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JPH10182523A |
To produce a 1-substituted-2,2-difluoro-3-butene-1-ol in high yield under a mild condition by making aldehydes react with 3-bromo-3,3-difluoropropane in the presence of indium. This production of a 1-substituted-2,2-difluoro-3-butene-1-o...
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JPH10182520A |
To purify an aromatic aldehyde and an aromatic alcohol in high efficiency by adding a base to a mixed solution containing the aromatic aldehyde and the aromatic alcohol and distilling the mixture. An aromatic compound such as p-xylene is...
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JPH10506891A |
The present invention relates to a novel process for preparing (E)-1-amino-2-(fluoromethylene)-4-(p-fluorophenyl)butane, also known in the art as (E)-(p-fluorophenethyl)-3-fluoroallylamine, and novel intermediates thereof (E)-1-amino-2-(...
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JP2771857B2 |
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JP2771866B2 |
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JP2771256B2 |
Benzonitriles, benzaldehydes and benzyl alcohols of the formula I in which R<1> denotes methyl or ethyl, R<2> denotes alkyl, alkenyl, cycloalkyl, cycloalkenyl, bicycloalkyl, bicycloalkenyl or C1-C5-alkyl-substituted cycloalkyl, cycloaken...
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JP2769769B2 |
PURPOSE: To increase the yield of 8-hydroxycymene useful as intermediates of musk fragrance and to control the production of cymene as by-product by proceeding dehydrogenation in the vapour phase at higher temp. than the former technolog...
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JPH10168021A |
To provide a method for hydrogenating an organic compound while keeping a high space time yield and a long term stability of catalytic activities by reacting the organic compound in the presence of a metal glass (a catalyst of an amorpho...
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JPH10167957A |
To obtain the subject suppressing agent useful for treating skin diseases and improving corneum troubles through the action on cells themselves by compounding a specific alcohol as an active component. This suppressing agent is a composi...
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JP2760985B2 |
An aromatic naphthyl compound of the formula (I) wherein n is 0 or 1, R' is hydrogen, OH, acyloxy, alkoxy or NH2, R'' is hydrogen or lower alkoxy, or R' and R'' taken together form an oxo, methano or hydroxy-imino radical, R is -CH2OH or...
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JP2761374B2 |
To obtain the subject new compound used as an intermediate for synthesizing compounds inhibiting the proteases of retroviruses, especially the protease of human immunodeficiency virus causing human acquired immunodeficiency syndrome and ...
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JP2759097B2 |
The invention provides a process for the preparation of a compound of the general formula (I): wherein X, Y and R<1> to R<7> are as defined. In the process, the olefinic analog of the compound of general formula (I) is treated with a hal...
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JPH10139702A |
To industrially obtain a mixture of diastereomer having a richer and better fragrance, by reducing a starting raw material composed of a specific compound. (1'S)-(E)-3-methyl-5-(2,2,3-trimethylcyclopent-3-en-1-yl)pen
t-4-en-2- one is use...
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JP2751457B2 |
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JP2749589B2 |
Novel hydroxyalkyl-azolyl derivatives of the formula in which R, R<1>, R<2>, X and Y are as defined in the description, and their acid addition salts and metal salt complexes, a plurality of processes for the preparation of the novel sub...
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JP2750874B2 |
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JP2749782B2 |
PURPOSE: To provide new compounds exhibiting remarkable platelet anti- aggregation properties and useful for the diseases accompanied by platelet aggregation processes. CONSTITUTION: New compounds are represented by formula I [wherein A ...
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JP2748184B2 |
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JPH10114702A |
To separate an oxidation reaction product and an oxidation catalyst from an oxidation reaction mixture in high efficiency without causing the decomposition of the oxidation catalyst. A substrate (e.g. hydrocarbon) is oxidized by using an...
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JPH10109949A |
To obtain the subject compound not containing a large amount of chromium oxide in a high selectivity by the use of a safe catalyst having high activity by hydrogenating acetophenone using the specific copper-based catalyst. (B) Acetophen...
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JP2739254B2 |
An iridium-optically active phosphine complex is represented by the formula: [H2Ir(L<1>)(L<2>)]Y wherein L<1> is an optically active phosphine compound (II) or (III): wherein Ar is a phenyl group or a p- and/or m-lower (C1-4) alkyl-subst...
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JP2739505B2 |
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JP2741083B2 |
Enolic derivatives of a ketone are prepared by contacting the ketone with a mixed organo-manganous compound.
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JP2739728B2 |
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JP2740853B2 |
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JP2741091B2 |
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JP2739506B2 |
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JP2736934B2 |
The invention relates to a process for the conversion of 8-hydroxymenthenes into 8-hydroxycymenes by treating the 8-hydroxymenthenes in the vapour phase with a dehydrogenation catalyst, e.g. palladium. The process is preferably carried o...
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JPH1087535A |
To produce an unsaturated alcohol useful as an intermediate for medicines and perfumes using less expensive hydrated aldehyde as a raw material and a corrosion-free catalyst under mild conditions with a high yield, by performing reaction...
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JPH1087534A |
To provide a method for producing an unsaturated alcohol with a high yield and selectivity in the presence of a catalyst free from harmful catalyst components and consisting of less expensive materials. An unsaturated alcohol is produced...
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JPH1087480A |
To obtain the subject agent having direct treating and improving effect on various kinds of arteriosclerosis and exhibiting excellent safety by using natural geranylgeraniol as an active component. This agent contains geranylgeraniol of ...
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JP2733656B2 |
PCT No. PCT/FR86/00123 Sec. 371 Date Dec. 5, 1986 Sec. 102(e) Date Dec. 5, 1986 PCT Filed Apr. 14, 1986 PCT Pub. No. WO86/06064 PCT Pub. Date Oct. 23, 1986.The invention relates to a compound of formula: in which formula: R1 to R4 denote...
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JP2731148B2 |
Bicyclic aromatic compounds, having the following formula: in which: n=0 or 1; R' represents H, OH, C1-C4 alkoxy or C1-C4 acyloxy; R'' represents H or C1-C4 alkoxy; or R' and R'' taken together form an oxo (=O), methano (=CH2) or hydroxi...
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JP2731576B2 |
Oxidation of alkanes with organic hydroperoxides in a mixture of alcohols and ketones in the presence of osmium or of an osmium compound.
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JP2730925B2 |
2-Nonene-1,9-diol and derivatives thereof carrying a detachable protective group in the 9-position of the formula I or Ia and Ib in which R denotes a customary detachable protective group or hydrogen, with the proviso that R in the formu...
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JP2731377B2 |
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JPH1072385A |
To obtain the subject compound having effect of controlling noxious organisms such as insects and acarids, capable of protecting plants from damages caused by attach and invasion of these noxious organisms and useful as an insecticide an...
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JPH1072390A |
To obtain the subject new compound having antibacterial activity which is specific to Helicobacter pylori and capable of expecting uses as a selective antibacterial agent. This 1,6-di-substituted indane derivative is represented by formu...
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JP2727685B2 |
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JP2727661B2 |
PURPOSE:To make it possible to efficiently recover and re-use a specific palladium catalyst by depositing a palladium complex from reaction product liquid when the title compound is produced from a conjugated alkadiene and water in the p...
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JPH10502620A |
This invention relates to methods for preparing alkylating agents and use of the agents prepared. In particular, this invention relates to preparation methods for hydroxy halide and organooxy halide alkylating agents and their use for al...
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JP2720984B2 |
Phenyl-substituted epoxides of the formula where R1 and R2 are each hydrogen, alkyl, alkenyl, phenyl, halogen, nitro, alkoxy, haloalkyl, phenoxy or phenylsulfonyl, are prepared by reducing a haloacetophenone to a halohydrin and reacting ...
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JP2721550B2 |
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JPH1059883A |
To provide a method for catalytic oxidation of an isoalkyl aromatic hydrocarbon with a ketone, alcohol and peroxide, and to obtain a catalyst for the reaction. An isoalkyl aromatic hydrocarbon in the form of liquid phase is oxidized at 6...
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JP2720176B2 |
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JPH1053547A |
To obtain a high-purity hydroxyl group-containing vinyl compound by cleaning a hydroxyl group-containing vinyl compound with a specific aqueous solution and separating the compound to purify the hydroxyl group-containing vinyl compound. ...
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JP2717117B2 |
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JP2716737B2 |
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JP2714402B2 |
Polyprenols and polyprenyl phosphates are of the formula wherein represents a trans-isoprene unit, represents a cis-isoprene unit, -CH2- @@@CH2-CH2- represents a dihydroisoprene unit, l is an integer of 2 to 8, m is 0 or an integer of 5 ...
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JP2711893B2 |
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