| Document |
Document Title |
|
JPH0457663B2 |
|
|
JPH0456811B2 |
|
|
JPH0455437B2 |
A process for preparing glyphosate and derivatives of related structure. A precursor primary or secondary amine, such as glycine, is condensed with a carbonyl compound, such as formylphosphonic acid or its acetais, and the condensation p...
|
|
JPH0455179B2 |
2-Alkyl-1, 4-butanediols are prepared from 1, 4-butynediol or 1, 4-butenediol by catalytic hydrogenation and reaction with an aldehyde.
|
|
JPH0453859B2 |
|
|
JPH0453587B2 |
Pyrophorically activated metals are suitable catalysts for electrolyzing water and for other reactions in which nickel or platinum are catalysts. Pyrophoricity can be eliminated without destroying the catalytic effects. Protective coveri...
|
|
JPH04235956A |
PURPOSE: To provide a process for producing anthranilic acid which is started from directly corresponding ortho-nitrotoluene and does not require the intermediate isolation of the sulfonic acid obtainable from this compd. CONSTITUTION: T...
|
|
JPH04234332A |
PURPOSE: To easily produce propylene glycol with ethylene glycol from formaldehyde. CONSTITUTION: Formaldehyde is converted into a mixture of a polyhydroxy compd. by self condensation in an alkyli medium by a well-known method in the fir...
|
|
JPH04230655A |
PURPOSE: To obtain an aminoaryl sulfonic acid at a high space-time yield and the decreased amt. of the catalyst to be used, by catalytically hydrogenating nitroaryl sulfonic acid under specified conditions. CONSTITUTION: Hydrogen is fine...
|
|
JPH04224538A |
PURPOSE: To provide the preparation process of an alkyltetrahydroanthrahydroquinone-containing solution, that of alkyltetrahydroanthrahydroquinone or alkyltetrahydroantraquinone and that of hydrogen peroxide. CONSTITUTION: Alkylanthraqui...
|
|
JPH04224535A |
PURPOSE: To obtain the subject compound in high purity and yield by reacting halogenobenzenes with hydrogen in the presence of a catalyst and a base. CONSTITUTION: A compound expressed by the formula [X is Br or Cl; (n) is 1-3], preferab...
|
|
JPH04221331A |
PURPOSE: To provide 4-hydroxyphenethyl alcohol with high purity and high yield. CONSTITUTION: 4-Hydroxyphenethyl alcohol is prepared by epoxidizing 4- acetoxystyrene with a percarboxylic acid to produce 4-acetoxyphenyl oxirane, catalytic...
|
|
JPH04221353A |
PURPOSE: To provide new polyalkoxyamine effectively used as a synthetic intermediate of dispersant additives. CONSTITUTION: This compound is represented by formula I [x+y is 1-19, (y) is 0 or integer; D is the formula, -(CHR-CHR1-O)n-CHR...
|
|
JPH04221334A |
PURPOSE: To provide a method for preparing 4-(2'-methoxyethyl)phenol from 4-hydroxyacetophenone. CONSTITUTION: The objective 4-(2'-methoxyethyl) phenol is directly prepared by brominating 4-hydroxyacetophenone to produce α-bromo-4- hydr...
|
|
JPH0445508B2 |
|
|
JPH0443908B2 |
epsilon -caprolactam is prepared by gas phase catalytic synthesis where cyclohexanone oxime is brought into contact with a crystalline zeolite, for example, aluminosilicate zeolite or metallosilicate zeolite having a constraint index of ...
|
|
JPH0441135B2 |
|
|
JPH0441136B2 |
|
|
JPH0427220B2 |
A process for production of sorbitol from 50-98.5 DE hydrolyzed starch solution by hydrogenation over a nickel catalyst at a pH of from 3.0 to 7.0, 120 to 160 DEG C. and 500 to 2000 psig (35 to 140 bars) until the reducing sugar value is...
|
|
JPH0427221B2 |
Compounds of the general formulae (I) (II) (III) and (IV) in which R may be a methyl or ethyl radical and R1 may be a hydrogen, methyl or ethyl radical are disclosed. Also provided as part of the present invention are processes for the p...
|
|
JPH0420906B2 |
Preparation of 3,3'- or 3,4'-diaminobenzophenone by nitrating a chloronitrobenzophenone mixture obtained by the Friedel-Crafts reaction between 3- or 4-nitrobenzoyl chloride and chlorobenzene, and catalytically reducing and dechlorinatin...
|
|
JPH04103564A |
PURPOSE: To obtain the high-purity title compound in good yield and suppressed subsidiary production of an azo compound without filtration leak of a catalyst by subjecting a bis(3-nitrophenoxy) compound to catalytic reduction while addin...
|
|
JPH0419222B2 |
|
|
JPH0417939B2 |
|
|
JPH0417175B2 |
|
|
JPH0489482A |
PURPOSE: To obtain the title compound in high yield in an industrially advantageous way, useful as an intermediate for synthesizing medicines and dyes by reaction of quinoline with methanol in the presence of a hydrogenating catalyst. CO...
|
|
JPH0415218B2 |
|
|
JPH0415220B2 |
|
|
JPH0415217B2 |
|
|
JPH0466561A |
PURPOSE: To obtain the subject compound in an improved yield for a long period without producing any by-product by specifying the start-up and termination of the reaction when acrylonitrile is reacted with water in the presence of a Rane...
|
|
JPH0466560A |
PURPOSE: To obtain acrylamide useful as a monomer for various applications in improved selectivity by treating a practical Raney copper catalyst with a specific aqueous solution when acrylonitrile is reacted with water in the presence of...
|
|
JPH0459752A |
PURPOSE: To produce the objective compound in high activity and selectivity by specifying the amount of remaining aluminum in a catalyst in a specific range in a method for producing acrylamide by reacting acrylonitrile with water in the...
|
|
JPH0436250A |
PURPOSE: To readily and selectively obtain aldehydes and alcohols by dissolving a nitrile in water or a water-containing organic solvent, adding a hydrogenation catalyst thereto and reacting hydrogen therewith at the ordinary temperature...
|
|
JPH045022B2 |
The present invention relates to a process for preparing a 2-quinoxalinol compound, in the free form, of the following formula (II); (II) wherein R is hydrogen, halogen or a trifluoromethyl group, which comprises reducing a 2-quinoxalino...
|
|
JPH044020B2 |
PURPOSE:To obtain a catalyst having excellent washability and catalytic effect, by a Ni-Al alloy stable fiber having a specific thickness and length obtained by such a method that works are rotated at a high speed by using a lathe and ul...
|
|
JPH0421660A |
PURPOSE: To readily obtain the subject compound in high selectivity and yield by carrying out reductive alkylation of an N-alkyl-m-aminophenol as a raw material in the presence of a catalyst such as nickel while successively feeding H2 a...
|
|
JPH0413646A |
NEW MATERIAL:A phenylcyclohexyltetracarboxylic acid compound or phenylcyclohexyltetracarboxylic acid dianhydride expressed by formula I or II (X is H or cation). EXAMPLE: 3,3',4,4'-Phenylcyclohexyltetracarboxylic acid. USE: A raw materia...
|
|
JPH0380780B2 |
Composition consisting of from less than 100% to more than about 80% of trans-1-(2,6,6-trimethylcyclohexyl)-hexan-3-ol and a definite amount, but not more than about 20%, of cis-1-(2,6,6-trimethylcyclohexyl)-hexan-3-ol.Process for prepar...
|
|
JPH03291293A |
NEW MATERIAL:A compound expressed by formula I {Gn is sugar residue after removing H atoms in all the hydroxyl groups of a 5-6C reducing sugar or condensate thereof (provided that n is the condensation degree thereof and 1-10); A is R2(O...
|
|
JPH03273097A |
PURPOSE: To make it possible to obtain a decolored lipid mixture which does not have an unpleasant small by hydrogenating a lipid mixture derived from animal visceras in the presence of a hydrogenation catalyst or reducing the mixture wi...
|
|
JPH03255057A |
PURPOSE: To readily obtain the subject compound useful as a synthetic intermediate for medicines such as antimicrobial agents and agricultural chemicals in high yield by selectively dehalogenating a 2-chloro-3,4-difluoro-6-halgenoaniline...
|
|
JPH03249946A |
PURPOSE: To obtain a Raney Ni-based catalyst having good stereo-selectivity by alkali-developing an Ni-Al alloy powder, washing the powder with water, applying ultrasonic treatment in water and further modifying the powder with an optica...
|
|
JPH03240757A |
NEW MATERIAL: A polyamine of formula I (R is an organic group; R' is H or CH3; (x) is 0-3). EXAMPLE: T-Tallow-methyl dipropylene triamine. USE: The polyamines have surfactancy properties and are useful as known applications such as aspha...
|
|
JPH0367066B2 |
|
|
JPH03504505A |
This invention relates to a process for producing long chain alkyl amines from polyolefins by reacting (a) a polyolefin having a molecular weight in the range of 330-2000 with ozone in the presence of a solvent, (b) reacting the ozonolys...
|
|
JPH03204847A |
PURPOSE: To obtain the objective compound in pure and colorless state in high efficiency by using a dioxane as a solvent in the production of the subject compound by the catalytic reduction of a dinitrobenzanilide compound with hydrogen ...
|
|
JPH0357094B2 |
|
|
JPH0357095B2 |
|
|
JPH03197476A |
PURPOSE: To effectively and economically prepare a compound effectively used as a precursor of an antidote to a herbicide, by introducing a chloro derivative as a storting material to an aminoketone derivative and after hydrogenating rea...
|
|
JPH03197435A |
PURPOSE: To obtain the subject substance in high yield in the presence of a catalyst containing Ni or Pd in a liquid phase under pressure in producing monoglyme and diethylene glycol monomethyl ether by subjecting triethylene glycol to h...
|
