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JPH07100668B2 |
The subject of the present invention is a new catalytic system and a process for the synthesis of acid halides, especially from haloforms. This process for halogenation by means of haloform is defined in that there is used, as catalyst, ...
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JPH07285905A |
PURPOSE: To provide a method for selectively oxidizing a primary or secondary alcohol having an easily oxidizable group and a heterocycle to an aldehyde or ketone without changing the group and heterocycle. CONSTITUTION: An aldehyde or k...
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JPH07509650A |
PCT No. PCT/EP93/01972 Sec. 371 Date Apr. 19, 1995 Sec. 102(e) Date Apr. 19, 1995 PCT Filed Jul. 23, 1993 PCT Pub. No. WO94/02245 PCT Pub. Date Feb. 3, 1994New titanium zeolite Beta catalysts which have been found to be useful as catalys...
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JPH0798772B2 |
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JPH0794451B2 |
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JPH07251059A |
PURPOSE: To prevent the clogging of a gas blow pipe, to stably produce a reaction product of high quality such as napthalenecarboxylic acid over a long period of time and to reduce the coloration of the formed reaction product. CONSTITUT...
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JPH07252183A |
PURPOSE: To easily obtain at low reaction temperature a phenol derivative useful as an intermediate for medicines or agrochemicals by dehydrogenating oxidation of a cyclohexenone derivative in the presence of a base and a palladium catal...
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JPH07247233A |
PURPOSE: To provide a method for producing an aromatic hydroxy compound such as phenol by one process from an aromatic compound such as benzene. CONSTITUTION: An aromatic compound such as benzene is oxidized by using an oxidizing agent s...
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JPH07242690A |
PURPOSE: To obtain acetals such as a glycosylated substance using a glycosyl fluoride as a glycosyl donor by reacting a fluoride of specific hemiacetal or hemiketal with a compound having hydroxyl group in the molecule in the presence of...
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JPH0780791B2 |
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JPH0778028B2 |
Propanol derivatives of formula (I) wherein X is a leaving group; R1 is H or a protecting group; and R2 is H, and R3 is a group-CH2Y wherein Y is a leaving group; or R2 and R3 together form =CH2. The propanol derivatives of the formula (...
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JPH07223991A |
PURPOSE: To obtain an acyl-substituted aromatic compound which is suitably used as a high value-added compound such as medicine, etc., in high yield at a reduced cost by effecting the reaction in the presence of a Friedel-Crafts catalyst...
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JPH0776183B2 |
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JPH0774168B2 |
1. A process for the catalytic oxidation of allylic groups with oxygen or an oxygen-containing gas, characterized by oxidizing an isoprenoid, which has at least one allylic hydrogen atom, in an inert ketone or ester in the presence of a ...
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JPH07206736A |
PURPOSE: To provide a method for economically oxidizing a hydrocarbon by hydrogen peroxide so as to obtain the aimed product in high yield by using a new catalyst, a mordenite containing titanium in its crystal skeleton. CONSTITUTION: A ...
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JPH0768150B2 |
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JPH0768207B2 |
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JPH07188064A |
PURPOSE: To provide a simple, efficient as well as widely applicable production method of an amine salt of an organic acid, capable of avoiding problems such as decomposition of an organic acid under an acidic condition, and progressing ...
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JPH07179376A |
PURPOSE: To provide an improved method for eliminating ethane from ethylene as a supplied material, or propane from propylene in the production of a partial oxidation product. CONSTITUTION: An ethylene stream which contains ethane as an ...
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JPH07506101A |
PCT No. PCT/AU93/00174 Sec. 371 Date Feb. 13, 1995 Sec. 102(e) Date Feb. 13, 1995 PCT Filed Apr. 23, 1993 PCT Pub. No. WO93/22266 PCT Pub. Date Nov. 11, 1993Active hydrogen containing organic compounds, for example alcohols, thiols, phen...
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JPH07165618A |
PURPOSE: To selectively oxidize a wide variety of organic compounds such as ethylene, propylene, toluene and xylene most simply by using a most inexpensive oxidizing agent comprising elemental oxygen, a catalyst composed of palladium and...
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JPH0751553B2 |
The invention relates to a new process for preparing active esters or carboxylic acids, which consists in reacting a carboxylic acid, in the presence of an agent for binding hydrohalic acid, with a carbonate of formula: in which R1 denot...
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JPH0749403B2 |
A novel, one-pot procedure for the preparation of N-acryloyl- alpha -amino acids involves the steps of: i) reacting a ketone, an ammonium salt, and a cyanide salt in water, optionally in the presence of ammonium hydroxide and a co-solven...
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JPH07138190A |
PURPOSE: To obtain an ester or an amide in which amino group is substituted under neutral conditions in one stage by using the amide as a raw material without forming an inorganic salt as a by-product. CONSTITUTION: This method for produ...
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JPH07118180A |
PURPOSE: To obtain an alkylated or acylated product selectively in high yield using a catalyst having high reaction activity. CONSTITUTION: The objective Friedel-Crafts-type alkylated product, esp. benzylated product, or acylated product...
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JPH0733340B2 |
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JPH0782281A |
PURPOSE: To provide the subject new compound manifesting both highly excellent reactivity and reaction characteristics as a ligand, giving high branch/linear form ratio, and capable of producing an intermediate for medicines by hydroform...
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JPH0782202A |
PURPOSE: To produce ketones from secondary alcohols by dehydrogenation reaction with a catalyst of high reaction activity, high selectivity to ketones and thermally stable structure. CONSTITUTION: Hectorite or hectorite exchanged with io...
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JPH0769936A |
PURPOSE: To produce an arom. carboxylic acid in a high yield at a high selectivity by an easier and more economical process than conventional processes by directly oxidizing a methyl-substd. arom. compd. CONSTITUTION: A compd. of the for...
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JPH0714906B2 |
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JPH0713037B2 |
Carboxylic esters are prepared from carboxylic acids and alcohols by using neutral phosphites containing oxetane groups as the esterification catalysts.
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JPH0710787B2 |
An acylated diketonic compound is produced by rearrangement of the corresponding enol ester in the presence of a cyanide source. In one embodiment the cyanide source is employed with a molar excess of a moderate base, with respect to the...
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JPH0710806B2 |
The invention provides a novel process for producing alpha -keto-carboxylic acid esters that are useful as intermediates for the preparation of pharmaceutical drugs in high yield by oxidizing alpha -hydroxycarbocyclic acid esters with hy...
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JPH0710859A |
PURPOSE: To obtain selectively compounds useful for raw materials of perfumes, solvents, pharmaceutical preparations, polymers or the like in a high yield by dehydrogenating diols by passing them in liquid phase over a catalyst containin...
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JPH0711275A |
PURPOSE: To provide a process for producing a substituted acylating agent by the reaction of an enophile with an ene by the thermal route. CONSTITUTION: A process for producing a substituted acylating agent is provided wherein (a) the mo...
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JPH072721A |
PURPOSE: To efficiently prepare an alkyl ketene dimer by the dehydrohalogenation of a linear fatty acid halide with a cyclic tetiary amine in an inert solvent. CONSTITUTION: An alkyl ketene dimer is obtained by reacting a 8-22C saturated...
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JPH06345687A |
PURPOSE: To provide a method for producing a carboxylic acid ester, capable of producing the carboxylic acid ester in a good yield without using an activating agent. CONSTITUTION: The trialkylsilyl ester of a carboxylic acid is reacted w...
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JPH06336459A |
PURPOSE: To provide a new production method which can produce an ester or lactone useful as a synthetic intermediate for a caprolactam and a synthetic intermediate for an organic solvent, a pharmaceutical and agrocultural agent and a per...
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JPH06336468A |
PURPOSE: To obtain the subject new compound useful as a carbonyl group introducing agent or an amino group or an imino group protecting agent. CONSTITUTION: This bisiminocarbonate is expressed by formula I (R1 and R2 are H, 1-20C alkyl o...
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JPH06321841A |
PURPOSE: To prepare 3-5C-α,β-monoethylenic unsaturated aldehyde, carboxylic acid or nitrile. CONSTITUTION: At the time of the catalytic gas-phase oxidation or gas-phase ammooxidation of desired α,β-monoethylenic unsaturated compound ...
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JPH06316544A |
PURPOSE: To easily and rapidly prepare an aromatic compound by using a small amount of a copper salt of a hydroxy carboxylic acid from an aryldiazonium salt. CONSTITUTION: An aromatic compound of formula Ar-X (Ar is optionally substitute...
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JPH0684317B2 |
A process for the transvinylation of a vinyl derivative of a Bronsted acid with a different Bronsted acid which comprises providing a liquid phase mixture containing said vinyl derivative and said Bronsted acid in the presence of a ruthe...
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JPH06285362A |
PURPOSE: To effectively utilize the heat of reaction in an exothermic catalytic reaction in the presence of a catalyst such as a transition-metal complex and to separate and recover the reaction product simply on an industrial scale. CON...
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JPH06279364A |
PURPOSE: To provide an industrially advantageous method for producing an ester in which the operation is simple and by which the high-quality ester is obtained. CONSTITUTION: This method for producing an ester is to subject an organic ac...
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JPH0676491B2 |
Novel aromatic poly(ether ketones) having imide, amide, ester, azo, quinoxaline, benzimidazole, benzoxazole, or benzothiazole groups, comprising, for example, a repeat unit are prepared by Friedel Crafts polymerization. i
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JPH0674230B2 |
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JPH06263681A |
PURPOSE: To efficiently obtain the subject compound excellent in stereocontrollability in a simple operation under mild conditions in high optical yield by hydroformylation of a specific vinyl compound using a specific catalyst. CONSTITU...
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JPH06263652A |
PURPOSE: To readily produce an optically active halogenated hydroxyolefin of remarkably high optical purity, useful as an intermediate for production of a medicine, an agrichemical, various kinds of functional materials, etc. CONSTITUTIO...
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JPH06254400A |
PURPOSE: To provide a method by which o-alkylation of a compd. having hydroxyl groups derived from an arom. compd. can be carried out with high selectivity in an industrially advantageous manner and arom. ethers are produced in a high yi...
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JPH0667856B2 |
PCT No. PCT/FR87/00238 Sec. 371 Date Apr. 1, 1988 Sec. 102(e) Date Apr. 1, 1988 PCT Filed Jun. 22, 1987 PCT Pub. No. WO87/07889 PCT Pub. Date Dec. 30, 1987.The asymmetric hydrogenation of carbonyl compounds is carried out in the presence...
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