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JP4639792B2 |
The present invention provides a process which is able to suppress a catalyst cost as low as possible and maintain a conversion ratio of cyclohexanone and a selectivity of cyclohexanone oxime in an ammoximation reaction of cyclohexanone ...
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JP4633337B2 |
To provide a process for producing cyclohexanone oxime by which the oxime is produced in a high yield and the deterioration of a titanosilicate catalyst, particularly the lowering of its catalytic activity is controlled in the ammoximati...
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JP4629652B2 |
This invention relates to a novel crystal form of the 1:1 manganese (III) complex of N,N',N''tris[salicylideneaminoethyl]amine, a process for its preparation and the use thereof.
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JP2011021006A |
To produce an oxime in a good yield by performing the ammoximation reaction of a ketone with a peroxide and ammonia.This method for producing the oxime is characterized by performing the ammoximation reaction of the ketone with the perox...
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JP2011503052A |
Provided is a method of preparing a (6R)-3-hexyl-4-hydroxy-6-undecyl-5,6-dihydropyran-2-one, and a (5R)-2-hexyl-5-hydroxy-3-iminohexadecanoate derivative used in said method as an intermediate.
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JP4620592B2 |
An asymmetric alkyl compound producing method of the present invention includes a synthesizing step of carrying out an asymmetric synthesis reaction by mixing (i) a reaction solution containing a glycine imine ester, an alkyl halide, and...
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JP4621308B2 |
Preparation of iminoacetic acid derivatives of formula (I) comprises: (a) reacting a tert-amine of formula (II) with LiR7 in an aprotic solvent; (b) treating the resulting complex with Y1CO-COY1 (IV) to form a phenylglyoxylate of formula...
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JP4617643B2 |
To provide a new optically active quaternary ammonium salt having high performances as an axial asymmetry-containing spiro type phase transfer catalyst for an asymmetric alkylation reaction of a glycine derivative, advantageous to the nu...
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JP4618607B2 |
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JP4606041B2 |
The present invention relates to a method of producing an optically active 1-aryl-2-fluoro-substituted ethylamine compound of the formula [2] or a salt thereof by hydrogenolysis of an optically active secondary amine compound of the form...
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JP4605606B2 |
The present invention provides a compound of the following formula (I) below. This compound (I) can be produced by reacting a 2,2'-dimethylene bromide-1,1'-binaphthyl derivative, which can be produced by a relatively small number of proc...
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JP4607332B2 |
Propargylether derivatives of formula Iincluding the optical isomers thereof and mixtures of such isomers, whereinR1 is hydrogen, alkyl, cycloalkyl or optionally substituted aryl,R2 and R3 are each independently hydrogen or alkyl,R4 is a...
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JP4595804B2 |
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JP4595178B2 |
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JP4580616B2 |
Aqueous ketazine solution is extracted by using aliphatic hydrocarbon extractant having a b. pt. of 150-300 deg C at atmospheric pressure to extract ketazine solution having a molar excess of 50-200% ketone based on the ketazine. The aqu...
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JP4576834B2 |
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JP4577077B2 |
The present Invention provides a process for producing a cycloalkanone oxime by conducting a continuous ammoximation reaction in the presence of a titanosillcate catalyst with supplying a cycloalkanone, hydrogen peroxide, ammonia and an ...
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JP4577025B2 |
The present invention provides a process for producing a cycloalkanone oxime by a continuous ammoximation reaction in the presence of a titanosilicate catalyst, characterized in that the continuous ammoximation reaction is conducted with...
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JP4577205B2 |
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JP4577003B2 |
The present invention provides a process for producing an oxime by an ammoximation reaction of a ketone with a peroxide and ammonia in the presence of a titanosilicate that shows the x-ray diffraction pattern having peaks at the followin...
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JP4579174B2 |
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JP4574348B2 |
The present invention discloses a process for the ammoximation of carbonyl compounds, wherein a reaction in a liquid reaction system comprising a carbonyl compound, ammonia and hydrogen peroxide is carried out in the presence of a sillic...
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JP4555586B2 |
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JP2010531859A |
Substituted naphthalene derivatives (I) and their enantiomers, diastereoisomers, or acid or base addition salts, are new. Substituted naphthalene derivatives of formula (I) and their enantiomers, diastereoisomers, or acid or base additio...
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JP4552427B2 |
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JP4553735B2 |
A process for the preparation of substituted halogenated anilines from substituted halogenated 1-chlorobenzenes which comprises a) reacting a substituted halogenated 1-chlorobenzene selectively with an imine in the presence of a transiti...
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JP4552435B2 |
A process for producing an oxime is provided, wherein the process comprises the step of reacting a ketone, hydrogen peroxide and ammonia in the presence of a crystalline titanosilicate having MWW structure under the condition that the am...
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JP4548409B2 |
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JP2010201374A |
To provide a filtration method in which a high cross flow filtration rate can be obtained even when the regenerated titanium-silica-based catalyst, that is obtained by regenerating the titanium-silica-based catalyst having deteriorated a...
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JP2010195835A |
To reduce catalyst deactivation caused by dissolution of silicon in a used silicon-containing catalyst, prolong catalyst life and improve the duration of stable action, in a method for ammoximating carbonyl compound.In the method for amm...
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JP4534428B2 |
In producing cyclohexanone oxime by a method comprising the step of reacting cyclohexanone, hydrogen peroxide and ammonia in the presence of titanium silicate, a brand-new titanium silicate and a recycled titanium silicate which has been...
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JP4536841B2 |
Prochiral allylamines (I) are stereospecifically isomerized to enamines (II) or imines (III) over a rhodium, iridium or ruthenium catalyst containing at least one chiral phosphine ligand which is a ferrocene derivative (optionally fixed ...
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JP4528628B2 |
The invention relates to a process for mixing a first acidic aqueous solution comprising hydroxyl ammonium and phosphate with a second acidic aqueous solution comprising nitric acid at a temperature between 20 and 80 DEG C resulting in a...
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JP2009541232T5 |
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JP4522672B2 |
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JP4523258B2 |
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JP4511125B2 |
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JP4511191B2 |
A compound of formula (I): Het is pyridinyl, pyrimidinyl, thiophenyl, furyl, isothiazolyl or isoxazolyl, each being substituted by groups R 4 , R 5 and R 6 ; R 1 is hydrogen or halo; R 2 is hydrogen or halo; R 3 is optionally substituted...
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JP2010524973A |
The disclosure provides compounds, compositions and methods using these compounds and compositions to stimulate the differentiation of cells and inhibit excessive cell proliferation of certain cells, including cancer cells and skin cells...
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JP4505449B2 |
The present invention relates to bicyclic derivatives, process for their production, their uses and pharmaceutical compositions containing them. The invention provides a novel class of compounds useful in the treatment or prevention of d...
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JP4508526B2 |
The present invention relates to a process for preparing trioxime derivatives of the formula I in which the substituents R1 and R2 are identical or different and each is cyano, alkyl, haloalkyl or cycloalkyl, and R3 and R4 are identical ...
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JP4502293B2 |
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JP2010138032A |
To provide a method for producing an oxidized compound with industrial advantage, and a novel Ti-MWW precursor. A method for producing the Ti-MWW precursor comprises: a first step of heating a mixture containing a structure-directing age...
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JP2010520906A |
The 4-cycloallkyl or 4-aryl substituted phenoxyphenylamidine has general formula (I). The 4-cycloallkyl or 4-aryl substituted phenoxyphenylamidine having general formula (I), is new. R 1>H, mercapto or methyl linear or branched 1-8C alky...
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JP2010520903A |
The substituted phenylamidine has general formula (I). The compound having general formula (I), is new. (I) Y : O, NH or a single bond; R 1> : H, linear or branched 1-12C alkyl, 2-12C alkenyl, 2-12C alkinyl, cyclic 3-8C alkyl, 4-8C alken...
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JP4482783B2 |
An amino group of an alpha -amino acid ester is protected as an imine, and it is then reacted with a halomethyllithium to obtain an N-protected- alpha -aminohalomethylketone. Further, this N-protected- alpha -aminohalomethylketone is tre...
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JP4474861B2 |
To provide an optically active quaternary ammonium salt exhibiting high stereoselectivity as an axial asymmetry-containing spiro type phase transfer catalyst for an asymmetric alkylation reaction of a glycine derivative even for a small ...
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JP4447255B2 |
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JP4448327B2 |
This invention provides compounds of Formula I, methods for their preparation and use for preparing compounds of Formula II wherein R1, R2, R3, R5, R6, X and n are as defined in the disclosure. This invention also discloses preparation o...
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JP2010510258A |
Preparation of an amino glycol (I) comprises reacting a ketoxime compound (II) with the ethylene oxide in an aqueous solution in the presence of a base to obtain 2-hydroxyethylketoxime compound (III) and further reacting (III) in the pre...
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