimide n...
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JPH0827112A |
PURPOSE: To obtain an N-acylated 2-chloro-5-aminomethylpyridine in a high yield without using ammonia by hydrogenating 2-chloro-5-cyanopyridine in the presence of an acylating agent. CONSTITUTION: A 2-chloro-5-(N-acyl-aminomethyl)pyridin...
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JPH085812B2 |
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JPH085811B2 |
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JPH08788B2 |
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JPH07116063B2 |
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JPH07112987B2 |
A process for the preparation of aromatic dialkylamines of the formula (1) (1) in which R denotes an alkyl-C1-C6 group, X and Y each denote a hydrogen, fluorine or chlorine atom or a hydroxyl, alkyl-C1-C4, alkoxy-C1-C4, carboxyl, carbalk...
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JPH07300454A |
PURPOSE: To convert a ketoxime or an aldoxime into a corresponding amide in a high selectivity and in a high production ratio, by bringing a solution of a ketoxime or an aldoxime into contact with a specific strongly acidic catalyst. CON...
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JPH0796502B2 |
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JPH07267959A |
PURPOSE: To obtain a novel compound having good tolerance and pharmacological properties, in particular, the angiotensin II antagonizing property, effective for prevention and treatment of hypertension, aldosterone disease, cardiac insuf...
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JPH07247268A |
PURPOSE: To obtain an azaspiro[4,5]decatrienone compound useful as an intermediate for pharmaceuticals, agrochemicals, etc., by cyclizing an oxime having a specific structure in the presence of a tetraalkylammonium perrhenate and trifluo...
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JPH07247270A |
PURPOSE: To obtain in an industrially advantageous way a quinoline compound useful for medicines or agrochemicals, by cyclization of an oxime of specific structure in the presence of a tetraalkylammonium perrhenate and trifluoromethanesu...
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JPH0780826B2 |
The invention relates to a process for the synthesis of N,N-dialkyl-hydroxylamines by reaction of the corresponding dialkylamine with H2O2, said reaction being carried out in the presence of a catalyst based on titanium-silicalite.
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JPH07213298A |
PURPOSE: To provide a method for degrading a polymer by subjecting the polymer having a terminal repeating unit comprising a nucleophile and a backbone carbonyl carbon to the attack of the nucleophile to the backbone carbonyl carbon by r...
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