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JP2002518367A |
A compound is provided having the formula: wherein R<1 >and R<2 >are independently hydrogen, hydroxy, alkoxy or acyloxy R<3 >and R<4 >are independently oxo, hydroxy or hydrogen; one of R<5 >or R<6 >is -A-B and the other is hydrogen, hydr...
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JP2002155035A |
To provide a compound which is expected to be a synthetic intermediate for medicines and agrochemicals, a separating agent for chromatography, or an optically resolving agent for racemates.This 3-amino-1-indanol represented by formula (I...
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JP2002145835A |
To provide a method for producing an arylamine having high solubility to a coating liquid and high compatibility with a binder when used for a electrophotographic photoreceptor and capable of stably producing such an electrophotographic ...
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JP2002509906A |
This invention relates to a novel advantageous process for the stereoselective preparation of 2-hydroxy-4-phenylbutyrates (HPB esters) and of their precursors. This is done by starting from readily accessible alpha-unsaturated alpha-hydr...
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JP2002088060A |
To provide a method for profitably producing an indolenine compound, by which the indolenine compound useful as the basic raw material for polymethine dyes used as sensitizing dyes, dyes for photorecording media, or photothermal conversi...
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JP2002508777A |
The invention relates to a novel method for aminating mononuclear aromatic compounds and polynuclear compounds containing at least one aromatic ring. The inventive method enables simple separation of the aminated mononuclear aromatic com...
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JP2002506836A |
This invention relates to a novel, inventive process for the preparation of biphenyls or aromatic olefins by coupling reactions of the Suzuki coupling and Heck coupling type, using allylpalladium catalysts of the mu-halo(triisopropylphos...
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JP3261101B2 |
To obtain a new aromatic diamine suitable for a raw material for polyamide which is satisfactory to flexibility and moldability and useful as an adhesive. This compound is shown by formula I {(m) and (n) are each 0 or 1;R is shown by for...
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JP3257688B2 |
A novel process for producing a-[(dialkylamino)substituted-methylene]b-oxo-(substituted) propanenitriles of the formula: where R, R1 and R2 are defined in the specification by reacting a substituted isoxazole with a diaklylamide dimethyl...
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JP3257670B2 |
To obtain a desired primary amine in high yield and selectivity by hydrogenating an impurity-containing cyanopropionaldehyde acetal in the presence of ammonia or primary amine and an alkali metal hydroxide. Cyanopropionaldehyde acetal co...
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JP2002047256A |
To provide a method for producing an optically active α-hydroxy-β- aminocarboxylic acid derivative.The compound (3), the compound (1) and the compound (2) represented by the following formulas (wherein R1 is an aralkyl or the like; X1,...
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JP2002012571A |
To provide a method for producing corresponding aldehydes in high yield and selectivity by reacting a carboxylic acid or an ester thereof with hydrogen.This method for synthesizing the aldehyde of general formula I [R1 to R3 are each hyd...
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JP2001524469A |
Disclosed is a three step synthesis of 11-aryl-5,6-dihydro-11H-dibenz[b,e]azepines from a 2-aminobenzophenone represented by the following structural formula:and a starting material represented by the following structural formula:Phenyl ...
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JP2001521019A |
[Chemical 1]
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JP2001519810A |
The present invention provides novel methods for the asymmetric synthesis of (S)-6-chloro-4-cyclopropylethynyl-4-trifluoromethyl-1,4-dihy
dro-2H-3,1-benzoxazin-2-one of formula (VI-i) which is useful as a human immunodeficiency virus (HI...
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JP3205063B2 |
PURPOSE: To provide a polymerizable monomer capable of producing an antimicrobial polymer exhibiting an excellent antimicrobial activity, excellent in safety and stability and capable of keeping its activity over a long period. CONSTITUT...
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JP2001512095A |
This invention concerns the use of a hydroxylic solvent in the preparation of enaminones from the corresponding amine N-oxides or propargylic amines via the general process outlined above (A).
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JP3197836B2 |
To provide a fixed Lewis acid catalyst high in reaction rate and reaction yield, easy in recovery and reuse, having rare earth metal in an active center and produced by fixing on a polymer compound, and the producing method, a synthesis ...
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JP2001199906A |
To provide a method for carrying out the optical resolution of an enaminone derivative without unstabilize the structure because the optical resolution of the enaminone derivative by an optically active acid has hardly been reported and ...
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JP3181812B2 |
PURPOSE: To economically and inexpensively obtain the subject compound in high purity in terms of an industrial use in high yield with causing a small amount of industrial waste by using an inorganic acid as a solvent, useful as a liquid...
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JP3167210B2 |
PURPOSE: To obtain a new compound, excellent in flexibility and biodegradability and suitable as a soft base, etc., for hair treating agents, etc., without stickiness in drying. CONSTITUTION: This compound is expressed by formula I {R1 a...
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JP3157180B2 |
PURPOSE: To provide the subject reagent which consists of specific magnesium benzyl fluoromalonate, allows the introduction of fluoromethyl group into the carbon of a carbonyl group and yields fluoromethyl ketone at a high yield by react...
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JP2001098070A |
To provide a solventless process for easily producing a tetracarboxylic acid diamine salt being a precursor necessary in producing a polyimide resin applicable to heat-resistant films, etc., through a route of a tetracarboxylic acid diam...
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JP3151687B2 |
PURPOSE: To obtain a 3-amino-6-arylazophenol derivative in high yield by synthesizing a 4-amino-o-quinone derivative from catechol and an amine compound in high yield in the presence of an acid and oxidizing agent followed by condensatio...
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JP3150565B2 |
PURPOSE: To produce 1-alkylaminoanthraquinone derivative useful as an intermediate for various dyes and pigments on an industrial scale in high purity and yield at a low cost by reacting a halogenoanthraquinone with an amine in the prese...
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JP3148484B2 |
PURPOSE: To provide an industrially advantageous method for producing 1- amino-5-benzoylaminoanthraquinone in high purity and yield. CONSTITUTION: The characteristic of this method for producing 1-amino-5- benzoylaminoanthraquinone compr...
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JP2001055362A |
To obtain a new compound useful for production of a thermoplastic polyimide, in which 3-aminophenoxy group and 3-aminobenzoyl group are respectively substituted at 4-position and 4'-position, having heat resistance which is characteristi...
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JP3137547B2 |
PURPOSE: To obtain an amorphous polyimide not only excellent in heat resistance but also having a good moldability by reacting a specific arom. diamine with a tetracarboxylic dianhydride and imidizing the resulting polyamic acid. CONSTIT...
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JP2000319235A |
To produce an aminohalomethyl ketone (salt) in high efficiency by reacting a specific amino acid ester with a specific organic halogenated silane, reacting the product with a halomethyllithium and treating with an acid. The objective α-...
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JP3110775B2 |
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JP3105032B2 |
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JP2000513729A |
The compounds of the formula: wherein R1, R2, R3 and A are as defined herein are useful, via potassium channel modulation, in the treatment of disorders associated with smooth muscle contraction. Such disorders include, but are not limit...
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JP2000256277A |
To obtain the subject compound useful as an intermediate for dye, coloring matter, pigment, etc. by reacting an aromatic amino compound with an aldehyde compound and hydrogen in a solvent in the presence of a noble metal catalyst so as t...
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JP2000256272A |
To obtain the subject new compound being a reagent for introducing a fluoromethyl group or -CH2F to a carbon atom of carbonyl in an organic substance structure, comprising a specific magnesium fluoromalonate. This compound is shown by th...
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JP3084964B2 |
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JP2000191607A |
To produce an aniline derivative in good operability on an industrial scale at a low cost without using a large amount of organic solvent. The objective aniline derivative of formula III (Z1 is NHA or an alkoxy) is produced by reacting a...
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JP3058399B2 |
PURPOSE: To obtain a new [[4-substituted acetyl-o-phenylene]dioxy]diacetic acid derivative useful as a synthetic intermediate for heterocyclic compounds, containing nitrogen and useful for preventing thrombotic diseases, e.g. diseases su...
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JP2000506497A |
Indane compounds of general formulas (7) and (8) and their pharmaceutical use particularly to achieve smooth muscle relaxing activity and/or mast cell stabilizing activity and/or anti-inflammatory activity as described, wherein in formul...
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JP3032110B2 |
PURPOSE: To obtain the compound suppressing HIV protease related to manifestation of proliferation and character of AIDS virus by hydrogenating a diamino- diphenyl-hexen-one derivative in the presence of a transition metal-containing cat...
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JP2000072728A |
To directly produce an optically active α-substituted-β-aminoketone derivative from an optically inactive starting raw material by carrying out asymmetric Mannich reaction using a specific comples, a Lewis acid and a specific derivativ...
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JP2000072727A |
To directly produce an optically active α-substituted-β-aminoketone derivative from an optically inactive starting raw material by the asymmetric Mannich reaction using an optically active lanthanum-alkali metal-binaphthol complex. (A)...
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JP2000502328A |
Indane compounds of general formulas (7) and (8) and their pharmaceutical use particularly to achieve smooth muscle relaxing activity and/or mast cell stabilizing activity and/or anti-inflammatory activity as described, wherein in formul...
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JP2000502072A |
Indane compounds of general formulas (7) and (8) and their pharmaceutical use particularly to achieve smooth muscle relaxing activity and/or mast cell stabilizing activity and/or anti-inflammatory activity as described, wherein in formul...
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JP3002547B2 |
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JP2999146B2 |
PURPOSE: To inexpensively racemize an unnecessary optically active aminoketone derivative 100 percent without passing through such a process that an intermediate is once formed from the derivative, isolating the intermediate is isolated ...
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JP2996616B2 |
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JPH11310558A |
To produce the subject tetramethoxybenzophenone that is useful for synthesis of a therapeutic medicine for rheumatoid arthritis in a high yield and in an industrial scale by nitrating a specific starting compound followed by reduction of...
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JPH11302236A |
To efficiently synthesize the subject compounds useful as an intermediate for producing medicines, etc., by reacting a silyl enol ether with an imine in the presence of a specific catalyst. A silyl enol ether represented by formula I [R1...
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JP2960281B2 |
PURPOSE: To provide a polyimide soluble in organic solvents, excellent in adhesive strength and melt flow stability, and useful for electric and electronic parts, etc., by imidating a polyamic acid obtained by reacting a specific aromati...
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JP2960255B2 |
PURPOSE: To obtain a new polyimide excellent in processability, heat resistance and low dielectric properties by selecting a polyimide having specified repeating structural units. CONSTITUTION: A polyimide is selected which has repeating...
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