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JPS6212729A |
PURPOSE: To produce isopropyl alcohol useful as a raw material in improved yield, without producing by-products, by reacting acetone with hydrogen in the presence of a catalyst while controlling the pH of the catalyst, the water- content...
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JPS621385B2 |
5-Diethylaminopentan-2-ol is obtained from 1-diethylamino-pent-2-yn-4-ol by hydrogenation, if a nickel catalyst is used in the presence of a basic alkali metal compound or alkaline earth metal compound and the hydrogenation is carried ou...
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JPS62985B2 |
A method of preparing a Raney metal alloy which is capable of self-disintegrating when contacted with water vapor. The self-disintegrating property is imparted to the alloy by incorporating into the alloy from 0.4 to 0.8 weight percent c...
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JPS62901B2 |
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JPS62742B2 |
PURPOSE:To produce the title formed body with increased contact area by adding trace amts. of one or more kinds of specified elements including rare earth elements to a Ni3Al type intermetallic cpd. to refine an alloy; forming the alloy ...
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JPS61286350A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS6155489B2 |
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JPS6153344B2 |
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JPS61251668A |
PURPOSE: To obtain the titled compound useful as a production raw material for pharmaceuticals, agricultural chemicals, etc., in high efficiency, at a low cost, economically on an industrial scale, by desulfurizing the whole sulfur conte...
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JPS61238342A |
PURPOSE: To enhance the mass moving capacity of a reaction apparatus, by selecting a condition for generating a large number of micropores with a pore size of 2W200μm in a molded substance and forming such a metal particle size such tha...
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JPS61229896A |
PURPOSE: To obtain the titled compound useful as an antibacterial agent, with simple procedure in high yield, by using a specific protected des-N- methylerythromycin derivative as a starting raw material and contacting the derivative wit...
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JPS6141344B2 |
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JPS61191641A |
@ The invention provides a process for the preparation of 4-fluorophenols of formulawherein n is 0 to 3, each R independently represents a halogen atom or an alkyl, alkoxy, cyano or optionally substituted amino group and Z represents a h...
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JPS6136979B2 |
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JPS61171448A |
A process is disclosed for the preparation of perfluoroalkanols by reacting an ester of a perfluorinated acid in the liquid phase with hydrogen under a pressure of between about 1 and 300 bars in the presence of a catalyst based on at le...
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JPS6129936B2 |
Disclosed is a process for the stereoselective hydrogenation of alpha -pinene to cis-pinane in which the formation of trans-pinane is suppressed. The hydrogenation is carried out in the presence of a hydrogenation catalyst, under hydroge...
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JPS61145195A |
NEW MATERIAL:A compound of formula I [R is 1W11C alkanepoliyl which may be substituted with groups other than alkyl; Z1 is H, 1W6C alkyl; Z2 is H, 1W6C alkyl, acyl; when a combustion or all of R, Z1 and Z2 are simultaneously alkanopoliyl...
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JPS61134370A |
PURPOSE: When an indole is produced by catalytic reaction of 2-(o- aminoaryl)-ethanol, the reaction is effected in the presence of Raney nickel, Raney cobalt or Raney copper under heating. CONSTITUTION: The catalytic reaction of 2-(o-ami...
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JPS61126076A |
PURPOSE: To obtain the titled substance useful as an intermediate for drugs in high purity in high yield, by reacting 3-hydroxybenzaldehyde with piperidine in a solvent such as an alcohol, etc., and subjecting the reaction product to cat...
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JPS6120548B2 |
2-(2,2-Dicyclohexylethyl)piperidine is prepared via the catalytic hydrogenation of 2-(2,2-diphenylethenyl)pyridine in a single step. High yields are obtained using an anhydrous Raney nickel catalyst.
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JPS6120343B2 |
A particularly active Raney nickel catalyst is provided with a high-iron content, containing about 10 to 30% by weight of iron relative to the sum of the active metals nickel and iron. The catalyst can be prepared by treating aluminum/ni...
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JPS6183150A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS6115055B2 |
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JPS6176447A |
PURPOSE: To obtain a stable amount of an acid amide compound, easily and stably, and to facilitate the precipitation and filtration of the reaction catalyst from the reaction liquid, by hydrating a nitrile compound in a liquid-phase susp...
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JPS619318B2 |
1502537 2 - Desoxy - streptamine derivatives ROUSSEL-UCLAF 23 July 1976 [23 July 1975] 30746/76 Heading C2C Novel N 1 - [L(-) - 2 - hydroxy - 4 - aminobutyryl] - 4 - O - [21,61 - diamino - 21,61 - didesoxy - α,D - glucopyranosyl] - 6 - ...
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JPS619303B2 |
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JPS6143130A |
PURPOSE: To produce 1,2,3,4-tetrafluorobenzene useful as an intermediate of agricultural chemicals and pharmaceuticals, easily, in high yield, in an industrial scale, by decarbonating 3,4,5,6-tetrafluorophthalic acid in an aqueous medium...
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JPS6140256A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS6136239A |
PURPOSE: In producing dihydro-β-ionone useful as perfume, etc. by reducing catalytically β-ionone, to obtain the aimed compound advantageously, by reducing selectively the double bond of a side chain by the use of a specifically treate...
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JPS614817B2 |
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JPS613790B2 |
There is described the stereoselective total synthesis by a variety of routes of novel suitably substituted DELTA 2,3-1, 4-morpholine-2-carboxylic acids possessing a fused alpha -lactam ring in the 1,6-position and carrying a substituent...
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JPS612047B2 |
A process for the preparation of cyclopentene which comprises selectively hydrogenating cyclopentadiene in the liquid phase by contacting cyclopentadiene with hydrogen in the presence of a hydrogenation catalyst comprising a highly dispe...
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JPS60260544A |
PURPOSE: To obtain the titled compound useful as a raw material for synthesis of polyamide resins, by catalytically reducing succinonitrile in the presence of Raney cobalt catalyst coexisting with an alkaline earth metal oxide or hydroxi...
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JPS60258181A |
A process for preparing 1H-pyrrolo-[3,2-c]-pyridine or 5-aza-indole in high yield, comprising condensing 3-methyl-4-nitropyridine-1-oxide with a compound having a formula (III) wherein R represents a di-loweralkylamino, morpholino, piper...
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JPS60258135A |
PURPOSE: To retain high selectivity, improve the conversion and space time yield and obtain a ketone, by dehydrogenating a secondary alcohol in the presence of a Raney nickel catalyst under specific reaction conditions. CONSTITUTION: A s...
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JPS60248647A |
PURPOSE: To obtain α-phenylethylamine, economically, in high yield and purity, by the catalytic reduction of acetophenone in the presence of hydrogen, ammonia, a solvent and hydrated alumina, using a hydrogenation catalyst. CONSTITUTION...
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JPS6054293B2 |
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JPS6049180B2 |
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JPS60208963A |
A process for preparing diaminopyridines in high yield and in pure form by treating a solution of a nitrohydrazinopyridine with an activated nickel catalyst in the presence of hydrogen gas.
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JPS60202847A |
PURPOSE: To produce the titled compound in high yield and purity, by reducing 2-amino-2-nitroalkylbenzene in the presence of a hydrogenation catalyst under specific condition, using water as the solvent. CONSTITUTION: The objective compo...
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JPS6041645B2 |
There is disclosed a process for the preparation of cyclopentene from cyclopentadiene which comprises selectively hydrogenating cyclopentadiene in the liquid phase by continuously contacting cyclopentadiene with hydrogen while passing th...
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JPS60178877A |
PURPOSE: To obtain industrially and advantageously the titled compound which is an intermediate raw material for medicines, agricultural chemicals and fibers, etc., by subjecting tetrahydrofurfuryl alcohol to ammonohysis and hydrogenatio...
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JPS6039071B2 |
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JPS6032627B2 |
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JPS6032619B2 |
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JPS60137439A |
PURPOSE: To prevent deterioration of magnetic catalyst and also to disperse uniformly the magnetic catalyst in an original reaction soln. by backwashing said magnetic filter with the original reaction soln. CONSTITUTION: A reaction soln....
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JPS60136531A |
Novel substituted 5-cycloalkyl-2,2-dimethyl-pentan-3-ones of the formula (I) in which R is optionally substituted cycloalkyl, X is halogen and Y is hydrogen or halogen, The new compounds are valuable intermediates for the synthesis of su...
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JPS6029719B2 |
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JPS6029720B2 |
A useful antibiotic, 3',4'-dideoxykanamycin B can be prepared in shortened steps and in an improved overall yield by a new process starting from kanamycin B via new intermediate derivatives of kanamycin B in which all the amino groups an...
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JPS60126247A |
PURPOSE: To produce the titled substance economically, in high purity, by introducing hydrogen and a lower aliphatic alcohol to an aliphatic primary amine (or secondary amine) in the presence of hydrogenation-dehydrogenation catalyst und...
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