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JP2001342171A |
To provide a method for simply and inexpensively producing a specific 1,3-bis(hydroxyalkyl)urea compound in good yield.This method for producing the 1,3-bis(hydroxyalkyl)urea compound comprises reacting an alkanolamine represented by NH2...
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JP2001523669A |
The invention relates to a process for preparing ar(alk)yluracils of the general formula (I)in whichA represents a single bond or represents alkanediyl,Ar represents optionally substituted aryl,R1 represents optionally substituted alkyl ...
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JP2001316348A |
To provide a new method for easily producing a cyano group- containing cyan coupler in high yield and productivity.This method for producing a cyan coupler of general formula 1 (R1 is H or a halogen; R2 and R3 are such that one of them i...
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JP2001302573A |
To provide a method for recovering useful substances from waste plastics containing substantially polycarbonate resin, in which the useful substances can be recovered from a large amount of the waste plastics by rapid decomposition of th...
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JP2001302611A |
To provide a new method for producing the subject compound mitigated in the burden of removing byproducts and purifying the reaction product. This method for producing 5-trifluoromethyldihydrouracil of formula 3 comprises reaction of a p...
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JP3222846B2 |
To provide a new compound effective for the induction and/or stimulation of the growth of hair and/or the retardation of the falling of hair and/or the treatment of seborrhea and/or acne. The objective compound is expressed by the formul...
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JP3222845B2 |
To obtain a new ceramide type compound useful for cosmetics and formulations for treating and maintaining the skin, hair, nails and eyelashes. This new ceramide type compound is expressed by the formula, R1-CH(OH)-CH(CH2OH)-NH-CO-NR2R3 (...
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JP3220375B2 |
To accurately detect trouble related to the jetting of air in the granulation of urea or the like. A plurality of air supply pipes 15 having outlets 13 jetting air to a granulation part 1 and nozzles 3 provided to the central parts of th...
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JP2001261630A |
To provide a method for producing a cyanoacylurea compound, by which the highly pure cyanoacylurea compound can be produced in a good yield in an industrially preferable state.This method for producing the cyanoacylurea compound by react...
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JP2001233825A |
To provide a method for increasing the turn-over number of a catalyst for oxidation reaction containing group VA, group VIA, group VIIA or group VIII metal element of the periodic table.Ultrafine particles of at least one kind of activat...
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JP2001511810A |
Process for the preparation of an N-acyl amino carboxylic acid by means of a carboxymethylation reaction. In this reaction, a reaction mixture is formed which contains a base pair, carbon monoxide, hydrogen and an aldehyde with the base ...
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JP3184745B2 |
PURPOSE: To obtain a new bisurea compound useful for producing a 1,3-dialkyl-2- imidazolidinone useful as an aprotic polar solvent and an intermediate for medicines and agricultural chemicals. CONSTITUTION: This bisurea compound of formu...
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JP3170292B2 |
A compound comprising a substituent of the formula (II) is disclosed as an HIV protease inhibitor. Intermediates for making such compounds and processes for making such intermediates are also disclosed.
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JP2001142216A |
To provide an additive capable of ensuring the PED stability of a photoresist composition. A urea compound of formula 1 having an appropriate level of basicity is introduced as an additive into a photoresist composition. The effect of am...
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JP2000516949A |
In the present process for the preparation of urea, an off-gas stream released during the synthesis of melamine in a high-pressure melamine process which consists predominantly of ammonia and carbon dioxide, is introduced into at least o...
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JP2000516661A |
This invention relates to methods for preparing novel, solid-phase transfer reagents, specifically phosgenated oxime resins and non-symmetrical ureas, that are useful as supports in combinatorial synthesis for the creation of libraries o...
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JP3110050B2 |
The invention is directed to a method for preventing or treating the symptoms associated with sensitive skin by applying an effective amount of at least one nitric oxide synthase inhibitor to treat or prevent the symptoms associated with...
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JP2000302742A |
To provide a method, based on the Hofmann degradation which uses a hypohalogenous acid in the presence of alcohol or amine in an aqueous basic medium, to produce the subject compound having free amino group from the corresponding malonic...
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JP2000302743A |
To provide a method for simultaneously modernizing the subjects plants by a technically easily method which adds a carbamic acid synthesis and decomposition section to the existing sections, to increase production capacity of each plant ...
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JP2000514049A |
PCT No. PCT/US97/10903 Sec. 371 Date Aug. 19, 1999 Sec. 102(e) Date Aug. 19, 1999 PCT Filed Jun. 24, 1997 PCT Pub. No. WO97/49680 PCT Pub. Date Dec. 31, 1997This invention relates to the use of phenyl ureas of formulas (I) and (II) in th...
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JP2000281638A |
To provide a method for simply separating urea from a solution containing urea such as a natural substance or wastewater utilizing a technique of membrane separation. A solution containing urea is treated with a nanofiltration(NF) membra...
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JP2000511949A |
Novel polymer-supported quenching reagents of Formula (I): P-L-Q, wherein P is a polymer of low chemical reactivity which is soluble or insoluble; Q is one or more quenching reagents, or an acid or base addition salts thereof, that are c...
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JP2000508619A |
Products prepared by reacting polyisocyanates with alkenyl or alkynyl compounds; then with perfluoroalkyl iodides & dehydroiodinating the product.
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JP2000159742A |
To obtain an O-alkyl isourea as an acid adduct salt in a high yield, if necessary, by dissolving and dispersing urea and an alkyl group donor in a diluent, followed by reacting them in a continuously operated reactor at a specific temper...
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JP2000507097A |
(57) [Summary] The present invention relates to isolated RNA molecules having a high affinity for a particular amino acid, methods of isolating the RNA molecules and their use. The RNA molecule is isolated via a method that includes vari...
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JP2000159519A |
To provide a plant and a method for producing ammonia and urea, in which both production cost and energy consumption can be reduced, almost whole quantity of CO2 formed in an ammonia-synthesizing plant is applicable to a raw material for...
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JP2000154173A |
To provide a method for producing an alkylated cyanoacetylurea by using a readily available raw material.Industrially available cyanoacetylurea is reacted with a carbonyl compound in a polar solvent under reducing conditions to produce a...
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JP3022694B2 |
PURPOSE: To readily obtain the subject compound which is an intermediate for insecticides and acaricides in high yield by reacting an N-alkoxymethy- lbenzamide derivative capable of being industrially and easily synthesized in one step w...
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JP3021705B2 |
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JP2000053600A |
To obtain the subject new safe compound having high selectivity for compounds having hydroxyl groups, oxygen-containing functional groups, or the like, capable of being easily handled, and useful as a fluorination reaction reagent. A tet...
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JP3007138B2 |
Certain novel hydroxamic acid derivatives having the structureinhibit the enzyme lipoxygenase. These compounds, and the pharmaceutically acceptable salts thereof, are useful in the treatment or alleviation of inflammatory diseases, aller...
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JP3003941B2 |
Novel N-[substituted aryl]-N min -(substituted alkoxy)-urea and thiourea derivatives are described, as well as methods for the preparation and pharmaceutical composition of same, which are useful in preventing the intestinal absorption o...
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JP3003706B2 |
In a process for the production of urea, substantially pure ammonia and carbon dioxide are reacted in a reaction space (1) from which comes out a reaction mixture subjected to stripping (2) to obtain a partially purified mixture sent to ...
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JP2000001466A |
To provide a method for recovering and utilizing urea dust and ammonia in exhaust gases discharged from a urea granulation unit. This method is to pass exhaust gases containing urea dust and ammonia, discharged from a urea granulation un...
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JPH11514374A |
A hydrolysis reactor for removal of urea, ammonia and carbon dioxide from a liquid phase comprising urea in aqueous solution advantageously comprises a dividing baffle extending horizontally at a preset height in the reactor in which it ...
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JPH11335345A |
To provide a method capable of preventing solidification of granular urea or powdery urea and provide a method for recovering melted urea from urea to which a solidification preventing agent is added. This method for preventing solidific...
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JP2987313B2 |
Novel cis-epoxide compounds of formula (I) are useful for treating or preventing diseases caused by HIV infection: wherein A, B, R1 to R4 and n have the same meanings as defined in the specification. The novel HIV protease inhibitor of t...
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JPH11322663A |
To easily and inexpensively obtain the subject compound useful as an intermediate for medicaments and agrochemicals by reaction between a specific diketene and fluorine gas followed by reaction with a specific nucleophilic reagent. This ...
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JP2965345B2 |
Water is removed from a mixture containing water, CO2 and one or more amines by pervaporation by bringing the mixture into contact with one side of a membrane and removing the water-containing permeate as a vapor from the other side of t...
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JPH11263923A |
To efficiently reduce dynamic and equilibrium surface tension of an aqueous composition by including an N,N-dialkylurea compound. This reduction in surface tension of an aqueous composition is realized by including an N,N-dialkylurea com...
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JP2949622B2 |
To obtain the subject compound useful for producing benzoylurea compounds capable of being used as insecticides by allowing a specific benzoyl fluoride to react with an azide compound in a solvent at a specified temperature. This benzoic...
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JP2951402B2 |
The present invention is concerned with compounds of formula (I) (I) wherein Ar is a mono- or bicyclic aromatic group optionally containing one or two heteroatoms independently selected from nitrogen, oxygen and sulphur, said group being...
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JPH11240859A |
To obtain the subject new compound having excellent insecticidal activity. This compound is shown by formula I [R1 to R3 are each H, nitro, cyano, a halogen, a 1-3C alkyl, a 1-3C haloalkyl, a 1-3C alkoxy or the like; R4 is H, nitro, cyan...
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JPH11209334A |
To obtain the subject high-purity compound simply, economically in a high yield from readily obtainable starting substances, by reacting calcium cyanamide with an alcohol and reacting the obtained isourea derivative with a primary or a s...
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JP2920741B2 |
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JP2915515B2 |
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JP2915516B2 |
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JPH11506468A |
A compound of formula (I) wherein R<1> is cyano, thiocarbamoyl, a group of formula (a) in which R<4> is hydrogen, lower alkyl which may have optionally substituted aryl, acyl, optionally substituted aryl, lower alkylthio or 1-lower alkyl...
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JP2896797B2 |
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JPH11140043A |
To prepare the subject derivative useful for encephaloma, colon cancer, Hodgkin's disease, lung cancer, multiple myeloma and the like by allowing a urea derivative to react with a metal nitrite in a two phase solvent system comprising an...
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